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What partition should I mount when the kernel is started? Rootfs?

DMårt
Senior III

‎2024-08-21 04:24 PM - edited ‎2024-08-22 04:08 AM

I have compiled tf-a, optee, kernel and u-boot inside STM32CubeIDE.

I have copy over the uImage from the linux build/arch/arm/boot/ and the .dtb file as well. They have been copied over to st-image-bootfs-openstlinux-weston-stm32mp1.ext4 file. I'm only changing the st-image-bootfs-openstlinux-weston-stm32mp1.ext4 file from the Starter Package form STM32MP1 series. The rest e.g st-image-weston-openstlinux-weston-stm32mp1.ext4, st-image-vendorfs-openstlinux-weston-stm32mp1.ext4 and st-image-userfs-openstlinux-weston-stm32mp1.ext4 are not changed.

The kernel is booting, no problem there. But the login promt does not appear. It seems that I got no errors at all, when I look at the full log. My thoughts is that what if bootfs not booting up the software such as command prompt?

The last snippet of the kernel boot log from UART4.

 

D/TC:0   pwr_scv_handler:56 PWR service: set 0x40000000 at offset 0xc
D/TC:0   pwr_scv_handler:56 PWR service: set 0x10000000 at offset 0xc
D/TC:0   pwr_scv_handler:56 PWR service: clear 0x10000000 at offset 0xc
D/TC:0   pwr_scv_handler:56 PWR service: clear 0x40000000 at offset 0xc
[    4.151879] stm32-usbphyc 5a006000.usbphyc: registered rev:1.0
[    4.164077] [drm] Initialized stm 1.0.0 20170330 for 5a001000.display-controller on minor 0
[    4.172909] dwc2 49000000.usb-otg: supply vusb_d not found, using dummy regulator
[    4.179380] dwc2 49000000.usb-otg: supply vusb_a not found, using dummy regulator
D/TC:0   pwr_scv_handler:56 PWR service: set 0x40000000 at offset 0xc
D/TC:0   pwr_scv_handler:56 PWR service: set 0x10000000 at offset 0xc
[    4.202023] dwc2 49000000.usb-otg: EPs: 9, dedicated fifos, 952 entries in SPRAM
D/TC:0   pwr_scv_handler:56 PWR service: clear 0x10000000 at offset 0xc
D/TC:0   pwr_scv_handler:56 PWR service: clear 0x40000000 at offset 0xc
D/TC:0   pwr_scv_handler:56 PWR service: set 0x40000000 at offset 0xc
D/TC:0   pwr_scv_handler:56 PWR service: set 0x10000000 at offset 0xc
[    4.241950] ohci-platform 5800c000.usb: Generic Platform OHCI controller
[    4.247661] ohci-platform 5800c000.usb: new USB bus registered, assigned bus number 1
[    4.255209] ehci-platform 5800d000.usb: EHCI Host Controller
[    4.260801] ehci-platform 5800d000.usb: new USB bus registered, assigned bus number 2
[    4.269000] ohci-platform 5800c000.usb: irq 53, io mem 0x5800c000
[    4.275225] ehci-platform 5800d000.usb: irq 52, io mem 0x5800d000
[    4.287751] mmc0: new DDR MMC card at address 0001
[    4.292389] mmcblk0: mmc0:0001 008GB0 7.28 GiB 
[    4.304665] ehci-platform 5800d000.usb: USB 2.0 started, EHCI 1.00
[    4.310916] hub 2-0:1.0: USB hub found
[    4.313642] hub 2-0:1.0: 2 ports detected
[    4.317706]  mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9
[    4.327652] mmcblk0boot0: mmc0:0001 008GB0 4.00 MiB 
[    4.333975] mmcblk0boot1: mmc0:0001 008GB0 4.00 MiB 
[    4.340047] mmcblk0rpmb: mmc0:0001 008GB0 4.00 MiB, chardev (244:0)
[    4.350948] hub 1-0:1.0: USB hub found
[    4.353356] hub 1-0:1.0: 2 ports detected

 

 

This is my FlasLayout for flashing the eMMC.

 

#Opt	Id	Name	Type	IP	Offset	Binary
-	0x01	fsbl-boot	Binary	none	0x0	arm-trusted-firmware/tf-a-stm32mp151a-stm32-computer-firmware-mx-usb.stm32
-	0x03	fip-boot	FIP	none	0x0	fip/fip-stm32mp151a-stm32-computer-firmware-mx-optee-emmc.bin
P	0x04	fsbl1	Binary	mmc0	boot1	arm-trusted-firmware/tf-a-stm32mp151a-stm32-computer-firmware-mx-optee-emmc.stm32
P	0x05	fsbl2	Binary	mmc0	boot2	arm-trusted-firmware/tf-a-stm32mp151a-stm32-computer-firmware-mx-optee-emmc.stm32
P	0x06	metadata1	FWU_MDATA	mmc0	0x00080000	arm-trusted-firmware/metadata.bin
P	0x07	metadata2	FWU_MDATA	mmc0	0x00100000	arm-trusted-firmware/metadata.bin
P	0x08	fip-a	FIP	mmc0	0x00180000	fip/fip-stm32mp151a-stm32-computer-firmware-mx-optee-emmc.bin
PED	0x09	fip-b	FIP	mmc0	0x00580000	none
PED	0x0A	u-boot-env	ENV	mmc0	0x00980000	none
P	0x10	bootfs	System	mmc0	0x00A00000	st-image-bootfs-openstlinux-weston-stm32mp1.ext4
P	0x11	vendorfs	FileSystem	mmc0	0x04A00000	st-image-vendorfs-openstlinux-weston-stm32mp1.ext4
P	0x12	rootfs	FileSystem	mmc0	0x05A00000	st-image-weston-openstlinux-weston-stm32mp1.ext4
P	0x13	userfs	FileSystem	mmc0	0x33A00000	st-image-userfs-openstlinux-weston-stm32mp1.ext4

 

 

Promt from U-boot

STM32MP> mmc part

Partition Map for MMC device 0  --   Partition Type: EFI

Part	Start LBA	End LBA		Name
	Attributes
	Type GUID
	Partition GUID
  1	0x00000400	0x000007ff	"metadata1"
	attrs:	0x0000000000000000
	type:	8a7a84a0-8387-40f6-ab41-a8b9a5a60d23
		(8a7a84a0-8387-40f6-ab41-a8b9a5a60d23)
	guid:	df1c26fd-a193-41e9-bb1d-ceb52b8f49ba
  2	0x00000800	0x00000bff	"metadata2"
	attrs:	0x0000000000000000
	type:	8a7a84a0-8387-40f6-ab41-a8b9a5a60d23
		(8a7a84a0-8387-40f6-ab41-a8b9a5a60d23)
	guid:	bd11de64-e9bb-457b-9d4a-b75987fe62ae
  3	0x00000c00	0x00002bff	"fip-a"
	attrs:	0x0000000000000000
	type:	19d5df83-11b0-457b-be2c-7559c13142a5
		(19d5df83-11b0-457b-be2c-7559c13142a5)
	guid:	4fd84c93-54ef-463f-a7ef-ae25ff887087
  4	0x00002c00	0x00004bff	"fip-b"
	attrs:	0x0000000000000000
	type:	19d5df83-11b0-457b-be2c-7559c13142a5
		(19d5df83-11b0-457b-be2c-7559c13142a5)
	guid:	09c54952-d5bf-45af-acee-335303766fb3
  5	0x00004c00	0x00004fff	"u-boot-env"
	attrs:	0x0000000000000000
	type:	3de21764-95bd-54bd-a5c3-4abe786f38a8
		(u-boot-env)
	guid:	1c380e98-da64-4fbe-88b4-a516167ea0a7
  6	0x00005000	0x00024fff	"bootfs"
	attrs:	0x0000000000000004
	type:	0fc63daf-8483-4772-8e79-3d69d8477de4
		(linux)
	guid:	ab4be8bf-456c-4365-98cb-c21f48e19c92
  7	0x00025000	0x0002cfff	"vendorfs"
	attrs:	0x0000000000000000
	type:	0fc63daf-8483-4772-8e79-3d69d8477de4
		(linux)
	guid:	8d2075a7-dfa6-446f-8852-c89e0819a204
  8	0x0002d000	0x0019cfff	"rootfs"
	attrs:	0x0000000000000000
	type:	0fc63daf-8483-4772-8e79-3d69d8477de4
		(linux)
	guid:	e91c4e10-16e6-4c0e-bd0e-77becf4a3582
  9	0x0019d000	0x00e8fbff	"userfs"
	attrs:	0x0000000000000000
	type:	0fc63daf-8483-4772-8e79-3d69d8477de4
		(linux)
	guid:	5ff28c0a-bc5f-4c0c-b116-a87c0221a7b2
STM32MP>

 

So what should it stand here? I have tried mmcblk0p6 without success.

# Generic Distro Configuration file generated by OpenEmbedded
MENU BACKGROUND /splash_landscape.bmp
TIMEOUT 20
LABEL OpenSTLinux
	KERNEL /uImage
	FDTDIR /
	INITRD /st-image-resize-initrd
	APPEND root=/dev/<what should it be here?> rootwait rw   console=${console},${baudrate} loglevel=7

 

 

 

 

 

 

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