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fsl_esdhc: Set the eSHDC DMACTL[SNOOP] bit after resetting the controller

eSDHC host controller reset results in clearing of snoop bit also.
This patch sets the SNOOP bit after the completion of host controller reset.
Without this patch mmc reads are not consistent.

Signed-off-by: P.V.Suresh <pala@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
P.V.Suresh преди 14 години
родител
ревизия
2c1764efc2
променени са 1 файла, в които са добавени 4 реда и са изтрити 4 реда
  1. 4 4
      drivers/mmc/fsl_esdhc.c

+ 4 - 4
drivers/mmc/fsl_esdhc.c

@@ -384,10 +384,6 @@ static int esdhc_init(struct mmc *mmc)
 	int ret = 0;
 	u8 card_absent;
 
-	/* Enable cache snooping */
-	if (cfg && !cfg->no_snoop)
-		esdhc_write32(&regs->scr, 0x00000040);
-
 	/* Reset the entire host controller */
 	esdhc_write32(&regs->sysctl, SYSCTL_RSTA);
 
@@ -395,6 +391,10 @@ static int esdhc_init(struct mmc *mmc)
 	while ((esdhc_read32(&regs->sysctl) & SYSCTL_RSTA) && --timeout)
 		udelay(1000);
 
+	/* Enable cache snooping */
+	if (cfg && !cfg->no_snoop)
+		esdhc_write32(&regs->scr, 0x00000040);
+
 	esdhc_write32(&regs->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
 
 	/* Set the initial clock speed */