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authorMaarten ter Huurne <maarten@treewalker.org>2012-03-29 19:17:01 +0200
committerRalf Baechle <ralf@linux-mips.org>2012-07-23 13:56:20 +0100
commit1471d41a5bdfdf83ed1e5c2148a9763e64b1f53b (patch)
treee3e9ffb84311be6af7ba2dccaad0d0f287a8cb32 /arch/mips/jz4740
parent28a33cbc24e4256c143dce96c7d93bf423229f92 (diff)
downloadlinux-1471d41a5bdfdf83ed1e5c2148a9763e64b1f53b.tar.gz
MTD: NAND: JZ4740: Multi-bank support with autodetection
The platform data can now specify which external memory banks to probe
for NAND chips, and in which order. Banks that contain a NAND are used
and the other banks are freed.

Squashed version of development done in jz-2.6.38 branch.
Original patch by Lars-Peter Clausen with some bug fixes from me.
Thanks to Paul Cercueil for the initial autodetection patch.

Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3560/
Acked-By: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/jz4740')
-rw-r--r--arch/mips/jz4740/platform.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/mips/jz4740/platform.c b/arch/mips/jz4740/platform.c
index 10929e2bc6d8..e342ed4cbd43 100644
--- a/arch/mips/jz4740/platform.c
+++ b/arch/mips/jz4740/platform.c
@@ -157,11 +157,29 @@ static struct resource jz4740_nand_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	{
-		.name	= "bank",
+		.name	= "bank1",
 		.start	= 0x18000000,
 		.end	= 0x180C0000 - 1,
 		.flags = IORESOURCE_MEM,
 	},
+	{
+		.name	= "bank2",
+		.start	= 0x14000000,
+		.end	= 0x140C0000 - 1,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.name	= "bank3",
+		.start	= 0x0C000000,
+		.end	= 0x0C0C0000 - 1,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.name	= "bank4",
+		.start	= 0x08000000,
+		.end	= 0x080C0000 - 1,
+		.flags = IORESOURCE_MEM,
+	},
 };
 
 struct platform_device jz4740_nand_device = {