On 13/03/2024 16:53, Dmitry Baryshkov wrote: > On Wed, 13 Mar 2024 at 17:09, Marc Gonzalez wrote: > >> On 05/03/2024 20:20, Kalle Valo wrote: >> >>> Marc Gonzalez wrote: >>> >>>> I need to build a kernel + rootfs + FW to test the proposed solution, >>>> then I can spin a formal submission. >>> >>> Yeah, please do test this to make sure we are not missing anything :) >> >> I used buildroot ( https://buildroot.org ) to generate a kernel + rootfs >> for my board (a variation of qcom/msm8998-mtp.dts) >> >> Not sure if I must use the vendor FW blobs? Or if I can use the blobs >> from linux-firmware-20240115.tar.xz (as supported by BR2). >> >> >> All I see from the ath10k driver (with debugging cranked to the max) is: >> >> [ 0.539801] ath10k_snoc 18800000.wifi: Adding to iommu group 0 >> [ 0.541941] ath10k_snoc 18800000.wifi: snoc xo-cal-data return -22 >> [ 0.543633] ath10k_snoc 18800000.wifi: supply vdd-3.3-ch1 not found, using dummy regulator >> [ 0.544002] ath10k_snoc 18800000.wifi: qmi msa.paddr: 0x0000000094400000 , msa.vaddr: 0x(____ptrval____) >> [ 0.544271] ath10k_snoc 18800000.wifi: snoc probe >> >> >> # ip link >> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1000 >> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 >> 2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 >> link/ether 34:27:92:82:48:ec brd ff:ff:ff:ff:ff:ff >> >> No wlan device at this point. > > Do you have pd-mapper, rmtfs and tqftpserv running? You also need to > have wlanmdsp.mbn in the same directory as modem.mbn for your platform > (see how this is handled for sdm845). > If these points are implemented and you still don't have the wlan, > please check for tqftpserv messages in syslog. I first tried using buildroot, which doesn't package these tools AFAICT. I have now generated a debian rootfs, which does package them. >> I got shell-shock from reading these setup steps: >> >> https://wiki.postmarketos.org/wiki/Qualcomm_Snapdragon_835_(MSM8998)#WLAN >> https://github.com/jhugo/linux/blob/5.5rc2_wifi/README > > These readmes are mostly correct. You don't need qrtr now, it is > provided by the kernel. pd-mapper (protection-domain-mapper), > tqftpserv and rmtfs usually can be installed from your distro. Can you explain a little bit why all the steps are required just to be able to talk to the ath10k IP block? It's just an MMIO device, right? wifi: wifi@18800000 { compatible = "qcom,wcn3990-wifi"; reg = <0x18800000 0x800000>; reg-names = "membase"; Is the IP block behind some kind of switch that must be programmed by a remote processor on the SoC? Regards
