[U-Boot] [PATCH 1/2] mvsata: fix ide_preinit for missing disks

[Simon Guinot]

From: Simon Guinot <simon.guinot at sequanux.org>

Consider that ide_preinit() succeed if at least one port is successfully
initialized. This allows to iniatialize IDE support on a board with two
SATA ports but a single hard disk available.

Signed-off-by: Simon Guinot <simon.guinot at sequanux.org>
---
 drivers/block/mvsata_ide.c |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/block/mvsata_ide.c b/drivers/block/mvsata_ide.c
index 1be395f..c7357fc 100644
--- a/drivers/block/mvsata_ide.c
+++ b/drivers/block/mvsata_ide.c
@@ -150,23 +150,25 @@ static int mvsata_ide_initialize_port(struct mvsata_port_registers *port)
 
 int ide_preinit(void)
 {
+	int ret = 1;
 	int status;
+
 	/* Enable ATA port 0 (could be SATA port 0 or 1) if declared */
 #if defined(CONFIG_SYS_ATA_IDE0_OFFSET)
 	status = mvsata_ide_initialize_port(
 		(struct mvsata_port_registers *)
 		(CONFIG_SYS_ATA_BASE_ADDR + CONFIG_SYS_ATA_IDE0_OFFSET));
-	if (status)
-		return status;
+	if (status == MVSATA_STATUS_OK)
+		ret = 0;
 #endif
 	/* Enable ATA port 1 (could be SATA port 0 or 1) if declared */
 #if defined(CONFIG_SYS_ATA_IDE1_OFFSET)
 	status = mvsata_ide_initialize_port(
 		(struct mvsata_port_registers *)
 		(CONFIG_SYS_ATA_BASE_ADDR + CONFIG_SYS_ATA_IDE1_OFFSET));
-	if (status)
-		return status;
+	if (status == MVSATA_STATUS_OK)
+		ret = 0;
 #endif
-	/* return success if all ports initializations succeeded */
-	return MVSATA_STATUS_OK;
+	/* Return success if at least one port initialization succeeded */
+	return ret;
 }
-- 
1.7.5.1