diff mbox series

[v2,4/6] ARM: dts: aspeed: Add Facebook Cloudripper (AST2600) BMC

Message ID 20210805222818.8391-5-rentao.bupt@gmail.com (mailing list archive)
State New, archived
Headers show
Series ARM: dts: Add Facebook AST2600 BMCs | expand

Commit Message

Tao Ren Aug. 5, 2021, 10:28 p.m. UTC 
From: Tao Ren <rentao.bupt@gmail.com>

Add initial version of device tree for Facebook Cloudripper (AST2600) BMC.

Cloudripper is Facebook's next generation switch platform with an AST2600
BMC integrated for health monitoring purpose.

Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
---
 Changes in v2:
  - added more notes about the new platform in patch description.
  - "spi1" was removed as the driver is not ready.
  - "mac3" properties were updated with pinctrl, and etc.

 arch/arm/boot/dts/Makefile                    |   1 +
 .../dts/aspeed-bmc-facebook-cloudripper.dts   | 539 ++++++++++++++++++
 2 files changed, 540 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed-bmc-facebook-cloudripper.dts

Comments

Joel Stanley Aug. 13, 2021, 1:29 a.m. UTC | #1 
On Thu, 5 Aug 2021 at 22:28, <rentao.bupt@gmail.com> wrote:
> +&mdio1 {
> +       status = "okay";

You're enabling this but it looks like it's unused?

> +};
> +
> +&mdio3 {
> +       status = "okay";
> +
> +       ethphy1: ethernet-phy@13 {
> +               compatible = "ethernet-phy-ieee802.3-c22";
> +               reg = <0x0d>;
> +       };
> +};
> +
> +&mac3 {
> +       status = "okay";
> +       phy-mode = "rgmii";
> +       phy-handle = <&ethphy1>;
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pinctrl_rgmii4_default>;
> +};
Tao Ren Aug. 13, 2021, 3:40 a.m. UTC | #2 
On Fri, Aug 13, 2021 at 01:29:17AM +0000, Joel Stanley wrote:
> On Thu, 5 Aug 2021 at 22:28, <rentao.bupt@gmail.com> wrote:
> > +&mdio1 {
> > +       status = "okay";
> 
> You're enabling this but it looks like it's unused?

Thanks Joel for the careful review. The MDIO controller is not paired
with BMC MAC; instead, it's connected to the MDC/MDIO interface of the
on-board switch (whose ports are connected to BMC, Host and front panel
management port).

In other word, the MDIO controller is used, but we do need some user
space scripts to control the controller. What's your suggestion? For
example, should I add some comments to explain the purpose?


Cheers,

Tao

> 
> > +};
> > +
> > +&mdio3 {
> > +       status = "okay";
> > +
> > +       ethphy1: ethernet-phy@13 {
> > +               compatible = "ethernet-phy-ieee802.3-c22";
> > +               reg = <0x0d>;
> > +       };
> > +};
> > +
> > +&mac3 {
> > +       status = "okay";
> > +       phy-mode = "rgmii";
> > +       phy-handle = <&ethphy1>;
> > +       pinctrl-names = "default";
> > +       pinctrl-0 = <&pinctrl_rgmii4_default>;
> > +};
Joel Stanley Aug. 13, 2021, 4:13 a.m. UTC | #3 
On Fri, 13 Aug 2021 at 03:40, Tao Ren <rentao.bupt@gmail.com> wrote:
>
> On Fri, Aug 13, 2021 at 01:29:17AM +0000, Joel Stanley wrote:
> > On Thu, 5 Aug 2021 at 22:28, <rentao.bupt@gmail.com> wrote:
> > > +&mdio1 {
> > > +       status = "okay";
> >
> > You're enabling this but it looks like it's unused?
>
> Thanks Joel for the careful review. The MDIO controller is not paired
> with BMC MAC; instead, it's connected to the MDC/MDIO interface of the
> on-board switch (whose ports are connected to BMC, Host and front panel
> management port).

I see!

>
> In other word, the MDIO controller is used, but we do need some user
> space scripts to control the controller. What's your suggestion? For
> example, should I add some comments to explain the purpose?

Yes, that would make sense.

I've applied your patch, so if you want to add comments please send a
diff against this tree:

https://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc.git/log/?h=dt-for-v5.15
Andrew Lunn Aug. 13, 2021, 2:45 p.m. UTC | #4 
On Thu, Aug 12, 2021 at 08:40:17PM -0700, Tao Ren wrote:
> On Fri, Aug 13, 2021 at 01:29:17AM +0000, Joel Stanley wrote:
> > On Thu, 5 Aug 2021 at 22:28, <rentao.bupt@gmail.com> wrote:
> > > +&mdio1 {
> > > +       status = "okay";
> > 
> > You're enabling this but it looks like it's unused?
> 
> Thanks Joel for the careful review. The MDIO controller is not paired
> with BMC MAC; instead, it's connected to the MDC/MDIO interface of the
> on-board switch (whose ports are connected to BMC, Host and front panel
> management port).

What switch is it? Is there a DSA driver for it? drivers/net/dsa/*
Ideally you want Linux to be controlling the switch, in the standard
linux way.

     Andrew
Tao Ren Aug. 14, 2021, 5:22 a.m. UTC | #5 
Hi Andrew,

On Fri, Aug 13, 2021 at 04:45:58PM +0200, Andrew Lunn wrote:
> On Thu, Aug 12, 2021 at 08:40:17PM -0700, Tao Ren wrote:
> > On Fri, Aug 13, 2021 at 01:29:17AM +0000, Joel Stanley wrote:
> > > On Thu, 5 Aug 2021 at 22:28, <rentao.bupt@gmail.com> wrote:
> > > > +&mdio1 {
> > > > +       status = "okay";
> > > 
> > > You're enabling this but it looks like it's unused?
> > 
> > Thanks Joel for the careful review. The MDIO controller is not paired
> > with BMC MAC; instead, it's connected to the MDC/MDIO interface of the
> > on-board switch (whose ports are connected to BMC, Host and front panel
> > management port).
> 
> What switch is it? Is there a DSA driver for it? drivers/net/dsa/*
> Ideally you want Linux to be controlling the switch, in the standard
> linux way.
> 
>      Andrew

Thanks for jumping in. We are using BCM5389 and the MDIO bus is used to
access BCM5389 MDC/MDIO interface in Pseudo-PHY mode.

I didn't know drivers/net/dsa, but let me check out the drivers and see
if it works in the Cloudripper environment.


Thanks,

Tao
Andrew Lunn Aug. 14, 2021, 3:26 p.m. UTC | #6 
> Thanks for jumping in. We are using BCM5389 and the MDIO bus is used to
> access BCM5389 MDC/MDIO interface in Pseudo-PHY mode.
> 
> I didn't know drivers/net/dsa, but let me check out the drivers and see
> if it works in the Cloudripper environment.

The b53 driver knows about this switch, so please make use of that
driver. See Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml
for how you describe it in DT.

    Andrew
Tao Ren Aug. 17, 2021, 12:01 a.m. UTC | #7 
On Sat, Aug 14, 2021 at 05:26:55PM +0200, Andrew Lunn wrote:
> > Thanks for jumping in. We are using BCM5389 and the MDIO bus is used to
> > access BCM5389 MDC/MDIO interface in Pseudo-PHY mode.
> > 
> > I didn't know drivers/net/dsa, but let me check out the drivers and see
> > if it works in the Cloudripper environment.
> 
> The b53 driver knows about this switch, so please make use of that
> driver. See Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml
> for how you describe it in DT.
> 
>     Andrew

Thank you Andrew for looking into it. I will update dts and send out
followup patch after validation (perhaps after v5.15 merge window).


Thanks,

Tao
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 90aed2c2959a..74c760038f28 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1409,6 +1409,7 @@  dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-arm-stardragon4800-rep2.dtb \
 	aspeed-bmc-asrock-e3c246d4i.dtb \
 	aspeed-bmc-bytedance-g220a.dtb \
+	aspeed-bmc-facebook-cloudripper.dtb \
 	aspeed-bmc-facebook-cmm.dtb \
 	aspeed-bmc-facebook-galaxy100.dtb \
 	aspeed-bmc-facebook-minipack.dtb \
diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-cloudripper.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-cloudripper.dts
new file mode 100644
index 000000000000..01ec3ce0a29d
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-cloudripper.dts
@@ -0,0 +1,539 @@ 
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2020 Facebook Inc.
+
+/dts-v1/;
+
+#include <dt-bindings/leds/common.h>
+#include "ast2600-facebook-netbmc-common.dtsi"
+
+/ {
+	model = "Facebook Cloudripper BMC";
+	compatible = "facebook,cloudripper-bmc", "aspeed,ast2600";
+
+	aliases {
+		/*
+		 * PCA9548 (1-0070) provides 8 channels connecting to
+		 * SMB (Switch Main Board).
+		 */
+		i2c16 = &imux16;
+		i2c17 = &imux17;
+		i2c18 = &imux18;
+		i2c19 = &imux19;
+		i2c20 = &imux20;
+		i2c21 = &imux21;
+		i2c22 = &imux22;
+		i2c23 = &imux23;
+
+		/*
+		 * PCA9548 (2-0070) provides 8 channels connecting to
+		 * SCM (System Controller Module).
+		 */
+		i2c24 = &imux24;
+		i2c25 = &imux25;
+		i2c26 = &imux26;
+		i2c27 = &imux27;
+		i2c28 = &imux28;
+		i2c29 = &imux29;
+		i2c30 = &imux30;
+		i2c31 = &imux31;
+
+		/*
+		 * PCA9548 (3-0070) provides 8 channels connecting to
+		 * SMB (Switch Main Board).
+		 */
+		i2c32 = &imux32;
+		i2c33 = &imux33;
+		i2c34 = &imux34;
+		i2c35 = &imux35;
+		i2c36 = &imux36;
+		i2c37 = &imux37;
+		i2c38 = &imux38;
+		i2c39 = &imux39;
+
+		/*
+		 * PCA9548 (8-0070) provides 8 channels connecting to
+		 * PDB (Power Delivery Board).
+		 */
+		i2c40 = &imux40;
+		i2c41 = &imux41;
+		i2c42 = &imux42;
+		i2c43 = &imux43;
+		i2c44 = &imux44;
+		i2c45 = &imux45;
+		i2c46 = &imux46;
+		i2c47 = &imux47;
+
+		/*
+		 * PCA9548 (15-0076) provides 8 channels connecting to
+		 * FCM (Fan Controller Module).
+		 */
+		i2c48 = &imux48;
+		i2c49 = &imux49;
+		i2c50 = &imux50;
+		i2c51 = &imux51;
+		i2c52 = &imux52;
+		i2c53 = &imux53;
+		i2c54 = &imux54;
+		i2c55 = &imux55;
+	};
+
+	spi_gpio: spi-gpio {
+		num-chipselects = <2>;
+		cs-gpios = <&gpio0 ASPEED_GPIO(X, 0) GPIO_ACTIVE_LOW>,
+			   <&gpio0 ASPEED_GPIO(X, 1) GPIO_ACTIVE_HIGH>;
+
+		eeprom@1 {
+			compatible = "atmel,at93c46d";
+			spi-max-frequency = <250000>;
+			data-size = <16>;
+			spi-cs-high;
+			reg = <1>;
+		};
+	};
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&mdio1 {
+	status = "okay";
+};
+
+&mdio3 {
+	status = "okay";
+
+	ethphy1: ethernet-phy@13 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0x0d>;
+	};
+};
+
+&mac3 {
+	status = "okay";
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy1>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii4_default>;
+};
+
+&i2c0 {
+	multi-master;
+	bus-frequency = <1000000>;
+};
+
+&i2c1 {
+	/*
+	 * PCA9548 (1-0070) provides 8 channels connecting to SMB (Switch
+	 * Main Board).
+	 */
+	i2c-switch@70 {
+		compatible = "nxp,pca9548";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x70>;
+		i2c-mux-idle-disconnect;
+
+		imux16: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux17: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		imux18: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux19: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+
+		imux20: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <4>;
+		};
+
+		imux21: i2c@5 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <5>;
+		};
+
+		imux22: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <6>;
+		};
+
+		imux23: i2c@7 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <7>;
+		};
+	};
+};
+
+&i2c2 {
+	/*
+	 * PCA9548 (2-0070) provides 8 channels connecting to SCM (System
+	 * Controller Module).
+	 */
+	i2c-switch@70 {
+		compatible = "nxp,pca9548";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x70>;
+		i2c-mux-idle-disconnect;
+
+		imux24: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux25: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		imux26: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux27: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+
+		imux28: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <4>;
+		};
+
+		imux29: i2c@5 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <5>;
+		};
+
+		imux30: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <6>;
+		};
+
+		imux31: i2c@7 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <7>;
+		};
+	};
+};
+
+&i2c3 {
+	/*
+	 * PCA9548 (3-0070) provides 8 channels connecting to SMB (Switch
+	 * Main Board).
+	 */
+	i2c-switch@70 {
+		compatible = "nxp,pca9548";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x70>;
+		i2c-mux-idle-disconnect;
+
+		imux32: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux33: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		imux34: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux35: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+
+		imux36: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <4>;
+		};
+
+		imux37: i2c@5 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <5>;
+		};
+
+		imux38: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <6>;
+		};
+
+		imux39: i2c@7 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <7>;
+		};
+	};
+};
+
+&i2c6 {
+	lp5012@14 {
+		compatible = "ti,lp5012";
+		reg = <0x14>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		multi-led@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			color = <LED_COLOR_ID_MULTI>;
+			function = LED_FUNCTION_ACTIVITY;
+			label = "sys";
+
+			led@0 {
+				reg = <0>;
+				color = <LED_COLOR_ID_RED>;
+			};
+
+			led@1 {
+				reg = <1>;
+				color = <LED_COLOR_ID_BLUE>;
+			};
+
+			led@2 {
+				reg = <2>;
+				color = <LED_COLOR_ID_GREEN>;
+			};
+		};
+
+		multi-led@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			color = <LED_COLOR_ID_MULTI>;
+			function = LED_FUNCTION_ACTIVITY;
+			label = "fan";
+
+			led@0 {
+				reg = <0>;
+				color = <LED_COLOR_ID_RED>;
+			};
+
+			led@1 {
+				reg = <1>;
+				color = <LED_COLOR_ID_BLUE>;
+			};
+
+			led@2 {
+				reg = <2>;
+				color = <LED_COLOR_ID_GREEN>;
+			};
+		};
+
+		multi-led@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			color = <LED_COLOR_ID_MULTI>;
+			function = LED_FUNCTION_ACTIVITY;
+			label = "psu";
+
+			led@0 {
+				reg = <0>;
+				color = <LED_COLOR_ID_RED>;
+			};
+
+			led@1 {
+				reg = <1>;
+				color = <LED_COLOR_ID_BLUE>;
+			};
+
+			led@2 {
+				reg = <2>;
+				color = <LED_COLOR_ID_GREEN>;
+			};
+		};
+
+		multi-led@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+			color = <LED_COLOR_ID_MULTI>;
+			function = LED_FUNCTION_ACTIVITY;
+			label = "scm";
+
+			led@0 {
+				reg = <0>;
+				color = <LED_COLOR_ID_RED>;
+			};
+
+			led@1 {
+				reg = <1>;
+				color = <LED_COLOR_ID_BLUE>;
+			};
+
+			led@2 {
+				reg = <2>;
+				color = <LED_COLOR_ID_GREEN>;
+			};
+		};
+	};
+};
+
+&i2c8 {
+	/*
+	 * PCA9548 (8-0070) provides 8 channels connecting to PDB (Power
+	 * Delivery Board).
+	 */
+	i2c-switch@70 {
+		compatible = "nxp,pca9548";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x70>;
+		i2c-mux-idle-disconnect;
+
+		imux40: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux41: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		imux42: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux43: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+
+		imux44: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <4>;
+		};
+
+		imux45: i2c@5 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <5>;
+		};
+
+		imux46: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <6>;
+		};
+
+		imux47: i2c@7 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <7>;
+		};
+
+	};
+};
+
+&i2c15 {
+	/*
+	 * PCA9548 (15-0076) provides 8 channels connecting to FCM (Fan
+	 * Controller Module).
+	 */
+	i2c-switch@76 {
+		compatible = "nxp,pca9548";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x76>;
+		i2c-mux-idle-disconnect;
+
+		imux48: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux49: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		imux50: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux51: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+
+		imux52: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <4>;
+		};
+
+		imux53: i2c@5 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <5>;
+		};
+
+		imux54: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <6>;
+		};
+
+		imux55: i2c@7 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <7>;
+		};
+	};
+};