blob: 1b25ed87475dd9aa7b0023ca0ff1822f2ffa1742 [file] [log] [blame]
Dirk Eibach869b5502013-06-26 16:04:28 +02001/*
2 * (C) Copyright 2013
3 * Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
4 *
5 * based on cmd_mem.c
6 * (C) Copyright 2000
7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 *
Tom Rini9fab4bf2013-07-26 15:32:59 -04009 * SPDX-License-Identifier: GPL-2.0+
Dirk Eibach869b5502013-06-26 16:04:28 +020010 */
11
12#include <common.h>
13#include <command.h>
14
15#include <gdsys_fpga.h>
16
17static uint dp_last_fpga;
18static uint dp_last_addr;
19static uint dp_last_length = 0x40;
20
21/*
22 * FPGA Memory Display
23 *
24 * Syntax:
25 * fpgad {fpga} {addr} {len}
26 */
27#define DISP_LINE_LEN 16
28int do_fpga_md(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
29{
30 unsigned int k;
31 unsigned int fpga;
32 ulong addr, length;
33 int rc = 0;
34 u16 linebuf[DISP_LINE_LEN/sizeof(u16)];
35
36 /*
37 * We use the last specified parameters, unless new ones are
38 * entered.
39 */
40 fpga = dp_last_fpga;
41 addr = dp_last_addr;
42 length = dp_last_length;
43
44 if (argc < 3)
45 return CMD_RET_USAGE;
46
47 if ((flag & CMD_FLAG_REPEAT) == 0) {
48 /*
49 * FPGA is specified since argc > 2
50 */
51 fpga = simple_strtoul(argv[1], NULL, 16);
52
53 /*
54 * Address is specified since argc > 2
55 */
56 addr = simple_strtoul(argv[2], NULL, 16);
57
58 /*
59 * If another parameter, it is the length to display.
60 * Length is the number of objects, not number of bytes.
61 */
62 if (argc > 3)
63 length = simple_strtoul(argv[3], NULL, 16);
64 }
65
66 /* Print the lines. */
67 for (k = 0; k < DISP_LINE_LEN / sizeof(u16); ++k)
68 fpga_get_reg(fpga, (u16 *)fpga_ptr[fpga] + k, k * sizeof(u16),
69 &linebuf[k]);
70 print_buffer(addr, (void *)linebuf, sizeof(u16),
71 length, DISP_LINE_LEN / sizeof(u16));
72 addr += sizeof(u16)*length;
73
74 dp_last_fpga = fpga;
75 dp_last_addr = addr;
76 dp_last_length = length;
77 return rc;
78}
79
80U_BOOT_CMD(
81 fpgad, 4, 1, do_fpga_md,
82 "fpga register display",
83 "fpga address [# of objects]"
84);