ahci: Fix cache align error messages

Align the ATA ID buffer to the cache-line boundary. This gets rid
of the below error mesages on ARM v7 platforms.

 scanning bus for devices...
 ERROR: v7_dcache_inval_range - start address is not aligned - 0xfee48618
 ERROR: v7_dcache_inval_range - stop address is not aligned - 0xfee48818

CC: Aneesh V <aneesh@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>

diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c
index e24d634..e64df4f 100644 (file)
--- a/drivers/block/ahci.c
+++ b/drivers/block/ahci.c
@@ -623,7 +623,7 @@ static int ata_scsiop_inquiry(ccb *pccb)
                95 - 4,
        };
        u8 fis[20];
-       u16 *tmpid;
+       ALLOC_CACHE_ALIGN_BUFFER(u16, tmpid, ATA_ID_WORDS);
        u8 port;
 
        /* Clean ccb data buffer */
@@ -642,16 +642,10 @@ static int ata_scsiop_inquiry(ccb *pccb)
 
        /* Read id from sata */
        port = pccb->target;
-       tmpid = malloc(ATA_ID_WORDS * 2);
-       if (!tmpid) {
-               printf("%s: No memory for tmpid\n", __func__);
-               return -ENOMEM;
-       }
 
        if (ahci_device_data_io(port, (u8 *) &fis, sizeof(fis), (u8 *)tmpid,
                                ATA_ID_WORDS * 2, 0)) {
                debug("scsi_ahci: SCSI inquiry command failure.\n");
-               free(tmpid);
                return -EIO;
        }