// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2020 NXP * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include DECLARE_GLOBAL_DATA_PTR; static void spl_dram_init(void) { /* ddr init */ ddr_init(&dram_timing); } #define USDHC2_CD_GPIO IMX_GPIO_NR(2, 12) #define USDHC1_PWR_GPIO IMX_GPIO_NR(2, 10) #define USDHC2_PWR_GPIO IMX_GPIO_NR(2, 19) int board_mmc_getcd(struct mmc *mmc) { struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; int ret = 0; switch (cfg->esdhc_base) { case USDHC1_BASE_ADDR: ret = 1; break; case USDHC2_BASE_ADDR: ret = !gpio_get_value(USDHC2_CD_GPIO); return ret; } return 1; } #define USDHC_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE | \ PAD_CTL_FSEL2) #define USDHC_GPIO_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_DSE1) static iomux_v3_cfg_t const usdhc1_pads[] = { IMX8MQ_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), IMX8MQ_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), IMX8MQ_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), IMX8MQ_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), IMX8MQ_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), IMX8MQ_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), IMX8MQ_PAD_SD1_DATA4__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), IMX8MQ_PAD_SD1_DATA5__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), IMX8MQ_PAD_SD1_DATA6__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), IMX8MQ_PAD_SD1_DATA7__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), IMX8MQ_PAD_SD1_RESET_B__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL), }; static iomux_v3_cfg_t const usdhc2_pads[] = { IMX8MQ_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */ IMX8MQ_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */ IMX8MQ_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */ IMX8MQ_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */ IMX8MQ_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0x16 */ IMX8MQ_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */ IMX8MQ_PAD_SD2_CD_B__GPIO2_IO12 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL), IMX8MQ_PAD_SD2_RESET_B__GPIO2_IO19 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL), }; static struct fsl_esdhc_cfg usdhc_cfg[2] = { {USDHC1_BASE_ADDR}, {USDHC2_BASE_ADDR}, }; int board_mmc_init(struct bd_info *bis) { int i, ret; /* * According to the board_mmc_init() the following map is done: * (U-Boot device node) (Physical Port) * mmc0 USDHC1 * mmc1 USDHC2 */ for (i = 0; i < CFG_SYS_FSL_USDHC_NUM; i++) { switch (i) { case 0: init_clk_usdhc(0); usdhc_cfg[0].sdhc_clk = mxc_get_clock(USDHC1_CLK_ROOT); usdhc_cfg[0].max_bus_width = 8; imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); gpio_request(USDHC1_PWR_GPIO, "usdhc1_reset"); gpio_direction_output(USDHC1_PWR_GPIO, 0); udelay(500); gpio_direction_output(USDHC1_PWR_GPIO, 1); break; case 1: init_clk_usdhc(1); usdhc_cfg[1].sdhc_clk = mxc_get_clock(USDHC2_CLK_ROOT); usdhc_cfg[1].max_bus_width = 4; imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); gpio_request(USDHC2_PWR_GPIO, "usdhc2_reset"); gpio_direction_output(USDHC2_PWR_GPIO, 0); udelay(500); gpio_direction_output(USDHC2_PWR_GPIO, 1); break; default: printf("Warning: you configured more USDHC controllers(%d) than supported by the board\n", i + 1); return -EINVAL; } ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]); if (ret) return ret; } return 0; } void spl_board_init(void) { puts("Normal Boot\n"); } #ifdef CONFIG_SPL_LOAD_FIT int board_fit_config_name_match(const char *name) { /* Just empty function now - can't decide what to choose */ debug("%s: %s\n", __func__, name); return 0; } #endif void board_init_f(ulong dummy) { int ret; /* Clear global data */ memset((void *)gd, 0, sizeof(gd_t)); arch_cpu_init(); init_uart_clk(0); board_early_init_f(); timer_init(); preloader_console_init(); /* Clear the BSS. */ memset(__bss_start, 0, __bss_end - __bss_start); ret = spl_init(); if (ret) { debug("spl_init() failed: %d\n", ret); hang(); } enable_tzc380(); /* DDR initialization */ spl_dram_init(); board_init_r(NULL, 0); }