[PATCH 10/12] ARM64: dts: bcm6856: Add BCMBCA peripherals

Linus Walleij linus.walleij at linaro.org
Fri Mar 28 00:44:00 PDT 2025


All the BCMBCA SoCs share a set of peripherals at 0xff800000,
albeit at slightly varying memory locations on the bus and
with varying IRQ assignments. ARM64 SoCs have additional
peripherals at 0xff858000. On BCM6856 the PERF window was
too big so adjust it down to its real size (0x3000) and add
another window for PERF1 at 0xff858000.

Add the watchdog, GPIO blocks, RNG, LED, second UART and DMA
blocks for the BCM6856 based on the vendor files 6856_map_part.h
and 6856_intr.h from the "bcmopen-consumer" code drop.

This SoC has up to 256 possible GPIOs due to having 8
registers with 32 GPIOs in each available.

Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
---
 arch/arm64/boot/dts/broadcom/bcmbca/bcm6856.dtsi | 138 ++++++++++++++++++++++-
 1 file changed, 137 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/broadcom/bcmbca/bcm6856.dtsi b/arch/arm64/boot/dts/broadcom/bcmbca/bcm6856.dtsi
index 00c62c1e5df00c722884a7adfcb7be08a43c0dc3..d6d0b8e1a65b494be414dd5841b65f8ff489d684 100644
--- a/arch/arm64/boot/dts/broadcom/bcmbca/bcm6856.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm6856.dtsi
@@ -93,11 +93,103 @@ gic: interrupt-controller at 1000 {
 		};
 	};
 
+	/* PERF Peripherals */
 	bus at ff800000 {
 		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
-		ranges = <0x0 0x0 0xff800000 0x800000>;
+		ranges = <0x0 0x0 0xff800000 0x3000>;
+
+		watchdog at 480 {
+			compatible = "brcm,bcm6345-wdt";
+			reg = <0x480 0x10>;
+		};
+
+		watchdog at 4c0 {
+			compatible = "brcm,bcm6345-wdt";
+			reg = <0x4c0 0x10>;
+			status = "disabled";
+		};
+
+		/* GPIOs 0 .. 31 */
+		gpio0: gpio at 500 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x500 0x04>, <0x520 0x04>;
+			reg-names = "dirout", "dat";
+			gpio-controller;
+			#gpio-cells = <2>;
+			status = "disabled";
+		};
+
+		/* GPIOs 32 .. 63 */
+		gpio1: gpio at 504 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x504 0x04>, <0x524 0x04>;
+			reg-names = "dirout", "dat";
+			gpio-controller;
+			#gpio-cells = <2>;
+			status = "disabled";
+		};
+
+		/* GPIOs 64 .. 95 */
+		gpio2: gpio at 508 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x508 0x04>, <0x528 0x04>;
+			reg-names = "dirout", "dat";
+			gpio-controller;
+			#gpio-cells = <2>;
+			status = "disabled";
+		};
+
+		/* GPIOs 96 .. 127 */
+		gpio3: gpio at 50c {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x50c 0x04>, <0x52c 0x04>;
+			reg-names = "dirout", "dat";
+			gpio-controller;
+			#gpio-cells = <2>;
+			status = "disabled";
+		};
+
+		/* GPIOs 128 .. 159 */
+		gpio4: gpio at 510 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x510 0x04>, <0x530 0x04>;
+			reg-names = "dirout", "dat";
+			gpio-controller;
+			#gpio-cells = <2>;
+			status = "disabled";
+		};
+
+		/* GPIOs 160 .. 191 */
+		gpio5: gpio at 514 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x514 0x04>, <0x534 0x04>;
+			reg-names = "dirout", "dat";
+			gpio-controller;
+			#gpio-cells = <2>;
+			status = "disabled";
+		};
+
+		/* GPIOs 192 .. 223 */
+		gpio6: gpio at 518 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x518 0x04>, <0x538 0x04>;
+			reg-names = "dirout", "dat";
+			gpio-controller;
+			#gpio-cells = <2>;
+			status = "disabled";
+		};
+
+		/* GPIOs 224 .. 255 */
+		gpio7: gpio at 51c {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x51c 0x04>, <0x53c 0x04>;
+			reg-names = "dirout", "dat";
+			gpio-controller;
+			#gpio-cells = <2>;
+			status = "disabled";
+		};
 
 		uart0: serial at 640 {
 			compatible = "brcm,bcm6345-uart";
@@ -108,6 +200,29 @@ uart0: serial at 640 {
 			status = "disabled";
 		};
 
+		uart1: serial at 660 {
+			compatible = "brcm,bcm6345-uart";
+			reg = <0x660 0x18>;
+			interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&periph_clk>;
+			clock-names = "refclk";
+			status = "disabled";
+		};
+
+		leds: led-controller at 800 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,bcm63138-leds";
+			reg = <0x800 0xdc>;
+			status = "disabled";
+		};
+
+		rng at b80 {
+			compatible = "brcm,iproc-rng200";
+			reg = <0xb80 0x28>;
+			interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
 		hsspi: spi at 1000 {
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -134,4 +249,25 @@ nandcs: nand at 0 {
 			};
 		};
 	};
+
+	/* PERF1 Peripherals */
+	bus at ff858000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x0 0xff858000 0x4000>;
+
+		pl081_dma: dma-controller at 1000 {
+			compatible = "arm,pl081", "arm,primecell";
+			// The magic B105F00D info is missing
+			arm,primecell-periphid = <0x00041081>;
+			reg = <0x1000 0x1000>;
+			interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+			memcpy-burst-size = <256>;
+			memcpy-bus-width = <32>;
+			clocks = <&periph_clk>;
+			clock-names = "apb_pclk";
+			#dma-cells = <2>;
+		};
+	};
 };

-- 
2.48.1




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