From: Tim Harvey <tharvey@gateworks.com>
To: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Cc: NXP Linux Team <linux-imx@nxp.com>,
Fabio Estevam <festevam@gmail.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Sascha Hauer <s.hauer@pengutronix.de>,
Shawn Guo <shawnguo@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Tim Harvey <tharvey@gateworks.com>
Subject: [PATCH] arm64: dts: imx8mp-venice-gw74xx: add PCIe support
Date: Thu, 8 Sep 2022 08:49:03 -0700 [thread overview]
Message-ID: <20220908154903.4100386-1-tharvey@gateworks.com> (raw)
Add PCIe support on the Gateworks GW74xx board. While at it,
fix the related gpio line names from the previous incorrect values.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
.../dts/freescale/imx8mp-venice-gw74xx.dts | 40 +++++++++++++++++--
1 file changed, 37 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
index e0fe356b662d..7644db61d631 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
@@ -8,6 +8,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/linux-event-codes.h>
#include <dt-bindings/leds/common.h>
+#include <dt-bindings/phy/phy-imx8-pcie.h>
#include "imx8mp.dtsi"
@@ -100,6 +101,12 @@ led-1 {
};
};
+ pcie0_refclk: pcie0-refclk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <100000000>;
+ };
+
pps {
compatible = "pps-gpio";
pinctrl-names = "default";
@@ -215,8 +222,8 @@ &gpio1 {
&gpio2 {
gpio-line-names =
"", "", "", "", "", "", "", "",
- "", "", "", "", "", "", "", "",
- "pcie3_wdis#", "", "", "pcie1_wdis@", "pcie2_wdis#", "", "", "",
+ "", "", "", "", "", "", "pcie3_wdis#", "",
+ "", "", "pcie2_wdis#", "", "", "", "", "",
"", "", "", "", "", "", "", "";
};
@@ -562,6 +569,28 @@ &i2c4 {
status = "okay";
};
+&pcie_phy {
+ fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
+ fsl,clkreq-unsupported;
+ clocks = <&pcie0_refclk>;
+ clock-names = "ref";
+ status = "okay";
+};
+
+&pcie {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcie0>;
+ reset-gpio = <&gpio2 17 GPIO_ACTIVE_LOW>;
+ clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,
+ <&clk IMX8MP_CLK_PCIE_ROOT>,
+ <&clk IMX8MP_CLK_HSIO_AXI>;
+ clock-names = "pcie", "pcie_aux", "pcie_bus";
+ assigned-clocks = <&clk IMX8MP_CLK_PCIE_AUX>;
+ assigned-clock-rates = <10000000>;
+ assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_50M>;
+ status = "okay";
+};
+
/* GPS / off-board header */
&uart1 {
pinctrl-names = "default";
@@ -694,7 +723,6 @@ pinctrl_hog: hoggrp {
MX8MP_IOMUXC_GPIO1_IO09__GPIO1_IO09 0x40000040 /* DIO0 */
MX8MP_IOMUXC_GPIO1_IO11__GPIO1_IO11 0x40000040 /* DIO1 */
MX8MP_IOMUXC_NAND_DQS__GPIO3_IO14 0x40000040 /* M2SKT_OFF# */
- MX8MP_IOMUXC_SD2_DATA2__GPIO2_IO17 0x40000150 /* PCIE1_WDIS# */
MX8MP_IOMUXC_SD2_DATA3__GPIO2_IO18 0x40000150 /* PCIE2_WDIS# */
MX8MP_IOMUXC_SD2_CMD__GPIO2_IO14 0x40000150 /* PCIE3_WDIS# */
MX8MP_IOMUXC_NAND_DATA00__GPIO3_IO06 0x40000040 /* M2SKT_RST# */
@@ -807,6 +835,12 @@ MX8MP_IOMUXC_SD2_DATA1__GPIO2_IO16 0x10
>;
};
+ pinctrl_pcie0: pciegrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SD2_DATA2__GPIO2_IO17 0x110
+ >;
+ };
+
pinctrl_pmic: pmicgrp {
fsl,pins = <
MX8MP_IOMUXC_NAND_DATA01__GPIO3_IO07 0x140
--
2.25.1
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next reply other threads:[~2022-09-08 15:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-08 15:49 Tim Harvey [this message]
2022-09-09 5:59 ` [PATCH] arm64: dts: imx8mp-venice-gw74xx: add PCIe support Alexander Stein
2022-09-09 17:42 ` Tim Harvey
2022-09-14 17:09 ` Tim Harvey
2022-09-16 10:03 ` Shawn Guo
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