101 lines
2.0 KiB
C
101 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2013
|
|
* Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
|
|
*
|
|
* based on cmd_mem.c
|
|
* (C) Copyright 2000
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <console.h>
|
|
|
|
#include <gdsys_fpga.h>
|
|
|
|
static uint dp_last_fpga;
|
|
static uint dp_last_addr;
|
|
static uint dp_last_length = 0x40;
|
|
|
|
/*
|
|
* FPGA Memory Display
|
|
*
|
|
* Syntax:
|
|
* fpgad {fpga} {addr} {len}
|
|
*/
|
|
#define DISP_LINE_LEN 16
|
|
int do_fpga_md(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
unsigned int k;
|
|
unsigned int fpga;
|
|
ulong addr, length;
|
|
int rc = 0;
|
|
u16 linebuf[DISP_LINE_LEN/sizeof(u16)];
|
|
ulong nbytes;
|
|
|
|
/*
|
|
* We use the last specified parameters, unless new ones are
|
|
* entered.
|
|
*/
|
|
fpga = dp_last_fpga;
|
|
addr = dp_last_addr;
|
|
length = dp_last_length;
|
|
|
|
if (argc < 3)
|
|
return CMD_RET_USAGE;
|
|
|
|
if ((flag & CMD_FLAG_REPEAT) == 0) {
|
|
/*
|
|
* FPGA is specified since argc > 2
|
|
*/
|
|
fpga = simple_strtoul(argv[1], NULL, 16);
|
|
|
|
/*
|
|
* Address is specified since argc > 2
|
|
*/
|
|
addr = simple_strtoul(argv[2], NULL, 16);
|
|
|
|
/*
|
|
* If another parameter, it is the length to display.
|
|
* Length is the number of objects, not number of bytes.
|
|
*/
|
|
if (argc > 3)
|
|
length = simple_strtoul(argv[3], NULL, 16);
|
|
}
|
|
|
|
nbytes = length * sizeof(u16);
|
|
do {
|
|
ulong linebytes = (nbytes > DISP_LINE_LEN) ?
|
|
DISP_LINE_LEN : nbytes;
|
|
|
|
for (k = 0; k < linebytes / sizeof(u16); ++k)
|
|
fpga_get_reg(fpga,
|
|
(u16 *)fpga_ptr[fpga] + addr
|
|
/ sizeof(u16) + k,
|
|
addr + k * sizeof(u16),
|
|
&linebuf[k]);
|
|
print_buffer(addr, (void *)linebuf, sizeof(u16),
|
|
linebytes / sizeof(u16),
|
|
DISP_LINE_LEN / sizeof(u16));
|
|
|
|
nbytes -= linebytes;
|
|
addr += linebytes;
|
|
if (ctrlc()) {
|
|
rc = 1;
|
|
break;
|
|
}
|
|
} while (nbytes > 0);
|
|
|
|
dp_last_fpga = fpga;
|
|
dp_last_addr = addr;
|
|
dp_last_length = length;
|
|
return rc;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
fpgad, 4, 1, do_fpga_md,
|
|
"fpga register display",
|
|
"fpga address [# of objects]"
|
|
);
|