1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright 2019 NXP
4 */
5
6#include <common.h>
7#include <command.h>
8#include <cpu_func.h>
9#include <hang.h>
10#include <image.h>
11#include <init.h>
12#include <log.h>
13#include <spl.h>
14#include <asm/global_data.h>
15#include <asm/io.h>
16#include <asm/mach-imx/iomux-v3.h>
17#include <asm/arch/clock.h>
18#include <asm/arch/imx8mm_pins.h>
19#include <asm/arch/sys_proto.h>
20#include <asm/mach-imx/boot_mode.h>
21#include <asm/arch/ddr.h>
22#include <asm/sections.h>
23
24#include <dm/uclass.h>
25#include <dm/device.h>
26#include <dm/uclass-internal.h>
27#include <dm/device-internal.h>
28
29#include <power/pmic.h>
30#include <power/pca9450.h>
31
32DECLARE_GLOBAL_DATA_PTR;
33
34int spl_board_boot_device(enum boot_device boot_dev_spl)
35{
36	switch (boot_dev_spl) {
37	case USB_BOOT:
38		return BOOT_DEVICE_BOARD;
39	case SD2_BOOT:
40	case MMC2_BOOT:
41		return BOOT_DEVICE_MMC1;
42	case SD3_BOOT:
43	case MMC3_BOOT:
44		return BOOT_DEVICE_MMC2;
45	default:
46		return BOOT_DEVICE_NONE;
47	}
48}
49
50static void spl_dram_init(void)
51{
52	ddr_init(&dram_timing);
53}
54
55void spl_board_init(void)
56{
57	if (is_usb_boot())
58		puts("USB Boot\n");
59	else
60		puts("Normal Boot\n");
61}
62
63#ifdef CONFIG_SPL_LOAD_FIT
64int board_fit_config_name_match(const char *name)
65{
66	/* Just empty function now - can't decide what to choose */
67	debug("%s: %s\n", __func__, name);
68
69	return 0;
70}
71#endif
72
73static int power_init_board(void)
74{
75	struct udevice *dev;
76	int ret;
77
78	ret = pmic_get("pmic@25", &dev);
79	if (ret == -ENODEV) {
80		puts("No pmic\n");
81		return 0;
82	}
83	if (ret != 0)
84		return ret;
85
86	/* BUCKxOUT_DVS0/1 control BUCK123 output */
87	pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29);
88
89	/* Buck 1 DVS control through PMIC_STBY_REQ */
90	pmic_reg_write(dev, PCA9450_BUCK1CTRL, 0x59);
91
92	/* Set DVS1 to 0.8V for suspend */
93	pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS1, 0x10);
94
95	/* increase VDD_DRAM to 0.95V for 3GHz DDR */
96	pmic_reg_write(dev, PCA9450_BUCK3OUT_DVS0, 0x1C);
97
98	/* VDD_DRAM needs off in suspend, set B1_ENMODE=10 (ON by PMIC_ON_REQ = H && PMIC_STBY_REQ = L) */
99	pmic_reg_write(dev, PCA9450_BUCK3CTRL, 0x4a);
100
101	/* set VDD_SNVS_0V8 from default 0.85V */
102	pmic_reg_write(dev, PCA9450_LDO2CTRL, 0xC0);
103
104	/* set WDOG_B_CFG to cold reset */
105	pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1);
106
107	return 0;
108}
109
110void board_init_f(ulong dummy)
111{
112	struct udevice *dev;
113	int ret;
114
115	arch_cpu_init();
116
117	init_uart_clk(1);
118
119	timer_init();
120
121	/* Clear the BSS. */
122	memset(__bss_start, 0, __bss_end - __bss_start);
123
124	ret = spl_early_init();
125	if (ret) {
126		debug("spl_early_init() failed: %d\n", ret);
127		hang();
128	}
129
130	ret = uclass_get_device_by_name(UCLASS_CLK,
131					"clock-controller@30380000",
132					&dev);
133	if (ret < 0) {
134		printf("Failed to find clock node. Check device tree\n");
135		hang();
136	}
137
138	preloader_console_init();
139
140	enable_tzc380();
141
142	power_init_board();
143
144	/* DDR initialization */
145	spl_dram_init();
146
147	board_init_r(NULL, 0);
148}
149