[PATCH v4 4/4] arm64: dts: broadcom: Add support for BCM2712
Andrea della Porta
andrea.porta at suse.com
Tue May 28 06:32:41 PDT 2024
The BCM2712 SoC family can be found on Raspberry Pi 5.
Add minimal SoC and board (Rpi5 specific) dts file to be able to
boot from SD card and use console on debug UART.
Signed-off-by: Andrea della Porta <andrea.porta at suse.com>
---
arch/arm64/boot/dts/broadcom/Makefile | 1 +
.../boot/dts/broadcom/bcm2712-rpi-5-b.dts | 64 ++++
arch/arm64/boot/dts/broadcom/bcm2712.dtsi | 292 ++++++++++++++++++
3 files changed, 357 insertions(+)
create mode 100644 arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
create mode 100644 arch/arm64/boot/dts/broadcom/bcm2712.dtsi
diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
index 8b4591ddd27c..92565e9781ad 100644
--- a/arch/arm64/boot/dts/broadcom/Makefile
+++ b/arch/arm64/boot/dts/broadcom/Makefile
@@ -6,6 +6,7 @@ DTC_FLAGS := -@
dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \
bcm2711-rpi-4-b.dtb \
bcm2711-rpi-cm4-io.dtb \
+ bcm2712-rpi-5-b.dtb \
bcm2837-rpi-3-a-plus.dtb \
bcm2837-rpi-3-b.dtb \
bcm2837-rpi-3-b-plus.dtb \
diff --git a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
new file mode 100644
index 000000000000..2bdbb6780242
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include "bcm2712.dtsi"
+
+/ {
+ compatible = "raspberrypi,5-model-b", "brcm,bcm2712";
+ model = "Raspberry Pi 5";
+
+ aliases {
+ serial10 = &uart10;
+ };
+
+ chosen: chosen {
+ stdout-path = "serial10:115200n8";
+ };
+
+ /* Will be filled by the bootloader */
+ memory at 0 {
+ device_type = "memory";
+ reg = <0 0 0 0x28000000>;
+ };
+
+ sd_io_1v8_reg: sd-io-1v8-reg {
+ compatible = "regulator-gpio";
+ regulator-name = "vdd-sd-io";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-settling-time-us = <5000>;
+ gpios = <&gio_aon 3 GPIO_ACTIVE_HIGH>;
+ states = <1800000 1>,
+ <3300000 0>;
+ };
+
+ sd_vcc_reg: sd-vcc-reg {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc-sd";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ enable-active-high;
+ gpios = <&gio_aon 4 GPIO_ACTIVE_HIGH>;
+ };
+};
+
+/* The Debug UART, on Rpi5 it's on JST-SH 1.0mm 3-pin connector
+ * labeled "UART", i.e. the interface with the system console.
+ */
+&uart10 {
+ status = "okay";
+};
+
+/* SDIO1 is used to drive the SD card */
+&sdio1 {
+ vqmmc-supply = <&sd_io_1v8_reg>;
+ vmmc-supply = <&sd_vcc_reg>;
+ bus-width = <4>;
+ sd-uhs-sdr50;
+ sd-uhs-ddr50;
+ sd-uhs-sdr104;
+};
diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
new file mode 100644
index 000000000000..71b0fa6c9594
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "brcm,bcm2712";
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ interrupt-parent = <&gicv2>;
+
+ axi: axi at 1000000000 {
+ compatible = "simple-bus";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x10 0x00000000 0x10 0x00000000 0x01 0x00000000>;
+
+ sdio1: mmc at 1000fff000 {
+ compatible = "brcm,bcm2712-sdhci",
+ "brcm,sdhci-brcmstb";
+ reg = <0x10 0x00fff000 0x0 0x260>,
+ <0x10 0x00fff400 0x0 0x200>;
+ reg-names = "host", "cfg";
+ interrupts = <GIC_SPI 273 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk_emmc2>;
+ clock-names = "sw_sdio";
+ mmc-ddr-3_3v;
+ };
+
+ gicv2: interrupt-controller at 107fff9000 {
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ compatible = "arm,gic-400";
+ reg = <0x10 0x7fff9000 0x0 0x1000>,
+ <0x10 0x7fffa000 0x0 0x2000>,
+ <0x10 0x7fffc000 0x0 0x2000>,
+ <0x10 0x7fffe000 0x0 0x2000>;
+ };
+ };
+
+ clocks {
+ /* The oscillator is the root of the clock tree. */
+ clk_osc: clk-osc {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-output-names = "osc";
+ clock-frequency = <54000000>;
+ };
+
+ clk_vpu: clk-vpu {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <750000000>;
+ clock-output-names = "vpu-clock";
+ };
+
+ clk_uart: clk-uart {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <9216000>;
+ clock-output-names = "uart-clock";
+ };
+
+ clk_emmc2: clk-emmc2 {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <200000000>;
+ clock-output-names = "emmc2-clock";
+ };
+ };
+
+ cpus: cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Source for L1 d/i cache-line-size, cache-sets, cache-size
+ * https://developer.arm.com/documentation/100798/0401/L1-memory-system/About-the-L1-memory-system?lang=en
+ * Source for L2 cache-line-size and cache-sets:
+ * https://developer.arm.com/documentation/100798/0401/L2-memory-system/About-the-L2-memory-system?lang=en
+ * and for cache-size:
+ * https://www.raspberrypi.com/documentation/computers/processors.html#bcm2712
+ */
+ cpu0: cpu at 0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a76";
+ reg = <0x000>;
+ enable-method = "psci";
+ d-cache-size = <0x10000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>; // 64KiB(size)/64(line-size)=1024ways/4-way set
+ i-cache-size = <0x10000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>; // 64KiB(size)/64(line-size)=1024ways/4-way set
+ next-level-cache = <&l2_cache_l0>;
+
+ l2_cache_l0: l2-cache-l0 {
+ compatible = "cache";
+ cache-size = <0x80000>;
+ cache-line-size = <128>;
+ cache-sets = <1024>; //512KiB(size)/64(line-size)=8192ways/8-way set
+ cache-level = <2>;
+ cache-unified;
+ next-level-cache = <&l3_cache>;
+ };
+ };
+
+ cpu1: cpu at 1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a76";
+ reg = <0x100>;
+ enable-method = "psci";
+ d-cache-size = <0x10000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>; // 64KiB(size)/64(line-size)=1024ways/4-way set
+ i-cache-size = <0x10000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>; // 64KiB(size)/64(line-size)=1024ways/4-way set
+ next-level-cache = <&l2_cache_l1>;
+
+ l2_cache_l1: l2-cache-l1 {
+ compatible = "cache";
+ cache-size = <0x80000>;
+ cache-line-size = <128>;
+ cache-sets = <1024>; //512KiB(size)/64(line-size)=8192ways/8-way set
+ cache-level = <2>;
+ cache-unified;
+ next-level-cache = <&l3_cache>;
+ };
+ };
+
+ cpu2: cpu at 2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a76";
+ reg = <0x200>;
+ enable-method = "psci";
+ d-cache-size = <0x10000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>; // 64KiB(size)/64(line-size)=1024ways/4-way set
+ i-cache-size = <0x10000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>; // 64KiB(size)/64(line-size)=1024ways/4-way set
+ next-level-cache = <&l2_cache_l2>;
+
+ l2_cache_l2: l2-cache-l2 {
+ compatible = "cache";
+ cache-size = <0x80000>;
+ cache-line-size = <128>;
+ cache-sets = <1024>; //512KiB(size)/64(line-size)=8192ways/8-way set
+ cache-level = <2>;
+ cache-unified;
+ next-level-cache = <&l3_cache>;
+ };
+ };
+
+ cpu3: cpu at 3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a76";
+ reg = <0x300>;
+ enable-method = "psci";
+ d-cache-size = <0x10000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <256>; // 64KiB(size)/64(line-size)=1024ways/4-way set
+ i-cache-size = <0x10000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>; // 64KiB(size)/64(line-size)=1024ways/4-way set
+ next-level-cache = <&l2_cache_l3>;
+
+ l2_cache_l3: l2-cache-l3 {
+ compatible = "cache";
+ cache-size = <0x80000>;
+ cache-line-size = <128>;
+ cache-sets = <1024>; //512KiB(size)/64(line-size)=8192ways/8-way set
+ cache-level = <2>;
+ cache-unified;
+ next-level-cache = <&l3_cache>;
+ };
+ };
+
+ /* Source for cache-line-size and cache-sets:
+ * https://developer.arm.com/documentation/100453/0401/L3-cache?lang=en
+ * Source for cache-size:
+ * https://www.raspberrypi.com/documentation/computers/processors.html#bcm2712
+ */
+ l3_cache: l3-cache {
+ compatible = "cache";
+ cache-size = <0x200000>;
+ cache-line-size = <64>;
+ cache-sets = <2048>; // 2MiB(size)/64(line-size)=32768ways/16-way set
+ cache-level = <3>;
+ cache-unified;
+ };
+ };
+
+ psci {
+ method = "smc";
+ compatible = "arm,psci-1.0", "arm,psci-0.2";
+ };
+
+ rmem: reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ atf at 0 {
+ reg = <0x0 0x0 0x0 0x80000>;
+ no-map;
+ };
+
+ cma: linux,cma {
+ compatible = "shared-dma-pool";
+ size = <0x0 0x4000000>; /* 64MB */
+ reusable;
+ linux,cma-default;
+ alloc-ranges = <0x0 0x00000000 0x0 0x40000000>;
+ };
+ };
+
+ soc: soc at 107c000000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0x7c000000 0x10 0x7c000000 0x04000000>;
+ /* Emulate a contiguous 30-bit address range for DMA */
+ dma-ranges = <0xc0000000 0x00 0x00000000 0x40000000>,
+ <0x7c000000 0x10 0x7c000000 0x04000000>;
+
+ system_timer: timer at 7c003000 {
+ compatible = "brcm,bcm2835-system-timer";
+ reg = <0x7c003000 0x1000>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <1000000>;
+ };
+
+ mailbox: mailbox at 7c013880 {
+ compatible = "brcm,bcm2835-mbox";
+ reg = <0x7c013880 0x40>;
+ interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+ #mbox-cells = <0>;
+ };
+
+ local_intc: local-intc at 7cd00000 {
+ compatible = "brcm,bcm2836-l1-intc";
+ reg = <0x7cd00000 0x100>;
+ };
+
+ uart10: serial at 7d001000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x7d001000 0x200>;
+ interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk_uart>, <&clk_vpu>;
+ clock-names = "uartclk", "apb_pclk";
+ arm,primecell-periphid = <0x00241011>;
+ status = "disabled";
+ };
+
+ interrupt-controller at 7d517000 {
+ compatible = "brcm,bcm7271-l2-intc";
+ reg = <0x7d517000 0x10>;
+ interrupts = <GIC_SPI 247 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ gio_aon: gpio at 7d517c00 {
+ compatible = "brcm,bcm7445-gpio", "brcm,brcmstb-gpio";
+ reg = <0x7d517c00 0x40>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ // Don't use GIO_AON as an interrupt controller because it will
+ // clash with the firmware monitoring the PMIC interrupt via the VPU.
+ brcm,gpio-bank-widths = <17 6>;
+ };
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 12 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>;
+ };
+};
--
2.35.3
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