On Wed, Feb 17, 2016 at 4:06 PM, Laszlo Fiat <laszlo.fiat@xxxxxxxxx> wrote: > Hello, > > The SDIO wifi card is not detected in my Baytrail tablet with 4.5-RC kernels, > which worked fine with pre-4.5 kernels. > > Kernel v4.0-4.4 versions worked nicely: > > $ grep mmc dmesg-4.4.0-rc2-next-20151127.txt > [ 2.421329] mmc0: SDHCI controller on ACPI [80860F14:00] using ADMA > [ 2.425847] mmc1: SDHCI controller on ACPI [INT33BB:00] using ADMA > [ 2.431164] mmc2: SDHCI controller on ACPI [80860F14:02] using ADMA > [ 2.561342] mmc0: MAN_BKOPS_EN bit is not set > [ 2.569496] mmc0: new HS200 MMC card at address 0001 > [ 2.571164] mmcblk0: mmc0:0001 032GE4 29.1 GiB > [ 2.571453] mmcblk0boot0: mmc0:0001 032GE4 partition 1 4.00 MiB > [ 2.571655] mmcblk0boot1: mmc0:0001 032GE4 partition 2 4.00 MiB > [ 2.571863] mmcblk0rpmb: mmc0:0001 032GE4 partition 3 4.00 MiB > [ 2.573835] mmcblk0: p1 p2 p3 p4 p5 p6 > [ 2.647372] mmc1: new high speed SDIO card at address 0001 > [ 2.812340] mmc2: new high speed SDXC card at address 0001 > [ 2.812719] mmcblk1: mmc2:0001 00000 59.6 GiB > > With v4.5: > > $ grep mmc dmesg-4.5.0-rc4.txt > [ 2.678828] mmc0: SDHCI controller on ACPI [80860F14:00] using ADMA > [ 2.683332] mmc1: SDHCI controller on ACPI [INT33BB:00] using ADMA > [ 2.705315] mmc2: SDHCI controller on ACPI [80860F14:02] using ADMA > [ 2.850013] mmc2: new high speed SDXC card at address 0001 > [ 2.858675] mmcblk0: mmc2:0001 00000 59.6 GiB > [ 2.871384] mmc0: MAN_BKOPS_EN bit is not set > [ 2.883166] mmc0: new HS200 MMC card at address 0001 > [ 2.883725] mmcblk1: mmc0:0001 032GE4 29.1 GiB > [ 2.884029] mmcblk1boot0: mmc0:0001 032GE4 partition 1 4.00 MiB > [ 2.884322] mmcblk1boot1: mmc0:0001 032GE4 partition 2 4.00 MiB > [ 2.884518] mmcblk1rpmb: mmc0:0001 032GE4 partition 3 4.00 MiB > [ 2.886442] mmcblk1: p1 p2 p3 p4 p5 p6 > > Notice that the following line is missing with v4.5: > > mmc1: new high speed SDIO card at address 0001 > > And of course the out-of-tree wifi driver (rtl8723bs) cannot find the > hardware with kernel v4.5. > > The hardware is a Teclast X80h Baytrail tablet. > Cpu: Intel(R) Atom(TM) CPU Z3735F > > I've opened a bug report for it: > https://bugzilla.kernel.org/show_bug.cgi?id=112571 > > The full dmesg of 4.5-rc4 is available in the bug report. I noticed the same on a imx6q-cubox-i board: the Broadcom Wifi chip could not be detected with 4.5-rc. Haven't had a chance to debug this yet. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
