km/common: fix ramfs development target
Calucations of PRAM needs to take into account the 'rootfssize'.
Memory available to the linux kernel 'mem=' is in all cases set to the total
memory size minus the pram size.
Signed-off-by: Andreas Huber <andreas.huber@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Wolfgang Denk <wd@denx.de>
diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c
index fce9d58..a585f17 100644
--- a/board/keymile/common/common.c
+++ b/board/keymile/common/common.c
@@ -64,20 +64,32 @@
unsigned int pnvramaddr;
unsigned int pram;
unsigned int varaddr;
+ unsigned int kernelmem;
+ char *p;
+ unsigned long rootfssize = 0;
pnvramaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM
- CONFIG_KM_PNVRAM;
sprintf((char *)buf, "0x%x", pnvramaddr);
setenv("pnvramaddr", (char *)buf);
- pram = (CONFIG_KM_RESERVED_PRAM + CONFIG_KM_PHRAM + CONFIG_KM_PNVRAM) /
- 0x400;
+ /* try to read rootfssize (ram image) from envrionment */
+ p = getenv("rootfssize");
+ if (p != NULL)
+ strict_strtoul(p, 16, &rootfssize);
+ pram = (rootfssize + CONFIG_KM_RESERVED_PRAM + CONFIG_KM_PHRAM +
+ CONFIG_KM_PNVRAM) / 0x400;
sprintf((char *)buf, "0x%x", pram);
setenv("pram", (char *)buf);
varaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM;
sprintf((char *)buf, "0x%x", varaddr);
setenv("varaddr", (char *)buf);
+
+ kernelmem = gd->ram_size - 0x400 * pram;
+ sprintf((char *)buf, "0x%x", kernelmem);
+ setenv("kernelmem", (char *)buf);
+
return 0;
}