diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/ramips/patches-3.18/0050-SPI-ralink-add-Ralink-SoC-spi-driver.patch | 65 |
1 files changed, 63 insertions, 2 deletions
diff --git a/target/linux/ramips/patches-3.18/0050-SPI-ralink-add-Ralink-SoC-spi-driver.patch b/target/linux/ramips/patches-3.18/0050-SPI-ralink-add-Ralink-SoC-spi-driver.patch index cb691f3365..ca04a17018 100644 --- a/target/linux/ramips/patches-3.18/0050-SPI-ralink-add-Ralink-SoC-spi-driver.patch +++ b/target/linux/ramips/patches-3.18/0050-SPI-ralink-add-Ralink-SoC-spi-driver.patch @@ -41,7 +41,7 @@ Acked-by: John Crispin <blogic@openwrt.org> spi-s3c24xx-hw-$(CONFIG_SPI_S3C24XX_FIQ) += spi-s3c24xx-fiq.o --- /dev/null +++ b/drivers/spi/spi-rt2880.c -@@ -0,0 +1,432 @@ +@@ -0,0 +1,493 @@ +/* + * spi-rt2880.c -- Ralink RT288x/RT305x SPI controller driver + * @@ -77,17 +77,31 @@ Acked-by: John Crispin <blogic@openwrt.org> +#define RAMIPS_SPI_CFG 0x10 +#define RAMIPS_SPI_CTL 0x14 +#define RAMIPS_SPI_DATA 0x20 ++#define RAMIPS_SPI_ADDR 0x24 ++#define RAMIPS_SPI_BS 0x28 ++#define RAMIPS_SPI_USER 0x2C ++#define RAMIPS_SPI_TXFIFO 0x30 ++#define RAMIPS_SPI_RXFIFO 0x34 +#define RAMIPS_SPI_FIFO_STAT 0x38 ++#define RAMIPS_SPI_MODE 0x3C ++#define RAMIPS_SPI_DEV_OFFSET 0x40 ++#define RAMIPS_SPI_DMA 0x80 ++#define RAMIPS_SPI_DMASTAT 0x84 ++#define RAMIPS_SPI_ARBITER 0xF0 + +/* SPISTAT register bit field */ +#define SPISTAT_BUSY BIT(0) + +/* SPICFG register bit field */ -+#define SPICFG_LSBFIRST 0 ++#define SPICFG_ADDRMODE BIT(12) ++#define SPICFG_RXENVDIS BIT(11) ++#define SPICFG_RXCAP BIT(10) ++#define SPICFG_SPIENMODE BIT(9) +#define SPICFG_MSBFIRST BIT(8) +#define SPICFG_SPICLKPOL BIT(6) +#define SPICFG_RXCLKEDGE_FALLING BIT(5) +#define SPICFG_TXCLKEDGE_FALLING BIT(4) ++#define SPICFG_HIZSPI BIT(3) +#define SPICFG_SPICLK_PRESCALE_MASK 0x7 +#define SPICFG_SPICLK_DIV2 0 +#define SPICFG_SPICLK_DIV4 1 @@ -99,13 +113,60 @@ Acked-by: John Crispin <blogic@openwrt.org> +#define SPICFG_SPICLK_DISABLE 7 + +/* SPICTL register bit field */ ++#define SPICTL_START BIT(4) +#define SPICTL_HIZSDO BIT(3) +#define SPICTL_STARTWR BIT(2) +#define SPICTL_STARTRD BIT(1) +#define SPICTL_SPIENA BIT(0) + ++/* SPIUSER register bit field */ ++#define SPIUSER_USERMODE BIT(21) ++#define SPIUSER_INSTR_PHASE BIT(20) ++#define SPIUSER_ADDR_PHASE_MASK 0x7 ++#define SPIUSER_ADDR_PHASE_OFFSET 17 ++#define SPIUSER_MODE_PHASE BIT(16) ++#define SPIUSER_DUMMY_PHASE_MASK 0x3 ++#define SPIUSER_DUMMY_PHASE_OFFSET 14 ++#define SPIUSER_DATA_PHASE_MASK 0x3 ++#define SPIUSER_DATA_PHASE_OFFSET 12 ++#define SPIUSER_DATA_READ (BIT(0) << SPIUSER_DATA_PHASE_OFFSET) ++#define SPIUSER_DATA_WRITE (BIT(1) << SPIUSER_DATA_PHASE_OFFSET) ++#define SPIUSER_ADDR_TYPE_OFFSET 9 ++#define SPIUSER_MODE_TYPE_OFFSET 6 ++#define SPIUSER_DUMMY_TYPE_OFFSET 3 ++#define SPIUSER_DATA_TYPE_OFFSET 0 ++#define SPIUSER_TRANSFER_MASK 0x7 ++#define SPIUSER_TRANSFER_SINGLE BIT(0) ++#define SPIUSER_TRANSFER_DUAL BIT(1) ++#define SPIUSER_TRANSFER_QUAD BIT(2) ++ ++#define SPIUSER_TRANSFER_TYPE(type) ( \ ++ (type << SPIUSER_ADDR_TYPE_OFFSET) | \ ++ (type << SPIUSER_MODE_TYPE_OFFSET) | \ ++ (type << SPIUSER_DUMMY_TYPE_OFFSET) | \ ++ (type << SPIUSER_DATA_TYPE_OFFSET) \ ++) ++ +/* SPIFIFOSTAT register bit field */ ++#define SPIFIFOSTAT_TXEMPTY BIT(19) ++#define SPIFIFOSTAT_RXEMPTY BIT(18) +#define SPIFIFOSTAT_TXFULL BIT(17) ++#define SPIFIFOSTAT_RXFULL BIT(16) ++#define SPIFIFOSTAT_FIFO_MASK 0xff ++#define SPIFIFOSTAT_TX_OFFSET 8 ++#define SPIFIFOSTAT_RX_OFFSET 0 ++ ++#define SPI_FIFO_DEPTH 16 ++ ++/* SPIMODE register bit field */ ++#define SPIMODE_MODE_OFFSET 24 ++#define SPIMODE_DUMMY_OFFSET 0 ++ ++/* SPIARB register bit field */ ++#define SPICTL_ARB_EN BIT(31) ++#define SPICTL_CSCTL1 BIT(16) ++#define SPI1_POR BIT(1) ++#define SPI0_POR BIT(0) + +struct rt2880_spi { + struct spi_master *master; |