4.5-rc1 kernel is failed to bootup on FSL LS2080 RDB board

DISCUSSION Shi, Yang 2 participants 3 messages Jan 27, 2016

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Shi, Yang

author

2016-01-27 00:02 UTC #0 lore raw

Hi folks,

I tried to boot 4.5-rc1 kernel on my FSL LS2080 RDB (aka LS2085 RDB), but it is failed silently. If I use the dtb file shipped with the SDK with 4.5-rc1 kernel, I can get the serial console output, but it is failed to detect PCI bus.

If I use both kernel and dtb from the SDK, it works well.

The bootloader information:

U-Boot 2015.07-rc1Layerscape2-SDK+g7e8bad0 (Aug 27 2015 - 14:31:42)

SoC: LS2085E (0x87010010)
Clock Configuration:

        CPU0(A57):1600 MHz  CPU1(A57):1600 MHz  CPU2(A57):1600 MHz
        CPU3(A57):1600 MHz  CPU4(A57):1600 MHz  CPU5(A57):1600 MHz
        CPU6(A57):1600 MHz  CPU7(A57):1600 MHz
        Bus:      600  MHz  DDR:      1333.333 MT/s     DP-DDR: 
1333.333 MT/s
Reset Configuration Word (RCW):
        00: 40282830 40400040 00000000 00000000
        10: 00000000 00200000 00200000 00000000
        20: 00c12980 00002580 00000000 00000000
        30: 00000e0b 00000000 00000000 00000000
        40: 00000000 00000000 00000000 00000000
        50: 00000000 00000000 00000000 00000000
        60: 00000000 00000000 00027000 00000000
        70: 412a0000 00000000 00000000 00000000

Model: Freescale Layerscape 2085a RDB Board
Board: LS2085E-RDB, Board Arch: V1, Board version: D, boot from vBank: 4
FPGA: v1.18

And, I have ARCH_LAYERSCAPE, CONFIG_PCIE_DW and CONFIG_PCI_LAYERSCAPE enabled.

Any hint is appreciated.

Thanks,
Yang

Bhupesh Sharma

2016-01-27 06:27 UTC #1 lore raw

Hi,

Quoted 32 lines

From: Shi, Yang
Sent: Wednesday, January 27, 2016 5:33 AM
Hi folks,
I tried to boot 4.5-rc1 kernel on my FSL LS2080 RDB (aka LS2085 RDB), but it is failed silently. If I use the dtb file shipped with the SDK with 4.5-rc1 kernel, I can get the serial console output, but it is failed to detect PCI bus.
If I use both kernel and dtb from the SDK, it works well.
The bootloader information:
U-Boot 2015.07-rc1Layerscape2-SDK+g7e8bad0 (Aug 27 2015 - 14:31:42)
SoC: LS2085E (0x87010010)
Clock Configuration:
        CPU0(A57):1600 MHz  CPU1(A57):1600 MHz  CPU2(A57):1600 MHz
        CPU3(A57):1600 MHz  CPU4(A57):1600 MHz  CPU5(A57):1600 MHz
        CPU6(A57):1600 MHz  CPU7(A57):1600 MHz
        Bus:      600  MHz  DDR:      1333.333 MT/s     DP-DDR:
1333.333 MT/s
Reset Configuration Word (RCW):
        00: 40282830 40400040 00000000 00000000
        10: 00000000 00200000 00200000 00000000
        20: 00c12980 00002580 00000000 00000000
        30: 00000e0b 00000000 00000000 00000000
        40: 00000000 00000000 00000000 00000000
        50: 00000000 00000000 00000000 00000000
        60: 00000000 00000000 00027000 00000000
        70: 412a0000 00000000 00000000 00000000

Quoted 9 lines

Model: Freescale Layerscape 2085a RDB Board
Board: LS2085E-RDB, Board Arch: V1, Board version: D, boot from vBank: 4
FPGA: v1.18
And, I have ARCH_LAYERSCAPE, CONFIG_PCIE_DW and CONFIG_PCI_LAYERSCAPE enabled.
Any hint is appreciated.

As Minghuan (our PCI developer, added in CC) suggested the reason is that uboot is for LS2085a but kernel dtb is for ls2080.

Please apply the patch https://patchwork.kernel.org/patch/7767061/ and try again.

Regards,
Bhupesh

Shi, Yang

author

2016-01-27 18:04 UTC #2 lore raw

Quoted 41 lines · Bhupesh Sharma

Hi,
Quoted 39 lines
From: Shi, Yang
Sent: Wednesday, January 27, 2016 5:33 AM
Hi folks,
I tried to boot 4.5-rc1 kernel on my FSL LS2080 RDB (aka LS2085 RDB), but it is failed silently. If I use the dtb file shipped with the SDK with 4.5-rc1 kernel, I can get the serial console output, but it is failed to detect PCI bus.
If I use both kernel and dtb from the SDK, it works well.
The bootloader information:
U-Boot 2015.07-rc1Layerscape2-SDK+g7e8bad0 (Aug 27 2015 - 14:31:42)
SoC: LS2085E (0x87010010)
Clock Configuration:
         CPU0(A57):1600 MHz  CPU1(A57):1600 MHz  CPU2(A57):1600 MHz
         CPU3(A57):1600 MHz  CPU4(A57):1600 MHz  CPU5(A57):1600 MHz
         CPU6(A57):1600 MHz  CPU7(A57):1600 MHz
         Bus:      600  MHz  DDR:      1333.333 MT/s     DP-DDR:
1333.333 MT/s
Reset Configuration Word (RCW):
         00: 40282830 40400040 00000000 00000000
         10: 00000000 00200000 00200000 00000000
         20: 00c12980 00002580 00000000 00000000
         30: 00000e0b 00000000 00000000 00000000
         40: 00000000 00000000 00000000 00000000
         50: 00000000 00000000 00000000 00000000
         60: 00000000 00000000 00027000 00000000
         70: 412a0000 00000000 00000000 00000000
Model: Freescale Layerscape 2085a RDB Board
Board: LS2085E-RDB, Board Arch: V1, Board version: D, boot from vBank: 4
FPGA: v1.18
And, I have ARCH_LAYERSCAPE, CONFIG_PCIE_DW and CONFIG_PCI_LAYERSCAPE enabled.

Quoted 7 lines

Quoted 2 lines
Any hint is appreciated.
As Minghuan (our PCI developer, added in CC) suggested the reason is that uboot is for LS2085a but kernel dtb is for ls2080.
Please apply the patch https://patchwork.kernel.org/patch/7767061/ and try again.

Thanks so much. That patch just solves the problem partially, I just found the layerscape pci host driver need recognize ls2085a compatible too. With the both fix, I can get the PCI work.

I already sent the patch to the mailing list.

Regards,
Yang

Quoted 4 lines

Regards,
Bhupesh