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soc/mediatek/mt8186: revise SPI NOR GPIO selection 

The setting of SPI NOR GPIOs should be:
CS: pull up.
CLK/IO0/IO1: pull down.

BUG=b:202871018
TEST=build pass

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: Ideacb797a1dc9999ab6ba00cf33adbbbc24213dc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59940
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
This commit is contained in:
Rex-BC Chen 2021-12-02 21:10:41 +08:00 committed by Hung-Te Lin
parent c5432ec098
commit d22e921178
1 changed files with 13 additions and 11 deletions
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24
src/soc/mediatek/mt8186/spi.c
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@ -43,10 +43,12 @@ struct mtk_spi_bus spi_bus[SPI_BUS_NUMBER] = {
struct pad_func {
gpio_t gpio;
u8 func;
enum pull_select select;
};
#define PAD_FUNC(name, func) {GPIO(name), PAD_##name##_FUNC_##func}
#define PAD_FUNC_GPIO(name) {GPIO(name), 0}
#define PAD_FUNC(name, func) {GPIO(name), PAD_##name##_FUNC_##func, GPIO_PULL_DOWN}
#define PAD_FUNC_SEL(name, func, sel) {GPIO(name), PAD_##name##_FUNC_##func, sel}
#define PAD_FUNC_GPIO(name) {GPIO(name), 0, GPIO_PULL_DOWN}
static const struct pad_func pad0_funcs[SPI_BUS_NUMBER][4] = {
{
@ -121,17 +123,17 @@ static const struct pad_func pad1_funcs[SPI_BUS_NUMBER][4] = {
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),
PAD_FUNC_SEL(SPI0_CLK, SPINOR_CK, GPIO_PULL_DOWN),
PAD_FUNC_SEL(SPI0_CSB, SPINOR_CS, GPIO_PULL_UP),
PAD_FUNC_SEL(SPI0_MO, SPINOR_IO0, GPIO_PULL_DOWN),
PAD_FUNC_SEL(SPI0_MI, SPINOR_IO1, GPIO_PULL_DOWN),
},
/* 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),
PAD_FUNC_SEL(TDM_RX_BCK, SPINOR_CK, GPIO_PULL_DOWN),
PAD_FUNC_SEL(TDM_RX_MCLK, SPINOR_CS, GPIO_PULL_UP),
PAD_FUNC_SEL(TDM_RX_DATA0, SPINOR_IO0, GPIO_PULL_DOWN),
PAD_FUNC_SEL(TDM_RX_DATA1, SPINOR_IO1, GPIO_PULL_DOWN),
},
};
@ -143,7 +145,7 @@ void mtk_snfc_init(int gpio_set)
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_pull(ptr[i].gpio, GPIO_PULL_ENABLE, ptr[i].select);
gpio_set_mode(ptr[i].gpio, ptr[i].func);
}
}