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>
diff --git a/arch/x86/cpu/pci.c b/arch/x86/cpu/pci.c
index e399388..f3492c3 100644
--- a/arch/x86/cpu/pci.c
+++ b/arch/x86/cpu/pci.c
@@ -33,6 +33,16 @@
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 @@
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)
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 98817aa..ac1a808 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -34,6 +34,9 @@
*/
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