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Diffstat (limited to 'common/cmd_sata.c')
-rw-r--r--common/cmd_sata.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/common/cmd_sata.c b/common/cmd_sata.c
index dd6f1d9a5bf..e84977870ab 100644
--- a/common/cmd_sata.c
+++ b/common/cmd_sata.c
@@ -31,7 +31,7 @@
int curr_device = -1;
block_dev_desc_t sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
-int sata_initialize(void)
+int __sata_initialize(void)
{
int rc;
int i;
@@ -55,6 +55,7 @@ int sata_initialize(void)
curr_device = 0;
return rc;
}
+int sata_initialize(void) __attribute__((weak,alias("__sata_initialize")));
block_dev_desc_t *sata_get_dev(int dev)
{
@@ -65,10 +66,18 @@ int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int rc = 0;
+ if (argc == 2 && strcmp(argv[1], "init") == 0)
+ return sata_initialize();
+
+ /* If the user has not yet run `sata init`, do it now */
+ if (curr_device == -1)
+ if (sata_initialize())
+ return 1;
+
switch (argc) {
case 0:
case 1:
- printf("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return 1;
case 2:
if (strncmp(argv[1],"inf", 3) == 0) {
@@ -106,7 +115,7 @@ int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
}
return rc;
}
- printf("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return 1;
case 3:
if (strncmp(argv[1], "dev", 3) == 0) {
@@ -138,7 +147,7 @@ int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
}
return rc;
}
- printf ("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return 1;
default: /* at least 4 args */
@@ -175,7 +184,7 @@ int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
n, (n == cnt) ? "OK" : "ERROR");
return (n == cnt) ? 0 : 1;
} else {
- printf("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
rc = 1;
}
@@ -185,7 +194,8 @@ int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
U_BOOT_CMD(
sata, 5, 1, do_sata,
- "sata - SATA sub system\n",
+ "SATA sub system",
+ "sata init - init SATA sub system\n"
"sata info - show available SATA devices\n"
"sata device [dev] - show or set current device\n"
"sata part [dev] - print partition table\n"