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
|
/*
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <spl.h>
#include <linux/io.h>
#include <asm/processor.h>
#include "../soc-info.h"
void spl_board_announce_boot_device(void)
{
printf("eMMC");
}
struct uniphier_romfunc_table {
void *mmc_send_cmd;
void *mmc_card_blockaddr;
void *mmc_switch_part;
void *mmc_load_image;
};
static const struct uniphier_romfunc_table uniphier_ld11_romfunc_table = {
.mmc_send_cmd = (void *)0x20d8,
.mmc_card_blockaddr = (void *)0x1b68,
.mmc_switch_part = (void *)0x1c38,
.mmc_load_image = (void *)0x2e48,
};
static const struct uniphier_romfunc_table uniphier_ld20_romfunc_table = {
.mmc_send_cmd = (void *)0x2130,
.mmc_card_blockaddr = (void *)0x1ba0,
.mmc_switch_part = (void *)0x1c70,
.mmc_load_image = (void *)0x2ef0,
};
int uniphier_rom_get_mmc_funcptr(int (**send_cmd)(u32, u32),
int (**card_blockaddr)(u32),
int (**switch_part)(int),
int (**load_image)(u32, uintptr_t, u32))
{
const struct uniphier_romfunc_table *table;
switch (uniphier_get_soc_type()) {
case SOC_UNIPHIER_LD11:
table = &uniphier_ld11_romfunc_table;
break;
case SOC_UNIPHIER_LD20:
table = &uniphier_ld20_romfunc_table;
break;
default:
printf("unsupported SoC\n");
return -EINVAL;
}
*send_cmd = table->mmc_send_cmd;
*card_blockaddr = table->mmc_card_blockaddr;
*switch_part = table->mmc_switch_part;
*load_image = table->mmc_load_image;
return 0;
}
static int spl_board_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
int (*send_cmd)(u32 cmd, u32 arg);
int (*card_blockaddr)(u32 rca);
int (*switch_part)(int part);
int (*load_image)(u32 dev_addr, uintptr_t load_addr, u32 block_cnt);
u32 dev_addr = CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR;
const u32 rca = 0x1000; /* RCA assigned by Boot ROM */
int ret;
ret = uniphier_rom_get_mmc_funcptr(&send_cmd, &card_blockaddr,
&switch_part, &load_image);
if (ret)
return ret;
/*
* deselect card before SEND_CSD command.
* Do not check the return code. It fails, but it is OK.
*/
(*send_cmd)(0x071a0000, 0); /* CMD7 (arg=0) */
/* reset CMD Line */
writeb(0x6, 0x5a00022f);
while (readb(0x5a00022f))
cpu_relax();
ret = (*card_blockaddr)(rca);
if (ret) {
debug("card is block addressing\n");
} else {
debug("card is byte addressing\n");
dev_addr *= 512;
}
ret = (*send_cmd)(0x071a0000, rca << 16); /* CMD7: select card again */
if (ret)
printf("failed to select card\n");
ret = (*switch_part)(1); /* Switch to Boot Partition 1 */
if (ret)
printf("failed to switch partition\n");
ret = (*load_image)(dev_addr, CONFIG_SYS_TEXT_BASE, 1);
if (ret) {
printf("failed to load image\n");
return ret;
}
ret = spl_parse_image_header(spl_image, (void *)CONFIG_SYS_TEXT_BASE);
if (ret)
return ret;
ret = (*load_image)(dev_addr, spl_image->load_addr,
spl_image->size / 512);
if (ret) {
printf("failed to load image\n");
return ret;
}
return 0;
}
SPL_LOAD_IMAGE_METHOD(0, BOOT_DEVICE_BOARD, spl_board_load_image);
|
