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atsamd: 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 23:37:17 -04:00
parent 7e8ecfe177
commit bc9fd03dab
9 changed files with 37 additions and 32 deletions
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7
src/atsamd/spi.c
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@@ -28,13 +28,6 @@ spi_init(uint32_t bus, SercomSpi *ss, uint32_t ctrla, uint32_t baud)
struct spi_config
spi_setup(uint32_t bus, uint8_t mode, uint32_t rate)
{
#ifdef SERCOM7
if (bus > 7)
#else
if (bus > 5)
#endif
shutdown("Invalid spi bus");
uint32_t dipo_dopo = sercom_spi_pins(bus);
uint32_t ctrla = (SERCOM_SPI_CTRLA_MODE(3)
| (mode << SERCOM_SPI_CTRLA_CPHA_Pos)