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Commit a7d4f818 authored by Ezequiel Garcia's avatar Ezequiel Garcia Committed by Jason Cooper
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ARM: mvebu: Add support for NOR flash device on Openblocks AX3 board 



The Plat'home Openblocks AX3 has a 128 MiB NOR flash device connected
to the Device Bus. This commit adds the device tree node to support this device.

The SoC supports a flexible and dynamic decoding window allocation scheme;
but since this feature is still not implemented we need to specify the window
base address in the device tree node itself.
This base address has been selected in a completely arbitrary fashion.

Signed-off-by: default avatarEzequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarJason Cooper <jason@lakedaemon.net>
parent da8d1b38

arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts

+29 −0
Original line number Diff line number Diff line
@@ -139,5 +139,34 @@ 
		usb@d0051000 {

			status = "okay";

		};



		devbus-bootcs@d0010400 {

			status = "okay";

			ranges = <0 0xf0000000 0x8000000>; /* @addr 0xf000000, size 0x8000000 */



			/* Device Bus parameters are required */



			/* Read parameters */

			devbus,bus-width    = <8>;

			devbus,turn-off-ps  = <60000>;

			devbus,badr-skew-ps = <0>;

			devbus,acc-first-ps = <124000>;

			devbus,acc-next-ps  = <248000>;

			devbus,rd-setup-ps  = <0>;

			devbus,rd-hold-ps   = <0>;



			/* Write parameters */

			devbus,sync-enable = <0>;

			devbus,wr-high-ps  = <60000>;

			devbus,wr-low-ps   = <60000>;

			devbus,ale-wr-ps   = <60000>;



			/* NOR 128 MiB */

			nor@0 {

				compatible = "cfi-flash";

				reg = <0 0x8000000>;

				bank-width = <2>;

			};

		};

	};

};