openwrtv3/target/linux/ar71xx/patches-4.4/508-MIPS-ath79-prom-image-command-line-hack.patch
Felix Fietkau 2530640f07 ar71xx: add support for linux 4.4
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48563
2016-01-30 13:19:53 +00:00

73 lines
1.6 KiB
Diff

--- a/arch/mips/ath79/prom.c
+++ b/arch/mips/ath79/prom.c
@@ -33,6 +33,41 @@ static void __init ath79_prom_append_cmd
strlcat(arcs_cmdline, ath79_cmdline_buf, sizeof(arcs_cmdline));
}
+#ifdef CONFIG_IMAGE_CMDLINE_HACK
+extern char __image_cmdline[];
+
+static int __init ath79_use_image_cmdline(void)
+{
+ char *p = __image_cmdline;
+ int replace = 0;
+
+ if (*p == '-') {
+ replace = 1;
+ p++;
+ }
+
+ if (*p == '\0')
+ return 0;
+
+ if (replace) {
+ strlcpy(arcs_cmdline, p, sizeof(arcs_cmdline));
+ } else {
+ strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
+ strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
+ }
+
+ /* Validate and setup environment pointer */
+ if (fw_arg2 < CKSEG0)
+ _fw_envp = NULL;
+ else
+ _fw_envp = (int *)fw_arg2;
+
+ return 1;
+}
+#else
+static inline int ath79_use_image_cmdline(void) { return 0; }
+#endif
+
static int __init ath79_prom_init_myloader(void)
{
struct myloader_info *mylo;
@@ -61,6 +96,8 @@ static int __init ath79_prom_init_myload
ath79_prom_append_cmdline("ethaddr", mac_buf);
+ ath79_use_image_cmdline();
+
return 1;
}
@@ -71,7 +108,8 @@ void __init prom_init(void)
if (ath79_prom_init_myloader())
return;
- fw_init_cmdline();
+ if (!ath79_use_image_cmdline())
+ fw_init_cmdline();
env = fw_getenv("ethaddr");
if (env)
--- a/arch/mips/fw/lib/cmdline.c
+++ b/arch/mips/fw/lib/cmdline.c
@@ -35,6 +35,7 @@ void __init fw_init_cmdline(void)
else
_fw_envp = (int *)fw_arg2;
+ arcs_cmdline[0] = '\0';
for (i = 1; i < fw_argc; i++) {
strlcat(arcs_cmdline, fw_argv(i), COMMAND_LINE_SIZE);
if (i < (fw_argc - 1))