2 * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <linux/err.h>
12 #include "../sbc/sbc-regs.h"
13 #include "../soc-info.h"
14 #include "boot-device.h"
16 u32 spl_boot_device_raw(void)
18 if (boot_is_swapped())
19 return BOOT_DEVICE_NOR;
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();
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();
34 #if defined(CONFIG_ARCH_UNIPHIER_PH1_PRO5)
35 case SOC_UNIPHIER_PH1_PRO5:
36 return ph1_pro5_boot_device();
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();
45 return BOOT_DEVICE_NONE;
49 u32 spl_boot_device(void)
53 ret = spl_boot_device_raw();
55 return ret == BOOT_DEVICE_USB ? BOOT_DEVICE_NOR : ret;
58 u32 spl_boot_mode(void)
63 * work around a bug in the Boot ROM of PH1-sLD3, LD4, Pro4, and sLD8:
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.
72 * Fixup mmc->part_config here because it is used to determine the
73 * partition which the U-Boot image is read from.
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;
79 return MMCSD_MODE_EMMCBOOT;
82 #if defined(CONFIG_DM_MMC) && !defined(CONFIG_SPL_BUILD)
83 static int find_first_mmc_device(void)
88 for (i = 0; (mmc = find_mmc_device(i)); i++) {
89 if (!mmc_init(mmc) && IS_MMC(mmc))
96 int mmc_get_env_dev(void)
98 return find_first_mmc_device();
101 static int do_mmcsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
105 dev = find_first_mmc_device();
107 return CMD_RET_FAILURE;
109 setenv_ulong("mmc_first_dev", dev);
110 return CMD_RET_SUCCESS;
114 mmcsetn, 1, 1, do_mmcsetn,
115 "Set the first MMC (not SD) dev number to \"mmc_first_dev\" enviroment",