Re: [PATCH v1] ARM: dts: gemini: NAS4220-B: fis-index-block with 128 KiB sectors

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On Wed, Dec 1, 2021 at 1:57 PM Christian Lamparter <chunkeey@xxxxxxxxx> wrote:

> Steven Maddox reported in the OpenWrt bugzilla, that his
> RaidSonic IB-NAS4220-B was no longer booting with the new
> OpenWrt 21.02 (uses linux 5.10's device-tree). However, it was
> working with the previous OpenWrt 19.07 series (uses 4.14).
>
> |[    5.548038] No RedBoot partition table detected in 30000000.flash
> |[    5.618553] Searching for RedBoot partition table in 30000000.flash at offset 0x0
> |[    5.739093] No RedBoot partition table detected in 30000000.flash
> |...
> |[    7.039504] Waiting for root device /dev/mtdblock3...
>
> The provided bootlog shows that the RedBoot partition parser was
> looking for the partition table "at offset 0x0". Which is strange
> since the comment in the device-tree says it should be at 0xfe0000.
>
> Further digging on the internet led to a review site that took
> some useful PCB pictures of their review unit back in February 2009.
> Their picture shows a Spansion S29GL128N11TFI01 flash chip.
>
> From Spansion's Datasheet:
> "S29GL128N: One hundred twenty-eight 64 Kword (128 Kbyte) sectors"
> Steven also provided a "cat /sys/class/mtd/mtd0/erasesize" from his
> unit: "131072".
>
> With the 128 KiB Sector/Erasesize in mind. This patch changes the
> fis-index-block property to (0xfe0000 / 0x20000) = 0x7f.
>
> Fixes: b5a923f8c739 ("ARM: dts: gemini: Switch to redboot partition parsing")
> Bugzilla: https://bugs.openwrt.org/index.php?do=details&task_id=4137
> Reported-by: Steven Maddox <s.maddox@xxxxxxxxxxxxxx>
> Tested-by: Steven Maddox <s.maddox@xxxxxxxxxxxxxx>
> Signed-off-by: Christian Lamparter <chunkeey@xxxxxxxxx>

Thanks a lot Christian excellent rootcausing!

I have relayed this patch directly to the SoC tree for fixes.

Yours,
Linus Walleij



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