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authorKevin O'Connor <kevin@koconnor.net>2017-05-07 21:19:10 -0400
committerKevin O'Connor <kevin@koconnor.net>2017-05-15 15:00:52 -0400
commitccaa25eaa5d10291bff332f88194befe643b729f (patch)
tree3f7128515464c8fcb7f2af33b22e950cc0bbe517 /lib/pru_rpmsg
parent969ee4c8f9a3080bc20b6a78e846bee8c9455dec (diff)
downloadkutter-ccaa25eaa5d10291bff332f88194befe643b729f.tar.gz
kutter-ccaa25eaa5d10291bff332f88194befe643b729f.tar.xz
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pru: Add initial pru_rpmsg library code for Beaglebone PRU
Add external code for using RPMsg on the Beaglebone PRU. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'lib/pru_rpmsg')
-rw-r--r--lib/pru_rpmsg/include/ReadMe.txt25
-rw-r--r--lib/pru_rpmsg/include/am335x/pru_cfg.h249
-rw-r--r--lib/pru_rpmsg/include/am335x/pru_ctrl.h155
-rw-r--r--lib/pru_rpmsg/include/am335x/pru_ecap.h128
-rw-r--r--lib/pru_rpmsg/include/am335x/pru_iep.h261
-rw-r--r--lib/pru_rpmsg/include/am335x/pru_intc.h912
-rw-r--r--lib/pru_rpmsg/include/am335x/pru_uart.h285
-rw-r--r--lib/pru_rpmsg/include/am335x/sys_mailbox.h210
-rw-r--r--lib/pru_rpmsg/include/am335x/sys_pwmss.h446
-rw-r--r--lib/pru_rpmsg/include/pru_rpmsg.h268
-rw-r--r--lib/pru_rpmsg/include/pru_types.h83
-rw-r--r--lib/pru_rpmsg/include/pru_virtio_ids.h42
-rw-r--r--lib/pru_rpmsg/include/pru_virtio_ring.h163
-rw-r--r--lib/pru_rpmsg/include/pru_virtqueue.h211
-rw-r--r--lib/pru_rpmsg/include/rsc_types.h347
-rw-r--r--lib/pru_rpmsg/include/types.h18
-rw-r--r--lib/pru_rpmsg/pru_rpmsg.c186
-rw-r--r--lib/pru_rpmsg/pru_rpmsg.patch16
-rw-r--r--lib/pru_rpmsg/pru_virtqueue.c149
19 files changed, 4154 insertions, 0 deletions
diff --git a/lib/pru_rpmsg/include/ReadMe.txt b/lib/pru_rpmsg/include/ReadMe.txt
new file mode 100644
index 00000000..958d74d0
--- /dev/null
+++ b/lib/pru_rpmsg/include/ReadMe.txt
@@ -0,0 +1,25 @@
+Programmable Real-time Unit (PRU) Software Support Package
+------------------------------------------------------------
+============================================================
+ INCLUDE
+============================================================
+
+DESCRIPTION
+
+ This directory provides header files for PRU firmware.
+
+ For more details about these header files, visit:
+
+ http://processors.wiki.ti.com/index.php/PRU-ICSS_Header_Files
+
+
+
+ADDITIONAL RESOURCES
+
+ For more information about the PRU, visit:
+
+ PRU-ICSS Wiki - http://processors.wiki.ti.com/index.php/PRU-ICSS
+ PRU Training Slides - http://www.ti.com/sitarabootcamp
+ PRU Evaluation Hardware - http://www.ti.com/tool/PRUCAPE
+ Support - http://e2e.ti.com
+
diff --git a/lib/pru_rpmsg/include/am335x/pru_cfg.h b/lib/pru_rpmsg/include/am335x/pru_cfg.h
new file mode 100644
index 00000000..175867c6
--- /dev/null
+++ b/lib/pru_rpmsg/include/am335x/pru_cfg.h
@@ -0,0 +1,249 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PRU_CFG_H_
+#define _PRU_CFG_H_
+
+/* PRU_CFG register set */
+typedef struct {
+
+ /* PRU_CFG_REVID register bit field */
+ union {
+ volatile uint32_t REVID;
+
+ volatile struct {
+ unsigned REVID : 32;
+ } REVID_bit;
+ }; // 0x0
+
+
+ /* PRU_CFG_SYSCFG register bit field */
+ union {
+ volatile uint32_t SYSCFG;
+
+ volatile struct {
+ unsigned IDLE_MODE : 2;
+ unsigned STANDBY_MODE : 2;
+ unsigned STANDBY_INIT : 1;
+ unsigned SUB_MWAIT : 1;
+ unsigned rsvd6 : 26;
+ } SYSCFG_bit;
+ }; // 0x4
+
+
+ /* PRU_CFG_GPCFG0 register bit field */
+ union {
+ volatile uint32_t GPCFG0;
+
+ volatile struct {
+ unsigned PRU0_GPI_MODE : 2; // 1:0
+ unsigned PRU0_GPI_CLK_MODE : 1; // 2
+ unsigned PRU0_GPI_DIV0 : 5; // 7:3
+ unsigned PRU0_GPI_DIV1 : 5; // 12:8
+ unsigned PRU0_GPI_SB : 1; // 13
+ unsigned PRU0_GPO_MODE : 1; // 14
+ unsigned PRU0_GPO_DIV0 : 5; // 19:15
+ unsigned PRU0_GPO_DIV1 : 5; // 24:20
+ unsigned PRU0_GPO_SH_SEL : 1; // 25
+ unsigned rsvd26 : 6; // 31:26
+ } GPCFG0_bit;
+ }; // 0x8
+
+
+ /* PRU_CFG_GPCFG1 register bit field */
+ union {
+ volatile uint32_t GPCFG1;
+
+ volatile struct {
+ unsigned PRU1_GPI_MODE : 2; // 1:0
+ unsigned PRU1_GPI_CLK_MODE : 1; // 2
+ unsigned PRU1_GPI_DIV0 : 5; // 7:3
+ unsigned PRU1_GPI_DIV1 : 5; // 12:8
+ unsigned PRU1_GPI_SB : 1; // 13
+ unsigned PRU1_GPO_MODE : 1; // 14
+ unsigned PRU1_GPO_DIV0 : 5; // 19:15
+ unsigned PRU1_GPO_DIV1 : 5; // 24:20
+ unsigned PRU1_GPO_SH_SEL : 1; // 25
+ unsigned rsvd26 : 6; // 31:26
+ } GPCFG1_bit;
+ }; // 0xC
+
+
+ /* PRU_CFG_CGR register bit field */
+ union {
+ volatile uint32_t CGR;
+
+ volatile struct {
+ unsigned PRU0_CLK_STOP_REQ : 1; // 0
+ unsigned PRU0_CLK_STOP_ACK : 1; // 1
+ unsigned PRU0_CLK_EN : 1; // 2
+ unsigned PRU1_CLK_STOP_REQ : 1; // 3
+ unsigned PRU1_CLK_STOP_ACK : 1; // 4
+ unsigned PRU1_CLK_EN : 1; // 5
+ unsigned INTC_CLK_STOP_REQ : 1; // 6
+ unsigned INTC_CLK_STOP_ACK : 1; // 7
+ unsigned INTC_CLK_EN : 1; // 8
+ unsigned UART_CLK_STOP_REQ : 1; // 9
+ unsigned UART_CLK_STOP_ACK : 1; // 10
+ unsigned UART_CLK_EN : 1; // 11
+ unsigned ECAP_CLK_STOP_REQ : 1; // 12
+ unsigned ECAP_CLK_STOP_ACK : 1; // 13
+ unsigned ECAP_CLK_EN : 1; // 14
+ unsigned IEP_CLK_STOP_REQ : 1; // 15
+ unsigned IEP_CLK_STOP_ACK : 1; // 16
+ unsigned IEP_CLK_EN : 1; // 17
+ unsigned rsvd18 : 14; // 31:18
+ } CGR_bit;
+ }; // 0x10
+
+
+ /* PRU_CFG_ISRP register bit field */
+ union {
+ volatile uint32_t ISRP;
+
+ volatile struct {
+ unsigned PRU0_IMEM_PE_RAW : 4; // 3:0
+ unsigned PRU0_DMEM_PE_RAW : 4; // 7:4
+ unsigned PRU1_IMEM_PE_RAW : 4; // 11:8
+ unsigned PRU1_DMEM_PE_RAW : 4; // 15:12
+ unsigned RAM_PE_RAW : 4; // 19:16
+ unsigned rsvd20 : 12; // 31:20
+ } ISRP_bit;
+ }; // 0x14
+
+
+ /* PRU_CFG_ISP register bit field */
+ union {
+ volatile uint32_t ISP;
+
+ volatile struct {
+ unsigned PRU0_IMEM_PE : 4; // 3:0
+ unsigned PRU0_DMEM_PE : 4; // 7:4
+ unsigned PRU1_IMEM_PE : 4; // 11:8
+ unsigned PRU1_DMEM_PE : 4; // 15:12
+ unsigned RAM_PE : 4; // 19:16
+ unsigned rsvd20 : 12; // 31:20
+ } ISP_bit;
+ }; // 0x18
+
+ /* PRU_CFG_IESP register bit field */
+ union {
+ volatile uint32_t IESP;
+
+ volatile struct {
+ unsigned PRU0_IMEM_PE_SET : 4; // 3:0
+ unsigned PRU0_DMEM_PE_SET : 4; // 7:4
+ unsigned PRU1_IMEM_PE_SET : 4; // 11:8
+ unsigned PRU1_DMEM_PE_SET : 4; // 15:12
+ unsigned RAM_PE_SET : 4; // 19:16
+ unsigned rsvd20 : 12; // 31:20
+ } IESP_bit;
+ }; // 0x1C
+
+
+ /* PRU_CFG_IECP register bit field */
+ union {
+ volatile uint32_t IECP;
+
+ volatile struct {
+ unsigned PRU0_IMEM_PE_CLR : 4; // 3:0
+ unsigned PRU0_DMEM_PE_CLR : 4; // 7:4
+ unsigned PRU1_IMEM_PE_CLR : 4; // 11:8
+ unsigned PRU1_DMEM_PE_CLR : 4; // 15:12
+ unsigned rsvd16 : 16; // 31:16
+ } IECP_bit;
+ }; // 0x20
+
+
+ uint32_t rsvd24; // 0x24
+
+
+ /* PRU_CFG_PMAO register bit field */
+ union {
+ volatile uint32_t PMAO;
+
+ volatile struct {
+ unsigned PMAO_PRU0 : 1; // 0
+ unsigned PMAO_PRU1 : 1; // 1
+ unsigned rsvd2 : 30; // 31:2
+ } PMAO_bit;
+ }; // 0x28
+
+
+ uint32_t rsvd2c[1]; // 0x2C
+
+
+ /* PRU_CFG_IEPCLK register bit field */
+ union {
+ volatile uint32_t IEPCLK;
+
+ volatile struct {
+ unsigned OCP_EN : 1; // 0
+ unsigned rsvd1 : 31; // 31:1
+ } IEPCLK_bit;
+ }; // 0x30
+
+
+ /* PRU_CFG_SPP register bit field */
+ union {
+ volatile uint32_t SPP;
+
+ volatile struct {
+ unsigned PRU1_PAD_HP_EN : 1; // 0
+ unsigned XFR_SHIFT_EN : 1; // 1
+ unsigned rsvd2 : 30; // 31:2
+ } SPP_bit;
+ }; // 0x34
+
+
+ uint32_t rsvd38[2]; // 0x38 - 0x3C
+
+
+ union {
+ volatile uint32_t PIN_MX;
+
+ volatile struct {
+ unsigned PIN_MUX_SEL : 8; // 7:0
+ unsigned rsvd2 : 24; // 31:8
+ } PIN_MX_bit;
+ }; //0x40
+} pruCfg;
+
+#ifdef __GNUC__
+static volatile pruCfg *__CT_CFG = (void *)0x00026000;
+#define CT_CFG (*__CT_CFG)
+#else
+volatile __far pruCfg CT_CFG __attribute__((cregister("PRU_CFG", near), peripheral));
+#endif
+
+#endif /* _PRU_CFG_H_ */
diff --git a/lib/pru_rpmsg/include/am335x/pru_ctrl.h b/lib/pru_rpmsg/include/am335x/pru_ctrl.h
new file mode 100644
index 00000000..3bade9f2
--- /dev/null
+++ b/lib/pru_rpmsg/include/am335x/pru_ctrl.h
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PRU_CTRL_H_
+#define _PRU_CTRL_H_
+
+/* PRU_CTRL register set */
+typedef struct {
+
+ /* PRU_CTRL_CTRL register bit field */
+ union {
+ volatile uint32_t CTRL;
+
+ volatile struct {
+ unsigned SOFT_RST_N : 1;
+ unsigned EN : 1;
+ unsigned SLEEPING : 1;
+ unsigned CTR_EN : 1;
+ unsigned rsvd4 : 4;
+ unsigned SINGLE_STEP : 1;
+ unsigned rsvd9 : 6;
+ unsigned RUNSTATE : 1;
+ unsigned PCTR_RST_VAL : 16;
+ } CTRL_bit;
+ }; // 0x0
+
+
+ /* PRU_CTRL_STS register bit field */
+ union {
+ volatile uint32_t STS;
+
+ volatile struct {
+ unsigned PCTR : 16;
+ unsigned rsvd16 : 16;
+ } STS_bit;
+ }; // 0x4
+
+
+ /* PRU_CTRL_WAKEUP_EN register bit field */
+ union {
+ volatile uint32_t WAKEUP_EN;
+
+ volatile struct {
+ unsigned BITWISE_ENS : 32;
+ } WAKEUP_EN_bit;
+ }; // 0x8
+
+
+ /* PRU_CTRL_CYCLE register bit field */
+ union {
+ volatile uint32_t CYCLE;
+
+ volatile struct {
+ unsigned CYCLECOUNT : 32;
+ } CYCLE_bit;
+ }; // 0xC
+
+
+ /* PRU_CTRL_STALL register bit field */
+ union {
+ volatile uint32_t STALL;
+
+ volatile struct {
+ unsigned STALLCOUNT : 32;
+ } STALL_bit;
+ }; // 0x10
+
+
+ uint32_t rsvd14[3]; // 0x14 - 0x1C
+
+
+ /* PRU_CTRL_CTBIR0 register bit field */
+ union {
+ volatile uint32_t CTBIR0;
+
+ volatile struct {
+ unsigned C24_BLK_IDX : 8;
+ unsigned rsvd8 : 8;
+ unsigned C25_BLK_IDX : 8;
+ unsigned rsvd24 : 8;
+ } CTBIR0_bit;
+ }; // 0x20
+
+
+ /* PRU_CTRL_CTBIR1 register bit field */
+ union {
+ volatile uint32_t CTBIR1;
+
+ volatile struct {
+ unsigned C26_BLK_IDX : 8;
+ unsigned rsvd8 : 8;
+ unsigned C27_BLK_IDX : 8;
+ unsigned rsvd24 : 8;
+ } CTBIR1_bit;
+ }; // 0x24
+
+
+ /* PRU_CTRL_CTPPR0 register bit field */
+ union {
+ volatile uint32_t CTPPR0;
+
+ volatile struct {
+ unsigned C28_BLK_POINTER : 16;
+ unsigned C29_BLK_POINTER : 16;
+ } CTPPR0_bit;
+ }; // 0x28
+
+
+ /* PRU_CTRL_CTPPR1 register bit field */
+ union {
+ volatile uint32_t CTPPR1;
+
+ volatile struct {
+ unsigned C30_BLK_POINTER : 16;
+ unsigned C31_BLK_POINTER : 16;
+ } CTPPR1_bit;
+ }; // 0x2C
+
+} pruCtrl;
+
+/* Definition of control register structures. */
+#define PRU0_CTRL (*((volatile pruCtrl*)0x22000))
+#define PRU1_CTRL (*((volatile pruCtrl*)0x24000))
+
+#endif /* _PRU_CTRL_H_ */
diff --git a/lib/pru_rpmsg/include/am335x/pru_ecap.h b/lib/pru_rpmsg/include/am335x/pru_ecap.h
new file mode 100644
index 00000000..8385fc9b
--- /dev/null
+++ b/lib/pru_rpmsg/include/am335x/pru_ecap.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PRU_ECAP_H_
+#define _PRU_ECAP_H_
+
+/* PRU_ECAP register set */
+typedef struct {
+
+ /* PRU_ECAP_TSCTR register bit field */
+ union {
+ volatile uint32_t TSCTR;
+
+ volatile struct {
+ unsigned TSCTR : 32; //31:0
+ } TSCTR_bit;
+ }; // 0x0
+
+ /* PRU_ECAP_CTRPHS register bit field */
+ union {
+ volatile uint32_t CTRPHS;
+
+ volatile struct {
+ unsigned CTRPHS : 32; //31:0
+ } CTRPHS_bit;
+ }; // 0x4
+
+ /* PRU_ECAP_CAP1 register bit field */
+ union {
+ volatile uint32_t CAP1;
+
+ volatile struct {
+ unsigned CAP1 : 32; //31:0
+ } CAP1_bit;
+ }; // 0x8
+
+ /* PRU_ECAP_CAP2 register bit field */
+ union {
+ volatile uint32_t CAP2;
+
+ volatile struct {
+ unsigned CAP2 : 32; //31:0
+ } CAP2_bit;
+ }; // 0xC
+
+ /* PRU_ECAP_CAP3 register bit field */
+ union {
+ volatile uint32_t CAP3;
+
+ volatile struct {
+ unsigned CAP3 : 32; //31:0
+ } CAP3_bit;
+ }; // 0x10
+
+ /* PRU_ECAP_CAP4 register bit field */
+ union {
+ volatile uint32_t CAP4;
+
+ volatile struct {
+ unsigned CAP4 : 32; //31:0
+ } CAP4_bit;
+ }; // 0x14
+
+ uint32_t rsvd118[4]; // 0x118 - 0x124
+
+ /* PRU_ECAP_ECCTL1 register bit field */
+ volatile uint16_t ECCTL1; // 0x28
+
+ /* PRU_ECAP_ECCTL2 register bit field */
+ volatile uint16_t ECCTL2; // 0x2A
+
+ /* PRU_ECAP_ECEINT register bit field */
+ volatile uint16_t ECEINT; // 0x2C
+
+ /* PRU_ECAP_ECFLG register bit field */
+ volatile uint16_t ECFLG; // 0x2E
+
+ /* PRU_ECAP_ECCLR register bit field */
+ volatile uint16_t ECCLR; // 0x30
+
+ /* PRU_ECAP_ECFRC register bit field */
+ volatile uint16_t ECFRC; // 0x32
+
+ uint32_t rsvd34[10]; // 0x34 - 0x58
+
+ /* PRU_ECAP_REVID register bit field */
+ union {
+ volatile uint32_t REVID;
+
+ volatile struct {
+ unsigned REV : 32; //31:0
+ } REVID_bit;
+ }; // 0x5C
+} pruEcap;
+
+volatile __far pruEcap CT_ECAP __attribute__((cregister("PRU_ECAP", near), peripheral));
+
+#endif /* _PRU_ECAP_H_ */
diff --git a/lib/pru_rpmsg/include/am335x/pru_iep.h b/lib/pru_rpmsg/include/am335x/pru_iep.h
new file mode 100644
index 00000000..757bb973
--- /dev/null
+++ b/lib/pru_rpmsg/include/am335x/pru_iep.h
@@ -0,0 +1,261 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PRU_IEP_H_
+#define _PRU_IEP_H_
+
+/* PRU IEP register set */
+typedef struct {
+
+ /* PRU_IEP_TMR_GLB_CFG register bit field */
+ union {
+ volatile uint32_t TMR_GLB_CFG;
+
+ volatile struct {
+ unsigned CNT_EN : 1; // 0
+ unsigned rsvd1 : 3; // 3:1
+ unsigned DEFAULT_INC : 4; // 7:4
+ unsigned CMP_INC : 12; // 19:8
+ unsigned rsvd12 : 12; // 31:20
+ } TMR_GLB_CFG_bit;
+ }; // 0x0
+
+
+ /* PRU_IEP_TMR_GLB_STS register bit field */
+ union {
+ volatile uint32_t TMR_GLB_STS;
+
+ volatile struct {
+ unsigned CNT_OVF : 1; // 0
+ unsigned rsvd1 : 31; // 31:1
+ } TMR_GLB_STS_bit;
+ }; // 0x4
+
+
+ /* PRU_IEP_TMR_COMPEN register bit field */
+ union {
+ volatile uint32_t TMR_COMPEN;
+
+ volatile struct {
+ unsigned COMPEN_CNT : 24; // 23:0
+ unsigned rsvd24 : 8; // 31:24
+ } TMR_COMPEN_bit;
+ }; // 0x8
+
+
+ /* PRU_IEP_TMR_CNT register bit field */
+ union {
+ volatile uint32_t TMR_CNT;
+
+ volatile struct {
+ unsigned COUNT : 32; // 31:0
+ } TMR_CNT_bit;
+ }; // 0xC
+
+
+ uint32_t rsvd10[12]; // 0x10 - 0x3C
+
+
+ /* PRU_IEP_TMR_CMP_CFG register bit field */
+ union {
+ volatile uint32_t TMR_CMP_CFG;
+
+ volatile struct {
+ unsigned CMP0_RST_CNT_EN : 1; // 0
+ unsigned CMP_EN : 8; // 8:1
+ unsigned rsvd9 : 23; // 31:9
+ } TMR_CMP_CFG_bit;
+ }; // 0x40
+
+
+ /* PRU_IEP_TMR_CMP_STS register bit field */
+ union {
+ volatile uint32_t TMR_CMP_STS;
+
+ volatile struct {
+ unsigned CMP_HIT : 8; // 7:0
+ unsigned rsvd8 : 24; // 31:8
+ } TMR_CMP_STS_bit;
+ }; // 0x44
+
+ /* PRU_IEP_TMR_CMP0 register bit field */
+ union {
+ volatile uint32_t TMR_CMP0;
+
+ volatile struct {
+ unsigned CMP0 : 32; // 31:0
+ } TMR_CMP0_bit;
+ }; // 0x48
+
+
+ /* PRU_IEP_TMR_CMP1 register bit field */
+ union {
+ volatile uint32_t TMR_CMP1;
+
+ volatile struct {
+ unsigned CMP1 : 32; // 31:0
+ } TMR_CMP1_bit;
+ }; // 0x4C
+
+
+ /* PRU_IEP_TMR_CMP2 register bit field */
+ union {
+ volatile uint32_t TMR_CMP2;
+
+ volatile struct {
+ unsigned CMP2 : 32; // 31:0
+ } TMR_CMP2_bit;
+ }; // 0x50
+
+
+ /* PRU_IEP_TMR_CMP3 register bit field */
+ union {
+ volatile uint32_t TMR_CMP3;
+
+ volatile struct {
+ unsigned CMP3 : 32; // 31:0
+ } TMR_CMP3_bit;
+ }; // 0x54
+
+
+ /* PRU_IEP_TMR_CMP4 register bit field */
+ union {
+ volatile uint32_t TMR_CMP4;
+
+ volatile struct {
+ unsigned CMP4 : 32; // 31:0
+ } TMR_CMP4_bit;
+ }; // 0x58
+
+
+ /* PRU_IEP_TMR_CMP5 register bit field */
+ union {
+ volatile uint32_t TMR_CMP5;
+
+ volatile struct {
+ unsigned CMP5 : 32; // 31:0
+ } TMR_CMP5_bit;
+ }; // 0x5C
+
+
+ /* PRU_IEP_TMR_CMP6 register bit field */
+ union {
+ volatile uint32_t TMR_CMP6;
+
+ volatile struct {
+ unsigned CMP6 : 32; // 31:0
+ } TMR_CMP6_bit;
+ }; // 0x60
+
+
+ /* PRU_IEP_TMR_CMP7 register bit field */
+ union {
+ volatile uint32_t TMR_CMP7;
+
+ volatile struct {
+ unsigned CMP7 : 32; // 31:0
+ } TMR_CMP7_bit;
+ }; // 0x64
+
+ uint32_t rsvd68[166]; // 0x68 - 0x2FF
+
+ /* PRU_IEP_DIGIO_CTRL register bit field */
+ union {
+ volatile uint32_t DIGIO_CTRL;
+
+ volatile struct {
+ unsigned RESERVED0 : 4; // 3:0
+ unsigned IN_MODE : 1; // 4
+ unsigned RESERVED5 : 27; // 31:5
+ } DIGIO_CTRL_bit;
+ }; // 0x300
+
+ uint32_t rsvd304[1]; // 0x304
+
+ /* PRU_IEP_DIGIO_DATA_IN register bit field */
+ union {
+ volatile uint32_t DIGIO_DATA_IN;
+
+ volatile struct {
+ unsigned DATA_IN : 32; // 31:0
+ } DIGIO_DATA_IN_bit;
+ }; // 0x308
+
+ /* PRU_IEP_DIGIO_DATA_IN_RAW register bit field */
+ union {
+ volatile uint32_t DIGIO_DATA_IN_RAW;
+
+ volatile struct {
+ unsigned DATA_IN_RAW : 32; // 31:0
+ } DIGIO_DATA_IN_RAW_bit;
+ }; // 0x30C
+
+ /* PRU_IEP_DIGIO_DATA_OUT register bit field */
+ union {
+ volatile uint32_t DIGIO_DATA_OUT;
+
+ volatile struct {
+ unsigned DATA_OUT : 32; // 31:0
+ } DIGIO_DATA_OUT_bit;
+ }; // 0x310
+
+ /* PRU_IEP_DIGIO_DATA_OUT_EN register bit field */
+ union {
+ volatile uint32_t DIGIO_DATA_OUT_EN;
+
+ volatile struct {
+ unsigned DATA_OUT_EN : 32; // 31:0
+ } DIGIO_DATA_OUT_EN_bit;
+ }; // 0x314
+
+ /* PRU_IEP_DIGIO_EXP register bit field */
+ union {
+ volatile uint32_t DIGIO_EXP;
+
+ volatile struct {
+ unsigned SW_DATA_OUT_UPDATE : 1; // 0
+ unsigned OUTVALID_OVR_EN : 1; // 1
+ unsigned RESERVED2 : 30; // 31:2
+ } DIGIO_EXP_bit;
+ }; // 0x318
+
+} pruIep;
+
+#ifdef __GNUC__
+static volatile pruIep *__CT_IEP = (void *)0x0002e000;
+#define CT_IEP (*__CT_IEP)
+#else
+volatile __far pruIep CT_IEP __attribute__((cregister("PRU_IEP", far), peripheral));
+#endif
+
+#endif /* _PRU_IEP_H_ */
diff --git a/lib/pru_rpmsg/include/am335x/pru_intc.h b/lib/pru_rpmsg/include/am335x/pru_intc.h
new file mode 100644
index 00000000..1291940d
--- /dev/null
+++ b/lib/pru_rpmsg/include/am335x/pru_intc.h
@@ -0,0 +1,912 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PRU_INTC_H_
+#define _PRU_INTC_H_
+
+/* PRU INTC register set */
+typedef struct {
+
+ /* PRU_INTC_REVID register bit field */
+ union {
+ volatile uint32_t REVID;
+
+ volatile struct {
+ unsigned REV_MINOR : 6; // 5:0
+ unsigned REV_CUSTOM : 2; // 7:6
+ unsigned REV_MAJOR : 3; // 10:8
+ unsigned REV_RTL : 5; // 15:11
+ unsigned REV_MODULE : 12; // 27:16
+ unsigned rsvd28 : 2; // 29:28
+ unsigned REV_SCHEME : 2; // 31:30
+ } REVID_bit;
+ }; // 0x0
+
+
+ /* PRU_INTC_CR register bit field */
+ union {
+ volatile uint32_t CR;
+
+ volatile struct {
+ unsigned rsvd0 : 2; // 1:0
+ unsigned NEST_MODE : 2; // 3:2
+ unsigned rsvd4 : 28; // 31:4
+ } CR_bit;
+ }; // 0x4
+
+
+ uint32_t rsvd8[2]; // 0x8 - 0xC
+
+
+ /* PRU_INTC_GER register bit field */
+ union {
+ volatile uint32_t GER;
+
+ volatile struct {
+ unsigned EN_HINT_ANY : 1; // 0
+ unsigned rsvd1 : 31; // 31:1
+ } GER_bit;
+ }; // 0x10
+
+
+ uint32_t rsvd14[2]; // 0x14 - 0x18
+
+
+ /* PRU_INTC_GNLR register bit field */
+ union {
+ volatile uint32_t GNLR;
+
+ volatile struct {
+ unsigned GLB_NEST_LEVEL : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } GNLR_bit;
+ }; // 0x1C
+
+
+ /* PRU_INTC_SISR register bit field */
+ union {
+ volatile uint32_t SISR;
+
+ volatile struct {
+ unsigned STS_SET_IDX : 10; // 9:0
+ unsigned rsvd10 : 22; // 31:10
+ } SISR_bit;
+ }; // 0x20
+
+
+ /* PRU_INTC_SICR register bit field */
+ union {
+ volatile uint32_t SICR;
+
+ volatile struct {
+ unsigned STS_CLR_IDX : 10; // 9:0
+ unsigned rsvd10 : 22; // 31:10
+ } SICR_bit;
+ }; // 0x24
+
+
+ /* PRU_INTC_EISR register bit field */
+ union {
+ volatile uint32_t EISR;
+
+ volatile struct {
+ unsigned EN_SET_IDX : 10; // 9:0
+ unsigned rsvd10 : 22; // 31:10
+ } EISR_bit;
+ }; // 0x28
+
+
+ /* PRU_INTC_EICR register bit field */
+ union {
+ volatile uint32_t EICR;
+
+ volatile struct {
+ unsigned EN_CLR_IDX : 10; // 9:0
+ unsigned rsvd10 : 22; // 31:10
+ } EICR_bit;
+ }; // 0x2C
+
+
+ uint32_t rsvd30; // 0x30
+
+
+ /* PRU_INTC_HIEISR register bit field */
+ union {
+ volatile uint32_t HIEISR;
+
+ volatile struct {
+ unsigned HINT_EN_SET_IDX : 4; // 3:0
+ unsigned rsvd4 : 28; // 31:4
+ } HIEISR_bit;
+ }; // 0x34
+
+
+ /* PRU_INTC_HIDISR register bit field */
+ union {
+ volatile uint32_t HIDISR;
+
+ volatile struct {
+ unsigned HINT_EN_CLR_IDX : 4; // 3:0
+ unsigned rsvd4 : 28; // 31:4
+ } HIDISR_bit;
+ }; // 0x38
+
+
+ uint32_t rsvd3C[17]; // 0x3C - 0x7C
+
+
+ /* PRU_INTC_GPIR register bit field */
+ union {
+ volatile uint32_t GPIR;
+
+ volatile struct {
+ unsigned GLB_PRI_INTR : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned GLB_NONE : 1; // 31
+ } GPIR_bit;
+ }; // 0x80
+
+
+ uint32_t rsvd84[95]; // 0x84 - 0x1FC
+
+
+ /* PRU_INTC_SRSR0 register bit field */
+ union {
+ volatile uint32_t SRSR0;
+
+ volatile struct {
+ unsigned RAW_STS_31_0 : 32; // 31:0
+ } SRSR0_bit;
+ }; // 0x200
+
+
+ /* PRU_INTC_SRSR1 register bit field */
+ union {
+ volatile uint32_t SRSR1;
+
+ volatile struct {
+ unsigned RAW_STS_63_32 : 32; // 31:0
+ } SRSR1_bit;
+ }; // 0x204
+
+
+ uint32_t rsvd208[30]; // 0x208 - 0x27C
+
+
+ /* PRU_INTC_SECR0 register bit field */
+ union {
+ volatile uint32_t SECR0;
+
+ volatile struct {
+ unsigned ENA_STS_31_0 : 32; // 31:0
+ } SECR0_bit;
+ }; // 0x280
+
+
+ /* PRU_INTC_SECR1 register bit field */
+ union {
+ volatile uint32_t SECR1;
+
+ volatile struct {
+ unsigned ENA_STS_63_32 : 32; // 31:0
+ } SECR1_bit;
+ }; // 0x284
+
+
+ uint32_t rsvd288[30]; // 0x288 - 0x2FC
+
+
+ /* PRU_INTC_ESR0 register bit field */
+ union {
+ volatile uint32_t ESR0;
+
+ volatile struct {
+ unsigned EN_SET_31_0 : 32; // 31:0
+ } ESR0_bit;
+ }; // 0x300
+
+
+ /* PRU_INTC_ESR1 register bit field */
+ union {
+ volatile uint32_t ESR1;
+
+ volatile struct {
+ unsigned EN_SET_63_32 : 32; // 31:0
+ } ESR1_bit;
+ }; // 0x304
+
+
+ uint32_t rsvd308[30]; // 0x308 - 0x37C
+
+
+ /* PRU_INTC_ECR0 register bit field */
+ union {
+ volatile uint32_t ECR0;
+
+ volatile struct {
+ unsigned EN_CLR_31_0 : 32; // 31:0
+ } ECR0_bit;
+ }; // 0x380
+
+
+ /* PRU_INTC_ECR1 register bit field */
+ union {
+ volatile uint32_t ECR1;
+
+ volatile struct {
+ unsigned EN_CLR_63_32 : 32; // 31:0
+ } ECR1_bit;
+ }; // 0x384
+
+
+ uint32_t rsvd388[30]; // 0x388 - 0x3FC
+
+
+ /* PRU_INTC_CMR0 register bit field */
+ union {
+ volatile uint32_t CMR0;
+
+ volatile struct {
+ unsigned CH_MAP_0 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_1 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_2 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_3 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR0_bit;
+ }; // 0x400
+
+
+ /* PRU_INTC_CMR1 register bit field */
+ union {
+ volatile uint32_t CMR1;
+
+ volatile struct {
+ unsigned CH_MAP_4 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_5 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_6 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_7 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR1_bit;
+ }; // 0x404
+
+
+ /* PRU_INTC_CMR2 register bit field */
+ union {
+ volatile uint32_t CMR2;
+
+ volatile struct {
+ unsigned CH_MAP_8 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_9 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_10 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_11 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR2_bit;
+ }; // 0x408
+
+
+ /* PRU_INTC_CMR3 register bit field */
+ union {
+ volatile uint32_t CMR3;
+
+ volatile struct {
+ unsigned CH_MAP_12 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_13 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_14 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_15 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR3_bit;
+ }; // 0x40C
+
+
+ /* PRU_INTC_CMR4 register bit field */
+ union {
+ volatile uint32_t CMR4;
+
+ volatile struct {
+ unsigned CH_MAP_16 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_17 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_18 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_19 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR4_bit;
+ }; // 0x410
+
+
+ /* PRU_INTC_CMR5 register bit field */
+ union {
+ volatile uint32_t CMR5;
+
+ volatile struct {
+ unsigned CH_MAP_20 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_21 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_22 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_23 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR5_bit;
+ }; // 0x414
+
+
+ /* PRU_INTC_CMR6 register bit field */
+ union {
+ volatile uint32_t CMR6;
+
+ volatile struct {
+ unsigned CH_MAP_24 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_25 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_26 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_27 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR6_bit;
+ }; // 0x418
+
+
+ /* PRU_INTC_CMR7 register bit field */
+ union {
+ volatile uint32_t CMR7;
+
+ volatile struct {
+ unsigned CH_MAP_28 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_29 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_30 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_31 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR7_bit;
+ }; // 0x41C
+
+
+ /* PRU_INTC_CMR8 register bit field */
+ union {
+ volatile uint32_t CMR8;
+
+ volatile struct {
+ unsigned CH_MAP_32 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_33 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_34 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_35 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR8_bit;
+ }; // 0x420
+
+
+ /* PRU_INTC_CMR9 register bit field */
+ union {
+ volatile uint32_t CMR9;
+
+ volatile struct {
+ unsigned CH_MAP_36 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_37 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_38 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_39 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR9_bit;
+ }; // 0x424
+
+
+ /* PRU_INTC_CMR10 register bit field */
+ union {
+ volatile uint32_t CMR10;
+
+ volatile struct {
+ unsigned CH_MAP_40 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_41 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_42 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_43 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR10_bit;
+ }; // 0x428
+
+
+ /* PRU_INTC_CMR11 register bit field */
+ union {
+ volatile uint32_t CMR11;
+
+ volatile struct {
+ unsigned CH_MAP_44 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_45 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_46 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_47 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR11_bit;
+ }; // 0x42C
+
+
+ /* PRU_INTC_CMR12 register bit field */
+ union {
+ volatile uint32_t CMR12;
+
+ volatile struct {
+ unsigned CH_MAP_48 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_49 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_50 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_51 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR12_bit;
+ }; // 0x430
+
+
+ /* PRU_INTC_CMR13 register bit field */
+ union {
+ volatile uint32_t CMR13;
+
+ volatile struct {
+ unsigned CH_MAP_52 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_53 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_54 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_55 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR13_bit;
+ }; // 0x434
+
+
+ /* PRU_INTC_CMR14 register bit field */
+ union {
+ volatile uint32_t CMR14;
+
+ volatile struct {
+ unsigned CH_MAP_56 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_57 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_58 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_59 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR14_bit;
+ }; // 0x438
+
+
+ /* PRU_INTC_CMR15 register bit field */
+ union {
+ volatile uint32_t CMR15;
+
+ volatile struct {
+ unsigned CH_MAP_60 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned CH_MAP_61 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned CH_MAP_62 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned CH_MAP_63 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } CMR15_bit;
+ }; // 0x43C
+
+
+ uint32_t rsvd440[240]; // 0x440 - 0x7FC
+
+
+ /* PRU_INTC_HMR0 register bit field */
+ union {
+ volatile uint32_t HMR0;
+
+ volatile struct {
+ unsigned HINT_MAP_0 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned HINT_MAP_1 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned HINT_MAP_2 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned HINT_MAP_3 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } HMR0_bit;
+ }; // 0x800
+
+
+ /* PRU_INTC_HMR1 register bit field */
+ union {
+ volatile uint32_t HMR1;
+
+ volatile struct {
+ unsigned HINT_MAP_4 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned HINT_MAP_5 : 4; // 11:8
+ unsigned rsvd12 : 4; // 15:12
+ unsigned HINT_MAP_6 : 4; // 19:16
+ unsigned rsvd20 : 4; // 23:20
+ unsigned HINT_MAP_7 : 4; // 27:24
+ unsigned rsvd28 : 4; // 31:28
+ } HMR1_bit;
+ }; // 0x804
+
+
+ /* PRU_INTC_HMR2 register bit field */
+ union {
+ volatile uint32_t HMR2;
+
+ volatile struct {
+ unsigned HINT_MAP_8 : 4; // 3:0
+ unsigned rsvd4 : 4; // 7:4
+ unsigned HINT_MAP_9 : 4; // 11:8
+ unsigned rsvd12 : 20; // 31:12
+ } HMR2_bit;
+ }; // 0x808
+
+
+ uint32_t rsvd80C[61]; // 0x80C - 0x8FC
+
+
+ /* PRU_INTC_HIPIR0 register bit field */
+ union {
+ volatile uint32_t HIPIR0;
+
+ volatile struct {
+ unsigned PRI_HINT_0 : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned NONE_HINT_0 : 1; // 31
+ } HIPIR0_bit;
+ }; // 0x900
+
+
+ /* PRU_INTC_HIPIR1 register bit field */
+ union {
+ volatile uint32_t HIPIR1;
+
+ volatile struct {
+ unsigned PRI_HINT_1 : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned NONE_HINT_1 : 1; // 31
+ } HIPIR1_bit;
+ }; // 0x904
+
+
+ /* PRU_INTC_HIPIR2 register bit field */
+ union {
+ volatile uint32_t HIPIR2;
+
+ volatile struct {
+ unsigned PRI_HINT_2 : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned NONE_HINT_2 : 1; // 31
+ } HIPIR2_bit;
+ }; // 0x908
+
+
+ /* PRU_INTC_HIPIR3 register bit field */
+ union {
+ volatile uint32_t HIPIR3;
+
+ volatile struct {
+ unsigned PRI_HINT_3 : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned NONE_HINT_3 : 1; // 31
+ } HIPIR3_bit;
+ }; // 0x90C
+
+
+ /* PRU_INTC_HIPIR4 register bit field */
+ union {
+ volatile uint32_t HIPIR4;
+
+ volatile struct {
+ unsigned PRI_HINT_4 : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned NONE_HINT_4 : 1; // 31
+ } HIPIR4_bit;
+ }; // 0x910
+
+
+ /* PRU_INTC_HIPIR5 register bit field */
+ union {
+ volatile uint32_t HIPIR5;
+
+ volatile struct {
+ unsigned PRI_HINT_5 : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned NONE_HINT_5 : 1; // 31
+ } HIPIR5_bit;
+ }; // 0x914
+
+
+ /* PRU_INTC_HIPIR6 register bit field */
+ union {
+ volatile uint32_t HIPIR6;
+
+ volatile struct {
+ unsigned PRI_HINT_6 : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned NONE_HINT_6 : 1; // 31
+ } HIPIR6_bit;
+ }; // 0x918
+
+
+ /* PRU_INTC_HIPIR7 register bit field */
+ union {
+ volatile uint32_t HIPIR7;
+
+ volatile struct {
+ unsigned PRI_HINT_7 : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned NONE_HINT_7 : 1; // 31
+ } HIPIR7_bit;
+ }; // 0x91C
+
+
+ /* PRU_INTC_HIPIR8 register bit field */
+ union {
+ volatile uint32_t HIPIR8;
+
+ volatile struct {
+ unsigned PRI_HINT_8 : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned NONE_HINT_8 : 1; // 31
+ } HIPIR8_bit;
+ }; // 0x920
+
+
+ /* PRU_INTC_HIPIR9 register bit field */
+ union {
+ volatile uint32_t HIPIR9;
+
+ volatile struct {
+ unsigned PRI_HINT_9 : 10; // 9:0
+ unsigned rsvd10 : 21; // 30:10
+ unsigned NONE_HINT_9 : 1; // 31
+ } HIPIR9_bit;
+ }; // 0x924
+
+
+ uint32_t rsvd928[246]; // 0x928 - 0xCFC
+
+
+ /* PRU_INTC_SIPR0 register bit field */
+ union {
+ volatile uint32_t SIPR0;
+
+ volatile struct {
+ unsigned POLARITY_31_0 : 32; // 31:0
+ } SIPR0_bit;
+ }; // 0xD00
+
+
+ /* PRU_INTC_SIPR1 register bit field */
+ union {
+ volatile uint32_t SIPR1;
+
+ volatile struct {
+ unsigned POLARITY_63_32 : 32; // 31:0
+ } SIPR1_bit;
+ }; // 0xD04
+
+
+ uint32_t rsvdD08[30]; // 0xD08 - 0xD7C
+
+
+ /* PRU_INTC_SITR0 register bit field */
+ union {
+ volatile uint32_t SITR0;
+
+ volatile struct {
+ unsigned TYPE_31_0 : 32; // 31:0
+ } SITR0_bit;
+ }; // 0xD80
+
+
+ /* PRU_INTC_SITR1 register bit field */
+ union {
+ volatile uint32_t SITR1;
+
+ volatile struct {
+ unsigned TYPE_63_32 : 32; // 31:0
+ } SITR1_bit;
+ }; // 0xD84
+
+
+ uint32_t rsvdD84[222]; // 0xD88 - 0x10FC
+
+
+ /* PRU_INTC_HINLR0 register bit field */
+ union {
+ volatile uint32_t HINLR0;
+
+ volatile struct {
+ unsigned NEST_HINT_0 : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } HINLR0_bit;
+ }; // 0x1100
+
+
+ /* PRU_INTC_HINLR1 register bit field */
+ union {
+ volatile uint32_t HINLR1;
+
+ volatile struct {
+ unsigned NEST_HINT_1 : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } HINLR1_bit;
+ }; // 0x1104
+
+
+ /* PRU_INTC_HINLR2 register bit field */
+ union {
+ volatile uint32_t HINLR2;
+
+ volatile struct {
+ unsigned NEST_HINT_2 : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } HINLR2_bit;
+ }; // 0x1108
+
+
+ /* PRU_INTC_HINLR3 register bit field */
+ union {
+ volatile uint32_t HINLR3;
+
+ volatile struct {
+ unsigned NEST_HINT_3 : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } HINLR3_bit;
+ }; // 0x110C
+
+
+ /* PRU_INTC_HINLR4 register bit field */
+ union {
+ volatile uint32_t HINLR4;
+
+ volatile struct {
+ unsigned NEST_HINT_4 : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } HINLR4_bit;
+ }; // 0x1110
+
+
+ /* PRU_INTC_HINLR5 register bit field */
+ union {
+ volatile uint32_t HINLR5;
+
+ volatile struct {
+ unsigned NEST_HINT_5 : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } HINLR5_bit;
+ }; // 0x1114
+
+
+ /* PRU_INTC_HINLR6 register bit field */
+ union {
+ volatile uint32_t HINLR6;
+
+ volatile struct {
+ unsigned NEST_HINT_6 : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } HINLR6_bit;
+ }; // 0x1118
+
+
+ /* PRU_INTC_HINLR7 register bit field */
+ union {
+ volatile uint32_t HINLR7;
+
+ volatile struct {
+ unsigned NEST_HINT_7 : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } HINLR7_bit;
+ }; // 0x111C
+
+
+ /* PRU_INTC_HINLR8 register bit field */
+ union {
+ volatile uint32_t HINLR8;
+
+ volatile struct {
+ unsigned NEST_HINT_8 : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } HINLR8_bit;
+ }; // 0x1120
+
+
+ /* PRU_INTC_HINLR9 register bit field */
+ union {
+ volatile uint32_t HINLR9;
+
+ volatile struct {
+ unsigned NEST_HINT_9 : 9; // 8:0
+ unsigned rsvd9 : 22; // 30:9
+ unsigned AUTO_OVERRIDE : 1; // 31
+ } HINLR9_bit;
+ }; // 0x1124
+
+
+ uint32_t rsvd1128[246]; // 0x1128 - 0x14FC
+
+
+ /* PRU_INTC_HIER register bit field */
+ union {
+ volatile uint32_t HIER;
+
+ volatile struct {
+ unsigned EN_HINT : 10; // 9:0
+ unsigned rsvd9 : 22; // 31:10
+ } HIER_bit;
+ }; // 0x1500
+
+} pruIntc;
+
+#ifdef __GNUC__
+static volatile pruIntc *__CT_INTC = (void *)0x00020000;
+#define CT_INTC (*__CT_INTC)
+#else
+volatile __far pruIntc CT_INTC __attribute__((cregister("PRU_INTC", far), peripheral));
+#endif
+
+#endif /* _PRU_INTC_H_ */
diff --git a/lib/pru_rpmsg/include/am335x/pru_uart.h b/lib/pru_rpmsg/include/am335x/pru_uart.h
new file mode 100644
index 00000000..999f81ab
--- /dev/null
+++ b/lib/pru_rpmsg/include/am335x/pru_uart.h
@@ -0,0 +1,285 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PRU_UART_H_
+#define _PRU_UART_H_
+
+/* UART Register set */
+typedef struct {
+
+ /*
+ * RBR and THR register pair
+ * This is a unique register pair in that RBR and THR
+ * share the same address. RBR is read-only while THR is
+ * write-only.
+ *
+ * Additionally, RBR and THR share an address with DLL. To
+ * read/write RBR/THR write 0 to the DLAB bit in the LCR
+ * register. To modify DLL write a 1.
+ *
+ * DLL also has a dedicated
+ * address which does not require toggling the DLAB bit.
+ */
+ union {
+ /* PRU_UART_RBR register bit field */
+ union {
+ volatile uint32_t RBR;
+
+ volatile struct {
+ unsigned DATA : 8; // 7:0
+ unsigned rsvd8 : 24; // 31:8
+ } RBR_bit;
+ };
+
+ /* PRU_UART_THR register bit field */
+ union {
+ volatile uint32_t THR;
+
+ volatile struct {
+ unsigned DATA : 8; // 7:0
+ unsigned rsvd8 : 24; // 31:8
+ } THR_bit;
+ };
+ }; // 0x0
+
+
+ /* PRU_UART_IER register bit field */
+ /*
+ * IER shares an address with DLH. To modify IER write 0
+ * to the DLAB bit in the LCR register. To modify DLH write a 1.
+ *
+ * DLH also has a dedicated address which does not require
+ * toggling the DLAB bit.
+ */
+ union {
+ volatile uint32_t IER;
+
+ volatile struct {
+ unsigned ERBI : 1; // 0
+ unsigned ETBEI : 1; // 1
+ unsigned ELSI : 1; // 2
+ unsigned EDSSI : 1; // 3
+ unsigned rsvd4 : 28; // 31:4
+ } IER_bit;
+ }; // 0x4
+
+
+ /*
+ * IIR and FCR register pair
+ * This is a unique register pair in that IIR and FCR
+ * share the same address. IIR is read-only while FCR is
+ * write-only.
+ */
+ union {
+ /* PRU_UART_IIR register bit field */
+ union {
+ volatile uint32_t IIR;
+
+ volatile struct {
+ unsigned IPEND : 1; // 0
+ unsigned INTID : 3; // 3:1
+ unsigned rsvd4 : 2; // 5:4
+ unsigned FIFOEN : 2; // 7:6
+ unsigned rsvd8 : 24; // 31:8
+ } IIR_bit;
+ };
+
+ /* PRU_UART_FCR register bit field */
+ union {
+ volatile uint32_t FCR;
+
+ volatile struct {
+ unsigned FIFOEN : 1; // 0
+ unsigned RXCLR : 1; // 1
+ unsigned TXCLR : 1; // 2
+ unsigned DMAMODE1 : 1; // 3
+ unsigned rsvd4 : 2; // 5:4
+ unsigned RXFIFTL : 2; // 7:6
+ unsigned rsvd8 : 24; // 31:8
+ } FCR_bit;
+ };
+ }; // 0x8
+
+
+ /* PRU_UART_LCR register bit field */
+ union {
+ volatile uint32_t LCR;
+
+ volatile struct {
+ unsigned WLS : 2; // 1:0
+ unsigned STB : 1; // 2
+ unsigned PEN : 1; // 3
+ unsigned EPS : 1; // 4
+ unsigned SP : 1; // 5
+ unsigned BC : 1; // 6
+ unsigned DLAB : 1; // 7
+ unsigned rsvd8 : 24; // 31:8
+ } LCR_bit;
+ }; // 0xC
+
+
+ /* PRU_UART_MCR register bit field */
+ union {
+ volatile uint32_t MCR;
+
+ volatile struct {
+ unsigned rsvd0 : 1; // 0
+ unsigned RTS : 1; // 1
+ unsigned OUT1 : 1; // 2
+ unsigned OUT2 : 1; // 3
+ unsigned LOOP : 1; // 4
+ unsigned AFE : 1; // 5
+ unsigned rsvd8 : 26; // 31:6
+ } MCR_bit;
+ }; // 0x10
+
+
+ /* PRU_UART_LSR register bit field */
+ union {
+ volatile uint32_t LSR;
+
+ volatile struct {
+ unsigned DR : 1; // 0
+ unsigned OE : 1; // 1
+ unsigned PE : 1; // 2
+ unsigned FE : 1; // 3
+ unsigned BI : 1; // 4
+ unsigned THRE : 1; // 5
+ unsigned TEMT : 1; // 6
+ unsigned RXFIFOE : 1; // 7
+ unsigned rsvd8 : 24; // 31:8
+ } LSR_bit;
+ }; // 0x14
+
+
+ /* PRU_UART_MSR register bit field */
+ union {
+ volatile uint32_t MSR;
+
+ volatile struct {
+ unsigned DCTS : 1; // 0
+ unsigned DDSR : 1; // 1
+ unsigned TERI : 1; // 2
+ unsigned DCD : 1; // 3
+ unsigned CTS : 1; // 4
+ unsigned DSR : 1; // 5
+ unsigned RI : 1; // 6
+ unsigned CD : 1; // 7
+ unsigned rsvd8 : 24; // 31:8
+ } MSR_bit;
+ }; // 0x18
+
+
+ /* PRU_UART_SCR register bit field */
+ union {
+ volatile uint32_t SCR;
+
+ volatile struct {
+ unsigned SCR : 8; // 7:0
+ unsigned rsvd8 : 24; // 31:8
+ } SCR_bit;
+ }; // 0x1C
+
+
+ /* PRU_UART_DLL register bit field */
+ union {
+ volatile uint32_t DLL;
+
+ volatile struct {
+ unsigned DLL : 8; // 7:0
+ unsigned rsvd8 : 24; // 31:8
+ } DLL_bit;
+ }; // 0x20
+
+
+ /* PRU_UART_DLH register bit field */
+ union {
+ volatile uint32_t DLH;
+
+ volatile struct {
+ unsigned DLH : 8; // 7:0
+ unsigned rsvd8 : 24; // 31:8
+ } DLH_bit;
+ }; // 0x24
+
+
+ /* PRU_UART_REVID1 register bit field */
+ union {
+ volatile uint32_t REVID1;
+
+ volatile struct {
+ unsigned REVID1 : 32; // 31:0
+ } REVID1_bit;
+ }; // 0x28
+
+
+ /* PRU_UART_REVID2 register bit field */
+ union {
+ volatile uint32_t REVID2;
+
+ volatile struct {
+ unsigned REVID2 : 8; // 7:0
+ unsigned rsvd8 : 24; // 31:8
+ } REVID2_bit;
+ }; // 0x2C
+
+
+ /* PRU_UART_PWREMU_MGMT register bit field */
+ union {
+ volatile uint32_t PWREMU_MGMT;
+
+ volatile struct {
+ unsigned FREE : 1; // 0
+ unsigned rsvd1 : 12; // 12:1
+ unsigned URRST : 1; // 13
+ unsigned UTRST : 1; // 14
+ unsigned rsvd15 : 17; // 31:15
+ } PWREMU_MGMT_bit;
+ }; // 0x30
+
+
+ /* PRU_UART_MDR register bit field */
+ union {
+ volatile uint32_t MDR;
+
+ volatile struct {
+ unsigned OSM_SEL : 1; // 0
+ unsigned rsvd1 : 31; // 31:1
+ } MDR_bit;
+ }; // 0x34
+
+} pruUart;
+
+volatile __far pruUart CT_UART __attribute__((cregister("PRU_UART", near), peripheral));
+
+#endif /* _PRU_UART_H_ */
diff --git a/lib/pru_rpmsg/include/am335x/sys_mailbox.h b/lib/pru_rpmsg/include/am335x/sys_mailbox.h
new file mode 100644
index 00000000..f2750f75
--- /dev/null
+++ b/lib/pru_rpmsg/include/am335x/sys_mailbox.h
@@ -0,0 +1,210 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SYS_MAILBOX_H_
+#define _SYS_MAILBOX_H_
+
+/* SYS_MAILBOX register set */
+typedef struct {
+
+ /* SYS_MAILBOX_REVISION register bit field */
+ union {
+ volatile uint32_t REVISION;
+
+ volatile struct {
+ unsigned MINOR : 6; //5:0
+ unsigned CUSTOM : 2; //7:6
+ unsigned MAJOR : 3; //10:8
+ unsigned RTL : 5; //15:11
+ unsigned FUNC : 12; //27:16
+ unsigned rsvd28 : 2; //29:28
+ unsigned SCHEME : 2; //31:30
+ } REVISION_bit;
+ }; // 0x0
+
+ uint32_t rsvd4[3]; // 0x4 - 0xC
+
+ /* SYS_MAILBOX_SYSCONFIG register bit field */
+ union {
+ volatile uint32_t SYSCONFIG;
+
+ volatile struct {
+ unsigned SOFTRESET : 1; //0
+ unsigned rsvd : 1; //1
+ unsigned SLIDLEMODE : 2; //3:2
+ unsigned rsvd1 : 28; //31:4
+ } SYSCONFIG_bit;
+ }; // 0x10
+
+ uint32_t rsvd14[11]; // 0x14 - 0x3C
+
+ /* SYS_MAILBOX_MESSAGE register bit fields */
+ union {
+ volatile uint32_t MESSAGE[8];
+
+ volatile struct {
+ unsigned MESSAGE : 32; //31:0
+ } MESSAGE_bit[8];
+ }; // 0x40-0x5C
+
+ uint32_t rsvd60[8]; // 0x60 - 0x7C
+
+ /* SYS_MAILBOX_FIFOSTATUS register bit fields */
+ union {
+ volatile uint32_t FIFOSTATUS[8];
+
+ volatile struct {
+ unsigned FIFOFULL : 1; //0
+ unsigned rsvd : 31; //31:1
+ } FIFOSTATUS_bit[8];
+ }; // 0x80-0x9C
+
+ uint32_t rsvdA0[8]; // 0xA0 - 0xBC
+
+ /* SYS_MAILBOX_MSGSTATUS register bit fields */
+ union {
+ volatile uint32_t MSGSTATUS[8];
+
+ volatile struct {
+ unsigned NBOFMSG : 3; //2:0
+ unsigned rsvd : 29; //31:3
+ } MSGSTATUS_bit[8];
+ }; // 0xC0-DC
+
+ uint32_t rsvdE0[8]; // 0xE0 - 0xFC
+
+ volatile struct {
+ union {
+ volatile uint32_t STATUS_RAW;
+
+ volatile struct {
+ unsigned NEWMSGSTATUSMB0 : 1; //0
+ unsigned NOTFULLSTATUSMB0 : 1; //1
+ unsigned NEWMSGSTATUSMB1 : 1; //2
+ unsigned NOTFULLSTATUSMB1 : 1; //3
+ unsigned NEWMSGSTATUSMB2 : 1; //4
+ unsigned NOTFULLSTATUSMB2 : 1; //5
+ unsigned NEWMSGSTATUSMB3 : 1; //6
+ unsigned NOTFULLSTATUSMB3 : 1; //7
+ unsigned NEWMSGSTATUSMB4 : 1; //8
+ unsigned NOTFULLSTATUSMB4 : 1; //9
+ unsigned NEWMSGSTATUSMB5 : 1; //10
+ unsigned NOTFULLSTATUSMB5 : 1; //11
+ unsigned NEWMSGSTATUSMB6 : 1; //12
+ unsigned NOTFULLSTATUSMB6 : 1; //13
+ unsigned NEWMSGSTATUSMB7 : 1; //14
+ unsigned NOTFULLSTATUSMB7 : 1; //15
+ unsigned rsvd : 16; //31:16
+ } STATUS_RAW_bit;
+ };
+ union {
+ volatile uint32_t STATUS_CLR;
+
+ volatile struct {
+ unsigned NEWMSGSTATUSMB0 : 1; //0
+ unsigned NOTFULLSTATUSMB0 : 1; //1
+ unsigned NEWMSGSTATUSMB1 : 1; //2
+ unsigned NOTFULLSTATUSMB1 : 1; //3
+ unsigned NEWMSGSTATUSMB2 : 1; //4
+ unsigned NOTFULLSTATUSMB2 : 1; //5
+ unsigned NEWMSGSTATUSMB3 : 1; //6
+ unsigned NOTFULLSTATUSMB3 : 1; //7
+ unsigned NEWMSGSTATUSMB4 : 1; //8
+ unsigned NOTFULLSTATUSMB4 : 1; //9
+ unsigned NEWMSGSTATUSMB5 : 1; //10
+ unsigned NOTFULLSTATUSMB5 : 1; //11
+ unsigned NEWMSGSTATUSMB6 : 1; //12
+ unsigned NOTFULLSTATUSMB6 : 1; //13
+ unsigned NEWMSGSTATUSMB7 : 1; //14
+ unsigned NOTFULLSTATUSMB7 : 1; //15
+ unsigned rsvd : 16; //31:16
+ } STATUS_CLR_bit;
+ };
+ union {
+ volatile uint32_t ENABLE_SET;
+
+ volatile struct {
+ unsigned NEWMSGSTATUSMB0 : 1; //0
+ unsigned NOTFULLSTATUSMB0 : 1; //1
+ unsigned NEWMSGSTATUSMB1 : 1; //2
+ unsigned NOTFULLSTATUSMB1 : 1; //3
+ unsigned NEWMSGSTATUSMB2 : 1; //4
+ unsigned NOTFULLSTATUSMB2 : 1; //5
+ unsigned NEWMSGSTATUSMB3 : 1; //6
+ unsigned NOTFULLSTATUSMB3 : 1; //7
+ unsigned NEWMSGSTATUSMB4 : 1; //8
+ unsigned NOTFULLSTATUSMB4 : 1; //9
+ unsigned NEWMSGSTATUSMB5 : 1; //10
+ unsigned NOTFULLSTATUSMB5 : 1; //11
+ unsigned NEWMSGSTATUSMB6 : 1; //12
+ unsigned NOTFULLSTATUSMB6 : 1; //13
+ unsigned NEWMSGSTATUSMB7 : 1; //14
+ unsigned NOTFULLSTATUSMB7 : 1; //15
+ unsigned rsvd : 16; //31:16
+ } ENABLE_SET_bit;
+ };
+ union {
+ volatile uint32_t ENABLE_CLR;
+
+ volatile struct {
+ unsigned NEWMSGSTATUSMB0 : 1; //0
+ unsigned NOTFULLSTATUSMB0 : 1; //1
+ unsigned NEWMSGSTATUSMB1 : 1; //2
+ unsigned NOTFULLSTATUSMB1 : 1; //3
+ unsigned NEWMSGSTATUSMB2 : 1; //4
+ unsigned NOTFULLSTATUSMB2 : 1; //5
+ unsigned NEWMSGSTATUSMB3 : 1; //6
+ unsigned NOTFULLSTATUSMB3 : 1; //7
+ unsigned NEWMSGSTATUSMB4 : 1; //8
+ unsigned NOTFULLSTATUSMB4 : 1; //9
+ unsigned NEWMSGSTATUSMB5 : 1; //10
+ unsigned NOTFULLSTATUSMB5 : 1; //11
+ unsigned NEWMSGSTATUSMB6 : 1; //12
+ unsigned NOTFULLSTATUSMB6 : 1; //13
+ unsigned NEWMSGSTATUSMB7 : 1; //14
+ unsigned NOTFULLSTATUSMB7 : 1; //15
+ unsigned rsvd : 16; //31:16
+ } ENABLE_CLR_bit;
+ };
+ } IRQ[4];
+
+} sysMailbox;
+
+#ifdef __GNUC__
+static volatile sysMailbox *__CT_MBX = (void *)0x480C8000;
+#define CT_MBX (*__CT_MBX)
+#else
+volatile __far sysMailbox CT_MBX __attribute__((cregister("MBX0", far), peripheral));
+#endif
+
+#endif /* _SYS_MAILBOX_H_ */
diff --git a/lib/pru_rpmsg/include/am335x/sys_pwmss.h b/lib/pru_rpmsg/include/am335x/sys_pwmss.h
new file mode 100644
index 00000000..ee9036c0
--- /dev/null
+++ b/lib/pru_rpmsg/include/am335x/sys_pwmss.h
@@ -0,0 +1,446 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SYS_PWMSS_H_
+#define _SYS_PWMSS_H_
+
+/* SYS_PWMSS register set */
+typedef struct {
+
+ /***************************/
+ /* PWM Subsystem Registers */
+ /***************************/
+ /* SYS_PWMSS_IDVER register bit field */
+ union {
+ volatile uint32_t IDVER;
+
+ volatile struct {
+ unsigned Y_MINOR : 6; //5:0
+ unsigned CUSTOM : 2; //7:6
+ unsigned X_MAJOR : 3; //10:8
+ unsigned R_RTL : 5; //15:11
+ unsigned FUNC : 12; //27:16
+ unsigned rsvd28 : 2; //29:28
+ unsigned SCHEME : 2; //31:30
+ } IDVER_bit;
+ }; // 0x0
+
+ /* SYS_PWMSS_SYSCONFIG register bit field */
+ union {
+ volatile uint32_t SYSCONFIG;
+
+ volatile struct {
+ unsigned SOFTRESET : 1; //0
+ unsigned FREEEMU : 1; //1
+ unsigned IDLEMODE : 2; //3:2
+ unsigned STANDBYMODE : 2; //5:4
+ unsigned rsvd6 : 26; //31:6
+ } SYSCONFIG_bit;
+ }; // 0x4
+
+ /* SYS_PWMSS_CLKCONFIG register bit field */
+ union {
+ volatile uint32_t CLKCONFIG;
+
+ volatile struct {
+ unsigned ECAPCLK_EN : 1; //0
+ unsigned ECAPCLKSTOP_REQ : 1; //1
+ unsigned rsvd2 : 2; //3:2
+ unsigned EQEPCLK_EN : 1; //4
+ unsigned EQEPCLKSTOP_REQ : 1; //5
+ unsigned rsvd6 : 2; //7:6
+ unsigned EPWMCLK_EN : 1; //8
+ unsigned EPWMCLKSTOP_REQ : 1; //9
+ unsigned rsvd10 : 22; //31:10
+ } CLKCONFIG_bit;
+ }; // 0x8
+
+ /* SYS_PWMSS_CLKSTATUS register bit field */
+ union {
+ volatile uint32_t CLKSTATUS;
+
+ volatile struct {
+ unsigned ECAPCLK_EN_ACK : 1; //0
+ unsigned ECAPCLKSTOP_ACK : 1; //1
+ unsigned rsvd2 : 2; //3:2
+ unsigned EQEPCLK_EN_ACK : 1; //4
+ unsigned EQEPCLKSTOP_ACK : 1; //5
+ unsigned rsvd6 : 2; //7:6
+ unsigned EPWMCLK_EN_ACK : 1; //8
+ unsigned EPWMCLKSTOP_ACK : 1; //9
+ unsigned rsvd10 : 22; //31:10
+ } CLKSTATUS_bit;
+ }; // 0xC
+
+ uint32_t rsvd10[60]; // 0x10 - 0xFC
+
+ /*************************/
+ /* eCAP Module Registers */
+ /*************************/
+ /* SYS_PWMSS_ECAP_TSCTR register bit field */
+ union {
+ volatile uint32_t ECAP_TSCTR;
+
+ volatile struct {
+ unsigned TSCTR : 32; //31:0
+ } ECAP_TSCTR_bit;
+ }; // 0x100
+
+ /* SYS_PWMSS_ECAP_CTRPHS register bit field */
+ union {
+ volatile uint32_t ECAP_CTRPHS;
+
+ volatile struct {
+ unsigned CTRPHS : 32; //31:0
+ } ECAP_CTRPHS_bit;
+ }; // 0x104
+
+ /* SYS_PWMSS_ECAP_CAP1 register bit field */
+ union {
+ volatile uint32_t ECAP_CAP1;
+
+ volatile struct {
+ unsigned CAP1 : 32; //31:0
+ } ECAP_CAP1_bit;
+ }; // 0x108
+
+ /* SYS_PWMSS_ECAP_CAP2 register bit field */
+ union {
+ volatile uint32_t ECAP_CAP2;
+
+ volatile struct {
+ unsigned CAP2 : 32; //31:0
+ } ECAP_CAP2_bit;
+ }; // 0x10C
+
+ /* SYS_PWMSS_ECAP_CAP3 register bit field */
+ union {
+ volatile uint32_t ECAP_CAP3;
+
+ volatile struct {
+ unsigned CAP3 : 32; //31:0
+ } ECAP_CAP3_bit;
+ }; // 0x110
+
+ /* SYS_PWMSS_ECAP_CAP4 register bit field */
+ union {
+ volatile uint32_t ECAP_CAP4;
+
+ volatile struct {
+ unsigned CAP4 : 32; //31:0
+ } ECAP_CAP4_bit;
+ }; // 0x114
+
+ uint32_t rsvd118[4]; // 0x118 - 0x124
+
+ /* SYS_PWMSS_ECAP_ECCTL1 register bit field */
+ volatile uint16_t ECAP_ECCTL1; // 0x128
+
+ /* SYS_PWMSS_ECAP_ECCTL2 register bit field */
+ volatile uint16_t ECAP_ECCTL2; // 0x12A
+
+ /* SYS_PWMSS_ECAP_ECEINT register bit field */
+ volatile uint16_t ECAP_ECEINT; // 0x12C
+
+ /* SYS_PWMSS_ECAP_ECFLG register bit field */
+ volatile uint16_t ECAP_ECFLG; // 0x12E
+
+ /* SYS_PWMSS_ECAP_ECCLR register bit field */
+ volatile uint16_t ECAP_ECCLR; // 0x130
+
+ /* SYS_PWMSS_ECAP_ECFRC register bit field */
+ volatile uint16_t ECAP_ECFRC; // 0x132
+
+ uint32_t rsvd134[10]; // 0x134 - 0x158
+
+ /* SYS_PWMSS_ECAP_REVID register bit field */
+ union {
+ volatile uint32_t ECAP_REVID;
+
+ volatile struct {
+ unsigned REV : 32; //31:0
+ } ECAP_REVID_bit;
+ }; // 0x15C
+
+ uint32_t rsvd160[8]; // 0x160 - 0x17C
+
+ /*************************/
+ /* eQEP Module Registers */
+ /*************************/
+ /* SYS_PWMSS_EQEP_QPOSCNT register bit field */
+ union {
+ volatile uint32_t EQEP_QPOSCNT;
+
+ volatile struct {
+ unsigned QPOSCNT : 32; //31:0
+ } EQEP_QPOSCNT_bit;
+ }; // 0x180
+
+ /* SYS_PWMSS_EQEP_QPOSINIT register bit field */
+ union {
+ volatile uint32_t EQEP_QPOSINIT;
+
+ volatile struct {
+ unsigned QPOSINIT : 32; //31:0
+ } EQEP_QPOSINIT_bit;
+ }; // 0x184
+
+ /* SYS_PWMSS_EQEP_QPOSMAX register bit field */
+ union {
+ volatile uint32_t EQEP_QPOSMAX;
+
+ volatile struct {
+ unsigned QPOSMAX : 32; //31:0
+ } EQEP_QPOSMAX_bit;
+ }; // 0x188
+
+ /* SYS_PWMSS_EQEP_QPOSCMP register bit field */
+ union {
+ volatile uint32_t EQEP_QPOSCMP;
+
+ volatile struct {
+ unsigned QPOSCMP : 32; //31:0
+ } EQEP_QPOSCMP_bit;
+ }; // 0x18C
+
+ /* SYS_PWMSS_EQEP_QPOSILAT register bit field */
+ union {
+ volatile uint32_t EQEP_QPOSILAT;
+
+ volatile struct {
+ unsigned QPOSILAT : 32; //31:0
+ } EQEP_QPOSILAT_bit;
+ }; // 0x190
+
+ /* SYS_PWMSS_EQEP_QPOSSLAT register bit field */
+ union {
+ volatile uint32_t EQEP_QPOSSLAT;
+
+ volatile struct {
+ unsigned QPOSSLAT : 32; //31:0
+ } EQEP_QPOSSLAT_bit;
+ }; // 0x194
+
+ /* SYS_PWMSS_EQEP_QPOSLAT register bit field */
+ union {
+ volatile uint32_t EQEP_QPOSLAT;
+
+ volatile struct {
+ unsigned QPOSLAT : 32; //31:0
+ } EQEP_QPOSLAT_bit;
+ }; // 0x198
+
+ /* SYS_PWMSS_EQEP_QUTMR register bit field */
+ union {
+ volatile uint32_t EQEP_QUTMR;
+
+ volatile struct {
+ unsigned QUTMR : 32; //31:0
+ } EQEP_QUTMR_bit;
+ }; // 0x19C
+
+ /* SYS_PWMSS_EQEP_QUPRD register bit field */
+ union {
+ volatile uint32_t EQEP_QUPRD;
+
+ volatile struct {
+ unsigned QUPRD : 32; //31:0
+ } EQEP_QUPRD_bit;
+ }; // 0x1A0
+
+ /* SYS_PWMSS_EQEP_QWDTMR register bit field */
+ volatile uint16_t EQEP_QWDTMR; // 0x1A4
+
+ /* SYS_PWMSS_EQEP_QWDPRD register bit field */
+ volatile uint16_t EQEP_QWDPRD; // 0x1A6
+
+ /* SYS_PWMSS_EQEP_QDECCTL register bit field */
+ volatile uint16_t EQEP_QDECCTL; // 0x1A8
+
+ /* SYS_PWMSS_EQEP_QEPCTL register bit field */
+ volatile uint16_t EQEP_QEPCTL; // 0x1AA
+
+ /* SYS_PWMSS_EQEP_QCAPCTL register bit field */
+ volatile uint16_t EQEP_QCAPCTL; // 0x1AC
+
+ /* SYS_PWMSS_EQEP_QPOSCTL register bit field */
+ volatile uint16_t EQEP_QPOSCTL; // 0x1AE
+
+ /* SYS_PWMSS_EQEP_QEINT register bit field */
+ volatile uint16_t EQEP_QEINT; // 0x1B0
+
+ /* SYS_PWMSS_EQEP_QFLG register bit field */
+ volatile uint16_t EQEP_QFLG; // 0x1B2
+
+ /* SYS_PWMSS_EQEP_QCLR register bit field */
+ volatile uint16_t EQEP_QCLR; // 0x1B4
+
+ /* SYS_PWMSS_EQEP_QFRC register bit field */
+ volatile uint16_t EQEP_QFRC; // 0x1B6
+
+ /* SYS_PWMSS_EQEP_QEPSTS register bit field */
+ volatile uint16_t EQEP_QEPSTS; // 0x1B8
+
+ /* SYS_PWMSS_EQEP_QCTMR register bit field */
+ volatile uint16_t EQEP_QCTMR; // 0x1BA
+
+ /* SYS_PWMSS_EQEP_QCPRD register bit field */
+ volatile uint16_t EQEP_QCPRD; // 0x1BC
+
+ /* SYS_PWMSS_EQEP_QCTMRLAT register bit field */
+ volatile uint16_t EQEP_QCTMRLAT; // 0x1BE
+
+ /* SYS_PWMSS_EQEP_QCPRDLAT register bit field */
+ volatile uint16_t EQEP_QCPRDLAT; // 0x1C0
+
+ uint16_t rsvd1C2[1]; // 0x1C2 - 0x1C3
+ uint32_t rsvd1C4[6]; // 0x1C4 - 0x1D8
+
+ /* SYS_PWMSS_EQEP_REVID register bit field */
+ union {
+ volatile uint32_t EQEP_REVID;
+
+ volatile struct {
+ unsigned REVID : 32; //31:0
+ } EQEP_REVID_bit;
+ }; // 0x1DC
+
+ uint32_t rsvd1E0[8]; // 0x1E0 - 0x1FC
+
+ /*************************/
+ /* ePWM Module Registers */
+ /*************************/
+ /* SYS_PWMSS_EPWM_TBCTL register bit field */
+ volatile uint16_t EPWM_TBCTL; // 0x200
+
+ /* SYS_PWMSS_EPWM_TBSTS register bit field */
+ volatile uint16_t EPWM_TBSTS; // 0x202
+
+ /* SYS_PWMSS_EPWM_TBPHSHR register bit field */
+ volatile uint16_t EPWM_TBPHSHR; // 0x204
+
+ /* SYS_PWMSS_EPWM_TBPHS register bit field */
+ volatile uint16_t EPWM_TBPHS; // 0x206
+
+ /* SYS_PWMSS_EPWM_TBCNT register bit field */
+ volatile uint16_t EPWM_TBCNT; // 0x208
+
+ /* SYS_PWMSS_EPWM_TBPRD register bit field */
+ volatile uint16_t EPWM_TBPRD; // 0x20A
+
+ uint16_t rsvd20C[1]; // 0x20C - 0x20D
+
+ /* SYS_PWMSS_EPWM_CMPCTL register bit field */
+ volatile uint16_t EPWM_CMPCTL; // 0x20E
+
+ /* SYS_PWMSS_EPWM_CMPAHR register bit field */
+ volatile uint16_t EPWM_CMPAHR; // 0x210
+
+ /* SYS_PWMSS_EPWM_CMPA register bit field */
+ volatile uint16_t EPWM_CMPA; // 0x212
+
+ /* SYS_PWMSS_EPWM_CMPB register bit field */
+ volatile uint16_t EPWM_CMPB; // 0x214
+
+ /* SYS_PWMSS_EPWM_AQCTLA register bit field */
+ volatile uint16_t EPWM_AQCTLA; // 0x216
+
+ /* SYS_PWMSS_EPWM_AQCTLB register bit field */
+ volatile uint16_t EPWM_AQCTLB; // 0x218
+
+ /* SYS_PWMSS_EPWM_AQSFRC register bit field */
+ volatile uint16_t EPWM_AQSFRC; // 0x21A
+
+ /* SYS_PWMSS_EPWM_AQCSFRC register bit field */
+ volatile uint16_t EPWM_AQCSFRC; // 0x21C
+
+ /* SYS_PWMSS_EPWM_DBCTL register bit field */
+ volatile uint16_t EPWM_DBCTL; // 0x21E
+
+ /* SYS_PWMSS_EPWM_DBRED register bit field */
+ volatile uint16_t EPWM_DBRED; // 0x220
+
+ /* SYS_PWMSS_EPWM_DBFED register bit field */
+ volatile uint16_t EPWM_DBFED; // 0x222
+
+ /* SYS_PWMSS_EPWM_TZSEL register bit field */
+ volatile uint16_t EPWM_TZSEL; // 0x224
+
+ uint16_t rsvd226[1]; // 0x226 - 0x227
+
+ /* SYS_PWMSS_EPWM_TZCTL register bit field */
+ volatile uint16_t EPWM_TZCTL; // 0x228
+
+ /* SYS_PWMSS_EPWM_TZEINT register bit field */
+ volatile uint16_t EPWM_TZEINT; // 0x22A
+
+ /* SYS_PWMSS_EPWM_TZFLG register bit field */
+ volatile uint16_t EPWM_TZFLG; // 0x22C
+
+ /* SYS_PWMSS_EPWM_TZCLR register bit field */
+ volatile uint16_t EPWM_TZCLR; // 0x22E
+
+ /* SYS_PWMSS_EPWM_TZFRC register bit field */
+ volatile uint16_t EPWM_TZFRC; // 0x230
+
+ /* SYS_PWMSS_EPWM_ETSEL register bit field */
+ volatile uint16_t EPWM_ETSEL; // 0x232
+
+ /* SYS_PWMSS_EPWM_ETPS register bit field */
+ volatile uint16_t EPWM_ETPS; // 0x234
+
+ /* SYS_PWMSS_EPWM_ETFLG register bit field */
+ volatile uint16_t EPWM_ETFLG; // 0x236
+
+ /* SYS_PWMSS_EPWM_ETCLR register bit field */
+ volatile uint16_t EPWM_ETCLR; // 0x238
+
+ /* SYS_PWMSS_EPWM_ETFRC register bit field */
+ volatile uint16_t EPWM_ETFRC; // 0x23A
+
+ /* SYS_PWMSS_EPWM_PCCTL register bit field */
+ volatile uint16_t EPWM_PCCTL; // 0x23C
+
+ uint16_t rsvd23E[1]; // 0x23E - 0x23F
+ uint32_t rsvd240[32]; // 0x240 - 0x2BC
+
+ /* SYS_PWMSS_EPWM_HRCNGF register bit field */
+ volatile uint16_t EPWM_HRCNGF; // 0x2C0
+
+} sysPwmss;
+
+volatile __far sysPwmss PWMSS0 __attribute__((cregister("PWMSS0", far), peripheral));
+volatile __far sysPwmss PWMSS1 __attribute__((cregister("PWMSS1", far), peripheral));
+volatile __far sysPwmss PWMSS2 __attribute__((cregister("PWMSS2", far), peripheral));
+
+#endif /* _SYS_PWMSS_H_ */
diff --git a/lib/pru_rpmsg/include/pru_rpmsg.h b/lib/pru_rpmsg/include/pru_rpmsg.h
new file mode 100644
index 00000000..6f087207
--- /dev/null
+++ b/lib/pru_rpmsg/include/pru_rpmsg.h
@@ -0,0 +1,268 @@
+/*
+ * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * File : pru_rpmsg.h
+ *
+ * Summary : An RPMsg interface for the PRU to use while communicating with
+ * the ARM host.
+ *
+ * Notes :
+ * - This file creates a structure (pru_rpmsg_transport) that contains
+ * pointers to two pru_virtqueue structures. This structure is used as the
+ * underlying transport layer of all RPMsg communication. Only one
+ * pru_rpmsg_transport structure is needed because multiple logical channels
+ * can use the same underlying transport.
+ * - This pru_rpmsg interface is meant to sit on top of the pru_virtqueue
+ * interface and abstract the communication even further away from the
+ * underlying data structures. The goal is to make the communication as
+ * simple as possible at the user application level.
+ * - The logic for the PRU side is summarized below:
+ *
+ * PRU Slave:
+ * - To receive buffer from the ARM host:
+ * pru_rpmsg_receive(*transport, *src, *dst, *data, *len);
+ * - To send buffer to the host:
+ * pru_rpmsg_send(*transport, src, dst, *data, len);
+ */
+
+#ifndef _PRU_RPMSG_H_
+#define _PRU_RPMSG_H_
+
+#include <pru_virtqueue.h>
+#include <pru_virtio_ring.h>
+
+/* Return value indicating no kick was sent */
+#define PRU_RPMSG_NO_KICK 1
+/* Return value indicating success */
+#define PRU_RPMSG_SUCCESS 0
+/* Return value indicating there were no available buffers */
+#define PRU_RPMSG_NO_BUF_AVAILABLE -1
+/* Return value indicating that the buffer from the virtqueue was too small */
+#define PRU_RPMSG_BUF_TOO_SMALL -2
+/* Return value indicating that an invalid head index was given */
+#define PRU_RPMSG_INVALID_HEAD -3
+/* Return value indication that an invalid event number was given */
+#define PRU_RPMSG_INVALID_EVENT -4
+
+/* Max PRU-ICSS system event number for pru_mst_intr */
+#define MAX_VALID_EVENT 31
+/* Min PRU-ICSS system event number for pru_mst_intr */
+#define MIN_VALID_EVENT 16
+
+/* The maximum size of the channel name and description */
+#define RPMSG_NAME_SIZE 32
+/* The maximum size of the buffer (including the header) */
+#define RPMSG_BUF_SIZE 512
+
+enum pru_rpmsg_ns_flags {
+ RPMSG_NS_CREATE = 0,
+ RPMSG_NS_DESTROY = 1
+};
+
+/**
+ * Summary : pru_rpmsg_transport is a structure that groups together the
+ * two pru_virtqueues that are needed for two-way communication
+ * with the ARM. This structure provides a logical wrapper for
+ * the transport layer of the application. NOTE: Multiple
+ * (logical) channels can be implemented on top of the same
+ * transport layer.
+ *
+ * Variables : virtqueue0: contains the pru_virtqueue that is used for the
+ * PRU->ARM communication
+ * virtqueue1: contains the pru_virtqueue that is used for
+ * the ARM->PRU communication
+ */
+struct pru_rpmsg_transport {
+ struct pru_virtqueue virtqueue0;
+ struct pru_virtqueue virtqueue1;
+};
+
+/**
+ * Summary : pru_rpmsg_init initializes the underlying transport layer
+ * data structures.
+ *
+ * Parameters : transport: a pointer to the transport data structure that
+ * contains the underlying data structures to be
+ * initialized
+ * vring0: a pointer to vring0 which is provided by the ARM
+ * core through the resource table
+ * vring1: a pointer to vring1 which is provided by the ARM
+ * core through the resource table
+ * to_arm_event: the number of the PRU-ICSS system event
+ * that is specified in the device tree that
+ * is used to 'kick' the ARM core
+ * from_arm_event: the number of the PRU-ICSS system event
+ * that is specified in the device tree
+ * that is used to receive 'kicks' from the
+ * ARM core
+ *
+ * Description : pru_rpmsg_init takes the vrings and the events provided
+ * through the resource table and initializes the transport
+ * layer. Once this function call is successful RPMsg
+ * channels can be created and used.
+ *
+ * Return Value : Returns PRU_RPMSG_INVALID_EVENT if the values provided
+ * in to_arm_event or from_arm_event are outside of the
+ * allowable range of events. Returns PRU_RPMSG_SUCCESS
+ * if the initialization is successful.
+ */
+int16_t pru_rpmsg_init(
+ struct pru_rpmsg_transport *transport,
+ struct fw_rsc_vdev_vring *vring0,
+ struct fw_rsc_vdev_vring *vring1,
+ uint32_t to_arm_event,
+ uint32_t from_arm_event
+);
+
+/**
+* Summary : pru_rpmsg_receive receives a message, if available, from
+* the ARM host.
+*
+* Parameters : transport: a pointer to the transport layer from which the
+* message should be received
+* src: a pointer that is populated with the source address
+* where the message originated
+* dst: a pointer that is populated with the destination
+* address where the message was sent (can help determine
+* for which channel the message is intended on the PRU)
+* data: a pointer that is populated with a local data buffer
+* containing the message payload
+* len: a pointer that is populated with the length of the
+* message payload
+*
+* Description : pru_rpmsg_receive uses the pru_virtqueue interface to get
+* an available buffer, copy the buffer into local memory,
+* add the buffer as a used buffer to the vring, and then kick
+* the remote processor if necessary. The src, dst, data, and
+* len pointers are populated with the information about the
+* message and local buffer data if the reception is
+* successful.
+*
+* Return Value : Returns PRU_RPMSG_NO_BUF_AVAILABLE if there is currently no
+* buffer available for receive. Returns PRU_RPMSG_INVALID_HEAD
+* if the head index returned for the available buffer is
+* invalid. Returns PRU_RPMSG_SUCCESS if the message is
+* successfully received.
+*/
+int16_t pru_rpmsg_receive(
+ struct pru_rpmsg_transport *transport,
+ uint16_t *src,
+ uint16_t *dst,
+ void *data,
+ uint16_t *len
+);
+
+/**
+* Summary : pru_rpmsg_send sends a message to the ARM host using the
+* virtqueues in the pru_rpmsg_transport structure. The
+* source and destination address of the message are passed
+* in as parameters to the function. The data to be sent and
+* its length are passed in the data and len parameters.
+*
+* Parameters : transport: a pointer to the transport layer from which the
+* message should be sent
+* src: the source address where this message will originate
+* dst: the destination address where the message will be sent
+* data: a pointer to a local data buffer containing the
+* message payload
+* len: the length of the message payload
+*
+* Description : pru_rpmsg_send sends a message to the src parameter and
+* from the dst parameter. The transport structure defines the
+* underlying transport mechanism that will be used. The
+* data parameter is a pointer to a local buffer that should
+* be sent to the destination address and the len parameter is
+* the length of that buffer.
+*
+* Return Value : Returns PRU_RPMSG_NO_BUF_AVAILABLE if there is currently no
+* buffer available for send. Returns PRU_RPMSG_BUF_TOO_SMALL
+* if the buffer from the vring is too small to hold the
+* message payload being sent. Returns PRU_RPMSG_INVALID_HEAD
+* if the head index returned for the send buffer is invalid.
+* Returns PRU_RPMSG_SUCCESS if the message is successfully
+* sent.
+*/
+int16_t pru_rpmsg_send(
+ struct pru_rpmsg_transport *transport,
+ uint32_t src,
+ uint32_t dst,
+ void *data,
+ uint16_t len
+);
+
+/**
+* Summary : pru_rpmsg_channel uses an RPMsg Name Service Announcment
+* to either create or destroy an RPMsg channel depending on
+* the pru_rpmsg_ns_flags parameter that is specified.
+*
+* Parameters : flags: an enum that is used to create (RPMSG_NS_CREATE) or
+* destroy (RPMSG_NS_DESTROY) an RPMsg channel
+* transport: a pointer to the transport layer on which this
+* Name Service Announcement will be sent
+* name: the name of the channel being created or destroyed
+* ******* The name of the channel is very important as
+* ******* it is the method that Linux on the ARM uses
+* ******* to connect a PRU firmware with a corresponding
+* ******* Linux driver
+* desc: the description of the RPMsg channel being created
+* or destroyed
+* port: the local source address of the RPMsg channel. This
+* is the address where PRU messages destined for the
+* ARM host will originate
+*
+* Description : pru_rpmsg_channel sends a message letting the ARM
+* host know that a channel is to be created or destroyed. If
+* a channel is to be created then this message will notify
+* the name server on the ARM host to create a new channel. If
+* a channel is to be destroyed this will tear down this
+* logical channel of communication between the PRU and the
+* ARM host.
+*
+* Return Value : Returns PRU_RPMSG_NO_BUF_AVAILABLE if there is currently no
+* buffer available for send. Returns PRU_RPMSG_BUF_TOO_SMALL
+* if the buffer from the vring is too small to hold the
+* message payload being sent. Returns PRU_RPMSG_INVALID_HEAD
+* if the head index returned for the send buffer is invalid.
+* Returns PRU_RPMSG_SUCCESS if the message is successfully
+* sent.
+*/
+int16_t pru_rpmsg_channel(
+ enum pru_rpmsg_ns_flags flags,
+ struct pru_rpmsg_transport *transport,
+ char *name,
+ char *desc,
+ int32_t port
+);
+
+#endif /* _PRU_RPMSG_H_ */
diff --git a/lib/pru_rpmsg/include/pru_types.h b/lib/pru_rpmsg/include/pru_types.h
new file mode 100644
index 00000000..c8ab8b1b
--- /dev/null
+++ b/lib/pru_rpmsg/include/pru_types.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PRU_TYPES_H_
+#define _PRU_TYPES_H_
+
+/* Custom Resource info: Must match drivers/remoteproc/pru_rproc.h */
+#define TYPE_PRU_INTS 1
+
+/**
+ * struct ch_map - sysevts-to-channel mapping
+ *
+ * @evt: the number of the sysevt
+ * @ch: channel number assigned to a given @sysevt
+ *
+ * PRU system events are mapped to channels, and these channels are mapped to
+ * hosts. Events can be mapped to channels in a one-to-one or many-to-one ratio
+ * (multiple events per channel), and channels can be mapped to hosts in a
+ * one-to-one or many-to-one ratio (multiple events per channel).
+ *
+ * @evt is the number of the sysevt, and @ch is the number of the channel to be
+ * mapped.
+ */
+
+struct ch_map {
+ uint8_t evt;
+ uint8_t ch;
+};
+
+/**
+ * struct fw_rsc_custom_ints - custom resource to define PRU interrupts
+ * @version: revision number of the custom ints type
+ * @channel_host: assignment of PRU channels to hosts
+ * @num_evts: device address of INTC
+ * @event_channel: mapping of sysevts to channels
+ *
+ * PRU system events are mapped to channels, and these channels are mapped to
+ * hosts. Events can be mapped to channels in a one-to-one or many-to-one ratio
+ * (multiple events per channel), and channels can be mapped to hosts in a
+ * one-to-one or many-to-one ratio (multiple events per channel).
+ *
+ * @da is the device address of the interrupt controller, @channel_map is
+ * used to specify to which channel, if any, an event is mapped, and @host_map
+ * specifies to which host, if any, a channel is mapped.
+ */
+struct fw_rsc_custom_ints {
+ uint16_t version;
+ uint8_t channel_host[10];
+ uint32_t num_evts;
+ struct ch_map *event_channel;
+};
+
+#endif /* _PRU_TYPES_H_ */
diff --git a/lib/pru_rpmsg/include/pru_virtio_ids.h b/lib/pru_rpmsg/include/pru_virtio_ids.h
new file mode 100644
index 00000000..a7630d04
--- /dev/null
+++ b/lib/pru_rpmsg/include/pru_virtio_ids.h
@@ -0,0 +1,42 @@
+#ifndef _LINUX_VIRTIO_IDS_H
+#define _LINUX_VIRTIO_IDS_H
+/*
+ * Virtio IDs
+ *
+ * This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE. */
+
+#define VIRTIO_ID_NET 1 /* virtio net */
+#define VIRTIO_ID_BLOCK 2 /* virtio block */
+#define VIRTIO_ID_CONSOLE 3 /* virtio console */
+#define VIRTIO_ID_RNG 4 /* virtio rng */
+#define VIRTIO_ID_BALLOON 5 /* virtio balloon */
+#define VIRTIO_ID_RPMSG 7 /* virtio remote processor messaging */
+#define VIRTIO_ID_SCSI 8 /* virtio scsi */
+#define VIRTIO_ID_9P 9 /* 9p virtio console */
+#define VIRTIO_ID_RPROC_SERIAL 11 /* virtio remoteproc serial link */
+
+#endif /* _LINUX_VIRTIO_IDS_H */
diff --git a/lib/pru_rpmsg/include/pru_virtio_ring.h b/lib/pru_rpmsg/include/pru_virtio_ring.h
new file mode 100644
index 00000000..54817352
--- /dev/null
+++ b/lib/pru_rpmsg/include/pru_virtio_ring.h
@@ -0,0 +1,163 @@
+#ifndef _UAPI_LINUX_VIRTIO_RING_H
+#define _UAPI_LINUX_VIRTIO_RING_H
+/* An interface for efficient virtio implementation, currently for use by KVM
+ * and lguest, but hopefully others soon. Do NOT change this since it will
+ * break existing servers and clients.
+ *
+ * This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Copyright Rusty Russell IBM Corporation 2007. */
+#include <stdint.h>
+
+/* This marks a buffer as continuing via the next field. */
+#define VRING_DESC_F_NEXT 1
+/* This marks a buffer as write-only (otherwise read-only). */
+#define VRING_DESC_F_WRITE 2
+/* This means the buffer contains a list of buffer descriptors. */
+#define VRING_DESC_F_INDIRECT 4
+
+/* The Host uses this in used->flags to advise the Guest: don't kick me when
+ * you add a buffer. It's unreliable, so it's simply an optimization. Guest
+ * will still kick if it's out of buffers. */
+#define VRING_USED_F_NO_NOTIFY 1
+/* The Guest uses this in avail->flags to advise the Host: don't interrupt me
+ * when you consume a buffer. It's unreliable, so it's simply an
+ * optimization. */
+#define VRING_AVAIL_F_NO_INTERRUPT 1
+
+/* We support indirect buffer descriptors */
+#define VIRTIO_RING_F_INDIRECT_DESC 28
+
+/* The Guest publishes the used index for which it expects an interrupt
+ * at the end of the avail ring. Host should ignore the avail->flags field. */
+/* The Host publishes the avail index for which it expects a kick
+ * at the end of the used ring. Guest should ignore the used->flags field. */
+#define VIRTIO_RING_F_EVENT_IDX 29
+
+/* Virtio ring descriptors: 16 bytes. These can chain together via "next". */
+struct vring_desc {
+ /* Address (guest-physical). */
+ uint64_t addr;
+ /* Length. */
+ uint32_t len;
+ /* The flags as indicated above. */
+ uint16_t flags;
+ /* We chain unused descriptors via this, too */
+ uint16_t next;
+};
+
+struct vring_avail {
+ uint16_t flags;
+ uint16_t idx;
+ uint16_t ring[];
+};
+
+/* u32 is used here for ids for padding reasons. */
+struct vring_used_elem {
+ /* Index of start of used descriptor chain. */
+ uint32_t id;
+ /* Total length of the descriptor chain which was used (written to) */
+ uint32_t len;
+};
+
+struct vring_used {
+ uint16_t flags;
+ uint16_t idx;
+ struct vring_used_elem ring[];
+};
+
+struct vring {
+ uint32_t num;
+
+ struct vring_desc *desc;
+
+ struct vring_avail *avail;
+
+ struct vring_used *used;
+};
+
+/* The standard layout for the ring is a continuous chunk of memory which looks
+ * like this. We assume num is a power of 2.
+ *
+ * struct vring
+ * {
+ * // The actual descriptors (16 bytes each)
+ * struct vring_desc desc[num];
+ *
+ * // A ring of available descriptor heads with free-running index.
+ * __u16 avail_flags;
+ * __u16 avail_idx;
+ * __u16 available[num];
+ * __u16 used_event_idx;
+ *
+ * // Padding to the next align boundary.
+ * char pad[];
+ *
+ * // A ring of used descriptor heads with free-running index.
+ * __u16 used_flags;
+ * __u16 used_idx;
+ * struct vring_used_elem used[num];
+ * __u16 avail_event_idx;
+ * };
+ */
+/* We publish the used event index at the end of the available ring, and vice
+ * versa. They are at the end for backwards compatibility. */
+#define vring_used_event(vr) ((vr)->avail->ring[(vr)->num])
+#define vring_avail_event(vr) (*(__u16 *)&(vr)->used->ring[(vr)->num])
+
+static inline void vring_init(struct vring *vr, uint32_t num, void *p,
+ uint64_t align)
+{
+ vr->num = num;
+ vr->desc = p;
+ vr->avail = (void *)((char *)p + num*sizeof(struct vring_desc));
+ vr->used = (void *)(uintptr_t)(((uintptr_t)&vr->avail->ring[num]
+ + sizeof(uint16_t) + align-1) & ~(align - 1));
+}
+
+static inline unsigned vring_size(uint16_t num, uint64_t align)
+{
+ return ((sizeof(struct vring_desc) * num + sizeof(uint16_t) * (3 + num)
+ + align - 1) & ~(align - 1))
+ + sizeof(uint16_t) * 3 + sizeof(struct vring_used_elem) * num;
+}
+
+/* The following is used with USED_EVENT_IDX and AVAIL_EVENT_IDX */
+/* Assuming a given event_idx value from the other size, if
+ * we have just incremented index from old to new_idx,
+ * should we trigger an event? */
+static inline int vring_need_event(uint16_t event_idx, uint16_t new_idx, uint16_t old)
+{
+ /* Note: Xen has similar logic for notification hold-off
+ * in include/xen/interface/io/ring.h with req_event and req_prod
+ * corresponding to event_idx + 1 and new_idx respectively.
+ * Note also that req_event and req_prod in Xen start at 1,
+ * event indexes in virtio start at 0. */
+ return (uint16_t)(new_idx - event_idx - 1) < (uint16_t)(new_idx - old);
+}
+
+#endif /* _UAPI_LINUX_VIRTIO_RING_H */
diff --git a/lib/pru_rpmsg/include/pru_virtqueue.h b/lib/pru_rpmsg/include/pru_virtqueue.h
new file mode 100644
index 00000000..7290c89a
--- /dev/null
+++ b/lib/pru_rpmsg/include/pru_virtqueue.h
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+* File : pru_virtqueue.h
+*
+* Summary : A virtual queue interface to simplify vring usage.
+*
+* Notes :
+* - This file implements the vring functions needed by the PRU core
+* - The PRU core is considered the slave and the ARM core is considered the
+* host
+* - The ARM host always adds *available* buffers to send/receive, while the
+* PRU slave always adds *used* buffers to send/receive.
+* - The logic for the PRU side is summarized below:
+*
+* PRU Slave:
+* - To receive buffer from the ARM host:
+* virtqueue_getAvailBuf(vq_slave);
+* >> empty data from buf <<
+* virtqueue_addUsedBuf(vq_slave);
+* virtqueue_kick(vq_slave);
+* - To send buffer to the host:
+* virtqueue_getAvailBuf(vq_host);
+* >> copy data into buf <<
+* virtqueue_addUsedBuf(vq_host);
+* virtqueue_kick(vq_host);
+*/
+
+#ifndef _PRU_VIRTQUEUE_H_
+#define _PRU_VIRTQUEUE_H_
+
+#include <rsc_types.h>
+#include <pru_virtio_ring.h>
+
+/* Return value indicating no kick was sent */
+#define PRU_VIRTQUEUE_NO_KICK 1
+/* Return value indicating success */
+#define PRU_VIRTQUEUE_SUCCESS 0
+/* Return value indicating there were no available buffers */
+#define PRU_VIRTQUEUE_NO_BUF_AVAILABLE -1
+/* Return value indicating that an invalid head index was given */
+#define PRU_VIRTQUEUE_INVALID_HEAD -2
+
+/**
+ * Summary : pru_virtqueue is a structure that encapsulates everything
+ * needed for a 'virtual queue'. This structure wraps a vring
+ * with extra information that is needed by the application
+ * in order to use the vring.
+ *
+ * Variables : id: The notification ID of the vring.
+ * to_arm_event: The PRU-ICSS system event that signals the ARM.
+ * from_arm_event: The PRU-ICSS system event that the ARM uses to
+ * signal the PRU.
+ * last_avail_idx: A local running counter that is used by the
+ * PRU to determine whether or not a new
+ * available buffer has been added to the
+ * vring.
+ * vring: The underlying virtio structure that is being used
+ * to pass buffers back and forth between the ARM and
+ * PRU. See pru_virtio_ring.h.
+ */
+struct pru_virtqueue {
+ uint32_t id;
+ uint32_t to_arm_event;
+ uint32_t from_arm_event;
+ uint16_t last_avail_idx;
+ struct vring vring;
+};
+
+/**
+* Summary : pru_virtqueue_init initializes the pru_virtqueue structure
+* with values from the resource table.
+*
+* Parameters : vq: a pointer to a pru_virtqueue structure that will be
+* initialized
+* vring: a pointer to a vring that is populated and returned
+* by the ARM host through the resource table (the id,
+* number of descriptors, address of the vring, and
+* alignment information are contained in this vring
+* pointer's structure
+* to_arm_event: the PRU-ICSS system event to trigger in order to
+* 'kick' the ARM host when sending data
+* from_arm_event: the PRU-ICSS system event to check
+* for data arriving from the ARM host
+*
+* Description : This function initializes the pru_virtqueue (vq) with input
+* values from the vring in the resource table. This function
+* should be called once for each virtqueue/vring. After
+* initialization the pru_virtqueue pointer, vq, should be
+* passed to the other functions in this header file.
+*
+* Return Value : No return value.
+*/
+void pru_virtqueue_init(
+ struct pru_virtqueue *vq,
+ struct fw_rsc_vdev_vring *vring,
+ uint32_t to_arm_event,
+ uint32_t from_arm_event
+);
+
+/**
+* Summary : pru_virtqueue_get_avail_buf - gets the next available
+* buffer from the pru_virtqueue specified in vq.
+*
+* Parameters : vq: pointer to the pru_virtqueue from which the available
+* buffer should be retrieved
+* buf: pointer to be filled with the address of the available
+* buffer
+* len: pointer to be filled with the length of the available
+* buffer
+*
+* Description : This function compares our last_avail_idx running counter
+* against the vring.avail->idx value to see if there is a
+* buffer available that we have not used. If our last
+* available index running counter matches the vring.avail->idx
+* value then there have been no new available buffers added
+* by the host. If the two indices do not match then the host
+* has added new buffers and and we can set @buf to point to
+* the available buffer and @len to match the available buffers
+* length. If an available buffer is found we increment out
+* last_avail_idx to show that we used another buffer.
+*
+* Return Value : PRU_VIRTQUEUE_NO_BUF_AVAILABLE if no buffer available.
+* Returns the vring.desc index of the available buffer
+* otherwise.
+*/
+int16_t pru_virtqueue_get_avail_buf(
+ struct pru_virtqueue *vq,
+ void **buf,
+ uint32_t *len
+);
+
+/**
+* Summary : pru_virtqueue_add_used_buf adds a used buffer to the
+* pru_virtqueue specified in vq.
+*
+* Parameters : vq: pointer to the pru_virtqueue where the used buffer
+* should be added
+* head: vring.desc[] index of the used buffer
+* len: length of the used buffer being added
+*
+* Description : This function makes sure that the head vring.desc index
+* (head) is a valid index. If the index is valid, then the
+* buffer is added to the used list in the vring contained by
+* the pru_virtqueue (vq).
+*
+* Return Value : PRU_VIRTQUEUE_INVALID_HEAD if head is an invalid index for
+* the vring.desc array. Returns PRU_VIRTQUEUE_SUCCESS
+* otherwise.
+*/
+int16_t pru_virtqueue_add_used_buf(
+ struct pru_virtqueue *vq,
+ int16_t head,
+ uint32_t len
+);
+
+/**
+* Summary : pru_virtqueue_kick sends a notification to the remote
+* processor that the PRU has added a buffer to the
+* pru_virtqueue.
+*
+* Parameters : vq: pointer to the pru_virtqueue that is to be kicked
+*
+* Description : This function is used by the PRU to notify the ARM host in
+* two situations:
+* 1. That the PRU has consumed a buffer that the ARM
+* host sent through the slave pru_virtqueue
+* 2. That the PRU has sent a buffer to the ARM through
+* the host pru_virtqueue
+* If the pru_virtqueue's VRING_AVAIL_F_NO_INTERRUPT flag is
+* set then the pru does not kick the pru_virtqueue.
+*
+* Return Value : PRU_VIRTQUEUE_NO_KICK if the VRING_AVAIL_F_NO_INTERRUPT
+* flag is set or PRU_VIRTQUEUE_SUCCESS otherwise.
+*/
+int16_t pru_virtqueue_kick(
+ struct pru_virtqueue *vq
+);
+
+#endif /* _PRU_VIRTQUEUE_H_ */
diff --git a/lib/pru_rpmsg/include/rsc_types.h b/lib/pru_rpmsg/include/rsc_types.h
new file mode 100644
index 00000000..755ab601
--- /dev/null
+++ b/lib/pru_rpmsg/include/rsc_types.h
@@ -0,0 +1,347 @@
+/*
+ * Copyright(c) 2011 Texas Instruments, Inc.
+ * Copyright(c) 2011 Google, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name Texas Instruments nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RSC_TYPES_H_
+#define _RSC_TYPES_H_
+
+#include <stdint.h>
+#include <pru_types.h>
+
+/* Size constants must match those used on host */
+#define SZ_4K (0x00001000)
+#define SZ_8K (0x00002000)
+
+/* Resource info: Must match include/linux/remoteproc.h: */
+#define TYPE_CARVEOUT 0
+#define TYPE_DEVMEM 1
+#define TYPE_TRACE 2
+#define TYPE_VDEV 3
+#define TYPE_INTMEM 4
+#define TYPE_CUSTOM 5
+
+union fw_custom {
+ /* add custom resources here */
+ struct fw_rsc_custom_ints pru_ints;
+ /* maintain reserved as the last element */
+ uint32_t reserved;
+};
+
+/* Common Resource Structure Types */
+
+/**
+ * struct resource_table - firmware resource table header
+ * @ver: version number
+ * @num: number of resource entries
+ * @reserved: reserved (must be zero)
+ *
+ * A resource table is essentially a list of system resources required
+ * by the remote processor. It may also include configuration entries.
+ * If needed, the remote processor firmware should contain this table
+ * as a dedicated ".resource_table" ELF section.
+ *
+ * Some resources entries are mere announcements, where the host is informed
+ * of specific remoteproc configuration. Other entries require the host to
+ * do something (e.g. allocate a system resource). Sometimes a negotiation
+ * is expected, where the firmware requests a resource, and once allocated,
+ * the host should provide back its details (e.g. address of an allocated
+ * memory region).
+ *
+ * The header of the resource table, as expressed by this structure,
+ * contains a version number (should we need to change this format in the
+ * future), the number of available resource entries, and their offsets
+ * in the table.
+ *
+ * Immediately following this header are the resource entries themselves,
+ * each of which begins with a resource entry header (as described below).
+ */
+struct resource_table {
+ uint32_t ver;
+ uint32_t num;
+ uint32_t reserved[2];
+};
+
+/**
+ * struct fw_rsc_carveout - physically contiguous memory request
+ * @type: type of resource
+ * @da: device address
+ * @pa: physical address
+ * @len: length (in bytes)
+ * @flags: iommu protection flags
+ * @reserved: reserved (must be zero)
+ * @name: human-readable name of the requested memory region
+ *
+ * This resource entry requests the host to allocate a physically contiguous
+ * memory region.
+ *
+ * These request entries should precede other firmware resource entries,
+ * as other entries might request placing other data objects inside
+ * these memory regions (e.g. data/code segments, trace resource entries, ...).
+ *
+ * Allocating memory this way helps utilizing the reserved physical memory
+ * (e.g. CMA) more efficiently, and also minimizes the number of TLB entries
+ * needed to map it (in case @rproc is using an IOMMU). Reducing the TLB
+ * pressure is important; it may have a substantial impact on performance.
+ *
+ * If the firmware is compiled with static addresses, then @da should specify
+ * the expected device address of this memory region. If @da is set to
+ * FW_RSC_ADDR_ANY, then the host will dynamically allocate it, and then
+ * overwrite @da with the dynamically allocated address.
+ *
+ * We will always use @da to negotiate the device addresses, even if it
+ * isn't using an iommu. In that case, though, it will obviously contain
+ * physical addresses.
+ *
+ * Some remote processors needs to know the allocated physical address
+ * even if they do use an iommu. This is needed, e.g., if they control
+ * hardware accelerators which access the physical memory directly (this
+ * is the case with OMAP4 for instance). In that case, the host will
+ * overwrite @pa with the dynamically allocated physical address.
+ * Generally we don't want to expose physical addresses if we don't have to
+ * (remote processors are generally _not_ trusted), so we might want to
+ * change this to happen _only_ when explicitly required by the hardware.
+ *
+ * @flags is used to provide IOMMU protection flags, and @name should
+ * (optionally) contain a human readable name of this carveout region
+ * (mainly for debugging purposes).
+ */
+struct fw_rsc_carveout {
+ uint32_t type;
+ uint32_t da;
+ uint32_t pa;
+ uint32_t len;
+ uint32_t flags;
+ uint32_t reserved;
+ uint8_t name[32];
+};
+
+/**
+ * struct fw_rsc_devmem - iommu mapping request
+ * @type: type of resource
+ * @da: device address
+ * @pa: physical address
+ * @len: length (in bytes)
+ * @flags: iommu protection flags
+ * @reserved: reserved (must be zero)
+ * @name: human-readable name of the requested region to be mapped
+ *
+ * This resource entry requests the host to iommu map a physically contiguous
+ * memory region. This is needed in case the remote processor requires
+ * access to certain memory-based peripherals; _never_ use it to access
+ * regular memory.
+ *
+ * This is obviously only needed if the remote processor is accessing memory
+ * via an iommu.
+ *
+ * @da should specify the required device address, @pa should specify
+ * the physical address we want to map, @len should specify the size of
+ * the mapping and @flags is the IOMMU protection flags. As always, @name may
+ * (optionally) contain a human readable name of this mapping (mainly for
+ * debugging purposes).
+ *
+ * Note: at this point we just "trust" those devmem entries to contain valid
+ * physical addresses, but this isn't safe and will be changed: eventually we
+ * want remoteproc implementations to provide us ranges of physical addresses
+ * the firmware is allowed to request, and not allow firmwares to request
+ * access to physical addresses that are outside those ranges.
+ */
+struct fw_rsc_devmem {
+ uint32_t type;
+ uint32_t da;
+ uint32_t pa;
+ uint32_t len;
+ uint32_t flags;
+ uint32_t reserved;
+ uint8_t name[32];
+};
+
+/**
+ * struct fw_rsc_trace - trace buffer declaration
+ * @type: type of resource
+ * @da: device address
+ * @len: length (in bytes)
+ * @reserved: reserved (must be zero)
+ * @name: human-readable name of the trace buffer
+ *
+ * This resource entry provides the host information about a trace buffer
+ * into which the remote processor will write log messages.
+ *
+ * @da specifies the device address of the buffer, @len specifies
+ * its size, and @name may contain a human readable name of the trace buffer.
+ *
+ * After booting the remote processor, the trace buffers are exposed to the
+ * user via debugfs entries (called trace0, trace1, etc..).
+ */
+struct fw_rsc_trace {
+ uint32_t type;
+ uint32_t da;
+ uint32_t len;
+ uint32_t reserved;
+ uint8_t name[32];
+};
+
+/**
+ * struct fw_rsc_vdev_vring - vring descriptor entry
+ * @da: device address
+ * @align: the alignment between the consumer and producer parts of the vring
+ * @num: num of buffers supported by this vring (must be power of two)
+ * @notifyid is a unique rproc-wide notify index for this vring. This notify
+ * index is used when kicking a remote processor, to let it know that this
+ * vring is triggered.
+ * @reserved: reserved (must be zero)
+ *
+ * This descriptor is not a resource entry by itself; it is part of the
+ * vdev resource type (see below).
+ *
+ * Note that @da should either contain the device address where
+ * the remote processor is expecting the vring, or indicate that
+ * dynamically allocation of the vring's device address is supported.
+ */
+struct fw_rsc_vdev_vring {
+ uint32_t da;
+ uint32_t align;
+ uint32_t num;
+ uint32_t notifyid;
+ uint32_t reserved;
+};
+
+/**
+ * struct fw_rsc_vdev - virtio device header
+ * @type: type of resource
+ * @id: virtio device id (as in virtio_ids.h)
+ * @notifyid is a unique rproc-wide notify index for this vdev. This notify
+ * index is used when kicking a remote processor, to let it know that the
+ * status/features of this vdev have changes.
+ * @dfeatures specifies the virtio device features supported by the firmware
+ * @gfeatures is a place holder used by the host to write back the
+ * negotiated features that are supported by both sides.
+ * @config_len is the size of the virtio config space of this vdev. The config
+ * space lies in the resource table immediate after this vdev header.
+ * @status is a place holder where the host will indicate its virtio progress.
+ * @num_of_vrings indicates how many vrings are described in this vdev header
+ * @reserved: reserved (must be zero)
+ * @vring is an array of @num_of_vrings entries of 'struct fw_rsc_vdev_vring'.
+ *
+ * This resource is a virtio device header: it provides information about
+ * the vdev, and is then used by the host and its peer remote processors
+ * to negotiate and share certain virtio properties.
+ *
+ * By providing this resource entry, the firmware essentially asks remoteproc
+ * to statically allocate a vdev upon registration of the rproc (dynamic vdev
+ * allocation is not yet supported).
+ *
+ * Note: unlike virtualization systems, the term 'host' here means
+ * the Linux side which is running remoteproc to control the remote
+ * processors. We use the name 'gfeatures' to comply with virtio's terms,
+ * though there isn't really any virtualized guest OS here: it's the host
+ * which is responsible for negotiating the final features.
+ * Yeah, it's a bit confusing.
+ *
+ * Note: immediately following this structure is the virtio config space for
+ * this vdev (which is specific to the vdev; for more info, read the virtio
+ * spec). the size of the config space is specified by @config_len.
+ */
+struct fw_rsc_vdev {
+ uint32_t type;
+ uint32_t id;
+ uint32_t notifyid;
+ uint32_t dfeatures;
+ uint32_t gfeatures;
+ uint32_t config_len;
+ uint8_t status;
+ uint8_t num_of_vrings;
+ uint8_t reserved[2];
+ struct fw_rsc_vdev_vring vring[0];
+};
+
+/**
+ * struct fw_rsc_intmem - internal memory publishing request
+ * @type: type of resource
+ * @da: device address
+ * @pa: physical address
+ * @len: length (in bytes)
+ * @reserved: reserved (must be zero)
+ * @name: human-readable name of the region being published
+ *
+ * This resource entry allows a remote processor to publish an internal
+ * memory region to the host. This resource type allows a remote processor
+ * to publish the whole or just a portion of certain internal memories,
+ * while it owns and manages any unpublished portion (eg: a shared L1
+ * memory that can be split configured as RAM and/or cache). This is
+ * primarily provided to allow a host to load code/data into internal
+ * memories, the memory for which is neither allocated nor required to
+ * be mapped into an iommu.
+ *
+ * @da should specify the required address as accessible by the device
+ * without going through an iommu, @pa should specify the physical address
+ * for the region as seen on the bus, @len should specify the size of the
+ * memory region. As always, @name may (optionally) contain a human readable
+ * name of this mapping (mainly for debugging purposes).
+ *
+ * Note: at this point we just "trust" these intmem entries to contain valid
+ * physical bus addresses. these are not currently intended to be managed
+ * as host-controlled heaps, as it is much better to do that from the remote
+ * processor side.
+ */
+
+struct fw_rsc_intmem {
+ uint32_t type;
+ uint32_t da;
+ uint32_t pa;
+ uint32_t len;
+ uint32_t reserved[2];
+ char name[32];
+};
+
+/**
+ * struct fw_rsc_custom - used for custom resource types
+ * @type: type of resource
+ * @sub_type: type of custom resource
+ * @rsc_size: size of @rsc (in bytes)
+ * @rsc: the custom resource
+ *
+ * This resource allows for custom resources specific to an architecture or
+ * device.
+ *
+ * @type is the generic CUSTOM type, @sub_type is the specific custom resource,
+ * @rsc_size is the length of @rsc (in bytes), and @rsc is the actual
+ * parameters. These will be interpreted by the host-side device-specific
+ * driver.
+ */
+
+struct fw_rsc_custom {
+ uint32_t type;
+ uint32_t sub_type;
+ uint32_t rsc_size;
+ union fw_custom rsc;
+};
+
+#endif /* _RSC_TYPES_H_ */
diff --git a/lib/pru_rpmsg/include/types.h b/lib/pru_rpmsg/include/types.h
new file mode 100644
index 00000000..35acdcf6
--- /dev/null
+++ b/lib/pru_rpmsg/include/types.h
@@ -0,0 +1,18 @@
+/*
+ * types.h - standard redefined types
+ */
+
+#ifndef _TYPES_H_
+#define _TYPES_H_
+
+typedef uint8_t __u8;
+typedef uint16_t __u16;
+typedef uint32_t __u32;
+typedef uint64_t __u64;
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+
+#endif /* _TYPES_H_ */
diff --git a/lib/pru_rpmsg/pru_rpmsg.c b/lib/pru_rpmsg/pru_rpmsg.c
new file mode 100644
index 00000000..51fe1e0b
--- /dev/null
+++ b/lib/pru_rpmsg/pru_rpmsg.c
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * File : pru_rpmsg.c
+ *
+ * Summary : An RPMsg implementation for the PRU to use while communicating
+ * with the ARM host.
+ *
+ * Notes :
+ * - Implementaion of the interface described in "pru_rpmsg.h"
+ */
+
+#include <string.h>
+#include <pru_rpmsg.h>
+
+struct pru_rpmsg_hdr {
+ uint32_t src;
+ uint32_t dst;
+ uint32_t reserved;
+ uint16_t len;
+ uint16_t flags;
+ uint8_t data[0];
+};
+
+struct pru_rpmsg_ns_msg {
+ char name[RPMSG_NAME_SIZE];
+ char desc[RPMSG_NAME_SIZE];
+ uint32_t addr;
+ uint32_t flags;
+};
+
+int16_t pru_rpmsg_init(
+ struct pru_rpmsg_transport *transport,
+ struct fw_rsc_vdev_vring *vring0,
+ struct fw_rsc_vdev_vring *vring1,
+ uint32_t to_arm_event,
+ uint32_t from_arm_event
+)
+{
+ if (to_arm_event > MAX_VALID_EVENT || to_arm_event < MIN_VALID_EVENT)
+ return PRU_RPMSG_INVALID_EVENT;
+
+ if (from_arm_event > MAX_VALID_EVENT || from_arm_event < MIN_VALID_EVENT)
+ return PRU_RPMSG_INVALID_EVENT;
+
+ pru_virtqueue_init(&transport->virtqueue0, vring0, to_arm_event, from_arm_event);
+ pru_virtqueue_init(&transport->virtqueue1, vring1, to_arm_event, from_arm_event);
+
+ return PRU_RPMSG_SUCCESS;
+}
+
+int16_t pru_rpmsg_send(
+ struct pru_rpmsg_transport *transport,
+ uint32_t src,
+ uint32_t dst,
+ void *data,
+ uint16_t len
+)
+{
+ struct pru_rpmsg_hdr *msg;
+ uint32_t msg_len;
+ int16_t head;
+ struct pru_virtqueue *virtqueue;
+
+ /*
+ * The length of our payload is larger than the maximum RPMsg buffer size
+ * allowed
+ */
+ if (len > (RPMSG_BUF_SIZE - sizeof(struct pru_rpmsg_hdr)))
+ return PRU_RPMSG_BUF_TOO_SMALL;
+
+ virtqueue = &transport->virtqueue0;
+
+ /* Get an available buffer */
+ head = pru_virtqueue_get_avail_buf(virtqueue, (void **)&msg, &msg_len);
+
+ if (head < 0)
+ return PRU_RPMSG_NO_BUF_AVAILABLE;
+
+ /* Copy local data buffer to the descriptor buffer address */
+ memcpy(msg->data, data, len);
+ msg->len = len;
+ msg->dst = dst;
+ msg->src = src;
+ msg->flags = 0;
+ msg->reserved = 0;
+
+ /* Add the used buffer */
+ if (pru_virtqueue_add_used_buf(virtqueue, head, msg_len) < 0)
+ return PRU_RPMSG_INVALID_HEAD;
+
+ /* Kick the ARM host */
+ pru_virtqueue_kick(virtqueue);
+
+ return PRU_RPMSG_SUCCESS;
+}
+
+int16_t pru_rpmsg_receive(
+ struct pru_rpmsg_transport *transport,
+ uint16_t *src,
+ uint16_t *dst,
+ void *data,
+ uint16_t *len
+)
+{
+ int16_t head;
+ struct pru_rpmsg_hdr *msg;
+ uint32_t msg_len;
+ struct pru_virtqueue *virtqueue;
+
+ virtqueue = &transport->virtqueue1;
+
+ /* Get an available buffer */
+ head = pru_virtqueue_get_avail_buf(virtqueue, (void **)&msg, &msg_len);
+
+ if (head < 0)
+ return PRU_RPMSG_NO_BUF_AVAILABLE;
+
+
+ /* Copy the message payload to the local data buffer provided */
+ memcpy(data, msg->data, msg->len);
+ *src = msg->src;
+ *dst = msg->dst;
+ *len = msg->len;
+
+ /* Add the used buffer */
+ if (pru_virtqueue_add_used_buf(virtqueue, head, msg_len) < 0)
+ return PRU_RPMSG_INVALID_HEAD;
+
+ /* Kick the ARM host */
+ pru_virtqueue_kick(virtqueue);
+
+ return PRU_RPMSG_SUCCESS;
+}
+
+int16_t pru_rpmsg_channel(
+ enum pru_rpmsg_ns_flags flags,
+ struct pru_rpmsg_transport *transport,
+ char *name,
+ char *desc,
+ int32_t port
+)
+{
+ struct pru_rpmsg_ns_msg ns_msg;
+ uint8_t i;
+
+ for (i = 0; i < RPMSG_NAME_SIZE; i++) {
+ ns_msg.name[i] = name[i];
+ ns_msg.desc[i] = desc[i];
+ }
+ ns_msg.addr = port;
+ ns_msg.flags = flags;
+
+ return pru_rpmsg_send(transport, port, 53, &ns_msg, sizeof(ns_msg));
+}
diff --git a/lib/pru_rpmsg/pru_rpmsg.patch b/lib/pru_rpmsg/pru_rpmsg.patch
new file mode 100644
index 00000000..13850b51
--- /dev/null
+++ b/lib/pru_rpmsg/pru_rpmsg.patch
@@ -0,0 +1,16 @@
+diff --git a/lib/pru_rpmsg/include/am335x/pru_iep.h b/lib/pru_rpmsg/include/am335x/pru_iep.h
+index d877ddd..064fb42 100644
+--- a/lib/pru_rpmsg/include/am335x/pru_iep.h
++++ b/lib/pru_rpmsg/include/am335x/pru_iep.h
+@@ -251,6 +251,11 @@ typedef struct {
+
+ } pruIep;
+
++#ifdef __GNUC__
++static volatile pruIntc *__CT_IEP = (void *)0x0002e000;
++#define CT_IEP (*__CT_INTC)
++#else
+ volatile __far pruIep CT_IEP __attribute__((cregister("PRU_IEP", far), peripheral));
++#endif
+
+ #endif /* _PRU_IEP_H_ */
diff --git a/lib/pru_rpmsg/pru_virtqueue.c b/lib/pru_rpmsg/pru_virtqueue.c
new file mode 100644
index 00000000..5b14c6e4
--- /dev/null
+++ b/lib/pru_rpmsg/pru_virtqueue.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * File : pru_virtqueue.c
+ *
+ * Summary : A virtual queue implementation to simplify vring usage.
+ *
+ * Notes :
+ * - Implementaion of the interface described in "pru_virtqueue.h"
+ */
+#include <pru_virtqueue.h>
+
+#ifndef __GNUC__
+volatile register uint32_t __R31;
+#else
+#include <pru/io.h>
+#endif
+
+/* bit 5 is the valid strobe to generate system events with __R31 */
+#define INT_ENABLE (1 << 5)
+
+/* __R31[3:0] can generate 15-0 which maps to system events 31-16
+ * e.g. to generate PRU-ICSS System Event 17 (pru_mst_intr[1])
+ * __R31 = (INT_ENABLE | (17 - INT_OFFSET));
+ */
+#define INT_OFFSET 16
+
+void pru_virtqueue_init(
+ struct pru_virtqueue *vq,
+ struct fw_rsc_vdev_vring *vring,
+ uint32_t to_arm_event,
+ uint32_t from_arm_event
+)
+{
+ vq->id = vring->notifyid;
+ vq->to_arm_event = to_arm_event;
+ vq->from_arm_event = from_arm_event;
+ vq->last_avail_idx = 0;
+
+ vring_init(&vq->vring, vring->num, (void*)vring->da, vring->align);
+}
+
+int16_t pru_virtqueue_get_avail_buf(
+ struct pru_virtqueue *vq,
+ void **buf,
+ uint32_t *len
+)
+{
+ int16_t head;
+ struct vring_desc desc;
+ struct vring_avail *avail;
+
+ avail = vq->vring.avail;
+
+ /* There's nothing available */
+ if (vq->last_avail_idx == avail->idx)
+ return PRU_VIRTQUEUE_NO_BUF_AVAILABLE;
+
+ /*
+ * Grab the next descriptor number the ARM host is advertising, and
+ * increment the last available index we've seen.
+ */
+ head = avail->ring[vq->last_avail_idx++ & (vq->vring.num - 1)];
+
+ desc = vq->vring.desc[head];
+ *buf = (void *)(uint32_t)desc.addr;
+ *len = desc.len;
+
+ return (head);
+}
+
+int16_t pru_virtqueue_add_used_buf(
+ struct pru_virtqueue *vq,
+ int16_t head,
+ uint32_t len
+)
+{
+ struct vring_used_elem *used_elem;
+ uint32_t num;
+ struct vring_used *used;
+
+ num = vq->vring.num;
+ used = vq->vring.used;
+
+ if (head > (int)num)
+ return PRU_VIRTQUEUE_INVALID_HEAD;
+
+ /*
+ * The virtqueue's vring contains a ring of used buffers. Get a pointer to
+ * the next entry in that used ring.
+ */
+ used_elem = &used->ring[used->idx++ & (num - 1)];
+ used_elem->id = head;
+ used_elem->len = len;
+
+ return PRU_VIRTQUEUE_SUCCESS;
+}
+
+int16_t pru_virtqueue_kick(
+ struct pru_virtqueue *vq
+)
+{
+ unsigned int r31;
+
+ /* If requested, do not kick the ARM host */
+ if (vq->vring.avail->flags & VRING_AVAIL_F_NO_INTERRUPT)
+ return PRU_VIRTQUEUE_NO_KICK;
+
+ /* Generate a system event to kick the ARM */
+ r31 = (INT_ENABLE | (vq->to_arm_event - INT_OFFSET));
+#ifdef __GNUC__
+ write_r31(r31);
+#else
+ __R31 = r31;
+#endif
+
+ return PRU_VIRTQUEUE_SUCCESS;
+}