Hi! On Wed, Aug 14, 2019 at 4:59 PM Michal Cieslakiewicz <michal.cieslakiew...@wp.pl> wrote: > /etc/hotplug.d/firmware/10-ath9k-eeprom for these routers just extracts > 4k of calibration data from ART to bin file in /lib/firmware. I > compared bin file to mtd area and they are identical. Why ath9k cannot > use this data directly accessing /dev/mtd6? Is that 'mtd-cal-data' dts > option for? If so, why does it not work in this case? (tested, ath9k > initialization ends with error)
mtd-cal-data is part of a local hack for wmac devices only: https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=package/kernel/mac80211/patches/ath/552-ahb_of.patch;h=1170fc64bd9092d374ee78285060b504a699b720;hb=HEAD It loads calibration data and create an ath9k_platform_data struct. >I recall there was no such operation in ar71xx target In ar71xx, calibration data is loaded through ath9k_platform_data for newer wifi cards and for older cards, there's a piece of code feeding caldata in arch/mips/ath79/pci-ath9k-fixup.c before ath9k loads (in ath79 and lantiq this is replaced by owl-loader). Regards, Chuanhong Guo _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
