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dm: Sort the uclass IDs after the tegra/PMIC addition
[u-boot] / common / cmd_fpgad.c
1 /*
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  *
9  * SPDX-License-Identifier:     GPL-2.0+
10  */
11
12 #include <common.h>
13 #include <command.h>
14
15 #include <gdsys_fpga.h>
16
17 static uint     dp_last_fpga;
18 static uint     dp_last_addr;
19 static 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
28 int 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         ulong nbytes;
36
37         /*
38          * We use the last specified parameters, unless new ones are
39          * entered.
40          */
41         fpga = dp_last_fpga;
42         addr = dp_last_addr;
43         length = dp_last_length;
44
45         if (argc < 3)
46                 return CMD_RET_USAGE;
47
48         if ((flag & CMD_FLAG_REPEAT) == 0) {
49                 /*
50                  * FPGA is specified since argc > 2
51                  */
52                 fpga = simple_strtoul(argv[1], NULL, 16);
53
54                 /*
55                  * Address is specified since argc > 2
56                  */
57                 addr = simple_strtoul(argv[2], NULL, 16);
58
59                 /*
60                  * If another parameter, it is the length to display.
61                  * Length is the number of objects, not number of bytes.
62                  */
63                 if (argc > 3)
64                         length = simple_strtoul(argv[3], NULL, 16);
65         }
66
67         nbytes = length * sizeof(u16);
68         do {
69                 ulong linebytes = (nbytes > DISP_LINE_LEN) ?
70                                   DISP_LINE_LEN : nbytes;
71
72                 for (k = 0; k < linebytes / sizeof(u16); ++k)
73                         fpga_get_reg(fpga,
74                                      (u16 *)fpga_ptr[fpga] + addr
75                                      / sizeof(u16) + k,
76                                      addr + k * sizeof(u16),
77                                      &linebuf[k]);
78                 print_buffer(addr, (void *)linebuf, sizeof(u16),
79                              linebytes / sizeof(u16),
80                              DISP_LINE_LEN / sizeof(u16));
81
82                 nbytes -= linebytes;
83                 addr += linebytes;
84                 if (ctrlc()) {
85                         rc = 1;
86                         break;
87                 }
88         } while (nbytes > 0);
89
90         dp_last_fpga = fpga;
91         dp_last_addr = addr;
92         dp_last_length = length;
93         return rc;
94 }
95
96 U_BOOT_CMD(
97         fpgad,  4,      1,      do_fpga_md,
98         "fpga register display",
99         "fpga address [# of objects]"
100 );