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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _IOP13XX_TIME_H_
#define _IOP13XX_TIME_H_
#include <mach/irqs.h>
#define IRQ_IOP_TIMER0 IRQ_IOP13XX_TIMER0
#define IOP_TMR_EN 0x02
#define IOP_TMR_RELOAD 0x04
#define IOP_TMR_PRIVILEGED 0x08
#define IOP_TMR_RATIO_1_1 0x00
#define IOP13XX_XSI_FREQ_RATIO_MASK (3 << 19)
#define IOP13XX_XSI_FREQ_RATIO_2 (0 << 19)
#define IOP13XX_XSI_FREQ_RATIO_3 (1 << 19)
#define IOP13XX_XSI_FREQ_RATIO_4 (2 << 19)
#define IOP13XX_CORE_FREQ_MASK (7 << 16)
#define IOP13XX_CORE_FREQ_600 (0 << 16)
#define IOP13XX_CORE_FREQ_667 (1 << 16)
#define IOP13XX_CORE_FREQ_800 (2 << 16)
#define IOP13XX_CORE_FREQ_933 (3 << 16)
#define IOP13XX_CORE_FREQ_1000 (4 << 16)
#define IOP13XX_CORE_FREQ_1200 (5 << 16)
void iop_init_time(unsigned long tickrate);
static inline unsigned long iop13xx_core_freq(void)
{
unsigned long freq = __raw_readl(IOP13XX_PROCESSOR_FREQ);
freq &= IOP13XX_CORE_FREQ_MASK;
switch (freq) {
case IOP13XX_CORE_FREQ_600:
return 600000000;
case IOP13XX_CORE_FREQ_667:
return 667000000;
case IOP13XX_CORE_FREQ_800:
return 800000000;
case IOP13XX_CORE_FREQ_933:
return 933000000;
case IOP13XX_CORE_FREQ_1000:
return 1000000000;
case IOP13XX_CORE_FREQ_1200:
return 1200000000;
default:
printk("%s: warning unknown frequency, defaulting to 800MHz\n",
__func__);
}
return 800000000;
}
static inline unsigned long iop13xx_xsi_bus_ratio(void)
{
unsigned long ratio = __raw_readl(IOP13XX_PROCESSOR_FREQ);
ratio &= IOP13XX_XSI_FREQ_RATIO_MASK;
switch (ratio) {
case IOP13XX_XSI_FREQ_RATIO_2:
return 2;
case IOP13XX_XSI_FREQ_RATIO_3:
return 3;
case IOP13XX_XSI_FREQ_RATIO_4:
return 4;
default:
printk("%s: warning unknown ratio, defaulting to 2\n",
__func__);
}
return 2;
}
static inline u32 read_tmr0(void)
{
u32 val;
asm volatile("mrc p6, 0, %0, c0, c9, 0" : "=r" (val));
return val;
}
static inline void write_tmr0(u32 val)
{
asm volatile("mcr p6, 0, %0, c0, c9, 0" : : "r" (val));
}
static inline void write_tmr1(u32 val)
{
asm volatile("mcr p6, 0, %0, c1, c9, 0" : : "r" (val));
}
static inline u32 read_tcr0(void)
{
u32 val;
asm volatile("mrc p6, 0, %0, c2, c9, 0" : "=r" (val));
return val;
}
static inline void write_tcr0(u32 val)
{
asm volatile("mcr p6, 0, %0, c2, c9, 0" : : "r" (val));
}
static inline u32 read_tcr1(void)
{
u32 val;
asm volatile("mrc p6, 0, %0, c3, c9, 0" : "=r" (val));
return val;
}
static inline void write_tcr1(u32 val)
{
asm volatile("mcr p6, 0, %0, c3, c9, 0" : : "r" (val));
}
static inline void write_trr0(u32 val)
{
asm volatile("mcr p6, 0, %0, c4, c9, 0" : : "r" (val));
}
static inline void write_trr1(u32 val)
{
asm volatile("mcr p6, 0, %0, c5, c9, 0" : : "r" (val));
}
static inline void write_tisr(u32 val)
{
asm volatile("mcr p6, 0, %0, c6, c9, 0" : : "r" (val));
}
#endif
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