[MMC] Add MMC command type flags

Some hosts need to know the command type, so pass it via a set of
flags in cmd->flags.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 30 insertions, 29 deletions

diff --git a/drivers/mmc/au1xmmc.c b/drivers/mmc/au1xmmc.c
index aaf04638054e..227c39a7c1b4 100644
--- a/drivers/mmc/au1xmmc.c
+++ b/drivers/mmc/au1xmmc.c
@@ -194,7 +194,7 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
 
         u32 mmccmd = (cmd->opcode << SD_CMD_CI_SHIFT);
 
-        switch(cmd->flags) {
+        switch (mmc_rsp_type(cmd->flags)) {
         case MMC_RSP_R1:
                 mmccmd |= SD_CMD_RT_1;
                 break;
@@ -483,34 +483,35 @@ static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status)
         cmd = mrq->cmd;
         cmd->error = MMC_ERR_NONE;
 
-        if ((cmd->flags & MMC_RSP_MASK) == MMC_RSP_SHORT) {
-
-                /* Techincally, we should be getting all 48 bits of the response
-                 * (SD_RESP1 + SD_RESP2), but because our response omits the CRC,
-                 * our data ends up being shifted 8 bits to the right.  In this case,
-                 * that means that the OSR data starts at bit 31, so we can just
-                 * read RESP0 and return that
-                 */
-
-                cmd->resp[0] = au_readl(host->iobase + SD_RESP0);
-        }
-        else if ((cmd->flags & MMC_RSP_MASK) == MMC_RSP_LONG) {
-                u32 r[4];
-                int i;
-
-                r[0] = au_readl(host->iobase + SD_RESP3);
-                r[1] = au_readl(host->iobase + SD_RESP2);
-                r[2] = au_readl(host->iobase + SD_RESP1);
-                r[3] = au_readl(host->iobase + SD_RESP0);
-
-                /* The CRC is omitted from the response, so really we only got
-                 * 120 bytes, but the engine expects 128 bits, so we have to shift
-                 * things up
-                 */
-
-                for(i = 0; i < 4; i++) {
-                        cmd->resp[i] = (r[i] & 0x00FFFFFF) << 8;
-                        if (i != 3) cmd->resp[i] |= (r[i + 1] & 0xFF000000) >> 24;
+        if (cmd->flags & MMC_RSP_PRESENT) {
+                if (cmd->flags & MMC_RSP_136) {
+                        u32 r[4];
+                        int i;
+
+                        r[0] = au_readl(host->iobase + SD_RESP3);
+                        r[1] = au_readl(host->iobase + SD_RESP2);
+                        r[2] = au_readl(host->iobase + SD_RESP1);
+                        r[3] = au_readl(host->iobase + SD_RESP0);
+
+                        /* The CRC is omitted from the response, so really
+                         * we only got 120 bytes, but the engine expects
+                         * 128 bits, so we have to shift things up
+                         */
+
+                        for(i = 0; i < 4; i++) {
+                                cmd->resp[i] = (r[i] & 0x00FFFFFF) << 8;
+                                if (i != 3)
+                                        cmd->resp[i] |= (r[i + 1] & 0xFF000000) >> 24;
+                        }
+                } else {
+                        /* Techincally, we should be getting all 48 bits of
+                         * the response (SD_RESP1 + SD_RESP2), but because
+                         * our response omits the CRC, our data ends up
+                         * being shifted 8 bits to the right.  In this case,
+                         * that means that the OSR data starts at bit 31,
+                         * so we can just read RESP0 and return that
+                         */
+                        cmd->resp[0] = au_readl(host->iobase + SD_RESP0);
                 }
         }