mmc: core: sd:

     fix sd physical layer version 3.0 or above max AU from size 4MB (0x9) to 64MB (0xF)

diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 57618f9e8c2119e5134b3ae002e78bfb477eeb16..2ffe1690f9b53267eef6be71e95fc11020726cb1 100755 (executable)
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -215,7 +215,7 @@ static int mmc_decode_scr(struct mmc_card *card)
 static int mmc_read_ssr(struct mmc_card *card)
 {
        unsigned int au, es, et, eo;
-       int err, i;
+       int err, i, max_au;
        u32 *ssr;
 
        if (!(card->csd.cmdclass & CCC_APP_SPEC)) {
@@ -239,13 +239,14 @@ static int mmc_read_ssr(struct mmc_card *card)
        for (i = 0; i < 16; i++)
                ssr[i] = be32_to_cpu(ssr[i]);
 
+       max_au = card->scr.sda_spec3 ? 0xF : 0x9;
        /*
         * UNSTUFF_BITS only works with four u32s so we have to offset the
         * bitfield positions accordingly.
         */
        au = UNSTUFF_BITS(ssr, 428 - 384, 4);
     //if (au > 0 || au <= 9) {  //Modifyed by xbw at 2013-02-28
-       if (au > 0 && au <= 9) {
+       if (au > 0 && au <= max_au) {
                card->ssr.au = 1 << (au + 4);
                es = UNSTUFF_BITS(ssr, 408 - 384, 16);
                et = UNSTUFF_BITS(ssr, 402 - 384, 6);