openwrt/target/linux/ixp4xx/patches-3.3/162-wg302v1_mem_fixup.patch

--- a/arch/arm/mach-ixp4xx/wg302v1-setup.c
+++ b/arch/arm/mach-ixp4xx/wg302v1-setup.c
@@ -115,6 +115,35 @@ 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;
+
+	/* 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();