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ramips: implement clock API for RT288x

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25125 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2011-01-26 20:48:39 +00:00
parent 86f7e2834f
commit e388e46ebb
7 changed files with 152 additions and 45 deletions
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31
target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c
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@@ -20,12 +20,6 @@
#include <asm/mach-ralink/rt288x.h>
#include <asm/mach-ralink/rt288x_regs.h>
unsigned long rt288x_cpu_freq;
EXPORT_SYMBOL_GPL(rt288x_cpu_freq);
unsigned long rt288x_sys_freq;
EXPORT_SYMBOL_GPL(rt288x_sys_freq);
void __iomem * rt288x_sysc_base;
void __iomem * rt288x_memc_base;
@@ -49,31 +43,6 @@ void __init rt288x_detect_sys_type(void)
(id & CHIP_ID_REV_MASK));
}
void __init rt288x_detect_sys_freq(void)
{
u32 t;
t = rt288x_sysc_rr(SYSC_REG_SYSTEM_CONFIG);
t = ((t >> SYSTEM_CONFIG_CPUCLK_SHIFT) & SYSTEM_CONFIG_CPUCLK_MASK);
switch (t) {
case SYSTEM_CONFIG_CPUCLK_250:
rt288x_cpu_freq = 250000000;
break;
case SYSTEM_CONFIG_CPUCLK_266:
rt288x_cpu_freq = 266666667;
break;
case SYSTEM_CONFIG_CPUCLK_280:
rt288x_cpu_freq = 280000000;
break;
case SYSTEM_CONFIG_CPUCLK_300:
rt288x_cpu_freq = 300000000;
break;
}
rt288x_sys_freq = rt288x_cpu_freq / 2;
}
static void rt288x_gpio_reserve(int first, int last)
{
for (; first <= last; first++)