Hi Eddie, On 18 April 2017 at 08:53, Eddie Cai <[email protected]> wrote: > > > 2017-04-18 12:01 GMT+08:00 Simon Glass <[email protected]>: >> >> Hi Jonas, >> >> On 17 April 2017 at 15:13, Jonas Karlman <[email protected]> wrote: >> > Set ethernet mac address in late init for Tinker Board, >> > prevents getting a random mac address each boot. >> > >> > Read mac address from eeprom, first 6 bytes from 0x50 on i2c2. >> > Same as /etc/init.d/rockchip.sh on Tinker OS. >> > >> > Signed-off-by: Jonas Karlman <[email protected]> >> > --- >> > >> > board/rockchip/tinker_rk3288/tinker-rk3288.c | 26 >> ++++++++++++++++++++++++++ >> > 1 file changed, 26 insertions(+) >> > >> > diff --git a/board/rockchip/tinker_rk3288/tinker-rk3288.c >> b/board/rockchip/tinker_rk3288/tinker-rk3288.c >> > index 79541a3939..48165b2545 100644 >> > --- a/board/rockchip/tinker_rk3288/tinker-rk3288.c >> > +++ b/board/rockchip/tinker_rk3288/tinker-rk3288.c >> > @@ -5,3 +5,29 @@ >> > */ >> > >> > #include <common.h> >> > +#include <i2c.h> >> > +#include <netdev.h> >> > + >> > +int rk_board_late_init(void) >> > +{ >> > + struct udevice *dev; >> > + int ret; >> > + u8 mac[6]; >> > + >> > + ret = i2c_get_chip_for_busnum(2, 0x50, 1, &dev); >> > + if (ret) { >> > + debug("failed to get eeprom\n"); >> > + return 0; >> > + } >> >> I'm sure this works, but really we should have this chip mentioned in the >> device tree under &i2c2. Then we should be able to use the i2c_eeprom >> driver. I cannot see this board supported in Linux to figure out how it >> does it there. >> >> I think tinker is the CHIP board, right? Are there instructions somewhere >> on how to load U-Boot onto it? > > tinker board is made by Asus. it use sd card as its boot media. to build > U-Boot for tinker board > CROSS_COMPILE=arm-linux-gnueabihf- make tinker-rk3288_defconfig all -j4 > tools/mkimage -n rk3288 -T rksd -d spl/u-boot-spl-dtb.bin out > cat u-boot-dtb.bin >> out > to flash u-boot, mount sd card to your host PC. use below command. (please > make sure /dev/sdb is the mount point of your sd card) > sudo dd if=out of=/dev/sdb seek=64 conv=notrunc
Thanks for the info, will live it a try. What do you think about doing a patch for README.rockchip with this info? [...] Regards, Simon _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
