On Wednesday 18 February 2015 13:21:03 Pali Rohár wrote:
> Hello,
>
> I tried to test OMAP AES driver on Nokia N900 with special
> Nokia bootloader which enable L3 firewall for OMAP AES HW
> support.
>
> I modified arch/arm/boot/dts/omap34xx-hs.dtsi file and
> commented aes line which disable aes support in DT.
>
> Then I booted kernel and loaded omap-aes.ko module. And I got
> this output in dmesg:
>
> [ 0.222930] platform 480c5000.aes: Cannot lookup hwmod
> 'aes' [ 27.758148] omap-aes 480c5000.aes:
> _od_fail_runtime_resume: FIXME: missing hwmod/omap_dev info
> [ 27.765960] omap-aes 480c5000.aes: omap_aes_probe: failed
> to get_sync(-19)
> [ 29.257690] omap-aes 480c5000.aes: initialization failed.
>
> So it looks like some initialization data are missing for
> Nokia N900 (omap3430 device).
>
> Can somebody look at it? I have patched 2.6.28 kernel were
> omap aes support on this N900 device (with special
> bootloader) is working.
>
> Maybe some other data are missing in DT or in hwmod?
dma channels are missing in DT. I applied this patch:
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 01b7111..473d460 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -92,6 +92,8 @@
ti,hwmods = "aes";
reg = <0x480c5000 0x50>;
interrupts = <0>;
+ dmas = <&sdma 65 &sdma 66>;
+ dma-names = "tx", "rx";
};
prm: prm@48306000 {
@@ -550,6 +552,8 @@
ti,hwmods = "sham";
reg = <0x480c3000 0x64>;
interrupts = <49>;
+ dmas = <&sdma 96>;
+ dma-names = "rx";
};
smartreflex_core: smartreflex@480cb000 {
and omap-aes driver was successfully loaded. now it is in /proc/crypto
I copied dma names and numbers from file arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
--
Pali Rohár
pali.rohar@xxxxxxxxx
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