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/* $OpenBSD: xheartreg.h,v 1.4 2011/07/10 17:48:25 miod Exp $ */
/*
* Copyright (c) 2008, 2011 Miodrag Vallat.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* IP30 HEART registers
*/
/* physical address in PIU mode */
#define HEART_PIU_BASE 0x000000000ff00000UL
#define HEART_MODE 0x0000
#define HEART_MEMORY_STATUS 0x0020 /* 8 32 bit registers */
#define HEART_MEMORY_VALID 0x80000000
#define HEART_MEMORY_SIZE_MASK 0x003f0000
#define HEART_MEMORY_SIZE_SHIFT 16
#define HEART_MEMORY_ADDR_MASK 0x000001ff
#define HEART_MEMORY_ADDR_SHIFT 0
#define HEART_MEMORY_UNIT_SHIFT 25 /* 32MB */
#define HEART_MICROLAN 0x00b8
/*
* Interrupt handling registers.
* The Heart supports four different interrupt targets, although only
* the two cpus are used in practice.
*/
#define HEART_IMR(s) (0x00010000 + (s) * 8)
#define HEART_ISR_SET 0x00010020
#define HEART_ISR_CLR 0x00010028
#define HEART_ISR 0x00010030
/*
* ISR bit assignments.
*/
/** Level 4 interrupt: hardware error */
#define HEART_ISR_LVL4_MASK 0xfff8000000000000UL
#define HEART_ISR_LVL4_MAX 63
/* Heart (widget 8) error */
#define HEART_ISR_WID08_ERROR 63
/* CPU bus error */
#define HEART_ISR_CPU_BUSERR(c) (59 + (c))
/* Crossbow (widget 0) error */
#define HEART_ISR_WID00_ERROR 58
/* Widget error */
#define HEART_ISR_WID0F_ERROR 57
#define HEART_ISR_WID0E_ERROR 56
#define HEART_ISR_WID0D_ERROR 55
#define HEART_ISR_WID0C_ERROR 54
#define HEART_ISR_WID0B_ERROR 53
#define HEART_ISR_WID0A_ERROR 52
#define HEART_ISR_WID09_ERROR 51
#define HEART_ISR_WID_ERROR(w) \
((w) == 0 ? HEART_ISR_WID00_ERROR : \
(w) == 8 ? HEART_ISR_WID08_ERROR : HEART_ISR_WID09_ERROR + (w) - 9)
/** Level 3 interrupt: heart counter/timer */
#define HEART_ISR_LVL3_MASK 0x0004000000000000UL
#define HEART_ISR_LVL3_MAX 50
/* Crossbow clock */
#define HEART_ISR_HEARTCLOCK 50
/** Level 2 interrupt */
#define HEART_ISR_LVL2_MASK 0x0003ffff00000000UL
#define HEART_ISR_LVL2_MAX 49
/* IPI */
#define HEART_ISR_IPI(c) (46 + (c))
/* Debugger interrupts */
#define HEART_ISR_DBG(c) (42 + (c))
/* Power switch */
#define HEART_ISR_POWER 41
/* 40-32 freely available */
/** Level 1 interrupt */
#define HEART_ISR_LVL1_MASK 0x00000000ffff0000UL
#define HEART_ISR_LVL1_MAX 31
/* 31-16 freely available */
/** Level 0 interrupt */
#define HEART_ISR_LVL0_MASK 0x000000000000ffffUL
#define HEART_ISR_LVL0_MAX 15
/* 15-3 freely available */
#define HEART_INTR_WIDGET_MAX 15
#define HEART_INTR_WIDGET_MIN 3
#define HEART_NINTS 64
/*
* Crossbow clock, as a free-running counter.
* The clock rate is 400 MHz, with the counter running at 1/32 of the clock,
* i.e. 12.5 MHz (80 nS period)
*/
#define HEART_CTR_VALUE 0x00020000 /* 52-bit counter value, r/o */
#define HEART_CTR_LIMIT 0x00030000 /* 24-bit limit value */
#define HEART_CTR_TRIGGER 0x00040000
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