diff options
| author | Mihail Zenkov <mihail.zenkov@gmail.com> | 2016-02-20 04:14:52 +0000 |
|---|---|---|
| committer | Gerrit Rockbox <gerrit@rockbox.org> | 2016-03-27 21:59:22 +0200 |
| commit | 775b21ebc45051b51851ee5ed6597c221ed9cede (patch) | |
| tree | e1ba270c039e186db9c78500539625bb958ad4e7 /firmware/target/arm/as3525 | |
| parent | 77a35363c59dabb0a0ead6b8c078d3de8dd0a248 (diff) | |
AMSv2: additional delay for voltage scaling
We need additional delay since ascodec_write_pmu() working faster in
non-interrupts version of I2C2.
Change-Id: If4af3e42b3c8e8214baa36e54353b8adb527552d
Diffstat (limited to 'firmware/target/arm/as3525')
| -rw-r--r-- | firmware/target/arm/as3525/system-as3525.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c index 1db4699ec8..22aa90aad6 100644 --- a/firmware/target/arm/as3525/system-as3525.c +++ b/firmware/target/arm/as3525/system-as3525.c @@ -460,9 +460,12 @@ void set_cpu_frequency(long frequency) { if(frequency == CPUFREQ_MAX) { +#if 0 /* Set CVDD1 power supply */ - /*ascodec_write_pmu(0x17, 1, 0x80 | 47);*/ - + ascodec_write_pmu(0x17, 1, 0x80 | 47); + /* dely for voltage rising */ + udelay(50); +#endif CGU_PROC = ((AS3525_FCLK_POSTDIV << 4) | (AS3525_FCLK_PREDIV << 2) | AS3525_FCLK_SEL); @@ -478,13 +481,13 @@ void set_cpu_frequency(long frequency) cpu_frequency = CPUFREQ_NORMAL; /* Set CVDD1 power supply */ - /* +#if 0 #ifdef SANSA_CLIPZIP ascodec_write_pmu(0x17, 1, 0x80 | 19); #else ascodec_write_pmu(0x17, 1, 0x80 | 22); #endif - */ +#endif } } #endif |