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From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To: p.zabel@pengutronix.de, robh+dt@kernel.org
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	haitao.suo@bitmain.com, darren.tsao@bitmain.com,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Subject: [PATCH v2 2/4] arm64: dts: bitmain: Add reset controller support for BM1880 SoC
Date: Wed,  8 May 2019 22:23:17 +0530	[thread overview]
Message-ID: <20190508165319.19822-3-manivannan.sadhasivam@linaro.org> (raw)
In-Reply-To: <20190508165319.19822-1-manivannan.sadhasivam@linaro.org>

Add reset controller support for Bitmain BM1880 SoC. This SoC has two
reset controllers, each controlling reset lines of different peripherals.
This commit also adds reset support to UART peripherals.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
---
 arch/arm64/boot/dts/bitmain/bm1880.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/bitmain/bm1880.dtsi b/arch/arm64/boot/dts/bitmain/bm1880.dtsi
index fdfdc65d29ef..37ecb760a2d2 100644
--- a/arch/arm64/boot/dts/bitmain/bm1880.dtsi
+++ b/arch/arm64/boot/dts/bitmain/bm1880.dtsi
@@ -5,6 +5,7 @@
  */
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/reset/bitmain,bm1880-reset.h>
 
 / {
 	compatible = "bitmain,bm1880";
@@ -92,6 +93,18 @@
 				compatible = "bitmain,bm1880-pinctrl";
 				reg = <0x50 0x4B0>;
 			};
+
+			clk_rst: reset-controller@800 {
+				compatible = "bitmain,bm1880-reset";
+				reg = <0x800 0x8>;
+				#reset-cells = <1>;
+			};
+
+			rst: reset-controller@C00 {
+				compatible = "bitmain,bm1880-reset";
+				reg = <0xC00 0x8>;
+				#reset-cells = <1>;
+			};
 		};
 
 		uart0: serial@58018000 {
@@ -100,6 +113,7 @@
 			interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
+			resets = <&rst BM1880_RST_UART0_1_CLK>;
 			status = "disabled";
 		};
 
@@ -109,6 +123,7 @@
 			interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
+			resets = <&rst BM1880_RST_UART0_1_ACLK>;
 			status = "disabled";
 		};
 
@@ -118,6 +133,7 @@
 			interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
+			resets = <&rst BM1880_RST_UART2_3_CLK>;
 			status = "disabled";
 		};
 
@@ -127,6 +143,7 @@
 			interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
+			resets = <&rst BM1880_RST_UART2_3_ACLK>;
 			status = "disabled";
 		};
 	};
-- 
2.17.1


  parent reply	other threads:[~2019-05-08 16:54 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-08 16:53 [PATCH v2 0/4] " Manivannan Sadhasivam
2019-05-08 16:53 ` [PATCH v2 1/4] dt-bindings: reset: Add devicetree binding for BM1880 reset controller Manivannan Sadhasivam
2019-05-08 16:53 ` Manivannan Sadhasivam [this message]
2019-05-08 16:53 ` [PATCH v2 3/4] reset: Add reset controller support for BM1880 SoC Manivannan Sadhasivam
2019-05-08 16:53 ` [PATCH v2 4/4] reset: Switch to SPDX license identifier for reset-simple Manivannan Sadhasivam
2019-05-09  6:24   ` Maxime Ripard
2019-05-10  8:57 ` [PATCH v2 0/4] Add reset controller support for BM1880 SoC Manivannan Sadhasivam

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