fdt get value xxx /soc@03000000/pinctrl@07022000/s_uart0@0/ allwinner,drive 3
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=> fdt get value xxx /soc@03000000/pinctrl@07022000/s_uart0@0/ allwinner,drive
=> print xxx
xxx=0x00000001
=> fdt get value xxx /soc@03000000/lcd0@01c0c000/ compatible
=> print xxx
xxx=allwinner,sunxi-lcd0
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=> fdt set /soc@03000000/lcd0@01c0c000/ lcd_x <1025>
=> fdt get value xxx /soc@03000000/lcd0@01c0c000/ lcd_x
=> print xxx
xxx=0x00000401
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fdt set /soc@03000000/lcd0@01c0c000/ lcd_x <1024>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_y <400>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_dclk_freq <35>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_hbp <170>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_ht <1344>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_hspw <20>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_vbp <20>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_vt <435>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_vspw <5>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_x <1024>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_y <600>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_dclk_freq <52>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_hbp <170>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_ht <1364>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_hspw <10>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_vbp <20>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_vt <635>
fdt set /soc@03000000/lcd0@01c0c000/ lcd_vspw <5>
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