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atsam: Use enumerations for buses and reserve pins

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2019-03-31 23:12:44 -04:00
parent 7765653d83
commit 7e8ecfe177
5 changed files with 45 additions and 12 deletions
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23
src/atsam/spi.c
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@@ -22,6 +22,27 @@ struct spi_info {
uint8_t miso_pin, mosi_pin, sck_pin, rxtx_periph, sck_periph;
};
#if CONFIG_MACH_SAM3X
DECL_ENUMERATION("spi_bus", "spi0", 0);
DECL_ENUMERATION_RANGE("spi_bus", "usart0", 1, 3);
DECL_CONSTANT_STR("BUS_PINS_spi0", "PA25,PA26,PA27");
DECL_CONSTANT_STR("BUS_PINS_usart0", "PA10,PA11,PA17");
DECL_CONSTANT_STR("BUS_PINS_usart1", "PA12,PA13,PA16");
DECL_CONSTANT_STR("BUS_PINS_usart2", "PB21,PB20,PB24");
#elif CONFIG_MACH_SAM4S
DECL_ENUMERATION("spi_bus", "spi", 0);
DECL_ENUMERATION_RANGE("spi_bus", "usart0", 1, 2);
DECL_CONSTANT_STR("BUS_PINS_spi", "PA12,PA13,PA14");
DECL_CONSTANT_STR("BUS_PINS_usart0", "PA5,PA6,PA2");
DECL_CONSTANT_STR("BUS_PINS_usart1", "PA21,PA22,PA23");
#elif CONFIG_MACH_SAM4E
DECL_ENUMERATION("spi_bus", "spi", 0);
DECL_ENUMERATION_RANGE("spi_bus", "usart0", 1, 2);
DECL_CONSTANT_STR("BUS_PINS_spi", "PA12,PA13,PA14");
DECL_CONSTANT_STR("BUS_PINS_usart0", "PB0,PB1,PB13");
DECL_CONSTANT_STR("BUS_PINS_usart1", "PA21,PA22,PA23");
#endif
static const struct spi_info spi_bus[] = {
#if CONFIG_MACH_SAM3X
{ SPI0, ID_SPI0, GPIO('A', 25), GPIO('A', 26), GPIO('A', 27), 'A', 'A' },
@@ -33,9 +54,9 @@ static const struct spi_info spi_bus[] = {
{ USART0, ID_USART0, GPIO('A', 5), GPIO('A', 6), GPIO('A', 2), 'A', 'B' },
{ USART1, ID_USART1, GPIO('A', 21), GPIO('A', 22), GPIO('A', 23), 'A', 'A'},
#elif CONFIG_MACH_SAM4E
{ SPI, ID_SPI, GPIO('A', 12), GPIO('A', 13), GPIO('A', 14), 'A', 'A' },
{ USART0, ID_USART0, GPIO('B', 0), GPIO('B', 1), GPIO('B', 13), 'C', 'C' },
{ USART1, ID_USART1, GPIO('A', 21), GPIO('A', 22), GPIO('A', 23), 'A', 'A'},
{ SPI, ID_SPI, GPIO('A', 12), GPIO('A', 13), GPIO('A', 14), 'A', 'A' },
#endif
};