diff mbox series

[03/15] ARM: dts: Configure interconnect target module for dra7 pcie

Message ID 20210126124004.52550-4-tony@atomide.com
State Accepted
Commit 785d943c768ef631271d1ed5caef1c162e001d6b
Headers show
Series [01/15] PCI: pci-dra7xx: Prepare for deferred probe with module_platform_driver | expand

Commit Message

Tony Lindgren Jan. 26, 2021, 12:39 p.m. UTC
We can now probe devices with device tree only configuration using
ti-sysc interconnect target module driver. Let's configure the
module, but keep the legacy "ti,hwmods" peroperty to avoid new boot
time warnings. The legacy property will be removed in later patches
together with the legacy platform data.

Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/dra7.dtsi | 34 ++++++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -166,8 +166,21 @@  l4_per2: interconnect@48400000 {
 		l4_per3: interconnect@48800000 {
 		};
 
-		axi@0 {
-			compatible = "simple-bus";
+		/*
+		 * Register access seems to have complex dependencies and also
+		 * seems to need an enabled phy. See the TRM chapter for "Table
+		 * 26-678. Main Sequence PCIe Controller Global Initialization"
+		 * and also dra7xx_pcie_probe().
+		 */
+		axi0: target-module@51000000 {
+			compatible = "ti,sysc-omap4", "ti,sysc";
+			power-domains = <&prm_l3init>;
+			resets = <&prm_l3init 0>;
+			reset-names = "rstctrl";
+			clocks = <&pcie_clkctrl DRA7_PCIE_PCIE1_CLKCTRL 0>,
+				 <&pcie_clkctrl DRA7_PCIE_PCIE1_CLKCTRL 9>,
+				 <&pcie_clkctrl DRA7_PCIE_PCIE1_CLKCTRL 10>;
+			clock-names = "fck", "phy-clk", "phy-clk-div";
 			#size-cells = <1>;
 			#address-cells = <1>;
 			ranges = <0x51000000 0x51000000 0x3000>,
@@ -229,8 +242,21 @@  pcie1_ep: pcie_ep@51000000 {
 			};
 		};
 
-		axi@1 {
-			compatible = "simple-bus";
+		/*
+		 * Register access seems to have complex dependencies and also
+		 * seems to need an enabled phy. See the TRM chapter for "Table
+		 * 26-678. Main Sequence PCIe Controller Global Initialization"
+		 * and also dra7xx_pcie_probe().
+		 */
+		axi1: target-module@51800000 {
+			compatible = "ti,sysc-omap4", "ti,sysc";
+			clocks = <&pcie_clkctrl DRA7_PCIE_PCIE2_CLKCTRL 0>,
+				 <&pcie_clkctrl DRA7_PCIE_PCIE2_CLKCTRL 9>,
+				 <&pcie_clkctrl DRA7_PCIE_PCIE2_CLKCTRL 10>;
+			clock-names = "fck", "phy-clk", "phy-clk-div";
+			power-domains = <&prm_l3init>;
+			resets = <&prm_l3init 1>;
+			reset-names = "rstctrl";
 			#size-cells = <1>;
 			#address-cells = <1>;
 			ranges = <0x51800000 0x51800000 0x3000>,