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Mon, 24 Feb 2020 09:52:35 -0800 Received: from xsj-pvapsmtp01 (mailhost.xilinx.com [149.199.38.66]) by xsj-smtp-dlp2.xlnx.xilinx.com (8.13.8/8.13.1) with ESMTP id 01OHqVfZ015188; Mon, 24 Feb 2020 09:52:31 -0800 Received: from [172.19.2.206] (helo=xsjblevinsk50.xilinx.com) by xsj-pvapsmtp01 with esmtp (Exim 4.63) (envelope-from ) id 1j6HuB-0007aE-Ko; Mon, 24 Feb 2020 09:52:31 -0800 From: Ben Levinsky To: ohad@wizery.com, bjorn.andersson@linaro.org, michal.simek@xilinx.com, jollys@xilinx.com, rajan.vaja@xilinx.com, robh+dt@kernel.org, mark.rutland@arm.com Cc: linux-remoteproc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/5] firmware: xilinx: Add shutdown/wakeup APIs Date: Mon, 24 Feb 2020 09:52:28 -0800 Message-Id: <1582566751-13118-3-git-send-email-ben.levinsky@xilinx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1582566751-13118-1-git-send-email-ben.levinsky@xilinx.com> References: <1582566751-13118-1-git-send-email-ben.levinsky@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83; 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Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB5655 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add shutdown/wakeup a resource eemi operations to shutdown or bringup a resource. Signed-off-by: Ben Levinsky --- drivers/firmware/xilinx/zynqmp.c | 35 +++++++++++++++++++++++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 8 ++++++++ 2 files changed, 43 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 20e4574..486dcb1 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -692,6 +692,39 @@ static int zynqmp_pm_release_node(const u32 node) } /** + * zynqmp_pm_force_powerdown - PM call to request for another PU or subsystem to + * be powered down forcefully + * @target: Node ID of the targeted PU or subsystem + * @ack: Flag to specify whether acknowledge is requested + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_force_powerdown(const u32 target, + const enum zynqmp_pm_request_ack ack) +{ + return zynqmp_pm_invoke_fn(PM_FORCE_POWERDOWN, target, ack, 0, 0, NULL); +} + +/** + * zynqmp_pm_request_wakeup - PM call to wake up selected master or subsystem + * @node: Node ID of the master or subsystem + * @set_addr: Specifies whether the address argument is relevant + * @address: Address from which to resume when woken up + * @ack: Flag to specify whether acknowledge requested + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_request_wakeup(const u32 node, + const bool set_addr, + const u64 address, + const enum zynqmp_pm_request_ack ack) +{ + /* set_addr flag is encoded into 1st bit of address */ + return zynqmp_pm_invoke_fn(PM_REQUEST_WAKEUP, node, address | set_addr, + address >> 32, ack, NULL); +} + +/** * zynqmp_pm_set_requirement() - PM call to set requirement for PM slaves * @node: Node ID of the slave * @capabilities: Requested capabilities of the slave @@ -731,6 +764,8 @@ static const struct zynqmp_eemi_ops eemi_ops = { .set_suspend_mode = zynqmp_pm_set_suspend_mode, .request_node = zynqmp_pm_request_node, .release_node = zynqmp_pm_release_node, + .force_powerdown = zynqmp_pm_force_powerdown, + .request_wakeup = zynqmp_pm_request_wakeup, .set_requirement = zynqmp_pm_set_requirement, .fpga_load = zynqmp_pm_fpga_load, .fpga_get_status = zynqmp_pm_fpga_get_status, diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index b8ca118..0a68849 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -82,6 +82,8 @@ enum pm_api_id { PM_CLOCK_GETRATE, PM_CLOCK_SETPARENT, PM_CLOCK_GETPARENT, + PM_FORCE_POWERDOWN = 8, + PM_REQUEST_WAKEUP = 10, PM_FEATURE_CHECK = 63, PM_API_MAX, }; @@ -330,6 +332,12 @@ struct zynqmp_eemi_ops { const u32 qos, const enum zynqmp_pm_request_ack ack); int (*release_node)(const u32 node); + int (*force_powerdown)(const u32 target, + const enum zynqmp_pm_request_ack ack); + int (*request_wakeup)(const u32 node, + const bool set_addr, + const u64 address, + const enum zynqmp_pm_request_ack ack); int (*set_requirement)(const u32 node, const u32 capabilities, const u32 qos, From patchwork Mon Feb 24 17:52:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Levinsky X-Patchwork-Id: 204336 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3428CC11D30 for ; 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Mon, 24 Feb 2020 09:52:31 -0800 From: Ben Levinsky To: ohad@wizery.com, bjorn.andersson@linaro.org, michal.simek@xilinx.com, jollys@xilinx.com, rajan.vaja@xilinx.com, robh+dt@kernel.org, mark.rutland@arm.com Cc: linux-remoteproc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Jason Wu , Wendy Liang Subject: [PATCH 4/5] dt-bindings: remoteproc: Add documentation for ZynqMP R5 rproc bindings Date: Mon, 24 Feb 2020 09:52:30 -0800 Message-Id: <1582566751-13118-5-git-send-email-ben.levinsky@xilinx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1582566751-13118-1-git-send-email-ben.levinsky@xilinx.com> References: <1582566751-13118-1-git-send-email-ben.levinsky@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83; IPV:; CTRY:US; EFV:NLI; SFV:NSPM; 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Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR02MB4476 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Jason Wu Add binding for ZynqMP R5 OpenAMP. Represent the RPU domain resources in one device node. Each RPU processor is a subnode of the top RPU domain node. Signed-off-by: Jason Wu Signed-off-by: Wendy Liang Signed-off-by: Michal Simek --- .../remoteproc/xilinx,zynqmp-r5-remoteproc.txt | 135 +++++++++++++++++++++ 1 file changed, 135 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.txt diff --git a/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.txt b/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.txt new file mode 100644 index 0000000..ee7a515 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.txt @@ -0,0 +1,135 @@ +Xilinx ARM Cortex A53-R5 remoteproc driver +========================================== + +ZynqMP family of devices use two Cortex R5 processors to help with various +low power / real time tasks. + +This driver requires specific ZynqMP hardware design. + +ZynqMP R5 Device Node: +================================= +A ZynqMP R5 device node is used to represent RPU domain +within ZynqMP SoC. This device node contains RPU processor +subnodes. + +Required Properties: +-------------------- + - compatible : Should be "xlnx,zynqmp-r5-remoteproc-1.0" + - core_conf : R5 core configuration (valid string - split or lock-step) + - interrupts : Interrupt mapping for remoteproc IPI. It is required if the + user uses the remoteproc driver with the RPMsg kernel driver. + - interrupt-parent : Phandle for the interrupt controller. It is required if + the user uses the remoteproc driver with the RPMsg kernel + kernel driver. + +ZynqMP R5 Remoteproc Device Node: +================================= +A ZynqMP R5 Remoteproc device node is used to represent a RPU processor. +It is a subnode to the ZynqMP R5 device node. It also contains tightly +coupled memory subnodes. + +Required Properties: +-------------------- + - pnode-id: ZynqMP R5 processor power domain ID which will be used by + ZynqMP power management unit to idetify the processor. + +Optional Properties: +-------------------- + - memory-region: reserved memory which will be used by R5 processor + + +ZynqMP R5 Remoteproc Device Node: +================================= +A ZynqMP R5 Remoteproc device node is used to represent a RPU processor. +It is a subnode to the ZynqMP R5 device node. + +Required Properties: +-------------------- + - pnode-id: ZynqMP R5 processor power domain ID which will be used by + ZynqMP power management unit to idetify the processor. + +Optional Properties: +-------------------- + - memory-region: reserved memory which will be used by R5 processor + - mboxes: Specify tx and rx mailboxes + - mbox-names: List of identifier strings for tx/rx mailbox channel. + +ZynqMP R5 TCM Device Node: +================================= +The ZynqMP R5 TCM device node is used to represent the TCM memory. +It is a subnode to the ZynqMP R5 processor. + +Required Properties: +-------------------- + - reg: TCM address range + - pnode-id: TCM power domain ID + + +Example: +-------- + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + /* R5 0 firmware memory in DDR */ + rproc_0_fw_reserved: rproc@3ed000000 { + no-map; + reg = <0x0 0x3ed00000 0x0 0x40000>; + }; + /* DMA shared memory between APU and RPU */ + rpu0vdev0buffer: rpu0vdev0buffer@3ed400000 { + compatible = "shared-dma-pool"; + no-map; + reg = <0x0 0x3ed40000 0x0 0x100000>; + }; + }; + + zynqmp-r5-remoteproc@0 { + compatible = "xlnx,zynqmp-r5-remoteproc-1.0"; + core_conf = "split"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + r5-0: r5@0 { + #address-cells = <2>; + #size-cells = <2>; + ranges; + memory-region = <&rproc_0_fw_reserved>, + <&rpu0vdev0buffer>; + pnode-id = <0x7>; + mboxes = <&ipi_mailbox_rpu0 0>, <&ipi_mailbox_rpu0 1>; + mbox-names = "tx", "rx"; + tcm-a: tcm@0 { + reg = <0x0 0xFFE00000 0x0 0x10000>, + pnode-id = <0xf>; + }; + tcm-b: tcm@1 { + reg = <0x0 0xFFE20000 0x0 0x10000>, + pnode-id = <0x10>; + }; + }; + } ; + + zynqmp_ipi { + compatible = "xlnx,zynqmp-ipi-mailbox"; + interrupt-parent = <&gic>; + interrupts = <0 29 4>; + xlnx,ipi-id = <7>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + /* APU<->RPU0 IPI mailbox controller */ + ipi_mailbox_rpu0: mailbox@ff90600 { + reg = <0xff990600 0x20>, + <0xff990620 0x20>, + <0xff9900c0 0x20>, + <0xff9900e0 0x20>; + reg-names = "local_request_region", + "local_response_region", + "remote_request_region", + "remote_response_region"; + #mbox-cells = <1>; + xlnx,ipi-id = <1>; + }; + };