main.c revision 238188
1/*- 2 * Copyright (c) 2006 M. Warner Losh. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * 24 * $FreeBSD: head/sys/boot/arm/at91/boot0spi/main.c 238188 2012-07-07 04:55:42Z imp $ 25 */ 26 27#include "at91rm9200.h" 28#include "lib.h" 29#include "at91rm9200_lowlevel.h" 30#include "spi_flash.h" 31 32#define OFFSET 0 33 34void 35main(void) 36{ 37 int len, i, j, off, sec; 38 char *addr = (char *)SDRAM_BASE + (1 << 20); /* download at + 1MB */ 39 char *addr2 = (char *)SDRAM_BASE + (2 << 20); /* readback to + 2MB */ 40 41 SPI_InitFlash(); 42 printf("Waiting for data\n"); 43 while ((len = xmodem_rx(addr)) == -1) 44 continue; 45 printf("Writing %u bytes at %u\n", len, OFFSET); 46 for (i = 0; i < len; i+= FLASH_PAGE_SIZE) { 47 off = i + OFFSET; 48 for (j = 0; j < 10; j++) { 49 SPI_WriteFlash(off, addr + i, FLASH_PAGE_SIZE); 50 SPI_ReadFlash(off, addr2 + i, FLASH_PAGE_SIZE); 51 if (p_memcmp(addr + i, addr2 + i, FLASH_PAGE_SIZE) == 0) 52 break; 53 } 54 if (j >= 10) 55 printf("Bad Readback at %u\n", i); 56 } 57 sec = GetSeconds() + 2; 58 while (sec <= GetSeconds()) 59 continue; 60 printf("Done\n"); 61 reset(); 62} 63