[PATCH 09/12] ARM64: dts: bcm4908: Add BCMBCA peripherals

Linus Walleij
2025-03-28T07:44:19Z

with varying IRQ assignments. ARM64 SoCs have additional
peripherals at 0xff858000.

Add the watchdog, remaining GPIO blocks, RNG, and DMA blocks
for the BCM4908 based on the vendor files 4908_map_part.h
and 4908_intr.h from the "bcmopen-consumer" code drop.

This SoC has up to 320 possible GPIOs due to having 10
registers with 32 GPIOs in each available.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi | 122 ++++++++++++++++++++++-
1 file changed, 120 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi
index 613ba7ee43d6489ea0f1490d2fccaf90961b2694..a2e5277a2e77c0bdec5d933d3121b4ebf2d2d07b 100644
--- a/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi
@@ -323,6 +323,7 @@ pmb: power-controller@2800c0 {
};
};

+ /* PERF Peripherals */
bus@ff800000 {
compatible = "simple-bus";
#address-cells = <1>;
@@ -348,13 +349,103 @@ watchdog@28 {
};
};

- gpio0: gpio-controller@500 {
+ /* GPIOs 0 .. 31 */
+ gpio0: gpio@500 {
compatible = "brcm,bcm6345-gpio";
+ reg = <0x500 0x04>, <0x528 0x04>;
reg-names = "dirout", "dat";
- reg = <0x500 0x28>, <0x528 0x28>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ /* GPIOs 32 .. 63 */
+ gpio1: gpio@504 {
+ compatible = "brcm,bcm6345-gpio";
+ reg = <0x504 0x04>, <0x52c 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>, <0x530 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>, <0x534 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>, <0x538 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>, <0x53c 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>, <0x540 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>, <0x544 0x04>;
+ reg-names = "dirout", "dat";
+ gpio-controller;
+ #gpio-cells = <2>;
+ status = "disabled";
+ };
+
+ /* GPIOs 256 .. 287 */
+ gpio8: gpio@520 {
+ compatible = "brcm,bcm6345-gpio";
+ reg = <0x520 0x04>, <0x548 0x04>;
+ reg-names = "dirout", "dat";
+ gpio-controller;
+ #gpio-cells = <2>;
+ status = "disabled";
+ };
+
+ /* GPIOs 288 .. 319 */
+ gpio9: gpio@524 {
+ compatible = "brcm,bcm6345-gpio";
+ reg = <0x524 0x04>, <0x54c 0x04>;
+ reg-names = "dirout", "dat";
+ gpio-controller;
+ #gpio-cells = <2>;
+ status = "disabled";
};

pinctrl@560 {
@@ -584,6 +675,12 @@ leds: leds@800 {
#size-cells = <0>;
};

+ rng@b80 {
+ compatible = "brcm,iproc-rng200";
+ reg = <0xb80 0x28>;
+ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
hsspi: spi@1000 {
#address-cells = <1>;
#size-cells = <0>;
@@ -638,6 +735,27 @@ reset-controller@2644 {
};
};

+ /* PERF1 Peripherals */
+ bus@ff858000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x00 0x00 0xff858000 0x3000>;
+
+ pl081_dma: dma-controller@1000 {
+ compatible = "arm,pl081", "arm,primecell";
+ // The magic B105F00D info is missing
+ arm,primecell-periphid = <0x00041081>;
+ reg = <0x1000 0x1000>;
+ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+ memcpy-burst-size = <256>;
+ memcpy-bus-width = <32>;
+ clocks = <&periph_clk>;
+ clock-names = "apb_pclk";
+ #dma-cells = <2>;
+ };
+ };
+
reboot {
compatible = "syscon-reboot";
regmap = <&twd>;

--
2.48.1