227 lines
6.3 KiB
C
227 lines
6.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* obio.h: Some useful locations in 0xFXXXXXXXX PA obio space on sun4d.
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*
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* Copyright (C) 1997 Jakub Jelinek <jj@sunsite.mff.cuni.cz>
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*/
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#ifndef _SPARC_OBIO_H
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#define _SPARC_OBIO_H
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#include <asm/asi.h>
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/* This weird monster likes to use the very upper parts of
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36bit PA for these things :) */
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/* CSR space (for each XDBUS)
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* ------------------------------------------------------------------------
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* | 0xFE | DEVID | | XDBUS ID | |
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* ------------------------------------------------------------------------
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* 35 28 27 20 19 10 9 8 7 0
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*/
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#define CSR_BASE_ADDR 0xe0000000
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#define CSR_CPU_SHIFT (32 - 4 - 5)
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#define CSR_XDBUS_SHIFT 8
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#define CSR_BASE(cpu) (((CSR_BASE_ADDR >> CSR_CPU_SHIFT) + cpu) << CSR_CPU_SHIFT)
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/* ECSR space (not for each XDBUS)
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* ------------------------------------------------------------------------
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* | 0xF | DEVID[7:1] | |
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* ------------------------------------------------------------------------
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* 35 32 31 25 24 0
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*/
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#define ECSR_BASE_ADDR 0x00000000
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#define ECSR_CPU_SHIFT (32 - 5)
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#define ECSR_DEV_SHIFT (32 - 8)
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#define ECSR_BASE(cpu) ((cpu) << ECSR_CPU_SHIFT)
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#define ECSR_DEV_BASE(devid) ((devid) << ECSR_DEV_SHIFT)
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/* Bus Watcher */
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#define BW_LOCAL_BASE 0xfff00000
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#define BW_CID 0x00000000
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#define BW_DBUS_CTRL 0x00000008
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#define BW_DBUS_DATA 0x00000010
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#define BW_CTRL 0x00001000
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#define BW_INTR_TABLE 0x00001040
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#define BW_INTR_TABLE_CLEAR 0x00001080
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#define BW_PRESCALER 0x000010c0
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#define BW_PTIMER_LIMIT 0x00002000
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#define BW_PTIMER_COUNTER2 0x00002004
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#define BW_PTIMER_NDLIMIT 0x00002008
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#define BW_PTIMER_CTRL 0x0000200c
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#define BW_PTIMER_COUNTER 0x00002010
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#define BW_TIMER_LIMIT 0x00003000
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#define BW_TIMER_COUNTER2 0x00003004
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#define BW_TIMER_NDLIMIT 0x00003008
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#define BW_TIMER_CTRL 0x0000300c
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#define BW_TIMER_COUNTER 0x00003010
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/* BW Control */
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#define BW_CTRL_USER_TIMER 0x00000004 /* Is User Timer Free run enabled */
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/* Boot Bus */
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#define BB_LOCAL_BASE 0xf0000000
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#define BB_STAT1 0x00100000
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#define BB_STAT2 0x00120000
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#define BB_STAT3 0x00140000
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#define BB_LEDS 0x002e0000
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/* Bits in BB_STAT2 */
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#define BB_STAT2_AC_INTR 0x04 /* Aiee! 5ms and power is gone... */
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#define BB_STAT2_TMP_INTR 0x10 /* My Penguins are burning. Are you able to smell it? */
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#define BB_STAT2_FAN_INTR 0x20 /* My fan refuses to work */
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#define BB_STAT2_PWR_INTR 0x40 /* On SC2000, one of the two ACs died. Ok, we go on... */
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#define BB_STAT2_MASK (BB_STAT2_AC_INTR|BB_STAT2_TMP_INTR|BB_STAT2_FAN_INTR|BB_STAT2_PWR_INTR)
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/* Cache Controller */
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#define CC_BASE 0x1F00000
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#define CC_DATSTREAM 0x1F00000 /* Data stream register */
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#define CC_DATSIZE 0x1F0003F /* Size */
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#define CC_SRCSTREAM 0x1F00100 /* Source stream register */
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#define CC_DESSTREAM 0x1F00200 /* Destination stream register */
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#define CC_RMCOUNT 0x1F00300 /* Count of references and misses */
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#define CC_IPEN 0x1F00406 /* Pending Interrupts */
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#define CC_IMSK 0x1F00506 /* Interrupt Mask */
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#define CC_ICLR 0x1F00606 /* Clear pending Interrupts */
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#define CC_IGEN 0x1F00704 /* Generate Interrupt register */
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#define CC_STEST 0x1F00804 /* Internal self-test */
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#define CC_CREG 0x1F00A04 /* Control register */
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#define CC_SREG 0x1F00B00 /* Status register */
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#define CC_RREG 0x1F00C04 /* Reset register */
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#define CC_EREG 0x1F00E00 /* Error code register */
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#define CC_CID 0x1F00F04 /* Component ID */
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#ifndef __ASSEMBLY__
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static inline int bw_get_intr_mask(int sbus_level)
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{
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int mask;
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__asm__ __volatile__ ("lduha [%1] %2, %0" :
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"=r" (mask) :
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"r" (BW_LOCAL_BASE + BW_INTR_TABLE + (sbus_level << 3)),
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"i" (ASI_M_CTL));
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return mask;
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}
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static inline void bw_clear_intr_mask(int sbus_level, int mask)
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{
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__asm__ __volatile__ ("stha %0, [%1] %2" : :
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"r" (mask),
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"r" (BW_LOCAL_BASE + BW_INTR_TABLE_CLEAR + (sbus_level << 3)),
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"i" (ASI_M_CTL));
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}
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static inline unsigned int bw_get_prof_limit(int cpu)
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{
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unsigned int limit;
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__asm__ __volatile__ ("lda [%1] %2, %0" :
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"=r" (limit) :
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"r" (CSR_BASE(cpu) + BW_PTIMER_LIMIT),
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"i" (ASI_M_CTL));
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return limit;
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}
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static inline void bw_set_prof_limit(int cpu, unsigned int limit)
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{
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__asm__ __volatile__ ("sta %0, [%1] %2" : :
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"r" (limit),
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"r" (CSR_BASE(cpu) + BW_PTIMER_LIMIT),
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"i" (ASI_M_CTL));
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}
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static inline unsigned int bw_get_ctrl(int cpu)
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{
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unsigned int ctrl;
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__asm__ __volatile__ ("lda [%1] %2, %0" :
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"=r" (ctrl) :
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"r" (CSR_BASE(cpu) + BW_CTRL),
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"i" (ASI_M_CTL));
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return ctrl;
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}
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static inline void bw_set_ctrl(int cpu, unsigned int ctrl)
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{
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__asm__ __volatile__ ("sta %0, [%1] %2" : :
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"r" (ctrl),
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"r" (CSR_BASE(cpu) + BW_CTRL),
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"i" (ASI_M_CTL));
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}
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static inline unsigned int cc_get_ipen(void)
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{
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unsigned int pending;
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__asm__ __volatile__ ("lduha [%1] %2, %0" :
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"=r" (pending) :
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"r" (CC_IPEN),
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"i" (ASI_M_MXCC));
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return pending;
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}
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static inline void cc_set_iclr(unsigned int clear)
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{
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__asm__ __volatile__ ("stha %0, [%1] %2" : :
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"r" (clear),
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"r" (CC_ICLR),
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"i" (ASI_M_MXCC));
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}
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static inline unsigned int cc_get_imsk(void)
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{
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unsigned int mask;
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__asm__ __volatile__ ("lduha [%1] %2, %0" :
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"=r" (mask) :
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"r" (CC_IMSK),
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"i" (ASI_M_MXCC));
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return mask;
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}
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static inline void cc_set_imsk(unsigned int mask)
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{
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__asm__ __volatile__ ("stha %0, [%1] %2" : :
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"r" (mask),
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"r" (CC_IMSK),
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"i" (ASI_M_MXCC));
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}
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static inline unsigned int cc_get_imsk_other(int cpuid)
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{
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unsigned int mask;
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__asm__ __volatile__ ("lduha [%1] %2, %0" :
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"=r" (mask) :
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"r" (ECSR_BASE(cpuid) | CC_IMSK),
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"i" (ASI_M_CTL));
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return mask;
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}
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static inline void cc_set_imsk_other(int cpuid, unsigned int mask)
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{
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__asm__ __volatile__ ("stha %0, [%1] %2" : :
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"r" (mask),
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"r" (ECSR_BASE(cpuid) | CC_IMSK),
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"i" (ASI_M_CTL));
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}
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static inline void cc_set_igen(unsigned int gen)
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{
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__asm__ __volatile__ ("sta %0, [%1] %2" : :
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"r" (gen),
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"r" (CC_IGEN),
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"i" (ASI_M_MXCC));
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}
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#endif /* !__ASSEMBLY__ */
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#endif /* !(_SPARC_OBIO_H) */
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