From: Stefano Babic <sbabic@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: imx: make bmode command work with SPL/U-Boot combo
Date: Wed, 12 Nov 2014 09:05:09 +0100 [thread overview]
Message-ID: <546314B5.9030804@denx.de> (raw)
In-Reply-To: <1414603713-15155-1-git-send-email-nikita@compulab.co.il>
Hi Nikita,
On 29/10/2014 18:28, Nikita Kiryanov wrote:
> The bmode command forces the SoC to use a specific boot device
> by writing its boot mode into SRC_GPR9, and notifying the SoC of
> the change using SRC_GPR10[28] bit: if the bit is on, bootROM
> uses the value in SRC_GPR9 instead of SRC_SMBR1 to determine
> the boot device.
>
> SPL on the other hand is oblivious to this distinction, so once
> the bootROM loads SPL from the device configured in SRC_GPR10,
> SPL will attempt to load U-Boot from the device configured in
> SRC_SMBR1, which is not updated by the bootROM to the value in
> SRC_GPR9.
>
> The result is that the selected boot device is not used across all
> the boot stages.
>
> Update spl_boot_device() to look at gpr9 when necessary.
>
> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
> Cc: Stefano Babic <sbabic@denx.de>
> Cc: Troy Kisky <troy.kisky@boundarydevices.com>
> Cc: Tim Harvey <tharvey@gateworks.com>
> Cc: Eric Nelson <eric.nelson@boundarydevices.com>
> Cc: Fabio Estevam <fabio.estevam@freescale.com>
> Cc: Heiko Schocher <hs@denx.de>
> ---
Applied to u-boot-imx, thanks !
Best regards,
Stefano Babic
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prev parent reply other threads:[~2014-11-12 8:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-29 17:28 [U-Boot] [PATCH] arm: imx: make bmode command work with SPL/U-Boot combo Nikita Kiryanov
2014-11-11 15:29 ` Nikita Kiryanov
2014-11-12 8:05 ` Stefano Babic [this message]
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