[J-u-boot.git] / common / cmd_fpgad.c

/*
 * (C) Copyright 2013
 * Dirk Eibach,  Guntermann & Drunck GmbH, [email protected]
 *
 * based on cmd_mem.c
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, [email protected].
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#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]"
);
Commit	Line	Data
869b550e DE	1	/*
	2	* (C) Copyright 2013
	3	* Dirk Eibach, Guntermann & Drunck GmbH, [email protected]
	4	*
	5	* based on cmd_mem.c
	6	* (C) Copyright 2000
	7	* Wolfgang Denk, DENX Software Engineering, [email protected].
	8	*
9fab4bf4	9	* SPDX-License-Identifier: GPL-2.0+
869b550e DE	10	*/
	11
	12	#include <common.h>
	13	#include <command.h>
	14
	15	#include <gdsys_fpga.h>
	16
	17	static uint dp_last_fpga;
	18	static uint dp_last_addr;
	19	static uint dp_last_length = 0x40;
	20
	21	/*
	22	* FPGA Memory Display
	23	*
	24	* Syntax:
	25	* fpgad {fpga} {addr} {len}
	26	*/
	27	#define DISP_LINE_LEN 16
	28	int do_fpga_md(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	29	{
	30	unsigned int k;
	31	unsigned int fpga;
	32	ulong addr, length;
	33	int rc = 0;
	34	u16 linebuf[DISP_LINE_LEN/sizeof(u16)];
	35
	36	/*
	37	* We use the last specified parameters, unless new ones are
	38	* entered.
	39	*/
	40	fpga = dp_last_fpga;
	41	addr = dp_last_addr;
	42	length = dp_last_length;
	43
	44	if (argc < 3)
	45	return CMD_RET_USAGE;
	46
	47	if ((flag & CMD_FLAG_REPEAT) == 0) {
	48	/*
	49	* FPGA is specified since argc > 2
	50	*/
	51	fpga = simple_strtoul(argv[1], NULL, 16);
	52
	53	/*
	54	* Address is specified since argc > 2
	55	*/
	56	addr = simple_strtoul(argv[2], NULL, 16);
	57
	58	/*
	59	* If another parameter, it is the length to display.
	60	* Length is the number of objects, not number of bytes.
	61	*/
	62	if (argc > 3)
	63	length = simple_strtoul(argv[3], NULL, 16);
	64	}
	65
	66	/* Print the lines. */
	67	for (k = 0; k < DISP_LINE_LEN / sizeof(u16); ++k)
	68	fpga_get_reg(fpga, (u16 )fpga_ptr[fpga] + k, k sizeof(u16),
	69	&linebuf[k]);
	70	print_buffer(addr, (void *)linebuf, sizeof(u16),
	71	length, DISP_LINE_LEN / sizeof(u16));
	72	addr += sizeof(u16)*length;
	73
74	dp_last_fpga = fpga;
75	dp_last_addr = addr;
76	dp_last_length = length;
77	return rc;
78	}
79
80	U_BOOT_CMD(
81	fpgad, 4, 1, do_fpga_md,
82	"fpga register display",
83	"fpga address [# of objects]"
84	);