From: Jeremy Kerr <jk@ozlabs.org>
Date: Mon, 10 Mar 2014 02:40:46 +0000 (+0800)
Subject: discover: Add debug output to sysparams parsing
X-Git-Tag: v1.0.0~217
X-Git-Url: https://git.ozlabs.org/?p=petitboot;a=commitdiff_plain;h=63e8f10b50712894a30ece9618bafa38734e51e4

discover: Add debug output to sysparams parsing

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
---

diff --git a/discover/platform-powerpc.c b/discover/platform-powerpc.c
index 4eb2805..d1f0575 100644
--- a/discover/platform-powerpc.c
+++ b/discover/platform-powerpc.c
@@ -540,16 +540,24 @@ static int read_bootdev_sysparam(const char *name, uint8_t *val)
 	strcat(path, name);
 
 	fd = open(path, O_RDONLY);
-	if (fd < 0)
+	if (fd < 0) {
+		pb_debug("powerpc: can't access sysparam %s\n",
+				name);
 		return -1;
+	}
 
 	rc = read(fd, buf, sizeof(buf));
 
 	close(fd);
 
 	/* bootdev definitions should only be one byte in size */
-	if (rc != 1)
+	if (rc != 1) {
+		pb_debug("powerpc: sysparam %s read returned %d\n",
+				name, rc);
 		return -1;
+	}
+
+	pb_debug("powerpc: sysparam %s: 0x%02x\n", name, buf[0]);
 
 	switch (buf[0]) {
 	default: