Hi Michael,
On Mon, Dec 12, 2022 at 1:03 AM Michael Walle michael@walle.cc wrote:
On 12/9/22 04:55, Tony Dinh wrote:
Hi Simon et al,
(Resend to include u-boot mailing list)
I'm in the process of converting Kirkwood boards to use DM SERIAL. I could not seem to get it to work, having tried adding CONFIG_DM_SERIAL, and also playing with various related CONFIG options (CONFIG_SPECIFY_CONSOLE_INDEX and CONFIG_CONS_INDEX ). From my reading various board configurations that were already converted to DM_SERIAL, I'm under the impression that just turning on CONFIG_DM_SERIAL would work without any other addition.
The board I'm testing is Zyxel NSA310S Kirkwood 6702 (6192) SoC.
diff --git a/configs/nsa310s_defconfig b/configs/nsa310s_defconfig index afa0cad041..e81d1495bd 100644 --- a/configs/nsa310s_defconfig +++ b/configs/nsa310s_defconfig @@ -41,7 +41,6 @@ CONFIG_ENV_OVERWRITE=y CONFIG_ENV_IS_IN_NAND=y CONFIG_SYS_RELOC_GD_ENV_ADDR=y CONFIG_NET_RANDOM_ETHADDR=y -CONFIG_NETCONSOLE=y CONFIG_SYS_FAULT_ECHO_LINK_DOWN=y CONFIG_SATA_MV=y CONFIG_SYS_SATA_MAX_DEVICE=1 @@ -53,6 +52,7 @@ CONFIG_MTD_RAW_NAND=y CONFIG_PHY_MARVELL=y CONFIG_MVGBE=y CONFIG_MII=y +CONFIG_DM_SERIAL=y CONFIG_SYS_NS16550=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y
I also added kirkwood-nsa310s-u-boot.dtsi to help in running kwboot.
&uart0 { u-boot,dm-pre-reloc; };
I've tried kwboot the new u-boot image, and also flashed this image to NAND, and in both cases, I got a silent serial console. It seems to hang up right off the bat. Hope you can help by giving me some pointers on how to debug this.
Might be that the alias is missing and / or that the uart DT node is not enabled. Please give this test-only patch a try:
diff --git a/arch/arm/dts/kirkwood-nsa310s.dts b/arch/arm/dts/kirkwood-nsa310s.dts index 09ee76c2a2e0..ca7a49af9ba4 100644 --- a/arch/arm/dts/kirkwood-nsa310s.dts +++ b/arch/arm/dts/kirkwood-nsa310s.dts @@ -17,6 +17,10 @@ model = "Zyxel NSA310S"; compatible = "zyxel,nsa320s", "marvell,kirkwood-88f6702", "marvell,kirkwood";
aliases {serial0 = &uart0;};memory { device_type = "memory"; reg = <0x00000000 0x10000000>;@@ -317,3 +321,8 @@ &pcie0 { status = "okay"; };
+&uart0 {
status = "okay";u-boot,dm-pre-reloc;+};
Thanks for the patch! but the behavior is still the same (silent serial console and hung the board).
Thanks, Tony
Maybe this will help: https://lore.kernel.org/u-boot/20220817193809.1059688-20-michael@walle.cc/
The lsxl is also a kirkwood based board.
Thanks! indeed that was the malloc problem. This NSA310S board is now working with DM_SERIAL.
I will test a few more Kirkwood boards and keep everybody posted.
All the best, Tony
-michael