netdev - Re: [PATCH 5/5] bgmac: add support for Northstar SoC (BCM4707, BCM53018)

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Message-ID: <52C5E67B.9070306@hauke-m.de>
Date:	Thu, 02 Jan 2014 23:21:47 +0100
From:	Hauke Mehrtens <hauke@...ke-m.de>
To:	Rafał Miłecki <zajec5@...il.com>
CC:	David Miller <davem@...emloft.net>,
	Network Development <netdev@...r.kernel.org>
Subject: Re: [PATCH 5/5] bgmac: add support for Northstar SoC (BCM4707, BCM53018)

On 01/02/2014 09:40 PM, Rafał Miłecki wrote:
>  > +       if (ci->id == BCMA_CHIP_ID_BCM4707 ||
>> +           ci->id == BCMA_CHIP_ID_BCM53018) {
> 
> Please add a missing
> if (bgmac->phyaddr != BGMAC_PHY_NOREGS)
> return;
> at the beginning of this 4707/53018 block

Why should I add that there?

> 
>> +               bcma_awrite32(core, BCMA_IOCTL,
>> +                             bcma_aread32(core, BCMA_IOCTL) | 0x44);
> 
> Please use
> BGMAC_BCMA_IOCTL_SW_CLKEN | 0x40
> (unless you know 0x40, then replace it too).

The Documentation says this is:
* Bit 2 : TX_CLK_OUT_INVERT_EN - If set, this will invert the TX clock
out of AMAC.
And the other is:
* Bit 12:8  "interface_mode"  This field is programmed through IDM
control bits [6:2]

see this:
https://github.com/RMerl/asuswrt-merlin/blob/master/release/src-rt-6.x.4708/et/sys/etcgmac.c#L1039

> 
> 
>> +                       bgmac->mac_speed = SPEED_2500;
>> +                       bgmac->mac_duplex = DUPLEX_FULL;
>> +                       bgmac_mac_speed(bgmac);
> 
> Wrong indent above.

fixed

> 
>> @@ -911,7 +926,8 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
>>
>>         bcma_core_enable(core, flags);
> 
> Look closer. Don't calculate flags and don't call bcma_core_enable for
> 4707 (but call it for 53018).

I haven't seen that condition, strange.
> 
> 
>> -       if (core->id.rev > 2) {
>> +       if (core->id.rev > 2 && ci->id != BCMA_CHIP_ID_BCM4707 &&
>> +           ci->id != BCMA_CHIP_ID_BCM53018) {
> 
> Could you put 4707 check on the separated line? I'm not pushing however.

changed

Hauke
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