target/linux/gemini/patches-4.4/140-arm-gemini-add-pci-support.patch

   1 --- a/arch/arm/Kconfig
   2 +++ b/arch/arm/Kconfig
   3 @@ -399,6 +399,7 @@ config ARCH_GEMINI
   4         select CLKSRC_MMIO
   5         select CPU_FA526
   6         select GENERIC_CLOCKEVENTS
   7 +       select MIGHT_HAVE_PCI
   8         help
   9           Support for the Cortina Systems Gemini family SoCs
  10
  11 --- a/arch/arm/mach-gemini/include/mach/hardware.h
  12 +++ b/arch/arm/mach-gemini/include/mach/hardware.h
  13 @@ -68,4 +68,9 @@
  14   */
  15  #define IO_ADDRESS(x)  IOMEM((((x) & 0xFFF00000) >> 4) | ((x) & 0x000FFFFF) | 0xF0000000)
  16
  17 +/*
  18 + * PCI subsystem macros
  19 + */
  20 +#define pcibios_assign_all_busses()    1
  21 +
  22  #endif
  23 --- a/arch/arm/mach-gemini/include/mach/irqs.h
  24 +++ b/arch/arm/mach-gemini/include/mach/irqs.h
  25 @@ -43,11 +43,14 @@
  26
  27  #define NORMAL_IRQ_NUM 32
  28
  29 -#define GPIO_IRQ_BASE  NORMAL_IRQ_NUM
  30 +#define PCI_IRQ_BASE   NORMAL_IRQ_NUM
  31 +#define PCI_IRQ_NUM    4
  32 +
  33 +#define GPIO_IRQ_BASE  (NORMAL_IRQ_NUM + PCI_IRQ_NUM)
  34  #define GPIO_IRQ_NUM   (3 * 32)
  35
  36  #define ARCH_TIMER_IRQ IRQ_TIMER2
  37
  38 -#define NR_IRQS                (NORMAL_IRQ_NUM + GPIO_IRQ_NUM)
  39 +#define NR_IRQS                (NORMAL_IRQ_NUM + PCI_IRQ_NUM + GPIO_IRQ_NUM)
  40
  41  #endif /* __MACH_IRQS_H__ */
  42 --- a/arch/arm/mach-gemini/Makefile
  43 +++ b/arch/arm/mach-gemini/Makefile
  44 @@ -6,6 +6,8 @@
  45
  46  obj-y                  := irq.o mm.o time.o devices.o gpio.o idle.o reset.o
  47
  48 +obj-$(CONFIG_PCI)      += pci.o
  49 +
  50  # Board-specific support
  51  obj-$(CONFIG_MACH_NAS4220B)    += board-nas4220b.o
  52  obj-$(CONFIG_MACH_RUT100)      += board-rut1xx.o
  53 --- a/arch/arm/mach-gemini/mm.c
  54 +++ b/arch/arm/mach-gemini/mm.c
  55 @@ -59,6 +59,11 @@ static struct map_desc gemini_io_desc[]
  56                 .length         = SZ_512K,
  57                 .type           = MT_DEVICE,
  58         }, {
  59 +               .virtual        = (unsigned long)IO_ADDRESS(GEMINI_PCI_IO_BASE),
  60 +               .pfn            = __phys_to_pfn(GEMINI_PCI_IO_BASE),
  61 +               .length         = SZ_512K,
  62 +               .type           = MT_DEVICE,
  63 +       }, {
  64                 .virtual        = (unsigned long)IO_ADDRESS(GEMINI_FLASH_CTRL_BASE),
  65                 .pfn            = __phys_to_pfn(GEMINI_FLASH_CTRL_BASE),
  66                 .length         = SZ_512K,