[rt2x00-users] [PATCH] rt2x00: Fix efuse EEPROM reading on PPC32.

[David Joshua Geary]

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On 17/11/11 12:00, users-request at rt2x00.serialmonkey.com wrote:
> diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
> index 3f183a1..1ba079d 100644
> --- a/drivers/net/wireless/rt2x00/rt2800lib.c
> +++ b/drivers/net/wireless/rt2x00/rt2800lib.c
> @@ -3771,7 +3771,7 @@ static void rt2800_efuse_read(struct rt2x00_dev *rt2x00dev, unsigned int i)
>  	/* Apparently the data is read from end to start */
>  	rt2800_register_read_lock(rt2x00dev, EFUSE_DATA3, &reg);
>  	/* The returned value is in CPU order, but eeprom is le */
> -	rt2x00dev->eeprom[i] = cpu_to_le32(reg);
> +	*(u32 *)&rt2x00dev->eeprom[i] = cpu_to_le32(reg);
>  	rt2800_register_read_lock(rt2x00dev, EFUSE_DATA2, &reg);
>  	*(u32 *)&rt2x00dev->eeprom[i + 2] = cpu_to_le32(reg);
>  	rt2800_register_read_lock(rt2x00dev, EFUSE_DATA1, &reg);

Thank you so much (Gertjan, Ivo, and everyone else who has helped with
rt2x00 so far). This patch (with a little massaging because the code in
Linux 3.1.0-rc4 which I am using looks a little different), combined
with ivd's suggestion on Freenode #rt2x00 to disable hardware encryption
successfully got this ageing PowerPC online.

There are still issues, but I am extraordinarily happy about the current
functionality.

1. Software encryption works but hardware encryption does not work
(Again suspect endianness issues since hardware encryption works on an x86)
2. The console gets spammed with messages of the form
2.1. 'phy0 -> rt2x00mac_conf__tx: Info - Configured TX queue X -' ...
2.2. 'cfg80211: Calling CRDA to update world regulatory domain'

I don't know how current these issues are since I am using Linux
3.1.0-rc4 which is neither the current stable release nor the current
mainline release.

I don't know how much the rt2x00 code has changed in the Linux 3.2-rc2
release compared to the Linux 3.1.0-rc4 release...

- -- 
David Joshua Geary
UNE Linux User Group: linux at une.edu.au <http://lugune.dyndns.org>
I don't care what software you use so long as
  we only exchange files in open data formats
Open-Document <http://en.wikipedia.org/wiki/Open_Document>
Ogg <http://en.wikipedia.org/wiki/Ogg>
PDF <http://en.wikipedia.org/wiki/Pdf>

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