Hi,
i want to add an sram node to arch/arm/boot/dts/imx28.dtsi. According to
the reference manual [1] the On-Chip RAM is connected to AHB, start
address 0 and has a size of 128 KB.
So i modified the imx28.dtsi based on the patch below. Unfortunately the
dtc give me some strang errors:
ERROR (duplicate_label): Duplicate label 'mac0' on
/ahb@80080000/ethernet@800f0000 and /ahb@00000000/ethernet@800f0000
ERROR: Input tree has errors, aborting (use -f to force output)
What's wrong with my patch or does it reveal another issue?
Regards
Stefan
[1] - http://cache.freescale.com/files/dsp/doc/ref_manual/MCIMX28RM.pdf
i.MX28 Applications Processor Reference Manual, Rev. 2, 08/2013
Chapter 4.1 Memory Map Overview
-------------------------->8---------------------------------------
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -1311,13 +1311,18 @@
};
};
- ahb@80080000 {
+ ahb@00000000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- reg = <0x80080000 0x80000>;
+ reg = <0x00000000 0x20000>, <0x80080000 0x80000>;
ranges;
+ ocram: sram@00000000 {
+ compatible = "mmio-sram";
+ reg = <0x00000000 0x20000>;
+ };
+
usb0: usb@80080000 {
compatible = "fsl,imx28-usb", "fsl,imx27-usb";
reg = <0x80080000 0x10000>;
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