From 96d6160324c49c81df10b6b4c75d2470cb30dce4 Mon Sep 17 00:00:00 2001 From: John Schmoller Date: Fri, 22 Oct 2010 00:20:23 -0500 Subject: pci: Add ability to re-enumerate PCI buses Add a new 'pci enum' command which re-enumerates the PCI buses. This command is enabled via the CONFIG_CMD_PCI_ENUM define and can be useful in boards with FPGAs connected via PCI/PCIe, boards that support PCI hot-plugging, or during PCI debug. Also enable the 'pci enum' command for X-ES's Freescale-based boards. Signed-off-by: John Schmoller Signed-off-by: Peter Tyser Acked-by: Kumar Gala Acked-by: Wolfgang Denk --- common/cmd_pci.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'common/cmd_pci.c') diff --git a/common/cmd_pci.c b/common/cmd_pci.c index 4bde05991..ccf5adaaa 100644 --- a/common/cmd_pci.c +++ b/common/cmd_pci.c @@ -497,6 +497,10 @@ int do_pci (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 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 */ @@ -518,6 +522,11 @@ int do_pci (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 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; @@ -545,6 +554,10 @@ U_BOOT_CMD( "list and access PCI Configuration Space", "[bus] [long]\n" " - short or long list of PCI devices on bus 'bus'\n" +#ifdef CONFIG_CMD_PCI_ENUM + "pci enum\n" + " - re-enumerate PCI buses\n" +#endif "pci header b.d.f\n" " - show header of PCI device 'bus.device.function'\n" "pci display[.b, .w, .l] b.d.f [address] [# of objects]\n" -- cgit v1.2.3