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Message-ID: <2644866a-8db2-923e-4227-2aa6d8e375fe@flygoat.com>
Date: Tue, 22 Mar 2022 13:05:29 +0000
From: Jiaxun Yang <jiaxun.yang@...goat.com>
To: Sui Jingfeng <15330273260@....cn>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
Roland Scheidegger <sroland@...are.com>,
Zack Rusin <zackr@...are.com>,
Christian Gmeiner <christian.gmeiner@...il.com>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Dan Carpenter <dan.carpenter@...cle.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Andrey Zhizhikin <andrey.zhizhikin@...ca-geosystems.com>,
Sam Ravnborg <sam@...nborg.org>,
"David S . Miller" <davem@...emloft.net>,
Lucas Stach <l.stach@...gutronix.de>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Ilia Mirkin <imirkin@...m.mit.edu>,
Qing Zhang <zhangqing@...ngson.cn>,
suijingfeng <suijingfeng@...ngson.cn>
Cc: linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v11 2/7] MIPS: Loongson64: dts: introduce ls3A4000
evaluation board
在 2022/3/21 16:29, Sui Jingfeng 写道:
> From: suijingfeng <suijingfeng@...ngson.cn>
>
> 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 PCIe GEN2 x8 slot,
> therefore can play with discrete graphics card.
Hi Jingfeng,
As we've discussed before if you are going to introduce new dts then you
*MUST*
include it in makefile and wire it up in code.
A dts file doing nothing lying in the tree is just suspicious.
Thanks.
- Jiaxun
>
> 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
> +-------+ +------+
>
> Signed-off-by: suijingfeng <suijingfeng@...ngson.cn>
> Signed-off-by: Sui Jingfeng <15330273260@....cn>
> ---
> .../boot/dts/loongson/ls3a4000_7a1000_evb.dts | 136 ++++++++++++++++++
> 1 file changed, 136 insertions(+)
> create mode 100644 arch/mips/boot/dts/loongson/ls3a4000_7a1000_evb.dts
>
> 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..f467eddccdac
> --- /dev/null
> +++ b/arch/mips/boot/dts/loongson/ls3a4000_7a1000_evb.dts
> @@ -0,0 +1,136 @@
> +// 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@...fb000080 {
> + 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@...00000 {
> + 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 {
> + endpoint {
> + remote-endpoint = <&adv7123_in>;
> + };
> + };
> +
> + port@1 {
> + endpoint {
> + remote-endpoint = <&tfp410_in>;
> + };
> + };
> + };
> +};
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