openwrt-xburst/target/linux/ixp4xx/patches-2.6.26/162-wg302v1_mem_fixup.patch

--- a/arch/arm/mach-ixp4xx/wg302v1-setup.c
+++ b/arch/arm/mach-ixp4xx/wg302v1-setup.c
@@ -99,6 +99,36 @@
 	&wg302v1_eth[0],
 };
 
+static char wg302v1_mem_fixup[] __initdata = "mem=32M ";
+
+static void __init wg302v1_fixup(struct machine_desc *desc,
+		struct tag *tags, char **cmdline, struct meminfo *mi)
+
+{
+	struct tag *t = tags;
+	char *p = *cmdline;
+
+	/* 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;
+		}
+	}
+
+	/* Overwrite the end of the table with a new cmdline tag. */
+	t->hdr.tag = ATAG_CMDLINE;
+	t->hdr.size = (sizeof (struct tag_header) +
+		strlen(wg302v1_mem_fixup) + strlen(p) + 1 + 4) >> 2;
+	strlcpy(t->u.cmdline.cmdline, wg302v1_mem_fixup, COMMAND_LINE_SIZE);
+	strlcpy(t->u.cmdline.cmdline + strlen(wg302v1_mem_fixup), p,
+		COMMAND_LINE_SIZE - strlen(wg302v1_mem_fixup));
+
+	/* Terminate the table. */
+	t = tag_next(t);
+	t->hdr.tag = ATAG_NONE;
+	t->hdr.size = 0;
+}
+
 static void __init wg302v1_init(void)
 {
 	ixp4xx_sys_init();
@@ -117,6 +147,7 @@
 	/* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
+	.fixup		= wg302v1_fixup,
 	.map_io		= ixp4xx_map_io,
 	.init_irq	= ixp4xx_init_irq,
 	.timer		= &ixp4xx_timer,