arclight

hello armbian developers recently i have tried to built my own kernel from linus' kernel tree(5.18.1). the build config i use cames from armbian 22.05 bullseye(5.15.43-sunxi) /boot/config-5.15.43-sunxi ,without any changes. the kernel was ok to boot,so i plan to add xr819 support for it，but after days of work，it seems not as easy as i thought. the driver ive tried is from here(https://github.com/karabek/xradio)，but it cant detect chip's hardware revision: [ 13.036884] xradio: XR819 device discovered [ 13.038054] xradio_wlan mmc1:0001:1: no mac address provided, using random [ 13.064445] xradio ERR: FWIO: Unknown hardware: -1. [ 13.064547] xradio ERR: BH: bh thread exiting [ 13.064893] xradio PM-DEV: xradio_pm_release but the stock armbian image works well(5.15.43-sunxi). so i have added a printk to make config reg value visible: ret = xradio_reg_read_32(hw_priv, HIF_CONFIG_REG_ID, &val32); printk(KERN_WARNING "xradio_wlan: read config reg value: 0x%x\n",val32); if (ret < 0) { xr_printk(XRADIO_DBG_WARN, "FWIO: can't read config register, err=%d.\n", ret); return ret; } on 5.15.43: [ 11.737046] xradio: XR819 device discovered [ 11.737725] xradio_wlan mmc1:0001:1: no mac address provided, using random [ 11.739304] xradio_wlan: read config reg value: 0x4005600 [ 11.920160] xradio: hardware vers. 7.9 [ 11.920199] xradio: firmware vers. 8 (WSM), build 5258, api 1060, cap 0x0003 [ 11.920217] xradio: Config USE_EXTENSIONS on 5.18.1: [ 13.036884] xradio: XR819 device discovered [ 13.038054] xradio_wlan mmc1:0001:1: no mac address provided, using random [ 13.039290] xradio_wlan: read config reg value: 0x4 [ 13.064445] xradio ERR: FWIO: Unknown hardware: -1. [ 13.064547] xradio ERR: BH: bh thread exiting [ 13.064893] xradio PM-DEV: xradio_pm_release it seems xradio_reg_read_32 will call xradio_reg_read , and it calls __xradio_read ... last call sdio_memcpy_fromio , so maybe upstream have changed some implementation of sdio?

i have encountered the same problem as yours. i have downloaded the latest armbian from release page(my board is OrangePi Zero),flash it into sd card,and wrote this overlay: /dts-v1/; /plugin/; / { compatible = "allwinner,sun8i-h3"; fragment@0 { target-path = "/aliases"; __overlay__ { spi0 = "/soc/spi@1c68000"; }; }; fragment@1 { target = <&spi0>; __overlay__ { #address-cells = <0>; #size-cells = <0>; status = "okay"; spidev { compatible = "spidev"; status = "okay"; reg = <0>; spi-max-frequency = <1000000>; }; }; }; }; after applying it using `sudo armbian-add-overlay spi0.dts`,it *seems* to be loaded correctly(i use a usb-serial wire to observe console log from on-board debugging serial,it shows "Applying user provided DT overlay spi1.dtbo" and no errors occurred),but when i logged in system,there were no /dev/spidev* show up. also, i have noticed there are some spi error in kernel log: [ 1.928114] sun6i-spi 1c68000.spi: chipselect 0 already in use [ 1.928149] spi_master spi0: spi_device register error /soc/spi@1c68000/flash@0 [ 1.928200] spi_master spi0: Failed to create SPI device for /soc/spi@1c68000/flash@0 when i change the spi0 to spi1 , the whole spi thing will not work,even if i have checked the `/proc/device-tree/soc/spi@1c690000/spidev/status` file is "okay"(and dmesg shows nothing related to spi). doesn't know what kinda thing happened. sorry for my pool English,i'm not a native English speaker. i wish these infomations will help the developer.