| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <device/mmio.h> |
| #include <assert.h> |
| #include <gpio.h> |
| #include <spi_flash.h> |
| #include <soc/addressmap.h> |
| #include <soc/flash_controller.h> |
| #include <soc/spi.h> |
| |
| struct mtk_spi_bus spi_bus[SPI_BUS_NUMBER] = { |
| { |
| .regs = (void *)SPI0_BASE, |
| .cs_gpio = GPIO(SPI_CSB), |
| }, |
| { |
| .regs = (void *)SPI1_BASE, |
| .cs_gpio = GPIO(SPI1_CSB), |
| }, |
| { |
| .regs = (void *)SPI2_BASE, |
| .cs_gpio = GPIO(EINT0), |
| }, |
| { |
| .regs = (void *)SPI3_BASE, |
| .cs_gpio = GPIO(DPI_D9), |
| }, |
| { |
| .regs = (void *)SPI4_BASE, |
| .cs_gpio = GPIO(DPI_D5), |
| }, |
| { |
| .regs = (void *)SPI5_BASE, |
| .cs_gpio = GPIO(DPI_D1), |
| } |
| }; |
| |
| struct pad_func { |
| u8 pin_id; |
| u8 func; |
| }; |
| |
| #define PAD_FUNC(name, func) {PAD_##name##_ID, PAD_##name##_FUNC_##func} |
| #define PAD_FUNC_GPIO(name) {PAD_##name##_ID, 0} |
| |
| static const struct pad_func pad0_funcs[SPI_BUS_NUMBER][4] = { |
| { |
| PAD_FUNC(SPI_MI, SPI0_MI), |
| PAD_FUNC_GPIO(SPI_CSB), |
| PAD_FUNC(SPI_MO, SPI0_MO), |
| PAD_FUNC(SPI_CLK, SPI0_CLK), |
| }, |
| { |
| PAD_FUNC(SPI1_MI, SPI1_A_MI), |
| PAD_FUNC_GPIO(SPI1_CSB), |
| PAD_FUNC(SPI1_MO, SPI1_A_MO), |
| PAD_FUNC(SPI1_CLK, SPI1_A_CLK), |
| }, |
| { |
| PAD_FUNC(KPCOL1, SPI2_MI), |
| PAD_FUNC_GPIO(EINT0), |
| PAD_FUNC(EINT1, SPI2_MO), |
| PAD_FUNC(EINT2, SPI2_CLK), |
| }, |
| { |
| PAD_FUNC(DPI_D8, SPI3_MI), |
| PAD_FUNC_GPIO(DPI_D9), |
| PAD_FUNC(DPI_D10, SPI3_MO), |
| PAD_FUNC(DPI_D11, SPI3_CLK), |
| }, |
| { |
| PAD_FUNC(DPI_D4, SPI4_MI), |
| PAD_FUNC_GPIO(DPI_D5), |
| PAD_FUNC(DPI_D6, SPI4_MO), |
| PAD_FUNC(DPI_D7, SPI4_CLK), |
| }, |
| { |
| PAD_FUNC(DPI_D0, SPI5_MI), |
| PAD_FUNC_GPIO(DPI_D1), |
| PAD_FUNC(DPI_D2, SPI5_MO), |
| PAD_FUNC(DPI_D3, SPI5_CLK), |
| } |
| }; |
| |
| static const struct pad_func bus1_pad1_funcs[4] = { |
| PAD_FUNC(EINT7, SPI1_B_MI), |
| PAD_FUNC_GPIO(EINT8), |
| PAD_FUNC(EINT9, SPI1_B_MO), |
| PAD_FUNC(EINT10, SPI1_B_CLK), |
| }; |
| |
| void mtk_spi_set_gpio_pinmux(unsigned int bus, enum spi_pad_mask pad_select) |
| { |
| assert(bus < SPI_BUS_NUMBER); |
| const struct pad_func *ptr; |
| if (pad_select == SPI_PAD0_MASK) { |
| ptr = pad0_funcs[bus]; |
| } else { |
| assert(bus == 1 && pad_select == SPI_PAD1_MASK); |
| ptr = bus1_pad1_funcs; |
| } |
| for (int i = 0; i < 4; i++) |
| gpio_set_mode((gpio_t){.id = ptr[i].pin_id}, ptr[i].func); |
| } |
| |
| const struct spi_ctrlr_buses spi_ctrlr_bus_map[] = { |
| { |
| .ctrlr = &spi_ctrlr, |
| .bus_start = 0, |
| .bus_end = SPI_BUS_NUMBER - 1, |
| }, |
| }; |
| |
| const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map); |