view target-utils/pirexplore/flashid.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 9539929b3414
children
line wrap: on
line source

#include "types.h"

void
cmd_flashid(argbulk)
	char *argbulk;
{
	char *argv[2];
	u32 base_addr;

	if (parse_args(argbulk, 1, 1, argv, 0) < 0)
		return;
	if (argv[0][0] == '1' && !argv[0][1])
		base_addr = 0x03000000;
	else if (argv[0][0] == '2' && !argv[0][1])
		base_addr = 0x02000000;
	else {
		printf("ERROR: argument must be 1 or 2\n");
		return;
	}
	printf("Base addr: %08X\n", base_addr);
	*(volatile u16 *)(base_addr + 0xAAA) = 0xAA;
	*(volatile u16 *)(base_addr + 0x554) = 0x55;
	*(volatile u16 *)(base_addr + 0xAAA) = 0x90;
	printf("offset 00: %04X\n", *(volatile u16 *)(base_addr + 0x00));
	printf("offset 02: %04X\n", *(volatile u16 *)(base_addr + 0x02));
	printf("offset 1C: %04X\n", *(volatile u16 *)(base_addr + 0x1C));
	printf("offset 1E: %04X\n", *(volatile u16 *)(base_addr + 0x1E));
	*(volatile u16 *)(base_addr + 0xAAA) = 0xF0;
}