narmstrong changed the topic of #linux-amlogic to: Amlogic mainline kernel development discussion - our wiki http://linux-meson.com/ - ml linux-amlogic@lists.infradead.org - official channel moved from Freenode - publicly logged on https://libera.irclog.whitequark.org/linux-amlogic
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<chewitt> morning all .. HNY :)
<chewitt> narmstrong: I want to map the following SoC ID: "soc soc0: Amlogic Meson GXLX (Unknown) Revision 26:a (c1:2) Detected"
<chewitt> so something like "{ "S905L", 0x26, 0xc1, 0x?? }," is required
<chewitt> I can spot the 26:a and c1 bits .. but how to represent the "2" ?
<chewitt> I tried reading the code but that's beyond my non-coder knowledge of c
<chewitt> tertiary question .. what do we know about "GXLX" boards?
<chewitt> the 'fun' bit of this board is the Mali450 is MP2 not MP3
<chewitt> old chat logs show @hexdump0815 has one too
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<hexdump0815> happy new year to everyone
<hexdump0815> chewitt: these two changes make my s905l2 behave like a normal s905x/w
<narmstrong> chewitt: :a and :2 are the revisions we don’t care about them yet
<narmstrong> Would be great to have this upstream
<chewitt> @hexdump0815 where did you pluck the audio fix from?
<chewitt> @narmstrong so is the "0x26, 0xc1" correct?
<chewitt> what do I put for the third value?
<chewitt> 0x0 ?
<chewitt> hexdump0815 I believe S905L2 is a fake/wrong description
<chewitt> chips have S905L on them; but there appears to be 3, B-3, 2, B-2 variants of the chip
<chewitt> I believe the B denotes dts license, and the 3/2 number indicates the Mali450 core count
<chewitt> some Chinese chip distributor listed them as "S905L" and "S905L2" on some stock sheet, and the invented name got copied by manufacturers
<chewitt> there are some Amlogic preso slides and even vendor kernel code that refers to S905C
<chewitt> but the printing on chips is S905L
<narmstrong> Yep
<narmstrong> The third is a mask
<chewitt> You are assuming I know what a mask is/does :)
<chewitt> so is 'Yep' referencing the 0x26/0xc1 being correct, or the 0x0 being correct?
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<f_> Isn't S905L supported by mainline?
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<chewitt> Yes/No
<chewitt> It's basically S905X/W but with some silicon differences and an extra magic register value needed for audio to work
<f_> Yeah pretty sure it's basically GXL.
<f_> So wouldn't be surprised if they used the same BL2 as S905X.
<f_> Pretty sure GXL and GXM all use the same BL2.
<f_> There doesn't seem to be a major difference between them, "secure" firmware-wise
<f_> At least on BL2 there doesn't seem to be any.
<f_> Same for G12A/G12B/SM1. They seem to all use G12A BL2 IIRC.
<f_> I think I made a huge mistake in lepotato though.
<f_> I'll go ahead and revert that mistake now.
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<hexdump0815> chewitt: the audio hack has a link to the irc discussion on top - the idea for it came from xdarklight