1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2017-2018 NXP
4 * Copyright (C) 2019 Oliver Graute <oliver.graute@kococonnector.com>
5 */
6
7 #include <common.h>
8 #include <cpu_func.h>
9 #include <env.h>
10 #include <errno.h>
11 #include <init.h>
12 #include <asm/global_data.h>
13 #include <linux/delay.h>
14 #include <linux/libfdt.h>
15 #include <asm/io.h>
16 #include <asm/gpio.h>
17 #include <asm/arch/clock.h>
18 #include <asm/arch/sci/sci.h>
19 #include <asm/arch/imx8-pins.h>
20 #include <asm/arch/iomux.h>
21 #include <asm/arch/sys_proto.h>
22
23 DECLARE_GLOBAL_DATA_PTR;
24
25 #define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
26 (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
27 (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
28 (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
29
30 static iomux_cfg_t uart0_pads[] = {
31 SC_P_UART0_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
32 SC_P_UART0_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
33 };
34
setup_iomux_uart(void)35 static void setup_iomux_uart(void)
36 {
37 imx8_iomux_setup_multiple_pads(uart0_pads, ARRAY_SIZE(uart0_pads));
38 }
39
board_early_init_f(void)40 int board_early_init_f(void)
41 {
42 sc_pm_clock_rate_t rate = SC_80MHZ;
43 int ret;
44
45 /* Set UART0 clock root to 80 MHz */
46 ret = sc_pm_setup_uart(SC_R_UART_0, rate);
47 if (ret)
48 return ret;
49
50 setup_iomux_uart();
51
52 /* This is needed to because Kernel do not Power Up DC_0 */
53 sc_pm_set_resource_power_mode(-1, SC_R_DC_0, SC_PM_PW_MODE_ON);
54 sc_pm_set_resource_power_mode(-1, SC_R_GPIO_5, SC_PM_PW_MODE_ON);
55
56 return 0;
57 }
58
59 #if IS_ENABLED(CONFIG_FEC_MXC)
60 #include <miiphy.h>
61
board_phy_config(struct phy_device * phydev)62 int board_phy_config(struct phy_device *phydev)
63 {
64 #ifdef CONFIG_FEC_ENABLE_MAX7322
65 u8 value;
66
67 /* This is needed to drive the pads to 1.8V instead of 1.5V */
68 i2c_set_bus_num(CONFIG_MAX7322_I2C_BUS);
69
70 if (!i2c_probe(CONFIG_MAX7322_I2C_ADDR)) {
71 /* Write 0x1 to enable O0 output, this device has no addr */
72 /* hence addr length is 0 */
73 value = 0x1;
74 if (dm_i2c_write(CONFIG_MAX7322_I2C_ADDR, 0, 0, &value, 1))
75 printf("MAX7322 write failed\n");
76 } else {
77 printf("MAX7322 Not found\n");
78 }
79 mdelay(1);
80 #endif
81
82 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
83 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
84
85 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);
86 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);
87 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
88 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
89
90 if (phydev->drv->config)
91 phydev->drv->config(phydev);
92
93 return 0;
94 }
95 #endif
96
checkboard(void)97 int checkboard(void)
98 {
99 puts("Board: ROM-7720-A1 4GB\n");
100
101 build_info();
102 print_bootinfo();
103
104 return 0;
105 }
106
board_init(void)107 int board_init(void)
108 {
109 /* Power up base board */
110 sc_pm_set_resource_power_mode(-1, SC_R_BOARD_R1, SC_PM_PW_MODE_ON);
111
112 return 0;
113 }
114
115 /*
116 * Board specific reset that is system reset.
117 */
reset_cpu(ulong addr)118 void reset_cpu(ulong addr)
119 {
120 /* TODO */
121 }
122
board_mmc_get_env_dev(int devno)123 int board_mmc_get_env_dev(int devno)
124 {
125 return devno;
126 }
127
board_late_init(void)128 int board_late_init(void)
129 {
130 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
131 env_set("board_name", "ROM-7720-A1");
132 env_set("board_rev", "iMX8QM");
133 #endif
134
135 env_set("sec_boot", "no");
136 #ifdef CONFIG_AHAB_BOOT
137 env_set("sec_boot", "yes");
138 #endif
139
140 return 0;
141 }
142