http://linux-sunxi.org/GR8
http://linux-sunxi.org/User:Ixnus
GR8 is a SiP with ARM Cortex A7 CPU (A13/R8) and integrated 256MB DDR3 RAM produced by NextThingCo / Allwinner.
芯片手册: GR8_Datasheet_v1.0.pdf
https://github.com/torvalds/linux/blob/master/arch/arm/boot/dts/axp209.dtsi
https://github.com/torvalds/linux/blob/master/arch/arm/boot/dts/sun5i.dtsi
https://github.com/torvalds/linux/blob/master/arch/arm/boot/dts/sun5i-gr8.dtsi
https://github.com/torvalds/linux/blob/master/arch/arm/boot/dts/sun5i-gr8-evb.dts
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GR8 内部还 SIP 了一个 AXP209:
backlight: backlight {
compatible = "pwm-backlight";
pwms = <&pwm 0 10000 0>;
enable-gpios = <&axp_gpio 1 GPIO_ACTIVE_HIGH>;brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
default-brightness-level = <8>;
};
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这些外国人怎么那么牛,一下子就定制个芯片
应该要量吧, 这里面把 DRAM 和 AXP209 都封进去了, 不发热吗? 只供一个 5V 电源就可以工作了?
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