X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=discover%2Fplatform-powerpc.c;h=b0a35a7dfff4ea9a886513de2260658ea8cf42a6;hp=e2a86318f84803905c0bccc07519499410646a2b;hb=a984595cfb4910ba6f464c69c316f1613f10f894;hpb=c14b12980885edd035322cd3bc87efff444c39b1

diff --git a/discover/platform-powerpc.c b/discover/platform-powerpc.c
index e2a8631..b0a35a7 100644
--- a/discover/platform-powerpc.c
+++ b/discover/platform-powerpc.c
@@ -4,6 +4,7 @@
 #include <limits.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <sys/stat.h>
 
 #include <talloc/talloc.h>
 #include <list/list.h>
@@ -535,6 +536,20 @@ static int save_config(struct platform *p, struct config *config)
 static bool probe(struct platform *p, void *ctx)
 {
 	struct platform_powerpc *platform;
+	struct stat statbuf;
+	int rc;
+
+	/* we need a device tree and a working nvram binary */
+	rc = stat("/proc/device-tree", &statbuf);
+	if (rc)
+		return false;
+
+	if (!S_ISDIR(statbuf.st_mode))
+		return false;
+
+	rc = process_run_simple(ctx, "nvram", "--print-config", NULL);
+	if (!WIFEXITED(rc) || WEXITSTATUS(rc) != 0)
+		return false;
 
 	platform = talloc(ctx, struct platform_powerpc);
 	list_init(&platform->params);
@@ -545,6 +560,7 @@ static bool probe(struct platform *p, void *ctx)
 
 static struct platform platform_powerpc = {
 	.name		= "powerpc",
+	.dhcp_arch_id	= 0x000e,
 	.probe		= probe,
 	.load_config	= load_config,
 	.save_config	= save_config,