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/libfdt.h>
13 #include <fdt_support.h>
14 #include <asm/io.h>
15 #include <asm/gpio.h>
16 #include <asm/arch/clock.h>
17 #include <asm/arch/sci/sci.h>
18 #include <asm/arch/imx8-pins.h>
19 #include <asm/arch/iomux.h>
20 #include <asm/arch/sys_proto.h>
21
22 DECLARE_GLOBAL_DATA_PTR;
23
24 #define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
25 (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
26 (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
27 (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
28
29 static iomux_cfg_t uart0_pads[] = {
30 SC_P_UART0_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
31 SC_P_UART0_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
32 };
33
setup_iomux_uart(void)34 static void setup_iomux_uart(void)
35 {
36 imx8_iomux_setup_multiple_pads(uart0_pads, ARRAY_SIZE(uart0_pads));
37 }
38
board_early_init_f(void)39 int board_early_init_f(void)
40 {
41 sc_pm_clock_rate_t rate = SC_80MHZ;
42 int ret;
43
44 /* Set UART0 clock root to 80 MHz */
45 ret = sc_pm_setup_uart(SC_R_UART_0, rate);
46 if (ret)
47 return ret;
48
49 setup_iomux_uart();
50
51 sc_pm_set_resource_power_mode(-1, SC_R_GPIO_5, SC_PM_PW_MODE_ON);
52
53 return 0;
54 }
55
56 #if CONFIG_IS_ENABLED(DM_GPIO)
board_gpio_init(void)57 static void board_gpio_init(void)
58 {
59 /* TODO */
60 }
61 #else
board_gpio_init(void)62 static inline void board_gpio_init(void) {}
63 #endif
64
65 #if IS_ENABLED(CONFIG_FEC_MXC)
66 #include <miiphy.h>
67
board_phy_config(struct phy_device * phydev)68 int board_phy_config(struct phy_device *phydev)
69 {
70 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
71 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
72
73 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);
74 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);
75 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
76 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
77
78 if (phydev->drv->config)
79 phydev->drv->config(phydev);
80
81 return 0;
82 }
83 #endif
84
checkboard(void)85 int checkboard(void)
86 {
87 puts("Board: iMX8QM MEK\n");
88
89 build_info();
90 print_bootinfo();
91
92 return 0;
93 }
94
board_init(void)95 int board_init(void)
96 {
97 /* Power up base board */
98 sc_pm_set_resource_power_mode(-1, SC_R_BOARD_R1, SC_PM_PW_MODE_ON);
99
100 board_gpio_init();
101
102 return 0;
103 }
104
105 /*
106 * Board specific reset that is system reset.
107 */
reset_cpu(ulong addr)108 void reset_cpu(ulong addr)
109 {
110 /* TODO */
111 }
112
113 #ifdef CONFIG_OF_BOARD_SETUP
ft_board_setup(void * blob,struct bd_info * bd)114 int ft_board_setup(void *blob, struct bd_info *bd)
115 {
116 return 0;
117 }
118 #endif
119
board_mmc_get_env_dev(int devno)120 int board_mmc_get_env_dev(int devno)
121 {
122 return devno;
123 }
124
board_late_init(void)125 int board_late_init(void)
126 {
127 char *fdt_file;
128 bool m4_booted;
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 fdt_file = env_get("fdt_file");
136 m4_booted = m4_parts_booted();
137
138 if (fdt_file && !strcmp(fdt_file, "undefined")) {
139 if (m4_booted)
140 env_set("fdt_file", "imx8qm-mek-rpmsg.dtb");
141 else
142 env_set("fdt_file", "imx8qm-mek.dtb");
143 }
144
145 return 0;
146 }
147