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Message-Id: <20211019060155.945-3-quan@os.amperecomputing.com>
Date: Tue, 19 Oct 2021 13:01:54 +0700
From: Quan Nguyen <quan@...amperecomputing.com>
To: Rob Herring <robh+dt@...nel.org>, Joel Stanley <joel@....id.au>,
Andrew Jeffery <andrew@...id.au>, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
OpenBMC Maillist <openbmc@...ts.ozlabs.org>
Cc: Open Source Submission <patches@...erecomputing.com>,
Phong Vo <phong@...amperecomputing.com>,
"Thang Q . Nguyen" <thang@...amperecomputing.com>
Subject: [PATCH v2 2/3] ARM: dts: aspeed: mtjade: Add I2C buses for NVMe devices
This commit adds configuration i2c busses for 24 NVMe slots and
2 M2 NVMe slots found on Mt.Jade hardware reference platform
with Ampere's Altra processor family.
Signed-off-by: Quan Nguyen <quan@...amperecomputing.com>
---
v2:
+ Introduced in v2
.../arm/boot/dts/aspeed-bmc-ampere-mtjade.dts | 258 ++++++++++++++++++
1 file changed, 258 insertions(+)
diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtjade.dts b/arch/arm/boot/dts/aspeed-bmc-ampere-mtjade.dts
index 3515d55bd312..723c7063c223 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ampere-mtjade.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtjade.dts
@@ -7,6 +7,50 @@ / {
model = "Ampere Mt. Jade BMC";
compatible = "ampere,mtjade-bmc", "aspeed,ast2500";
+ aliases {
+ /*
+ * i2c bus 50-57 assigned to NVMe slot 0-7
+ */
+ i2c50 = &nvmeslot_0;
+ i2c51 = &nvmeslot_1;
+ i2c52 = &nvmeslot_2;
+ i2c53 = &nvmeslot_3;
+ i2c54 = &nvmeslot_4;
+ i2c55 = &nvmeslot_5;
+ i2c56 = &nvmeslot_6;
+ i2c57 = &nvmeslot_7;
+
+ /*
+ * i2c bus 60-67 assigned to NVMe slot 8-15
+ */
+ i2c60 = &nvmeslot_8;
+ i2c61 = &nvmeslot_9;
+ i2c62 = &nvmeslot_10;
+ i2c63 = &nvmeslot_11;
+ i2c64 = &nvmeslot_12;
+ i2c65 = &nvmeslot_13;
+ i2c66 = &nvmeslot_14;
+ i2c67 = &nvmeslot_15;
+
+ /*
+ * i2c bus 70-77 assigned to NVMe slot 16-23
+ */
+ i2c70 = &nvmeslot_16;
+ i2c71 = &nvmeslot_17;
+ i2c72 = &nvmeslot_18;
+ i2c73 = &nvmeslot_19;
+ i2c74 = &nvmeslot_20;
+ i2c75 = &nvmeslot_21;
+ i2c76 = &nvmeslot_22;
+ i2c77 = &nvmeslot_23;
+
+ /*
+ * i2c bus 80-81 assigned to NVMe M2 slot 0-1
+ */
+ i2c80 = &nvme_m2_0;
+ i2c81 = &nvme_m2_1;
+ };
+
chosen {
stdout-path = &uart5;
bootargs = "console=ttyS4,115200 earlycon";
@@ -445,6 +489,220 @@ rtc@51 {
&i2c5 {
status = "okay";
+ i2c-mux@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ nvmeslot_0_7: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x3>;
+ };
+ };
+
+ i2c-mux@71 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x71>;
+ i2c-mux-idle-disconnect;
+
+ nvmeslot_8_15: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x4>;
+ };
+
+ nvmeslot_16_23: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x3>;
+ };
+
+ };
+
+ i2c-mux@72 {
+ compatible = "nxp,pca9545";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x72>;
+ i2c-mux-idle-disconnect;
+
+ nvme_m2_0: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+ };
+
+ nvme_m2_1: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1>;
+ };
+ };
+};
+
+&nvmeslot_0_7 {
+ status = "okay";
+
+ i2c-mux@75 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x75>;
+ i2c-mux-idle-disconnect;
+
+ nvmeslot_0: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+ };
+ nvmeslot_1: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1>;
+ };
+ nvmeslot_2: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x2>;
+ };
+ nvmeslot_3: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x3>;
+ };
+ nvmeslot_4: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x4>;
+ };
+ nvmeslot_5: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x5>;
+ };
+ nvmeslot_6: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x6>;
+ };
+ nvmeslot_7: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x7>;
+ };
+
+ };
+};
+
+&nvmeslot_8_15 {
+ status = "okay";
+
+ i2c-mux@75 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x75>;
+ i2c-mux-idle-disconnect;
+
+ nvmeslot_8: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+ };
+ nvmeslot_9: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1>;
+ };
+ nvmeslot_10: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x2>;
+ };
+ nvmeslot_11: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x3>;
+ };
+ nvmeslot_12: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x4>;
+ };
+ nvmeslot_13: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x5>;
+ };
+ nvmeslot_14: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x6>;
+ };
+ nvmeslot_15: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x7>;
+ };
+ };
+};
+
+&nvmeslot_16_23 {
+ status = "okay";
+
+ i2c-mux@75 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x75>;
+ i2c-mux-idle-disconnect;
+
+ nvmeslot_16: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+ };
+ nvmeslot_17: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1>;
+ };
+ nvmeslot_18: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x2>;
+ };
+ nvmeslot_19: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x3>;
+ };
+ nvmeslot_20: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x4>;
+ };
+ nvmeslot_21: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x5>;
+ };
+ nvmeslot_22: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x6>;
+ };
+ nvmeslot_23: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x7>;
+ };
+ };
};
&i2c6 {
--
2.28.0
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