cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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atmel,lcdc.txt (2401B)


      1Atmel LCDC Framebuffer
      2-----------------------------------------------------
      3
      4Required properties:
      5- compatible :
      6	"atmel,at91sam9261-lcdc" , 
      7	"atmel,at91sam9263-lcdc" ,
      8	"atmel,at91sam9g10-lcdc" ,
      9	"atmel,at91sam9g45-lcdc" ,
     10	"atmel,at91sam9g45es-lcdc" ,
     11	"atmel,at91sam9rl-lcdc" ,
     12	"atmel,at32ap-lcdc"
     13- reg : Should contain 1 register ranges(address and length).
     14	Can contain an additional register range(address and length)
     15	for fixed framebuffer memory. Useful for dedicated memories.
     16- interrupts : framebuffer controller interrupt
     17- display: a phandle pointing to the display node
     18
     19Required nodes:
     20- display: a display node is required to initialize the lcd panel
     21	This should be in the board dts.
     22- default-mode: a videomode within the display with timing parameters
     23	as specified below.
     24
     25Optional properties:
     26- lcd-supply: Regulator for LCD supply voltage.
     27
     28Example:
     29
     30	fb0: fb@00500000 {
     31		compatible = "atmel,at91sam9g45-lcdc";
     32		reg = <0x00500000 0x1000>;
     33		interrupts = <23 3 0>;
     34		pinctrl-names = "default";
     35		pinctrl-0 = <&pinctrl_fb>;
     36		display = <&display0>;
     37		#address-cells = <1>;
     38		#size-cells = <1>;
     39
     40	};
     41
     42Example for fixed framebuffer memory:
     43
     44	fb0: fb@00500000 {
     45		compatible = "atmel,at91sam9263-lcdc";
     46		reg = <0x00700000 0x1000 0x70000000 0x200000>;
     47		[...]
     48	};
     49
     50Atmel LCDC Display
     51-----------------------------------------------------
     52Required properties (as per of_videomode_helper):
     53
     54 - atmel,dmacon: dma controller configuration
     55 - atmel,lcdcon2: lcd controller configuration
     56 - atmel,guard-time: lcd guard time (Delay in frame periods)
     57 - bits-per-pixel: lcd panel bit-depth.
     58
     59Optional properties (as per of_videomode_helper):
     60 - atmel,lcdcon-backlight: enable backlight
     61 - atmel,lcdcon-backlight-inverted: invert backlight PWM polarity
     62 - atmel,lcd-wiring-mode: lcd wiring mode "RGB" or "BRG"
     63 - atmel,power-control-gpio: gpio to power on or off the LCD (as many as needed)
     64
     65Example:
     66	display0: display {
     67		bits-per-pixel = <32>;
     68		atmel,lcdcon-backlight;
     69		atmel,dmacon = <0x1>;
     70		atmel,lcdcon2 = <0x80008002>;
     71		atmel,guard-time = <9>;
     72		atmel,lcd-wiring-mode = <1>;
     73
     74		display-timings {
     75			native-mode = <&timing0>;
     76			timing0: timing0 {
     77				clock-frequency = <9000000>;
     78				hactive = <480>;
     79				vactive = <272>;
     80				hback-porch = <1>;
     81				hfront-porch = <1>;
     82				vback-porch = <40>;
     83				vfront-porch = <1>;
     84				hsync-len = <45>;
     85				vsync-len = <1>;
     86			};
     87		};
     88	};