[PATCH 0/8] arm: dts: dra7: Add PCIe data and PCIe PHY data

[PATCH 0/8] arm: dts: dra7: Add PCIe data and PCIe PHY data

[Kishon Vijay Abraham I]

[1] is split into separate series in order for individual subsystem
Maintainers to pick up the patches. This series handles the PCIe
dt data for DRA7.

This series has better commit logs than the previous one modified as
suggested by Tero.

[1] -> https://lkml.org/lkml/2014/5/29/258

Keerthy (2):
  ARM: dts: dra7xx-clocks: Add divider table to optfclk_pciephy_div
    clock
  ARM: dts: dra7xx-clocks: Change the parent of apll_pcie_in_clk_mux to
    dpll_pcie_ref_m2ldo_ck

Kishon Vijay Abraham I (6):
  ARM: dts: dra7xx-clocks: Add missing 32KHz clocks used for PHY
  ARM: dts: dra7xx-clocks: rename pcie clocks to accommodate second PHY
    instance
  ARM: dts: dra7xx-clocks: Add missing clocks for second PCIe PHY
    instance
  ARM: dts: dra7: Add dt data for PCIe PHY control module
  ARM: dts: dra7: Add dt data for PCIe PHY
  ARM: dts: dra7: Add dt data for PCIe controller

 arch/arm/boot/dts/dra7.dtsi          |  127 ++++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/dra7xx-clocks.dtsi |   39 ++++++++++-
 2 files changed, 163 insertions(+), 3 deletions(-)

-- 
1.7.9.5

[PATCH 1/8] ARM: dts: dra7xx-clocks: Add divider table to optfclk_pciephy_div clock

[Kishon Vijay Abraham I]

From: Keerthy <j-keerthy@ti.com>

Add divider table to optfclk_pciephy_div clock. The 8th bit of
CM_CLKMODE_APLL_PCIE can be programmed to either 0x0 or 0x1
based on if the divider value is 0x2 or 0x1.

Figure 26-21. PCIe PHY Clock Generator Overview in vE of DRA7xx ES1.0 shows the
block diagram of Clock Generator Subsystem of PCIe PHY module. The divider
value if '1' should be programmed in order to get the correct
PCIE_PHY_DIV_GCLK frequency (2.5GHz).

Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/dra7xx-clocks.dtsi |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index b03cfe4..7148e7c 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -1170,6 +1170,7 @@
 		clocks = <&apll_pcie_ck>;
 		#clock-cells = <0>;
 		reg = <0x021c>;
+		ti,dividers = <2>, <1>;
 		ti,bit-shift = <8>;
 		ti,max-div = <2>;
 	};
-- 
1.7.9.5

[PATCH 2/8] ARM: dts: dra7xx-clocks: Change the parent of apll_pcie_in_clk_mux to dpll_pcie_ref_m2ldo_ck

[Kishon Vijay Abraham I]

From: Keerthy <j-keerthy@ti.com>

Change the parent of apll_pcie_in_clk_mux to dpll_pcie_ref_m2ldo_ck
from dpll_pcie_ref_ck.

Figure 26-22. DPLL_PCIE_REF Functional Block Diagram in vE of DRA7xx ES1.0 TRM
shows the signal name for the output of post divider (M2) is CLKOUTLDO.

Figure 26-21. PCIe PHY Clock Generator Overview shows CLKOUTLDO is used as
input to apll mux.

So the actual output of dpll is dpll_pcie_ref_m2ldo_ck which is also the input
of apll.

Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/dra7xx-clocks.dtsi |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index 7148e7c..f5dca1f 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -1152,7 +1152,7 @@
 
 	apll_pcie_in_clk_mux: apll_pcie_in_clk_mux@4ae06118 {
 		compatible = "ti,mux-clock";
-		clocks = <&dpll_pcie_ref_ck>, <&pciesref_acs_clk_ck>;
+		clocks = <&dpll_pcie_ref_m2ldo_ck>, <&pciesref_acs_clk_ck>;
 		#clock-cells = <0>;
 		reg = <0x021c 0x4>;
 		ti,bit-shift = <7>;
-- 
1.7.9.5

[PATCH 3/8] ARM: dts: dra7xx-clocks: Add missing 32KHz clocks used for PHY

[Kishon Vijay Abraham I]

Added missing 32KHz clock used by PCIe PHY.
Figure 26-19. PCIe PHY Subsystem Integration in vE of DRA7xx ES1.0 TRM shows
32KHz is used by PCIe PHY.

Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/dra7xx-clocks.dtsi |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index f5dca1f..3ff6d7c 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -1165,6 +1165,14 @@
 		reg = <0x021c>, <0x0220>;
 	};
 
+	optfclk_pciephy_32khz: optfclk_pciephy_32khz@4a0093b0 {
+		compatible = "ti,gate-clock";
+		clocks = <&sys_32k_ck>;
+		#clock-cells = <0>;
+		reg = <0x13b0>;
+		ti,bit-shift = <8>;
+	};
+
 	optfclk_pciephy_div: optfclk_pciephy_div@4a00821c {
 		compatible = "ti,divider-clock";
 		clocks = <&apll_pcie_ck>;
-- 
1.7.9.5

[PATCH 4/8] ARM: dts: dra7xx-clocks: rename pcie clocks to accommodate second PHY instance

[Kishon Vijay Abraham I]

There are two instances of PCIe PHY in DRA7xx. So renamed
optfclk_pciephy_32khz, optfclk_pciephy_clk and optfclk_pciephy_div_clk to
optfclk_pciephy1_32khz, optfclk_pciephy1_clk and optfclk_pciephy1_div_clk
respectively. This is needed for adding the clocks for second PCIe PHY
instance.

Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/dra7xx-clocks.dtsi |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index 3ff6d7c..fe5db55 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -1165,7 +1165,7 @@
 		reg = <0x021c>, <0x0220>;
 	};
 
-	optfclk_pciephy_32khz: optfclk_pciephy_32khz@4a0093b0 {
+	optfclk_pciephy1_32khz: optfclk_pciephy1_32khz@4a0093b0 {
 		compatible = "ti,gate-clock";
 		clocks = <&sys_32k_ck>;
 		#clock-cells = <0>;
@@ -1183,7 +1183,7 @@
 		ti,max-div = <2>;
 	};
 
-	optfclk_pciephy_clk: optfclk_pciephy_clk@4a0093b0 {
+	optfclk_pciephy1_clk: optfclk_pciephy1_clk@4a0093b0 {
 		compatible = "ti,gate-clock";
 		clocks = <&apll_pcie_ck>;
 		#clock-cells = <0>;
@@ -1191,7 +1191,7 @@
 		ti,bit-shift = <9>;
 	};
 
-	optfclk_pciephy_div_clk: optfclk_pciephy_div_clk@4a0093b0 {
+	optfclk_pciephy1_div_clk: optfclk_pciephy1_div_clk@4a0093b0 {
 		compatible = "ti,gate-clock";
 		clocks = <&optfclk_pciephy_div>;
 		#clock-cells = <0>;
-- 
1.7.9.5

[PATCH 5/8] ARM: dts: dra7xx-clocks: Add missing clocks for second PCIe PHY instance

[Kishon Vijay Abraham I]

Added missing clocks used by second instance of PCIe PHY.
The documention for this nodes can be found @ ../bindings/clock/ti/gate.txt.

Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/dra7xx-clocks.dtsi |   24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index fe5db55..b48f18b 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -1173,6 +1173,14 @@
 		ti,bit-shift = <8>;
 	};
 
+	optfclk_pciephy2_32khz: optfclk_pciephy2_32khz@4a0093b8 {
+		compatible = "ti,gate-clock";
+		clocks = <&sys_32k_ck>;
+		#clock-cells = <0>;
+		reg = <0x13b8>;
+		ti,bit-shift = <8>;
+	};
+
 	optfclk_pciephy_div: optfclk_pciephy_div@4a00821c {
 		compatible = "ti,divider-clock";
 		clocks = <&apll_pcie_ck>;
@@ -1191,6 +1199,14 @@
 		ti,bit-shift = <9>;
 	};
 
+	optfclk_pciephy2_clk: optfclk_pciephy2_clk@4a0093b8 {
+		compatible = "ti,gate-clock";
+		clocks = <&apll_pcie_ck>;
+		#clock-cells = <0>;
+		reg = <0x13b8>;
+		ti,bit-shift = <9>;
+	};
+
 	optfclk_pciephy1_div_clk: optfclk_pciephy1_div_clk@4a0093b0 {
 		compatible = "ti,gate-clock";
 		clocks = <&optfclk_pciephy_div>;
@@ -1199,6 +1215,14 @@
 		ti,bit-shift = <10>;
 	};
 
+	optfclk_pciephy2_div_clk: optfclk_pciephy2_div_clk@4a0093b8 {
+		compatible = "ti,gate-clock";
+		clocks = <&optfclk_pciephy_div>;
+		#clock-cells = <0>;
+		reg = <0x13b8>;
+		ti,bit-shift = <10>;
+	};
+
 	apll_pcie_clkvcoldo: apll_pcie_clkvcoldo {
 		#clock-cells = <0>;
 		compatible = "fixed-factor-clock";
-- 
1.7.9.5

[PATCH 6/8] ARM: dts: dra7: Add dt data for PCIe PHY control module

[Kishon Vijay Abraham I]

Added dt data for PCIe PHY control module used by PCIe PHY.
The documention for this node can be found @ ../bindings/phy/ti-phy.txt

Cc: Tony Lindgren <tony@atomide.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/dra7.dtsi |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 34464cd..f029a90 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -827,6 +827,23 @@
 			ti,hwmods = "sata";
 		};
 
+		omap_control_pcie1phy: control-phy@0x4a003c40 {
+			compatible = "ti,control-phy-pcie";
+			reg = <0x4a003c40 0x4>, <0x4a003c14 0x4>, <0x4a003c34 0x4>;
+			reg-names = "power", "control_sma", "pcie_pcs";
+			clocks = <&sys_clkin1>;
+			clock-names = "sysclk";
+		};
+
+		omap_control_pcie2phy: control-pcie@0x4a003c44 {
+			compatible = "ti,control-phy-pcie";
+			reg = <0x4a003c44 0x4>, <0x4a003c14 0x4>, <0x4a003c34 0x4>;
+			reg-names = "power", "control_sma", "pcie_pcs";
+			clocks = <&sys_clkin1>;
+			clock-names = "sysclk";
+			status = "disabled";
+		};
+
 		omap_control_usb2phy1: control-phy@4a002300 {
 			compatible = "ti,control-phy-usb2";
 			reg = <0x4a002300 0x4>;
-- 
1.7.9.5

[PATCH 7/8] ARM: dts: dra7: Add dt data for PCIe PHY

[Kishon Vijay Abraham I]

Added dt data for PCIe PHY as a child node of ocp2scp3.
The documention for this node can be found @ ../bindings/phy/ti-phy.txt.
26.3.3 PCIe Shared PHY Subsystem Integration in vE of DRA7xx ES1.0
describes the PCIe PHY subsystem-related components integrated in the device.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/dra7.dtsi |   41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index f029a90..d196404 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -815,6 +815,47 @@
 				clock-names = "sysclk";
 				#phy-cells = <0>;
 			};
+
+			pcie1_phy: pciephy@4a094000 {
+				compatible = "ti,phy-pipe3-pcie";
+				reg = <0x4a094000 0x80>, /* phy_rx */
+				      <0x4a094400 0x64>; /* phy_tx */
+				reg-names = "phy_rx", "phy_tx";
+				ctrl-module = <&omap_control_pcie1phy>;
+				clocks = <&dpll_pcie_ref_ck>,
+					 <&dpll_pcie_ref_m2ldo_ck>,
+					 <&optfclk_pciephy1_32khz>,
+					 <&optfclk_pciephy1_clk>,
+					 <&optfclk_pciephy1_div_clk>,
+					 <&optfclk_pciephy_div>;
+				clock-names = "dpll_ref", "dpll_ref_m2",
+					      "wkupclk", "refclk",
+					      "div-clk", "phy-div";
+				#phy-cells = <0>;
+				id = <1>;
+				ti,hwmods = "pcie1-phy";
+			};
+
+			pcie2_phy: pciephy@4a095000 {
+				compatible = "ti,phy-pipe3-pcie";
+				reg = <0x4a095000 0x80>, /* phy_rx */
+				      <0x4a095400 0x64>; /* phy_tx */
+				reg-names = "phy_rx", "phy_tx";
+				ctrl-module = <&omap_control_pcie2phy>;
+				clocks = <&dpll_pcie_ref_ck>,
+					 <&dpll_pcie_ref_m2ldo_ck>,
+					 <&optfclk_pciephy2_32khz>,
+					 <&optfclk_pciephy2_clk>,
+					 <&optfclk_pciephy2_div_clk>,
+					 <&optfclk_pciephy_div>;
+				clock-names = "dpll_ref", "dpll_ref_m2",
+					      "wkupclk", "refclk",
+					      "div-clk", "phy-div";
+				#phy-cells = <0>;
+				ti,hwmods = "pcie2-phy";
+				id = <2>;
+				status = "disabled";
+			};
 		};
 
 		sata: sata@4a141100 {
-- 
1.7.9.5

[PATCH 8/8] ARM: dts: dra7: Add dt data for PCIe controller

[Kishon Vijay Abraham I]

Added dt data for PCIe controller. This node contains dt data for
both the DRA7 part of designware controller and for the designware core.
The documention for this node can be found @ ../bindings/pci/ti-pci.txt.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/dra7.dtsi |   69 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index d196404..117288d 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -98,6 +98,75 @@
 			};
 		};
 
+		axi@0 {
+			compatible = "simple-bus";
+			#size-cells = <1>;
+			#address-cells = <1>;
+			ranges = <0x51000000 0x51000000 0x3000
+				  0x0	     0x20000000 0x10000000>;
+			pcie@51000000 {
+				compatible = "ti,dra7-pcie";
+				reg = <0x51000000 0x2000>, <0x51002000 0x14c>, <0x1000 0x2000>;
+				reg-names = "rc_dbics", "ti_conf", "config";
+				interrupts = <0 232 0x4>, <0 233 0x4>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				ranges = <0x81000000 0 0          0x03000 0 0x00010000
+					  0x82000000 0 0x20013000 0x13000 0 0xffed000>;
+				#interrupt-cells = <1>;
+				num-lanes = <1>;
+				ti,hwmods = "pcie1";
+				phys = <&pcie1_phy>;
+				phy-names = "pcie-phy0";
+				interrupt-map-mask = <0 0 0 7>;
+				interrupt-map = <0 0 0 1 &pcie1_intc 1>,
+						<0 0 0 2 &pcie1_intc 2>,
+						<0 0 0 3 &pcie1_intc 3>,
+						<0 0 0 4 &pcie1_intc 4>;
+				pcie1_intc: interrupt-controller {
+					interrupt-controller;
+					#address-cells = <0>;
+					#interrupt-cells = <1>;
+				};
+			};
+		};
+
+		axi@1 {
+			compatible = "simple-bus";
+			#size-cells = <1>;
+			#address-cells = <1>;
+			ranges = <0x51800000 0x51800000 0x3000
+				  0x0	     0x30000000 0x10000000>;
+			status = "disabled";
+			pcie@51000000 {
+				compatible = "ti,dra7-pcie";
+				reg = <0x51800000 0x2000>, <0x51802000 0x14c>, <0x1000 0x2000>;
+				reg-names = "rc_dbics", "ti_conf", "config";
+				interrupts = <0 355 0x4>, <0 356 0x4>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				ranges = <0x81000000 0 0          0x03000 0 0x00010000
+					  0x82000000 0 0x30013000 0x13000 0 0xffed000>;
+				#interrupt-cells = <1>;
+				num-lanes = <1>;
+				ti,hwmods = "pcie2";
+				phys = <&pcie2_phy>;
+				phy-names = "pcie-phy0";
+				interrupt-map-mask = <0 0 0 7>;
+				interrupt-map = <0 0 0 1 &pcie2_intc 1>,
+						<0 0 0 2 &pcie2_intc 2>,
+						<0 0 0 3 &pcie2_intc 3>,
+						<0 0 0 4 &pcie2_intc 4>;
+				pcie2_intc: interrupt-controller {
+					interrupt-controller;
+					#address-cells = <0>;
+					#interrupt-cells = <1>;
+				};
+			};
+		};
+
 		cm_core_aon: cm_core_aon@4a005000 {
 			compatible = "ti,dra7-cm-core-aon";
 			reg = <0x4a005000 0x2000>;
-- 
1.7.9.5