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https://github.com/AsahiLinux/u-boot
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ARM: uniphier: add eMMC boot support
Export device nodes needed for eMMC boot (eMMC node, pinctrl, and clock) to the SPL DTB. CONFIG_SUPPORT_EMMC_BOOT is also necessary to use "mmc partconf" command. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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5 changed files with 64 additions and 0 deletions
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@ -95,6 +95,14 @@
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u-boot,dm-pre-reloc;
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};
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&mio {
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u-boot,dm-pre-reloc;
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};
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&emmc {
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u-boot,dm-pre-reloc;
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};
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&pinctrl {
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u-boot,dm-pre-reloc;
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};
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@ -102,3 +110,7 @@
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&pinctrl_uart0 {
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u-boot,dm-pre-reloc;
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};
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&pinctrl_emmc {
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u-boot,dm-pre-reloc;
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};
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@ -75,6 +75,14 @@
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u-boot,dm-pre-reloc;
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};
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&mio {
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u-boot,dm-pre-reloc;
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};
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&emmc {
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u-boot,dm-pre-reloc;
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};
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&pinctrl {
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u-boot,dm-pre-reloc;
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};
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@ -82,3 +90,7 @@
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&pinctrl_uart2 {
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u-boot,dm-pre-reloc;
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};
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&pinctrl_emmc {
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u-boot,dm-pre-reloc;
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};
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@ -60,6 +60,14 @@
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u-boot,dm-pre-reloc;
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};
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&mio {
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u-boot,dm-pre-reloc;
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};
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&emmc {
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u-boot,dm-pre-reloc;
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};
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&pinctrl {
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u-boot,dm-pre-reloc;
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};
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@ -67,3 +75,7 @@
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&pinctrl_uart2 {
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u-boot,dm-pre-reloc;
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};
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&pinctrl_emmc {
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u-boot,dm-pre-reloc;
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};
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@ -5,6 +5,7 @@
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*/
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#include <common.h>
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#include <mmc.h>
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#include <spl.h>
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#include "../sbc/sbc-regs.h"
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@ -52,3 +53,27 @@ u32 spl_boot_device(void)
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return ret == BOOT_DEVICE_USB ? BOOT_DEVICE_NOR : ret;
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}
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u32 spl_boot_mode(void)
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{
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struct mmc *mmc;
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/*
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* work around a bug in the Boot ROM of PH1-sLD3, LD4, Pro4, and sLD8:
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*
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* The boot ROM in these SoCs breaks the PARTITION_CONFIG [179] of
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* Extended CSD register; when switching to the Boot Partition 1, the
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* Boot ROM should issue the SWITCH command (CMD6) with Set Bits for
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* the Access Bits, but in fact it uses Write Byte for the Access Bits.
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* As a result, the BOOT_PARTITION_ENABLE field of the PARTITION_CONFIG
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* is lost. This bug was fixed for PH1-Pro5 and later SoCs.
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*
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* Fixup mmc->part_config here because it is used to determine the
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* partition which the U-Boot image is read from.
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*/
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mmc = find_mmc_device(0);
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mmc->part_config &= ~EXT_CSD_BOOT_PART_NUM(PART_ACCESS_MASK);
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mmc->part_config |= EXT_CSD_BOOT_PARTITION_ENABLE;
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return MMCSD_MODE_EMMCBOOT;
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}
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@ -148,6 +148,7 @@
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/* SD/MMC */
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#define CONFIG_CMD_MMC
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#define CONFIG_SUPPORT_EMMC_BOOT
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#define CONFIG_GENERIC_MMC
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/* memtest works on */
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@ -263,6 +264,7 @@
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#define CONFIG_SPL_FRAMEWORK
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#define CONFIG_SPL_SERIAL_SUPPORT
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#define CONFIG_SPL_NAND_SUPPORT
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#define CONFIG_SPL_MMC_SUPPORT
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#define CONFIG_SPL_LIBCOMMON_SUPPORT /* for mem_malloc_init */
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#define CONFIG_SPL_LIBGENERIC_SUPPORT
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@ -270,6 +272,7 @@
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#define CONFIG_SPL_BOARD_INIT
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#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x10000
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#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x80
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#define CONFIG_SPL_MAX_FOOTPRINT 0x10000
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