pxe: parse initrd file from append string
For syslinux, the initrd can be set in the append string as
"initrd=<file>", so try to find it there if we haven't already set the
initrd.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
diff --git a/common/cmd_pxe.c b/common/cmd_pxe.c
index b03fc56..9e92971 100644
--- a/common/cmd_pxe.c
+++ b/common/cmd_pxe.c
@@ -1002,6 +1002,7 @@
static int parse_label(char **c, struct pxe_menu *cfg)
{
struct token t;
+ int len;
char *s = *c;
struct pxe_label *label;
int err;
@@ -1036,10 +1037,22 @@
case T_APPEND:
err = parse_sliteral(c, &label->append);
+ if (label->initrd)
+ break;
+ s = strstr(label->append, "initrd=");
+ if (!s)
+ break;
+ s += 7;
+ len = (int)(strchr(s, ' ') - s);
+ label->initrd = malloc(len + 1);
+ strncpy(label->initrd, s, len);
+ label->initrd[len] = '\0';
+
break;
case T_INITRD:
- err = parse_sliteral(c, &label->initrd);
+ if (!label->initrd)
+ err = parse_sliteral(c, &label->initrd);
break;
case T_LOCALBOOT:
diff --git a/doc/README.pxe b/doc/README.pxe
index 95cd9b9..2bbf53d 100644
--- a/doc/README.pxe
+++ b/doc/README.pxe
@@ -224,9 +224,6 @@
- U-boot's pxe expects U-boot uimg's as kernels. Anything that would work
with the 'bootm' command in U-boot could work with the 'pxe boot' command.
-- U-boot's pxe doesn't recognize initrd options in the append command - you
- must specify initrd files using the initrd command.
-
- U-boot's pxe only recognizes a single file on the initrd command line. It
could be extended to support multiple.