sam3: Merge sam4e8e support into sam3 code

Most of the peripherals on the sam4e8e are similar to the ones on the
sam3x8e mcu.  Merge the code together and use just one code directory.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 0 insertions, 67 deletions

diff --git a/src/sam4e8e/timer.c b/src/sam4e8e/timer.c
deleted file mode 100644
index 8115ea8a..00000000
--- a/src/sam4e8e/timer.c
+++ /dev/null
@@ -1,67 +0,0 @@
-// SAM4e8e timer port
-//
-// Copyright (C) 2018  Florian Heilmann <Florian.Heilmann@gmx.net>
-//
-// This file may be distributed under the terms of the GNU GPLv3 license.
-
-// CMSIS
-#include "sam4e.h"
-// Klipper
-#include "board/irq.h" // irq_disable
-#include "board/misc.h" // timer_read_time
-#include "board/timer_irq.h" // timer_dispatch_many
-#include "sched.h" // DECL_INIT
-
-// Set the next irq time
-static void
-timer_set(uint32_t value)
-{
-    TC0->TC_CHANNEL[0].TC_RA = value;
-}
-
-// Return the current time (in absolute clock ticks).
-uint32_t
-timer_read_time(void)
-{
-    return TC0->TC_CHANNEL[0].TC_CV;
-}
-
-// Activate timer dispatch as soon as possible
-void
-timer_kick(void)
-{
-    timer_set(timer_read_time() + 50);
-    TC0->TC_CHANNEL[0].TC_SR;
-}
-
-void
-timer_init(void)
-{
-    if ((PMC->PMC_PCSR0 & (1u << ID_TC0)) == 0) {
-        PMC->PMC_PCER0 = 1 << ID_TC0;
-    }
-    TcChannel *tc_channel = &TC0->TC_CHANNEL[0];
-    tc_channel->TC_CCR = TC_CCR_CLKDIS;
-    tc_channel->TC_IDR = 0xFFFFFFFF;
-    tc_channel->TC_SR;
-    tc_channel->TC_CMR = TC_CMR_WAVE | TC_CMR_WAVSEL_UP | TC_CMR_TCCLKS_TIMER_CLOCK1;
-    tc_channel->TC_IER = TC_IER_CPAS;
-    NVIC_SetPriority(TC0_IRQn, 1);
-    NVIC_EnableIRQ(TC0_IRQn);
-    timer_kick();
-    tc_channel->TC_CCR = TC_CCR_CLKEN | TC_CCR_SWTRG;
-}
-DECL_INIT(timer_init);
-
-// IRQ handler
-void __visible __aligned(16) // aligning helps stabilize perf benchmarks
-TC0_Handler(void)
-{
-    irq_disable();
-    uint32_t status = TC0->TC_CHANNEL[0].TC_SR;
-    if (likely(status & TC_SR_CPAS)) {
-        uint32_t next = timer_dispatch_many();
-        timer_set(next);
-    }
-    irq_enable();
-}