1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright 2020 Toradex
4 */
5
6#include <common.h>
7#include <command.h>
8#include <image.h>
9#include <init.h>
10#include <log.h>
11#include <asm/arch/clock.h>
12#include <asm/arch/ddr.h>
13#include <asm/arch/imx8mm_pins.h>
14#include <asm/arch/sys_proto.h>
15#include <asm/global_data.h>
16#include <asm/io.h>
17#include <asm/mach-imx/boot_mode.h>
18#include <asm/mach-imx/iomux-v3.h>
19#include <asm/sections.h>
20#include <cpu_func.h>
21#include <dm/device.h>
22#include <dm/device-internal.h>
23#include <dm/uclass.h>
24#include <dm/uclass-internal.h>
25#include <hang.h>
26#include <i2c.h>
27#include <power/pca9450.h>
28#include <power/pmic.h>
29#include <spl.h>
30
31DECLARE_GLOBAL_DATA_PTR;
32
33#define I2C_PMIC_BUS_ID        1
34
35int spl_board_boot_device(enum boot_device boot_dev_spl)
36{
37	switch (boot_dev_spl) {
38	case MMC1_BOOT: /* eMMC */
39		return BOOT_DEVICE_MMC1;
40	case SD2_BOOT: /* SD card */
41	case MMC2_BOOT:
42		return BOOT_DEVICE_MMC2;
43	case USB_BOOT:
44		return BOOT_DEVICE_BOARD;
45	default:
46		return BOOT_DEVICE_NONE;
47	}
48}
49
50void spl_dram_init(void)
51{
52	ddr_init(&dram_timing);
53}
54
55void spl_board_init(void)
56{
57	arch_misc_init();
58}
59
60#ifdef CONFIG_SPL_LOAD_FIT
61int board_fit_config_name_match(const char *name)
62{
63	/* Just empty function now - can't decide what to choose */
64	debug("%s: %s\n", __func__, name);
65
66	return 0;
67}
68#endif
69
70__weak void board_early_init(void)
71{
72	init_uart_clk(0);
73}
74
75int power_init_board(void)
76{
77	struct udevice *dev;
78	int ret;
79
80	if (IS_ENABLED(CONFIG_SPL_DM_PMIC_PCA9450)) {
81		ret = pmic_get("pmic@25", &dev);
82		if (ret == -ENODEV) {
83			puts("No pmic found\n");
84			return ret;
85		}
86
87		if (ret != 0)
88			return ret;
89
90		/* BUCKxOUT_DVS0/1 control BUCK123 output, clear PRESET_EN */
91		pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29);
92
93		/* increase VDD_DRAM to 0.975v for 1.5Ghz DDR */
94		pmic_reg_write(dev, PCA9450_BUCK3OUT_DVS0, 0x1c);
95
96		pmic_reg_write(dev, PCA9450_CONFIG2, 0x1);
97
98		return 0;
99	}
100
101	return 0;
102}
103
104void board_init_f(ulong dummy)
105{
106	struct udevice *dev;
107	int ret;
108
109	arch_cpu_init();
110
111	board_early_init();
112
113	timer_init();
114
115	/* Clear the BSS. */
116	memset(__bss_start, 0, __bss_end - __bss_start);
117
118	ret = spl_early_init();
119	if (ret) {
120		debug("spl_early_init() failed: %d\n", ret);
121		hang();
122	}
123
124	ret = uclass_get_device_by_name(UCLASS_CLK,
125					"clock-controller@30380000",
126					&dev);
127	if (ret < 0) {
128		printf("Failed to find clock node. Check device tree\n");
129		hang();
130	}
131
132	preloader_console_init();
133
134	enable_tzc380();
135
136	power_init_board();
137
138	/* DDR initialization */
139	spl_dram_init();
140
141	board_init_r(NULL, 0);
142}
143