Re: Pandaboard ES

[Rui-Xiang Guo <rxg%lavabit.com@localhost>]

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.

-rxg