linux-kernel - Re: [PATCH v2] arm64: allwinner: h5: add support for NanoPi NEO Plus 2

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Date:   Mon, 28 Aug 2017 14:16:44 +0200
From:   Antony Antony <antony@...nome.org>
To:     Code Kipper <codekipper@...il.com>
Cc:     Antony Antony <antony@...nome.org>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Chen-Yu Tsai <wens@...e.org>, Icenowy Zheng <icenowy@...c.io>,
        linux-sunxi <linux-sunxi@...glegroups.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] arm64: allwinner: h5: add support for NanoPi NEO Plus
 2

On Fri, Aug 25, 2017 at 03:28:41PM +0200, Code Kipper wrote:
> On 25 August 2017 at 12:32, Antony Antony <antony@...nome.org> wrote:

> > +
> > +       brcmf: bcrmf@1 {
> > +               reg = <1>;
> > +               compatible = "brcm,bcm4329-fmac";
> > +       };
> Incorrect wifi chip - just deliver what you've tested.

You are right. Now I found the correct chip ID by enabling debug with 
Broadcom kernel module 'modprobe brcmfmac debug=0x3ffff6'

The module is Ampak AP6212A with Broadcom 43430 rev=1 inside it.

brcmfmac: brcmf_chip_recognition found AXI chip: BCM43430, rev=1
brcmfmac: brcmf_ops_sdio_probe sdio vendor ID: 0x02d0
brcmfmac: brcmf_ops_sdio_probe sdio device ID: 0xa9a6

IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

This information mostly match with https://wikidevi.com/wiki/AMPAK, except 
module is actually AP6212A. Some of the modules may not have 'A' printed on 
them. However the ones that identify as rev=1 is a  AP6212A.

FYI: there were two things that confused me
	- bcm4329-fmac also works.
	- I couldn't configure it to join WiFi network with password.

With change I will send a v4. Here is the propssed diff to v3.

arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo-plus2.dts

        /*
-        * WiFi driver support could be incomplete,
-        * wlan0 is able to see Base Stations, however not able to join.
+        * AMPAK AP6212A WiFi module with BCM43430, rev=1 inside
+        * sdio vendor ID: 0x02d0, sdio device ID: 0xa9a6
         */
	brcmf: wifi@1 {
		reg = <1>;
-               compatible = "brcm,bcm4329-fmac";
+               compatible = "brcm,bcm43430-fmac";
	}; 

I think now nanopi-neo-plus2.dts, v4, is in a good shape to merge.

thanks for the feedback and review.

regards,
-antony