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Change subject: soc/intel/cmn/cnvi: Move "double" comment
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Change subject: soc/intel/cmn/cnvi:: Change the Power Resource to S0
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Change subject: sb/intel/bd82x6x: Drop xhci_overcurrent_mapping
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Patch Set 6: Code-Review+2
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Change subject: mb/asus/p8z77-v: Attempt to correctly route PCIe lanes
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Patch Set 4:
(1 comment)
File src/mainboard/asus/p8x7x-series/variants/p8z77-v/early_init.c:
https://review.coreboot.org/c/coreboot/+/85413/comment/9355f5d6_86e08392?us… :
PS2, Line 77: {7, 34, 20, -1}
> Thanks Bill. At this point I gotta call for help. Did that already on the mailing list. […]
I think I found a possible issue after digging through the NCT6779 datasheet. The GP5 Push-Pull/Open Drain configuration at LDN 0xF, Register 0xE4 defaults to 0xFF and is set to 0xFC in the devicetree (not applicable here in the bootblock), which means GP54-56 are all open drain.
With no x4 or longer card in PCIEX16_3 (I see that there's a PCIe x1 USB 3 card in PCIEX16_3 based on the lspci/cbmem output in that last log), X_3X16_DET_C (PCIEX16_3_NOT_PRESENT) will be 1, which pulls U31X1_SW#, T1X1SW#, and PCIEX1_2_SW# low through QSWQ[4,6,8]. Being open drain, GP54-56 cannot pull any of those signals high, so it is as if they are all 0 (port 2 to PCIEX1_1, and invalid) despite the data register at 0xF5 suggesting otherwise.
So maybe try adding a
```
#define GPIO_PP_OD_DEV PNP_DEV(0x2e, NCT6776_GPIO_PP_OD)
```
and
```
pnp_set_logical_device(NCT6776_GPIO_PP_OD);
pnp_write_config(GPIO_PP_OD_DEV, 0xe4, 0x8c);
```
before configuring the GPIO device. Setting it to push-pull should be safe as there does appear to be series resistors between QSWQ[4,6,8] and GP54-56 which would prevent shorting those GPIOs to ground through those MOSFETs. By the way, what does the vendor firmware set for that SuperIO register? I can't access those logs from earlier.
Did the ASM1061 actually ever show up in lspci? Assuming my theory is correct, the ASM1061 shouldn't actually work as the clock isn't being routed to it. I don't see it in that last autoport dump either, and the cbmem log seems to show that it detects a device in 1c.3 (looks like this is based on the Slot Status register Presence Detect State bit which might not actually care about whether it can communicate with the card; refer to `sb/intel/bd82x6x/pch.c:check_device_present()`) but doesn't seem to detect anything when actually scanning the downstream bus 03 on it (likely due to the missing clock)
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Change subject: mb/starlabs/starbook/{adl_n,mtl}: Don't configure GPE routes
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Patch Set 1: Code-Review+1
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