view target-utils/libcommon/abbcmd.c @ 992:a7b0b426f9ca

target-utils: boot ROM UART autodetection revamped The new implementation should work with both the familiar Calypso C035 boot ROM version found in our regular targets as well as the older Calypso F741979B version found on the vintage D-Sample board.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 30 Dec 2015 21:28:41 +0000
parents bb4814eb51e4
children
line wrap: on
line source

/*
 * abbr pg reg		-- read ABB register
 * abbw pg reg val	-- write ABB register
 */

#include <sys/types.h>
#include "types.h"
#include "abbdefs.h"

extern u16 abb_reg_read();
extern void abb_reg_write();

void
cmd_abbr(argbulk)
	char *argbulk;
{
	char *argv[3];
	u32 pg, reg, val;

	if (parse_args(argbulk, 2, 2, argv, 0) < 0)
		return;
	pg = strtoul(argv[0], 0, 0);
	reg = strtoul(argv[1], 0, 0);
	if (pg > 1 || reg > 31) {
		printf("ERROR: argument(s) out of range\n");
		return;
	}
	abb_init();
	val = abb_reg_read(PAGE(pg) | reg);
	printf("%03X\n", val);
}

void
cmd_abbw(argbulk)
	char *argbulk;
{
	char *argv[4];
	u32 pg, reg, val;

	if (parse_args(argbulk, 3, 3, argv, 0) < 0)
		return;
	pg = strtoul(argv[0], 0, 0);
	reg = strtoul(argv[1], 0, 0);
	val = strtoul(argv[2], 0, 16);
	if (pg > 1 || reg > 31 || val > 0x3FF) {
		printf("ERROR: argument(s) out of range\n");
		return;
	}
	abb_init();
	abb_reg_write(PAGE(pg) | reg, val);
}