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 --- drivers/pci/fsl_pci_init.c | 3 +++ drivers/pci/pci.c | 4 +++- 2 files changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c index 001e6eb900..1f021036e5 100644 --- a/drivers/pci/fsl_pci_init.c +++ b/drivers/pci/fsl_pci_init.c @@ -91,6 +91,9 @@ int fsl_setup_hose(struct pci_controller *hose, unsigned long addr) { volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) addr; + /* Reset hose to make sure its in a clean state */ + memset(hose, 0, sizeof(struct pci_controller)); + pci_setup_indirect(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data); return fsl_is_pci_agent(hose); diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index cd64a87fc6..848746f1ed 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -139,7 +139,7 @@ void *pci_map_bar(pci_dev_t pdev, int bar, int flags) * */ -static struct pci_controller* hose_head = NULL; +static struct pci_controller* hose_head; void pci_register_hose(struct pci_controller* hose) { @@ -640,6 +640,8 @@ void pci_init(void) } #endif /* CONFIG_PCI_BOOTDELAY */ + hose_head = NULL; + /* now call board specific pci_init()... */ pci_init_board(); } -- cgit