lkml.org 
[lkml]   [2019]   [Mar]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 4/6] nvmem: sunxi_sid: Read out data in native format
Hi,

On Mon, Mar 18, 2019 at 03:33:52PM +0800, Chen-Yu Tsai wrote:
> From: Chen-Yu Tsai <wens@csie.org>
>
> Originally the SID e-fuses were thought to be in big-endian format.
> Later sources show that they are in fact native or little-endian.
> The most compelling evidence is the thermal sensor calibration data,
> which is a set of one to three 16-bit values. In native-endian they
> are in 16-bit cells with increasing offsets, whereas with big-endian
> they are in the wrong order, and a gap with no data will show if there
> are one or three cells.
>
> Switch to a native endian representation for the nvmem device. For the
> H3, the register read-out method was already returning data in native
> endian. This only affects the other SoCs.
>
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>

I thought only the newer SoCs were impacted by this issue?

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2019-03-18 09:43    [W:0.089 / U:0.640 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site