1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
*/
#include <common.h>
#include <dm.h>
#include <env.h>
#include <init.h>
#include <log.h>
#include <misc.h>
#include <spl.h>
#include <syscon.h>
#include <u-boot/crc.h>
#include <usb.h>
#include <dm/pinctrl.h>
#include <dm/uclass-internal.h>
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/hardware.h>
#include <asm/arch-rockchip/grf_rk3399.h>
#include <asm/arch-rockchip/periph.h>
#include <asm/arch-rockchip/misc.h>
#include <power/regulator.h>
#include <u-boot/sha256.h>
static void setup_iodomain(void)
{
const u32 GRF_IO_VSEL_GPIO4CD_SHIFT = 3;
struct rk3399_grf_regs *grf =
syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
/*
* Set bit 3 in GRF_IO_VSEL so PCIE_RST# works (pin GPIO4_C6).
* Linux assumes that PCIE_RST# works out of the box as it probes
* PCIe before loading the iodomain driver.
*/
rk_setreg(&grf->io_vsel, 1 << GRF_IO_VSEL_GPIO4CD_SHIFT);
}
/*
* Swap mmc0 and mmc1 in boot_targets if booted from SD-Card.
*
* If bootsource is uSD-card we can assume that we want to use the
* SD-Card instead of the eMMC as first boot_target for distroboot.
* We only want to swap the defaults and not any custom environment a
* user has set. We exit early if a changed boot_targets environment
* is detected.
*/
static int setup_boottargets(void)
{
const char *boot_device =
ofnode_read_chosen_string("u-boot,spl-boot-device");
char *env_default, *env;
if (!boot_device) {
debug("%s: /chosen/u-boot,spl-boot-device not set\n",
__func__);
return -1;
}
debug("%s: booted from %s\n", __func__, boot_device);
env_default = env_get_default("boot_targets");
env = env_get("boot_targets");
if (!env) {
debug("%s: boot_targets does not exist\n", __func__);
return -1;
}
debug("%s: boot_targets current: %s - default: %s\n",
__func__, env, env_default);
if (strcmp(env_default, env) != 0) {
debug("%s: boot_targets not default, don't change it\n",
__func__);
return 0;
}
/*
* Only run, if booting from mmc1 (i.e. /mmc@fe320000) and
* only consider cases where the default boot-order first
* tries to boot from mmc0 (eMMC) and then from mmc1
* (i.e. external SD).
*
* In other words: the SD card will be moved to earlier in the
* order, if U-Boot was also loaded from the SD-card.
*/
if (!strcmp(boot_device, "/mmc@fe320000")) {
char *mmc0, *mmc1;
debug("%s: booted from SD-Card\n", __func__);
mmc0 = strstr(env, "mmc0");
mmc1 = strstr(env, "mmc1");
if (!mmc0 || !mmc1) {
debug("%s: only one mmc boot_target found\n", __func__);
return -1;
}
/*
* If mmc0 comes first in the boot order, we need to change
* the strings to make mmc1 first.
*/
if (mmc0 < mmc1) {
mmc0[3] = '1';
mmc1[3] = '0';
debug("%s: set boot_targets to: %s\n", __func__, env);
env_set("boot_targets", env);
}
}
return 0;
}
int misc_init_r(void)
{
const u32 cpuid_offset = 0x7;
const u32 cpuid_length = 0x10;
u8 cpuid[cpuid_length];
int ret;
ret = rockchip_cpuid_from_efuse(cpuid_offset, cpuid_length, cpuid);
if (ret)
return ret;
ret = rockchip_cpuid_set(cpuid, cpuid_length);
if (ret)
return ret;
ret = rockchip_setup_macaddr();
if (ret)
return ret;
setup_iodomain();
setup_boottargets();
return 0;
}
#ifdef CONFIG_SERIAL_TAG
void get_board_serial(struct tag_serialnr *serialnr)
{
char *serial_string;
u64 serial = 0;
serial_string = env_get("serial#");
if (serial_string)
serial = simple_strtoull(serial_string, NULL, 16);
serialnr->high = (u32)(serial >> 32);
serialnr->low = (u32)(serial & 0xffffffff);
}
#endif
|