[PATCH 05/12] ARM: dts: bcm6878: Add BCMBCA peripherals

Linus Walleij
2025-03-28T07:44:13Z

with varying IRQ assignments.

Add the first and second watchdog, GPIO, RNG, LED and
DMA blocks for the BCM6878 based on the vendor files
6878_map_part.h and 6878_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@linaro.org>
---
arch/arm/boot/dts/broadcom/bcm6878.dtsi | 118 ++++++++++++++++++++++++++++++++
1 file changed, 118 insertions(+)

diff --git a/arch/arm/boot/dts/broadcom/bcm6878.dtsi b/arch/arm/boot/dts/broadcom/bcm6878.dtsi
index cf378970db08c05c40564a38931417a7be759532..f317fc888da0ef449d9b5153677e6dadd869a7db 100644
--- a/arch/arm/boot/dts/broadcom/bcm6878.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm6878.dtsi
@@ -108,6 +108,111 @@ bus@ff800000 {
#size-cells = <1>;
ranges = <0 0xff800000 0x800000>;

+ watchdog@480 {
+ compatible = "brcm,bcm6345-wdt";
+ reg = <0x480 0x10>;
+ };
+
+ watchdog@4c0 {
+ compatible = "brcm,bcm6345-wdt";
+ reg = <0x4c0 0x10>;
+ status = "disabled";
+ };
+
+ /* GPIOs 0 .. 31 */
+ gpio0: gpio@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@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@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@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@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@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@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@51c {
+ compatible = "brcm,bcm6345-gpio";
+ reg = <0x51c 0x04>, <0x53c 0x04>;
+ reg-names = "dirout", "dat";
+ gpio-controller;
+ #gpio-cells = <2>;
+ status = "disabled";
+ };
+
+ rng@b80 {
+ compatible = "brcm,iproc-rng200";
+ reg = <0xb80 0x28>;
+ interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ leds: led-controller@700 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "brcm,bcm63138-leds";
+ reg = <0x700 0xdc>;
+ status = "disabled";
+ };
+
hsspi: spi@1000 {
#address-cells = <1>;
#size-cells = <0>;
@@ -134,6 +239,19 @@ nandcs: nand@0 {
};
};

+ pl081_dma: dma-controller@11000 {
+ compatible = "arm,pl081", "arm,primecell";
+ // The magic B105F00D info is missing
+ arm,primecell-periphid = <0x00041081>;
+ reg = <0x11000 0x1000>;
+ interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+ memcpy-burst-size = <256>;
+ memcpy-bus-width = <32>;
+ clocks = <&periph_clk>;
+ clock-names = "apb_pclk";
+ #dma-cells = <2>;
+ };
+
uart0: serial@12000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x12000 0x1000>;

--
2.48.1