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| author | Jens Arnold <amiconn@rockbox.org> | 2007-07-26 05:06:11 +0000 |
|---|---|---|
| committer | Jens Arnold <amiconn@rockbox.org> | 2007-07-26 05:06:11 +0000 |
| commit | f67b4baf1d3eea97dc400e26e9dc2d0d32b5cff1 (patch) | |
| tree | cf42d2ac5f403ca68ad94b20d9afd3ef05e4a8a2 | |
| parent | 5ec657545c9229729bab208af8cee97efe8d7da4 (diff) | |
| download | rockbox-f67b4baf1d3eea97dc400e26e9dc2d0d32b5cff1.zip rockbox-f67b4baf1d3eea97dc400e26e9dc2d0d32b5cff1.tar.gz rockbox-f67b4baf1d3eea97dc400e26e9dc2d0d32b5cff1.tar.bz2 rockbox-f67b4baf1d3eea97dc400e26e9dc2d0d32b5cff1.tar.xz | |
Stop the occasional crashes (most often 'undefined instruction') on PP5020 (and PP5022?) targets.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13991 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | firmware/target/arm/system-pp502x.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/firmware/target/arm/system-pp502x.c b/firmware/target/arm/system-pp502x.c index e2497c9..3011162 100644 --- a/firmware/target/arm/system-pp502x.c +++ b/firmware/target/arm/system-pp502x.c @@ -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 |