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ARM: remove mrc_opcode(), use MRC() or MCR()

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Get rid of mrc_opcode() in favor of ARMV4_5_MRC() or, where
arm*20t should have used it, ARMV4_5_MCR() instead.

Basically, *writing* coprocessor registers shouldn't have
used the *read* opcode ... and both should stick to standard
opcode constructors, not rearranging parameter sequence any
more than already needed.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell
2009-12-07 14:54:12 -08:00
parent 7936ab16da
commit 7b0314c377
3 changed files with 32 additions and 20 deletions
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20
src/target/arm720t.c
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@@ -481,7 +481,10 @@ COMMAND_HANDLER(arm720t_handle_cp15_command)
return ERROR_OK;
}
static int arm720t_mrc(struct target *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t *value)
static int arm720t_mrc(struct target *target, int cpnum,
uint32_t op1, uint32_t op2,
uint32_t CRn, uint32_t CRm,
uint32_t *value)
{
if (cpnum!=15)
{
@@ -489,11 +492,17 @@ static int arm720t_mrc(struct target *target, int cpnum, uint32_t op1, uint32_t
return ERROR_FAIL;
}
return arm720t_read_cp15(target, mrc_opcode(cpnum, op1, op2, CRn, CRm), value);
/* read "to" r0 */
return arm720t_read_cp15(target,
ARMV4_5_MRC(cpnum, op1, 0, CRn, CRm, op2),
value);
}
static int arm720t_mcr(struct target *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t value)
static int arm720t_mcr(struct target *target, int cpnum,
uint32_t op1, uint32_t op2,
uint32_t CRn, uint32_t CRm,
uint32_t value)
{
if (cpnum!=15)
{
@@ -501,7 +510,10 @@ static int arm720t_mcr(struct target *target, int cpnum, uint32_t op1, uint32_t
return ERROR_FAIL;
}
return arm720t_write_cp15(target, mrc_opcode(cpnum, op1, op2, CRn, CRm), value);
/* write "from" r0 */
return arm720t_write_cp15(target,
ARMV4_5_MCR(cpnum, op1, 0, CRn, CRm, op2),
value);
}
static const struct command_registration arm720t_exec_command_handlers[] = {