Hello,
In the device tree for my ARM platform, I have several nodes with
addresses within the SCU block:
scu: scu@20000000 {
compatible = "arm,cortex-a9-scu";
reg = <0x20000000 0x100>;
gic: interrupt-controller@20001000 {
compatible = "arm,cortex-a9-gic";
reg = <0x20001000 0x1000>, <0x20000100 0x0100>;
twd-timer@20000600 {
compatible = "arm,cortex-a9-twd-timer";
reg = <0x20000600 0x10>;
Can I use preprocessor arithmetic to abstract the base address,
as would be done in C?
#define SCU_BASE 0x20000000
scu: scu@XXX {
compatible = "arm,cortex-a9-scu";
reg = <SCU_BASE 0x100>;
gic: interrupt-controller@XXX {
compatible = "arm,cortex-a9-gic";
reg = <SCU_BASE+0x1000 0x1000>, <SCU_BASE+0x100 0x0100>;
twd-timer@XXX {
compatible = "arm,cortex-a9-twd-timer";
reg = <SCU_BASE+0x600 0x10>;
Are the @XXX important? Can they be removed altogether?
Regards.
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