netdev - Re: [PATCH 3/5] bgmac: add support for new BGMAC_CMDCFG

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Date:	Thu, 2 Jan 2014 21:28:31 +0100
From:	Rafał Miłecki <zajec5@...il.com>
To:	Hauke Mehrtens <hauke@...ke-m.de>
Cc:	David Miller <davem@...emloft.net>,
	Network Development <netdev@...r.kernel.org>
Subject: Re: [PATCH 3/5] bgmac: add support for new BGMAC_CMDCFG_SR position
 on core rev >= 4

2014/1/2 Hauke Mehrtens <hauke@...ke-m.de>:
> The BGMAC_CMDCFG_SR register is at a different position on core rev >= 4
> -#define  BGMAC_CMDCFG_SR                       0x00000800      /* Set to reset mode */
> +#define  BGMAC_CMDCFG_SR_REVO                  0x00000800      /* Set to reset mode, for other revs */
> +#define  BGMAC_CMDCFG_SR_REV4                  0x00002000      /* Set to reset mode, only for core rev 4 */
> +#define  BGMAC_CMDCFG_SR(rev)  ((rev >= 4) ? BGMAC_CMDCFG_SR_REV4 : BGMAC_CMDCFG_SR_REVO)

If you use _REV4 for rev 4+, then what about using _REV0 for rev 0+?

I guess REVO stands for OTHERS, but others doesn't actually mean rev != 4 here.

Unless it was supposed to be 0 from the beginning and it's just a typo?

In future you may need to use _REV7 or whatever number.

-- 
Rafał
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