[PATCH 1/3] MMC compatibility fix - GO_IDLE

[Pierre Ossman]

This patch adds a GO_IDLE before sending a new SEND_OP_COND (as required 
by MMC standard).
Index: linux-wbsd/drivers/mmc/mmc.c
===================================================================
--- linux-wbsd/drivers/mmc/mmc.c	(revision 57)
+++ linux-wbsd/drivers/mmc/mmc.c	(revision 58)
@@ -579,6 +579,8 @@
 
 static void mmc_setup(struct mmc_host *host)
 {
+	struct mmc_command cmd;
+	
 	if (host->ios.power_mode != MMC_POWER_ON) {
 		int err;
 		u32 ocr;
@@ -613,6 +615,16 @@
 	if (host->ocr == 0)
 		return;
 
+	/* Put cards in idle before sending new OCR */
+
+	cmd.opcode = MMC_GO_IDLE_STATE;
+	cmd.arg = 0;
+	cmd.flags = MMC_RSP_NONE;
+	
+	mmc_wait_for_cmd(host, &cmd, 0);
+
+	mmc_delay(1);
+	
 	/*
 	 * Send the selected OCR multiple times... until the cards
 	 * all get the idea that they should be ready for CMD2.