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[34.38.134.32]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38782514d35sm4462941f8f.74.2024.12.12.08.00.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Dec 2024 08:00:48 -0800 (PST) From: Tudor Ambarus Date: Thu, 12 Dec 2024 16:00:38 +0000 Subject: [PATCH v2 1/4] arm64: dts: exynos: gs101: add SRAM node Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241212-b4-acpm-v4-upstream-dts-v2-1-91b7a6f6d0b0@linaro.org> References: <20241212-b4-acpm-v4-upstream-dts-v2-0-91b7a6f6d0b0@linaro.org> In-Reply-To: <20241212-b4-acpm-v4-upstream-dts-v2-0-91b7a6f6d0b0@linaro.org> To: Peter Griffin , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Catalin Marinas , Will Deacon Cc: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, andre.draszik@linaro.org, kernel-team@android.com, willmcvicker@google.com, peter.griffin@linaro.org, daniel.lezcano@linaro.org, vincent.guittot@linaro.org, ulf.hansson@linaro.org, arnd@arndb.de, Tudor Ambarus X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1734019247; l=979; i=tudor.ambarus@linaro.org; s=20241212; h=from:subject:message-id; bh=g9Y6c/Lu4XdnwvVgrnVv9tKSFGDPtKMBC9QqU0RCKUw=; b=pe7nkbrj20qSYnrPkOzt+GqPA7lDUyR+IOiNPFAd4WlYXzbH8ZVMKRBtJ2AJ6BEWj54kNiXY8 XhWrSTkps7uBOgZLxbruYT2X/DmIRHZ7qF4C+mnzBjagKE9cPO7q4Im X-Developer-Key: i=tudor.ambarus@linaro.org; a=ed25519; pk=uQzE0NXo3dIjeowMTOPCpIiPHEz12IA/MbyzrZVh9WI= SRAM is used by the ACPM protocol to retrieve the ACPM channels information, which includes the TX/RX rings among other channel configuration data. Add the SRAM node. Signed-off-by: Tudor Ambarus --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index 302c5beb224a..1441e9a252c2 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -269,6 +269,14 @@ bldr_log_hist_reserved: bldr-log-hist-reserved@fd900000 { }; }; + apm_sram: sram@2039000 { + compatible = "mmio-sram"; + reg = <0x0 0x2039000 0x40000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x0 0x2039000 0x40000>; + }; + soc: soc@0 { compatible = "simple-bus"; #address-cells = <1>; From patchwork Thu Dec 12 16:00:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tudor Ambarus X-Patchwork-Id: 849949 Received: from mail-wm1-f51.google.com (mail-wm1-f51.google.com [209.85.128.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9A8F8229690 for ; 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[34.38.134.32]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38782514d35sm4462941f8f.74.2024.12.12.08.00.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Dec 2024 08:00:49 -0800 (PST) From: Tudor Ambarus Date: Thu, 12 Dec 2024 16:00:39 +0000 Subject: [PATCH v2 2/4] arm64: dts: exynos: gs101: add AP to APM mailbox node Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241212-b4-acpm-v4-upstream-dts-v2-2-91b7a6f6d0b0@linaro.org> References: <20241212-b4-acpm-v4-upstream-dts-v2-0-91b7a6f6d0b0@linaro.org> In-Reply-To: <20241212-b4-acpm-v4-upstream-dts-v2-0-91b7a6f6d0b0@linaro.org> To: Peter Griffin , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Catalin Marinas , Will Deacon Cc: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, andre.draszik@linaro.org, kernel-team@android.com, willmcvicker@google.com, peter.griffin@linaro.org, daniel.lezcano@linaro.org, vincent.guittot@linaro.org, ulf.hansson@linaro.org, arnd@arndb.de, Tudor Ambarus X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1734019247; l=1282; i=tudor.ambarus@linaro.org; s=20241212; h=from:subject:message-id; bh=ce1gfVKuhMWygYDqna0xFI3vmpwGiIISm4wS0eqE5Rg=; b=yKRS1dg8qQ9WdVmW4a6Zg6eAYV4MUjEMRK91aEUmMZbQw2ZHkn5kV9WpTw9VlRF1IDm6DHmUE SXlDqjTvmLxBx4qsFucA34eNpV9XbiYQVPyNFTyq1FYbsLz6NiLkKWg X-Developer-Key: i=tudor.ambarus@linaro.org; a=ed25519; pk=uQzE0NXo3dIjeowMTOPCpIiPHEz12IA/MbyzrZVh9WI= GS101 has 14 mailbox controllers. Add the AP to APM mailbox node. Mailbox controllers have a shared register that can be used for passing the mailbox messages. The AP to APM mailbox controller is used just as a doorbell mechanism. It raises interrupt to the firmware after the mailbox message has been written to SRAM where the TX/RX rings are defined. Signed-off-by: Tudor Ambarus --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index 1441e9a252c2..04561e15b96c 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -1445,6 +1445,15 @@ wakeup-interrupt-controller { }; }; + ap2apm_mailbox: mailbox@17610000 { + compatible = "google,gs101-mbox"; + reg = <0x17610000 0x1000>; + clocks = <&cmu_apm CLK_GOUT_APM_MAILBOX_APM_AP_PCLK>; + clock-names = "pclk"; + interrupts = ; + #mbox-cells = <2>; + }; + pinctrl_gsactrl: pinctrl@17940000 { compatible = "google,gs101-pinctrl"; reg = <0x17940000 0x00001000>; From patchwork Thu Dec 12 16:00:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tudor Ambarus X-Patchwork-Id: 850947 Received: from mail-wr1-f47.google.com (mail-wr1-f47.google.com [209.85.221.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5F02022969B for ; 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[34.38.134.32]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38782514d35sm4462941f8f.74.2024.12.12.08.00.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Dec 2024 08:00:49 -0800 (PST) From: Tudor Ambarus Date: Thu, 12 Dec 2024 16:00:40 +0000 Subject: [PATCH v2 3/4] arm64: dts: exynos: gs101: add ACPM protocol node Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241212-b4-acpm-v4-upstream-dts-v2-3-91b7a6f6d0b0@linaro.org> References: <20241212-b4-acpm-v4-upstream-dts-v2-0-91b7a6f6d0b0@linaro.org> In-Reply-To: <20241212-b4-acpm-v4-upstream-dts-v2-0-91b7a6f6d0b0@linaro.org> To: Peter Griffin , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Catalin Marinas , Will Deacon Cc: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, andre.draszik@linaro.org, kernel-team@android.com, willmcvicker@google.com, peter.griffin@linaro.org, daniel.lezcano@linaro.org, vincent.guittot@linaro.org, ulf.hansson@linaro.org, arnd@arndb.de, Tudor Ambarus X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1734019247; l=1371; i=tudor.ambarus@linaro.org; s=20241212; h=from:subject:message-id; bh=XbnGi70yp2CGKe3dsPZc/woxkOlnLt94ojsF7pP5ut8=; b=6Wl14vGUhIl14sU0fLxYuasLnwizMnpBV5iAByDdT3MnW5mXwH8MpxKGJEZzeAVdW7DCLd8pW 2kFiuaCUJuwCk2Ic62bVSRZuULxkx7xGKuE0/uFY1uEUXnBwY8i7iw5 X-Developer-Key: i=tudor.ambarus@linaro.org; a=ed25519; pk=uQzE0NXo3dIjeowMTOPCpIiPHEz12IA/MbyzrZVh9WI= Add the ACPM protocol node. ACPM protocol provides interface for all the client drivers making use of the features offered by the Active Power Management (APM) module. Signed-off-by: Tudor Ambarus --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index 04561e15b96c..8c3f07371912 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -277,6 +277,28 @@ apm_sram: sram@2039000 { ranges = <0x0 0x0 0x2039000 0x40000>; }; + firmware { + acpm_ipc: power-management { + compatible = "google,gs101-acpm-ipc"; + mboxes = <&ap2apm_mailbox 0 0 + &ap2apm_mailbox 0 1 + &ap2apm_mailbox 0 2 + &ap2apm_mailbox 0 3 + &ap2apm_mailbox 0 4 + &ap2apm_mailbox 0 5 + &ap2apm_mailbox 0 6 + &ap2apm_mailbox 0 7 + &ap2apm_mailbox 0 8 + &ap2apm_mailbox 0 9 + &ap2apm_mailbox 0 10 + &ap2apm_mailbox 0 11 + &ap2apm_mailbox 0 12 + &ap2apm_mailbox 0 13 + &ap2apm_mailbox 0 14>; + shmem = <&apm_sram>; + }; + }; + soc: soc@0 { compatible = "simple-bus"; #address-cells = <1>; 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[34.38.134.32]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38782514d35sm4462941f8f.74.2024.12.12.08.00.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Dec 2024 08:00:50 -0800 (PST) From: Tudor Ambarus Date: Thu, 12 Dec 2024 16:00:41 +0000 Subject: [PATCH v2 4/4] arm64: defconfig: enable ACPM protocol and Exynos mailbox Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241212-b4-acpm-v4-upstream-dts-v2-4-91b7a6f6d0b0@linaro.org> References: <20241212-b4-acpm-v4-upstream-dts-v2-0-91b7a6f6d0b0@linaro.org> In-Reply-To: <20241212-b4-acpm-v4-upstream-dts-v2-0-91b7a6f6d0b0@linaro.org> To: Peter Griffin , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Catalin Marinas , Will Deacon Cc: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, andre.draszik@linaro.org, kernel-team@android.com, willmcvicker@google.com, peter.griffin@linaro.org, daniel.lezcano@linaro.org, vincent.guittot@linaro.org, ulf.hansson@linaro.org, arnd@arndb.de, Tudor Ambarus X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1734019247; l=1030; i=tudor.ambarus@linaro.org; s=20241212; h=from:subject:message-id; bh=/C7bHQrkgGdLprOLUDNL1QPrbsGLOKte0YUezSURupU=; b=q/qMWb3Eov9H0T2BHl7oTCrCuPXOj90JVrh0cjnd8k61RuCnu1AB8+Cevc0d3x4+b2BnG9tb0 ExoRQa94+dQA0btBlEStNmn/o64BWNR7SWxVKOt/i78pqHEKVU8gpwT X-Developer-Key: i=tudor.ambarus@linaro.org; a=ed25519; pk=uQzE0NXo3dIjeowMTOPCpIiPHEz12IA/MbyzrZVh9WI= Enable the Samsung Exynos ACPM protocol and its transport layer, the Exynos mailbox driver. Samsung Exynos platforms implement ACPM to provide support for PMIC, clock frequency scaling, clock configuration and temperature sensors. Signed-off-by: Tudor Ambarus --- arch/arm64/configs/defconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index c62831e61586..91139b1cf813 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -262,6 +262,7 @@ CONFIG_IMX_SCU=y CONFIG_QCOM_TZMEM_MODE_SHMBRIDGE=y CONFIG_QCOM_QSEECOM=y CONFIG_QCOM_QSEECOM_UEFISECAPP=y +CONFIG_EXYNOS_ACPM_PROTOCOL=m CONFIG_GNSS=m CONFIG_GNSS_MTK_SERIAL=m CONFIG_MTD=y @@ -1378,6 +1379,7 @@ CONFIG_HWSPINLOCK_QCOM=y CONFIG_TEGRA186_TIMER=y CONFIG_RENESAS_OSTM=y CONFIG_ARM_MHU=y +CONFIG_EXYNOS_MBOX=m CONFIG_IMX_MBOX=y CONFIG_OMAP2PLUS_MBOX=m CONFIG_PLATFORM_MHU=y