From: Dylan Hung <dylan_hung@aspeedtech.com>
To: <robh@kernel.org>, <krzk+dt@kernel.org>, <conor+dt@kernel.org>,
<joel@jms.id.au>, <andrew@codeconstruct.com.au>,
<jk@codeconstruct.com.au>, <alexandre.belloni@bootlin.com>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-aspeed@lists.ozlabs.org>, <linux-kernel@vger.kernel.org>,
<linux-i3c@lists.infradead.org>
Cc: <BMC-SW@aspeedtech.com>
Subject: [PATCH 1/2] [RFC] ARM: dts: aspeed-g6: Add AST2600 I3Cs
Date: Mon, 6 May 2024 18:51:19 +0800 [thread overview]
Message-ID: <20240506105120.3028083-2-dylan_hung@aspeedtech.com> (raw)
In-Reply-To: <20240506105120.3028083-1-dylan_hung@aspeedtech.com>
The AST2600 has 6 I3Cs which are based on dw-i3c along with Aspeed
proprietary enhancements.
Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
---
arch/arm/boot/dts/aspeed/aspeed-g6.dtsi | 137 ++++++++++++++++++++++++
1 file changed, 137 insertions(+)
diff --git a/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
index 29f94696d8b1..d0d685747b74 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
+++ b/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
@@ -13,6 +13,12 @@ / {
interrupt-parent = <&gic>;
aliases {
+ i3c0 = &i3c0;
+ i3c1 = &i3c1;
+ i3c2 = &i3c2;
+ i3c3 = &i3c3;
+ i3c4 = &i3c4;
+ i3c5 = &i3c5;
i2c0 = &i2c0;
i2c1 = &i2c1;
i2c2 = &i2c2;
@@ -579,6 +585,13 @@ wdt4: watchdog@1e7850c0 {
status = "disabled";
};
+ i3c: bus@1e7a0000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x1e7a0000 0x8000>;
+ };
+
peci0: peci-controller@1e78b000 {
compatible = "aspeed,ast2600-peci";
reg = <0x1e78b000 0x100>;
@@ -1125,3 +1138,127 @@ i2c15: i2c-bus@800 {
status = "disabled";
};
};
+
+&i3c {
+ i3c_global: i3c-global {
+ compatible = "aspeed,ast2600-i3c-global", "simple-mfd", "syscon";
+ resets = <&syscon ASPEED_RESET_I3C>;
+ reg = <0x0 0x1000>;
+ };
+
+ i3c0: i3c@2000 {
+ compatible = "aspeed,ast2600-i3c";
+ reg = <0x2000 0x1000>;
+ clocks = <&syscon ASPEED_CLK_GATE_I3C0CLK>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i3c1_default>;
+ interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
+ aspeed,global-regs = <&i3c_global 0>;
+ status = "disabled";
+
+ i2c-scl-hz = <1000000>;
+ i3c-scl-hz = <2000000>;
+ i3c-od-scl-hi-period-ns = <380>;
+ i3c-od-scl-lo-period-ns = <620>;
+ i3c-pp-scl-hi-period-ns = <250>;
+ i3c-pp-scl-lo-period-ns = <250>;
+ sda-tx-hold-ns = <70>;
+ sda-pullup-ohms = <2000>;
+ };
+
+ i3c1: i3c@3000 {
+ compatible = "aspeed,ast2600-i3c";
+ reg = <0x3000 0x1000>;
+ clocks = <&syscon ASPEED_CLK_GATE_I3C1CLK>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i3c2_default>;
+ interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+ aspeed,global-regs = <&i3c_global 1>;
+ status = "disabled";
+
+ i2c-scl-hz = <1000000>;
+ i3c-scl-hz = <2000000>;
+ i3c-od-scl-hi-period-ns = <380>;
+ i3c-od-scl-lo-period-ns = <620>;
+ i3c-pp-scl-hi-period-ns = <250>;
+ i3c-pp-scl-lo-period-ns = <250>;
+ sda-tx-hold-ns = <70>;
+ sda-pullup-ohms = <2000>;
+ };
+
+ i3c2: i3c@4000 {
+ compatible = "aspeed,ast2600-i3c";
+ reg = <0x4000 0x1000>;
+ clocks = <&syscon ASPEED_CLK_GATE_I3C2CLK>;
+ interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
+ aspeed,global-regs = <&i3c_global 2>;
+ status = "disabled";
+
+ i2c-scl-hz = <1000000>;
+ i3c-scl-hz = <2000000>;
+ i3c-od-scl-hi-period-ns = <380>;
+ i3c-od-scl-lo-period-ns = <620>;
+ i3c-pp-scl-hi-period-ns = <250>;
+ i3c-pp-scl-lo-period-ns = <250>;
+ sda-tx-hold-ns = <70>;
+ sda-pullup-ohms = <2000>;
+ };
+
+ i3c3: i3c@5000 {
+ compatible = "aspeed,ast2600-i3c";
+ reg = <0x5000 0x1000>;
+ clocks = <&syscon ASPEED_CLK_GATE_I3C3CLK>;
+ interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+ aspeed,global-regs = <&i3c_global 3>;
+ status = "disabled";
+
+ i2c-scl-hz = <1000000>;
+ i3c-scl-hz = <2000000>;
+ i3c-od-scl-hi-period-ns = <380>;
+ i3c-od-scl-lo-period-ns = <620>;
+ i3c-pp-scl-hi-period-ns = <250>;
+ i3c-pp-scl-lo-period-ns = <250>;
+ sda-tx-hold-ns = <70>;
+ sda-pullup-ohms = <2000>;
+ };
+
+ i3c4: i3c@6000 {
+ compatible = "aspeed,ast2600-i3c";
+ reg = <0x6000 0x1000>;
+ clocks = <&syscon ASPEED_CLK_GATE_I3C4CLK>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i3c5_default>;
+ interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+ aspeed,global-regs = <&i3c_global 4>;
+ status = "disabled";
+
+ i2c-scl-hz = <1000000>;
+ i3c-scl-hz = <2000000>;
+ i3c-od-scl-hi-period-ns = <380>;
+ i3c-od-scl-lo-period-ns = <620>;
+ i3c-pp-scl-hi-period-ns = <250>;
+ i3c-pp-scl-lo-period-ns = <250>;
+ sda-tx-hold-ns = <70>;
+ sda-pullup-ohms = <2000>;
+ };
+
+ i3c5: i3c@7000 {
+ compatible = "aspeed,ast2600-i3c";
+ reg = <0x7000 0x1000>;
+ clocks = <&syscon ASPEED_CLK_GATE_I3C5CLK>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i3c6_default>;
+ interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+ aspeed,global-regs = <&i3c_global 5>;
+ status = "disabled";
+
+ i2c-scl-hz = <1000000>;
+ i3c-scl-hz = <2000000>;
+ i3c-od-scl-hi-period-ns = <380>;
+ i3c-od-scl-lo-period-ns = <620>;
+ i3c-pp-scl-hi-period-ns = <250>;
+ i3c-pp-scl-lo-period-ns = <250>;
+ sda-tx-hold-ns = <70>;
+ sda-pullup-ohms = <2000>;
+ };
+};
--
2.25.1
next prev parent reply other threads:[~2024-05-06 10:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-06 10:51 [PATCH 0/2] [RFC] i3c: ast2600: Add MCTP-over-I3C support Dylan Hung
2024-05-06 10:51 ` Dylan Hung [this message]
2024-05-06 10:51 ` [PATCH 2/2] [RFC] i3c: ast2600: Validate AST2600 I3C for MCTP-over-I3C Dylan Hung
2024-05-06 13:46 ` [PATCH 0/2] [RFC] i3c: ast2600: Add MCTP-over-I3C support Jeremy Kerr
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