Exemplo n.º 1
0
/* 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;
}
Exemplo n.º 2
0
/* 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;
}