2023-05-16 14:03:20

by Devi Priya

Subject: [PATCH 2/2] arm64: dts: qcom: ipq9574: add support for RDP449 variant

Add the initial device tree support for the Reference Design Platform (RDP)
449 based on IPQ9574 family of SoCs. This patch adds support for Console
UART, SPI NOR and SMPA1 regulator node.

Signed-off-by: Devi Priya <[email protected]>
---
arch/arm64/boot/dts/qcom/Makefile | 1 +
arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts | 80 +++++++++++++++++++++
2 files changed, 81 insertions(+)
create mode 100644 arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 29c862035861..9851e2681edf 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -11,6 +11,7 @@ dtb-$(CONFIG_ARCH_QCOM) += ipq8074-hk10-c1.dtb
dtb-$(CONFIG_ARCH_QCOM) += ipq8074-hk10-c2.dtb
dtb-$(CONFIG_ARCH_QCOM) += ipq9574-rdp418.dtb
dtb-$(CONFIG_ARCH_QCOM) += ipq9574-rdp433.dtb
+dtb-$(CONFIG_ARCH_QCOM) += ipq9574-rdp449.dtb
dtb-$(CONFIG_ARCH_QCOM) += msm8916-acer-a1-724.dtb
dtb-$(CONFIG_ARCH_QCOM) += msm8916-alcatel-idol347.dtb
dtb-$(CONFIG_ARCH_QCOM) += msm8916-asus-z00l.dtb
diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts
new file mode 100644
index 000000000000..c8fa54e1a62c
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * IPQ9574 RDP449 board device tree source
+ *
+ * Copyright (c) 2020-2021 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+/dts-v1/;
+
+#include "ipq9574.dtsi"
+
+/ {
+ model = "Qualcomm Technologies, Inc. IPQ9574/AP-AL02-C6";
+ compatible = "qcom,ipq9574-ap-al02-c6", "qcom,ipq9574";
+
+ aliases {
+ serial0 = &blsp1_uart2;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+};
+
+&blsp1_spi0 {
+ pinctrl-0 = <&spi_0_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ flash@0 {
+ compatible = "micron,n25q128a11", "jedec,spi-nor";
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ spi-max-frequency = <50000000>;
+ };
+};
+
+&blsp1_uart2 {
+ pinctrl-0 = <&uart2_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&rpm_requests {
+ regulators {
+ compatible = "qcom,rpm-mp5496-regulators";
+
+ ipq9574_s1: s1 {
+ /*
+ * During kernel bootup, the SoC runs at 800MHz with 875mV set by the bootloaders.
+ * During regulator registration, kernel not knowing the initial voltage,
+ * considers it as zero and brings up the regulators with minimum supported voltage.
+ * Update the regulator-min-microvolt with SVS voltage of 725mV so that
+ * the regulators are brought up with 725mV which is sufficient for all the
+ * corner parts to operate at 800MHz
+ */
+ regulator-min-microvolt = <725000>;
+ regulator-max-microvolt = <1075000>;
+ };
+ };
+};
+
+&sleep_clk {
+ clock-frequency = <32000>;
+};
+
+&tlmm {
+ spi_0_pins: spi-0-state {
+ pins = "gpio11", "gpio12", "gpio13", "gpio14";
+ function = "blsp0_spi";
+ drive-strength = <8>;
+ bias-disable;
+ };
+};
+
+&xo_board_clk {
+ clock-frequency = <24000000>;
+};
--
2.17.1

2023-05-16 16:31:47

by Krzysztof Kozlowski

Subject: Re: [PATCH 2/2] arm64: dts: qcom: ipq9574: add support for RDP449 variant

On 16/05/2023 15:50, Devi Priya wrote:
> Add the initial device tree support for the Reference Design Platform (RDP)
> 449 based on IPQ9574 family of SoCs. This patch adds support for Console
> UART, SPI NOR and SMPA1 regulator node.
>
> Signed-off-by: Devi Priya <[email protected]>

Reviewed-by: Krzysztof Kozlowski <[email protected]>

Best regards,
Krzysztof