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[karo-tx-uboot.git] / 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 }