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author | Minal Shah <minalkshah@gmail.com> | 2014-05-19 13:15:47 +0400 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2014-05-20 04:20:31 +0400 |
commit | ff66a3c86e004ce83f7c6e5f459d65c87f9d02b6 (patch) | |
tree | 5eef6e8cfd9ebd9f8657b51ccd0eb26f1968fe6d /arch/arm/boot/dts/dra7.dtsi | |
parent | 7b25babf6ebd3f9b182f3c78021f4dc87d77ed85 (diff) | |
download | linux-ff66a3c86e004ce83f7c6e5f459d65c87f9d02b6.tar.xz |
ARM: dts: dra7: add support for parallel NAND flash
DRA7xx platform has in-build GPMC and ELM h/w engines which can be used
for accessing externel NAND flash device. This patch:
- adds generic DT binding in dra7.dtsi for enabling GPMC and ELM h/w engines
- adds DT binding for Micron NAND Flash (MT29F2G16AADWP) present on dra7-evm
*Important*
On DRA7 EVM, GPMC_WPN and NAND_BOOTn are controlled by DIP switch
So following board settings are required for NAND device detection:
SW5.9 (GPMC_WPN) = LOW
SW5.1 (NAND_BOOTn) = HIGH
Signed-off-by: Minal Shah <minalkshah@gmail.com>
Signed-off-by: Pekon Gupta <pekon@ti.com>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/dra7.dtsi')
-rw-r--r-- | arch/arm/boot/dts/dra7.dtsi | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index 6af8b080ea6d..a8a0ceec6775 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -964,6 +964,26 @@ dr_mode = "otg"; }; }; + + elm: elm@48078000 { + compatible = "ti,am3352-elm"; + reg = <0x48078000 0xfc0>; /* device IO registers */ + interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>; + ti,hwmods = "elm"; + status = "disabled"; + }; + + gpmc: gpmc@50000000 { + compatible = "ti,am3352-gpmc"; + ti,hwmods = "gpmc"; + reg = <0x50000000 0x37c>; /* device IO registers */ + interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>; + gpmc,num-cs = <8>; + gpmc,num-waitpins = <2>; + #address-cells = <2>; + #size-cells = <1>; + status = "disabled"; + }; }; }; |