diff options
Diffstat (limited to 'drivers/fpga')
| -rw-r--r-- | drivers/fpga/fpga-mgr.c | 6 | ||||
| -rw-r--r-- | drivers/fpga/socfpga-a10.c | 1 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c index 79ce2eea44db..f0a69d3e60a5 100644 --- a/drivers/fpga/fpga-mgr.c +++ b/drivers/fpga/fpga-mgr.c @@ -53,10 +53,12 @@ int fpga_mgr_buf_load(struct fpga_manager *mgr, struct fpga_image_info *info, /* * Call the low level driver's write_init function. This will do the * device-specific things to get the FPGA into the state where it is - * ready to receive an FPGA image. + * ready to receive an FPGA image. The low level driver only gets to + * see the first initial_header_size bytes in the buffer. */ mgr->state = FPGA_MGR_STATE_WRITE_INIT; - ret = mgr->mops->write_init(mgr, info, buf, count); + ret = mgr->mops->write_init(mgr, info, buf, + min(mgr->mops->initial_header_size, count)); if (ret) { dev_err(dev, "Error preparing FPGA for writing\n"); mgr->state = FPGA_MGR_STATE_WRITE_INIT_ERR; diff --git a/drivers/fpga/socfpga-a10.c b/drivers/fpga/socfpga-a10.c index ccd9fb23bd52..f8770af0f6b5 100644 --- a/drivers/fpga/socfpga-a10.c +++ b/drivers/fpga/socfpga-a10.c @@ -470,6 +470,7 @@ static enum fpga_mgr_states socfpga_a10_fpga_state(struct fpga_manager *mgr) } static const struct fpga_manager_ops socfpga_a10_fpga_mgr_ops = { + .initial_header_size = (RBF_DECOMPRESS_OFFSET + 1) * 4, .state = socfpga_a10_fpga_state, .write_init = socfpga_a10_fpga_write_init, .write = socfpga_a10_fpga_write, |