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Stop the occasional crashes (most often 'undefined instruction') on PP5020 (and PP5022?) targets.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13991 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2007-07-26 05:06:11 +00:00
parent 5ec657545c
commit f67b4baf1d
1 changed files with 6 additions and 5 deletions
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11
firmware/target/arm/system-pp502x.c
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@ -156,7 +156,7 @@ void set_cpu_frequency(long frequency)
/* Using mutex or spinlock isn't safe here. */
while (test_and_set(&boostctrl_mtx.locked, 1)) ;
# endif
if (frequency == CPUFREQ_NORMAL)
postmult = CPUFREQ_NORMAL_MULT;
else if (frequency == CPUFREQ_MAX)
@ -171,8 +171,8 @@ void set_cpu_frequency(long frequency)
/* Set clock source #1 to 24MHz and select it */
outl((inl(0x60006020) & 0x0ffffff0) | 0x10000002, 0x60006020);
outl(unknown2 & 0x3fffffff, 0x600060a0);
outl(inl(0x600060a0) & ~0xc0000000, 0x600060a0);
unknown1 = (138 * postmult + 255) >> 8;
if (unknown1 > 15)
@ -193,9 +193,10 @@ void set_cpu_frequency(long frequency)
/* Select PLL as clock source? */
outl((inl(0x60006020) & 0x0fffff0f) | 0x20000070, 0x60006020);
inl(0x600060a0); /* sync pipeline (?) */
outl(unknown2, 0x600060a0);
# if NUM_CORES > 1
boostctrl_mtx.locked = 0;
# endif