d7e55278f3
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11470 a1c6a512-1295-4272-9138-f99709370657
160 lines
4.6 KiB
C
160 lines
4.6 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2002 by Alan Korr
|
|
*
|
|
* All files in this archive are subject to the GNU General Public License.
|
|
* See the file COPYING in the source tree root for full license agreement.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
#ifndef SYSTEM_TARGET_H
|
|
#define SYSTEM_TARGET_H
|
|
|
|
#define or_l(mask, address) \
|
|
asm \
|
|
("or.l %0,(%1)" \
|
|
: \
|
|
: /* %0 */ "d"(mask), \
|
|
/* %1 */ "a"(address))
|
|
|
|
#define and_l(mask, address) \
|
|
asm \
|
|
("and.l %0,(%1)" \
|
|
: \
|
|
: /* %0 */ "d"(mask), \
|
|
/* %1 */ "a"(address))
|
|
|
|
#define eor_l(mask, address) \
|
|
asm \
|
|
("eor.l %0,(%1)" \
|
|
: \
|
|
: /* %0 */ "d"(mask), \
|
|
/* %1 */ "a"(address))
|
|
|
|
#define EMAC_ROUND 0x10
|
|
#define EMAC_FRACTIONAL 0x20
|
|
#define EMAC_SATURATE 0x80
|
|
|
|
static inline void coldfire_set_macsr(unsigned long flags)
|
|
{
|
|
asm volatile ("move.l %0, %%macsr" : : "i,r" (flags));
|
|
}
|
|
|
|
static inline unsigned long coldfire_get_macsr(void)
|
|
{
|
|
unsigned long m;
|
|
|
|
asm volatile ("move.l %%macsr, %0" : "=r" (m));
|
|
return m;
|
|
}
|
|
|
|
#define HIGHEST_IRQ_LEVEL (7<<8)
|
|
static inline int set_irq_level(int level)
|
|
{
|
|
int oldlevel;
|
|
/* Read the old level and set the new one */
|
|
asm volatile ("move.w %%sr,%0\n"
|
|
"or.l #0x2000,%1\n"
|
|
"move.w %1,%%sr\n" : "=d" (oldlevel), "+d" (level) : );
|
|
return oldlevel;
|
|
}
|
|
|
|
static inline unsigned short swap16(unsigned short value)
|
|
/*
|
|
result[15..8] = value[ 7..0];
|
|
result[ 7..0] = value[15..8];
|
|
*/
|
|
{
|
|
return (value >> 8) | (value << 8);
|
|
}
|
|
|
|
static inline unsigned long SWAW32(unsigned long value)
|
|
/*
|
|
result[31..16] = value[15.. 0];
|
|
result[15.. 0] = value[31..16];
|
|
*/
|
|
{
|
|
asm ("swap %%0" : "+r"(value));
|
|
return value;
|
|
}
|
|
|
|
static inline unsigned long swap32(unsigned long value)
|
|
/*
|
|
result[31..24] = value[ 7.. 0];
|
|
result[23..16] = value[15.. 8];
|
|
result[15.. 8] = value[23..16];
|
|
result[ 7.. 0] = value[31..24];
|
|
*/
|
|
{
|
|
unsigned long mask = 0x00FF00FF;
|
|
asm ( /* val = ABCD */
|
|
"and.l %[val],%[mask] \n" /* mask = .B.D */
|
|
"eor.l %[mask],%[val] \n" /* val = A.C. */
|
|
"lsl.l #8,%[mask] \n" /* mask = B.D. */
|
|
"lsr.l #8,%[val] \n" /* val = .A.C */
|
|
"or.l %[mask],%[val] \n" /* val = BADC */
|
|
"swap %[val] \n" /* val = DCBA */
|
|
: /* outputs */
|
|
[val] "+d"(value),
|
|
[mask]"+d"(mask)
|
|
);
|
|
return value;
|
|
}
|
|
|
|
static inline unsigned long swap_odd_even32(unsigned long value)
|
|
{
|
|
/*
|
|
result[31..24],[15.. 8] = value[23..16],[ 7.. 0]
|
|
result[23..16],[ 7.. 0] = value[31..24],[15.. 8]
|
|
*/
|
|
unsigned long mask = 0x00FF00FF;
|
|
|
|
asm ( /* val = ABCD */
|
|
"and.l %[val],%[mask] \n" /* mask = .B.D */
|
|
"eor.l %[mask],%[val] \n" /* val = A.C. */
|
|
"lsl.l #8,%[mask] \n" /* mask = B.D. */
|
|
"lsr.l #8,%[val] \n" /* val = .A.C */
|
|
"or.l %[mask],%[val] \n" /* val = BADC */
|
|
: /* outputs */
|
|
[val] "+d"(value),
|
|
[mask]"+d"(mask)
|
|
);
|
|
|
|
return value;
|
|
}
|
|
|
|
static inline void invalidate_icache(void)
|
|
{
|
|
asm volatile ("move.l #0x01000000,%d0\n"
|
|
"movec.l %d0,%cacr\n"
|
|
"move.l #0x80000000,%d0\n"
|
|
"movec.l %d0,%cacr");
|
|
}
|
|
|
|
#ifdef IAUDIO_X5
|
|
#define DEFAULT_PLLCR_AUDIO_BITS 0x10400000
|
|
#else
|
|
#define DEFAULT_PLLCR_AUDIO_BITS 0x10c00000
|
|
#endif
|
|
void coldfire_set_pllcr_audio_bits(long bits);
|
|
|
|
/* 11.2896 MHz */
|
|
#define CPUFREQ_DEFAULT_MULT 1
|
|
#define CPUFREQ_DEFAULT (CPUFREQ_DEFAULT_MULT * CPU_FREQ)
|
|
/* 45.1584 MHz */
|
|
#define CPUFREQ_NORMAL_MULT 4
|
|
#define CPUFREQ_NORMAL (CPUFREQ_NORMAL_MULT * CPU_FREQ)
|
|
/* 124.1856 MHz */
|
|
#define CPUFREQ_MAX_MULT 11
|
|
#define CPUFREQ_MAX (CPUFREQ_MAX_MULT * CPU_FREQ)
|
|
|
|
#endif /* SYSTEM_TARGET_H */
|