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stm32: Support spi1 on PB4/PB5/PB3 on stm32f103 and stm32f2 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2021-05-25 23:28:48 -04:00
parent f99dca0918
commit 4ea434796b
2 changed files with 11 additions and 5 deletions
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10
src/stm32/spi.c
View File

@ -19,11 +19,11 @@ DECL_ENUMERATION("spi_bus", "spi2", 0);
DECL_CONSTANT_STR("BUS_PINS_spi2", "PB14,PB15,PB13");
DECL_ENUMERATION("spi_bus", "spi1", 1);
DECL_CONSTANT_STR("BUS_PINS_spi1", "PA6,PA7,PA5");
#if CONFIG_MACH_STM32F0 || CONFIG_MACH_STM32F4
DECL_ENUMERATION("spi_bus", "spi2a", 2);
DECL_ENUMERATION("spi_bus", "spi1a", 2);
DECL_CONSTANT_STR("BUS_PINS_spi1a", "PB4,PB5,PB3");
#if CONFIG_MACH_STM32F0 || CONFIG_MACH_STM32F2 || CONFIG_MACH_STM32F4
DECL_ENUMERATION("spi_bus", "spi2a", 3);
DECL_CONSTANT_STR("BUS_PINS_spi2a", "PC2,PC3,PB10");
DECL_ENUMERATION("spi_bus", "spi1a", 3);
DECL_CONSTANT_STR("BUS_PINS_spi1a", "PB4,PB5,PB3");
#endif
#ifdef SPI3
DECL_ENUMERATION("spi_bus", "spi3", 4);
@ -46,8 +46,8 @@ DECL_CONSTANT_STR("BUS_PINS_spi1", "PA6,PA7,PA5");
static const struct spi_info spi_bus[] = {
{ SPI2, GPIO('B', 14), GPIO('B', 15), GPIO('B', 13), SPI_FUNCTION },
{ SPI1, GPIO('A', 6), GPIO('A', 7), GPIO('A', 5), SPI_FUNCTION },
{ SPI2, GPIO('C', 2), GPIO('C', 3), GPIO('B', 10), SPI_FUNCTION },
{ SPI1, GPIO('B', 4), GPIO('B', 5), GPIO('B', 3), SPI_FUNCTION },
{ SPI2, GPIO('C', 2), GPIO('C', 3), GPIO('B', 10), SPI_FUNCTION },
#ifdef SPI3
{ SPI3, GPIO('B', 4), GPIO('B', 5), GPIO('B', 3), GPIO_FUNCTION(6) },
#if CONFIG_MACH_STM32F4

6
src/stm32/stm32f1.c
View File

@ -154,6 +154,12 @@ gpio_peripheral(uint32_t gpio, uint32_t mode, int pullup)
if (gpio == GPIO('B', 8) || gpio == GPIO('B', 9))
stm32f1_alternative_remap(AFIO_MAPR_I2C1_REMAP_Msk,
AFIO_MAPR_I2C1_REMAP);
} else if (func == 5) {
// SPI
if (gpio == GPIO('B', 3) || gpio == GPIO('B', 4)
|| gpio == GPIO('B', 5))
stm32f1_alternative_remap(AFIO_MAPR_SPI1_REMAP_Msk,
AFIO_MAPR_SPI1_REMAP);
} else if (func == 7) {
// USART
if (gpio == GPIO('B', 6) || gpio == GPIO('B', 7))