| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright 2017-2018 NXP |
| * Copyright (C) 2019 Oliver Graute <oliver.graute@kococonnector.com> |
| */ |
| |
| #include <common.h> |
| #include <cpu_func.h> |
| #include <env.h> |
| #include <errno.h> |
| #include <init.h> |
| #include <asm/global_data.h> |
| #include <linux/delay.h> |
| #include <linux/libfdt.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> |
| #include <asm/arch/sys_proto.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) |
| { |
| #ifdef CONFIG_FEC_ENABLE_MAX7322 |
| u8 value; |
| |
| /* This is needed to drive the pads to 1.8V instead of 1.5V */ |
| i2c_set_bus_num(CONFIG_MAX7322_I2C_BUS); |
| |
| if (!i2c_probe(CONFIG_MAX7322_I2C_ADDR)) { |
| /* Write 0x1 to enable O0 output, this device has no addr */ |
| /* hence addr length is 0 */ |
| value = 0x1; |
| if (dm_i2c_write(CONFIG_MAX7322_I2C_ADDR, 0, 0, &value, 1)) |
| printf("MAX7322 write failed\n"); |
| } else { |
| printf("MAX7322 Not found\n"); |
| } |
| mdelay(1); |
| #endif |
| |
| 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 |
| |
| int checkboard(void) |
| { |
| puts("Board: ROM-7720-A1 4GB\n"); |
| |
| build_info(); |
| print_bootinfo(); |
| |
| return 0; |
| } |
| |
| int board_init(void) |
| { |
| /* Power up base board */ |
| sc_pm_set_resource_power_mode(-1, SC_R_BOARD_R1, SC_PM_PW_MODE_ON); |
| |
| return 0; |
| } |
| |
| /* |
| * Board specific reset that is system reset. |
| */ |
| void reset_cpu(void) |
| { |
| /* TODO */ |
| } |
| |
| int board_mmc_get_env_dev(int devno) |
| { |
| return devno; |
| } |
| |
| int board_late_init(void) |
| { |
| #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG |
| env_set("board_name", "ROM-7720-A1"); |
| env_set("board_rev", "iMX8QM"); |
| #endif |
| |
| env_set("sec_boot", "no"); |
| #ifdef CONFIG_AHAB_BOOT |
| env_set("sec_boot", "yes"); |
| #endif |
| |
| return 0; |
| } |