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MIME-Version: 1.0 Content-Type: text/plain X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: ffb1fac1-9a3f-44f3-69b1-08d6c1728f8f X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(5600140)(711020)(4605104)(4709054)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328);SRVR:MW2PR02MB3834; X-MS-TrafficTypeDiagnostic: MW2PR02MB3834: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-Microsoft-Antispam-PRVS: X-Forefront-PRVS: 000800954F X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: rv3/bv0PJJdGfsWdK8WILZ0btJG/gCnTRQFf+jjYAV+Q9IDhDCVA4uhIqKwA30UynflrKnqZFmoi1jML27hUep7oJMksza2IjIQ8mFLyhpIVitVSrhL1ZSU8bGo63UZ5vExgRy0zCYWPHN0x3J0OStsDXH6xIRzDZADw0lojcrK6HGFGRoziPqGQ0c/SsyfYpXEYFJwx14N8XK9oKDL5rfmrgyqyXt5Mizfn/YeGylkeooCg3RbD+02ciZjvOiYN9K2ft5nnMUa+7VcO9g90qyRRd5l0r3qfJICGY1xBmkxyh+VKExT7iQMe5C7djdrb5xwFAhWAV1iLxP/vmTkl2e+80q25ySlkCJGDUzCu2vylxf/1M0gglwKmf6FnHpL9uVdPEZrOwLTnuHQwseiS7N9DUK54o/NJP1Yt8aib/dE= X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Apr 2019 07:18:29.6125 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ffb1fac1-9a3f-44f3-69b1-08d6c1728f8f X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c;Ip=[149.199.60.100];Helo=[xsj-pvapsmtpgw02] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2PR02MB3834 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This Patch Adds fpga API's to support the Bitstream loading by using firmware interface. Signed-off-by: Nava kishore Manne Reviewed-by: Moritz Fischer --- Changes for v5: -Modified API's doc as suggested by Moritz. drivers/firmware/xilinx/zynqmp.c | 45 ++++++++++++++++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 12 ++++++++ 2 files changed, 57 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 98f936125643..f355ad42917c 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -537,6 +537,49 @@ static int zynqmp_pm_reset_get_status(const enum zynqmp_pm_reset reset, return ret; } +/* + * zynqmp_pm_fpga_load - Perform the fpga load + * @address: Address to write to + * @size: pl bitstream size + * @flags: Bitstream type + * -XILINX_ZYNQMP_PM_FPGA_FULL: FPGA full reconfiguration + * -XILINX_ZYNQMP_PM_FPGA_PARTIAL: FPGA partial reconfiguration + * + * This function provides access to pmufw. To transfer + * the required bitstream into PL. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_fpga_load(const u64 address, const u32 size, + const u32 flags) +{ + return zynqmp_pm_invoke_fn(PM_FPGA_LOAD, lower_32_bits(address), + upper_32_bits(address), size, flags, NULL); +} + +/** + * zynqmp_pm_fpga_get_status - Read value from PCAP status register + * @value: Value to read + * + * This function provides access to the pmufw to get the PCAP + * status + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_fpga_get_status(u32 *value) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + if (!value) + return -EINVAL; + + ret = zynqmp_pm_invoke_fn(PM_FPGA_GET_STATUS, 0, 0, 0, 0, ret_payload); + *value = ret_payload[1]; + + return ret; +} + /** * zynqmp_pm_init_finalize() - PM call to inform firmware that the caller * master has initialized its own power management @@ -640,6 +683,8 @@ static const struct zynqmp_eemi_ops eemi_ops = { .request_node = zynqmp_pm_request_node, .release_node = zynqmp_pm_release_node, .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 642dab10f65d..1b1de5539036 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -48,6 +48,14 @@ #define ZYNQMP_PM_CAPABILITY_WAKEUP 0x4U #define ZYNQMP_PM_CAPABILITY_POWER 0x8U +/* + * Firmware FPGA Manager flags + * XILINX_ZYNQMP_PM_FPGA_FULL: FPGA full reconfiguration + * XILINX_ZYNQMP_PM_FPGA_PARTIAL: FPGA partial reconfiguration + */ +#define XILINX_ZYNQMP_PM_FPGA_FULL 0x0U +#define XILINX_ZYNQMP_PM_FPGA_PARTIAL BIT(0) + enum pm_api_id { PM_GET_API_VERSION = 1, PM_REQUEST_NODE = 13, @@ -56,6 +64,8 @@ enum pm_api_id { PM_RESET_ASSERT = 17, PM_RESET_GET_STATUS, PM_PM_INIT_FINALIZE = 21, + PM_FPGA_LOAD, + PM_FPGA_GET_STATUS, PM_GET_CHIPID = 24, PM_IOCTL = 34, PM_QUERY_DATA, @@ -258,6 +268,8 @@ struct zynqmp_pm_query_data { struct zynqmp_eemi_ops { int (*get_api_version)(u32 *version); int (*get_chipid)(u32 *idcode, u32 *version); + int (*fpga_load)(const u64 address, const u32 size, const u32 flags); + int (*fpga_get_status)(u32 *value); int (*query_data)(struct zynqmp_pm_query_data qdata, u32 *out); int (*clock_enable)(u32 clock_id); int (*clock_disable)(u32 clock_id); -- 2.18.0