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Adjusted refresh timer for H110

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7069 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2005-07-08 15:03:05 +00:00
parent 3b5fdbeb1f
commit e257042a5d
1 changed files with 10 additions and 2 deletions
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12
firmware/system.c
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@ -502,6 +502,14 @@ void system_init(void)
: : : "d0");
}
#ifdef IRIVER_H100
#define MAX_REFRESH_TIMER 56
#define NORMAL_REFRESH_TIMER 20
#else
#define MAX_REFRESH_TIMER 28
#define NORMAL_REFRESH_TIMER 10
#endif
void set_cpu_frequency (long) __attribute__ ((section (".icode")));
void set_cpu_frequency(long frequency)
{
@ -516,7 +524,7 @@ void set_cpu_frequency(long frequency)
CSCR1 = 0x00002580; /* LCD: 9 wait states */
while(!(PLLCR & 0x80000000)) {}; /* Wait until the PLL has locked.
This may take up to 10ms! */
DCR = (DCR & ~0x01ff) | 28; /* Refresh timer */
DCR = (DCR & ~0x01ff) | MAX_REFRESH_TIMER; /* Refresh timer */
cpu_frequency = CPUFREQ_MAX;
tick_start(1000/HZ);
IDECONFIG1 = 0x106000 | (5 << 10); /* BUFEN2 enable + CS2Pre/CS2Post */
@ -535,7 +543,7 @@ void set_cpu_frequency(long frequency)
CSCR1 = 0x00000980; /* LCD: 2 wait states */
while(!(PLLCR & 0x80000000)) {}; /* Wait until the PLL has locked.
This may take up to 10ms! */
DCR = (DCR & ~0x01ff) | 10; /* Refresh timer */
DCR = (DCR & ~0x01ff) | NORMAL_REFRESH_TIMER; /* Refresh timer */
cpu_frequency = CPUFREQ_NORMAL;
tick_start(1000/HZ);
IDECONFIG1 = 0x106000 | (5 << 10); /* BUFEN2 enable + CS2Pre/CS2Post */