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arm: vf610: fix boot from SD-card 

Boot from SD-card (and probably also from NAND) was broken since
commit d6d07a9bec ("arm: vf610: add NAND support for vf610twr").
It looks like the increased size of U-Boot lead to a situation
where the boot ROM overwrote its own stack/heap while loading
U-Boot from the SD-card to the SRAM. However, U-Boot worked fine
when loaded through USB serial loader directly into SRAM. It
looks like loading from SD-card uses other stack/heap location
then the serial loader (or maybe no stack or heap at all).
This fix moves U-Boot to gfxRAM, which is 512kB in size and is not
used by the boot ROM nor the SD-card loader of it.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Bill Pringlemeir <bpringlemeir@nbsps.com>
utp
Stefan Agner 2015-01-08 18:18:25 +01:00 committed by Tom Rini
parent 75d7a0d7f1
commit b188067f39
1 changed files with 4 additions and 1 deletions
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5
include/configs/vf610twr.h
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@ -125,7 +125,10 @@
#define CONFIG_BOOTDELAY 3
#define CONFIG_LOADADDR 0x82000000
#define CONFIG_SYS_TEXT_BASE 0x3f008000
/* We boot from the gfxRAM area of the OCRAM. */
#define CONFIG_SYS_TEXT_BASE 0x3f408000
#define CONFIG_BOARD_SIZE_LIMIT 524288
#define CONFIG_EXTRA_ENV_SETTINGS \
"script=boot.scr\0" \