[RFC 1/4] arm64: dts: msm8992 SoC and LG Bullhead (Nexus 5X) support
Andy Gross
andy.gross at linaro.org
Fri Jul 8 10:41:25 PDT 2016
On Thu, Jul 07, 2016 at 05:41:04PM -0700, Jeremy McNicoll wrote:
> Initial device tree support for Qualcomm MSM8992 SoC and
> LG Bullhead / Google Nexus 5X support.
>
> Signed-off-by: Jeremy McNicoll <jeremymc at redhat.com>
> ---
> arch/arm64/Kconfig.platforms | 12 +
> arch/arm64/boot/dts/Makefile | 1 +
> arch/arm64/boot/dts/lge/Makefile | 5 +
> .../boot/dts/lge/msm8992-bullhead-rev-101.dts | 41 +++
> arch/arm64/boot/dts/qcom/msm8992-pins.dtsi | 38 +++
> arch/arm64/boot/dts/qcom/msm8992.dtsi | 221 ++++++++++++
> arch/arm64/configs/bullhead_defconfig | 377 +++++++++++++++++++++
> arch/arm64/configs/msm8992_defconfig | 5 +
> 8 files changed, 700 insertions(+)
> create mode 100644 arch/arm64/boot/dts/lge/Makefile
> create mode 100644 arch/arm64/boot/dts/lge/msm8992-bullhead-rev-101.dts
> create mode 100644 arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
> create mode 100644 arch/arm64/boot/dts/qcom/msm8992.dtsi
> create mode 100644 arch/arm64/configs/bullhead_defconfig
> create mode 100644 arch/arm64/configs/msm8992_defconfig
>
> diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
> index 7ef1d05..515e669 100644
> --- a/arch/arm64/Kconfig.platforms
> +++ b/arch/arm64/Kconfig.platforms
> @@ -86,6 +86,18 @@ config ARCH_QCOM
> help
> This enables support for the ARMv8 based Qualcomm chipsets.
>
> +config ARCH_MSM8992
> + bool "Qualcomm MSM8992"
> + depends on ARCH_QCOM
> + help
> + This enables support for the Qualcomm MSM8992 SoC.
> +
> +config MACH_LGE
> + bool "LGE BullHead (MSM8992)"
> + depends on ARCH_QCOM
> + help
> + This enables support for the LGE Nexus 5X - BullHead MSM8992.
We don't add config options for End users. Only for Soc Companies or people
actually producing the silicon.
> +
> config ARCH_ROCKCHIP
> bool "Rockchip Platforms"
> select ARCH_HAS_RESET_CONTROLLER
> diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
> index 6e199c9..bde90fb 100644
> --- a/arch/arm64/boot/dts/Makefile
> +++ b/arch/arm64/boot/dts/Makefile
> @@ -13,6 +13,7 @@ dts-dirs += marvell
> dts-dirs += mediatek
> dts-dirs += nvidia
> dts-dirs += qcom
> +dts-dirs += lge
No, please add the files to the qcom directory.
> dts-dirs += renesas
> dts-dirs += rockchip
> dts-dirs += socionext
> diff --git a/arch/arm64/boot/dts/lge/Makefile b/arch/arm64/boot/dts/lge/Makefile
> new file mode 100644
> index 0000000..f4e7860
> --- /dev/null
> +++ b/arch/arm64/boot/dts/lge/Makefile
> @@ -0,0 +1,5 @@
> +dtb-$(CONFIG_MACH_LGE) += msm8992-bullhead-rev-101.dtb
> +
> +always := $(dtb-y)
> +subdir-y := $(dts-dirs)
> +clean-files := *.dtb
> diff --git a/arch/arm64/boot/dts/lge/msm8992-bullhead-rev-101.dts b/arch/arm64/boot/dts/lge/msm8992-bullhead-rev-101.dts
> new file mode 100644
> index 0000000..860cded
> --- /dev/null
> +++ b/arch/arm64/boot/dts/lge/msm8992-bullhead-rev-101.dts
> @@ -0,0 +1,41 @@
> +/* Copyright (c) 2015, LGE Inc. All rights reserved.
> + * Copyright (c) 2016, The Linux Foundation. All rights reserved.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 and
> + * only version 2 as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + */
> +
> +/dts-v1/;
> +
> +#include "../qcom/msm8992.dtsi"
> +
> +/ {
> + model = "LGE MSM8992 BULLHEAD rev-1.01";
> + compatible = "qcom,msm8992";
> + qcom,board-id = <0xb64 0>;
Please work with sboyd to add the board-id to the dtbTool. We don't put
board-ids in the dts file. We post-process the dtb file and add them then.
> +};
> +
> +/ {
> + aliases {
> + serial0 = &blsp1_uart2;
> + };
> +
> + chosen {
> + stdout-path = "serial0";
> + };
> +
> + soc {
> + serial at f991e000 {
> + status = "okay";
> + pinctrl-names = "default", "sleep";
> + pinctrl-0 = <&blsp1_uart2_default>;
> + pinctrl-1 = <&blsp1_uart2_sleep>;
> + };
> + };
> +};
> diff --git a/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi b/arch/arm64/boot/dts/qcom/msm8992-pins.dtsi
<snip>
> diff --git a/arch/arm64/boot/dts/qcom/msm8992.dtsi b/arch/arm64/boot/dts/qcom/msm8992.dtsi
> new file mode 100644
> index 0000000..fa92a1a
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/msm8992.dtsi
> @@ -0,0 +1,221 @@
> +/* Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 and
> + * only version 2 as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + */
> +
> +/memreserve/ 0x00000000 0x00001000;
Please use reserved-memory{}. And why are they setting aside 4k at the
beginning? Trying to cover up corruption issues?
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/clock/qcom,gcc-msm8994.h>
> +
> +/ {
> + model = "Qualcomm Technologies, Inc. MSM 8992";
> + compatible = "qcom,msm8992";
> + qcom,msm-id = <251 0>, <252 0>;
> + qcom,pmic-id = <0x10009 0x1000A 0x0 0x0>;
See above comment on ids.
> + interrupt-parent = <&intc>;
> +
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + chosen { };
> +
<snip>
> +#include "msm8992-pins.dtsi"
> diff --git a/arch/arm64/configs/bullhead_defconfig b/arch/arm64/configs/bullhead_defconfig
Please add whatever config options you have to the default defconfig. we don't
define board specific configs for ARM64 platforms. Or I should say, they won't
be accepted into the kernel.
Also, please separate defconfig changes into separate patches.
<snip>
> diff --git a/arch/arm64/configs/msm8992_defconfig b/arch/arm64/configs/msm8992_defconfig
> new file mode 100644
> index 0000000..f673a27
> --- /dev/null
> +++ b/arch/arm64/configs/msm8992_defconfig
See above comment.
> @@ -0,0 +1,5 @@
> +CONFIG_NO_HZ=y
> +CONFIG_HIGH_RES_TIMERS=y
> +CONFIG_SCHED_HMP=y
> +CONFIG_NAMESPACES=y
> +# CONFIG_CORESIGHT is not set
> --
> 2.6.1
>
> --
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