release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-orion5x/mpp.h

   1 #ifndef __ARCH_ORION5X_MPP_H
   2 #define __ARCH_ORION5X_MPP_H
   3
   4 enum orion5x_mpp_type {
   5         /*
   6          * This MPP is unused.
   7          */
   8         MPP_UNUSED,
   9
  10         /*
  11          * This MPP pin is used as a generic GPIO pin.  Valid for
  12          * MPPs 0-15 and device bus data pins 16-31.  On 5182, also
  13          * valid for MPPs 16-19.
  14          */
  15         MPP_GPIO,
  16
  17         /*
  18          * This MPP is used as PCIe_RST_OUTn pin.  Valid for
  19          * MPP 0 only.
  20          */
  21         MPP_PCIE_RST_OUTn,
  22
  23         /*
  24          * This MPP is used as PCI arbiter pin (REQn/GNTn).
  25          * Valid for MPPs 0-7 only.
  26          */
  27         MPP_PCI_ARB,
  28
  29         /*
  30          * This MPP is used as PCI_PMEn pin.  Valid for MPP 2 only.
  31          */
  32         MPP_PCI_PMEn,
  33
  34         /*
  35          * This MPP is used as GigE half-duplex (COL, CRS) or GMII
  36          * (RXERR, CRS, TXERR, TXD[7:4], RXD[7:4]) pin.  Valid for
  37          * MPPs 8-19 only.
  38          */
  39         MPP_GIGE,
  40
  41         /*
  42          * This MPP is used as NAND REn/WEn pin.  Valid for MPPs
  43          * 4-7 and 12-17 only, and only on the 5181l/5182/5281.
  44          */
  45         MPP_NAND,
  46
  47         /*
  48          * This MPP is used as a PCI clock output pin.  Valid for
  49          * MPPs 6-7 only, and only on the 5181l.
  50          */
  51         MPP_PCI_CLK,
  52
  53         /*
  54          * This MPP is used as a SATA presence/activity LED.
  55          * Valid for MPPs 4-7 and 12-15 only, and only on the 5182.
  56          */
  57         MPP_SATA_LED,
  58
  59         /*
  60          * This MPP is used as UART1 RXD/TXD/CTSn/RTSn pin.
  61          * Valid for MPPs 16-19 only.
  62          */
  63         MPP_UART,
  64 };
  65
  66 struct orion5x_mpp_mode {
  67         int                     mpp;
  68         enum orion5x_mpp_type   type;
  69 };
  70
  71 void orion5x_mpp_conf(struct orion5x_mpp_mode *mode);
  72
  73
  74 #endif