1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * Copyright 2018 NXP 4 */ 5 6#include <common.h> 7#include <cpu_func.h> 8#include <env.h> 9#include <errno.h> 10#include <init.h> 11#include <asm/global_data.h> 12#include <linux/delay.h> 13#include <linux/libfdt.h> 14#include <fsl_esdhc_imx.h> 15#include <fdt_support.h> 16#include <asm/io.h> 17#include <asm/gpio.h> 18#include <asm/arch/clock.h> 19#include <firmware/imx/sci/sci.h> 20#include <asm/arch/imx8-pins.h> 21#include <asm/arch/snvs_security_sc.h> 22#include <asm/arch/iomux.h> 23#include <asm/arch/sys_proto.h> 24 25DECLARE_GLOBAL_DATA_PTR; 26 27#define GPIO_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \ 28 (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ 29 (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ 30 (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) 31 32#define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \ 33 (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ 34 (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \ 35 (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT)) 36 37static iomux_cfg_t uart0_pads[] = { 38 SC_P_UART0_RX | MUX_PAD_CTRL(UART_PAD_CTRL), 39 SC_P_UART0_TX | MUX_PAD_CTRL(UART_PAD_CTRL), 40}; 41 42static void setup_iomux_uart(void) 43{ 44 imx8_iomux_setup_multiple_pads(uart0_pads, ARRAY_SIZE(uart0_pads)); 45} 46 47int board_early_init_f(void) 48{ 49 sc_pm_clock_rate_t rate = SC_80MHZ; 50 int ret; 51 52 /* Set UART0 clock root to 80 MHz */ 53 ret = sc_pm_setup_uart(SC_R_UART_0, rate); 54 if (ret) 55 return ret; 56 57 setup_iomux_uart(); 58 59 return 0; 60} 61 62#if CONFIG_IS_ENABLED(DM_GPIO) 63static void board_gpio_init(void) 64{ 65 struct gpio_desc desc; 66 int ret; 67 68 ret = dm_gpio_lookup_name("gpio@1a_3", &desc); 69 if (ret) 70 return; 71 72 ret = dm_gpio_request(&desc, "bb_per_rst_b"); 73 if (ret) 74 return; 75 76 dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT); 77 dm_gpio_set_value(&desc, 0); 78 udelay(50); 79 dm_gpio_set_value(&desc, 1); 80} 81#else 82static inline void board_gpio_init(void) {} 83#endif 84 85#if IS_ENABLED(CONFIG_FEC_MXC) 86#include <miiphy.h> 87 88int board_phy_config(struct phy_device *phydev) 89{ 90 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f); 91 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8); 92 93 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05); 94 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100); 95 96 if (phydev->drv->config) 97 phydev->drv->config(phydev); 98 99 return 0; 100} 101#endif 102 103int checkboard(void) 104{ 105 puts("Board: iMX8QXP MEK\n"); 106 107 build_info(); 108 print_bootinfo(); 109 110 return 0; 111} 112 113int board_init(void) 114{ 115 board_gpio_init(); 116 117#ifdef CONFIG_IMX_SNVS_SEC_SC_AUTO 118 { 119 int ret = snvs_security_sc_init(); 120 121 if (ret) 122 return ret; 123 } 124#endif 125 126 return 0; 127} 128 129#ifdef CONFIG_OF_BOARD_SETUP 130int ft_board_setup(void *blob, struct bd_info *bd) 131{ 132 return 0; 133} 134#endif 135 136int board_mmc_get_env_dev(int devno) 137{ 138 return devno; 139} 140 141int board_late_init(void) 142{ 143 char *fdt_file; 144 bool m4_booted; 145 146#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG 147 env_set("board_name", "MEK"); 148 env_set("board_rev", "iMX8QXP"); 149#endif 150 151 fdt_file = env_get("fdt_file"); 152 m4_booted = m4_parts_booted(); 153 154 if (fdt_file && !strcmp(fdt_file, "undefined")) { 155 if (m4_booted) 156 env_set("fdt_file", "imx8qxp-mek-rpmsg.dtb"); 157 else 158 env_set("fdt_file", "imx8qxp-mek.dtb"); 159 } 160 161 return 0; 162} 163