Subject: [PATCH 3/4] ARM: dts: sun4i: gemei-g9: Enable NAND Flash controller on Gemei G9

From: [email-masked] (Maxime Ripard)
Date: Wed, 16 Sep 2015 12:00:58 +0200

Hi,

On Wed, Sep 16, 2015 at 10:59:39AM +0300, Priit Laes wrote:
> Signed-off-by: Priit Laes <[email-masked]>
> ---
>  arch/arm/boot/dts/sun4i-a10-gemei-g9.dts | 62 +++++++++++++++++++++++++++++++-
>  1 file changed, 61 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts b/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
> index aafe771..0959c45 100644
> --- a/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
> @@ -67,7 +67,6 @@
>   *   2x cameras via CSI
>   *   audio
>   *   AXP battery management
> - *   NAND
>   *   OTG
>   *   Touchscreen - gt801_2plus1 @ i2c adapter 2 @ 0x48
>   */
> @@ -153,6 +152,67 @@
>  	status = "okay";
>  };
>  
> +&nfc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
> +	status = "okay";
> +
> +	nand at 0 {
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		reg = <0>;
> +		allwinner,rb = <0>;
> +
> +		nand-ecc-mode = "hw";
> +		nand-rnd-mode = "hw";
> +		nand-on-flash-bbt;
> +
> +		boot0 at 0 {
> +			label = "boot0";
> +			reg = /bits/ 64 <0x0 0x200000>;
> +			nand-ecc-mode = "hw_syndrome";
> +			nand-rnd-mode = "hw";
> +			nand-randomizer-seeds = /bits/ 16 <0x4a80>;
> +		};
> +
> +		boot0-rescue at 200000 {
> +			label = "boot0-rescue";
> +			reg = /bits/ 64 <0x200000 0x200000>;
> +			nand-ecc-mode = "hw_syndrome";
> +			nand-rnd-mode = "hw";
> +			nand-randomizer-seeds = /bits/ 16 <0x4a80>;
> +		};
> +
> +		main at 200000 {
> +			label = "main";
> +			reg = /bits/ 64 <0x400000 0xffc00000>;
> +			nand-ecc-mode = "hw";
> +			nand-rnd-mode = "hw";
> +			nand-randomizer-seeds = /bits/ 16 <
> +				0x2b75 0x0bd0 0x5ca3 0x62d1 0x1c93 0x07e9 0x2162 0x3a72
> +				0x0d67 0x67f9 0x1be7 0x077d 0x032f 0x0dac 0x2716 0x2436
> +				0x7922 0x1510 0x3860 0x5287 0x480f 0x4252 0x1789 0x5a2d
> +				0x2a49 0x5e10 0x437f 0x4b4e 0x2f45 0x216e 0x5cb7 0x7130
> +				0x2a3f 0x60e4 0x4dc9 0x0ef0 0x0f52 0x1bb9 0x6211 0x7a56
> +				0x226d 0x4ea7 0x6f36 0x3692 0x38bf 0x0c62 0x05eb 0x4c55
> +				0x60f4 0x728c 0x3b6f 0x2037 0x7f69 0x0936 0x651a 0x4ceb
> +				0x6218 0x79f3 0x383f 0x18d9 0x4f05 0x5c82 0x2912 0x6f17
> +				0x6856 0x5938 0x1007 0x61ab 0x3e7f 0x57c2 0x542f 0x4f62
> +				0x7454 0x2eac 0x7739 0x42d4 0x2f90 0x435a 0x2e52 0x2064
> +				0x637c 0x66ad 0x2c90 0x0bad 0x759c 0x0029 0x0986 0x7126
> +				0x1ca7 0x1605 0x386a 0x27f5 0x1380 0x6d75 0x24c3 0x0f8e
> +				0x2b7a 0x1418 0x1fd1 0x7dc1 0x2d8e 0x43af 0x2267 0x7da3
> +				0x4e3d 0x1338 0x50db 0x454d 0x764d 0x40a3 0x42e6 0x262b
> +				0x2d2e 0x1aea 0x2e17 0x173d 0x3a6e 0x71bf 0x25f9 0x0a5d
> +				0x7c57 0x0fbe 0x46ce 0x4939 0x6b17 0x37bb 0x3e91 0x76db>;
> +		};
> +	};
> +};

This uses bindings that haven't been accepted yet by the MTD
maintainer, and are very likely to change.

Plus, in its current mainline form, the storage is not reliable, so
it's not really something that should be added right now.

> +
> +&ohci0 {
> +	status = "okay";
> +};
> +

However, I'm not sure about that one. It seems unrelated to the commit
log, but that would probably be a good addition.

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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