[PATCH v14 2/6] MIPS: Loongson64: introduce board specific dts and add model property

From: Sui Jingfeng
Date: Fri Apr 01 2022 - 12:41:53 EST

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This patch introduce three dts which are board specific and each of them
is assigned a model property according to the board name printed on the
top overlay of the PCB.

The model property added can be used to provide board specific information,
mips kernel use it as machine name. For example:

$ cat /proc/cpuinfo

system type : Generic Loongson64 System
machine : LX-6901 <-------------------- notice here
processor : 0
cpu model : ICT Loongson-3 V0.1 FPU V0.1
BogoMIPS : 3594.02
tlb_entries : 2112
isa : mips64r2
ASEs implemented : vz msa loongson-ext2
...

1) ls3A4000 evaluation board

The board name is LS3A4000_7A1000_EVB_BOARD_V1.4, it consist of 1.8Ghz
mips64r5 4-core CPU and LS7A1000 bridge chip. It has a PCIe GEN2 x8
slot, therefore can play with discrete graphics card.

While the integrated display copntroller is equipped with a VGA output
and a DVI output, the VGA is connect to the DVO0 output port of the
display controller, the DVI is connected to DVO1 output port of the
display controller.

+------+ +-----------------------------------+
| DDR4 | | +-------------------+ |
+------+ | | PCIe Root complex | LS7A1000 |
|| MC0 | +--++---------++----+ |
+----------+ HT 3.0 | || || |
| LS3A4000 |<-------->| +---++---+ +--++--+ +---------+ +------+
| CPU |<-------->| | GC1000 | | LSDC |<-->| DDR3 MC |<->| VRAM |
+----------+ | +--------+ +-+--+-+ +---------+ +------+
|| MC1 +---------------|--|----------------+
+------+ | |
| DDR4 | +-------+ DVO0 | | DVO1 +------+
+------+ VGA <--|ADV7125|<--------+ +-------->|TFP410|--> DVI/HDMI
+-------+ +------+

2) lemote A1901 motherboard

This board is made by LEMOTE corporation, it have two names, one is
LX-6901, another is A1901. This board has only one VGA output which
is connected to the DVO1 of the display controller.

+------+ +-----------------------------------+
| DDR4 | | +-------------------+ |
+------+ | | PCIe Root complex | LS7A1000 |
|| MC0 | +--++---------++----+ |
+----------+ HT 3.0 | || || |
| LS3A4000 |<-------->| +---++---+ +--++--+ +---------+ +------+
| CPU |<-------->| | GC1000 | | LSDC |<-->| DDR3 MC |<->| VRAM |
+----------+ | +--------+ +-+--+-+ +---------+ +------+
|| MC1 +---------------|--|----------------+
+------+ | |
| DDR4 | DVO0 is not get used | | DVO1 +-------+
+------+ <--------------------+ +-------->|ADV7125|---> VGA
+-------+

3) ls2k1000 pai evaluation board

ls2k1000 is a two core 1.0Ghz Mips64r2 compatible SoC, despite very
slow, a few display dridge drivers and display panel drivers can only
be tested on this board. We provide a minimal support on this patch.
___________________ ____________________
| -------| | |
| CRTC0 --> | DVO0 ------------------------> | 1024x600 DPI Panel |
| _ _ -------| | Which panel to use |____________________|
| | | | | | | with this board is a ___________________
| |_| |_| | | choice of the user | |
| | +--------------------> | 800x480 DPI Panel |
| DC In LS2K1000 | |___________________|
| _ _ | +------+
| | | | | <---->| i2c1 |-----------+
| |_| |_| | +------+ |
| | | <--- config | DDC _________
| -------| +---------+ | | |
| CRTC1 --> | DVO1 ---> | sii9022 | --> HDMI connector --> | Monitor |
| -------| +---------+ |_________|
|___________________|

The sii9022 HDMI transmitter working in transparent mode, because the
PCB designer make the board working in this way. In this case the EDID
is read from the monitor via the i2c1 directly, not through sii9022's
ddc channel. The i2c0 is not get used by lsdc driver for this board.

Signed-off-by: Sui Jingfeng <15330273260@xxxxxx>
---
arch/mips/boot/dts/loongson/Makefile | 4 +
arch/mips/boot/dts/loongson/lemote_a1901.dts | 96 ++++++++++++
.../boot/dts/loongson/ls2k1000_pai_udb.dts | 107 ++++++++++++++
.../boot/dts/loongson/ls3a4000_7a1000_evb.dts | 138 ++++++++++++++++++
4 files changed, 345 insertions(+)
create mode 100644 arch/mips/boot/dts/loongson/lemote_a1901.dts
create mode 100644 arch/mips/boot/dts/loongson/ls2k1000_pai_udb.dts
create mode 100644 arch/mips/boot/dts/loongson/ls3a4000_7a1000_evb.dts

diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile
index 5c6433e441ee..c60acbafbfce 100644
--- a/arch/mips/boot/dts/loongson/Makefile
+++ b/arch/mips/boot/dts/loongson/Makefile
@@ -6,4 +6,8 @@ dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_8core_rs780e.dtb
dtb-$(CONFIG_MACH_LOONGSON64) += loongson64g_4core_ls7a.dtb
dtb-$(CONFIG_MACH_LOONGSON64) += loongson64v_4core_virtio.dtb

+dtb-$(CONFIG_MACH_LOONGSON64) += ls2k1000_pai_udb.dtb
+dtb-$(CONFIG_MACH_LOONGSON64) += lemote_a1901.dtb
+dtb-$(CONFIG_MACH_LOONGSON64) += ls3a4000_7a1000_evb.dtb
+
obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/loongson/lemote_a1901.dts b/arch/mips/boot/dts/loongson/lemote_a1901.dts
new file mode 100644
index 000000000000..880bb9153c03
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/lemote_a1901.dts
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64g-package.dtsi"
+#include "ls7a-pch.dtsi"
+
+/ {
+ model = "LX-6901";
+
+ vga-encoder {
+ compatible = "adi,adv7123", "dumb-vga-dac";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ adv7123_in: endpoint {
+ remote-endpoint = <&dc_out_rgb1>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ adv7123_out: endpoint {
+ remote-endpoint = <&vga_connector_in>;
+ };
+ };
+ };
+ };
+
+ vga-connector {
+ compatible = "vga-connector";
+ label = "vga";
+
+ ddc-i2c-bus = <&i2c7>;
+
+ port {
+ vga_connector_in: endpoint {
+ remote-endpoint = <&adv7123_out>;
+ };
+ };
+ };
+};
+
+&package0 {
+ htvec: interrupt-controller@efdfb000080 {
+ compatible = "loongson,htvec-1.0";
+ reg = <0xefd 0xfb000080 0x40>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&liointc>;
+ interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+ <25 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <28 IRQ_TYPE_LEVEL_HIGH>,
+ <29 IRQ_TYPE_LEVEL_HIGH>,
+ <30 IRQ_TYPE_LEVEL_HIGH>,
+ <31 IRQ_TYPE_LEVEL_HIGH>;
+ };
+};
+
+&pch {
+ msi: msi-controller@2ff00000 {
+ compatible = "loongson,pch-msi-1.0";
+ reg = <0 0x2ff00000 0 0x8>;
+ interrupt-controller;
+ msi-controller;
+ loongson,msi-base-vec = <64>;
+ loongson,msi-num-vecs = <192>;
+ interrupt-parent = <&htvec>;
+ };
+};
+
+&lsdc {
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ status = "disabled";
+ };
+
+ port@1 {
+ reg = <1>;
+ status = "ok";
+ dc_out_rgb1: endpoint {
+ remote-endpoint = <&adv7123_in>;
+ };
+ };
+ };
+};
diff --git a/arch/mips/boot/dts/loongson/ls2k1000_pai_udb.dts b/arch/mips/boot/dts/loongson/ls2k1000_pai_udb.dts
new file mode 100644
index 000000000000..972987975ada
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/ls2k1000_pai_udb.dts
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64-2k1000.dtsi"
+
+/ {
+ model = "LS2K1000_PAI_UDB_V1.5";
+
+ panel: display@0 {
+ compatible = "panel-dpi";
+ label = "LCD070CG1024600+DC21";
+
+ rotation = <0>;
+ width-mm = <86>;
+ height-mm = <154>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel_in: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&dc_out_rgb0>;
+ };
+ };
+
+ panel-timing {
+ 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>;
+
+ hsync-active = <0>;
+ vsync-active = <0>;
+ de-active = <1>;
+ pixelclk-active = <1>;
+ };
+ };
+
+ monitor: display@1 {
+ compatible = "panel-dpi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ monitor_in: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&dc_out_rgb1>;
+ };
+ };
+
+ panel-timing {
+ clock-frequency = <65000000>;
+ hactive = <1024>;
+ vactive = <768>;
+ hfront-porch = <24>;
+ hsync-len = <136>;
+ hback-porch = <160>;
+ vfront-porch = <3>;
+ vback-porch = <6>;
+ vsync-len = <29>;
+
+ hsync-active = <0>;
+ vsync-active = <0>;
+ de-active = <1>;
+ pixelclk-active = <1>;
+ };
+ };
+};
+
+&lsdc {
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dc_out_rgb0: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dc_out_rgb1: endpoint {
+ remote-endpoint = <&monitor_in>;
+ };
+ };
+ };
+};
diff --git a/arch/mips/boot/dts/loongson/ls3a4000_7a1000_evb.dts b/arch/mips/boot/dts/loongson/ls3a4000_7a1000_evb.dts
new file mode 100644
index 000000000000..e342eb9ea12e
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/ls3a4000_7a1000_evb.dts
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64g-package.dtsi"
+#include "ls7a-pch.dtsi"
+
+/ {
+ compatible = "loongson,loongson64g-4core-ls7a";
+ model = "LS3A4000_7A1000_EVB_BOARD_V1.4";
+
+ vga-encoder {
+ compatible = "adi,adv7123", "dumb-vga-dac";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ adv7123_in: endpoint {
+ remote-endpoint = <&dc_out_rgb0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ adv7123_out: endpoint {
+ remote-endpoint = <&vga_connector_in>;
+ };
+ };
+ };
+ };
+
+ vga-connector {
+ compatible = "vga-connector";
+ label = "vga";
+
+ ddc-i2c-bus = <&i2c6>;
+
+ port {
+ vga_connector_in: endpoint {
+ remote-endpoint = <&adv7123_out>;
+ };
+ };
+ };
+
+ tfp410: dvi-encoder {
+ compatible = "ti,tfp410";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ tfp410_in: endpoint {
+ pclk-sample = <1>;
+ bus-width = <24>;
+ remote-endpoint = <&dc_out_rgb1>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ tfp410_out: endpoint {
+ remote-endpoint = <&dvi_connector_in>;
+ };
+ };
+ };
+ };
+
+ dvi-connector {
+ compatible = "dvi-connector";
+ label = "dvi";
+ digital;
+
+ ddc-i2c-bus = <&i2c7>;
+
+ port {
+ dvi_connector_in: endpoint {
+ remote-endpoint = <&tfp410_out>;
+ };
+ };
+ };
+};
+
+&package0 {
+ htvec: interrupt-controller@efdfb000080 {
+ compatible = "loongson,htvec-1.0";
+ reg = <0xefd 0xfb000080 0x40>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&liointc>;
+ interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+ <25 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <28 IRQ_TYPE_LEVEL_HIGH>,
+ <29 IRQ_TYPE_LEVEL_HIGH>,
+ <30 IRQ_TYPE_LEVEL_HIGH>,
+ <31 IRQ_TYPE_LEVEL_HIGH>;
+ };
+};
+
+&pch {
+ msi: msi-controller@2ff00000 {
+ compatible = "loongson,pch-msi-1.0";
+ reg = <0 0x2ff00000 0 0x8>;
+ interrupt-controller;
+ msi-controller;
+ loongson,msi-base-vec = <64>;
+ loongson,msi-num-vecs = <192>;
+ interrupt-parent = <&htvec>;
+ };
+};
+
+&lsdc {
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dc_out_rgb0: endpoint {
+ remote-endpoint = <&adv7123_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dc_out_rgb1: endpoint {
+ remote-endpoint = <&tfp410_in>;
+ };
+ };
+ };
+};
--
2.25.1

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