[ARM] Kirkwood: enable PCIe before reading device ID register
PCIe may have been disabled (by kirkwood_clock_gate)
if this kernel was started by kexec. Make sure PCIe
is enabled before attempting to access the device ID
register, otherwise the system will hang.
Signed-off-by: Eric Cooper <ecc@cmu.edu>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index 95bb0a7..a35b862 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -32,6 +32,7 @@
extern struct mbus_dram_target_info kirkwood_mbus_dram_info;
void kirkwood_setup_cpu_mbus(void);
+void kirkwood_enable_pcie(void);
void kirkwood_pcie_id(u32 *dev, u32 *rev);
void kirkwood_ehci_init(void);