| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright 2019 Toradex |
| */ |
| |
| #include <common.h> |
| #include <cpu_func.h> |
| #include <init.h> |
| #include <asm/global_data.h> |
| |
| #include <asm/arch/clock.h> |
| #include <asm/arch/imx8-pins.h> |
| #include <asm/arch/iomux.h> |
| #include <firmware/imx/sci/sci.h> |
| #include <asm/arch/sys_proto.h> |
| #include <asm/gpio.h> |
| #include <asm/io.h> |
| #include <env.h> |
| #include <errno.h> |
| #include <linux/libfdt.h> |
| |
| #include "../common/tdx-cfg-block.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 uart3_pads[] = { |
| SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL), |
| SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL), |
| /* Transceiver FORCEOFF# signal, mux to use pull-up */ |
| SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | MUX_PAD_CTRL(UART_PAD_CTRL), |
| }; |
| |
| static void setup_iomux_uart(void) |
| { |
| imx8_iomux_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads)); |
| } |
| |
| static int is_imx8dx(void) |
| { |
| u32 val = 0; |
| sc_err_t sc_err = sc_misc_otp_fuse_read(-1, 6, &val); |
| |
| if (sc_err == SC_ERR_NONE) { |
| /* DX has two A35 cores disabled */ |
| return (val & 0xf) != 0x0; |
| } |
| return false; |
| } |
| |
| void board_mem_get_layout(u64 *phys_sdram_1_start, |
| u64 *phys_sdram_1_size, |
| u64 *phys_sdram_2_start, |
| u64 *phys_sdram_2_size) |
| { |
| *phys_sdram_1_start = PHYS_SDRAM_1; |
| if (is_imx8dx()) |
| /* Our DX based SKUs only have 1 GB RAM */ |
| *phys_sdram_1_size = SZ_1G; |
| else |
| *phys_sdram_1_size = PHYS_SDRAM_1_SIZE; |
| *phys_sdram_2_start = PHYS_SDRAM_2; |
| *phys_sdram_2_size = PHYS_SDRAM_2_SIZE; |
| } |
| |
| int board_early_init_f(void) |
| { |
| sc_pm_clock_rate_t rate; |
| sc_err_t err = 0; |
| |
| /* |
| * This works around that having only UART3 up the baudrate is 1.2M |
| * instead of 115.2k. Set UART0 clock root to 80 MHz |
| */ |
| rate = 80000000; |
| err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate); |
| if (err != SC_ERR_NONE) |
| return 0; |
| |
| /* Set UART3 clock root to 80 MHz and enable it */ |
| rate = SC_80MHZ; |
| err = sc_pm_setup_uart(SC_R_UART_3, rate); |
| if (err != SC_ERR_NONE) |
| return 0; |
| |
| setup_iomux_uart(); |
| |
| return 0; |
| } |
| |
| #if IS_ENABLED(CONFIG_DM_GPIO) |
| static void board_gpio_init(void) |
| { |
| /* TODO */ |
| } |
| #else |
| static inline void board_gpio_init(void) {} |
| #endif |
| |
| #if IS_ENABLED(CONFIG_FEC_MXC) |
| #include <miiphy.h> |
| |
| int board_phy_config(struct phy_device *phydev) |
| { |
| if (phydev->drv->config) |
| phydev->drv->config(phydev); |
| |
| return 0; |
| } |
| #endif |
| |
| int checkboard(void) |
| { |
| puts("Model: Toradex Colibri iMX8X\n"); |
| |
| build_info(); |
| print_bootinfo(); |
| |
| return 0; |
| } |
| |
| static void select_dt_from_module_version(void) |
| { |
| /* |
| * The dtb filename is constructed from ${soc}-colibri-${fdt_board}.dtb. |
| * Set soc depending on the used SoC. |
| */ |
| if (is_imx8dx()) |
| env_set("soc", "imx8dx"); |
| else |
| env_set("soc", "imx8qxp"); |
| } |
| |
| int board_init(void) |
| { |
| board_gpio_init(); |
| |
| return 0; |
| } |
| |
| /* |
| * Board specific reset that is system reset. |
| */ |
| void reset_cpu(void) |
| { |
| /* TODO */ |
| } |
| |
| #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) |
| int ft_board_setup(void *blob, struct bd_info *bd) |
| { |
| return ft_common_board_setup(blob, bd); |
| } |
| #endif |
| |
| int board_mmc_get_env_dev(int devno) |
| { |
| return devno; |
| } |
| |
| int board_late_init(void) |
| { |
| #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG |
| /* TODO move to common */ |
| env_set("board_name", "Colibri iMX8QXP"); |
| env_set("board_rev", "v1.0"); |
| #endif |
| |
| build_info(); |
| |
| select_dt_from_module_version(); |
| |
| return 0; |
| } |