[PATCH 11/12] ARM64: dts: bcm6858: Add BCMBCA peripherals

Linus Walleij
2025-03-28T07:44:22Z

with varying IRQ assignments. ARM64 SoCs have additional
peripherals at 0xff858000. On BCM6858 the PERF window was
too big so adjust it down to its real size (0x3000).

Add the watchdog, GPIO blocks, RNG, LED, second UART and DMA
blocks for the BCM6858 based on the vendor files 6858_map_part.h
and 6858_intr.h from the "bcmopen-consumer" code drop.

Curiously, on the BCM6858, the PL081 DMA block is separate
from the two peripheral groups PERF and PERF1, so we put it
in a separate node in the device tree since this is what the
documentation says.

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/arm64/boot/dts/broadcom/bcmbca/bcm6858.dtsi | 120 ++++++++++++++++++++++-
1 file changed, 119 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/broadcom/bcmbca/bcm6858.dtsi b/arch/arm64/boot/dts/broadcom/bcmbca/bcm6858.dtsi
index caeaf428dc15db3089bf4dc62c4a272782c22c3f..a53520ce693c7360c603e8f46cefe134a509d051 100644
--- a/arch/arm64/boot/dts/broadcom/bcmbca/bcm6858.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm6858.dtsi
@@ -111,11 +111,12 @@ gic: interrupt-controller@1000 {
};
};

+ /* PERF Peripherals */
bus@ff800000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0x0 0x0 0xff800000 0x62000>;
+ ranges = <0x0 0x0 0xff800000 0x3000>;

twd: timer-mfd@400 {
compatible = "brcm,bcm4908-twd", "simple-mfd", "syscon";
@@ -136,6 +137,86 @@ watchdog@28 {
};
};

+ /* 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";
+ };
+
uart0: serial@640 {
compatible = "brcm,bcm6345-uart";
reg = <0x640 0x18>;
@@ -145,6 +226,29 @@ uart0: serial@640 {
status = "disabled";
};

+ uart1: serial@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@800 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "brcm,bcm63138-leds";
+ reg = <0x800 0xdc>;
+ status = "disabled";
+ };
+
+ rng@b80 {
+ compatible = "brcm,iproc-rng200";
+ reg = <0xb80 0x28>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
hsspi: spi@1000 {
#address-cells = <1>;
#size-cells = <0>;
@@ -171,4 +275,18 @@ nandcs: nand@0 {
};
};
};
+
+ /* This is NOT in the PERF1 Peripheral group on this SoC! */
+ pl081_dma: dma-controller@ff859000 {
+ compatible = "arm,pl081", "arm,primecell";
+ // The magic B105F00D info is missing
+ arm,primecell-periphid = <0x00041081>;
+ reg = <0xff859000 0x1000>;
+ interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;