summaryrefslogtreecommitdiff
path: root/firmware/target/arm/as3525
diff options
context:
space:
mode:
Diffstat (limited to 'firmware/target/arm/as3525')
-rw-r--r--firmware/target/arm/as3525/system-as3525.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c
index 3b24ac2f39..60be7ddac0 100644
--- a/firmware/target/arm/as3525/system-as3525.c
+++ b/firmware/target/arm/as3525/system-as3525.c
@@ -329,13 +329,14 @@ void set_cpu_frequency(long frequency)
329{ 329{
330 if(frequency == CPUFREQ_MAX) 330 if(frequency == CPUFREQ_MAX)
331 { 331 {
332#ifdef HAVE_ADJUSTABLE_CPU_VOLTAGE
332 /* Increasing frequency so boost voltage before change */ 333 /* Increasing frequency so boost voltage before change */
333 ascodec_write(AS3514_CVDD_DCDC3, (AS314_CP_DCDC3_SETTING | CVDD_1_20)); 334 ascodec_write(AS3514_CVDD_DCDC3, (AS314_CP_DCDC3_SETTING | CVDD_1_20));
334 335
335 /* Wait for voltage to be at least 1.20v before making fclk > 200 MHz */ 336 /* Wait for voltage to be at least 1.20v before making fclk > 200 MHz */
336 while(adc_read(ADC_CVDD) < 480) /* 480 * .0025 = 1.20V */ 337 while(adc_read(ADC_CVDD) < 480) /* 480 * .0025 = 1.20V */
337 ; 338 ;
338 339#endif
339 asm volatile( 340 asm volatile(
340 "mrc p15, 0, r0, c1, c0 \n" 341 "mrc p15, 0, r0, c1, c0 \n"
341 342
@@ -358,10 +359,10 @@ void set_cpu_frequency(long frequency)
358 "bic r0, r0, #3<<30 \n" /* fastbus clocking */ 359 "bic r0, r0, #3<<30 \n" /* fastbus clocking */
359 "mcr p15, 0, r0, c1, c0 \n" 360 "mcr p15, 0, r0, c1, c0 \n"
360 : : : "r0" ); 361 : : : "r0" );
361 362#ifdef HAVE_ADJUSTABLE_CPU_VOLTAGE
362 /* Decreasing frequency so reduce voltage after change */ 363 /* Decreasing frequency so reduce voltage after change */
363 ascodec_write(AS3514_CVDD_DCDC3, (AS314_CP_DCDC3_SETTING | CVDD_1_10)); 364 ascodec_write(AS3514_CVDD_DCDC3, (AS314_CP_DCDC3_SETTING | CVDD_1_10));
364 365#endif
365 cpu_frequency = CPUFREQ_NORMAL; 366 cpu_frequency = CPUFREQ_NORMAL;
366 } 367 }
367} 368}