[PATCH linux dev-4.10 0/6] Aspeed SMC enhancements

Joel Stanley joel at jms.id.au
Tue Mar 28 21:47:05 AEDT 2017


On Sat, Mar 25, 2017 at 1:14 AM, C├ędric Le Goater <clg at kaod.org> wrote:
> Hi,
>
> Here is a series providing a couple of fixes and enhancements on the
> SMC driver, among which :
>
>  - support of the segment registers which are needed to set the
>    mapping windows of the chips on the AHB bus.
>  - command mode support
>  - detection of the best HCLK settings for reads (adapted from pflash)
>
> The full tree can be found here:
>
>      https://github.com/legoater/linux/commits/openbmc-4.10
>
> Tested on the palmetto, ast2500 evb and witherspoon platforms.

Great work Cedric. I merged this series into dev-4.10.

In my simple test where I read off the PNOR, I get the following
improvement on the Romulus board I looked at:

$ time dd if=/dev/mtd6 of=/dev/null  bs=64k

v4.7.10-294-gec62e5e4b9bb       0m35.483s
v4.10.5-60-g5e4185ecf0cf        0m7.450s

Cheers,

Joel


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