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Simple PCIe FMC carrier SPEC - Software
Commit 83d3fa57 authored by Federico Vaga's avatar Federico Vaga
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kernel: load a different golden bitstream according to SPEC type 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent 3afdfcba
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Showing with 26 additions and 2 deletions
kernel/spec-pci.c
View file @ 83d3fa57
......@@ -27,12 +27,30 @@
#include "spec.h"
#include "loader-ll.h"
char *spec_fw_name = "fmc/spec-init.bin";
static char *spec_fw_name_45t = "fmc/spec-init.bin";
static char *spec_fw_name_100t = "fmc/spec-init-100T.bin";
char *spec_fw_name = "";
module_param_named(fw_name, spec_fw_name, charp, 0444);
int spec_use_msi = 0;
module_param_named(use_msi, spec_use_msi, int, 0444);
/**
* According to the PCI device ID, load different golden
*/
static char *spec_golden_name_get(unsigned int device_id)
{
if (strlen(spec_fw_name) > 0)
return spec_fw_name;
switch (device_id) {
case PCI_DEVICE_ID_SPEC_45T:
return spec_fw_name_45t;
case PCI_DEVICE_ID_SPEC_100T:
return spec_fw_name_100t;
}
return NULL;
}
/* Load the FPGA. This bases on loader-ll.c, a kernel/user space thing */
int spec_load_fpga(struct spec_dev *spec, const void *data, int size)
{
......@@ -76,6 +94,11 @@ int spec_load_fpga_file(struct spec_dev *spec, char *name)
const struct firmware *fw;
int err = 0;
if (!name) {
dev_err(dev, "You must provide a golden binary\n");
return -EINVAL;
}
err = request_firmware(&fw, name, dev);
if (err < 0) {
dev_err(dev, "request firmware \"%s\": error %i\n", name, err);
......@@ -97,7 +120,8 @@ static int spec_reconfigure(struct spec_dev *spec, struct fmc_gateware *gw)
spec_fmc_destroy(spec);
/* Load the golden FPGA binary to read the eeprom */
ret = spec_load_fpga_file(spec, spec_fw_name);
ret = spec_load_fpga_file(spec,
spec_golden_name_get(spec->pdev->device));
if (ret)
return ret;
......
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