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git.ipfire.org Git - thirdparty/u-boot.git/blob - cmd/fpgad.c
1 // SPDX-License-Identifier: GPL-2.0+
4 * Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
8 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
15 #include <gdsys_fpga.h>
17 static uint dp_last_fpga
;
18 static uint dp_last_addr
;
19 static uint dp_last_length
= 0x40;
25 * fpgad {fpga} {addr} {len}
27 #define DISP_LINE_LEN 16
28 int do_fpga_md(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
34 u16 linebuf
[DISP_LINE_LEN
/sizeof(u16
)];
38 * We use the last specified parameters, unless new ones are
43 length
= dp_last_length
;
48 if ((flag
& CMD_FLAG_REPEAT
) == 0) {
50 * FPGA is specified since argc > 2
52 fpga
= simple_strtoul(argv
[1], NULL
, 16);
55 * Address is specified since argc > 2
57 addr
= simple_strtoul(argv
[2], NULL
, 16);
60 * If another parameter, it is the length to display.
61 * Length is the number of objects, not number of bytes.
64 length
= simple_strtoul(argv
[3], NULL
, 16);
67 nbytes
= length
* sizeof(u16
);
69 ulong linebytes
= (nbytes
> DISP_LINE_LEN
) ?
70 DISP_LINE_LEN
: nbytes
;
72 for (k
= 0; k
< linebytes
/ sizeof(u16
); ++k
)
74 (u16
*)fpga_ptr
[fpga
] + addr
76 addr
+ k
* sizeof(u16
),
78 print_buffer(addr
, (void *)linebuf
, sizeof(u16
),
79 linebytes
/ sizeof(u16
),
80 DISP_LINE_LEN
/ sizeof(u16
));
92 dp_last_length
= length
;
97 fpgad
, 4, 1, do_fpga_md
,
98 "fpga register display",
99 "fpga address [# of objects]"