view target-utils/pirexplore/flashid.c @ 416:30f6d1c32c6f

doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents e7502631a0f9
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;
}