diff options
Diffstat (limited to 'drivers/spi/davinci_spi.h')
| -rw-r--r-- | drivers/spi/davinci_spi.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/spi/davinci_spi.h b/drivers/spi/davinci_spi.h index 33f69b5..d4612d3 100644 --- a/drivers/spi/davinci_spi.h +++ b/drivers/spi/davinci_spi.h @@ -74,6 +74,39 @@ struct davinci_spi_regs { /* SPIDEF */ #define SPIDEF_CSDEF0_MASK BIT(0) +#define SPI0_BUS 0 +#define SPI0_BASE CONFIG_SYS_SPI_BASE +/* + * Define default SPI0_NUM_CS as 1 for existing platforms that uses this + * driver. Platform can configure number of CS using CONFIG_SYS_SPI0_NUM_CS + * if more than one CS is supported and by defining CONFIG_SYS_SPI0. + */ +#ifndef CONFIG_SYS_SPI0 +#define SPI0_NUM_CS 1 +#else +#define SPI0_NUM_CS CONFIG_SYS_SPI0_NUM_CS +#endif + +/* + * define CONFIG_SYS_SPI1 when platform has spi-1 device (bus #1) and + * CONFIG_SYS_SPI1_NUM_CS defines number of CS on this bus + */ +#ifdef CONFIG_SYS_SPI1 +#define SPI1_BUS 1 +#define SPI1_NUM_CS CONFIG_SYS_SPI1_NUM_CS +#define SPI1_BASE CONFIG_SYS_SPI1_BASE +#endif + +/* + * define CONFIG_SYS_SPI2 when platform has spi-2 device (bus #2) and + * CONFIG_SYS_SPI2_NUM_CS defines number of CS on this bus + */ +#ifdef CONFIG_SYS_SPI2 +#define SPI2_BUS 2 +#define SPI2_NUM_CS CONFIG_SYS_SPI2_NUM_CS +#define SPI2_BASE CONFIG_SYS_SPI2_BASE +#endif + struct davinci_spi_slave { struct spi_slave slave; struct davinci_spi_regs *regs; |