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git.ipfire.org Git - people/ms/u-boot.git/blob - cmd/fpgad.c
3 * Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
9 * SPDX-License-Identifier: GPL-2.0+
16 #include <gdsys_fpga.h>
18 static uint dp_last_fpga
;
19 static uint dp_last_addr
;
20 static uint dp_last_length
= 0x40;
26 * fpgad {fpga} {addr} {len}
28 #define DISP_LINE_LEN 16
29 int do_fpga_md(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
35 u16 linebuf
[DISP_LINE_LEN
/sizeof(u16
)];
39 * We use the last specified parameters, unless new ones are
44 length
= dp_last_length
;
49 if ((flag
& CMD_FLAG_REPEAT
) == 0) {
51 * FPGA is specified since argc > 2
53 fpga
= simple_strtoul(argv
[1], NULL
, 16);
56 * Address is specified since argc > 2
58 addr
= simple_strtoul(argv
[2], NULL
, 16);
61 * If another parameter, it is the length to display.
62 * Length is the number of objects, not number of bytes.
65 length
= simple_strtoul(argv
[3], NULL
, 16);
68 nbytes
= length
* sizeof(u16
);
70 ulong linebytes
= (nbytes
> DISP_LINE_LEN
) ?
71 DISP_LINE_LEN
: nbytes
;
73 for (k
= 0; k
< linebytes
/ sizeof(u16
); ++k
)
75 (u16
*)fpga_ptr
[fpga
] + addr
77 addr
+ k
* sizeof(u16
),
79 print_buffer(addr
, (void *)linebuf
, sizeof(u16
),
80 linebytes
/ sizeof(u16
),
81 DISP_LINE_LEN
/ sizeof(u16
));
93 dp_last_length
= length
;
98 fpgad
, 4, 1, do_fpga_md
,
99 "fpga register display",
100 "fpga address [# of objects]"