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| author | Mark Brown <broonie@kernel.org> | 2014-12-08 13:17:10 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-12-08 13:17:10 +0100 |
| commit | c9508d4b3a0a37157fd2fbbac8caa56d7399600b (patch) | |
| tree | 3076a74b29f471143c0f97b88360da67457a94d0 /drivers | |
| parent | Linux 3.18 (diff) | |
| parent | spi: cadence: Fix 3-to-8 mux mode (diff) | |
| download | linux-c9508d4b3a0a37157fd2fbbac8caa56d7399600b.tar.xz linux-c9508d4b3a0a37157fd2fbbac8caa56d7399600b.zip | |
Merge remote-tracking branch 'spi/fix/cadence' into spi-linus
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-cadence.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/spi/spi-cadence.c b/drivers/spi/spi-cadence.c index 7b811e38c7ad..33f0bec1a7eb 100644 --- a/drivers/spi/spi-cadence.c +++ b/drivers/spi/spi-cadence.c @@ -47,6 +47,7 @@ #define CDNS_SPI_CR_CPHA_MASK 0x00000004 /* Clock Phase Control */ #define CDNS_SPI_CR_CPOL_MASK 0x00000002 /* Clock Polarity Control */ #define CDNS_SPI_CR_SSCTRL_MASK 0x00003C00 /* Slave Select Mask */ +#define CDNS_SPI_CR_PERI_SEL_MASK 0x00000200 /* Peripheral Select Decode */ #define CDNS_SPI_CR_BAUD_DIV_MASK 0x00000038 /* Baud Rate Divisor Mask */ #define CDNS_SPI_CR_MSTREN_MASK 0x00000001 /* Master Enable Mask */ #define CDNS_SPI_CR_MANSTRTEN_MASK 0x00008000 /* Manual TX Enable Mask */ @@ -148,6 +149,11 @@ static inline void cdns_spi_write(struct cdns_spi *xspi, u32 offset, u32 val) */ static void cdns_spi_init_hw(struct cdns_spi *xspi) { + u32 ctrl_reg = CDNS_SPI_CR_DEFAULT_MASK; + + if (xspi->is_decoded_cs) + ctrl_reg |= CDNS_SPI_CR_PERI_SEL_MASK; + cdns_spi_write(xspi, CDNS_SPI_ER_OFFSET, CDNS_SPI_ER_DISABLE_MASK); cdns_spi_write(xspi, CDNS_SPI_IDR_OFFSET, @@ -160,8 +166,7 @@ static void cdns_spi_init_hw(struct cdns_spi *xspi) cdns_spi_write(xspi, CDNS_SPI_ISR_OFFSET, CDNS_SPI_IXR_ALL_MASK); - cdns_spi_write(xspi, CDNS_SPI_CR_OFFSET, - CDNS_SPI_CR_DEFAULT_MASK); + cdns_spi_write(xspi, CDNS_SPI_CR_OFFSET, ctrl_reg); cdns_spi_write(xspi, CDNS_SPI_ER_OFFSET, CDNS_SPI_ER_ENABLE_MASK); } |