From: Dirk Eibach dirk.eibach@gdsys.cc
Signed-off-by: Dirk Eibach dirk.eibach@gdsys.cc --- Changes in v4: None Changes in v3: - adapt to "powerpc/ppc4xx: Use generic accessor functions for gdsys FPGA"
Changes in v2: - move cmd_fpgad to common and fix whitespace issues - update email account
common/Makefile | 1 + common/cmd_fpgad.c | 100 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 101 insertions(+) create mode 100644 common/cmd_fpgad.c
diff --git a/common/Makefile b/common/Makefile index 3ba4316..b1a2093 100644 --- a/common/Makefile +++ b/common/Makefile @@ -110,6 +110,7 @@ COBJS-$(CONFIG_CMD_FLASH) += cmd_flash.o ifdef CONFIG_FPGA COBJS-$(CONFIG_CMD_FPGA) += cmd_fpga.o endif +COBJS-$(CONFIG_CMD_FPGAD) += cmd_fpgad.o COBJS-$(CONFIG_CMD_FS_GENERIC) += cmd_fs.o COBJS-$(CONFIG_CMD_FUSE) += cmd_fuse.o COBJS-$(CONFIG_CMD_GETTIME) += cmd_gettime.o diff --git a/common/cmd_fpgad.c b/common/cmd_fpgad.c new file mode 100644 index 0000000..07536ff --- /dev/null +++ b/common/cmd_fpgad.c @@ -0,0 +1,100 @@ +/* + * (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. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.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)]; + + /* + * 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); + } + + /* Print the lines. */ + for (k = 0; k < DISP_LINE_LEN / sizeof(u16); ++k) + fpga_get_reg(fpga, (u16 *)fpga_ptr[fpga] + k, k * sizeof(u16), + &linebuf[k]); + print_buffer(addr, (void *)linebuf, sizeof(u16), + length, DISP_LINE_LEN / sizeof(u16)); + addr += sizeof(u16)*length; + + 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]" +);