[PATCH 04/12] ARM: dts: bcm6855: Add BCMBCA peripherals
Linus Walleij
linus.walleij at linaro.org
Fri Mar 28 00:43:54 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.
Add the first and second watchdog, GPIO, RNG, LED, DMA and
second PL011 UART blocks for the BCM6855 based on the vendor
files 6855_map_part.h and 6855_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/arm/boot/dts/broadcom/bcm6855.dtsi | 127 ++++++++++++++++++++++++++++++++
1 file changed, 127 insertions(+)
diff --git a/arch/arm/boot/dts/broadcom/bcm6855.dtsi b/arch/arm/boot/dts/broadcom/bcm6855.dtsi
index 52915ec6f339335d87b4e50e1c03625fffb9a45d..a88c3f0fbcb037ee5c6b31933415f90cb51ded2a 100644
--- a/arch/arm/boot/dts/broadcom/bcm6855.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm6855.dtsi
@@ -116,6 +116,103 @@ bus at ff800000 {
#size-cells = <1>;
ranges = <0 0xff800000 0x800000>;
+ 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";
+ };
+
+ rng at b80 {
+ compatible = "brcm,iproc-rng200";
+ reg = <0xb80 0x28>;
+ interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
hsspi: spi at 1000 {
#address-cells = <1>;
#size-cells = <0>;
@@ -143,6 +240,27 @@ nandcs: nand at 0 {
};
};
+ leds: led-controller at 3000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "brcm,bcm63138-leds";
+ reg = <0x3000 0xdc>;
+ status = "disabled";
+ };
+
+ pl081_dma: dma-controller at 11000 {
+ compatible = "arm,pl081", "arm,primecell";
+ // The magic B105F00D info is missing
+ arm,primecell-periphid = <0x00041081>;
+ reg = <0x11000 0x1000>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+ memcpy-burst-size = <256>;
+ memcpy-bus-width = <32>;
+ clocks = <&periph_clk>;
+ clock-names = "apb_pclk";
+ #dma-cells = <2>;
+ };
+
uart0: serial at 12000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x12000 0x1000>;
@@ -151,5 +269,14 @@ uart0: serial at 12000 {
clock-names = "uartclk", "apb_pclk";
status = "disabled";
};
+
+ uart1: serial at 13000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x13000 0x1000>;
+ interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&uart_clk>, <&uart_clk>;
+ clock-names = "uartclk", "apb_pclk";
+ status = "disabled";
+ };
};
};
--
2.48.1
More information about the linux-arm-kernel
mailing list