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| 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-debug.h | |
| parent | f9627312e20721681ea326bd2b7935bf8034b288 (diff) | |
| download | kernel_replicant_linux-b321725257c17335b6a8388530366caa2c581084.tar.gz kernel_replicant_linux-b321725257c17335b6a8388530366caa2c581084.tar.bz2 kernel_replicant_linux-b321725257c17335b6a8388530366caa2c581084.zip | |
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-debug.h')
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp-debug.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/firmware/xilinx/zynqmp-debug.h b/drivers/firmware/xilinx/zynqmp-debug.h new file mode 100644 index 000000000000..9929f8b433f5 --- /dev/null +++ b/drivers/firmware/xilinx/zynqmp-debug.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Xilinx Zynq MPSoC Firmware layer + * + * Copyright (C) 2014-2018 Xilinx + * + * Michal Simek <michal.simek@xilinx.com> + * Davorin Mista <davorin.mista@aggios.com> + * Jolly Shah <jollys@xilinx.com> + * Rajan Vaja <rajanv@xilinx.com> + */ + +#ifndef __FIRMWARE_ZYNQMP_DEBUG_H__ +#define __FIRMWARE_ZYNQMP_DEBUG_H__ + +#if IS_REACHABLE(CONFIG_ZYNQMP_FIRMWARE_DEBUG) +void zynqmp_pm_api_debugfs_init(void); +void zynqmp_pm_api_debugfs_exit(void); +#else +static inline void zynqmp_pm_api_debugfs_init(void) { } +static inline void zynqmp_pm_api_debugfs_exit(void) { } +#endif + +#endif /* __FIRMWARE_ZYNQMP_DEBUG_H__ */ |