Board Config

Explanation

DDR:

We use opensource idbloader(See Boot_option)  on some chips (rk3036, rk3288) and its dmc driver can't support ddr-type autodetct, which will make the board failed to enter u-boot.

PMIC:

PMIC setting in u-boot don't have much matter. Just for the board using rk818, USB input current should be configured during boot stage.

Boot:

Please note some board have disable emmc in u-boot though the hardware actually have emmc. (firefly-rk3288）

 

Board config

defconfig and dts

Every Board has its device tree file and config file required by the kernel and uboot. Therefore, you will need to choose the correct dts and config to build the source.Below list various Boards and the matching file.

board	uboot	kernel config	kernel dts	Hardware
				DDR	PMIC	Boot
rk3288-evb	evb-rk3288_defconfig	rockchip_linux_defconfig	rk3288-evb-act8846.dts or rk3288-evb-rk808.dts	mostly LPDDR3	act8846	emmc boot
rk3288-fennec	fennec-rk3288_defconfig	rockchip_linux_defconfig	rk3288-fennec.dts	LPDDR3	rk808	emmc boot
rk3288-miniarm	tinker-rk3288_defconfig	rockchip_linux_defconfig	rk3288-miniarm.dts	LPDDR3	rk808	sd-card boot
rk3288-firefly	firefly-rk3288_defconfig	rockchip_linux_defconfig	rk3288-firefly.dts	DDR3	rk808	sd-card boot
rk3288-phytec	phtec-rk3288_defconfig	rockchip_linux_defconfig	rk3288-phytec-rdk.dts	DDR3	rk818	emmc boot
rk3328-evb	evb-rk3328_defconfig	rockchip_linux_defconfig	rk3328-evb.dts	LPDDR3	rk805	emmc boot
rk3399-excavator	evb-rk3399_defconfig	rockchip_linux_defconfig	rk3399-sapphire-excavator-linux.dts	LPDDR4	rk808	emmc boot
rk3399-firefly	firefly-rk3399_defconfig	rockchip_linux_defconfig	rk3399-firefly-linux.dts	LPDDR4	rk808	emmc boot
rk3036-kylin	kylin-rk3036_defconfig	rockchip_linux_defconfig	rk3036-kylin.dts	LPDDR3	rk808	emmc boot

 

Config Per Chip

chip	Kernel eMMC index	Kernel SD index	Uboot eMMC index	Uboot SD index	Baud speed
rk3399	1	0	0	1	1500000
rk3328	2	0	0	1	1500000
rk3288	2	0	0	1	115200
rk3036	2	0	0	-	115200

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