Re: Getting a stable MAC address for a RPI CM3+ with ue0 interface
Date: Thu, 21 Sep 2023 05:35:19 UTC
HI all,
> Am 21.09.2023 um 06:09 schrieb Mark Millard <marklmi@yahoo.com>:
> sysctl -b hw.fdt.dtb | dtc -I dtb -s > current_sorted.dts
Without the explicit "force_mac_address" line I find this in the output:
-----------------
aliases {
i2c_arm = "/soc/i2c@7e804000";
i2c = "/soc/i2c@7e804000";
i2c_vc = "/soc/i2c0mux/i2c@0";
serial0 = "/soc/serial@7e201000";
serial1 = "/soc/serial@7e215040";
aux = "/soc/aux@7e215000";
sound = "/soc/sound";
soc = "/soc";
dma = "/soc/dma@7e007000";
intc = "/soc/interrupt-controller@7e00b200";
watchdog = "/soc/watchdog@7e100000";
random = "/soc/rng@7e104000";
mailbox = "/soc/mailbox@7e00b880";
gpio = "/soc/gpio@7e200000";
uart0 = "/soc/serial@7e201000";
uart1 = "/soc/serial@7e215040";
sdhost = "/soc/mmc@7e202000";
mmc = "/soc/mmc@7e300000";
mmc1 = "/soc/mmc@7e300000";
mmc0 = "/soc/mmc@7e202000";
i2s = "/soc/i2s@7e203000";
i2c0 = "/soc/i2c0mux/i2c@0";
i2c1 = "/soc/i2c@7e804000";
i2c10 = "/soc/i2c0mux/i2c@1";
spi0 = "/soc/spi@7e204000";
spi1 = "/soc/spi@7e215080";
spi2 = "/soc/spi@7e2150c0";
usb = "/soc/usb@7e980000";
leds = "/leds";
fb = "/soc/fb";
thermal = "/soc/thermal@7e212000";
axiperf = "/soc/axiperf";
i2c2 = "/soc/i2c@7e805000";
};
chosen {
fixup-applied;
u-boot,version = "2023.07.02";
user-warnings = [64 74 65 72 72 6f 72 3a 20 63 61 6e 27 74 20 66 69 6e 64 20 73 79 6d 62 6f 6c 20 27 75 61 72 74 30 5f 70 69 6e 73 27 0a 46 61 69 6c 65 64 20 74 6f 20 72 65 73 6f 6c 76 65 20 6f 76 65 72 6c 61 79 20 27 64 69 73 61 62 6c 65 2d 62 74 27 0a];
rng-seed = <0x17f7438c 0x2ab979c8 0xc4352759 0x305da3e8 0x4304ea0a 0x6ce10bfb 0xa633ae6 0xcada5dfc 0x854eeecb 0x925b
1f20 0x12bdb423 0x1ebbf917 0x4b434ef3 0x21939e04 0x4ee3dcc7 0xe3f5af57>;
kaslr-seed = <0x64f204d4 0x19ed2123>;
os_prefix;
overlay_prefix = [6f 76 65 72 6c 61 79 73 2f];
rpi-boardrev-ext = <0x0>;
log = <0x3ff80000 0x7ffe0>;
bootargs = "coherent_pool=1M snd_bcm2835.enable_headphones=0 snd_bcm2835.enable_hdmi=1 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708_fb.fbswap=1 smsc95xx.macaddr=B8:27:EB:09:CB:7D vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 force_mac_address=b8:27:eb:09:cb:7d";
phandle = <0x2f>;
bootloader {
boot-mode = <0x1>;
tryboot = <0x0>;
rsts = <0x1000>;
partition = <0x0>;
};
};
-----------------
The MAC address shown in the "bootargs" line is matching the serial number of the CM.
What now?
Kind regards,
Patrick