From dc9f9ea1d686a8618f60b4c4591231b8713b92c5 Mon Sep 17 00:00:00 2001
From: Kevin O'Connor <kevin@koconnor.net>
Date: Sat, 31 Aug 2019 20:32:42 -0400
Subject: [PATCH] stm32: Add support for SPI3 bus on alternate PC11,PC12,PC10
pins
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
---
src/stm32/spi.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/src/stm32/spi.c b/src/stm32/spi.c
index c5e360220..1b6d86063 100644
--- a/src/stm32/spi.c
+++ b/src/stm32/spi.c
@@ -10,7 +10,7 @@
#include "sched.h" // sched_shutdown
struct spi_info {
- void *spi;
+ SPI_TypeDef *spi;
uint8_t miso_pin, mosi_pin, sck_pin, function;
};
@@ -21,6 +21,10 @@ DECL_CONSTANT_STR("BUS_PINS_spi1", "PA6,PA7,PA5");
#ifdef SPI3
DECL_ENUMERATION("spi_bus", "spi3", 2);
DECL_CONSTANT_STR("BUS_PINS_spi3", "PB4,PB5,PB3");
+ #if CONFIG_MACH_STM32F4
+DECL_ENUMERATION("spi_bus", "spi3a", 3);
+DECL_CONSTANT_STR("BUS_PINS_spi3a", "PC11,PC12,PC10");
+ #endif
#endif
static const struct spi_info spi_bus[] = {
@@ -28,6 +32,9 @@ static const struct spi_info spi_bus[] = {
{ SPI1, GPIO('A', 6), GPIO('A', 7), GPIO('A', 5), GPIO_FUNCTION(5) },
#ifdef SPI3
{ SPI3, GPIO('B', 4), GPIO('B', 5), GPIO('B', 3), GPIO_FUNCTION(6) },
+ #if CONFIG_MACH_STM32F4
+ { SPI3, GPIO('C', 11), GPIO('C', 12), GPIO('C', 10), GPIO_FUNCTION(6) },
+ #endif
#endif
};