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Re: Pandaboard ES
On Tue, Mar 25, 2025 at 01:06:59PM +0800, Rui-Xiang Guo wrote:
> On Fri, Mar 14, 2025 at 07:54:18PM +0800, Rui-Xiang Guo wrote:
> > I am trying to bring the board to 10.0, and it looks better now:
> > https://github.com/picohive/netbsd-pandaboard/blob/main/boot.log
> >
> > The current problem - is there any proper method to pass a clock
> > from omap4prcm to a9ptmr?
>
> Eventually, the board works on 10.0:
> https://dmesgd.nycbug.org/dmesgd?do=view&id=8298
>
> The patches:
> https://github.com/picohive/netbsd-pandaboard
>
> And we need to update u-boot-pandaboard:
> ===================================================================
> RCS file: /cvsroot/pkgsrc/sysutils/u-boot-pandaboard/Makefile,v
> retrieving revision 1.2
> diff -u -p -r1.2 Makefile
> --- Makefile 12 Aug 2021 07:25:59 -0000 1.2
> +++ Makefile 25 Mar 2025 04:02:38 -0000
> @@ -5,6 +5,8 @@ UBOOT_CONFIG= omap4_panda_defconfig
> UBOOT_BIN= u-boot.img
> UBOOT_BIN+= MLO
>
> +UBOOT_VERSION= 2021.01
> +
> UBOOT_INSTALLBOOT_PLIST= installboot.plist
>
> .include "../../sysutils/u-boot/u-boot-arm.mk"
>
> Some known issues:
> 1. a9ptmr manually obtains frequency, not sure if this is a good solution.
> 2. armpmu failed to be attached, it seems to be a problem with dts.
> 3. ti_prcm doesn't support multiple instances so we can get the last attached
> PRCM (CM2) clocks only, this causes tiwdt to not work.
Issue 3 should be my misunderstanding, tiwdt is attached if I comment out
wd_timer3 clock in omap4_prcm.
-rxg
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