diff options
author | Nava kishore Manne <nava.manne@xilinx.com> | 2019-04-15 09:17:46 +0200 |
---|---|---|
committer | Michal Simek <michal.simek@xilinx.com> | 2019-04-15 10:22:51 +0200 |
commit | e840decc1954521ff73bbc87b5b3ea36af1704d2 (patch) | |
tree | a85729774fe134ab737b88a9d66a40f3bcd2a081 /drivers/firmware | |
parent | drivers: Defer probe if firmware is not ready (diff) | |
download | linux-e840decc1954521ff73bbc87b5b3ea36af1704d2.tar.xz linux-e840decc1954521ff73bbc87b5b3ea36af1704d2.zip |
firmware: xilinx: Add fpga API's
This Patch Adds fpga API's to support the Bitstream loading
by using firmware interface.
Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'drivers/firmware')
-rw-r--r-- | drivers/firmware/xilinx/zynqmp.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 87a1d636c0dc..fd3d83745208 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -540,6 +540,49 @@ static int zynqmp_pm_reset_get_status(const enum zynqmp_pm_reset reset, } /** + * 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 * @@ -642,6 +685,8 @@ 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, }; /** |