HD200 - Increase ADC clock when boosted. Scan all 4 ADC channels during system tick

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27262 a1c6a512-1295-4272-9138-f99709370657
diff --git a/firmware/target/coldfire/mpio/hd200/adc-hd200.c b/firmware/target/coldfire/mpio/hd200/adc-hd200.c
index 656d82e..01b6f53 100644
--- a/firmware/target/coldfire/mpio/hd200/adc-hd200.c
+++ b/firmware/target/coldfire/mpio/hd200/adc-hd200.c
@@ -40,7 +40,7 @@
 {
     static unsigned char channel IBSS_ATTR;
     /* read current value */
-    adc_data[((channel&0x01)+1)] = ADVALUE;
+    adc_data[(channel&0x03)] = ADVALUE;
 
     /* switch channel
      *
@@ -51,10 +51,10 @@
 
     channel++;
 
-    and_l(~(3<<24),&ADCONFIG);
-    or_l( ((((channel&0x01)+1) << 8 )|(1<<7))<<16, &ADCONFIG);
+    and_l(~(0x03<<24),&ADCONFIG);
+    or_l( (((channel&0x03) << 8 )|(1<<7))<<16, &ADCONFIG);
     
-    if ( (channel & 0x01) == 0 )
+    if ( (channel & 0x03) == 0 )
         /* disable ADC interrupt */
         and_l((~(1<<6))<<16,&ADCONFIG);
 }
diff --git a/firmware/target/coldfire/mpio/hd200/system-hd200.c b/firmware/target/coldfire/mpio/hd200/system-hd200.c
index 60699e4..a6277d0 100644
--- a/firmware/target/coldfire/mpio/hd200/system-hd200.c
+++ b/firmware/target/coldfire/mpio/hd200/system-hd200.c
@@ -81,7 +81,7 @@
         IDECONFIG2 = (1<<18)|(1<<16)|(1<<8)|(1<<0); /* TA /CS2 enable + CS2wait */
 
         and_l(~(0x07<<16), &ADCONFIG);
-        or_l((0x06)<<16, &ADCONFIG); /* adclk = busclk/64 */
+        or_l((0x05)<<16, &ADCONFIG); /* adclk = busclk/32 */
         break;
 
     case CPUFREQ_NORMAL: