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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
101 lines
2 KiB
C
101 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2013
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* Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
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*
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* based on cmd_mem.c
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <command.h>
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#include <console.h>
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#include <display_options.h>
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#include <gdsys_fpga.h>
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static uint dp_last_fpga;
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static uint dp_last_addr;
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static uint dp_last_length = 0x40;
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/*
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* FPGA Memory Display
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*
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* Syntax:
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* fpgad {fpga} {addr} {len}
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*/
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#define DISP_LINE_LEN 16
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int do_fpga_md(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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unsigned int k;
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unsigned int fpga;
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ulong addr, length;
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int rc = 0;
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u16 linebuf[DISP_LINE_LEN/sizeof(u16)];
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ulong nbytes;
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/*
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* We use the last specified parameters, unless new ones are
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* entered.
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*/
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fpga = dp_last_fpga;
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addr = dp_last_addr;
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length = dp_last_length;
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if (argc < 3)
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return CMD_RET_USAGE;
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if ((flag & CMD_FLAG_REPEAT) == 0) {
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/*
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* FPGA is specified since argc > 2
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*/
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fpga = hextoul(argv[1], NULL);
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/*
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* Address is specified since argc > 2
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*/
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addr = hextoul(argv[2], NULL);
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/*
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* If another parameter, it is the length to display.
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* Length is the number of objects, not number of bytes.
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*/
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if (argc > 3)
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length = hextoul(argv[3], NULL);
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}
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nbytes = length * sizeof(u16);
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do {
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ulong linebytes = (nbytes > DISP_LINE_LEN) ?
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DISP_LINE_LEN : nbytes;
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for (k = 0; k < linebytes / sizeof(u16); ++k)
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fpga_get_reg(fpga,
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(u16 *)fpga_ptr[fpga] + addr
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/ sizeof(u16) + k,
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addr + k * sizeof(u16),
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&linebuf[k]);
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print_buffer(addr, (void *)linebuf, sizeof(u16),
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linebytes / sizeof(u16),
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DISP_LINE_LEN / sizeof(u16));
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nbytes -= linebytes;
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addr += linebytes;
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if (ctrlc()) {
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rc = 1;
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break;
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}
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} while (nbytes > 0);
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dp_last_fpga = fpga;
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dp_last_addr = addr;
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dp_last_length = length;
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return rc;
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}
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U_BOOT_CMD(
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fpgad, 4, 1, do_fpga_md,
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"fpga register display",
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"fpga address [# of objects]"
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);
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