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authorTony Lindgren <tony@atomide.com>2014-10-29 17:16:47 -0700
committerTony Lindgren <tony@atomide.com>2014-10-30 08:35:17 -0700
commite2c5eb78a3cc9b0d69ae924c33da50a4cd6d1fa4 (patch)
tree099dcee356a550dcb0aeae1e8930b550a72ab0bf /arch/arm/boot/dts/omap3-evm-37xx.dts
parent9a894953a97b5215fb602f1c5b541ae0192c70a7 (diff)
downloadlinux-e2c5eb78a3cc9b0d69ae924c33da50a4cd6d1fa4.tar.gz
ARM: dts: Fix wrong GPMC size mappings for omaps
The GPMC binding is obviously very confusing as the values are all over the place. People seem to confuse the GPMC partition size for the chip select, and the device IO size within the GPMC partition easily. The ranges entry contains the GPMC partition size. And the reg entry contains the size of the IO registers of the device connected to the GPMC. Let's fix the issue according to the following table: Device GPMC partition size Device IO size connected in the ranges entry in the reg entry NAND 0x01000000 (16MB) 4 16550 0x01000000 (16MB) 8 smc91x 0x01000000 (16MB) 0xf smc911x 0x01000000 (16MB) 0xff OneNAND 0x01000000 (16MB) 0x20000 (128KB) 16MB NOR 0x01000000 (16MB) 0x01000000 (16MB) 32MB NOR 0x02000000 (32MB) 0x02000000 (32MB) 64MB NOR 0x04000000 (64MB) 0x04000000 (64MB) 128MB NOR 0x08000000 (128MB) 0x08000000 (128MB) 256MB NOR 0x10000000 (256MB) 0x10000000 (256MB) Let's also add comments to the fixed entries while at it. Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/omap3-evm-37xx.dts')
-rw-r--r--arch/arm/boot/dts/omap3-evm-37xx.dts4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/omap3-evm-37xx.dts b/arch/arm/boot/dts/omap3-evm-37xx.dts
index a8bd4349c7d2..f73385bb237a 100644
--- a/arch/arm/boot/dts/omap3-evm-37xx.dts
+++ b/arch/arm/boot/dts/omap3-evm-37xx.dts
@@ -154,12 +154,12 @@
};
&gpmc {
- ranges = <0 0 0x00000000 0x20000000>,
+ ranges = <0 0 0x00000000 0x1000000>, /* CS0: 16MB for NAND */
<5 0 0x2c000000 0x01000000>;
nand@0,0 {
linux,mtd-name= "hynix,h8kds0un0mer-4em";
- reg = <0 0 0>;
+ reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
nand-bus-width = <16>;
ti,nand-ecc-opt = "bch8";