u-boot/cmd/fpgad.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

100 lines
2 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(cmd_tbl_t *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]"
);