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| author | Jia Hongtao <B38951@freescale.com> | 2012-08-03 12:14:09 +0200 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2012-08-03 15:25:52 +0200 |
| commit | c9f11c30374329a0d2a88cf05281ca49d8eca9ab (patch) | |
| tree | f0d18ba0e1f589ef8e7c70689fe25848867310ca | |
| parent | Linux 3.6-rc1 (diff) | |
| download | linux-c9f11c30374329a0d2a88cf05281ca49d8eca9ab.tar.xz linux-c9f11c30374329a0d2a88cf05281ca49d8eca9ab.zip | |
powerpc/fsl-pci: Only scan PCI bus if configured as a host
We change fsl_add_bridge to return -ENODEV if the controller is working in
agent mode. Then check the return value of fsl_add_bridge to guarantee
that only successfully added host bus will be scanned.
Signed-off-by: Jia Hongtao <B38951@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/sysdev/fsl_pci.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index a7b2a600d0a4..c37f46136321 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -465,7 +465,7 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary) iounmap(hose->cfg_data); iounmap(hose->cfg_addr); pcibios_free_controller(hose); - return 0; + return -ENODEV; } setup_pci_cmd(hose); @@ -827,6 +827,7 @@ struct device_node *fsl_pci_primary; void __devinit fsl_pci_init(void) { + int ret; struct device_node *node; struct pci_controller *hose; dma_addr_t max = 0xffffffff; @@ -855,10 +856,12 @@ void __devinit fsl_pci_init(void) if (!fsl_pci_primary) fsl_pci_primary = node; - fsl_add_bridge(node, fsl_pci_primary == node); - hose = pci_find_hose_for_OF_device(node); - max = min(max, hose->dma_window_base_cur + - hose->dma_window_size); + ret = fsl_add_bridge(node, fsl_pci_primary == node); + if (ret == 0) { + hose = pci_find_hose_for_OF_device(node); + max = min(max, hose->dma_window_base_cur + + hose->dma_window_size); + } } } |