[U-Boot] [PATCH 1/1] ARM: mxs: Get boot mode from OCRAM

Stefano Babic sbabic at denx.de
Wed Apr 22 14:45:56 CEST 2015


On 26/03/2015 23:53, Jörg Krause wrote:
> Reading the boot mode pins after power-up does not necessarily represent the
> boot mode used by the ROM loader. For example the state of a pin may have
> changed because a recovery switch which was pressed to enter USB mode is
> already released after plugging in USB.
> 
> The ROM loader stores the value a fixed address in OCRAM. Use this value
> instead of reading the boot map pins.
> 
> The GLOBAL_BOOT_MODE_ADDR for i.MX28 is taken from an U-Boot patch for the
> MX28EVK:
> http://repository.timesys.com/buildsources/u/u-boot/u-boot-2009.08/u-boot-2009.08-mx28-201012211513.patch
> 
> Leave the boot mode detection for the i.MX23 untouched. Someone has to test
> whether the i.MX ROM loader does also store the boot mode in OCRAM and if the
> address match.
> 
> This patch superseeds my incorrect patch:
> ARM: mxs: get boot mode from OTP
> http://patchwork.ozlabs.org/patch/454930/
> 
> Signed-off-by: Jörg Krause <joerg.krause at embedded.rocks>
> Cc: Stefano Babic <sbabic at denx.de>
> ---

Applied to u-boot-imx, thanks !

Best regards,
Stefano Babic

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