ARM: shmobile: EMEV2 SMP DT reference code (once more!)
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b4 am 20130327071150.32741.20085.sendpatchset@w520Versions newest first
- v1 Latest2 patches 0 repliesNew
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | ARM: shmobile: Temporarily use C to setup EMEV2 clocksarch/ | +2 | 0 replies | |
| 2/2 | ARM: shmobile: Temporarily use emev2_map_io() for SMParch/ | +1 | 0 replies |
Reviews trailers per patch
None of the 2 patches has a Reviewed-by or Acked-by.
| Patch | Magnus Damm |
|---|---|
| Series | Not-even-remotely-signed-off-by |
| 1/2 | Not-at-all-signed-off-by |
| 2/2 | Not-at-all-signed-off-by |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH 00/02] ARM: shmobile: EMEV2 SMP DT reference code (once more!)
ARM: shmobile: EMEV2 SMP DT reference code (once more!)
[PATCH 01/02] ARM: shmobile: Temporarily use C to setup EMEV2 clocks [PATCH 02/02] ARM: shmobile: Temporarily use emev2_map_io() for SMP
This series is a small silly SMP DT reference implementation meant to give the other shmobile DT SMP platforms a kick in the butt.
None of the patches in the series should be merged as-is, but they can instead be used to boot EMEV2 using DT with SMP support.
I've used the following steps to build an uImage for the KZM9D board:
make -j9 ARCH=arm CROSS_COMPILE=_ uImage./scripts/dtc/dtc -I dts -O dtb arch/arm/boot/dts/emev2-kzm9d.dts -o arch/arm/boot/dts/emev2-kzm9d.dtb rm arch/arm/boot/zImage arch/arm/boot/uImage
make -j9 ARCH=arm CROSS_COMPILE=_ zImage
cat arch/arm/boot/dts/emev2-kzm9d.dtb >> arch/arm/boot/zImage
$(cut -f 3- -d ' ' < arch/arm/boot/.uImage.cmd)
The above sequence works well for me and is obviously much better and easier than making use of any static mach-type number.
As for build configuration, use the following two on KZM9D DT-only:CONFIG_ARCH_EMEV2=yCONFIG_MACH_KZM9D=n
The current state of EMEV2 and KZM9D DT is that you can get serial ports and the STI timer running with DT-only. The GPIO bits still lack DT bindings. This means no ethernet, so initramfs is needed.
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Tested on top of renesas.git tag renesas-next-20130321
arch/arm/mach-shmobile/setup-emev2.c | 3 +++ 1 file changed, 3 insertions(+)