Ack: [SRU][N:raspi][PATCH 0/7] mmc0 error on boot with eMMC CM5 (LP: #2089555)

[Kuba Pawlak]

On 19.03.2025 10:58, Juerg Haefliger wrote:
> BugLink: https://bugs.launchpad.net/bugs/2089555
>
> [ Impact ]
>
> When attempting to boot the Ubuntu 24.04 image on an eMMC variant of the CM5, attached to a
> CM4 I/O carrier board, the boot hangs fairly early on, just presumably at the point it
> attempts to mount the "real" root. The following error message is repeated on the console:
>
> [   14.648143] mmc0: mmc_select_hs400 failed, error -84
> [   14.653123] mmc0: error -84 whilst initialising MMC card
>
> This occurs with both the noble release kernel (6.8.0-1004.4), and with an image built from
> up to date sources using the noble-updates kernel (6.8.0-1015.17). I haven't managed to test
> the noble-proposed kernel (6.8.0-1016.18) yet.
>
> The issue doesn't occur with the oracular image (with kernel 6.11.0-1004.4).
>
> I'll attach the output from the serial console from as far as it got.
>
>
> [ Fix ]
>
> Update Pi5/CM5 DTB.
>
>
> [ Test Case ]
>
> Boot CM5 from eMMC. Verify rebooting is working as well.
>
>
> [ Where Problems Could Occur ]
>
> DTB fixes are Pi5/CM5 specific, so only Pi5/CM5 might exhibit problems introduced by this fix.
> Other Pis shouldn't be affected by this change.
>
>
> Jonathan Bell (3):
>    DTS: bcm2712: emmc2 clock frequency is 200MHz
>    DTS: bcm2712: defer SDIO1 CQE selection to the board dtb
>    dts: bcm2712: cm5: fix typo and declare HS400es support
>
> Phil Elwell (3):
>    dts: bcm2712: cm5: There is no card detect signal
>    dts: bcm2712: cm5: Add antenna controls
>    dts: bcm2712: cm5: Force the ANT pins to GPIOs
>
> Tim Gover (1):
>    dts: bcm2712: cm5: Disable HS400
>
>   .../arm/boot/dts/broadcom/bcm2712-rpi-5-b.dts |  1 +
>   .../boot/dts/broadcom/bcm2712-rpi-cm5.dtsi    | 44 +++++++++++++++----
>   arch/arm/boot/dts/broadcom/bcm2712.dtsi       |  3 +-
>   arch/arm/boot/dts/overlays/README             | 10 +++--
>   4 files changed, 45 insertions(+), 13 deletions(-)
>
Acked-by: Kuba Pawlak <kuba.pawlak at canonical.com>
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