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e2c5eb78a3
The GPMC binding is obviously very confusing as the values are all over the place. People seem to confuse the GPMC partition size for the chip select, and the device IO size within the GPMC partition easily. The ranges entry contains the GPMC partition size. And the reg entry contains the size of the IO registers of the device connected to the GPMC. Let's fix the issue according to the following table: Device GPMC partition size Device IO size connected in the ranges entry in the reg entry NAND 0x01000000 (16MB) 4 16550 0x01000000 (16MB) 8 smc91x 0x01000000 (16MB) 0xf smc911x 0x01000000 (16MB) 0xff OneNAND 0x01000000 (16MB) 0x20000 (128KB) 16MB NOR 0x01000000 (16MB) 0x01000000 (16MB) 32MB NOR 0x02000000 (32MB) 0x02000000 (32MB) 64MB NOR 0x04000000 (64MB) 0x04000000 (64MB) 128MB NOR 0x08000000 (128MB) 0x08000000 (128MB) 256MB NOR 0x10000000 (256MB) 0x10000000 (256MB) Let's also add comments to the fixed entries while at it. Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
106 lines
2.3 KiB
Plaintext
106 lines
2.3 KiB
Plaintext
/*
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* Device Tree Source for IGEP COM MODULE (TI OMAP AM/DM37x)
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*
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* Copyright (C) 2012 Javier Martinez Canillas <javier@collabora.co.uk>
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* Copyright (C) 2012 Enric Balletbo i Serra <eballetbo@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "omap3-igep.dtsi"
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/ {
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model = "IGEP COM MODULE (TI OMAP AM/DM37x)";
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compatible = "isee,omap3-igep0030", "ti,omap36xx", "ti,omap3";
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leds {
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pinctrl-names = "default";
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pinctrl-0 = <&leds_pins>;
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compatible = "gpio-leds";
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boot {
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label = "omap3:green:boot";
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gpios = <&twl_gpio 13 GPIO_ACTIVE_LOW>;
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default-state = "on";
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};
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user0 {
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label = "omap3:red:user0";
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gpios = <&twl_gpio 18 GPIO_ACTIVE_LOW>; /* LEDA */
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default-state = "off";
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};
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user1 {
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label = "omap3:green:user1";
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gpios = <&twl_gpio 19 GPIO_ACTIVE_LOW>; /* LEDB */
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default-state = "off";
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};
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user2 {
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label = "omap3:red:user1";
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gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
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default-state = "off";
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};
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};
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};
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&omap3_pmx_core2 {
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leds_pins: pinmux_leds_pins {
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pinctrl-single,pins = <
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OMAP3630_CORE2_IOPAD(0x25e0, PIN_OUTPUT | MUX_MODE4) /* etk_d2.gpio_16 */
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>;
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};
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};
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&gpmc {
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ranges = <0 0 0x00000000 0x1000000>; /* CS0: 16MB for NAND */
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nand@0,0 {
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linux,mtd-name= "micron,mt29c4g96maz";
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reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
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nand-bus-width = <16>;
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ti,nand-ecc-opt = "bch8";
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gpmc,sync-clk-ps = <0>;
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gpmc,cs-on-ns = <0>;
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gpmc,cs-rd-off-ns = <44>;
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gpmc,cs-wr-off-ns = <44>;
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gpmc,adv-on-ns = <6>;
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gpmc,adv-rd-off-ns = <34>;
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gpmc,adv-wr-off-ns = <44>;
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gpmc,we-off-ns = <40>;
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gpmc,oe-off-ns = <54>;
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gpmc,access-ns = <64>;
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gpmc,rd-cycle-ns = <82>;
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gpmc,wr-cycle-ns = <82>;
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gpmc,wr-access-ns = <40>;
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gpmc,wr-data-mux-bus-ns = <0>;
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "SPL";
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reg = <0 0x100000>;
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};
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partition@80000 {
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label = "U-Boot";
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reg = <0x100000 0x180000>;
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};
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partition@1c0000 {
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label = "Environment";
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reg = <0x280000 0x100000>;
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};
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partition@280000 {
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label = "Kernel";
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reg = <0x380000 0x300000>;
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};
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partition@780000 {
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label = "Filesystem";
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reg = <0x680000 0x1f980000>;
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};
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};
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};
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