<naoki>
The sdmmc node already have a "&sdmmc_det" for pinctrl which switch the GPIO0A4 to sdmmc detect function, no need to define a separate "cd-gpios".
<naoki>
this should be true
<naoki>
but from my experience, it doesn't work as intended on many boards I have
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<qschulz>
naoki: this was a controversial patch series, and no I don't think Kever tested it
<qschulz>
we had a long argument to patch things in U-Boot so that CD-less connectors could work
<naoki>
broken-cd is for CD-less connector
<naoki>
as you know, if both properties are not available, it works only when SD card is inserted before booting
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<mmind00>
naoki: just checked on my rock5b ... looks like you're correct ... sd-card removal and insert don't work on the 5b right now ... reverting the patch, resolves that
<naoki>
I don't know why "&sdmmc_det" is not working. bug in driver?
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<robmur01>
sounds like the same thing I had with RK3399 5 years ago - I've forgotten the details now, but based on what I wrote in the patch I think it was more than just the usual runtime PM hilarity
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<mmind00>
robmur01: do you have a link to said patch? ... I have this fleeting memory of having seen this issue as well, but everything is way foggy
<naoki>
as far as I can remember, it's not only for RK3588
<qschulz>
naoki: I know about broken-cd, but the SoC doesn't, so it switches to JTAG mode if the sdmmc_detect pin is in a specific state, some other pins are muxed in some SDMMC function AND the jtag_enable bitfield is set to 1
<mmind00>
robmur01: "arm64: dts: rockchip: 'Fix' nanopi4 uSD card detect" found it
<mmind00>
naoki: would you mind sending a revert for the commit switching to sd_detect?
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<qschulz>
naoki: aren't the eMMC and SPI chips detected anyway? Why can't we have just one DTS for both with both enabled?
<naoki>
qschulz: pinctrl doesn't work well (override previous configuration) e.g. when SPL is on SPI, it's booted from SPI. then, SPL try to load TF-A/U-Boot from SPI, but if eMMC is enabled, pinctrl is configured for eMMC, loading TF-A/U-Boot from SPI will be failed
<naoki>
I'm not sure there is a way to probe SPI/eMMC to detect which module is mounted
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<naoki>
I guess it's technically possible, but it needs a lot of things to do...
<qschulz>
naoki: oh, it's the same pins for SPI and eMMC but in different mux?
<naoki>
about RK3588"S", yes
<qschulz>
naoki: ah dang. You could detect which medium was used to boot TPL and pass this info to later stages
<qschulz>
naoki: then apply a DTBO in TPL for SPL or SPL for U-Boot proper, but yeah, it is technically possible, no clue if someone has done it already
<naoki>
Kwiboo: I could enable OTG port (USB3 upper port) as host port with some modification (w/o otg regulator...) to rk3588s-rock-5a-u-boot.dtsi
<naoki>
lower USB3 port is not working :(
<Kwiboo>
naoki: ahh, will re-test some time later, was sure all ports was working last time I tested it, but that may have been some time ago now or I misremember ;-)
<naoki>
Kwiboo: vcc5v0_host need to be off?
<naoki>
hmm, at least always-on is wrong? it can be off
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<Kwiboo>
could have been dropping use of always-on that "fixed" use of usb port, has been the case on some boards I have tested
<Net147>
I noticed on Rock 4 SE the serial output often shows garbage (usually when the sound is enabled), but when using Rock 4 C+ there are no issues. has anyone else observed the same?
<naoki>
hmm, I still cannot enable lower port...
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<naoki>
"cannot reset port 2!?" :(
<naoki>
Kwiboo: I'll try your patch
<naoki>
oh?
<naoki>
Kwiboo: you cannot use PCIE20_2/SASTA30_2/USB30_2 same time
<naoki>
ok, I'm confusing. I'm going to bed now!
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