diff options
Diffstat (limited to 'board/freescale/imx8qxp_arm2/spl.c')
-rw-r--r-- | board/freescale/imx8qxp_arm2/spl.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/board/freescale/imx8qxp_arm2/spl.c b/board/freescale/imx8qxp_arm2/spl.c new file mode 100644 index 0000000000..38258044e3 --- /dev/null +++ b/board/freescale/imx8qxp_arm2/spl.c @@ -0,0 +1,226 @@ +/* + * Copyright 2018 NXP + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <spl.h> +#include <malloc.h> +#include <errno.h> +#include <netdev.h> +#include <fsl_ifc.h> +#include <fdt_support.h> +#include <linux/libfdt.h> +#include <environment.h> +#include <fsl_esdhc.h> +#include <i2c.h> +#include "pca953x.h" + +#include <asm/io.h> +#include <asm/gpio.h> +#include <asm/arch/clock.h> +#include <asm/mach-imx/sci/sci.h> +#include <asm/arch/imx8-pins.h> +#include <dm.h> +#include <imx8_hsio.h> +#include <usb.h> +#include <asm/arch/iomux.h> +#include <asm/arch/sys_proto.h> +#include <asm/mach-imx/video.h> +#include <asm/mach-imx/dma.h> +#include <asm/arch/video_common.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 GPMI_NAND_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_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(4, 22) + +static struct fsl_esdhc_cfg usdhc_cfg[CONFIG_SYS_FSL_USDHC_NUM] = { + {USDHC1_BASE_ADDR, 0, 8}, +#ifndef CONFIG_TARGET_IMX8DX_DDR3_ARM2 + {USDHC2_BASE_ADDR, 0, 4}, +#endif +}; + +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 usdhc1_sd[] = { + SC_P_USDHC1_CLK | MUX_PAD_CTRL(ESDHC_CLK_PAD_CTRL), + SC_P_USDHC1_CMD | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC1_DATA0 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC1_DATA1 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC1_DATA2 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC1_DATA3 | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC1_WP | MUX_PAD_CTRL(ESDHC_PAD_CTRL), /* Mux for WP */ + SC_P_USDHC1_CD_B | MUX_MODE_ALT(4) | MUX_PAD_CTRL(ESDHC_PAD_CTRL), /* Mux for CD, GPIO4 IO22 */ + SC_P_USDHC1_RESET_B | MUX_PAD_CTRL(ESDHC_PAD_CTRL), + SC_P_USDHC1_VSELECT | MUX_PAD_CTRL(ESDHC_PAD_CTRL), +}; + +void spl_dram_init(void) +{ + /* do nothing for now */ +} + +int board_mmc_init(bd_t *bis) +{ + int i, ret; + sc_ipc_t ipcHndl = 0; + +#ifdef CONFIG_NAND_MXS + return 0; +#endif + ipcHndl = gd->arch.ipc_channel_handle; + /* + * 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 < CONFIG_SYS_FSL_USDHC_NUM; i++) { + switch (i) { + case 0: + ret = sc_pm_set_resource_power_mode(ipcHndl, 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(ipcHndl, SC_R_SDHC_1, SC_PM_PW_MODE_ON); + if (ret != SC_ERR_NONE) + return ret; + ret = sc_pm_set_resource_power_mode(ipcHndl, SC_R_GPIO_3, SC_PM_PW_MODE_ON); + if (ret != SC_ERR_NONE) + return ret; + + imx8_iomux_setup_multiple_pads(usdhc1_sd, ARRAY_SIZE(usdhc1_sd)); + init_clk_usdhc(1); + usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); + gpio_request(USDHC1_CD_GPIO, "sd1_cd"); + gpio_direction_input(USDHC1_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; /* eMMC */ + break; + case USDHC2_BASE_ADDR: + ret = !gpio_get_value(USDHC1_CD_GPIO); + break; + } + + return ret; +} + +#endif /* CONFIG_FSL_ESDHC */ + +void spl_board_init(void) +{ +#if defined(CONFIG_QSPI_BOOT) + sc_ipc_t ipcHndl = 0; + + ipcHndl = gd->arch.ipc_channel_handle; + if (sc_pm_set_resource_power_mode(ipcHndl, SC_R_FSPI_0, SC_PM_PW_MODE_ON)) { + puts("Warning: failed to initialize FSPI0\n"); + } +#endif + /* DDR initialization */ + spl_dram_init(); + + puts("Normal Boot\n"); +} + +void spl_board_prepare_for_boot(void) +{ +#if defined(CONFIG_QSPI_BOOT) + sc_ipc_t ipcHndl = 0; + + ipcHndl = gd->arch.ipc_channel_handle; + if (sc_pm_set_resource_power_mode(ipcHndl, SC_R_FSPI_0, SC_PM_PW_MODE_OFF)) { + puts("Warning: failed to turn off FSPI0\n"); + } +#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); +} + |