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Date: Wed, 25 Sep 2013 14:49:10 -0500
From: Kumar Gala <galak@...eaurora.org>
To: Rohit Vaswani <rvaswani@...eaurora.org>
Cc: David Brown <davidb@...eaurora.org>,
Rob Herring <rob.herring@...xeda.com>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Stephen Warren <swarren@...dotorg.org>,
Ian Campbell <ian.campbell@...rix.com>,
Russell King <linux@....linux.org.uk>,
Daniel Walker <dwalker@...o99.com>,
Bryan Huntsman <bryanh@...eaurora.org>,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCHv4 2/3] ARM: msm: Add support for APQ8074 Dragonboard
On Sep 23, 2013, at 10:13 PM, Rohit Vaswani wrote:
> This patch adds basic board support for APQ8074 Dragonboard
> which belongs to the Snapdragon 800 family.
> For now, just support a basic machine with device tree.
>
> Signed-off-by: Rohit Vaswani <rvaswani@...eaurora.org>
> ---
> arch/arm/Kconfig.debug | 9 +++++++
> arch/arm/boot/dts/Makefile | 3 ++-
> arch/arm/boot/dts/qcom-apq8074-dragonboard.dts | 6 +++++
> arch/arm/boot/dts/qcom-msm8974.dtsi | 35 ++++++++++++++++++++++++++
> arch/arm/include/debug/msm.S | 5 ++++
> arch/arm/mach-msm/Kconfig | 13 ++++++++++
> arch/arm/mach-msm/board-dt.c | 9 +++++++
> 7 files changed, 79 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
> create mode 100644 arch/arm/boot/dts/qcom-msm8974.dtsi
>
> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> index e18a6fc..959b2c7 100644
> --- a/arch/arm/Kconfig.debug
> +++ b/arch/arm/Kconfig.debug
> @@ -357,6 +357,15 @@ choice
> Say Y here if you want the debug print routines to direct
> their output to the serial port on MSM 8960 devices.
>
> + config DEBUG_MSM8974_UART
> + bool "Kernel low-level debugging messages via MSM 8974 UART"
> + depends on ARCH_MSM8974
> + select MSM_HAS_DEBUG_UART_HS
> + select DEBUG_MSM_UART
> + help
> + Say Y here if you want the debug print routines to direct
> + their output to the serial port on MSM 8974 devices.
> +
A little surprised you didn't pull this and the ARCH_MSM8974 into its own patch outside of this patch being board support.
> config DEBUG_MVEBU_UART
> bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
> depends on ARCH_MVEBU
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 000cf76..e71a3ec 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -102,7 +102,8 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-cloudbox.dtb \
> kirkwood-openblocks_a6.dtb
> dtb-$(CONFIG_ARCH_MARCO) += marco-evb.dtb
> dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \
> - msm8960-cdp.dtb
> + msm8960-cdp.dtb \
> + qcom-apq8074-dragonboard.dtb
> dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
> armada-370-mirabox.dtb \
> armada-370-netgear-rn102.dtb \
> diff --git a/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
> new file mode 100644
> index 0000000..bb6f3c4
> --- /dev/null
> +++ b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
> @@ -0,0 +1,6 @@
> +/include/ "qcom-msm8974.dtsi"
> +
> +/ {
> + model = "Qualcomm APQ8074 Dragonboard";
> + compatible = "qcom,apq8074-dragonboard", "qcom,apq8074";
> +};
> diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
> new file mode 100644
> index 0000000..f04b643
> --- /dev/null
> +++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
> @@ -0,0 +1,35 @@
> +/dts-v1/;
> +
> +/include/ "skeleton.dtsi"
> +
> +/ {
> + model = "Qualcomm MSM8974";
> + compatible = "qcom,msm8974";
> + interrupt-parent = <&intc>;
> +
> + soc: soc { };
We should have a unit address here:
soc: soc@...BAR {
also, split out the curly braces so any future patches do have to muck with that.
};
> +};
> +
> +&soc {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> + compatible = "simple-bus";
> +
> + intc: interrupt-controller@...00000 {
> + compatible = "qcom,msm-qgic2";
> + interrupt-controller;
> + #interrupt-cells = <3>;
> + reg = <0xf9000000 0x1000>,
> + <0xf9002000 0x1000>;
> + };
> +
> + timer {
> + compatible = "arm,armv7-timer";
> + interrupts = <1 2 0xf08>,
> + <1 3 0xf08>,
> + <1 4 0xf08>,
> + <1 1 0xf08>;
> + clock-frequency = <19200000>;
> + };
> +};
> diff --git a/arch/arm/include/debug/msm.S b/arch/arm/include/debug/msm.S
> index 9166e1b..9d653d4 100644
> --- a/arch/arm/include/debug/msm.S
> +++ b/arch/arm/include/debug/msm.S
> @@ -46,6 +46,11 @@
> #define MSM_DEBUG_UART_PHYS 0x16440000
> #endif
>
> +#ifdef CONFIG_DEBUG_MSM8974_UART
> +#define MSM_DEBUG_UART_BASE 0xFA71E000
> +#define MSM_DEBUG_UART_PHYS 0xF991E000
> +#endif
> +
> .macro addruart, rp, rv, tmp
> #ifdef MSM_DEBUG_UART_PHYS
> ldr \rp, =MSM_DEBUG_UART_PHYS
> diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
> index 2586c28..086bcb9 100644
> --- a/arch/arm/mach-msm/Kconfig
> +++ b/arch/arm/mach-msm/Kconfig
> @@ -64,6 +64,19 @@ config ARCH_MSM_DT
> select SPARSE_IRQ
> select USE_OF
>
> +config ARCH_MSM8974
> + bool "MSM8974"
> + select ARM_GIC
> + select CPU_V7
> + select HAVE_ARM_ARCH_TIMER
> + select HAVE_SMP
> + select MSM_SCM if SMP
> + select USE_OF
> +
> +config ARCH_MSM_DT
> + def_bool y
> + depends on (ARCH_MSM8X60 || ARCH_MSM8960 || ARCH_MSM8974)
> +
> config MSM_HAS_DEBUG_UART_HS
> bool
>
> diff --git a/arch/arm/mach-msm/board-dt.c b/arch/arm/mach-msm/board-dt.c
> index 266a280..5211e80 100644
> --- a/arch/arm/mach-msm/board-dt.c
> +++ b/arch/arm/mach-msm/board-dt.c
> @@ -26,7 +26,16 @@ static const char * const msm_dt_match[] __initconst = {
> NULL
> };
>
> +static const char * const apq8074_dt_match[] __initconst = {
> + "qcom,apq8074-dragonboard",
> + NULL
> +};
> +
> DT_MACHINE_START(MSM_DT, "Qualcomm MSM (Flattened Device Tree)")
> .smp = smp_ops(msm_smp_ops),
> .dt_compat = msm_dt_match,
> MACHINE_END
> +
> +DT_MACHINE_START(APQ_DT, "Qualcomm MSM (Flattened Device Tree)")
> + .dt_compat = apq8074_dt_match,
> +MACHINE_END
> --
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> hosted by The Linux Foundation
>
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