Prepare v2023.10
[platform/kernel/u-boot.git] / board / toradex / colibri-imx8x / colibri-imx8x.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2019 Toradex
4  */
5
6 #include <common.h>
7 #include <cpu_func.h>
8 #include <init.h>
9 #include <asm/global_data.h>
10
11 #include <asm/arch/clock.h>
12 #include <asm/arch/imx8-pins.h>
13 #include <asm/arch/iomux.h>
14 #include <firmware/imx/sci/sci.h>
15 #include <asm/arch/snvs_security_sc.h>
16 #include <asm/arch/sys_proto.h>
17 #include <asm/gpio.h>
18 #include <asm/io.h>
19 #include <env.h>
20 #include <errno.h>
21 #include <linux/libfdt.h>
22
23 #include "../common/tdx-cfg-block.h"
24
25 DECLARE_GLOBAL_DATA_PTR;
26
27 #define UART_PAD_CTRL   ((SC_PAD_CONFIG_OUT_IN << 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 static iomux_cfg_t uart3_pads[] = {
33         SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
34         SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
35         /* Transceiver FORCEOFF# signal, mux to use pull-up */
36         SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | MUX_PAD_CTRL(UART_PAD_CTRL),
37 };
38
39 static void setup_iomux_uart(void)
40 {
41         imx8_iomux_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
42 }
43
44 static int is_imx8dx(void)
45 {
46         u32 val = 0;
47         int sc_err = sc_misc_otp_fuse_read(-1, 6, &val);
48
49         if (sc_err) {
50                 /* DX has two A35 cores disabled */
51                 return (val & 0xf) != 0x0;
52         }
53         return false;
54 }
55
56 void board_mem_get_layout(u64 *phys_sdram_1_start,
57                           u64 *phys_sdram_1_size,
58                           u64 *phys_sdram_2_start,
59                           u64 *phys_sdram_2_size)
60 {
61         *phys_sdram_1_start = PHYS_SDRAM_1;
62         if (is_imx8dx())
63                 /* Our DX based SKUs only have 1 GB RAM */
64                 *phys_sdram_1_size = SZ_1G;
65         else
66                 *phys_sdram_1_size = PHYS_SDRAM_1_SIZE;
67         *phys_sdram_2_start = PHYS_SDRAM_2;
68         *phys_sdram_2_size = PHYS_SDRAM_2_SIZE;
69 }
70
71 int board_early_init_f(void)
72 {
73         sc_pm_clock_rate_t rate;
74         int err;
75
76         /*
77          * This works around that having only UART3 up the baudrate is 1.2M
78          * instead of 115.2k. Set UART0 clock root to 80 MHz
79          */
80         rate = 80000000;
81         err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
82         if (err)
83                 return 0;
84
85         /* Set UART3 clock root to 80 MHz and enable it */
86         rate = SC_80MHZ;
87         err = sc_pm_setup_uart(SC_R_UART_3, rate);
88         if (err)
89                 return 0;
90
91         setup_iomux_uart();
92
93         return 0;
94 }
95
96 #if IS_ENABLED(CONFIG_DM_GPIO)
97 static void board_gpio_init(void)
98 {
99         /* TODO */
100 }
101 #else
102 static inline void board_gpio_init(void) {}
103 #endif
104
105 #if IS_ENABLED(CONFIG_FEC_MXC)
106 #include <miiphy.h>
107
108 int board_phy_config(struct phy_device *phydev)
109 {
110         if (phydev->drv->config)
111                 phydev->drv->config(phydev);
112
113         return 0;
114 }
115 #endif
116
117 int checkboard(void)
118 {
119         puts("Model: Toradex Colibri iMX8X\n");
120
121         build_info();
122         print_bootinfo();
123
124         return 0;
125 }
126
127 static void select_dt_from_module_version(void)
128 {
129         /*
130          * The dtb filename is constructed from ${soc}-colibri-${fdt_board}.dtb.
131          * Set soc depending on the used SoC.
132          */
133         if (is_imx8dx())
134                 env_set("soc", "imx8dx");
135         else
136                 env_set("soc", "imx8qxp");
137 }
138
139 int board_init(void)
140 {
141         board_gpio_init();
142
143         if (IS_ENABLED(CONFIG_IMX_SNVS_SEC_SC_AUTO)) {
144                 int ret = snvs_security_sc_init();
145
146                 if (ret)
147                         return ret;
148         }
149
150         return 0;
151 }
152
153 /*
154  * Board specific reset that is system reset.
155  */
156 void reset_cpu(void)
157 {
158         /* TODO */
159 }
160
161 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
162 int ft_board_setup(void *blob, struct bd_info *bd)
163 {
164         return ft_common_board_setup(blob, bd);
165 }
166 #endif
167
168 int board_mmc_get_env_dev(int devno)
169 {
170         return devno;
171 }
172
173 int board_late_init(void)
174 {
175 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
176 /* TODO move to common */
177         env_set("board_name", "Colibri iMX8QXP");
178         env_set("board_rev", "v1.0");
179 #endif
180
181         build_info();
182
183         select_dt_from_module_version();
184
185         return 0;
186 }