diff options
Diffstat (limited to 'board/advantech/imx8qm_rom7720_a1/spl.c')
| -rw-r--r-- | board/advantech/imx8qm_rom7720_a1/spl.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/board/advantech/imx8qm_rom7720_a1/spl.c b/board/advantech/imx8qm_rom7720_a1/spl.c new file mode 100644 index 0000000000..3f31a8f9c3 --- /dev/null +++ b/board/advantech/imx8qm_rom7720_a1/spl.c @@ -0,0 +1,220 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2017-2018 NXP + */ +#include <common.h> +#include <dm.h> +#include <spl.h> +#include <fsl_esdhc.h> + +#include <asm/io.h> +#include <asm/gpio.h> +#include <asm/arch/clock.h> +#include <asm/arch/sci/sci.h> +#include <asm/arch/imx8-pins.h> +#include <asm/arch/iomux.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define ESDHC_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \ + (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ + (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ + (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) + +#define ESDHC_CLK_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \ + (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ + (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ + (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) + +#define ENET_INPUT_PAD_CTRL ((SC_PAD_CONFIG_OD_IN << PADRING_CONFIG_SHIFT) | \ + (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ + (SC_PAD_28FDSOI_DSE_18V_10MA << PADRING_DSE_SHIFT) | \ + (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) + +#define ENET_NORMAL_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \ + (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ + (SC_PAD_28FDSOI_DSE_18V_10MA << PADRING_DSE_SHIFT) | \ + (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) + +#define FSPI_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \ + (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ + (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ + (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) + +#define GPIO_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \ + (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ + (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ + (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) + +#define I2C_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \ + (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ + (SC_PAD_28FDSOI_DSE_DV_LOW << PADRING_DSE_SHIFT) | \ + (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) + +#define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \ + (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ + (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ + (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) +#ifdef CONFIG_FSL_ESDHC + +#define USDHC1_CD_GPIO IMX_GPIO_NR(5, 22) +#define USDHC2_CD_GPIO IMX_GPIO_NR(4, 12) + +static struct fsl_esdhc_cfg usdhc_cfg[CONFIG_SYS_FSL_USDHC_NUM] = { + {USDHC1_BASE_ADDR, 0, 8}, + {USDHC2_BASE_ADDR, 0, 4}, + {USDHC3_BASE_ADDR, 0, 4}, +}; + +static iomux_cfg_t emmc0[] = { + SC_P_EMMC0_CLK | MUX_PAD_CTRL(ESDHC_CLK_PAD_CTRL), + SC_P_EMMC0_CMD | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_EMMC0_DATA0 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_EMMC0_DATA1 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_EMMC0_DATA2 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_EMMC0_DATA3 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_EMMC0_DATA4 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_EMMC0_DATA5 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_EMMC0_DATA6 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_EMMC0_DATA7 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_EMMC0_RESET_B | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_EMMC0_STROBE | MUX_PAD_CTRL(ESDHC_PAD_CTRL), +}; + +static iomux_cfg_t usdhc2_sd[] = { + SC_P_USDHC2_CLK | MUX_PAD_CTRL(ESDHC_CLK_PAD_CTRL), + SC_P_USDHC2_CMD | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC2_DATA0 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC2_DATA1 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC2_DATA2 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC2_DATA3 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC2_RESET_B | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC2_WP | MUX_MODE_ALT(3) | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC2_CD_B | MUX_MODE_ALT(3) | MUX_PAD_CTRL(ESDHC_PAD_CTRL), +}; + +int board_mmc_init(bd_t *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 + * mmc2 USDHC3 + */ + for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { + switch (i) { + case 0: + ret = sc_pm_set_resource_power_mode(-1, SC_R_SDHC_0, SC_PM_PW_MODE_ON); + if (ret != SC_ERR_NONE) + return ret; + + imx8_iomux_setup_multiple_pads(emmc0, ARRAY_SIZE(emmc0)); + init_clk_usdhc(0); + usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + break; + case 1: + ret = sc_pm_set_resource_power_mode(-1, SC_R_SDHC_2, SC_PM_PW_MODE_ON); + if (ret != SC_ERR_NONE) + return ret; + ret = sc_pm_set_resource_power_mode(-1, SC_R_GPIO_4, SC_PM_PW_MODE_ON); + if (ret != SC_ERR_NONE) + return ret; + + imx8_iomux_setup_multiple_pads(usdhc2_sd, ARRAY_SIZE(usdhc2_sd)); + init_clk_usdhc(2); + usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + gpio_request(USDHC2_CD_GPIO, "sd2_cd"); + gpio_direction_input(USDHC2_CD_GPIO); + break; + default: + printf("Warning: you configured more USDHC controllers" + "(%d) than supported by the board\n", i + 1); + return 0; + } + ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]); + if (ret) { + printf("Warning: failed to initialize mmc dev %d\n", i); + return ret; + } + } + + return 0; +} + +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(USDHC1_CD_GPIO); + break; + case USDHC3_BASE_ADDR: + ret = !gpio_get_value(USDHC2_CD_GPIO); + break; + } + + return ret; +} + +#endif /* CONFIG_FSL_ESDHC */ + +void spl_board_init(void) +{ +#if defined(CONFIG_SPL_SPI_SUPPORT) + if (sc_rm_is_resource_owned(-1, SC_R_FSPI_0)) { + if (sc_pm_set_resource_power_mode(-1, SC_R_FSPI_0, SC_PM_PW_MODE_ON)) { + puts("Warning: failed to initialize FSPI0\n"); + } + } +#endif + + puts("Normal Boot\n"); +} + +void spl_board_prepare_for_boot(void) +{ +#if defined(CONFIG_SPL_SPI_SUPPORT) + if (sc_rm_is_resource_owned(-1, SC_R_FSPI_0)) { + if (sc_pm_set_resource_power_mode(-1, SC_R_FSPI_0, SC_PM_PW_MODE_OFF)) { + puts("Warning: failed to turn off FSPI0\n"); + } + } +#endif +} + +#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) +{ + /* Clear global data */ + memset((void *)gd, 0, sizeof(gd_t)); + + arch_cpu_init(); + + board_early_init_f(); + + timer_init(); + + preloader_console_init(); + + /* Clear the BSS. */ + memset(__bss_start, 0, __bss_end - __bss_start); + + board_init_r(NULL, 0); +} |