| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright 2017-2018 NXP |
| * Copyright 2019-2023 Kococonnector GmbH |
| */ |
| |
| #include <common.h> |
| #include <errno.h> |
| #include <linux/libfdt.h> |
| #include <asm/io.h> |
| #include <asm/gpio.h> |
| #include <asm/arch/clock.h> |
| #include <firmware/imx/sci/sci.h> |
| #include <asm/arch/imx8-pins.h> |
| #include <asm/arch/iomux.h> |
| #include <asm/arch/sys_proto.h> |
| /* #include <power-domain.h> */ |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| #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)) |
| |
| static iomux_cfg_t uart0_pads[] = { |
| SC_P_UART0_RX | MUX_PAD_CTRL(UART_PAD_CTRL), |
| SC_P_UART0_TX | MUX_PAD_CTRL(UART_PAD_CTRL), |
| }; |
| |
| static void setup_iomux_uart(void) |
| { |
| imx8_iomux_setup_multiple_pads(uart0_pads, ARRAY_SIZE(uart0_pads)); |
| } |
| |
| int board_early_init_f(void) |
| { |
| sc_pm_clock_rate_t rate = SC_80MHZ; |
| int ret; |
| |
| /* Set UART0 clock root to 80 MHz */ |
| ret = sc_pm_setup_uart(SC_R_UART_0, rate); |
| if (ret) |
| return ret; |
| |
| setup_iomux_uart(); |
| |
| /* This is needed to because Kernel do not Power Up DC_0 */ |
| sc_pm_set_resource_power_mode(-1, SC_R_DC_0, SC_PM_PW_MODE_ON); |
| sc_pm_set_resource_power_mode(-1, SC_R_GPIO_5, SC_PM_PW_MODE_ON); |
| |
| return 0; |
| } |
| |
| #if IS_ENABLED(CONFIG_FEC_MXC) |
| #include <miiphy.h> |
| |
| int board_phy_config(struct phy_device *phydev) |
| { |
| phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f); |
| phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8); |
| |
| phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00); |
| phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee); |
| phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05); |
| phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100); |
| |
| if (phydev->drv->config) |
| phydev->drv->config(phydev); |
| |
| return 0; |
| } |
| #endif |
| |
| #ifdef CONFIG_MXC_GPIO |
| |
| #define LVDS_ENABLE IMX_GPIO_NR(1, 6) |
| #define MIPI_ENABLE IMX_GPIO_NR(1, 7) |
| |
| #define BB_GPIO_3V3_1 IMX_GPIO_NR(4, 20) |
| #define BB_GPIO_3V3_2 IMX_GPIO_NR(4, 24) |
| #define BB_GPIO_3V3_3 IMX_GPIO_NR(4, 23) |
| |
| static void board_gpio_init(void) |
| { |
| /* Enable BB 3V3 */ |
| gpio_request(BB_GPIO_3V3_1, "bb_3v3_1"); |
| gpio_direction_output(BB_GPIO_3V3_1, 1); |
| gpio_request(BB_GPIO_3V3_2, "bb_3v3_2"); |
| gpio_direction_output(BB_GPIO_3V3_2, 1); |
| gpio_request(BB_GPIO_3V3_3, "bb_3v3_3"); |
| gpio_direction_output(BB_GPIO_3V3_3, 1); |
| |
| /* enable LVDS SAS boards */ |
| gpio_request(LVDS_ENABLE, "lvds_enable"); |
| gpio_direction_output(LVDS_ENABLE, 1); |
| |
| /* enable MIPI SAS boards */ |
| gpio_request(MIPI_ENABLE, "mipi_enable"); |
| gpio_direction_output(MIPI_ENABLE, 1); |
| } |
| #endif |
| |
| int checkboard(void) |
| { |
| puts("Board: DMS-SE20A1 8GB\n"); |
| build_info(); |
| print_bootinfo(); |
| |
| return 0; |
| } |
| |
| int board_init(void) |
| { |
| if (IS_ENABLED(CONFIG_XEN)) |
| return 0; |
| |
| #ifdef CONFIG_MXC_GPIO |
| board_gpio_init(); |
| #endif |
| |
| return 0; |
| } |
| |
| void board_quiesce_devices(void) |
| { |
| if (IS_ENABLED(CONFIG_XEN)) { |
| /* Clear magic number to let xen know uboot is over */ |
| writel(0x0, (void __iomem *)0x80000000); |
| return; |
| } |
| } |
| |
| void detail_board_ddr_info(void) |
| { |
| puts("\nDDR "); |
| } |
| |
| #ifdef CONFIG_OF_BOARD_SETUP |
| int ft_board_setup(void *blob, struct bd_info *bd) |
| { |
| return 0; |
| } |
| #endif |
| |
| int board_mmc_get_env_dev(int devno) |
| { |
| /* Use EMMC */ |
| if (IS_ENABLED(CONFIG_XEN)) |
| return 0; |
| |
| return devno; |
| } |
| |
| int mmc_map_to_kernel_blk(int dev_no) |
| { |
| /* Use EMMC */ |
| if (IS_ENABLED(CONFIG_XEN)) |
| return 0; |
| |
| return dev_no; |
| } |
| |
| int board_late_init(void) |
| { |
| #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG |
| env_set("board_name", "DMS-SE20A1"); |
| env_set("board_rev", "iMX8QM"); |
| #endif |
| |
| env_set("sec_boot", "no"); |
| #ifdef CONFIG_AHAB_BOOT |
| env_set("sec_boot", "yes"); |
| #endif |
| |
| return 0; |
| } |