From: suijingfeng suijingfeng@loongson.cn
___________________ ____________________ | -------| | | | CRTC0 --> | DVO0 ------------------------> | 1024x600 DPI Panel | | _ _ -------| |____________________| | | | | | | i2c0 is not get used | |_| |_| | +------+ | <---->| i2c0 | | LSDC | +------+ | _ _ | +------+ | | | | | <---->| i2c1 |-----------+ | |_| |_| | +------+ | | | | | _________ | -------| +---------+ | | | | CRTC1 --> | DVO1 ---> | sii9022 | --> hdmi connector --> | Monitor | | -------| +---------+ |_________| |___________________|
The sii9022 tranmnitter working in tramsparent mode, that is the edid is read from the monitor directly, not through sil9022's ddc channel. The PMON firmware is responsible for consigure the sii9022 at boot time.
[1] https://wiki.debian.org/InstallingDebianOn/Lemote/Loongson2K1000
Signed-off-by: suijingfeng suijingfeng@loongson.cn Signed-off-by: Sui Jingfeng 15330273260@189.cn --- arch/mips/boot/dts/loongson/ls2k1000_pai.dts | 69 ++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 arch/mips/boot/dts/loongson/ls2k1000_pai.dts
diff --git a/arch/mips/boot/dts/loongson/ls2k1000_pai.dts b/arch/mips/boot/dts/loongson/ls2k1000_pai.dts new file mode 100644 index 000000000000..6c18280d2129 --- /dev/null +++ b/arch/mips/boot/dts/loongson/ls2k1000_pai.dts @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: GPL-2.0 + +/dts-v1/; + +#include "loongson64-2k1000.dtsi" + +/ { + model = "LS2K1000_PAI_UDB_V1.5"; + + memory@200000 { + compatible = "memory"; + device_type = "memory"; + // 238 MB at 2 MB + // 2GB - 512 MB at 2GB + 512 MB + // total 2 GB + reg = <0x00000000 0x00200000 0x00000000 0x0EE00000 + 0x00000000 0xA0000000 0x00000000 0x60000000 + 0x00000001 0x10000000 0x00000000 0x10000000>; + }; +}; + +&lsdc { + output-ports = <&dvo0 &dvo1>; + + #address-cells = <1>; + #size-cells = <0>; + + dvo0: dvo@0 { + /* 0 for connector 0 (DVO0) */ + reg = <0>; + connector = "dpi-connector"; + status = "ok"; + + display-timings { + native-mode = <&mode_0_1024x600_60>; + + mode_0_1024x600_60: panel-timing@0 { + clock-frequency = <51200000>; + hactive = <1024>; + vactive = <600>; + hsync-len = <4>; + hfront-porch = <160>; + hback-porch = <156>; + vfront-porch = <11>; + vback-porch = <23>; + vsync-len = <1>; + }; + + mode_1_800x480_60: panel-timing@1 { + clock-frequency = <30066000>; + hactive = <800>; + vactive = <480>; + hfront-porch = <50>; + hback-porch = <70>; + hsync-len = <50>; + vback-porch = <0>; + vfront-porch = <0>; + vsync-len = <50>; + }; + }; + }; + + dvo1: dvo@1 { + /* 1 for connector 1 (DVO1) */ + reg = <1>; + connector = "virtual-connector"; + status = "ok"; + }; +};