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323d1f9d MY |
1 | /* |
2 | * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> | |
3 | * | |
4 | * SPDX-License-Identifier: GPL-2.0+ | |
5 | */ | |
6 | ||
7 | #include <common.h> | |
a55d9fee | 8 | #include <mmc.h> |
323d1f9d | 9 | #include <spl.h> |
569e4be1 | 10 | #include <linux/err.h> |
107b3fb4 MY |
11 | |
12 | #include "../sbc/sbc-regs.h" | |
13 | #include "../soc-info.h" | |
14 | #include "boot-device.h" | |
323d1f9d | 15 | |
fec48163 | 16 | u32 spl_boot_device_raw(void) |
323d1f9d MY |
17 | { |
18 | if (boot_is_swapped()) | |
19 | return BOOT_DEVICE_NOR; | |
20 | ||
21 | switch (uniphier_get_soc_type()) { | |
22 | #if defined(CONFIG_ARCH_UNIPHIER_PH1_SLD3) | |
23 | case SOC_UNIPHIER_PH1_SLD3: | |
24 | return ph1_sld3_boot_device(); | |
25 | #endif | |
26 | #if defined(CONFIG_ARCH_UNIPHIER_PH1_LD4) || \ | |
27 | defined(CONFIG_ARCH_UNIPHIER_PH1_PRO4) || \ | |
28 | defined(CONFIG_ARCH_UNIPHIER_PH1_SLD8) | |
29 | case SOC_UNIPHIER_PH1_LD4: | |
30 | case SOC_UNIPHIER_PH1_PRO4: | |
31 | case SOC_UNIPHIER_PH1_SLD8: | |
32 | return ph1_ld4_boot_device(); | |
28f40d4a MY |
33 | #endif |
34 | #if defined(CONFIG_ARCH_UNIPHIER_PH1_PRO5) | |
35 | case SOC_UNIPHIER_PH1_PRO5: | |
36 | return ph1_pro5_boot_device(); | |
019df879 MY |
37 | #endif |
38 | #if defined(CONFIG_ARCH_UNIPHIER_PROXSTREAM2) || \ | |
39 | defined(CONFIG_ARCH_UNIPHIER_PH1_LD6B) | |
40 | case SOC_UNIPHIER_PROXSTREAM2: | |
41 | case SOC_UNIPHIER_PH1_LD6B: | |
42 | return proxstream2_boot_device(); | |
323d1f9d MY |
43 | #endif |
44 | default: | |
45 | return BOOT_DEVICE_NONE; | |
46 | } | |
47 | } | |
fec48163 MY |
48 | |
49 | u32 spl_boot_device(void) | |
50 | { | |
51 | u32 ret; | |
52 | ||
53 | ret = spl_boot_device_raw(); | |
54 | ||
55 | return ret == BOOT_DEVICE_USB ? BOOT_DEVICE_NOR : ret; | |
56 | } | |
a55d9fee MY |
57 | |
58 | u32 spl_boot_mode(void) | |
59 | { | |
60 | struct mmc *mmc; | |
61 | ||
62 | /* | |
63 | * work around a bug in the Boot ROM of PH1-sLD3, LD4, Pro4, and sLD8: | |
64 | * | |
65 | * The boot ROM in these SoCs breaks the PARTITION_CONFIG [179] of | |
66 | * Extended CSD register; when switching to the Boot Partition 1, the | |
67 | * Boot ROM should issue the SWITCH command (CMD6) with Set Bits for | |
68 | * the Access Bits, but in fact it uses Write Byte for the Access Bits. | |
69 | * As a result, the BOOT_PARTITION_ENABLE field of the PARTITION_CONFIG | |
70 | * is lost. This bug was fixed for PH1-Pro5 and later SoCs. | |
71 | * | |
72 | * Fixup mmc->part_config here because it is used to determine the | |
73 | * partition which the U-Boot image is read from. | |
74 | */ | |
75 | mmc = find_mmc_device(0); | |
76 | mmc->part_config &= ~EXT_CSD_BOOT_PART_NUM(PART_ACCESS_MASK); | |
77 | mmc->part_config |= EXT_CSD_BOOT_PARTITION_ENABLE; | |
78 | ||
79 | return MMCSD_MODE_EMMCBOOT; | |
80 | } | |
569e4be1 MY |
81 | |
82 | #if defined(CONFIG_DM_MMC) && !defined(CONFIG_SPL_BUILD) | |
83 | static int find_first_mmc_device(void) | |
84 | { | |
85 | struct mmc *mmc; | |
86 | int i; | |
87 | ||
88 | for (i = 0; (mmc = find_mmc_device(i)); i++) { | |
89 | if (!mmc_init(mmc) && IS_MMC(mmc)) | |
90 | return i; | |
91 | } | |
92 | ||
93 | return -ENODEV; | |
94 | } | |
95 | ||
96 | static int do_mmcsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
97 | { | |
98 | int dev; | |
99 | ||
100 | dev = find_first_mmc_device(); | |
101 | if (dev < 0) | |
102 | return CMD_RET_FAILURE; | |
103 | ||
104 | setenv_ulong("mmc_first_dev", dev); | |
105 | return CMD_RET_SUCCESS; | |
106 | } | |
107 | ||
108 | U_BOOT_CMD( | |
109 | mmcsetn, 1, 1, do_mmcsetn, | |
110 | "Set the first MMC (not SD) dev number to \"mmc_first_dev\" enviroment", | |
111 | "" | |
112 | ); | |
113 | #endif |