> On Sat, Dec 17, 2016 at 12:14:50PM +0100, Pali Rohár wrote: > > > [1] http://notaz.gp2x.de/misc/pnd/wl1251/nvs_map.txt > > In that description is something about STA mac address: > > 019 02 //length > > 01a 6d //STA_ADDR_L Register Address. (STA MAC > > Address) > > 01b 54 // > > 01c 00 //STA_ADDR_L Register > > 01d 00 // > > 01e 32 // > > 01f 28 // > > 020 00 //STA_ADDR_H Register Data. 021 08 // 022 00 // 023 00 // So... above data means: 019 - number of words 01a - low bits of offset applied with mask 0xfe 01b - high bits of offset 01c-01f first word 020-023 second word Interpreted as: at address offset 0x536c are written two words 0x28320000 and 0x00000800 wl1271 driver has in linux/drivers/net/wireless/ti/wlcore/boot.c this: /* update current MAC address to NVS */ nvs_ptr[11] = wl->addresses[0].addr[0]; nvs_ptr[10] = wl->addresses[0].addr[1]; nvs_ptr[6] = wl->addresses[0].addr[2]; nvs_ptr[5] = wl->addresses[0].addr[3]; nvs_ptr[4] = wl->addresses[0].addr[4]; nvs_ptr[3] = wl->addresses[0].addr[5]; Looking at wl1271-nvs.bin file (which is "modified" in kernel by boot.c) 000: 01 001: 6d 002: 54 003: 00 004: 00 005: ef 006: be Means: at address offset 0x536c is written one word 0xBEEF0000 007: 01 008: 71 009: 54 00a: ad 00b: de 00c: 00 00d: 00 Means: at address offset 0x5371 is written one word 0x0000DEAD Above boot.c kernel code updates those data to MAC address, so at address offset 0x536c is written four low bytes of MAC address and to 0x5371 are written remaining two bytes. So 00:00:DE:AD:BE:EF So conclusion: address offset for wl1271 (where is written MAC address) is exactly same as for wl1251 which is marked in that documentation as STA_ADDR_L Register. Btw, in our wl1251-nvs.bin found in Maemo rootfs, which is exactly same as in linux-firmware.git tree there are those data: 019: 02 01a: 6d 01b: 54 01c: 09 01d: 03 01e: 07 01f: 20 020: 00 021: 00 022: 00 023: 00 So hardcoded MAC address in wl1251-nvs.bin is: 00:00:20:07:03:09. Which is assigned to DIAB. Strange that it is not TI... -- Pali Rohár pali.rohar@xxxxxxxxx
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