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| author | Nikita Kiryanov <nikita@compulab.co.il> | 2015-12-01 15:55:00 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2015-12-03 08:12:58 -0800 |
| commit | 3edac2f8e34192fe18841d1ef4fadd8043e21029 (patch) | |
| tree | a0cb700fa9597111d87ac610ed4297105bf01853 /arch/arm/boot/dts/am437x-cm-t43.dts | |
| parent | 81fb61fc2e3cd66223a79287cbb6bf410ae7af80 (diff) | |
| download | talos-obmc-linux-3edac2f8e34192fe18841d1ef4fadd8043e21029.tar.gz talos-obmc-linux-3edac2f8e34192fe18841d1ef4fadd8043e21029.zip | |
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>
Diffstat (limited to 'arch/arm/boot/dts/am437x-cm-t43.dts')
| -rw-r--r-- | arch/arm/boot/dts/am437x-cm-t43.dts | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am437x-cm-t43.dts b/arch/arm/boot/dts/am437x-cm-t43.dts index 27e594823867..efabb31d33d1 100644 --- a/arch/arm/boot/dts/am437x-cm-t43.dts +++ b/arch/arm/boot/dts/am437x-cm-t43.dts @@ -53,6 +53,81 @@ 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 @@ }; }; +&elm { + status = "okay"; +}; + &uart0 { status = "okay"; }; |
