Messages in this thread | | | Date | Sat, 3 Jun 2023 13:21:48 +0530 | Subject | Re: [PATCH 2/2] arm64: dts: qcom: ipq9574: add support for RDP453 variant | From | Devi Priya <> |
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On 5/27/2023 2:15 AM, Konrad Dybcio wrote: > > > On 26.05.2023 17:31, Devi Priya wrote: >> Add the initial device tree support for the Reference Design Platform (RDP) >> 453 based on IPQ9574 family of SoCs. This patch adds support for Console >> UART, SPI NOR and SMPA1 regulator node. >> >> Signed-off-by: Devi Priya <quic_devipriy@quicinc.com> >> --- > Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> > > > BTW what's the naming scheme for IPQ? > > IPQabcd > > 'a' - tier > 'b' - 0/5 - network generation dependent? > 'cd' - model > > ? > Hi konrad,
Below is the naming scheme, IPQabcd a-> product category(5-Immersive home, 6-Home, 9-Networking Pro) b-> generation (5-Alder) c-> SKU customization (0-base SKU) d-> #chains
Thanks, Devi Priya > Konrad >> arch/arm64/boot/dts/qcom/Makefile | 1 + >> arch/arm64/boot/dts/qcom/ipq9574-rdp453.dts | 80 +++++++++++++++++++++ >> 2 files changed, 81 insertions(+) >> create mode 100644 arch/arm64/boot/dts/qcom/ipq9574-rdp453.dts >> >> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile >> index 834e790bec90..56ec3d84ad43 100644 >> --- a/arch/arm64/boot/dts/qcom/Makefile >> +++ b/arch/arm64/boot/dts/qcom/Makefile >> @@ -12,6 +12,7 @@ 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-$(CONFIG_ARCH_QCOM) += ipq9574-rdp453.dtb >> dtb-$(CONFIG_ARCH_QCOM) += ipq9574-rdp454.dtb >> dtb-$(CONFIG_ARCH_QCOM) += msm8916-acer-a1-724.dtb >> dtb-$(CONFIG_ARCH_QCOM) += msm8916-alcatel-idol347.dtb >> diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp453.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp453.dts >> new file mode 100644 >> index 000000000000..f01de6628c3b >> --- /dev/null >> +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp453.dts >> @@ -0,0 +1,80 @@ >> +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) >> +/* >> + * IPQ9574 RDP453 board device tree source >> + * >> + * Copyright (c) 2020-2021 The Linux Foundation. All rights reserved. >> + * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. >> + */ >> + >> +/dts-v1/; >> + >> +#include "ipq9574.dtsi" >> + >> +/ { >> + model = "Qualcomm Technologies, Inc. IPQ9574/AP-AL02-C8"; >> + compatible = "qcom,ipq9574-ap-al02-c8", "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>; >> +};
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