diff options
Diffstat (limited to 'src/flash/ocl/at91sam7x/dcc.c')
-rw-r--r-- | src/flash/ocl/at91sam7x/dcc.c | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/src/flash/ocl/at91sam7x/dcc.c b/src/flash/ocl/at91sam7x/dcc.c deleted file mode 100644 index 6ab2417b..00000000 --- a/src/flash/ocl/at91sam7x/dcc.c +++ /dev/null @@ -1,51 +0,0 @@ -/*************************************************************************** - * Copyright (C) 2007 by Pavel Chromy * - * chromy@asix.cz * - * * - * 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., * - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * - ***************************************************************************/ -#include "dcc.h" - - -/* debug channel read (debugger->MCU) */ -uint32 dcc_rd(void) -{ - volatile uint32 dcc_reg; - - do { - asm volatile ("mrc p14, 0, %0, C0, C0" : "=r" (dcc_reg) :); - } while ((dcc_reg&1) == 0); - - asm volatile ("mrc p14, 0, %0, C1, C0" : "=r" (dcc_reg) :); - return dcc_reg; -} - - -/* debug channel write (MCU->debugger) */ -int dcc_wr(uint32 data) -{ - volatile uint32 dcc_reg; - - do { - asm volatile ("mrc p14, 0, %0, C0, C0" : "=r" (dcc_reg) :); - /* operation controled by master, cancel operation - upon reception of data for immediate response */ - if (dcc_reg&1) return -1; - } while (dcc_reg&2); - - asm volatile ("mcr p14, 0, %0, C1, C0" : : "r" (data)); - return 0; -} |