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Simple PCIe FMC carrier SPEC
Commit f264c172 authored by Federico Vaga's avatar Federico Vaga
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sw:drv: add debugfs for SPEC CSR registers 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent 757864fb
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Showing with 63 additions and 2 deletions
software/kernel/spec-core-fpga.c
View file @ f264c172
......@@ -64,6 +64,33 @@ enum spec_fpga_therm_offsets {
SPEC_FPGA_THERM_TEMP = SPEC_FPGA_MEM_THERM_START + 0x8,
};
static const struct debugfs_reg32 spec_fpga_debugfs_reg32[] = {
{
.name = "Application offset",
.offset = SPEC_FPGA_CSR_APP_OFF,
},
{
.name = "Resets",
.offset = SPEC_FPGA_CSR_RESETS,
},
{
.name = "FMC present",
.offset = SPEC_FPGA_CSR_FMC_PRESENT,
},
{
.name = "GN4124 Status",
.offset = SPEC_FPGA_CSR_GN4124_STATUS,
},
{
.name = "DDR Status",
.offset = SPEC_FPGA_CSR_DDR_STATUS,
},
{
.name = "PCB revision",
.offset = SPEC_FPGA_CSR_PCB_REV,
},
};
static struct resource spec_fpga_vic_res[] = {
{
......@@ -592,8 +619,36 @@ int spec_fpga_init(struct spec_dev *spec)
if (err)
goto err_app;
spec->dbg_dir_fpga = debugfs_create_dir(dev_name(&spec->dev),
spec->dbg_dir);
if (IS_ERR_OR_NULL(spec->dbg_dir_fpga)) {
err = PTR_ERR(spec->dbg_dir_fpga);
dev_err(&spec->dev,
"Cannot create debugfs directory \"%s\" (%d)\n",
dev_name(&spec->dev), err);
goto err_dbg_dir;
}
spec->dbg_csr_reg.regs = spec_fpga_debugfs_reg32;
spec->dbg_csr_reg.nregs = ARRAY_SIZE(spec_fpga_debugfs_reg32);
spec->dbg_csr_reg.base = spec->fpga;
spec->dbg_csr = debugfs_create_regset32(SPEC_DBG_CSR_NAME, 0200,
spec->dbg_dir_fpga,
&spec->dbg_csr_reg);
if (IS_ERR_OR_NULL(spec->dbg_csr)) {
err = PTR_ERR(spec->dbg_csr);
dev_warn(&spec->dev,
"Cannot create debugfs file \"%s\" (%d)\n",
SPEC_DBG_CSR_NAME, err);
goto err_dbg_csr;
}
return 0;
err_dbg_csr:
debugfs_remove_recursive(spec->dbg_dir_fpga);
err_dbg_dir:
spec_fpga_app_exit(spec);
err_app:
spec_fmc_exit(spec);
err_fmc:
......@@ -611,6 +666,7 @@ err_name:
int spec_fpga_exit(struct spec_dev *spec)
{
debugfs_remove_recursive(spec->dbg_dir_fpga);
spec_fpga_app_exit(spec);
spec_fmc_exit(spec);
spec_fpga_devices_exit(spec);
......
software/kernel/spec-core.c
View file @ f264c172
......@@ -288,6 +288,8 @@ static int spec_probe(struct pci_dev *pdev,
if (err)
goto err_sysfs;
spec_dbg_init(spec);
mutex_lock(&spec->mtx);
err = spec_fpga_init(spec);
if (err)
......@@ -295,8 +297,6 @@ static int spec_probe(struct pci_dev *pdev,
"FPGA incorrectly programmed or empty (%d)\n", err);
mutex_unlock(&spec->mtx);
spec_dbg_init(spec);
return 0;
err_sysfs:
......
software/kernel/spec.h
View file @ f264c172
......@@ -133,6 +133,11 @@ struct spec_dev {
#define SPEC_DBG_META_NAME "fpga_device_metadata"
struct dentry *dbg_meta;
struct dentry *dbg_dir_fpga;
#define SPEC_DBG_CSR_NAME "csr_regs"
struct dentry *dbg_csr;
struct debugfs_regset32 dbg_csr_reg;
struct gpiod_lookup_table *gpiod_table;
struct gpio_desc *gpiod[GN4124_GPIO_MAX];
};
......
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