// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2019 Toradex */ #include #include #include #include #include #include #include #include #include #include #include #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)); } 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 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; } int board_init(void) { board_gpio_init(); return 0; } void detail_board_ddr_info(void) { puts("\nDDR "); } /* * Board specific reset that is system reset. */ void reset_cpu(ulong addr) { /* TODO */ } #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) int ft_board_setup(void *blob, bd_t *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 return 0; }