diff options
author | Tom Rini <trini@konsulko.com> | 2017-02-23 10:12:41 -0500 |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2017-02-23 10:12:41 -0500 |
commit | d38de7cb03adf88e18c05d840c2528b7a5af2f9b (patch) | |
tree | 35be69932e53e4c58260af58ae841a3d1a2523b6 /arch/arm/mach-uniphier/mmc-boot-mode.c | |
parent | b24cf8540a85a9bf97975aadd6a7542f166c78a3 (diff) | |
parent | bc647958047cd03193e19cd8c08a6771fea828b7 (diff) |
Merge branch 'master' of git://git.denx.de/u-boot-uniphier
- Fix regressions caused by the previous reworks
- Add pin configuration support
- Re-work SPL code
- Update DRAM and PLL setup code
- Enable needed configs, disable unneeded configs
Diffstat (limited to 'arch/arm/mach-uniphier/mmc-boot-mode.c')
-rw-r--r-- | arch/arm/mach-uniphier/mmc-boot-mode.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/mmc-boot-mode.c b/arch/arm/mach-uniphier/mmc-boot-mode.c new file mode 100644 index 00000000000..d60c578ce7f --- /dev/null +++ b/arch/arm/mach-uniphier/mmc-boot-mode.c @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <mmc.h> +#include <spl.h> + +u32 spl_boot_mode(const u32 boot_device) +{ + struct mmc *mmc; + + /* + * work around a bug in the Boot ROM of PH1-sLD3, LD4, Pro4, and sLD8: + * + * The boot ROM in these SoCs breaks the PARTITION_CONFIG [179] of + * Extended CSD register; when switching to the Boot Partition 1, the + * Boot ROM should issue the SWITCH command (CMD6) with Set Bits for + * the Access Bits, but in fact it uses Write Byte for the Access Bits. + * As a result, the BOOT_PARTITION_ENABLE field of the PARTITION_CONFIG + * is lost. This bug was fixed for PH1-Pro5 and later SoCs. + * + * Fixup mmc->part_config here because it is used to determine the + * partition which the U-Boot image is read from. + */ + mmc = find_mmc_device(0); + mmc->part_config &= ~EXT_CSD_BOOT_PART_NUM(PART_ACCESS_MASK); + mmc->part_config |= EXT_CSD_BOOT_PARTITION_ENABLE; + + return MMCSD_MODE_EMMCBOOT; +} |