MIPS: ath79: add support for the PCI host controller of the AR71XX SoCs

The Atheros AR71XX SoCs have a built-in PCI Host Controller.
This patch adds a driver for that, and modifies the relevant
files in order to allow to register the PCI controller from
board specific setup.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3498/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-ath79/pci.h b/arch/mips/include/asm/mach-ath79/pci.h
index 2eb01815d54e..b12b0870b7ed 100644
--- a/arch/mips/include/asm/mach-ath79/pci.h
+++ b/arch/mips/include/asm/mach-ath79/pci.h
@@ -11,6 +11,12 @@
 #ifndef __ASM_MACH_ATH79_PCI_H
 #define __ASM_MACH_ATH79_PCI_H
 
+#if defined(CONFIG_PCI) && defined(CONFIG_SOC_AR71XX)
+int ar71xx_pcibios_init(void);
+#else
+static inline int ar71xx_pcibios_init(void) { return 0; }
+#endif
+
 #if defined(CONFIG_PCI) && defined(CONFIG_SOC_AR724X)
 int ar724x_pcibios_init(int irq);
 #else