[U-Boot] [PATCH 12/33] x86: pci: Add handlers before and after a PCI hose scan
Simon Glass
sjg at chromium.org
Wed Nov 12 01:18:00 CET 2014
Some boards will want to do some setup before and after a PCI hose
is scanned.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
arch/x86/cpu/pci.c | 14 +++++++++++++-
arch/x86/include/asm/pci.h | 3 +++
2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/arch/x86/cpu/pci.c b/arch/x86/cpu/pci.c
index 36057c6..43a4cb9 100644
--- a/arch/x86/cpu/pci.c
+++ b/arch/x86/cpu/pci.c
@@ -32,6 +32,16 @@ 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;
@@ -42,7 +52,9 @@ void pci_init_board(void)
board_pci_setup_hose(hose);
pci_register_hose(hose);
- pci_hose_scan(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 @@ 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
--
2.1.0.rc2.206.gedb03e5
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