diff options
| author | Rajan Vaja <rajanv@xilinx.com> | 2018-09-12 12:38:39 -0700 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2018-09-26 08:47:35 +0200 |
| commit | b321725257c17335b6a8388530366caa2c581084 (patch) | |
| tree | 125162c3428deeb7f36069eae10a3f596cc40f46 /drivers/firmware/xilinx/zynqmp.c | |
| parent | f9627312e20721681ea326bd2b7935bf8034b288 (diff) | |
firmware: xilinx: Add debugfs interface
Firmware-debug provides debugfs interface to all APIs.
Debugfs can be used to call firmware APIs with required
parameters.
Usage:
* Calling firmware API through debugfs:
# echo "<api-name> <arg1> .. <argn>" > /sys/.../zynqmp-firmware/pm
* Read output of last called firmware API:
# cat /sys/.../zynqmp-firmware/pm
Refer ug1200 for more information on these APIs:
* https://www.xilinx.com/support/documentation/user_guides/ug1200-eemi-api.pdf
Add basic debugfs file to get API version.
Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'drivers/firmware/xilinx/zynqmp.c')
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 697f4fa23a45..84b3fd2eca8b 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -21,6 +21,7 @@ #include <linux/uaccess.h> #include <linux/firmware/xlnx-zynqmp.h> +#include "zynqmp-debug.h" /** * zynqmp_pm_ret_code() - Convert PMU-FW error codes to Linux error codes @@ -493,11 +494,15 @@ static int zynqmp_firmware_probe(struct platform_device *pdev) pr_info("%s Trustzone version v%d.%d\n", __func__, pm_tz_version >> 16, pm_tz_version & 0xFFFF); + zynqmp_pm_api_debugfs_init(); + return of_platform_populate(dev->of_node, NULL, NULL, dev); } static int zynqmp_firmware_remove(struct platform_device *pdev) { + zynqmp_pm_api_debugfs_exit(); + return 0; } |