diff options
| author | Hans de Goede | 2015-05-20 15:27:16 +0200 |
|---|---|---|
| committer | Hans de Goede | 2015-05-29 13:46:36 +0200 |
| commit | 77fe98870bfef558ae12193ffb9d7cfe1736292b (patch) | |
| tree | 0579ec97af99af04f490d55cafe2b9a6ceae8bb9 /include/configs/sunxi-common.h | |
| parent | e049fe282622d78fcc8f2ab9fe00cd186a542fa2 (diff) | |
sunxi: Update sunxi-common.h to deal with different A1-SRAM base addr on sun9i
The A1 SRAM Base differs between sun9i and the others, update sunxi-common.h
to deal with this, so that we do not set the initial stack pointer to point
to the BROM.
This avoids the need for the weird undocumented register write I previously
took from the allwiner u-boot sources and which needed #ifdef-ery in start.S
as it needed to be done really early on.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'include/configs/sunxi-common.h')
| -rw-r--r-- | include/configs/sunxi-common.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h index 2b90681a69e..76f42f5f3dc 100644 --- a/include/configs/sunxi-common.h +++ b/include/configs/sunxi-common.h @@ -97,8 +97,20 @@ #define CONFIG_SPL_BSS_MAX_SIZE 0x00080000 /* 512 KiB */ #define CONFIG_SYS_SPL_MALLOC_SIZE 0x00080000 /* 512 KiB */ +#ifdef CONFIG_MACH_SUN9I +/* + * The A80's A1 sram starts at 0x00010000 rather then at 0x00000000 and is + * slightly bigger. Note that it is possible to map the first 32 KiB of the + * A1 at 0x00000000 like with older SoCs by writing 0x16aa0001 to the + * undocumented 0x008000e0 SYS_CTRL register. Where the 16aa is a key and + * the 1 actually activates the mapping of the first 32 KiB to 0x00000000. + */ +#define CONFIG_SYS_INIT_RAM_ADDR 0x10000 +#define CONFIG_SYS_INIT_RAM_SIZE 0x0a000 /* 40 KiB */ +#else #define CONFIG_SYS_INIT_RAM_ADDR 0x0 #define CONFIG_SYS_INIT_RAM_SIZE 0x8000 /* 32 KiB */ +#endif #define CONFIG_SYS_INIT_SP_OFFSET \ (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE) |