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/***********************license start***************
* Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* * Neither the name of Cavium Networks nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS
* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
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*
*
* For any questions regarding licensing please contact marketing@caviumnetworks.com
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***********************license end**************************************/
/*
* This product includes software developed by the University of
* California, Berkeley and its contributors."
*/
/* $FreeBSD: release/9.1.0/sys/mips/cavium/octeon_pcmap_regs.h 210311 2010-07-20 19:25:11Z jmallett $ */
#ifndef __OCTEON_PCMAP_REGS_H__
#define __OCTEON_PCMAP_REGS_H__
#ifndef LOCORE
/*
* Utility inlines & macros
*/
#if defined(__mips_n64)
#define oct_write64(a, v) (*(volatile uint64_t *)(a) = (uint64_t)(v))
#define oct_write8_x8(a, v) (*(volatile uint8_t *)(a) = (uint8_t)(v))
#define OCT_READ(n, t) \
static inline t oct_read ## n(uintptr_t a) \
{ \
volatile t *p = (volatile t *)a; \
return (*p); \
}
OCT_READ(8, uint8_t);
OCT_READ(16, uint16_t);
OCT_READ(32, uint32_t);
OCT_READ(64, uint64_t);
#elif defined(__mips_n32) || defined(__mips_o32)
#if defined(__mips_n32)
static inline void oct_write64 (uint64_t csr_addr, uint64_t val64)
{
__asm __volatile (
".set push\n"
".set mips64\n"
"sd %0, 0(%1)\n"
".set pop\n"
:
: "r"(val64), "r"(csr_addr));
}
static inline void oct_write8_x8 (uint64_t csr_addr, uint8_t val8)
{
__asm __volatile (
".set push\n"
".set mips64\n"
"sb %0, 0(%1)\n"
".set pop\n"
:
: "r"(val8), "r"(csr_addr));
}
#define OCT_READ(n, t, insn) \
static inline t oct_read ## n(uint64_t a) \
{ \
uint64_t tmp; \
\
__asm __volatile ( \
".set push\n" \
".set mips64\n" \
insn "\t%0, 0(%1)\n" \
".set pop\n" \
: "=r"(tmp) \
: "r"(a)); \
return ((t)tmp); \
}
OCT_READ(8, uint8_t, "lb");
OCT_READ(16, uint16_t, "lh");
OCT_READ(32, uint32_t, "lw");
OCT_READ(64, uint64_t, "ld");
#else
/*
* XXX
* Add o32 variants that load the address into a register and the result out
* of a register properly, and simply disable interrupts before and after and
* hope that we don't need to refill or modify the TLB to access the address.
* I'd be a lot happier if csr_addr were a physical address and we mapped it
* into XKPHYS here so that we could guarantee that interrupts were the only
* kind of exception we needed to worry about.
*
* Also, some of this inline assembly is needlessly verbose. Oh, well.
*/
static inline void oct_write64 (uint64_t csr_addr, uint64_t val64)
{
uint32_t csr_addrh = csr_addr >> 32;
uint32_t csr_addrl = csr_addr;
uint32_t valh = val64 >> 32;
uint32_t vall = val64;
uint32_t tmp1;
uint32_t tmp2;
uint32_t tmp3;
register_t sr;
sr = intr_disable();
__asm __volatile (
".set push\n"
".set mips64\n"
".set noreorder\n"
".set noat\n"
"dsll %0, %3, 32\n"
"dsll %1, %5, 32\n"
"dsll %2, %4, 32\n"
"dsrl %2, %2, 32\n"
"or %0, %0, %2\n"
"dsll %2, %6, 32\n"
"dsrl %2, %2, 32\n"
"or %1, %1, %2\n"
"sd %0, 0(%1)\n"
".set pop\n"
: "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3)
: "r" (valh), "r" (vall), "r" (csr_addrh), "r" (csr_addrl));
intr_restore(sr);
}
static inline void oct_write8_x8 (uint64_t csr_addr, uint8_t val8)
{
uint32_t csr_addrh = csr_addr >> 32;
uint32_t csr_addrl = csr_addr;
uint32_t tmp1;
uint32_t tmp2;
register_t sr;
sr = intr_disable();
__asm __volatile (
".set push\n"
".set mips64\n"
".set noreorder\n"
".set noat\n"
"dsll %0, %3, 32\n"
"dsll %1, %4, 32\n"
"dsrl %1, %1, 32\n"
"or %0, %0, %1\n"
"sb %2, 0(%0)\n"
".set pop\n"
: "=&r" (tmp1), "=&r" (tmp2)
: "r" (val8), "r" (csr_addrh), "r" (csr_addrl));
intr_restore(sr);
}
#define OCT_READ(n, t, insn) \
static inline t oct_read ## n(uint64_t csr_addr) \
{ \
uint32_t csr_addrh = csr_addr >> 32; \
uint32_t csr_addrl = csr_addr; \
uint32_t tmp1, tmp2; \
register_t sr; \
\
sr = intr_disable(); \
\
__asm __volatile ( \
".set push\n" \
".set mips64\n" \
".set noreorder\n" \
".set noat\n" \
"dsll %1, %2, 32\n" \
"dsll %0, %3, 32\n" \
"dsrl %0, %0, 32\n" \
"or %1, %1, %0\n" \
"lb %1, 0(%1)\n" \
".set pop\n" \
: "=&r" (tmp1), "=&r" (tmp2) \
: "r" (csr_addrh), "r" (csr_addrl)); \
\
intr_restore(sr); \
\
return ((t)tmp2); \
}
OCT_READ(8, uint8_t, "lb");
OCT_READ(16, uint16_t, "lh");
OCT_READ(32, uint32_t, "lw");
static inline uint64_t oct_read64 (uint64_t csr_addr)
{
uint32_t csr_addrh = csr_addr >> 32;
uint32_t csr_addrl = csr_addr;
uint32_t valh;
uint32_t vall;
register_t sr;
sr = intr_disable();
__asm __volatile (
".set push\n"
".set mips64\n"
".set noreorder\n"
".set noat\n"
"dsll %0, %2, 32\n"
"dsll %1, %3, 32\n"
"dsrl %1, %1, 32\n"
"or %0, %0, %1\n"
"ld %1, 0(%0)\n"
"dsrl %0, %1, 32\n"
"dsll %1, %1, 32\n"
"dsrl %1, %1, 32\n"
".set pop\n"
: "=&r" (valh), "=&r" (vall)
: "r" (csr_addrh), "r" (csr_addrl));
intr_restore(sr);
return ((uint64_t)valh << 32) | vall;
}
#endif
#endif
#define oct_write64_int64(a, v) (oct_write64(a, (int64_t)(v)))
/*
* Most write bus transactions are actually 64-bit on Octeon.
*/
static inline void oct_write8 (uint64_t csr_addr, uint8_t val8)
{
oct_write64(csr_addr, (uint64_t) val8);
}
static inline void oct_write16 (uint64_t csr_addr, uint16_t val16)
{
oct_write64(csr_addr, (uint64_t) val16);
}
static inline void oct_write32 (uint64_t csr_addr, uint32_t val32)
{
oct_write64(csr_addr, (uint64_t) val32);
}
#define oct_readint32(a) ((int32_t)oct_read32((a)))
/*
* octeon_machdep.c
*
* Direct to Board Support level.
*/
extern void octeon_led_write_char(int char_position, char val);
extern void octeon_led_write_hexchar(int char_position, char hexval);
extern void octeon_led_write_hex(uint32_t wl);
extern void octeon_led_write_string(const char *str);
extern void octeon_reset(void);
extern void octeon_led_write_char0(char val);
extern void octeon_led_run_wheel(int *pos, int led_position);
extern void octeon_debug_symbol(void);
extern void octeon_ciu_reset(void);
extern int octeon_is_simulation(void);
#endif /* LOCORE */
/*
* EBT3000 LED Unit
*/
#define OCTEON_CHAR_LED_BASE_ADDR (0x1d020000 | (0x1ffffffffull << 31))
#endif /* !OCTEON_PCMAP_REGS_H__ */