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authorReinhard Meyer <u-boot@emk-elektronik.de>2010-08-25 14:41:16 +0200
committerHeiko Schocher <hs@denx.de>2010-08-26 08:33:24 +0200
commit7a92e53cd0d8164d518216bebd52679603d6ffe9 (patch)
tree64b71c9ef72bd68124047820677d1233f1f372a4 /common/cmd_i2c.c
parenta947f4b68b04fa73d8c862185b8cb7e61abda211 (diff)
downloadu-boot-linaro-natty-7a92e53cd0d8164d518216bebd52679603d6ffe9.tar.gz
CMD_I2C: make alen=0 work
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
Diffstat (limited to 'common/cmd_i2c.c')
-rw-r--r--common/cmd_i2c.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/common/cmd_i2c.c b/common/cmd_i2c.c
index 371e022f7..1283c82af 100644
--- a/common/cmd_i2c.c
+++ b/common/cmd_i2c.c
@@ -152,7 +152,7 @@ int i2c_set_bus_speed(unsigned int)
/*
* get_alen: small parser helper function to get address length
- * returns the address length,or 0 on error
+ * returns the address length
*/
static uint get_alen(char *arg)
{
@@ -163,9 +163,6 @@ static uint get_alen(char *arg)
for (j = 0; j < 8; j++) {
if (arg[j] == '.') {
alen = arg[j+1] - '0';
- if (alen > 3) {
- return 0;
- }
break;
} else if (arg[j] == '\0')
break;
@@ -198,7 +195,7 @@ static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv
*/
devaddr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
/*
@@ -255,7 +252,7 @@ static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
/*
@@ -337,7 +334,7 @@ static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
/*
@@ -399,7 +396,7 @@ static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
/*
@@ -477,7 +474,7 @@ mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const arg
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
}
@@ -621,7 +618,7 @@ static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
/*