From: Sudeep Holla <sudeep.holla@arm.com> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, arm@kernel.org Cc: Sudeep Holla <sudeep.holla@arm.com>, Liviu Dudau <liviu.dudau@arm.com>, Punit Agrawal <punit.agrawal@arm.com>, "Jon Medhurst (Tixy)" <tixy@linaro.org>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>, Kevin Hilman <khilman@kernel.org> Subject: [PATCH REPOST v6 6/8] arm64: dts: add SRAM, MHU mailbox and SCPI support on Juno Date: Wed, 16 Sep 2015 18:16:37 +0100 [thread overview] Message-ID: <1442423799-23892-7-git-send-email-sudeep.holla@arm.com> (raw) In-Reply-To: <1442423799-23892-1-git-send-email-sudeep.holla@arm.com> This patch adds support for the MHU mailbox peripheral used on Juno by application processors to communicate with remote SCP handling most of the CPU/system power management. It also adds the SRAM reserving the shared memory and SCPI message protocol using that shared memory. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Cc: Jon Medhurst (Tixy) <tixy@linaro.org> --- arch/arm64/boot/dts/arm/juno-base.dtsi | 54 ++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi index e3ee96036eca..c624208edef6 100644 --- a/arch/arm64/boot/dts/arm/juno-base.dtsi +++ b/arch/arm64/boot/dts/arm/juno-base.dtsi @@ -17,6 +17,18 @@ }; }; + mailbox: mhu@2b1f0000 { + compatible = "arm,mhu", "arm,primecell"; + reg = <0x0 0x2b1f0000 0x0 0x1000>; + interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "mhu_lpri_rx", + "mhu_hpri_rx"; + #mbox-cells = <1>; + clocks = <&soc_refclk100mhz>; + clock-names = "apb_pclk"; + }; + gic: interrupt-controller@2c010000 { compatible = "arm,gic-400", "arm,cortex-a15-gic"; reg = <0x0 0x2c010000 0 0x1000>, @@ -44,6 +56,48 @@ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>; }; + sram: sram@2e000000 { + compatible = "arm,juno-sram-ns", "mmio-sram"; + reg = <0x0 0x2e000000 0x0 0x8000>; + + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x0 0x2e000000 0x8000>; + + cpu_scp_lpri: scp-shmem@0 { + compatible = "arm,juno-scp-shmem"; + reg = <0x0 0x200>; + }; + + cpu_scp_hpri: scp-shmem@200 { + compatible = "arm,juno-scp-shmem"; + reg = <0x200 0x200>; + }; + }; + + scpi { + compatible = "arm,scpi"; + mboxes = <&mailbox 1>; + shmem = <&cpu_scp_hpri>; + + clocks { + compatible = "arm,scpi-clocks"; + + scpi_dvfs: scpi_clocks@0 { + compatible = "arm,scpi-dvfs-clocks"; + #clock-cells = <1>; + clock-indices = <0>, <1>, <2>; + clock-output-names = "atlclk", "aplclk","gpuclk"; + }; + scpi_clk: scpi_clocks@3 { + compatible = "arm,scpi-variable-clocks"; + #clock-cells = <1>; + clock-indices = <3>, <4>; + clock-output-names = "pxlclk0", "pxlclk1"; + }; + }; + }; + /include/ "juno-clocks.dtsi" dma@7ff00000 { -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: sudeep.holla@arm.com (Sudeep Holla) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH REPOST v6 6/8] arm64: dts: add SRAM, MHU mailbox and SCPI support on Juno Date: Wed, 16 Sep 2015 18:16:37 +0100 [thread overview] Message-ID: <1442423799-23892-7-git-send-email-sudeep.holla@arm.com> (raw) In-Reply-To: <1442423799-23892-1-git-send-email-sudeep.holla@arm.com> This patch adds support for the MHU mailbox peripheral used on Juno by application processors to communicate with remote SCP handling most of the CPU/system power management. It also adds the SRAM reserving the shared memory and SCPI message protocol using that shared memory. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Cc: Jon Medhurst (Tixy) <tixy@linaro.org> --- arch/arm64/boot/dts/arm/juno-base.dtsi | 54 ++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi index e3ee96036eca..c624208edef6 100644 --- a/arch/arm64/boot/dts/arm/juno-base.dtsi +++ b/arch/arm64/boot/dts/arm/juno-base.dtsi @@ -17,6 +17,18 @@ }; }; + mailbox: mhu at 2b1f0000 { + compatible = "arm,mhu", "arm,primecell"; + reg = <0x0 0x2b1f0000 0x0 0x1000>; + interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "mhu_lpri_rx", + "mhu_hpri_rx"; + #mbox-cells = <1>; + clocks = <&soc_refclk100mhz>; + clock-names = "apb_pclk"; + }; + gic: interrupt-controller at 2c010000 { compatible = "arm,gic-400", "arm,cortex-a15-gic"; reg = <0x0 0x2c010000 0 0x1000>, @@ -44,6 +56,48 @@ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>; }; + sram: sram at 2e000000 { + compatible = "arm,juno-sram-ns", "mmio-sram"; + reg = <0x0 0x2e000000 0x0 0x8000>; + + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x0 0x2e000000 0x8000>; + + cpu_scp_lpri: scp-shmem at 0 { + compatible = "arm,juno-scp-shmem"; + reg = <0x0 0x200>; + }; + + cpu_scp_hpri: scp-shmem at 200 { + compatible = "arm,juno-scp-shmem"; + reg = <0x200 0x200>; + }; + }; + + scpi { + compatible = "arm,scpi"; + mboxes = <&mailbox 1>; + shmem = <&cpu_scp_hpri>; + + clocks { + compatible = "arm,scpi-clocks"; + + scpi_dvfs: scpi_clocks at 0 { + compatible = "arm,scpi-dvfs-clocks"; + #clock-cells = <1>; + clock-indices = <0>, <1>, <2>; + clock-output-names = "atlclk", "aplclk","gpuclk"; + }; + scpi_clk: scpi_clocks at 3 { + compatible = "arm,scpi-variable-clocks"; + #clock-cells = <1>; + clock-indices = <3>, <4>; + clock-output-names = "pxlclk0", "pxlclk1"; + }; + }; + }; + /include/ "juno-clocks.dtsi" dma at 7ff00000 { -- 1.9.1
next prev parent reply other threads:[~2015-09-16 17:18 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-09-16 17:16 [PATCH REPOST v6 0/8] ARM64: juno: add SCPI mailbox protocol, clock and CPUFreq support Sudeep Holla 2015-09-16 17:16 ` Sudeep Holla 2015-09-16 17:16 ` [PATCH REPOST v6 1/8] Documentation: add DT binding for ARM System Control and Power Interface(SCPI) protocol Sudeep Holla 2015-09-16 17:16 ` Sudeep Holla 2015-09-16 17:16 ` [PATCH REPOST v6 2/8] firmware: add support " Sudeep Holla 2015-09-16 17:16 ` Sudeep Holla 2015-09-16 17:16 ` [PATCH REPOST v6 3/8] clk: add support for clocks provided by SCP(System Control Processor) Sudeep Holla 2015-09-16 17:16 ` Sudeep Holla 2015-09-16 17:16 ` [PATCH REPOST v6 4/8] clk: scpi: add support for cpufreq virtual device Sudeep Holla 2015-09-16 17:16 ` Sudeep Holla 2015-09-16 17:16 ` [PATCH REPOST v6 5/8] cpufreq: arm_big_little: add SCPI interface driver Sudeep Holla 2015-09-16 17:16 ` Sudeep Holla 2015-09-16 17:16 ` Sudeep Holla [this message] 2015-09-16 17:16 ` [PATCH REPOST v6 6/8] arm64: dts: add SRAM, MHU mailbox and SCPI support on Juno Sudeep Holla 2015-09-16 17:16 ` [PATCH REPOST v6 7/8] arm64: dts: add CPU topology " Sudeep Holla 2015-09-16 17:16 ` Sudeep Holla 2015-09-16 17:16 ` [PATCH REPOST v6 8/8] arm64: dts: add clock support for all the cpus Sudeep Holla 2015-09-16 17:16 ` Sudeep Holla
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