This Patch Adds fpga API's to support the Bitstream loading by using firmware interface.
Signed-off-by: Nava kishore Manne <[email protected]> --- Changes for v2: -New Patch. drivers/firmware/xilinx/zynqmp.c | 46 ++++++++++++++++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 4 +++ 2 files changed, 50 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 7ccedf083926..9b3a59512dd7 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -447,6 +447,50 @@ static int zynqmp_pm_clock_getparent(u32 clock_id, u32 *parent_id) return ret; } +/** + * zynqmp_pm_fpga_load - Perform the fpga load + * @address: Address to write to + * @size: pl bitstream size + * @flags: + * BIT(0) - Bit-stream type. + * 0 - Full Bit-stream. + * 1 - Partial Bit-stream. + * + * 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 xilfpga library 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; +} + static const struct zynqmp_eemi_ops eemi_ops = { .get_api_version = zynqmp_pm_get_api_version, .ioctl = zynqmp_pm_ioctl, @@ -460,6 +504,8 @@ static const struct zynqmp_eemi_ops eemi_ops = { .clock_getrate = zynqmp_pm_clock_getrate, .clock_setparent = zynqmp_pm_clock_setparent, .clock_getparent = zynqmp_pm_clock_getparent, + .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 58a74781b51d..5a6bd5e58ea4 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -34,6 +34,8 @@ enum pm_api_id { PM_GET_API_VERSION = 1, + PM_FPGA_LOAD = 22, + PM_FPGA_GET_STATUS, PM_IOCTL = 34, PM_QUERY_DATA, PM_CLOCK_ENABLE, @@ -90,6 +92,8 @@ struct zynqmp_pm_query_data { struct zynqmp_eemi_ops { int (*get_api_version)(u32 *version); + int (*fpga_load)(const u64 address, const u32 size, const u32 flags); + int (*fpga_get_status)(u32 *value); int (*ioctl)(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2, u32 *out); int (*query_data)(struct zynqmp_pm_query_data qdata, u32 *out); int (*clock_enable)(u32 clock_id); -- 2.18.0
