Re: rpi0w wifi

[Harold Gutch <logix%foobar.franken.de@localhost>]

On Fri, Feb 14, 2020 at 09:43:43AM +0100, Harold Gutch wrote:
> On Thu, Feb 13, 2020 at 03:00:47PM +0000, Patrick Welche wrote:
> > On Thu, Feb 13, 2020 at 01:48:20PM +0000, Luke Ross wrote:
> > > Might be worth checking your dmesg to see if you are experiencing similar? I
> > > think "sdmmc1: sdmmc_mem_enable failed with error 60" is key error.
> > 
> > I just opened PR kern/54959 hoping the SDMMC_DEBUG bits might help.
> 
> Just to confirm, I am seeing the same as you (CRC errors on sdhc0, no
> bwfm) with both the 202002081050Z and the 202002130840Z build on an
> RPi-0W.  I'll try to find some time over the weekend to find the
> commit that broke it.

It's the .dtb.  A new set of .dts files was imported on January 3,
reverting to bcm2835-rpi-zero-w.dtb from January 2 makes bwfm show up
again.  With the attached patch applied I also see bwfm again.  In
terms of the dts files as in the tree, it esems to me this should go after
l. 114 in src/sys/external/gpl2/dts/dist/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
but I haven't tested this.


  Harold

--- bcm2835-rpi-zero-w_old.dts	2020-02-18 00:56:09.212331000 +0100
+++ bcm2835-rpi-zero-w.dts	2020-02-18 22:53:04.145250000 +0100
@@ -528,16 +528,17 @@
 		sdhci@7e300000 {
 			compatible = "brcm,bcm2835-sdhci";
 			reg = <0x7e300000 0x100>;
 			interrupts = <0x2 0x1e>;
 			clocks = <0x8 0x1c>;
 			status = "okay";
 			#address-cells = <0x1>;
 			#size-cells = <0x0>;
+			pinctrl-names = "default";
 			pinctrl-0 = <0x12 0x13>;
 			bus-width = <0x4>;
 			mmc-pwrseq = <0x14>;
 			non-removable;
 			phandle = <0x4d>;
 
 			wifi@1 {
 				reg = <0x1>;