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Message-ID: <20220426153553.18474-2-r-ravikumar@ti.com>
Date: Tue, 26 Apr 2022 21:05:52 +0530
From: Rahul T R <r-ravikumar@...com>
To: <nm@...com>
CC: <vigneshr@...com>, <kristo@...nel.org>, <robh+dt@...nel.org>,
<krzysztof.kozlowski@...onical.com>,
<linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<tomi.valkeinen@...asonboard.com>,
<laurent.pinchart@...asonboard.com>, <kishon@...com>,
<r-ravikumar@...com>
Subject: [PATCH v4 1/2] arm64: dts: ti: k3-j721e-*: add DP & DP PHY
From: Tomi Valkeinen <tomi.valkeinen@...com>
Add DT nodes for DisplayPort and DisplayPort PHY. The DP is Cadence MHDP
8546 and the PHY is a Cadence Torrent PHY with TI WIZ wrapper.
Also add the required phy link nodes in the board dts files.
A slight irregularity in the bindings is the DPTX PHY register block,
which is in the MHDP IP, but is needed and mapped by the PHY.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...com>
Signed-off-by: Rahul T R <r-ravikumar@...com>
---
.../dts/ti/k3-j721e-common-proc-board.dts | 16 ++++
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 75 ++++++++++++++++++-
arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 16 ++++
3 files changed, 105 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index f5ca8e26ed99..2f119e94e783 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -793,6 +793,22 @@
};
};
+&serdes4 {
+ torrent_phy_dp: phy@0 {
+ reg = <0>;
+ resets = <&serdes_wiz4 1>;
+ cdns,phy-type = <PHY_TYPE_DP>;
+ cdns,num-lanes = <4>;
+ cdns,max-bit-rate = <5400>;
+ #phy-cells = <0>;
+ };
+};
+
+&mhdp {
+ phys = <&torrent_phy_dp>;
+ phy-names = "dpphy";
+};
+
&pcie0_rc {
reset-gpios = <&exp1 6 GPIO_ACTIVE_HIGH>;
phys = <&serdes0_pcie_link>;
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index db0669985e42..43b6cf5791ee 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -5,6 +5,7 @@
* Copyright (C) 2016-2020 Texas Instruments Incorporated - https://www.ti.com/
*/
#include <dt-bindings/phy/phy.h>
+#include <dt-bindings/phy/phy-ti.h>
#include <dt-bindings/mux/mux.h>
#include <dt-bindings/mux/ti-serdes.h>
@@ -789,6 +790,47 @@
#size-cells = <2>;
};
+ serdes_wiz4: wiz@...0000 {
+ compatible = "ti,am64-wiz-10g";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ power-domains = <&k3_pds 297 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 297 1>, <&k3_clks 297 9>, <&cmn_refclk>;
+ clock-names = "fck", "core_ref_clk", "ext_ref_clk";
+ assigned-clocks = <&k3_clks 297 9>;
+ assigned-clock-parents = <&k3_clks 297 10>;
+ assigned-clock-rates = <19200000>;
+ num-lanes = <4>;
+ #reset-cells = <1>;
+ #clock-cells = <1>;
+ ranges = <0x05050000 0x00 0x05050000 0x010000>,
+ <0x0a030a00 0x00 0x0a030a00 0x40>;
+
+ serdes4: serdes@...0000 {
+ /*
+ * Note: we also map DPTX PHY registers as the Torrent
+ * needs to manage those.
+ */
+ compatible = "ti,j721e-serdes-10g";
+ reg = <0x05050000 0x010000>,
+ <0x0a030a00 0x40>; /* DPTX PHY */
+ reg-names = "torrent_phy", "dptx_phy";
+
+ resets = <&serdes_wiz4 0>;
+ reset-names = "torrent_reset";
+ clocks = <&serdes_wiz4 TI_WIZ_PLL0_REFCLK>;
+ clock-names = "refclk";
+ assigned-clocks = <&serdes_wiz4 TI_WIZ_PLL0_REFCLK>,
+ <&serdes_wiz4 TI_WIZ_PLL1_REFCLK>,
+ <&serdes_wiz4 TI_WIZ_REFCLK_DIG>;
+ assigned-clock-parents = <&k3_clks 297 9>,
+ <&k3_clks 297 9>,
+ <&k3_clks 297 9>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
main_uart0: serial@...0000 {
compatible = "ti,j721e-uart", "ti,am654-uart";
reg = <0x00 0x02800000 0x00 0x100>;
@@ -1267,6 +1309,37 @@
};
};
+ mhdp: dp-bridge@...0000 {
+ compatible = "ti,j721e-mhdp8546";
+ /*
+ * Note: we do not map DPTX PHY area, as that is handled by
+ * the PHY driver.
+ */
+ reg = <0x00 0x0a000000 0x00 0x030a00>, /* DSS_EDP0_V2A_CORE_VP_REGS_APB */
+ <0x00 0x04f40000 0x00 0x20>; /* DSS_EDP0_INTG_CFG_VP */
+ reg-names = "mhdptx", "j721e-intg";
+
+ clocks = <&k3_clks 151 36>;
+
+ interrupt-parent = <&gic500>;
+ interrupts = <GIC_SPI 614 IRQ_TYPE_LEVEL_HIGH>;
+
+ power-domains = <&k3_pds 151 TI_SCI_PD_EXCLUSIVE>;
+
+ dp0_ports: ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ };
+
+ port@4 {
+ reg = <4>;
+ };
+ };
+ };
+
dss: dss@...0000 {
compatible = "ti,j721e-dss";
reg =
@@ -1317,8 +1390,6 @@
"common_s2";
dss_ports: ports {
- #address-cells = <1>;
- #size-cells = <0>;
};
};
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index f25d85169e0d..98177a20b45f 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -624,6 +624,22 @@
};
};
+&serdes4 {
+ torrent_phy_dp: phy@0 {
+ reg = <0>;
+ resets = <&serdes_wiz4 1>;
+ cdns,phy-type = <PHY_TYPE_DP>;
+ cdns,num-lanes = <4>;
+ cdns,max-bit-rate = <5400>;
+ #phy-cells = <0>;
+ };
+};
+
+&mhdp {
+ phys = <&torrent_phy_dp>;
+ phy-names = "dpphy";
+};
+
&usbss0 {
pinctrl-names = "default";
pinctrl-0 = <&main_usbss0_pins_default>;
--
2.17.1
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