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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-02-02 21:11:31 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-02-14 16:36:13 +0900 |
| commit | fec4816387a978e651da74c83bcdd5019a6d024c (patch) | |
| tree | 0f35c45af79851593de6e3ba1236b8ac84190f49 /arch/arm/mach-uniphier/boot-mode/boot-mode.c | |
| parent | a89be270e7eb42fca6c77bb25bd77971569f31ee (diff) | |
| download | u-boot-fec4816387a978e651da74c83bcdd5019a6d024c.tar.gz | |
ARM: uniphier: support USB boot mode for ProXstream2 / PH1-LD6b SoC
The USB boot code is too fat and complicated to be included in SPL
(at least for now). So, it was implemented as a separate project
(what we call USB-loader).
The expected boot sequence is as follows:
Boot ROM -> USB-loader -> SPL -> U-Boot proper
The USB-loader loads the SPL and U-Boot proper from a USB memory
onto the locked L2 cache. Then, SPL needs to copy the U-Boot proper
to DRAM, so this mode looks like a NOR boot from the view of SPL.
However, we want to distinguish between (genuine) NOR boot and USB
boot in some places.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/arm/mach-uniphier/boot-mode/boot-mode.c')
| -rw-r--r-- | arch/arm/mach-uniphier/boot-mode/boot-mode.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/mach-uniphier/boot-mode/boot-mode.c b/arch/arm/mach-uniphier/boot-mode/boot-mode.c index 0c5749badb..935e551472 100644 --- a/arch/arm/mach-uniphier/boot-mode/boot-mode.c +++ b/arch/arm/mach-uniphier/boot-mode/boot-mode.c @@ -11,7 +11,7 @@ #include "../soc-info.h" #include "boot-device.h" -u32 spl_boot_device(void) +u32 spl_boot_device_raw(void) { if (boot_is_swapped()) return BOOT_DEVICE_NOR; @@ -43,3 +43,12 @@ u32 spl_boot_device(void) return BOOT_DEVICE_NONE; } } + +u32 spl_boot_device(void) +{ + u32 ret; + + ret = spl_boot_device_raw(); + + return ret == BOOT_DEVICE_USB ? BOOT_DEVICE_NOR : ret; +} |