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km/common: fix ramfs development target

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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>
This commit is contained in:
Andreas Huber 2011-09-13 23:06:11 +00:00 committed by Wolfgang Denk
parent 0eb0e59ed3
commit 2a7714ce64
4 changed files with 18 additions and 6 deletions
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16
board/keymile/common/common.c
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@ -64,20 +64,32 @@ int set_km_env(void)
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;
}

1
board/keymile/scripts/develop-common.txt
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@ -4,3 +4,4 @@ configure=km_setboardid && saveenv && reset
subbootcmds=tftpfdt tftpkernel nfsargs add_default boot
nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:/opt/eldk/${arch}
tftpkernel=tftpboot ${load_addr_r} ${hostname}/uImage
rootfssize=0

5
board/keymile/scripts/ramfs-common.txt
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@ -1,11 +1,10 @@
addramfs=setenv bootargs "${bootargs} mem=${rootfsaddr} phram.phram=rootfs${boot_bank},${rootfsaddr},${rootfssize}"
addramfs=setenv bootargs "${bootargs} phram.phram=rootfs${boot_bank},${rootfsaddr},${rootfssize}"
actual_bank=-1
altbootcmd=run ${subbootcmds}
bootcmd=run ${subbootcmds}
subbootcmds=tftpfdt tftpkernel setrootfsaddr tftpramfs flashargs add_default addpanic addramfs boot
nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath}
configure=km_setboardid && run setramfspram && saveenv && reset
setramfspram=setexpr value 0 + ${rootfssize} && setexpr value 0x${value} / 0x400 && setexpr value 0x${value} + ${pram} && setenv pram 0x${value}
configure=km_setboardid && saveenv && reset
rootfsfile=${hostname}/rootfsImage
setrootfsaddr=setexpr value ${pnvramaddr} - ${rootfssize} && setenv rootfsaddr 0x${value}
tftpkernel=tftpboot ${load_addr_r} ${hostname}/uImage

2
include/configs/km/keymile-common.h
View File

@ -170,7 +170,7 @@
"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
":${hostname}:${netdev}:off3" \
" console=" CONFIG_KM_CONSOLE_TTY ",${baudrate}" \
" mem=${pnvramaddr} init=${init}" \
" mem=${kernelmem} init=${init}" \
" phram.phram=phvar,${varaddr}," xstr(CONFIG_KM_PHRAM) \
" ubi.mtd=" CONFIG_KM_UBI_LINUX_MTD_NAME " " \
CONFIG_KM_DEF_BOOT_ARGS_CPU \