[U-Boot] [PATCH v2] malta: use unmapped flash base address

[Daniel Schwierzeck]

2013/11/12 Gabor Juhos <juhosg at openwrt.org>:
> The physical base address of the NOR flash is 0x1e000000
> on the Malta boards. The hardware also maps the first 4MiB
> of the flash into the 0x1fc00000-0x1fffffff range.
>
> Currently, U-Boot uses the mapped address to access the
> flash, which does not work in recent qemu versions.
>
> Since commit a427338b222b43197c2776cbc996936df0302f51
> (mips_malta: correct reading MIPS revision at 0x1fc00010)
> writing to the mapped address space causes a CPU exception.
> Due to the exception, U-Boot hangs during boot when it tries
> to detect the CFI flash chip.
>
> Use the correct physical address for the MALTA_FLASH_BASE
> constant to fix the problem. In order to avoid relocation
> problems, also update the CONFIG_SYS_{TEXT,MONITOR}_BASE
> constants.
>
> The change makes it possible to start U-Boot on a Malta
> board emulated with Qemu 1.6.1 and 1.7.0-rc0. It also
> works on older versions (tested with 1.1.1, 1.2.2, 1.4.2,
> 1.5.3).
>
> Signed-off-by: Gabor Juhos <juhosg at openwrt.org>
> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
> Cc: Paul Burton <paul.burton at imgtec.com>
> ---
> Changes since v1:
>   - update CONFIG_SYS_{TEXT,MONITOR}_BASE constants
>   - update commit message
> ---
>  arch/mips/include/asm/malta.h |    2 +-
>  include/configs/malta.h       |    4 ++--
>  2 files changed, 3 insertions(+), 3 deletions(-)

applied to u-boot-mips/master, thanks

-- 
- Daniel