arm: mvebu: spl: Do not hardcode SATA block size to 512

Find SATA block device by blk_get_devnum_by_uclass_id() function and read
from it the real block size of the SATA disk.

Signed-off-by: Pali Rohár <pali@kernel.org>

diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c
index 6b8c72a..379daa8 100644 (file)
--- a/arch/arm/mach-mvebu/spl.c
+++ b/arch/arm/mach-mvebu/spl.c
@@ -208,10 +208,15 @@ int spl_parse_board_header(struct spl_image_info *spl_image,
 
        /*
         * For SATA srcaddr is specified in number of sectors.
-        * This expects that sector size is 512 bytes.
+        * Retrieve block size of the first SCSI device (same
+        * code used by the spl_sata_load_image_raw() function)
+        * or fallback to default sector size of 512 bytes.
         */
-       if (IS_ENABLED(CONFIG_SPL_SATA) && mhdr->blockid == IBR_HDR_SATA_ID)
-               spl_image->offset *= 512;
+       if (IS_ENABLED(CONFIG_SPL_SATA) && mhdr->blockid == IBR_HDR_SATA_ID) {
+               struct blk_desc *blk_dev = blk_get_devnum_by_uclass_id(UCLASS_SCSI, 0);
+               unsigned long blksz = blk_dev ? blk_dev->blksz : 512;
+               spl_image->offset *= blksz;
+       }
 
        if (spl_image->offset % 4 != 0) {
                printf("ERROR: Wrong srcaddr (0x%08x) in kwbimage\n",