12d1951feSAndy YanHere is the step-by-step to boot U-Boot on rv1108 evb. 22d1951feSAndy Yan 32d1951feSAndy Yan 42d1951feSAndy YanCompile U-Boot 52d1951feSAndy Yan=========================== 6*53cb8384SAndy Yan > make CROSS_COMPILE=arm-linux-gnueabihf- evb-rv1108_defconfig all 7*53cb8384SAndy Yan > ./tools/mkimage -n rv1108 -T rksd -d ./out/u-boot-spl.bin spl.bin 8*53cb8384SAndy Yan You can also use the ddr bin from rockchip official release [0] instead of u-boot-spl: 9f1e236acSAndy Yan > ./tools/mkimage -n rv1108 -T rksd -d ../rkbin/rv1x/rv1108ddr_v1.00.bin spl.bin 102d1951feSAndy Yan > cat spl.bin u-boot.bin > u-boot.img 112d1951feSAndy Yan 122d1951feSAndy YanFlash the image by rkdeveloptool 132d1951feSAndy Yan================================ 142d1951feSAndy Yanrkdeveloptool can get from https://github.com/rockchip-linux/rkdeveloptool.git 152d1951feSAndy Yan 162d1951feSAndy YanPower on(or reset with RESET KEY) with MASKROM KEY preesed, and then: 17f1e236acSAndy Yan > rkdeveloptool db ./rkbin/rv1x/rv1108usbboot_v1.00.bin 182d1951feSAndy Yan > rkdeveloptool wl 0x40 u-boot.img 192d1951feSAndy Yan > rkdeveloptool RD 202d1951feSAndy Yan 212d1951feSAndy Yan 22*53cb8384SAndy YanYou should be able to get U-Boot log message from boot console with baudrate 1500000: 23*53cb8384SAndy Yan 24*53cb8384SAndy YanU-Boot SPL board initReturning to boot ROM... 252d1951feSAndy Yan 262d1951feSAndy Yan 27*53cb8384SAndy YanU-Boot 2017.09-01119-gc3ef4c0-dirty (Feb 06 2018 - 10:04:12 +0800) 282d1951feSAndy Yan 292d1951feSAndy YanModel: Rockchip RV1108 Evaluation board 30*53cb8384SAndy YanDRAM: 256 MiB 31*53cb8384SAndy YanAPLL: 400000000 DPLL:798000000 GPLL:384000000 322d1951feSAndy YanMMC: 332d1951feSAndy YanUsing default environment 342d1951feSAndy Yan 352d1951feSAndy YanIn: serial@10210000 362d1951feSAndy YanOut: serial@10210000 372d1951feSAndy YanErr: serial@10210000 38*53cb8384SAndy YanModel: Rockchip RV1108 Evaluation board 392d1951feSAndy YanNet: No ethernet found. 402d1951feSAndy YanHit any key to stop autoboot: 0 412d1951feSAndy Yan=> 42*53cb8384SAndy Yan 43*53cb8384SAndy Yan 44*53cb8384SAndy Yan 45*53cb8384SAndy Yan[0] git clone https://github.com/rockchip-linux/rkbin.git 46