diff options
| author | Rafaël Carré <rafael.carre@gmail.com> | 2009-07-05 09:24:56 +0000 |
|---|---|---|
| committer | Rafaël Carré <rafael.carre@gmail.com> | 2009-07-05 09:24:56 +0000 |
| commit | 4368b59b09b0e07111b58ac9c6d423ddeec7d9c6 (patch) | |
| tree | f531a870ee3c17b2e8f6002f815b1f3d423e2cd0 | |
| parent | ef7ad19d37f24826eb8ff6be34c4f91a02832473 (diff) | |
Sansa AMS : don't reinvent adc_read(), patch by FlynDice
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21651 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | firmware/target/arm/as3525/system-as3525.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c index 828ed2ef3e..3b24ac2f39 100644 --- a/firmware/target/arm/as3525/system-as3525.c +++ b/firmware/target/arm/as3525/system-as3525.c @@ -24,6 +24,7 @@ #include "system.h" #include "panic.h" #include "ascodec-target.h" +#include "adc.h" #include "dma-target.h" #include "clock-target.h" #include "fmradio_i2c.h" @@ -330,11 +331,11 @@ void set_cpu_frequency(long frequency) { /* Increasing frequency so boost voltage before change */ ascodec_write(AS3514_CVDD_DCDC3, (AS314_CP_DCDC3_SETTING | CVDD_1_20)); + /* Wait for voltage to be at least 1.20v before making fclk > 200 MHz */ - do - ascodec_write(AS3514_ADC_0, 4<<4); /* ADC Input = CVDD */ - while (ascodec_read(AS3514_ADC_1) < 0xe0); /* 0x1e0 *.0025 = 1.20v */ - /* e0 = 8LSB's of 0x1e0 */ + while(adc_read(ADC_CVDD) < 480) /* 480 * .0025 = 1.20V */ + ; + asm volatile( "mrc p15, 0, r0, c1, c0 \n" |