1 files changed, 66 insertions, 0 deletions
diff --git a/target/linux/gemini/patches-4.4/140-arm-gemini-add-pci-support.patch b/target/linux/gemini/patches-4.4/140-arm-gemini-add-pci-support.patch
new file mode 100644
index 0000000000..d17b1a1f8e
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/140-arm-gemini-add-pci-support.patch
@@ -0,0 +1,66 @@
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -399,6 +399,7 @@ config ARCH_GEMINI
+ 	select CLKSRC_MMIO
+ 	select CPU_FA526
+ 	select GENERIC_CLOCKEVENTS
++	select MIGHT_HAVE_PCI
+ 	help
+ 	  Support for the Cortina Systems Gemini family SoCs
+ 
+--- a/arch/arm/mach-gemini/include/mach/hardware.h
++++ b/arch/arm/mach-gemini/include/mach/hardware.h
+@@ -68,4 +68,9 @@
+  */
+ #define IO_ADDRESS(x)	IOMEM((((x) & 0xFFF00000) >> 4) | ((x) & 0x000FFFFF) | 0xF0000000)
+ 
++/*
++ * PCI subsystem macros
++ */
++#define pcibios_assign_all_busses()	1
++
+ #endif
+--- a/arch/arm/mach-gemini/include/mach/irqs.h
++++ b/arch/arm/mach-gemini/include/mach/irqs.h
+@@ -43,11 +43,14 @@
+ 
+ #define NORMAL_IRQ_NUM	32
+ 
+-#define GPIO_IRQ_BASE	NORMAL_IRQ_NUM
++#define PCI_IRQ_BASE	NORMAL_IRQ_NUM
++#define PCI_IRQ_NUM	4
++
++#define GPIO_IRQ_BASE	(NORMAL_IRQ_NUM + PCI_IRQ_NUM)
+ #define GPIO_IRQ_NUM	(3 * 32)
+ 
+ #define ARCH_TIMER_IRQ	IRQ_TIMER2
+ 
+-#define NR_IRQS		(NORMAL_IRQ_NUM + GPIO_IRQ_NUM)
++#define NR_IRQS		(NORMAL_IRQ_NUM + PCI_IRQ_NUM + GPIO_IRQ_NUM)
+ 
+ #endif /* __MACH_IRQS_H__ */
+--- a/arch/arm/mach-gemini/Makefile
++++ b/arch/arm/mach-gemini/Makefile
+@@ -6,6 +6,8 @@
+ 
+ obj-y			:= irq.o mm.o time.o devices.o gpio.o idle.o reset.o
+ 
++obj-$(CONFIG_PCI)	+= pci.o
++
+ # Board-specific support
+ obj-$(CONFIG_MACH_NAS4220B)	+= board-nas4220b.o
+ obj-$(CONFIG_MACH_RUT100)	+= board-rut1xx.o
+--- a/arch/arm/mach-gemini/mm.c
++++ b/arch/arm/mach-gemini/mm.c
+@@ -59,6 +59,11 @@ static struct map_desc gemini_io_desc[]
+ 		.length		= SZ_512K,
+ 		.type 		= MT_DEVICE,
+ 	}, {
++		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_PCI_IO_BASE),
++		.pfn		= __phys_to_pfn(GEMINI_PCI_IO_BASE),
++		.length		= SZ_512K,
++		.type 		= MT_DEVICE,
++	}, {
+ 		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_FLASH_CTRL_BASE),
+ 		.pfn		= __phys_to_pfn(GEMINI_FLASH_CTRL_BASE),
+ 		.length		= SZ_512K,