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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
2.1 KiB
Plaintext
106 lines
2.1 KiB
Plaintext
#include "omap2420.dtsi"
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/ {
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memory {
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device_type = "memory";
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reg = <0x80000000 0x8000000>; /* 128 MB */
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};
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ocp {
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i2c@0 {
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compatible = "i2c-cbus-gpio";
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gpios = <&gpio3 2 0 /* gpio66 clk */
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&gpio3 1 0 /* gpio65 dat */
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&gpio3 0 0 /* gpio64 sel */
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>;
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#address-cells = <1>;
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#size-cells = <0>;
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retu_mfd: retu@1 {
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compatible = "retu-mfd";
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interrupt-parent = <&gpio4>;
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interrupts = <12 IRQ_TYPE_EDGE_RISING>;
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reg = <0x1>;
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};
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};
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};
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};
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&i2c1 {
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clock-frequency = <400000>;
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pmic@72 {
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compatible = "menelaus";
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reg = <0x72>;
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interrupts = <7 IRQ_TYPE_EDGE_RISING>;
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};
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};
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&i2c2 {
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clock-frequency = <400000>;
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};
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&gpmc {
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ranges = <0 0 0x04000000 0x1000000>; /* CS0: 16MB for OneNAND */
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/* gpio-irq for dma: 26 */
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onenand@0,0 {
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#address-cells = <1>;
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#size-cells = <1>;
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reg = <0 0 0x20000>; /* CS0, offset 0, IO size 128K */
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gpmc,sync-read;
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gpmc,burst-length = <16>;
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gpmc,burst-read;
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gpmc,burst-wrap;
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gpmc,device-width = <2>;
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gpmc,mux-add-data = <2>;
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gpmc,cs-on-ns = <0>;
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gpmc,cs-rd-off-ns = <127>;
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gpmc,cs-wr-off-ns = <109>;
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gpmc,adv-on-ns = <0>;
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gpmc,adv-rd-off-ns = <18>;
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gpmc,adv-wr-off-ns = <18>;
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gpmc,oe-on-ns = <27>;
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gpmc,oe-off-ns = <127>;
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gpmc,we-on-ns = <27>;
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gpmc,we-off-ns = <72>;
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gpmc,rd-cycle-ns = <145>;
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gpmc,wr-cycle-ns = <136>;
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gpmc,access-ns = <118>;
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gpmc,page-burst-access-ns = <27>;
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gpmc,bus-turnaround-ns = <0>;
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gpmc,cycle2cycle-delay-ns = <0>;
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gpmc,wait-monitoring-ns = <0>;
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gpmc,clk-activation-ns = <9>;
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gpmc,sync-clk-ps = <27000>;
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/* MTD partition table corresponding to old board-n8x0 file. */
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partition@0 {
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label = "bootloader";
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reg = <0x00000000 0x00020000>;
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read-only;
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};
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partition@1 {
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label = "config";
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reg = <0x00020000 0x00060000>;
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};
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partition@2 {
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label = "kernel";
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reg = <0x00080000 0x00200000>;
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};
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partition@3 {
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label = "initfs";
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reg = <0x00280000 0x00400000>;
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};
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partition@4 {
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label = "rootfs";
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reg = <0x00680000 0x0f980000>;
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};
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partition@5 {
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label = "omap2-onenand";
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reg = <0x00000000 0x10000000>;
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};
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};
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};
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