Hey there; answer is inline too. Thanks for picking this up! On 8/14/21 3:54 PM, Tomasz Maciej Nowak wrote: > Hi, > one comment inline. > > W dniu 14.08.2021 o 14:33, Jan-Niklas Burfeind pisze: >> [...] >> + partitions { >> + compatible = "fixed-partitions"; >> + #address-cells = <1>; >> + #size-cells = <1>; >> + >> + uboot: partition@0 { >> + label = "u-boot"; >> + reg = <0x000000 0x020000>; > > Is this really the size of the U-Boot? According to the sources of > U-Boot [1] the max size of bootloader is 64KiB. If the sources don't > lie, what's between 0x10000-0x20000? Is that some hardcoded data or > U-Boot environment? If it's the environment, You can't use static > address of the MAC in nvmem-cells, because it can move around if someone modified the environment. For that You'll need to extract it in > userspace. > > 1. https://github.com/OnionIoT/uboot/blob/684829a3a89eabca4b573530e89d60faed277dee/Makefile#L31 > uboot knows it is 64KiB, printenv yields uboot_size=0x10000 It further knows, firmware starts not before 128Kib: firmware_addr=0x9F020000
these are the last lines of mtd0: 000f8d0 ffff ffff ffff ffff ffff ffff ffff ffff * 001fc00 40a3 6bc1 10b2 ffff ffff ffff ffff ffff 001fc10 ffff ffff ffff ffff ffff ffff ffff ffff * 001fd00 4f4d 4547 41ff ffff ffff ffff ffff ffff 001fd10 ffff ffff ffff ffff ffff ffff ffff ffff * 0020000 The six bytes at 001fc00 are the macaddress. The six bytes at 001fd00 spell OMEGA. >> + read-only; >> + compatible = "nvmem-cells"; >> + #address-cells = <1>; >> + #size-cells = <1>; >> + >> + macaddr_uboot_1fc00: macaddr@1fc00 { >> + reg = <0x1fc00 0x6>; >> + }; >> + }; >> + >> + partition@20000 { >> + compatible = "tplink,firmware"; >> + label = "firmware"; >> + reg = <0x020000 0xfd0000>; >> + }; >> + >> + art: partition@ff0000 { >> + label = "art"; >> + reg = <0xff0000 0x010000>; >> + read-only; >> + }; >> + }; >> + }; >> +}; >> + >> +&wmac { >> + status = "okay"; >> + >> + mtd-cal-data = <&art 0x1000>; >> + nvmem-cells = <&macaddr_uboot_1fc00>; >> + nvmem-cell-names = "mac-address"; >> +}; > > [ snip ] > > Regards > _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel