1 // SPDX-License-Identifier: GPL-2.0+
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>
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>
25 DECLARE_GLOBAL_DATA_PTR;
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))
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))
37 static 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),
42 static void setup_iomux_uart(void)
44 imx8_iomux_setup_multiple_pads(uart0_pads, ARRAY_SIZE(uart0_pads));
47 int board_early_init_f(void)
49 sc_pm_clock_rate_t rate = SC_80MHZ;
52 /* Set UART0 clock root to 80 MHz */
53 ret = sc_pm_setup_uart(SC_R_UART_0, rate);
62 #if CONFIG_IS_ENABLED(DM_GPIO)
63 static void board_gpio_init(void)
65 struct gpio_desc desc;
68 ret = dm_gpio_lookup_name("gpio@1a_3", &desc);
72 ret = dm_gpio_request(&desc, "bb_per_rst_b");
76 dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT);
77 dm_gpio_set_value(&desc, 0);
79 dm_gpio_set_value(&desc, 1);
82 static inline void board_gpio_init(void) {}
85 #if IS_ENABLED(CONFIG_FEC_MXC)
88 int board_phy_config(struct phy_device *phydev)
90 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
91 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
93 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
94 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
96 if (phydev->drv->config)
97 phydev->drv->config(phydev);
105 puts("Board: iMX8QXP MEK\n");
117 #ifdef CONFIG_IMX_SNVS_SEC_SC_AUTO
119 int ret = snvs_security_sc_init();
130 * Board specific reset that is system reset.
137 #ifdef CONFIG_OF_BOARD_SETUP
138 int ft_board_setup(void *blob, struct bd_info *bd)
144 int board_mmc_get_env_dev(int devno)
149 int board_late_init(void)
154 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
155 env_set("board_name", "MEK");
156 env_set("board_rev", "iMX8QXP");
159 fdt_file = env_get("fdt_file");
160 m4_booted = m4_parts_booted();
162 if (fdt_file && !strcmp(fdt_file, "undefined")) {
164 env_set("fdt_file", "imx8qxp-mek-rpmsg.dtb");
166 env_set("fdt_file", "imx8qxp-mek.dtb");