1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2020 Toradex
10 #include <asm/arch/clock.h>
11 #include <asm/arch/imx8-pins.h>
12 #include <asm/arch/iomux.h>
13 #include <asm/arch/sci/sci.h>
14 #include <asm/arch/sys_proto.h>
15 #include <asm/global_data.h>
20 #include <linux/libfdt.h>
22 #include "../common/tdx-cfg-block.h"
24 DECLARE_GLOBAL_DATA_PTR;
26 #define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
27 (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
28 (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
29 (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
31 static iomux_cfg_t uart1_pads[] = {
32 SC_P_UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
33 SC_P_UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
36 static void setup_iomux_uart(void)
38 imx8_iomux_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
41 void board_mem_get_layout(u64 *phys_sdram_1_start,
42 u64 *phys_sdram_1_size,
43 u64 *phys_sdram_2_start,
44 u64 *phys_sdram_2_size)
46 u32 is_dualx = 0, val = 0;
47 sc_err_t scierr = sc_misc_otp_fuse_read(-1, 6, &val);
49 if (scierr == SC_ERR_NONE) {
50 /* DX has two A35 cores disabled */
51 is_dualx = (val & 0xf) != 0x0;
54 *phys_sdram_1_start = PHYS_SDRAM_1;
56 /* Our DX based SKUs only have 1 GB RAM */
57 *phys_sdram_1_size = SZ_1G;
59 *phys_sdram_1_size = PHYS_SDRAM_1_SIZE;
60 *phys_sdram_2_start = PHYS_SDRAM_2;
61 *phys_sdram_2_size = PHYS_SDRAM_2_SIZE;
64 int board_early_init_f(void)
66 sc_pm_clock_rate_t rate;
70 * This works around that having only UART3 up the baudrate is 1.2M
71 * instead of 115.2k. Set UART0 clock root to 80 MHz
74 err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
75 if (err != SC_ERR_NONE)
78 /* Set UART3 clock root to 80 MHz and enable it */
80 err = sc_pm_setup_uart(SC_R_UART_1, rate);
81 if (err != SC_ERR_NONE)
89 #if IS_ENABLED(CONFIG_DM_GPIO)
90 static void board_gpio_init(void)
95 static inline void board_gpio_init(void) {}
98 #if IS_ENABLED(CONFIG_FEC_MXC)
101 int board_phy_config(struct phy_device *phydev)
103 if (phydev->drv->config)
104 phydev->drv->config(phydev);
112 puts("Model: Toradex Apalis iMX8X\n");
128 * Board specific reset that is system reset.
130 void reset_cpu(ulong addr)
135 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
136 int ft_board_setup(void *blob, struct bd_info *bd)
138 return ft_common_board_setup(blob, bd);
142 int board_mmc_get_env_dev(int devno)
147 int board_late_init(void)
149 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
150 /* TODO move to common */
151 env_set("board_name", "Apalis iMX8X");