diff options
Diffstat (limited to 'src/soc/mediatek/mt8186/spi.c')
| -rw-r--r-- | src/soc/mediatek/mt8186/spi.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8186/spi.c b/src/soc/mediatek/mt8186/spi.c index e72b50f3d5..4a1c13caa5 100644 --- a/src/soc/mediatek/mt8186/spi.c +++ b/src/soc/mediatek/mt8186/spi.c @@ -5,11 +5,50 @@ * Chapter number: 5.6, 5.8 */ +#include <assert.h> #include <device/mmio.h> #include <soc/addressmap.h> #include <soc/flash_controller_common.h> +#include <soc/gpio.h> #include <soc/spi.h> +struct pad_func { + gpio_t gpio; + u8 func; +}; + +#define PAD_FUNC(name, func) {GPIO(name), PAD_##name##_FUNC_##func} + +static const struct pad_func nor_pinmux[SPI_NOR_GPIO_SET_NUM][4] = { + /* GPIO 36 ~ 39 */ + [SPI_NOR_GPIO_SET0] = { + PAD_FUNC(SPI0_CLK, SPINOR_CK), + PAD_FUNC(SPI0_CSB, SPINOR_CS), + PAD_FUNC(SPI0_MO, SPINOR_IO0), + PAD_FUNC(SPI0_MI, SPINOR_IO1), + }, + /* GPIO 61 ~ 64 */ + [SPI_NOR_GPIO_SET1] = { + PAD_FUNC(TDM_RX_BCK, SPINOR_CK), + PAD_FUNC(TDM_RX_MCLK, SPINOR_CS), + PAD_FUNC(TDM_RX_DATA0, SPINOR_IO0), + PAD_FUNC(TDM_RX_DATA1, SPINOR_IO1), + }, +}; + +void mtk_snfc_init(int gpio_set) +{ + const struct pad_func *ptr = NULL; + + assert(gpio_set < SPI_NOR_GPIO_SET_NUM); + + ptr = nor_pinmux[gpio_set]; + for (size_t i = 0; i < ARRAY_SIZE(nor_pinmux[gpio_set]); i++) { + gpio_set_pull(ptr[i].gpio, GPIO_PULL_ENABLE, GPIO_PULL_UP); + gpio_set_mode(ptr[i].gpio, ptr[i].func); + } +} + static const struct spi_ctrlr spi_flash_ctrlr = { .max_xfer_size = 65535, .flash_probe = mtk_spi_flash_probe, |