Hi Weijie,

On Tue, Apr 12, 2022 at 01:40:00AM +0000, Weijie Gao (高惟杰) wrote:
> Hi Daniel,
> 
> I've also noticed this error message.
> It seems that some struct variables containing all zero data of the pinctrl 
> driver are not set to const, which causes these variables to be put into .bss 
> section, instead of .rodata section.
> As you know the .bss section does not exist in board_init_f stage, and its 
> place is overlapped by dtb used by u-boot. This will result in incorrect data 
> used by the pinctrl driver.
> 
> I'll try to fix it later.

Any news about the gobbled serial output issue?
It would be nice to update uboot-mediatek in OpenWrt to v2022.04, so
MT798x patches will easily apply on top.

Cheers

Daniel


> 
> Best Regards
> 
> Weijie
> 
> -----邮件原件-----
> 发件人: Daniel Golle <dan...@makrotopia.org> 
> 发送时间: 2022年4月12日 6:44
> 收件人: u-boot@lists.denx.de; Weijie Gao (高惟杰) <weijie....@mediatek.com>
> 主题: minor regression in U-Boot 2022.04
> 
> Hi!
> 
> I'm about to bump the U-Boot build for MediaTek MT7622 boards in OpenWrt to 
> U-Boot 2022.04. While practially everything seems to work fine, I've noticed 
> an error message early in the serial output which was not present in U-Boot 
> 2022.01. It is even followed by a bunch of random characters which are 
> different on every boot (hints to a read-out-of-bounds on uninitialzed memory 
> or the like):
> serial_mtk serial@11002000: pinctrl_select_state_full: 
> uclass_get_device_by_phandle_id: err=-19 CC 
> 
> At another boot:
> serial_mtk serial@11002000: pinctrl_select_state_full: 
> uclass_get_device_by_phandle_id: err=-19  H H UI  $&L 
> 1.04-OpenWrt-r19423-c9c2b01b84 (Apr 11 2022 - 19:25:34 +0000)
> 
> This is probably related to recent changes in dm and pinctrl, as there 
> haven't been any changes to mtk_serial itself.
> 
> Log including ROM and ARM Trusted Firmware A serial output:
> 
> F0: 102B 0000
> F6: 0000 0000
> V0: 0000 0000 [0001]
> 00: 0000 0000
> BP: 0400 0041 [0000]
> G0: 1190 0000
> T0: 0000 02AD [000F]
> Jump to BL
> 
> NOTICE:  BL2: v2.4(release):OpenWrt v2021-05-08-d2c75b21-2 (mt7622-snand-2ddr)
> NOTICE:  BL2: Built : 12:03:10, Apr 11 2022
> NOTICE:  SPI-NAND: W25N01GV (128MB)
> NOTICE:  BL2: Booting BL31
> NOTICE:  BL31: v2.4(release):OpenWrt v2021-05-08-d2c75b21-2 
> (mt7622-snand-2ddr)
> NOTICE:  BL31: Built : 12:03:10, Apr 11 2022 serial_mtk serial@11002000: 
> pinctrl_select_state_full: uclass_get_device_by_phandle_id: err=-19 CC  
> U-Boot 2022.04-OpenWrt-r19423-c9c2b01b84 (Apr 11 2022 - 19:25:34 +0000)
> 
> CPU:   MediaTek MT7622
> Model: mt7622-bpi-r64
> DRAM:  1 GiB
> Core:  55 devices, 18 uclasses, devicetree: separate
> MMC:   mmc@11230000: 0, mmc@11240000: 1
> Loading Environment from UBI... SPI-NAND: W25N01GV (128MB) ...
> 
> 
> I will most likely not investigate this any further, but thought it might be 
> good to let you know.
> 
> 
> Best regards
> 
> 
> Daniel

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