/* timer-regs.h: hardware timer register definitions * * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #ifndef _ASM_TIMER_REGS_H #define _ASM_TIMER_REGS_H #include <asm/sections.h> extern unsigned long __nongprelbss __clkin_clock_speed_HZ; extern unsigned long __nongprelbss __ext_bus_clock_speed_HZ; extern unsigned long __nongprelbss __res_bus_clock_speed_HZ; extern unsigned long __nongprelbss __sdram_clock_speed_HZ; extern unsigned long __nongprelbss __core_bus_clock_speed_HZ; extern unsigned long __nongprelbss __core_clock_speed_HZ; extern unsigned long __nongprelbss __dsu_clock_speed_HZ; extern unsigned long __nongprelbss __serial_clock_speed_HZ; #define __get_CLKC() ({ *(volatile unsigned long *)(0xfeff9a00); }) static inline void __set_CLKC(unsigned long v) { int tmp; asm volatile(" st%I0.p %2,%M0 \n" " setlos %3,%1 \n" " membar \n" "0: \n" " subicc %1,#1,%1,icc0 \n" " bnc icc0,#1,0b \n" : "=m"(*(volatile unsigned long *) 0xfeff9a00), "=r"(tmp) : "r"(v), "i"(256) : "icc0"); } #define __get_TCTR() ({ *(volatile unsigned long *)(0xfeff9418); }) #define __get_TPRV() ({ *(volatile unsigned long *)(0xfeff9420); }) #define __get_TPRCKSL() ({ *(volatile unsigned long *)(0xfeff9428); }) #define __get_TCSR(T) ({ *(volatile unsigned long *)(0xfeff9400 + 8 * (T)); }) #define __get_TxCKSL(T) ({ *(volatile unsigned long *)(0xfeff9430 + 8 * (T)); }) #define __get_TCSR_DATA(T) ({ __get_TCSR(T) >> 24; }) #define __set_TCTR(V) do { *(volatile unsigned long *)(0xfeff9418) = (V); mb(); } while(0) #define __set_TPRV(V) do { *(volatile unsigned long *)(0xfeff9420) = (V) << 24; mb(); } while(0) #define __set_TPRCKSL(V) do { *(volatile unsigned long *)(0xfeff9428) = (V); mb(); } while(0) #define __set_TCSR(T,V) \ do { *(volatile unsigned long *)(0xfeff9400 + 8 * (T)) = (V); mb(); } while(0) #define __set_TxCKSL(T,V) \ do { *(volatile unsigned long *)(0xfeff9430 + 8 * (T)) = (V); mb(); } while(0) #define __set_TCSR_DATA(T,V) __set_TCSR(T, (V) << 24) #define __set_TxCKSL_DATA(T,V) __set_TxCKSL(T, TxCKSL_EIGHT | __TxCKSL_SELECT((V))) /* clock control register */ #define CLKC_CMODE 0x0f000000 #define CLKC_SLPL 0x000f0000 #define CLKC_P0 0x00000100 #define CLKC_CM 0x00000003 #define CLKC_CMODE_s 24 /* timer control register - non-readback mode */ #define TCTR_MODE_0 0x00000000 #define TCTR_MODE_2 0x04000000 #define TCTR_MODE_4 0x08000000 #define TCTR_MODE_5 0x0a000000 #define TCTR_RL_LATCH 0x00000000 #define TCTR_RL_RW_LOW8 0x10000000 #define TCTR_RL_RW_HIGH8 0x20000000 #define TCTR_RL_RW_LH8 0x30000000 #define TCTR_SC_CTR0 0x00000000 #define TCTR_SC_CTR1 0x40000000 #define TCTR_SC_CTR2 0x80000000 /* timer control register - readback mode */ #define TCTR_CNT0 0x02000000 #define TCTR_CNT1 0x04000000 #define TCTR_CNT2 0x08000000 #define TCTR_NSTATUS 0x10000000 #define TCTR_NCOUNT 0x20000000 #define TCTR_SC_READBACK 0xc0000000 /* timer control status registers - non-readback mode */ #define TCSRx_DATA 0xff000000 /* timer control status registers - readback mode */ #define TCSRx_OUTPUT 0x80000000 #define TCSRx_NULLCOUNT 0x40000000 #define TCSRx_RL 0x30000000 #define TCSRx_MODE 0x07000000 /* timer clock select registers */ #define TxCKSL_SELECT 0x0f000000 #define __TxCKSL_SELECT(X) ((X) << 24) #define TxCKSL_EIGHT 0xf0000000 #endif /* _ASM_TIMER_REGS_H */