139f416d1f090d4eb9bdb8e47307d423e34d8325
[oweals/u-boot.git] / board / freescale / imx8qm_mek / imx8qm_mek.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2018 NXP
4  */
5
6 #include <common.h>
7 #include <env.h>
8 #include <errno.h>
9 #include <init.h>
10 #include <linux/libfdt.h>
11 #include <fdt_support.h>
12 #include <asm/io.h>
13 #include <asm/gpio.h>
14 #include <asm/arch/clock.h>
15 #include <asm/arch/sci/sci.h>
16 #include <asm/arch/imx8-pins.h>
17 #include <asm/arch/iomux.h>
18 #include <asm/arch/sys_proto.h>
19
20 DECLARE_GLOBAL_DATA_PTR;
21
22 #define UART_PAD_CTRL   ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
23                          (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
24                          (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
25                          (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
26
27 static iomux_cfg_t uart0_pads[] = {
28         SC_P_UART0_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
29         SC_P_UART0_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
30 };
31
32 static void setup_iomux_uart(void)
33 {
34         imx8_iomux_setup_multiple_pads(uart0_pads, ARRAY_SIZE(uart0_pads));
35 }
36
37 int board_early_init_f(void)
38 {
39         sc_pm_clock_rate_t rate = SC_80MHZ;
40         int ret;
41
42         /* Set UART0 clock root to 80 MHz */
43         ret = sc_pm_setup_uart(SC_R_UART_0, rate);
44         if (ret)
45                 return ret;
46
47         setup_iomux_uart();
48
49         sc_pm_set_resource_power_mode(-1, SC_R_GPIO_5, SC_PM_PW_MODE_ON);
50
51         return 0;
52 }
53
54 #if CONFIG_IS_ENABLED(DM_GPIO)
55 static void board_gpio_init(void)
56 {
57         /* TODO */
58 }
59 #else
60 static inline void board_gpio_init(void) {}
61 #endif
62
63 #if IS_ENABLED(CONFIG_FEC_MXC)
64 #include <miiphy.h>
65
66 int board_phy_config(struct phy_device *phydev)
67 {
68         phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
69         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
70
71         phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);
72         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);
73         phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
74         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
75
76         if (phydev->drv->config)
77                 phydev->drv->config(phydev);
78
79         return 0;
80 }
81 #endif
82
83 int checkboard(void)
84 {
85         puts("Board: iMX8QM MEK\n");
86
87         build_info();
88         print_bootinfo();
89
90         return 0;
91 }
92
93 int board_init(void)
94 {
95         /* Power up base board */
96         sc_pm_set_resource_power_mode(-1, SC_R_BOARD_R1, SC_PM_PW_MODE_ON);
97
98         board_gpio_init();
99
100         return 0;
101 }
102
103 void detail_board_ddr_info(void)
104 {
105         puts("\nDDR    ");
106 }
107
108 /*
109  * Board specific reset that is system reset.
110  */
111 void reset_cpu(ulong addr)
112 {
113         /* TODO */
114 }
115
116 #ifdef CONFIG_OF_BOARD_SETUP
117 int ft_board_setup(void *blob, bd_t *bd)
118 {
119         return 0;
120 }
121 #endif
122
123 int board_mmc_get_env_dev(int devno)
124 {
125         return devno;
126 }
127
128 int board_late_init(void)
129 {
130 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
131         env_set("board_name", "MEK");
132         env_set("board_rev", "iMX8QM");
133 #endif
134
135         return 0;
136 }