diff options
Diffstat (limited to 'drivers/spi')
-rw-r--r-- | drivers/spi/spi_mpc83xx.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c index 72812bb9b40f..0c16a2b39b41 100644 --- a/drivers/spi/spi_mpc83xx.c +++ b/drivers/spi/spi_mpc83xx.c | |||
@@ -39,6 +39,7 @@ struct mpc83xx_spi_reg { | |||
39 | }; | 39 | }; |
40 | 40 | ||
41 | /* SPI Controller mode register definitions */ | 41 | /* SPI Controller mode register definitions */ |
42 | #define SPMODE_LOOP (1 << 30) | ||
42 | #define SPMODE_CI_INACTIVEHIGH (1 << 29) | 43 | #define SPMODE_CI_INACTIVEHIGH (1 << 29) |
43 | #define SPMODE_CP_BEGIN_EDGECLK (1 << 28) | 44 | #define SPMODE_CP_BEGIN_EDGECLK (1 << 28) |
44 | #define SPMODE_DIV16 (1 << 27) | 45 | #define SPMODE_DIV16 (1 << 27) |
@@ -155,7 +156,7 @@ static void mpc83xx_spi_chipselect(struct spi_device *spi, int value) | |||
155 | /* mask out bits we are going to set */ | 156 | /* mask out bits we are going to set */ |
156 | regval &= ~(SPMODE_CP_BEGIN_EDGECLK | SPMODE_CI_INACTIVEHIGH | 157 | regval &= ~(SPMODE_CP_BEGIN_EDGECLK | SPMODE_CI_INACTIVEHIGH |
157 | | SPMODE_LEN(0xF) | SPMODE_DIV16 | 158 | | SPMODE_LEN(0xF) | SPMODE_DIV16 |
158 | | SPMODE_PM(0xF) | SPMODE_REV); | 159 | | SPMODE_PM(0xF) | SPMODE_REV | SPMODE_LOOP); |
159 | 160 | ||
160 | if (spi->mode & SPI_CPHA) | 161 | if (spi->mode & SPI_CPHA) |
161 | regval |= SPMODE_CP_BEGIN_EDGECLK; | 162 | regval |= SPMODE_CP_BEGIN_EDGECLK; |
@@ -163,6 +164,8 @@ static void mpc83xx_spi_chipselect(struct spi_device *spi, int value) | |||
163 | regval |= SPMODE_CI_INACTIVEHIGH; | 164 | regval |= SPMODE_CI_INACTIVEHIGH; |
164 | if (!(spi->mode & SPI_LSB_FIRST)) | 165 | if (!(spi->mode & SPI_LSB_FIRST)) |
165 | regval |= SPMODE_REV; | 166 | regval |= SPMODE_REV; |
167 | if (spi->mode & SPI_LOOP) | ||
168 | regval |= SPMODE_LOOP; | ||
166 | 169 | ||
167 | regval |= SPMODE_LEN(len); | 170 | regval |= SPMODE_LEN(len); |
168 | 171 | ||
@@ -273,7 +276,8 @@ int mpc83xx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t) | |||
273 | } | 276 | } |
274 | 277 | ||
275 | /* the spi->mode bits understood by this driver: */ | 278 | /* the spi->mode bits understood by this driver: */ |
276 | #define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST) | 279 | #define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH \ |
280 | | SPI_LSB_FIRST | SPI_LOOP) | ||
277 | 281 | ||
278 | static int mpc83xx_spi_setup(struct spi_device *spi) | 282 | static int mpc83xx_spi_setup(struct spi_device *spi) |
279 | { | 283 | { |