Adds support for the Blaize CB2 development board based on
BLZP1600 SoC. This consists of a Carrier-Board-2 and a SoM.
The blaize-blzp1600.dtsi is the common part for the SoC,
blaize-blzp1600-som.dtsi is the common part for the SoM and
blaize-blzp1600-cb2.dts is the board specific file.
Checkpatch: ignore
Resolves: PESW-2604
Co-developed-by: James Cowgill <james.cowgill@blaize.com>
Signed-off-by: James Cowgill <james.cowgill@blaize.com>
Co-developed-by: Matt Redfearn <matt.redfearn@blaize.com>
Signed-off-by: Matt Redfearn <matt.redfearn@blaize.com>
Co-developed-by: Neil Jones <neil.jones@blaize.com>
Signed-off-by: Neil Jones <neil.jones@blaize.com>
Signed-off-by: Nikolaos Pasaloukos <nikolaos.pasaloukos@blaize.com>
---
arch/arm64/boot/dts/Makefile | 1 +
arch/arm64/boot/dts/blaize/Makefile | 2 +
.../boot/dts/blaize/blaize-blzp1600-cb2.dts | 84 +++++++
.../boot/dts/blaize/blaize-blzp1600-som.dtsi | 23 ++
.../boot/dts/blaize/blaize-blzp1600.dtsi | 205 ++++++++++++++++++
5 files changed, 315 insertions(+)
create mode 100644 arch/arm64/boot/dts/blaize/Makefile
create mode 100644 arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts
create mode 100644 arch/arm64/boot/dts/blaize/blaize-blzp1600-som.dtsi
create mode 100644 arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi
diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index 30dd6347a929..601b6381ea0c 100644
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile
@@ -9,6 +9,7 @@ subdir-y += apm
subdir-y += apple
subdir-y += arm
subdir-y += bitmain
+subdir-y += blaize
subdir-y += broadcom
subdir-y += cavium
subdir-y += exynos
diff --git a/arch/arm64/boot/dts/blaize/Makefile b/arch/arm64/boot/dts/blaize/Makefile
new file mode 100644
index 000000000000..9118d7fb600f
--- /dev/null
+++ b/arch/arm64/boot/dts/blaize/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0+
+dtb-$(CONFIG_ARCH_BLAIZE_BLZP1600) += blaize-blzp1600-cb2.dtb
diff --git a/arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts b/arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts
new file mode 100644
index 000000000000..5416f7e84ac0
--- /dev/null
+++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2024 Blaize, Inc. All rights reserved.
+ */
+
+/dts-v1/;
+
+#include "blaize-blzp1600-som.dtsi"
+#include <dt-bindings/net/ti-dp83867.h>
+
+/ {
+ model = "Blaize BLZP1600 SoM1600P CB2 Development Board";
+
+ compatible = "blaize,blzp1600-cb2", "blaize,blzp1600";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200";
+ };
+};
+
+&i2c0 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&i2c1 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&i2c3 {
+ clock-frequency = <100000>;
+ status = "okay";
+
+ gpio_expander: gpio@74 {
+ compatible = "ti,tca9539";
+ reg = <0x74>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "RSP_PIN_7", /* GPIO_0 */
+ "RSP_PIN_11", /* GPIO_1 */
+ "RSP_PIN_13", /* GPIO_2 */
+ "RSP_PIN_15", /* GPIO_3 */
+ "RSP_PIN_27", /* GPIO_4 */
+ "RSP_PIN_29", /* GPIO_5 */
+ "RSP_PIN_31", /* GPIO_6 */
+ "RSP_PIN_33", /* GPIO_7 */
+ "RSP_PIN_37", /* GPIO_8 */
+ "RSP_PIN_16", /* GPIO_9 */
+ "RSP_PIN_18", /* GPIO_10 */
+ "RSP_PIN_22", /* GPIO_11 */
+ "RSP_PIN_28", /* GPIO_12 */
+ "RSP_PIN_32", /* GPIO_13 */
+ "RSP_PIN_36", /* GPIO_14 */
+ "TP31"; /* GPIO_15 */
+ };
+
+ gpio_expander_m2: gpio@75 {
+ compatible = "ti,tca9539";
+ reg = <0x75>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "M2_W_DIS1_N", /* GPIO_0 */
+ "M2_W_DIS2_N", /* GPIO_1 */
+ "M2_UART_WAKE_N", /* GPIO_2 */
+ "M2_COEX3", /* GPIO_3 */
+ "M2_COEX_RXD", /* GPIO_4 */
+ "M2_COEX_TXD", /* GPIO_5 */
+ "M2_VENDOR_PIN40", /* GPIO_6 */
+ "M2_VENDOR_PIN42", /* GPIO_7 */
+ "M2_VENDOR_PIN38", /* GPIO_8 */
+ "M2_SDIO_RST_N", /* GPIO_9 */
+ "M2_SDIO_WAKE_N", /* GPIO_10 */
+ "M2_PETN1", /* GPIO_11 */
+ "M2_PERP1", /* GPIO_12 */
+ "M2_PERN1", /* GPIO_13 */
+ "UIM_SWP", /* GPIO_14 */
+ "UART1_TO_RSP"; /* GPIO_15 */
+ };
+};
diff --git a/arch/arm64/boot/dts/blaize/blaize-blzp1600-som.dtsi b/arch/arm64/boot/dts/blaize/blaize-blzp1600-som.dtsi
new file mode 100644
index 000000000000..d54707c17163
--- /dev/null
+++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600-som.dtsi
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2024 Blaize, Inc. All rights reserved.
+ */
+
+#include "blaize-blzp1600.dtsi"
+
+/ {
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x00000000 0xffffffff>;
+ };
+};
+
+/* i2c4 bus is available only on the SoM, not on the board */
+&i2c4 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&uart0 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi b/arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi
new file mode 100644
index 000000000000..6d524d0dba62
--- /dev/null
+++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi
@@ -0,0 +1,205 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2024 Blaize, Inc. All rights reserved.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ compatible = "arm,cortex-a53";
+ reg = <0x0 0x0>;
+ device_type = "cpu";
+ enable-method = "psci";
+ next-level-cache = <&l2>;
+ };
+
+ cpu1: cpu@1 {
+ compatible = "arm,cortex-a53";
+ reg = <0x0 0x1>;
+ device_type = "cpu";
+ enable-method = "psci";
+ next-level-cache = <&l2>;
+ };
+
+ l2: l2-cache0 {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-unified;
+ };
+ };
+
+ firmware {
+ scmi {
+ compatible = "arm,scmi-smc";
+ arm,smc-id = <0x82002000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ shmem = <&scmi0_shm>;
+
+ scmi_clk: protocol@14 {
+ reg = <0x14>;
+ #clock-cells = <1>;
+ };
+
+ scmi_rst: protocol@16 {
+ reg = <0x16>;
+ #reset-cells = <1>;
+ };
+ };
+ };
+
+ pmu {
+ compatible = "arm,cortex-a53-pmu";
+ interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu0>, <&cpu1>;
+ };
+
+ psci {
+ compatible = "arm,psci-1.0", "arm,psci-0.2";
+ method = "smc";
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+
+ /* SCMI reserved buffer space on DDR space */
+ scmi0_shm: scmi-shmem@800 {
+ compatible = "arm,scmi-shmem";
+ reg = <0x0 0x800 0x80>;
+ };
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = /* Physical Secure PPI */
+ <GIC_PPI 13 (GIC_CPU_MASK_RAW(0x3) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ /* Physical Non-Secure PPI */
+ <GIC_PPI 14 (GIC_CPU_MASK_RAW(0x3) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ /* Hypervisor PPI */
+ <GIC_PPI 10 (GIC_CPU_MASK_RAW(0x3) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ /* Virtual PPI */
+ <GIC_PPI 11 (GIC_CPU_MASK_RAW(0x3) |
+ IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ soc@200000000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x2 0x0 0x850000>;
+
+ gic: interrupt-controller@410000 {
+ compatible = "arm,gic-400";
+ reg = <0x410000 0x20000>,
+ <0x420000 0x20000>,
+ <0x440000 0x20000>,
+ <0x460000 0x20000>;
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_RAW(0x3) |
+ IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ uart0: serial@4d0000 {
+ compatible = "ns16550a";
+ reg = <0x4d0000 0x1000>;
+ clocks = <&scmi_clk 59>;
+ resets = <&scmi_rst 59>;
+ reg-shift = <2>;
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart1: serial@4e0000 {
+ compatible = "ns16550a";
+ reg = <0x4e0000 0x1000>;
+ clocks = <&scmi_clk 60>;
+ resets = <&scmi_rst 60>;
+ reg-shift = <2>;
+ interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ i2c0: i2c@4f0000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x4f0000 0x1000>;
+ interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&scmi_clk 54>;
+ resets = <&scmi_rst 54>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@500000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x500000 0x1000>;
+ interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&scmi_clk 55>;
+ resets = <&scmi_rst 55>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@510000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x510000 0x1000>;
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&scmi_clk 56>;
+ resets = <&scmi_rst 56>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c3: i2c@520000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x520000 0x1000>;
+ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&scmi_clk 57>;
+ resets = <&scmi_rst 57>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c4: i2c@530000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x530000 0x1000>;
+ interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&scmi_clk 58>;
+ resets = <&scmi_rst 58>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ arm_cc712: crypto@550000 {
+ compatible = "arm,cryptocell-712-ree";
+ reg = <0x550000 0x1000>;
+ interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&scmi_clk 7>;
+ };
+ };
+};
--
2.43.0On Fri, Nov 8, 2024, at 11:31, Niko Pasaloukos wrote:
> Adds support for the Blaize CB2 development board based on
> BLZP1600 SoC. This consists of a Carrier-Board-2 and a SoM.
>
> The blaize-blzp1600.dtsi is the common part for the SoC,
> blaize-blzp1600-som.dtsi is the common part for the SoM and
> blaize-blzp1600-cb2.dts is the board specific file.
The split of files seems fine, but a little more information
about what this chip is used for would help, so that developers
looking at the git history later can have an idea.
> Checkpatch: ignore
> Resolves: PESW-2604
I don't understand these, can you turn these into full
english sentences? What checkpatch errors do you see and
why should I ignore them? What is PESW-2604 and how does
it relate to PLZP1600?
> +#include "blaize-blzp1600-som.dtsi"
> +#include <dt-bindings/net/ti-dp83867.h>
I don't see any references to ti-dp83867.h here, maybe leave
the #include to a later patch that actually starts using it?
> +#include "blaize-blzp1600.dtsi"
> +
> +/ {
> + memory@0 {
> + device_type = "memory";
> + reg = <0x0 0x00000000 0xffffffff>;
> + };
> +};
Is this an off-by-one error or do you intentionally
leave out the last bit of the 4GB address space?
If the last byte is actually addressable, please just
use #size-cells=<2> and make it the full 0x100000000.
Arnd
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