linux-stable/arch/arm/boot/dts/omap3430-sdp.dts
Roger Quadros d5c1eb17ba ARM: dts: omap3430-sdp: Revert to using software ECC for NAND
For v3.14 and prior, 1-bit Hamming code ECC via software was used
for NAND on this board.
Commit c06c527016 in v3.15 changed the behaviour
to use 1-bit Hamming code via Hardware using a different ECC layout
i.e. (ROM code layout) than what is used by software ECC.

This ECC layout change causes NAND filesystems created in v3.14
and prior to be unusable in v3.15 and later. So revert back to
using software ECC scheme.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-08-25 16:15:33 -07:00

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/*
* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/dts-v1/;
#include "omap34xx.dtsi"
/ {
model = "TI OMAP3430 SDP";
compatible = "ti,omap3430-sdp", "ti,omap3";
memory {
device_type = "memory";
reg = <0x80000000 0x10000000>; /* 256 MB */
};
};
&i2c1 {
clock-frequency = <2600000>;
twl: twl@48 {
reg = <0x48>;
interrupts = <7>; /* SYS_NIRQ cascaded to intc */
};
};
#include "twl4030.dtsi"
#include "twl4030_omap3.dtsi"
&mmc1 {
vmmc-supply = <&vmmc1>;
vmmc_aux-supply = <&vsim>;
/*
* S6-3 must be in ON position for 8 bit mode to function
* Else, use 4 bit mode
*/
bus-width = <8>;
};
&mmc2 {
status = "disabled";
};
&mmc3 {
status = "disabled";
};
&gpmc {
ranges = <0 0 0x10000000 0x08000000>,
<1 0 0x28000000 0x08000000>,
<2 0 0x20000000 0x10000000>;
nor@0,0 {
compatible = "cfi-flash";
linux,mtd-name= "intel,pf48f6000m0y1be";
#address-cells = <1>;
#size-cells = <1>;
reg = <0 0 0x08000000>;
bank-width = <2>;
gpmc,mux-add-data = <2>;
gpmc,cs-on-ns = <0>;
gpmc,cs-rd-off-ns = <186>;
gpmc,cs-wr-off-ns = <186>;
gpmc,adv-on-ns = <12>;
gpmc,adv-rd-off-ns = <48>;
gpmc,adv-wr-off-ns = <48>;
gpmc,oe-on-ns = <54>;
gpmc,oe-off-ns = <168>;
gpmc,we-on-ns = <54>;
gpmc,we-off-ns = <168>;
gpmc,rd-cycle-ns = <186>;
gpmc,wr-cycle-ns = <186>;
gpmc,access-ns = <114>;
gpmc,page-burst-access-ns = <6>;
gpmc,bus-turnaround-ns = <12>;
gpmc,cycle2cycle-delay-ns = <18>;
gpmc,wr-data-mux-bus-ns = <90>;
gpmc,wr-access-ns = <186>;
gpmc,cycle2cycle-samecsen;
gpmc,cycle2cycle-diffcsen;
partition@0 {
label = "bootloader-nor";
reg = <0 0x40000>;
};
partition@40000 {
label = "params-nor";
reg = <0x40000 0x40000>;
};
partition@80000 {
label = "kernel-nor";
reg = <0x80000 0x200000>;
};
partition@280000 {
label = "filesystem-nor";
reg = <0x240000 0x7d80000>;
};
};
nand@1,0 {
linux,mtd-name= "micron,mt29f1g08abb";
#address-cells = <1>;
#size-cells = <1>;
reg = <1 0 0x08000000>;
ti,nand-ecc-opt = "sw";
nand-bus-width = <8>;
gpmc,cs-on-ns = <0>;
gpmc,cs-rd-off-ns = <36>;
gpmc,cs-wr-off-ns = <36>;
gpmc,adv-on-ns = <6>;
gpmc,adv-rd-off-ns = <24>;
gpmc,adv-wr-off-ns = <36>;
gpmc,oe-on-ns = <6>;
gpmc,oe-off-ns = <48>;
gpmc,we-on-ns = <6>;
gpmc,we-off-ns = <30>;
gpmc,rd-cycle-ns = <72>;
gpmc,wr-cycle-ns = <72>;
gpmc,access-ns = <54>;
gpmc,wr-access-ns = <30>;
partition@0 {
label = "xloader-nand";
reg = <0 0x80000>;
};
partition@80000 {
label = "bootloader-nand";
reg = <0x80000 0x140000>;
};
partition@1c0000 {
label = "params-nand";
reg = <0x1c0000 0xc0000>;
};
partition@280000 {
label = "kernel-nand";
reg = <0x280000 0x500000>;
};
partition@780000 {
label = "filesystem-nand";
reg = <0x780000 0x7880000>;
};
};
onenand@2,0 {
linux,mtd-name= "samsung,kfm2g16q2m-deb8";
#address-cells = <1>;
#size-cells = <1>;
reg = <2 0 0x10000000>;
gpmc,device-width = <2>;
gpmc,mux-add-data = <2>;
gpmc,cs-on-ns = <0>;
gpmc,cs-rd-off-ns = <84>;
gpmc,cs-wr-off-ns = <72>;
gpmc,adv-on-ns = <0>;
gpmc,adv-rd-off-ns = <18>;
gpmc,adv-wr-off-ns = <18>;
gpmc,oe-on-ns = <30>;
gpmc,oe-off-ns = <84>;
gpmc,we-on-ns = <0>;
gpmc,we-off-ns = <42>;
gpmc,rd-cycle-ns = <108>;
gpmc,wr-cycle-ns = <96>;
gpmc,access-ns = <78>;
gpmc,wr-data-mux-bus-ns = <30>;
partition@0 {
label = "xloader-onenand";
reg = <0 0x80000>;
};
partition@80000 {
label = "bootloader-onenand";
reg = <0x80000 0x40000>;
};
partition@c0000 {
label = "params-onenand";
reg = <0xc0000 0x20000>;
};
partition@e0000 {
label = "kernel-onenand";
reg = <0xe0000 0x200000>;
};
partition@2e0000 {
label = "filesystem-onenand";
reg = <0x2e0000 0xfd20000>;
};
};
};