| /* SPDX-License-Identifier: GPL-2.0-only OR MIT */ |
| |
| #include <assert.h> |
| #include <device/mmio.h> |
| #include <gpio.h> |
| #include <soc/addressmap.h> |
| #include <soc/flash_controller_common.h> |
| #include <soc/spi.h> |
| |
| struct mtk_spi_bus spi_bus[SPI_BUS_NUMBER] = { |
| { |
| .regs = (void *)SPI0_BASE, |
| .cs_gpio = GPIO(SPIM0_CSB), |
| }, |
| { |
| .regs = (void *)SPI1_BASE, |
| .cs_gpio = GPIO(SPIM1_CSB), |
| }, |
| { |
| .regs = (void *)SPI2_BASE, |
| .cs_gpio = GPIO(SPIM2_CSB), |
| }, |
| { |
| .regs = (void *)SPI3_BASE, |
| .cs_gpio = GPIO(PWRAP_SPI_CSN), |
| }, |
| { |
| .regs = (void *)SPI4_BASE, |
| .cs_gpio = GPIO(DGI_D2), |
| }, |
| { |
| .regs = (void *)SPI5_BASE, |
| .cs_gpio = GPIO(DGI_D6), |
| }, |
| }; |
| |
| 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(SPIM0_MI, SPIM0_MI), |
| PAD_FUNC_GPIO(SPIM0_CSB), |
| PAD_FUNC(SPIM0_MO, SPIM0_MO), |
| PAD_FUNC(SPIM0_CLK, SPIM0_CLK), |
| }, |
| { |
| PAD_FUNC(SPIM1_MI, SPIM1_MI), |
| PAD_FUNC_GPIO(SPIM1_CSB), |
| PAD_FUNC(SPIM1_MO, SPIM1_MO), |
| PAD_FUNC(SPIM1_CLK, SPIM1_CLK), |
| }, |
| { |
| PAD_FUNC(SPIM2_MI, SPIM2_MI), |
| PAD_FUNC_GPIO(SPIM2_CSB), |
| PAD_FUNC(SPIM2_MO, SPIM2_MO), |
| PAD_FUNC(SPIM2_CLK, SPIM2_CLK), |
| }, |
| { |
| PAD_FUNC(PWRAP_SPI_MI, SPIM3_MI), |
| PAD_FUNC_GPIO(PWRAP_SPI_CSN), |
| PAD_FUNC(PWRAP_SPI_MO, SPIM3_MO), |
| PAD_FUNC(PWRAP_SPI_CK, SPIM3_CLK), |
| }, |
| { |
| PAD_FUNC(DGI_D3, SPIM4_MI), |
| PAD_FUNC_GPIO(DGI_D2), |
| PAD_FUNC(DGI_D1, SPIM4_MO), |
| PAD_FUNC(DGI_D0, SPIM4_CLK), |
| }, |
| { |
| PAD_FUNC(DGI_D7, SPIM5_MI), |
| PAD_FUNC_GPIO(DGI_D6), |
| PAD_FUNC(DGI_D5, SPIM5_MO), |
| PAD_FUNC(DGI_D4, SPIM5_CLK), |
| }, |
| }; |
| |
| void mtk_spi_set_gpio_pinmux(unsigned int bus, enum spi_pad_mask pad_select) |
| { |
| assert(bus < SPI_BUS_NUMBER); |
| assert(pad_select == SPI_PAD0_MASK); |
| const struct pad_func *ptr = NULL; |
| |
| ptr = pad0_funcs[bus]; |
| for (int i = 0; i < 4; i++) |
| gpio_set_mode((gpio_t){.id = ptr[i].pin_id}, ptr[i].func); |
| } |
| |
| static const struct spi_ctrlr spi_flash_ctrlr = { |
| .max_xfer_size = 65535, |
| .flash_probe = mtk_spi_flash_probe, |
| }; |
| |
| const struct spi_ctrlr_buses spi_ctrlr_bus_map[] = { |
| { |
| .ctrlr = &spi_ctrlr, |
| .bus_start = 0, |
| .bus_end = SPI_BUS_NUMBER - 1, |
| }, |
| { |
| .ctrlr = &spi_flash_ctrlr, |
| .bus_start = CONFIG_BOOT_DEVICE_SPI_FLASH_BUS, |
| .bus_end = CONFIG_BOOT_DEVICE_SPI_FLASH_BUS, |
| }, |
| }; |
| |
| const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map); |