Difference between revisions of "FAQ"
From Rockchip open source Document
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PMIC: | PMIC: | ||
| − | PMIC setting usually doesn't matter in u-boot, but for the board with rk818, [https://github.com/rockchip-linux/u-boot/blob/release/arch/arm/mach-rockchip/rk3288-board-spl.c#L172 USB input current] should be configured | + | PMIC setting usually doesn't matter in u-boot, but for the board with rk818, [https://github.com/rockchip-linux/u-boot/blob/release/arch/arm/mach-rockchip/rk3288-board-spl.c#L172 USB input current] should be configured before enter u-boot. |
Boot: | Boot: | ||
| − | + | Some board have disable emmc in u-boot for convenience, though the hardware actually have emmc, please note it. (firefly-rk3288） | |
Latest revision as of 07:42, 11 October 2017
How to select board config
DDR:
We use opensource idbloader(See Boot_option) on some chips (rk3036, rk3288) and its dmc driver can't support ddr-type autodetct, so the wrong ddr dts settings will make the board failed to enter u-boot.
PMIC:
PMIC setting usually doesn't matter in u-boot, but for the board with rk818, USB input current should be configured before enter u-boot.
Boot:
Some board have disable emmc in u-boot for convenience, though the hardware actually have emmc, please note it. (firefly-rk3288）
