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x86: pci: Add handlers before and after a PCI hose scan 

Some boards will want to do some setup before and after a PCI hose
is scanned.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2014-11-14 18:18:28 -07:00
parent a2f5d091cc
commit e94ea6f656
2 changed files with 15 additions and 0 deletions
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12
arch/x86/cpu/pci.c
View File

@ -33,6 +33,16 @@ int pci_early_init_hose(struct pci_controller **hosep)
return 0;
}
__weak int board_pci_pre_scan(struct pci_controller *hose)
{
return 0;
}
__weak int board_pci_post_scan(struct pci_controller *hose)
{
return 0;
}
void pci_init_board(void)
{
struct pci_controller *hose = &x86_hose;
@ -44,7 +54,9 @@ void pci_init_board(void)
pci_setup_type1(hose);
pci_register_hose(hose);
board_pci_pre_scan(hose);
hose->last_busno = pci_hose_scan(hose);
board_pci_post_scan(hose);
}
static struct pci_controller *get_hose(void)

3
arch/x86/include/asm/pci.h
View File

@ -34,6 +34,9 @@ void board_pci_setup_hose(struct pci_controller *hose);
*/
int pci_early_init_hose(struct pci_controller **hosep);
int board_pci_pre_scan(struct pci_controller *hose);
int board_pci_post_scan(struct pci_controller *hose);
/*
* Simple PCI access routines - these work from either the early PCI hose
* or the 'real' one, created after U-Boot has memory available