On Thu, 16 May 2019 16:40:56 -0300 Fabio Estevam festevam@gmail.com wrote:
On Thu, May 16, 2019 at 2:32 PM Fabio Estevam festevam@gmail.com wrote:
Hi,
I get the following error when trying to boot mx6q sabresd with 2019.07-rc2:
U-Boot SPL 2019.07-rc2 (May 16 2019 - 14:28:55 -0300) Trying to boot from MMC1 spl: could not find mmc device 0. error: -19 SPL: failed to boot from all boot devices ### ERROR ### Please RESET the board ###
I haven't debugged this yet.
Does anyone have any ideas?
SPL is able to load u-boot-dtb.img if I disable CONFIG_SPL_DM:
--- a/configs/mx6sabresd_defconfig +++ b/configs/mx6sabresd_defconfig @@ -65,7 +65,6 @@ CONFIG_SPL_MULTI_DTB_FIT=y CONFIG_SPL_OF_LIST="imx6dl-sabresd imx6q-sabresd imx6qp-sabresd" CONFIG_ENV_IS_IN_MMC=y CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y -CONFIG_SPL_DM=y CONFIG_USB_FUNCTION_FASTBOOT=y CONFIG_FASTBOOT_BUF_ADDR=0x12000000 CONFIG_FASTBOOT_BUF_SIZE=0x10000000
Do we really want to use DM within SPL?
If we do, does anyone know how to fix it?
Please find following repository with DM/DTS conversion for TPC70 imx6q board (it also has SPL DM conversion working - board boots from SD card and eMMC):
https://github.com/lmajewski/u-boot-dfu/commits/DM-SPL-TPC70
My guess is that you need the pinctrl DM support in SPL, to make the card detect pin working.
&pinctrl_usdhc4 { u-boot,dm-spl; };
&pinctrl_usdhc2 { u-boot,dm-spl; };
&gpio2 { u-boot,dm-spl; };
And also the pinctrl-imx6q.c fix to:
static struct imx_pinctrl_soc_info imx6_pinctrl_soc_info __section(".data");
To sum up: TPC70 (imx6q) has support for DM/DTS in both SPL and u-boot proper.
The issue with this port is that it uses Common Clock Framework from Linux and would need SPL's OF_PLATDATA support in eMMC and uart drivers to reduce SPL size.
Best regards,
Lukasz Majewski
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