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From: Ronald Claveau <linux-kernel-dev@aliel.fr>
To: Neil Armstrong <neil.armstrong@linaro.org>,
	 Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	 Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	 Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-amlogic@lists.infradead.org,  devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	 Ronald Claveau <linux-kernel-dev@aliel.fr>
Subject: [PATCH v2 2/3] arm64: dts: amlogic: t7: Add UART controllers nodes
Date: Thu, 16 Apr 2026 10:54:41 +0200	[thread overview]
Message-ID: <20260416-add-bluetooth-t7-vim4-v2-2-9a57098fd055@aliel.fr> (raw)
In-Reply-To: <20260416-add-bluetooth-t7-vim4-v2-0-9a57098fd055@aliel.fr>

Add device tree nodes for UART B through F (serial@7a000 to
serial@82000), completing the UART controller description for the T7
SoC. Each node includes the peripheral clock.

While at it, move the uart_a node to its correct position in the
bus address order (0x78000) to comply with the DT requirement that
nodes be sorted by their reg address. Complete the
uart_a node with its peripheral clock (CLKID_SYS_UART_A) and the
associated clock-names, matching the vendor default clock assignment,
consistent with the other UART nodes.

Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr>
---
 arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi | 61 +++++++++++++++++++++++++----
 1 file changed, 54 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
index 4a55d9641bc9b..81c26b1e3e7a4 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
@@ -577,13 +577,6 @@ gpio_intc: interrupt-controller@4080 {
 					<10 11 12 13 14 15 16 17 18 19 20 21>;
 			};
 
-			uart_a: serial@78000 {
-				compatible = "amlogic,t7-uart", "amlogic,meson-s4-uart";
-				reg = <0x0 0x78000 0x0 0x18>;
-				interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
-				status = "disabled";
-			};
-
 			gp0: clock-controller@8080 {
 				compatible = "amlogic,t7-gp0-pll";
 				reg = <0x0 0x8080 0x0 0x20>;
@@ -713,6 +706,60 @@ pwm_ao_cd: pwm@60000 {
 				status = "disabled";
 			};
 
+			uart_a: serial@78000 {
+				compatible = "amlogic,t7-uart", "amlogic,meson-s4-uart";
+				reg = <0x0 0x78000 0x0 0x18>;
+				interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
+				clocks = <&xtal>, <&clkc_periphs CLKID_SYS_UART_A>, <&xtal>;
+				clock-names = "xtal", "pclk", "baud";
+				status = "disabled";
+			};
+
+			uart_b: serial@7a000 {
+				compatible = "amlogic,t7-uart", "amlogic,meson-s4-uart";
+				reg = <0x0 0x7a000 0x0 0x18>;
+				interrupts = <GIC_SPI 169 IRQ_TYPE_EDGE_RISING>;
+				clocks = <&xtal>, <&clkc_periphs CLKID_SYS_UART_B>, <&xtal>;
+				clock-names = "xtal", "pclk", "baud";
+				status = "disabled";
+			};
+
+			uart_c: serial@7c000 {
+				compatible = "amlogic,t7-uart", "amlogic,meson-s4-uart";
+				reg = <0x0 0x7c000 0x0 0x18>;
+				interrupts = <GIC_SPI 170 IRQ_TYPE_EDGE_RISING>;
+				clocks = <&xtal>, <&clkc_periphs CLKID_SYS_UART_C>, <&xtal>;
+				clock-names = "xtal", "pclk", "baud";
+				status = "disabled";
+			};
+
+			uart_d: serial@7e000 {
+				compatible = "amlogic,t7-uart", "amlogic,meson-s4-uart";
+				reg = <0x0 0x7e000 0x0 0x18>;
+				interrupts = <GIC_SPI 171 IRQ_TYPE_EDGE_RISING>;
+				clocks = <&xtal>, <&clkc_periphs CLKID_SYS_UART_D>, <&xtal>;
+				clock-names = "xtal", "pclk", "baud";
+				status = "disabled";
+			};
+
+			uart_e: serial@80000 {
+				compatible = "amlogic,t7-uart", "amlogic,meson-s4-uart";
+				reg = <0x0 0x80000 0x0 0x18>;
+				interrupts = <GIC_SPI 172 IRQ_TYPE_EDGE_RISING>;
+				clocks = <&xtal>, <&clkc_periphs CLKID_SYS_UART_E>, <&xtal>;
+				clock-names = "xtal", "pclk", "baud";
+				status = "disabled";
+			};
+
+			uart_f: serial@82000 {
+				compatible = "amlogic,t7-uart", "amlogic,meson-s4-uart";
+				reg = <0x0 0x82000 0x0 0x18>;
+				interrupts = <GIC_SPI 173 IRQ_TYPE_EDGE_RISING>;
+				clocks = <&xtal>, <&clkc_periphs CLKID_SYS_UART_F>, <&xtal>;
+				clock-names = "xtal", "pclk", "baud";
+				status = "disabled";
+			};
+
 			sd_emmc_a: mmc@88000 {
 				compatible = "amlogic,t7-mmc", "amlogic,meson-axg-mmc";
 				reg = <0x0 0x88000 0x0 0x800>;

-- 
2.49.0


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  parent reply	other threads:[~2026-04-16  8:55 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-16  8:54 [PATCH v2 0/3] arm64: dts: amlogic: t7: Add UART support and enable Bluetooth on VIM4 Ronald Claveau
2026-04-16  8:54 ` [PATCH v2 1/3] arm64: dts: amlogic: t7: Add uart_c pinctrl pins group Ronald Claveau
2026-04-20  8:47   ` Neil Armstrong
2026-04-16  8:54 ` Ronald Claveau [this message]
2026-04-20  8:47   ` [PATCH v2 2/3] arm64: dts: amlogic: t7: Add UART controllers nodes Neil Armstrong
2026-04-16  8:54 ` [PATCH v2 3/3] arm64: dts: amlogic: t7: khadas-vim4: Enable Bluetooth Ronald Claveau
2026-04-20  8:47   ` Neil Armstrong
2026-04-20  9:26     ` Ronald Claveau

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