linux-kernel - [PATCH] mfd: Fix ASIC3 SD Host Controller Configuration size

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Date:	Sun, 15 May 2011 14:13:11 +0000
From:	"Paul Parsons" <lost.distance@...oo.com>
To:	<linux-kernel@...r.kernel.org>
Cc:	<sameo@...ux.intel.com>, <philipp.zabel@...il.com>
Subject: [PATCH] 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@...oo.com>
---
diff -uprN clean-2.6.39-rc7/drivers/mfd/asic3.c linux-2.6.39-rc7/drivers/mfd/asic3.c
--- clean-2.6.39-rc7/drivers/mfd/asic3.c	2011-05-15 14:54:26.240112516 +0100
+++ linux-2.6.39-rc7/drivers/mfd/asic3.c	2011-05-15 14:59:12.758135981 +0100
@@ -854,7 +854,8 @@ static int __init asic3_mfd_probe(struct
 
 	/* 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 -uprN clean-2.6.39-rc7/include/linux/mfd/asic3.h linux-2.6.39-rc7/include/linux/mfd/asic3.h
--- clean-2.6.39-rc7/include/linux/mfd/asic3.h	2011-05-15 14:54:23.488093081 +0100
+++ linux-2.6.39-rc7/include/linux/mfd/asic3.h	2011-05-13 19:21:20.515450640 +0100
@@ -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
 

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