From 77619e912ca704977836485204238b17fed26b6b Mon Sep 17 00:00:00 2001
From: Alex Maclean <monkeh@monkeh.net>
Date: Mon, 18 Dec 2023 01:05:06 +0000
Subject: stm32: Fix CAN for STM32G4

Signed-off-by: Alex Maclean <monkeh@monkeh.net>
---
 src/stm32/stm32g4.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/stm32/stm32g4.c')

diff --git a/src/stm32/stm32g4.c b/src/stm32/stm32g4.c
index aed9ed8f..139ea8ea 100644
--- a/src/stm32/stm32g4.c
+++ b/src/stm32/stm32g4.c
@@ -105,6 +105,9 @@ enable_clock_stm32g4(void)
         enable_pclock(CRS_BASE);
         CRS->CR |= CRS_CR_AUTOTRIMEN | CRS_CR_CEN;
     }
+
+    // Use PCLK for FDCAN
+    RCC->CCIPR = 2 << RCC_CCIPR_FDCANSEL_Pos;
 }
 
 // Main clock setup called at chip startup
-- 
cgit v1.2.3-70-g09d2