Hi Fabio,
On Thu, Nov 03 2022, Fabio Estevam wrote:
On Thu, Nov 3, 2022 at 9:29 AM Baruch Siach baruch@tkos.co.il wrote:
I am trying to migrate the Hummingboard platform to DM_SERIAL. See below what I got so far. Booting this on top of master (as of commit 8bc87a4c5) shows nothing on the serial console. Next thing I plan to try is toggle GPIOs in entry code to see how far the code proceeds.
Any idea where to look before I go down that way?
Thanks, baruch
diff --git a/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi b/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi index 400b885e4370..8507b818d4cf 100644 --- a/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi +++ b/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi @@ -15,6 +15,10 @@ }; };
+&uart1 {
u-boot,dm-pre-reloc;+};
Here you also need to pass &aips1, &pinctrl_uart1, and &soc.
I tried this (see below) but no luck yet. The tbs2910 appears not to use SPL. I might be missing an SPL driver.
Thanks for your help, baruch
diff --git a/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi b/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi index 400b885e4370..e1cb9b3e89ec 100644 --- a/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi +++ b/arch/arm/dts/imx6qdl-hummingboard2-emmc-som-v15-u-boot.dtsi @@ -15,6 +15,22 @@ }; };
+&soc { + u-boot,dm-pre-reloc; +}; + +&aips1 { + u-boot,dm-pre-reloc; +}; + +&pinctrl_microsom_uart1 { + u-boot,dm-pre-reloc; +}; + +&uart1 { + u-boot,dm-pre-reloc; +}; + &gpio2 { u-boot,dm-pre-reloc; }; diff --git a/configs/mx6cuboxi_defconfig b/configs/mx6cuboxi_defconfig index 9de5e77c75ad..9d7b2764c969 100644 --- a/configs/mx6cuboxi_defconfig +++ b/configs/mx6cuboxi_defconfig @@ -46,7 +46,6 @@ CONFIG_OF_CONTROL=y CONFIG_SPL_OF_CONTROL=y CONFIG_OF_LIST="imx6dl-hummingboard2-emmc-som-v15 imx6q-hummingboard2-emmc-som-v15" CONFIG_MULTI_DTB_FIT=y -CONFIG_SPL_OF_PLATDATA=y CONFIG_ENV_OVERWRITE=y CONFIG_ENV_IS_IN_MMC=y CONFIG_SYS_RELOC_GD_ENV_ADDR=y @@ -65,9 +64,11 @@ CONFIG_FEC_MXC=y CONFIG_RGMII=y CONFIG_MII=y CONFIG_PINCTRL=y +CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_IMX6=y CONFIG_DM_REGULATOR=y CONFIG_DM_REGULATOR_FIXED=y +CONFIG_DM_SERIAL=y CONFIG_MXC_UART=y CONFIG_DM_THERMAL=y CONFIG_IMX_THERMAL=y
Please look at the following commit for reference:
commit 8fbca1a8b9b02fbc40147401d9af764e07dc96af Author: Fabio Estevam festevam@denx.de Date: Tue Mar 15 17:47:05 2022 -0300
tbs2910: Convert to DM_SERIAL Conversion to DM_SERIAL is mandatory. Select DM_SERIAL and add a imx6q-tbs2910-u-boot.dtsi file that describes the nodes that require dm-pre-reloc, which allows the DM model to configure the UART pinctrl early. Remove the now unneeded board UART initialization. Signed-off-by: Fabio Estevam <festevam@denx.de> Tested-by: Soeren Moch <smoch@web.de>