[OpenWrt-Devel] compatible = "ralink,mt7620a-spi", "ralink,rt2880-spi";

Luis Soltero lsoltero at globalmarinenet.com
Mon Sep 1 10:51:23 EDT 2014


Hello John,

OK. thanks for our comments.  So... is it worth pursuing this to get it right or is it so wrong that we should just
forget it and retract the whole thing?  Your mesg is unclear.  Let me know what you want me to do.

Thanks,

--luis
 
On 9/1/14, 2:25 AM, John Crispin wrote:
> Hi,
>
> that patch subject is utterly wrong. the real desc would be
>
> "add support for the 2nd CS line on mt7620a and add a special
> device_id for this."
>
> however, as you only register the CS with the spi driver and are
> missing the actuall /cs1 mux init, this patch is wrong/incomplete as
> it relies on the bootloader to have setup the cs line already and has
> a misleading desription.
>
> 	John
>
> On 31/08/2014 22:55, Luis Soltero wrote:
>> Hello All,
>>
>> the mt7620a.dtsi makes reference to mt7620a-spi but this node does
>> not exist in spi.c.  The following patch address this.
>>
>> here is the entry in the dts file... spi at b00 {
>>
>>
>> compatible = "ralink,mt7620a-spi", "ralink,rt2880-spi";
>>
>>
>> reg = <0xb00 0x100>;
>>
>>
>>
>>
>> resets = <&rstctrl 18>;
>>
>>
>> reset-names = "spi";
>>
>>
>>
>>
>> #address-cells = <1>;
>>
>>
>> #size-cells = <1>;
>>
>>
>>
>>
>> status = "disabled";
>>
>>
>>
>>
>> pinctrl-names = "default";
>>
>>
>> pinctrl-0 = <&spi_pins>;
>>
>>
>> };
>>
>>
>> the following mus be added to the DTS file to use it.
>>
>> spi at b00 {
>>
>>
>> status = "okay";
>>
>>
>> num-cs = <2>;
>>
>>
>> m25p80 at 0 { snip....
>>
>> here is the patch.
>>
>> --luis
>>
>>
>>
>>
>>
>>
>> _______________________________________________ openwrt-devel
>> mailing list openwrt-devel at lists.openwrt.org 
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>>
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-- 


Luis Soltero, Ph.D., MCS
Director of Software Development, CTO
Global Marine Networks, LLC
StarPilot, LLC
Tel: +1.865.379.8723
Fax: +1.865.681.5017
E-Mail: lsoltero at globalmarinenet.net
Web: http://www.globalmarinenet.net
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Web: http://www.starpilotllc.com
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