[PATCH v3 01/20] mips: add support to restore exception vector base before booting linux

[Daniel Schwierzeck]

Am 21.01.20 um 09:18 schrieb Weijie Gao:
> In U-Boot the exception vector base will be moved to top of memory, to be
> used to display register dump when exception occurs.
> 
> But some old linux kernel does not honor the base set in CP0_EBASE. A
> modified exception vector base will cause kernel crash.
> 
> This patch adds an option to enable reset exception vector base to its
> previous value, or a user configured value before booting linux kernel.
> 
> Signed-off-by: Weijie Gao <weijie.gao at mediatek.com>
> ---
> Changes since v2: none
> ---
>  arch/mips/Kconfig                   | 30 +++++++++++++++++++++++++++++
>  arch/mips/include/asm/u-boot-mips.h |  2 ++
>  arch/mips/lib/bootm.c               |  3 +++
>  arch/mips/lib/traps.c               | 19 ++++++++++++++++++
>  4 files changed, 54 insertions(+)
> 

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>

-- 
- Daniel