/** * NXT bootstrap interface; NXT onboard flashing driver. * * Copyright 2006 David Anderson * * 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 */ #define VINTPTR(addr) ((volatile unsigned int *)(addr)) #define VINT(addr) (*(VINTPTR(addr))) #define USER_PAGE VINTPTR(0x00202100) #define USER_PAGE_NUM VINT(0x00202300) #define FLASH_BASE VINTPTR(0x00100000) #define FLASH_CMD_REG VINT(0xFFFFFF64) #define FLASH_STATUS_REG VINT(0xFFFFFF68) #define OFFSET_PAGE_NUM ((USER_PAGE_NUM & 0x000003FF) << 8) #define FLASH_CMD_WRITE (0x5A000001 + OFFSET_PAGE_NUM) void do_flash_write(void) { unsigned long i; while (!(FLASH_STATUS_REG & 0x1)); for (i = 0; i < 64; i++) FLASH_BASE[(USER_PAGE_NUM*64)+i] = USER_PAGE[i]; FLASH_CMD_REG = FLASH_CMD_WRITE; while (!(FLASH_STATUS_REG & 0x1)); }