[PATCH 1/5] arm64: dts: rockchip: enable PCIe on M.2 E key for Radxa ROCK 5A

[Kever Yang]

On 2024/12/10 11:36, FUKAUMI Naoki wrote:
> Enable pcie2x1l2 and related combphy/regulator routed to M.2 E key
> connector on Radxa ROCK 5A.
>
> Tested with Radxa Wireless Module A8:
>
> $ lspci
> 0004:40:00.0 PCI bridge: Rockchip Electronics Co., Ltd RK3588 (rev 01)
> 0004:41:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8852BE PCIe 802.11ax Wireless Network Controller
>
> $ ip l
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
>      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> 2: end0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
>      link/ether c2:58:fc:70:55:86 brd ff:ff:ff:ff:ff:ff
> 3: wlP4p65s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
>      link/ether 2c:05:47:65:5b:ed brd ff:ff:ff:ff:ff:ff
>
> $ lsusb
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
> Bus 001 Device 003: ID 0bda:b85b Realtek Semiconductor Corp. Bluetooth Radio
> Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> Bus 006 Device 002: ID 0789:0336 Logitec Corp. LMD USB Device
> Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>
> $ hciconfig
> hci0:	Type: Primary  Bus: USB
> 	BD Address: 2C:05:47:65:5B:EE  ACL MTU: 1021:6  SCO MTU: 255:12
> 	UP RUNNING
> 	RX bytes:2698 acl:0 sco:0 events:329 errors:0
> 	TX bytes:69393 acl:0 sco:0 commands:329 errors:0
>
> Signed-off-by: FUKAUMI Naoki <naoki at radxa.com>
> Link: https://lore.kernel.org/r/20240826080456.525-1-naoki@radxa.com
> Signed-off-by: Heiko Stuebner <heiko at sntech.de>
> (cherry picked from commit b728d4c51f0ce9207daf502f3a85073785c46319)
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>

Thanks,
- Kever
> ---
>   .../src/arm64/rockchip/rk3588s-rock-5a.dts    | 30 +++++++++++++++++++
>   1 file changed, 30 insertions(+)
>
> diff --git a/dts/upstream/src/arm64/rockchip/rk3588s-rock-5a.dts b/dts/upstream/src/arm64/rockchip/rk3588s-rock-5a.dts
> index 03ed48246d36..a385e0991990 100644
> --- a/dts/upstream/src/arm64/rockchip/rk3588s-rock-5a.dts
> +++ b/dts/upstream/src/arm64/rockchip/rk3588s-rock-5a.dts
> @@ -65,6 +65,18 @@
>   		regulator-max-microvolt = <12000000>;
>   	};
>   
> +	vcc3v3_wf: vcc3v3-wf-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc3v3_wf";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		enable-active-high;
> +		gpio = <&gpio0 RK_PC5 GPIO_ACTIVE_HIGH>;
> +		pinctrl-0 = <&pow_en>;
> +		pinctrl-names = "default";
> +		vin-supply = <&vcc5v0_sys>;
> +	};
> +
>   	vcc5v0_host: vcc5v0-host-regulator {
>   		compatible = "regulator-fixed";
>   		regulator-name = "vcc5v0_host";
> @@ -114,6 +126,10 @@
>   	};
>   };
>   
> +&combphy0_ps {
> +	status = "okay";
> +};
> +
>   &combphy2_psu {
>   	status = "okay";
>   };
> @@ -293,6 +309,14 @@
>   	};
>   };
>   
> +&pcie2x1l2 {
> +	pinctrl-0 = <&pcie20x1m0_pins>;
> +	pinctrl-names = "default";
> +	reset-gpios = <&gpio3 RK_PD1 GPIO_ACTIVE_HIGH>;
> +	vpcie3v3-supply = <&vcc3v3_wf>;
> +	status = "okay";
> +};
> +
>   &pinctrl {
>   	leds {
>   		io_led: io-led {
> @@ -300,6 +324,12 @@
>   		};
>   	};
>   
> +	pcie {
> +		pow_en: pow-en {
> +			rockchip,pins = <0 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
>   	power {
>   		vcc_5v0_en: vcc-5v0-en {
>   			rockchip,pins = <4 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;