diff options
Diffstat (limited to 'src/soc/mediatek/common')
| -rw-r--r-- | src/soc/mediatek/common/include/soc/spi_common.h | 2 | ||||
| -rw-r--r-- | src/soc/mediatek/common/spi.c | 8 |
2 files changed, 10 insertions, 0 deletions
diff --git a/src/soc/mediatek/common/include/soc/spi_common.h b/src/soc/mediatek/common/include/soc/spi_common.h index 81a9098180..1ecb94dab0 100644 --- a/src/soc/mediatek/common/include/soc/spi_common.h +++ b/src/soc/mediatek/common/include/soc/spi_common.h @@ -16,6 +16,7 @@ #ifndef MTK_COMMON_SPI_H #define MTK_COMMON_SPI_H +#include <soc/gpio_base.h> #include <spi-generic.h> enum { @@ -77,6 +78,7 @@ struct mtk_spi_bus { struct mtk_spi_regs *regs; int initialized; int state; + gpio_t cs_gpio; }; extern const struct spi_ctrlr spi_ctrlr; diff --git a/src/soc/mediatek/common/spi.c b/src/soc/mediatek/common/spi.c index 40ab9b7002..2a668fe349 100644 --- a/src/soc/mediatek/common/spi.c +++ b/src/soc/mediatek/common/spi.c @@ -17,6 +17,8 @@ #include <assert.h> #include <console/console.h> #include <endian.h> +#include <gpio.h> +#include <stdlib.h> #include <soc/pll.h> #include <soc/spi.h> #include <timer.h> @@ -87,6 +89,8 @@ void mtk_spi_init(unsigned int bus, enum spi_pad_mask pad_select, clrsetbits_le32(®s->spi_pad_macro_sel_reg, SPI_PAD_SEL_MASK, pad_select); + + gpio_output(slave->cs_gpio, 1); } static void mtk_spi_dump_data(const char *name, const uint8_t *data, int size) @@ -109,6 +113,8 @@ static int spi_ctrlr_claim_bus(const struct spi_slave *slave) setbits_le32(®s->spi_cmd_reg, 1 << SPI_CMD_PAUSE_EN_SHIFT); mtk_slave->state = MTK_SPI_IDLE; + gpio_output(mtk_slave->cs_gpio, 0); + return 0; } @@ -243,6 +249,8 @@ static void spi_ctrlr_release_bus(const struct spi_slave *slave) clrbits_le32(®s->spi_cmd_reg, SPI_CMD_PAUSE_EN); spi_sw_reset(regs); mtk_slave->state = MTK_SPI_IDLE; + + gpio_output(mtk_slave->cs_gpio, 1); } static int spi_ctrlr_setup(const struct spi_slave *slave) |