This prevents u-boot from accessing into the reserved memory areas that we have for /var and the logbooks.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com ---
include/configs/km/kmp204x-common.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/include/configs/km/kmp204x-common.h b/include/configs/km/kmp204x-common.h index 913084f..c8af652 100644 --- a/include/configs/km/kmp204x-common.h +++ b/include/configs/km/kmp204x-common.h @@ -139,10 +139,12 @@ unsigned long get_board_sys_clk(unsigned long dummy); #define CONFIG_KM_PNVRAM 0x80000 /* physical RAM MTD size [hex] */ #define CONFIG_KM_PHRAM 0x100000 -/* resereved pram area at the end of memroy [hex] */ -#define CONFIG_KM_RESERVED_PRAM 0x0 -/* enable protected RAM */ -#define CONFIG_PRAM 0 +/* reserved pram area at the end of memory [hex] + * u-boot reserves some memory for the MP boot page */ +#define CONFIG_KM_RESERVED_PRAM 0x1000 +/* set the default PRAM value to at least PNVRAM + PHRAM when pram env variable + * is not valid yet, which is the case for when u-boot copies itself to RAM */ +#define CONFIG_PRAM ((CONFIG_KM_PNVRAM + CONFIG_KM_PHRAM)>>10)
#define CONFIG_KM_CRAMFS_ADDR 0x2000000 #define CONFIG_KM_KERNEL_ADDR 0x1000000 /* max kernel size 15.5Mbytes */