/* PCI Configuration Space access commands
*
* Syntax:
* pci display[.b, .w, .l] bus.device.function} [addr] [len]
* pci next[.b, .w, .l] bus.device.function [addr]
* pci modify[.b, .w, .l] bus.device.function [addr]
* pci write[.b, .w, .l] bus.device.function addr value
*/
static int do_pci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr = 0, value = 0, size = 0;
pci_dev_t bdf = 0;
char cmd = 's';
if (argc > 1)
cmd = argv[1][0];
switch (cmd) {
case 'd': /* display */
case 'n': /* next */
case 'm': /* modify */
case 'w': /* write */
/* Check for a size specification. */
size = cmd_get_data_size(argv[1], 4);
if (argc > 3)
addr = simple_strtoul(argv[3], NULL, 16);
if (argc > 4)
value = simple_strtoul(argv[4], NULL, 16);
case 'h': /* header */
if (argc < 3)
goto usage;
if ((bdf = get_pci_dev(argv[2])) == -1)
return 1;
break;
#ifdef CONFIG_CMD_PCI_ENUM
case 'e':
break;
#endif
default: /* scan bus */
value = 1; /* short listing */
bdf = 0; /* bus number */
if (argc > 1) {
if (argv[argc-1][0] == 'l') {
value = 0;
argc--;
}
if (argc > 1)
bdf = simple_strtoul(argv[1], NULL, 16);
}
pciinfo(bdf, value);
return 0;
}
switch (argv[1][0]) {
case 'h': /* header */
pci_header_show(bdf);
return 0;
case 'd': /* display */
return pci_cfg_display(bdf, addr, size, value);
#ifdef CONFIG_CMD_PCI_ENUM
case 'e':
pci_init();
return 0;
#endif
case 'n': /* next */
if (argc < 4)
goto usage;
return pci_cfg_modify(bdf, addr, size, value, 0);
case 'm': /* modify */
if (argc < 4)
goto usage;
return pci_cfg_modify(bdf, addr, size, value, 1);
case 'w': /* write */
if (argc < 5)
goto usage;
return pci_cfg_write(bdf, addr, size, value);
}
return 1;
usage:
return CMD_RET_USAGE;
}
/* PCI Configuration Space access commands
*
* Syntax:
* pci display[.b, .w, .l] bus.device.function} [addr] [len]
* pci next[.b, .w, .l] bus.device.function [addr]
* pci modify[.b, .w, .l] bus.device.function [addr]
* pci write[.b, .w, .l] bus.device.function addr value
*/
static int do_pci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong addr = 0, value = 0, cmd_size = 0;
enum pci_size_t size = PCI_SIZE_32;
#ifdef CONFIG_DM_PCI
struct udevice *dev, *bus;
#else
pci_dev_t dev;
#endif
int busnum = 0;
pci_dev_t bdf = 0;
char cmd = 's';
int ret = 0;
if (argc > 1)
cmd = argv[1][0];
switch (cmd) {
case 'd': /* display */
case 'n': /* next */
case 'm': /* modify */
case 'w': /* write */
/* Check for a size specification. */
cmd_size = cmd_get_data_size(argv[1], 4);
size = (cmd_size == 4) ? PCI_SIZE_32 : cmd_size - 1;
if (argc > 3)
addr = simple_strtoul(argv[3], NULL, 16);
if (argc > 4)
value = simple_strtoul(argv[4], NULL, 16);
case 'h': /* header */
#ifdef CONFIG_DM_PCI
case 'b': /* bars */
#endif
if (argc < 3)
goto usage;
if ((bdf = get_pci_dev(argv[2])) == -1)
return 1;
break;
#if defined(CONFIG_DM_PCI)
case 'e':
pci_init();
return 0;
#endif
case 'r': /* no break */
default: /* scan bus */
value = 1; /* short listing */
if (argc > 1) {
if (cmd != 'r' && argv[argc-1][0] == 'l') {
value = 0;
argc--;
}
if (argc > 1)
busnum = simple_strtoul(argv[1], NULL, 16);
}
#ifdef CONFIG_DM_PCI
ret = uclass_get_device_by_seq(UCLASS_PCI, busnum, &bus);
if (ret) {
printf("No such bus\n");
return CMD_RET_FAILURE;
}
if (cmd == 'r')
pci_show_regions(bus);
else
pciinfo(bus, value);
#else
pciinfo(busnum, value);
#endif
return 0;
}
#ifdef CONFIG_DM_PCI
ret = dm_pci_bus_find_bdf(bdf, &dev);
if (ret) {
printf("No such device\n");
return CMD_RET_FAILURE;
}
#else
dev = bdf;
#endif
switch (argv[1][0]) {
case 'h': /* header */
pci_header_show(dev);
break;
case 'd': /* display */
return pci_cfg_display(dev, addr, size, value);
case 'n': /* next */
if (argc < 4)
goto usage;
ret = pci_cfg_modify(dev, addr, size, value, 0);
break;
case 'm': /* modify */
if (argc < 4)
goto usage;
ret = pci_cfg_modify(dev, addr, size, value, 1);
break;
case 'w': /* write */
if (argc < 5)
goto usage;
#ifdef CONFIG_DM_PCI
ret = dm_pci_write_config(dev, addr, value, size);
#else
ret = pci_cfg_write(dev, addr, size, value);
#endif
break;
#ifdef CONFIG_DM_PCI
case 'b': /* bars */
return pci_bar_show(dev);
#endif
default:
ret = CMD_RET_USAGE;
break;
}
return ret;
usage:
return CMD_RET_USAGE;
}