From: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Date: Sun, 13 May 2007 16:23:15 +0000 (+0200)
Subject: mmc: au1xmmc command types check from data flags
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=c0f3b6c777af071063984fdbc4efb6c904f665f4;p=openwrt%2Fstaging%2Fblogic.git

mmc: au1xmmc command types check from data flags

This patch has changed command types check from data flags.

MMC_STOP_TRANSMISSION is never passed to au1xmmc_send_command().
SEND_STOP() is used for MMC_STOP_TRANSMISSION.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
---

diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index b7156a4555b5..f967226d7505 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -187,9 +187,8 @@ static void au1xmmc_tasklet_finish(unsigned long param)
 }
 
 static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
-				struct mmc_command *cmd)
+				struct mmc_command *cmd, unsigned int flags)
 {
-
 	u32 mmccmd = (cmd->opcode << SD_CMD_CI_SHIFT);
 
 	switch (mmc_resp_type(cmd)) {
@@ -213,24 +212,16 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
 		return MMC_ERR_INVALID;
 	}
 
-	switch(cmd->opcode) {
-	case MMC_READ_SINGLE_BLOCK:
-	case SD_APP_SEND_SCR:
-		mmccmd |= SD_CMD_CT_2;
-		break;
-	case MMC_READ_MULTIPLE_BLOCK:
-		mmccmd |= SD_CMD_CT_4;
-		break;
-	case MMC_WRITE_BLOCK:
-		mmccmd |= SD_CMD_CT_1;
-		break;
-
-	case MMC_WRITE_MULTIPLE_BLOCK:
-		mmccmd |= SD_CMD_CT_3;
-		break;
-	case MMC_STOP_TRANSMISSION:
-		mmccmd |= SD_CMD_CT_7;
-		break;
+	if (flags & MMC_DATA_READ) {
+		if (flags & MMC_DATA_MULTI)
+			mmccmd |= SD_CMD_CT_4;
+		else
+			mmccmd |= SD_CMD_CT_2;
+	} else if (flags & MMC_DATA_WRITE) {
+		if (flags & MMC_DATA_MULTI)
+			mmccmd |= SD_CMD_CT_3;
+		else
+			mmccmd |= SD_CMD_CT_1;
 	}
 
 	au_writel(cmd->arg, HOST_CMDARG(host));
@@ -665,6 +656,7 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
 {
 
 	struct au1xmmc_host *host = mmc_priv(mmc);
+	unsigned int flags = 0;
 	int ret = MMC_ERR_NONE;
 
 	WARN_ON(irqs_disabled());
@@ -677,11 +669,12 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
 
 	if (mrq->data) {
 		FLUSH_FIFO(host);
+		flags = mrq->data->flags;
 		ret = au1xmmc_prepare_data(host, mrq->data);
 	}
 
 	if (ret == MMC_ERR_NONE)
-		ret = au1xmmc_send_command(host, 0, mrq->cmd);
+		ret = au1xmmc_send_command(host, 0, mrq->cmd, flags);
 
 	if (ret != MMC_ERR_NONE) {
 		mrq->cmd->error = ret;