--- a/arch/arm/mach-ixp4xx/wg302v1-setup.c +++ b/arch/arm/mach-ixp4xx/wg302v1-setup.c @@ -117,6 +117,35 @@ static struct platform_device *wg302v1_d &wg302v1_eth[0], }; +static char wg302v1_mem_fixup[] __initdata = " mem=32M"; + +static void __init wg302v1_fixup(struct tag *tags, char **cmdline, + struct meminfo *mi) +{ + struct tag *t = tags; + char *p = *cmdline; + size_t fixlen, cmdlen; + + /* Find the end of the tags table, taking note of any cmdline tag. */ + for (; t->hdr.size; t = tag_next(t)) { + if (t->hdr.tag == ATAG_CMDLINE) { + p = t->u.cmdline.cmdline; + } + } + + fixlen = strlen(wg302v1_mem_fixup); + cmdlen = strlen(p); + if (fixlen + cmdlen >= COMMAND_LINE_SIZE) + return; + + /* append the fixup to the cmdline */ + memmove(p + cmdlen, wg302v1_mem_fixup, fixlen + 1); + + /* Adjust the size of the atag if there was one */ + if (t->hdr.size) + t->hdr.size += fixlen; +} + static void __init wg302v1_init(void) { ixp4xx_sys_init();