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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-12-01 21:05:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-12-01 21:05:53 +0100 |
| commit | e073462966b26977b26937c5fc93b4fb24f04fef (patch) | |
| tree | 49221ed9ebf8e42ad5d80897e91286250f215e4a /Documentation/fpga/fpga-mgr.txt | |
| parent | 31114fa95bdb815f52f0cb0fad1260bd91007563 (diff) | |
| parent | e499807737b75387bcc9d146927dc36a0b7e4cff (diff) | |
Merge tag 'fpga-for-greg-20161129' of git://git.kernel.org/pub/scm/linux/kernel/git/atull/linux-fpga into char-misc-next
Alan writes:
fpga: Updates for 4.10
These are:
* Add git url to MAINTAINERS
* Allow write_init to specify how much buffer it needs
* Fixes for ISR state in zynq fpga manager driver
* Other small fixes for zynq
* Add Altera SoCFPGA drivers for COMPILE_TEST
Diffstat (limited to 'Documentation/fpga/fpga-mgr.txt')
| -rw-r--r-- | Documentation/fpga/fpga-mgr.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/fpga/fpga-mgr.txt b/Documentation/fpga/fpga-mgr.txt index 087924f2b20c..86ee5078fd03 100644 --- a/Documentation/fpga/fpga-mgr.txt +++ b/Documentation/fpga/fpga-mgr.txt @@ -169,7 +169,10 @@ The programming sequence is: 2. .write (may be called once or multiple times) 3. .write_complete -The .write_init function will prepare the FPGA to receive the image data. +The .write_init function will prepare the FPGA to receive the image data. The +buffer passed into .write_init will be atmost .initial_header_size bytes long, +if the whole bitstream is not immediately available then the core code will +buffer up at least this much before starting. The .write function writes a buffer to the FPGA. The buffer may be contain the whole FPGA image or may be a smaller chunk of an FPGA image. In the latter |