Do core interrupt masking in a less general fashion and save some instructions to decrease size and speed things up a little bit. Small fix to a few places where interrupts would get enabled again where they shouldn't have been (context switching calls when disabled).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16811 a1c6a512-1295-4272-9138-f99709370657

bootloader/iaudio_coldfire.c

@@ -164,7 +164,7 @@ void main(void)
     set_cpu_frequency(CPUFREQ_NORMAL);
     coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
 
-    set_irq_level(0);
+    enable_irq();
     lcd_init();
 #ifdef HAVE_REMOTE_LCD
     lcd_remote_init();

bootloader/iriver_h1x0.c

@@ -435,7 +435,7 @@ void main(void)
     coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
 #endif
 #endif
-    set_irq_level(0);
+    enable_irq();
 
 #ifdef HAVE_EEPROM_SETTINGS
     initialize_eeprom();

bootloader/iriver_h300.c

@@ -175,10 +175,10 @@ void main(void)
     }
 
     /* get rid of a nasty humming sound during boot */
-    mask = set_irq_level(HIGHEST_IRQ_LEVEL);
+    mask = disable_irq_save();
     pcf50606_write(0x3b, 0x00);  /* GPOOD2 high Z */
     pcf50606_write(0x3b, 0x07);  /* GPOOD2 low */
-    set_irq_level(mask);
+    restore_irq(mask);
 
     /* Start with the main backlight OFF. */
     _backlight_init();
@@ -192,7 +192,7 @@ void main(void)
     /* Set up waitstates for the peripherals */
     set_cpu_frequency(0); /* PLL off */
     coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
-    set_irq_level(0);
+    enable_irq();
 
     isp1362_init();
 

bootloader/mrobe500.c

@@ -174,8 +174,8 @@ void main(void)
     system_init();
     kernel_init();
     
-    set_irq_level(0);
-    set_fiq_status(FIQ_ENABLED);
+    enable_irq();
+    enable_fiq();
 
     adc_init();
     button_init();