mfd: Fix ASIC3 SD Host Controller Configuration size

The size of the TC6380AF SD Host Controller Configuration area is 0x200 bytes (assuming registers are aligned on 32-bit boundaries), not 0x400 bytes. Source: Toshiba TC6380AF Specification sections 4.2 and 4.3.1

Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

2 files changed, 3 insertions, 1 deletions

diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 52e56ea43a85..c27fd1fc3b86 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -856,7 +856,8 @@ static int __init asic3_mfd_probe(struct platform_device *pdev,
 
         /* MMC */
         asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >> asic->bus_shift) +
-                                 mem_sdio->start, 0x400 >> asic->bus_shift);
+                                 mem_sdio->start,
+                                 ASIC3_SD_CONFIG_SIZE >> asic->bus_shift);
         if (!asic->tmio_cnf) {
                 ret = -ENOMEM;
                 dev_dbg(asic->dev, "Couldn't ioremap SD_CONFIG\n");
diff --git a/include/linux/mfd/asic3.h b/include/linux/mfd/asic3.h
index d0dd3ebd8488..ed793b77a1c5 100644
--- a/include/linux/mfd/asic3.h
+++ b/include/linux/mfd/asic3.h
@@ -297,6 +297,7 @@ struct asic3_platform_data {
  *
  *****************************************************************************/
 #define ASIC3_SD_CONFIG_BASE    0x0400 /* Assumes 32 bit addressing */
+#define ASIC3_SD_CONFIG_SIZE    0x0200 /* Assumes 32 bit addressing */
 #define ASIC3_SD_CTRL_BASE      0x1000
 #define ASIC3_SDIO_CTRL_BASE    0x1200