101 lines
2.0 KiB
C
101 lines
2.0 KiB
C
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// 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 <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(cmd_tbl_t *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 = simple_strtoul(argv[1], NULL, 16);
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/*
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* Address is specified since argc > 2
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*/
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addr = simple_strtoul(argv[2], NULL, 16);
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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 = simple_strtoul(argv[3], NULL, 16);
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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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