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ARM: dts: am437x: cm-t43: add NAND support 

One of the CompuLab cm-t43 configurations comes with on-board NAND flash as
primary storage. It is partitioned into kernel, dtb, and rootfs partitions.
Add it to the device tree.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benoit Cousson <bcousson@baylibre.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Nikita Kiryanov 2015-12-01 15:55:00 +02:00 committed by Tony Lindgren
parent 81fb61fc2e
commit 3edac2f8e3
1 changed files with 79 additions and 0 deletions
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79
arch/arm/boot/dts/am437x-cm-t43.dts
View File

@ -53,6 +53,81 @@ AM4372_IOPAD(0x958, PIN_OUTPUT | MUX_MODE0) /* spi0_d1.spi0_d1 */
AM4372_IOPAD(0x95C, PIN_OUTPUT | MUX_MODE0) /* spi0_cs0.spi0_cs0 */
>;
};
nand_flash_x8: nand_flash_x8 {
pinctrl-single,pins = <
AM4372_IOPAD(0x800, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
AM4372_IOPAD(0x804, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
AM4372_IOPAD(0x808, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
AM4372_IOPAD(0x80c, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
AM4372_IOPAD(0x810, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
AM4372_IOPAD(0x814, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
AM4372_IOPAD(0x818, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
AM4372_IOPAD(0x81c, PIN_INPUT | PULL_DISABLE | MUX_MODE0)
AM4372_IOPAD(0x870, PIN_INPUT_PULLUP | MUX_MODE0)
AM4372_IOPAD(0x874, PIN_OUTPUT_PULLUP | MUX_MODE0)
AM4372_IOPAD(0x87c, PIN_OUTPUT_PULLUP | MUX_MODE0)
AM4372_IOPAD(0x898, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
AM4372_IOPAD(0x894, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
AM4372_IOPAD(0x890, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
AM4372_IOPAD(0x89c, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
>;
};
};
&gpmc {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&nand_flash_x8>;
ranges = <0 0 0x08000000 0x1000000>;
nand@0,0 {
reg = <0 0 0>;
ti,nand-ecc-opt = "bch8";
ti,elm-id = <&elm>;
nand-bus-width = <8>;
gpmc,device-width = <1>;
gpmc,sync-clk-ps = <0>;
gpmc,cs-on-ns = <0>;
gpmc,cs-rd-off-ns = <44>;
gpmc,cs-wr-off-ns = <44>;
gpmc,adv-on-ns = <6>;
gpmc,adv-rd-off-ns = <34>;
gpmc,adv-wr-off-ns = <44>;
gpmc,we-on-ns = <0>;
gpmc,we-off-ns = <40>;
gpmc,oe-on-ns = <0>;
gpmc,oe-off-ns = <54>;
gpmc,access-ns = <64>;
gpmc,rd-cycle-ns = <82>;
gpmc,wr-cycle-ns = <82>;
gpmc,wait-on-read = "true";
gpmc,wait-on-write = "true";
gpmc,bus-turnaround-ns = <0>;
gpmc,cycle2cycle-delay-ns = <0>;
gpmc,clk-activation-ns = <0>;
gpmc,wait-monitoring-ns = <0>;
gpmc,wr-access-ns = <40>;
gpmc,wr-data-mux-bus-ns = <0>;
gpmc,wait-pin = <0>;
#address-cells = <1>;
#size-cells = <1>;
/* MTD partition table */
partition@0 {
label = "kernel";
reg = <0x0 0x00980000>;
};
partition@980000 {
label = "dtb";
reg = <0x00980000 0x00080000>;
};
partition@a00000 {
label = "rootfs";
reg = <0x00a00000 0x0>;
};
};
};
&i2c0 {
@ -186,6 +261,10 @@ partition@100000 {
};
};
&elm {
status = "okay";
};
&uart0 {
status = "okay";
};