[AVR32] Clean up OCD register usage

Generate a new set of OCD register definitions in asm/ocd.h and rename
__mfdr() and __mtdr() to ocd_read() and ocd_write() respectively.

The bitfield definitions are a lot more complete now, and they are
entirely based on bit numbers, not masks. This is because OCD
registers are frequently accessed from assembly code, where bit
numbers are a lot more useful (can be fed directly to sbr, bfins,
etc.)

Bitfields that consist of more than one bit have two definitions:
_START, which indicates the number of the first bit, and _SIZE, which
indicates the number of bits. These directly correspond to the
parameters taken by the bfextu, bfexts and bfins instructions.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index f42a1d57cc7..9d6dac8af7a 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -55,8 +55,8 @@ void machine_power_off(void)
 
 void machine_restart(char *cmd)
 {
-        __mtdr(DBGREG_DC, DC_DBE);
-        __mtdr(DBGREG_DC, DC_RES);
+        ocd_write(DC, (1 << OCD_DC_DBE_BIT));
+        ocd_write(DC, (1 << OCD_DC_RES_BIT));
         while (1) ;
 }