board/matrix_vision/mvsmr/fpga.c

   1 /*
   2  * (C) Copyright 2002
   3  * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
   4  * Keith Outwater, keith_outwater@mvis.com.
   5  *
   6  * (C) Copyright 2010
   7  * Andre Schwarz, Matrix Vision GmbH, andre.schwarz@matrix-vision.de
   8  *
   9  * SPDX-License-Identifier:     GPL-2.0+
  10  */
  11
  12 #include <common.h>
  13 #include <spartan3.h>
  14 #include <command.h>
  15 #include <asm/io.h>
  16 #include "fpga.h"
  17 #include "mvsmr.h"
  18
  19 Xilinx_Spartan3_Slave_Serial_fns fpga_fns = {
  20         fpga_pre_config_fn,
  21         fpga_pgm_fn,
  22         fpga_clk_fn,
  23         fpga_init_fn,
  24         fpga_done_fn,
  25         fpga_wr_fn,
  26         0
  27 };
  28
  29 Xilinx_desc spartan3 = {
  30         Xilinx_Spartan2,
  31         slave_serial,
  32         XILINX_XC3S200_SIZE,
  33         (void *) &fpga_fns,
  34         0,
  35 };
  36
  37 DECLARE_GLOBAL_DATA_PTR;
  38
  39 int mvsmr_init_fpga(void)
  40 {
  41         fpga_init();
  42         fpga_add(fpga_xilinx, &spartan3);
  43
  44         return 1;
  45 }
  46
  47 int fpga_init_fn(int cookie)
  48 {
  49         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
  50
  51         if (in_be32(&gpio->simple_ival) & FPGA_CONFIG)
  52                 return 0;
  53
  54         return 1;
  55 }
  56
  57 int fpga_done_fn(int cookie)
  58 {
  59         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
  60         int result = 0;
  61
  62         udelay(10);
  63         if (in_be32(&gpio->simple_ival) & FPGA_DONE)
  64                 result = 1;
  65
  66         return result;
  67 }
  68
  69 int fpga_pgm_fn(int assert, int flush, int cookie)
  70 {
  71         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
  72
  73         if (!assert)
  74                 setbits_8(&gpio->sint_dvo, FPGA_STATUS);
  75         else
  76                 clrbits_8(&gpio->sint_dvo, FPGA_STATUS);
  77
  78         return assert;
  79 }
  80
  81 int fpga_clk_fn(int assert_clk, int flush, int cookie)
  82 {
  83         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
  84
  85         if (assert_clk)
  86                 setbits_be32(&gpio->simple_dvo, FPGA_CCLK);
  87         else
  88                 clrbits_be32(&gpio->simple_dvo, FPGA_CCLK);
  89
  90         return assert_clk;
  91 }
  92
  93 int fpga_wr_fn(int assert_write, int flush, int cookie)
  94 {
  95         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
  96
  97         if (assert_write)
  98                 setbits_be32(&gpio->simple_dvo, FPGA_DIN);
  99         else
 100                 clrbits_be32(&gpio->simple_dvo, FPGA_DIN);
 101
 102         return assert_write;
 103 }
 104
 105 int fpga_pre_config_fn(int cookie)
 106 {
 107         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
 108
 109         setbits_8(&gpio->sint_dvo, FPGA_STATUS);
 110
 111         return 0;
 112 }