[U-Boot] [PATCH v3] mx6: Add workaround for ARM errata

[Stefano Babic]

On 05/01/2013 03:07, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam at freescale.com>
> 
> Add workaround for the following ARM errata: 743622 and 751472.
> 
> The motivation for this change is the following kernel commit 62e4d357a 
> (ARM: 7609/1: disable errata work-arounds which access
> secure registers), which removes the errata from multiplatform kernel.
> 
> Since imx has been converted to multiplatform in the kernel, we need to apply
> such workarounds into the bootloader.
> 
> Workaround code has been taken from arch/arm/mm/proc-v7.S from 3.7.1 kernel.
> 
> Explanation of each erratum is provided at "Chip Errata for the i.MX 6Dual/6Quad"
> document available at: cache.freescale.com/files/32bit/doc/errata/IMX6DQCE.pdf
> 
> Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
> ---
> Following patch has been proposed into arm kernel mailing list:
> http://www.spinics.net/lists/arm-kernel/msg214840.html
> 
> Changes since v2:
> - Use c15 register (which match both the mx6 errata and kernel code) and
> also put a note to mx6q erratum document.
> 
> Changes since v1:
> - Use the same style of the erratum in arch/arm/cpu/armv7/mx5/lowlevel_init.S.
> 


Applied to u-boot-imx (fix), thanks.

Best regards,
Stefano Babic


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