#define BANK2 (1<<3)
#define BL (1<<4)
#define FLASHFW (1<<5)
+#define BINARY (1<<6)
#define BANK0_ADDR 0x80000000
#define BANK2_ADDR 0x82000000
printf(" -Dx <filename>\n");
printf(" x=0: bank0, x=2: bank2, x=b: bootloader\n");
printf(" -w <firmware which goes to flash>\n");
+ printf(" -b (if firmware for flash is a binary)\n");
printf(" -v\n");
}
cfsetispeed(&term,B115200);
cfsetospeed(&term,B115200);
+ // timeouts
+
+ term.c_cc[VMIN]=0;
+ term.c_cc[VTIME]=100; // 10 seconds timeout
+
ret=tcsetattr(lpc->sfd,TCSANOW,&term);
return ret;
send[1+i+as]=(len>>((ls-1-i)*8))&0xff;
cnt=0;
- printf(" sending cmd: ");
while(size) {
ret=write(sfd,send+cnt,size);
if(ret<0) {
perror("dump file: send cmd ");
return ret;
}
- for(i=cnt;i<cnt+ret;i++)
- printf("%02x ",send[i]);
size-=ret;
cnt+=ret;
}
- printf("\n");
+
+ /* flush */
+ tcflush(sfd,TCIOFLUSH);
return 0;
}
-int write_to_flash(t_lpc *lpc,char *buf,u32 addr,int len) {
+int write_to_flash(t_lpc *lpc,u8 *buf,u32 addr,int len) {
+
+ int cnt,ret;
+ u8 cksml,cksmr;
+ int i;
- int cnt,size,ret;
+ /* prepare addr */
+ addr+=lpc->roff;
/* send cmd */
send_cmd(lpc->sfd,addr,len,CMD_WRITE);
/* transfer data */
+ cnt=0;
+ cksml=0;
while(len) {
- size=2;
- while(size) {
- ret=write(lpc->sfd,buf+cnt,2);
- if(ret<0) {
- perror("transmit flash content");
- return ret;
- }
- size-=ret;
+ ret=write(lpc->sfd,buf+cnt,len);
+ if(ret<0) {
+ perror("transmit flash content (w)");
+ return ret;
}
- cnt+=2;
+ for(i=cnt;i<cnt+ret;i++)
+ cksml+=buf[i];
+ len-=ret;
+ cnt+=ret;
+ }
+
+
+ /* check ack */
+ while(1) {
+ ret=read(lpc->sfd,&cksmr,1);
+ if(ret<0) {
+ perror("write to flash: read cksm");
+ return ret;
+ }
+ if(ret==1) break;
+ }
+ if(cksml!=cksmr) {
+ printf("FATAL: wrong checksum or failure in flash write!\n");
+ if(cksml+1==cksmr)
+ printf(" -> most probably due to flash write!\n");
+ else
+ printf(" -> most probably failure in transfer!\n");
+ printf(" addr:0x%08x l:%02x r:%02x\n",addr,cksml,cksmr);
}
return 0;
else
return -1;
+ /* another evil hack to support binary format */
+ if((lpc->info&BINARY)&&(memtype==FLASH)) {
+ addr=0;
+ ret=1;
+ while(ret) {
+ ret=read(fd,buf,16);
+ if(ret!=16) {
+ printf("D'OH ...\n");
+ return -1;
+ }
+ buf[16]='s'; // skip
+ for(temp=0;temp<16;temp++)
+ if((u8)buf[temp]!=0xff)
+ buf[16]='w'; // write
+ printf("addr:%08x\r",addr+lpc->roff);
+ fflush(stdout);
+ if(buf[16]=='w')
+ write_to_flash(lpc,(u8 *)buf,addr,16);
+ addr+=16;
+ }
+ return 0;
+ }
+
/* read a line */
ret=1;
while(ret) {
if(memtype==RAM)
write_to_ram(lpc,buf,addr,len);
else
- write_to_flash(lpc,buf,addr,len);
+ write_to_flash(lpc,(u8 *)buf,addr,len);
break;
case 0x04:
lpc->roff=((buf[0]<<24)|(buf[1]<<16));
strncpy(lpc.ffwfile,argv[++i],127);
lpc.info|=FLASHFW;
break;
+ case 'b':
+ lpc.info|=BINARY;
+ break;
default:
usage();
return -1;
/* write a firmware to the lpc flash */
if(lpc.info&FLASHFW) {
- send_cmd(lpc.sfd,0,0,CMD_CHIP_ERASE);
+ printf("writing firmware to flash ...\n");
+ send_cmd(lpc.sfd,0,'0',CMD_CHIP_ERASE);
+ /* ack */
+ ret=0;
+ while(!ret)
+ read(lpc.sfd,&ret,1);
lpc.roff=BANK0_ADDR;
firmware_to_mem(&lpc,FLASH);
}