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authorWolfgang Denk <wd@nyx.denx.de>2005-07-28 10:42:26 +0200
committerWolfgang Denk <wd@nyx.denx.de>2005-07-28 10:42:26 +0200
commit15f36a5efd31fe608b43dc197ebbd80d3cecbe44 (patch)
tree0c3e6451f2cc4c3ede4302b13458ae5385c9780c /post
parente82bc62c038859b5bf7daae1bc24b7226f9ed74a (diff)
downloadblackbird-obmc-uboot-15f36a5efd31fe608b43dc197ebbd80d3cecbe44.tar.gz
blackbird-obmc-uboot-15f36a5efd31fe608b43dc197ebbd80d3cecbe44.zip
Fix sysmon POST problem: check I2C error codes
This fixes a problem of displaying bogus voltages when the voltages are so low that the I2C devices start failing while the rest of the system keeps running.
Diffstat (limited to 'post')
-rw-r--r--post/sysmon.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/post/sysmon.c b/post/sysmon.c
index 8758ccdc0a..72fcac3850 100644
--- a/post/sysmon.c
+++ b/post/sysmon.c
@@ -185,6 +185,10 @@ static char *sysmon_unit_value (sysmon_table_t *s, uint val)
char *p, sign;
int dec, frac;
+ if (val == -1) {
+ return "I/O ERROR";
+ }
+
if (unit_val < 0) {
sign = '-';
unit_val = -unit_val;
@@ -297,8 +301,13 @@ int sysmon_post_test (int flags)
}
val = t->sysmon->read(t->sysmon, t->addr);
- t->val_valid = val >= t->val_min && val <= t->val_max;
- t->val_valid_alt = val >= t->val_min_alt && val <= t->val_max_alt;
+ if (val != -1) {
+ t->val_valid = val >= t->val_min && val <= t->val_max;
+ t->val_valid_alt = val >= t->val_min_alt && val <= t->val_max_alt;
+ } else {
+ t->val_valid = 0;
+ t->val_valid_alt = 0;
+ }
if (t->exec_after) {
t->exec_after(t);
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