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Diffstat (limited to 'firmware/target/arm/as3525/sansa-clipplus/lcd-clip-plus.c')
-rw-r--r--firmware/target/arm/as3525/sansa-clipplus/lcd-clip-plus.c23
1 files changed, 1 insertions, 22 deletions
diff --git a/firmware/target/arm/as3525/sansa-clipplus/lcd-clip-plus.c b/firmware/target/arm/as3525/sansa-clipplus/lcd-clip-plus.c
index 7c0cfb5345..a50a9e5c80 100644
--- a/firmware/target/arm/as3525/sansa-clipplus/lcd-clip-plus.c
+++ b/firmware/target/arm/as3525/sansa-clipplus/lcd-clip-plus.c
@@ -26,25 +26,11 @@
26#include "system.h" 26#include "system.h"
27#include "cpu.h" 27#include "cpu.h"
28 28
29static void ssp_set_prescaler(unsigned int prescaler)
30{
31 int oldlevel = disable_interrupt_save(IRQ_FIQ_STATUS);
32 /* must be on to write regs */
33 bool ssp_enabled = bitset32(&CGU_PERI, CGU_SSP_CLOCK_ENABLE) &
34 CGU_SSP_CLOCK_ENABLE;
35 SSP_CPSR = prescaler;
36
37 if (!ssp_enabled) /* put it back how we found it */
38 bitclr32(&CGU_PERI, CGU_SSP_CLOCK_ENABLE);
39
40 restore_irq(oldlevel);
41}
42
43int lcd_hw_init(void) 29int lcd_hw_init(void)
44{ 30{
45 bitset32(&CGU_PERI, CGU_SSP_CLOCK_ENABLE); 31 bitset32(&CGU_PERI, CGU_SSP_CLOCK_ENABLE);
46 32
47 ssp_set_prescaler(AS3525_SSP_PRESCALER); /* OF = 0x10 */ 33 SSP_CPSR = AS3525_SSP_PRESCALER; /* OF = 0x10 */
48 SSP_CR0 = (1<<7) | (1<<6) | 7; /* Motorola SPI frame format, 8 bits */ 34 SSP_CR0 = (1<<7) | (1<<6) | 7; /* Motorola SPI frame format, 8 bits */
49 SSP_CR1 = (1<<3) | (1<<1); /* SSP Operation enabled */ 35 SSP_CR1 = (1<<3) | (1<<1); /* SSP Operation enabled */
50 SSP_IMSC = 0; /* No interrupts */ 36 SSP_IMSC = 0; /* No interrupts */
@@ -129,10 +115,3 @@ void lcd_enable_power(bool onoff)
129#endif 115#endif
130} 116}
131 117
132#if defined(CONFIG_POWER_SAVING) && (CONFIG_POWER_SAVING & POWERSV_DISP)
133/* declared in system-as3525.c */
134void ams_ssp_set_low_speed(bool slow)
135{
136 ssp_set_prescaler(slow ? AS3525_SSP_PRESCALER_MAX : AS3525_SSP_PRESCALER);
137}
138#endif