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.
Co-developed-by: James Cowgill <[email protected]>
Signed-off-by: James Cowgill <[email protected]>
Co-developed-by: Matt Redfearn <[email protected]>
Signed-off-by: Matt Redfearn <[email protected]>
Co-developed-by: Neil Jones <[email protected]>
Signed-off-by: Neil Jones <[email protected]>
Signed-off-by: Nikolaos Pasaloukos <[email protected]>
---
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 | 209 ++++++++++++++++++
5 files changed, 319 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..595e7a350300
--- /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..0bdec7e81380
--- /dev/null
+++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023 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..efac0d6b3d60
--- /dev/null
+++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600-som.dtsi
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023 Blaize, Inc. All rights reserved.
+ */
+
+#include "blaize-blzp1600.dtsi"
+
+/ {
+ memory@1000 {
+ device_type = "memory";
+ reg = <0x0 0x00001000 0xfffff000>;
+ };
+};
+
+/* 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..26d8943d60ab
--- /dev/null
+++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi
@@ -0,0 +1,209 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023 Blaize, Inc. All rights reserved.
+ */
+
+#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";
+ device_type = "cpu";
+ enable-method = "psci";
+ reg = <0x0 0x0>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu1: cpu@1 {
+ compatible = "arm,cortex-a53";
+ device_type = "cpu";
+ enable-method = "psci";
+ reg = <0x0 0x1>;
+ next-level-cache = <&l2>;
+ };
+
+ l2: l2-cache0 {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-unified;
+ };
+ };
+
+ 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)>;
+ };
+
+ psci {
+ compatible = "arm,psci-1.0", "arm,psci-0.2";
+ method = "smc";
+ };
+
+ 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>;
+ };
+
+ sram@0 {
+ /*
+ * On BLZP1600 there is no general purpose (non-secure) SRAM.
+ * A small DDR memory space has been reserved for general use.
+ */
+ compatible = "mmio-sram";
+ reg = <0x0 0x00000000 0x00001000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x0 0x00000000 0x1000>;
+
+ /* SCMI reserved buffer space on DDR space */
+ scmi0_shm: scmi-sram@800 {
+ compatible = "arm,scmi-shmem";
+ reg = <0x800 0x80>;
+ };
+ };
+
+ 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>;
+ };
+ };
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+
+ gic: interrupt-controller@200410000 {
+ compatible = "arm,gic-400";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0x2 0x00410000 0x20000>,
+ <0x2 0x00420000 0x20000>,
+ <0x2 0x00440000 0x20000>,
+ <0x2 0x00460000 0x20000>;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_RAW(0x3) |
+ IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ uart0: serial@2004d0000 {
+ compatible = "ns16550a";
+ reg = <0x2 0x004d0000 0x1000>;
+ clocks = <&scmi_clk 59>;
+ resets = <&scmi_rst 59>;
+ reg-shift = <2>;
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart1: serial@2004e0000 {
+ compatible = "ns16550a";
+ reg = <0x2 0x004e0000 0x1000>;
+ clocks = <&scmi_clk 60>;
+ resets = <&scmi_rst 60>;
+ reg-shift = <2>;
+ interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ i2c0: i2c@2004f0000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x2 0x004f0000 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@200500000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x2 0x00500000 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@200510000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x2 0x00510000 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@200520000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x2 0x00520000 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@200530000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x2 0x00530000 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@200550000 {
+ compatible = "arm,cryptocell-712-ree";
+ reg = <0x2 0x00550000 0x1000>;
+ interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&scmi_clk 7>;
+ };
+ };
+};
--
2.34.1
On 25/04/2024 11:15, 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.
Subject: missing dts prefix.
..
> +
> +/ {
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <1>;
> +
> + cpus {
> + #address-cells = <2>;
> + #size-cells = <0>;
> +
> + cpu0: cpu@0 {
> + compatible = "arm,cortex-a53";
> + device_type = "cpu";
> + enable-method = "psci";
> + reg = <0x0 0x0>;
> + next-level-cache = <&l2>;
> + };
> +
> + cpu1: cpu@1 {
> + compatible = "arm,cortex-a53";
> + device_type = "cpu";
> + enable-method = "psci";
> + reg = <0x0 0x1>;
> + next-level-cache = <&l2>;
> + };
> +
> + l2: l2-cache0 {
> + compatible = "cache";
> + cache-level = <2>;
> + cache-unified;
> + };
> + };
> +
> + 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)>;
> + };
> +
> + psci {
> + compatible = "arm,psci-1.0", "arm,psci-0.2";
> + method = "smc";
> + };
> +
> + pmu {
Nodes in top-level look randomly ordered. Any reason why not using DTS
coding style in this regard?
> + compatible = "arm,cortex-a53-pmu";
> + interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-affinity = <&cpu0>, <&cpu1>;
> + };
> +
> + sram@0 {
> + /*
> + * On BLZP1600 there is no general purpose (non-secure) SRAM.
> + * A small DDR memory space has been reserved for general use.
> + */
> + compatible = "mmio-sram";
> + reg = <0x0 0x00000000 0x00001000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0x0 0x00000000 0x1000>;
ranges follow reg
> +
> + /* SCMI reserved buffer space on DDR space */
> + scmi0_shm: scmi-sram@800 {
> + compatible = "arm,scmi-shmem";
> + reg = <0x800 0x80>;
> + };
> + };
> +
> + 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>;
> + };
> + };
> + };
> +
> + soc {
This does not cause dtbs_check W=1 warnings? Surprising a bit... This
should cause big fat warning, so I have doubts patchset was tested.
Best regards,
Krzysztof
On 25/04/2024 10:21, Krzysztof Kozlowski wrote:
> On 25/04/2024 11:15, 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.
>
> Subject: missing dts prefix.
>
>
> ...
>
>> +
>> +/ {
>> + interrupt-parent = <&gic>;
>> + #address-cells = <2>;
>> + #size-cells = <1>;
>> +
>> + cpus {
>> + #address-cells = <2>;
>> + #size-cells = <0>;
>> +
>> + cpu0: cpu@0 {
>> + compatible = "arm,cortex-a53";
>> + device_type = "cpu";
>> + enable-method = "psci";
>> + reg = <0x0 0x0>;
>> + next-level-cache = <&l2>;
>> + };
>> +
>> + cpu1: cpu@1 {
>> + compatible = "arm,cortex-a53";
>> + device_type = "cpu";
>> + enable-method = "psci";
>> + reg = <0x0 0x1>;
>> + next-level-cache = <&l2>;
>> + };
>> +
>> + l2: l2-cache0 {
>> + compatible = "cache";
>> + cache-level = <2>;
>> + cache-unified;
>> + };
>> + };
>> +
>> + 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)>;
>> + };
>> +
>> + psci {
>> + compatible = "arm,psci-1.0", "arm,psci-0.2";
>> + method = "smc";
>> + };
>> +
>> + pmu {
>
> Nodes in top-level look randomly ordered. Any reason why not using DTS
> coding style in this regard?
>
>> + compatible = "arm,cortex-a53-pmu";
>> + interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
>> + <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
>> + interrupt-affinity = <&cpu0>, <&cpu1>;
>> + };
>> +
>> + sram@0 {
>> + /*
>> + * On BLZP1600 there is no general purpose (non-secure) SRAM.
>> + * A small DDR memory space has been reserved for general use.
>> + */
>> + compatible = "mmio-sram";
>> + reg = <0x0 0x00000000 0x00001000>;
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges = <0 0x0 0x00000000 0x1000>;
>
> ranges follow reg
>
>> +
>> + /* SCMI reserved buffer space on DDR space */
>> + scmi0_shm: scmi-sram@800 {
>> + compatible = "arm,scmi-shmem";
>> + reg = <0x800 0x80>;
>> + };
>> + };
>> +
>> + 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>;
>> + };
>> + };
>> + };
>> +
>> + soc {
>
> This does not cause dtbs_check W=1 warnings? Surprising a bit... This
> should cause big fat warning, so I have doubts patchset was tested.
>
>
> Best regards,
> Krzysztof
>
No it doesn't cause any warnings. I did:
make arch=arm64 dt_binding_check
make arch=arm64 dtbs_check W=1
I don't get any warnings. Could you please let me know what kind of
warning I should get? Am I doing something wrong and I don't get
the warning?
Kind regards,
Niko
On 25/04/2024 12:41, Nikolaos Pasaloukos wrote:
>>> +
>>> + soc {
>>
>> This does not cause dtbs_check W=1 warnings? Surprising a bit... This
>> should cause big fat warning, so I have doubts patchset was tested.
>>
>>
>> Best regards,
>> Krzysztof
>>
>
> No it doesn't cause any warnings. I did:
> make arch=arm64 dt_binding_check
> make arch=arm64 dtbs_check W=1
> I don't get any warnings. Could you please let me know what kind of
> warning I should get? Am I doing something wrong and I don't get
> the warning?
I was expecting one for missing soc unit address, but you are right -
your ranges are empty, so "soc" is ok. I keep forgetting that
distinction. Looks fine then.
Best regards,
Krzysztof
On Thu, Apr 25, 2024 at 4:15 AM Niko Pasaloukos
<[email protected]> 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.
>
> Co-developed-by: James Cowgill <[email protected]>
> Signed-off-by: James Cowgill <[email protected]>
> Co-developed-by: Matt Redfearn <[email protected]>
> Signed-off-by: Matt Redfearn <[email protected]>
> Co-developed-by: Neil Jones <[email protected]>
> Signed-off-by: Neil Jones <[email protected]>
> Signed-off-by: Nikolaos Pasaloukos <[email protected]>
> ---
> 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 | 209 ++++++++++++++++++
> 5 files changed, 319 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..595e7a350300
> --- /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..0bdec7e81380
> --- /dev/null
> +++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts
> @@ -0,0 +1,84 @@
> +// SPDX-License-Identifier: GPL-2.0
Preferred license is GPL-2.0 plus a permissive license.
> +/*
> + * Copyright (c) 2023 Blaize, Inc. All rights reserved.
2024 now.
> + */
> +
> +/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..efac0d6b3d60
> --- /dev/null
> +++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600-som.dtsi
> @@ -0,0 +1,23 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2023 Blaize, Inc. All rights reserved.
> + */
> +
> +#include "blaize-blzp1600.dtsi"
> +
> +/ {
> + memory@1000 {
> + device_type = "memory";
> + reg = <0x0 0x00001000 0xfffff000>;
Memory starting at 4K. That's odd. I suspect you have something
reserved there and memory really starts at 0? If so, it is preferred
that you describe memory including that 4KB and then reserve it in
/memreserve/ section or /reserved-memory node.
> + };
> +};
> +
> +/* 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..26d8943d60ab
> --- /dev/null
> +++ b/arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi
> @@ -0,0 +1,209 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2023 Blaize, Inc. All rights reserved.
> + */
> +
> +#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";
> + device_type = "cpu";
> + enable-method = "psci";
> + reg = <0x0 0x0>;
> + next-level-cache = <&l2>;
> + };
> +
> + cpu1: cpu@1 {
> + compatible = "arm,cortex-a53";
> + device_type = "cpu";
> + enable-method = "psci";
> + reg = <0x0 0x1>;
> + next-level-cache = <&l2>;
> + };
> +
> + l2: l2-cache0 {
> + compatible = "cache";
> + cache-level = <2>;
> + cache-unified;
> + };
> + };
> +
> + 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)>;
> + };
> +
> + psci {
> + compatible = "arm,psci-1.0", "arm,psci-0.2";
> + method = "smc";
> + };
> +
> + 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>;
> + };
> +
> + sram@0 {
> + /*
> + * On BLZP1600 there is no general purpose (non-secure) SRAM.
> + * A small DDR memory space has been reserved for general use.
> + */
> + compatible = "mmio-sram";
> + reg = <0x0 0x00000000 0x00001000>;
Ah, there it is. This isn't mmio-sram.
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0x0 0x00000000 0x1000>;
> +
> + /* SCMI reserved buffer space on DDR space */
> + scmi0_shm: scmi-sram@800 {
> + compatible = "arm,scmi-shmem";
> + reg = <0x800 0x80>;
> + };
Just put this node into /reserved-memory.
> + };
> +
> + 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>;
> + };
> + };
> + };
> +
> + soc {
> + compatible = "simple-bus";
> + #address-cells = <2>;
> + #size-cells = <1>;
> + ranges;
It is preferred if you limit this to actual ranges needed. Looks like
nothing below 0x200000000, but I imagine this is incomplete.
Rob