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| -rw-r--r-- | cpukit/score/cpu/epiphany/include/rtems/score/epiphany-utility.h | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/cpukit/score/cpu/epiphany/include/rtems/score/epiphany-utility.h b/cpukit/score/cpu/epiphany/include/rtems/score/epiphany-utility.h deleted file mode 100644 index 10426dc94d..0000000000 --- a/cpukit/score/cpu/epiphany/include/rtems/score/epiphany-utility.h +++ /dev/null @@ -1,180 +0,0 @@ -/** - * @file - * - * @addtogroup RTEMSScoreCPU - * - * @brief This include file contains macros pertaining to the - * Epiphany processor family. - */ - -/* - * Copyright (c) 2015 University of York. - * Hesham ALMatary <hmka501@york.ac.uk> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef _EPIPHANY_UTILITY_H -#define _EPIPHANY_UTILITY_H - -/* eCore IRQs */ -typedef enum -{ - START, - SW_EXCEPTION, - MEM_FAULT, - TIMER0, - TIMER1, - SMP_MESSAGE, - DMA0, - DMA1, - SER, -} EPIPHANY_IRQ_PER_CORE_T; - -/* Per-core IO mapped register addresses - * @see Epiphany architecture reference. - */ -#define EPIPHANY_PER_CORE_REG_CONFIG 0xF0400 -#define EPIPHANY_PER_CORE_REG_STATUS 0xF0404 -#define EPIPHANY_PER_CORE_REG_PC 0xF0408 -#define EPIPHANY_PER_CORE_REG_DEBUGSTATUS 0xF040C -#define EPIPHANY_PER_CORE_REG_LC 0xF0414 -#define EPIPHANY_PER_CORE_REG_LS 0xF0418 -#define EPIPHANY_PER_CORE_REG_LE 0xF041C -#define EPIPHANY_PER_CORE_REG_IRET 0xF0420 -#define EPIPHANY_PER_CORE_REG_IMASK 0xF0424 -#define EPIPHANY_PER_CORE_REG_ILAT 0xF0428 -#define EPIPHANY_PER_CORE_REG_ILATST 0xF042C -#define EPIPHANY_PER_CORE_REG_ILATCL 0xF0430 -#define EPIPHANY_PER_CORE_REG_IPEND 0xF0434 -#define EPIPHANY_PER_CORE_REG_FSTATUS 0xF0440 -#define EPIPHANY_PER_CORE_REG_DEBUGCMD 0xF0448 -#define EPIPHANY_PER_CORE_REG_RESETCORE 0xF070C - -/* Event timer registers */ -#define EPIPHANY_PER_CORE_REG_CTIMER0 0xF0438 -#define EPIPHANY_PER_CORE_REG_CTIMER1 0xF043C - -/* Processor control registers */ -#define EPIPHANY_PER_CORE_REG_MEMSTATUS 0xF0604 -#define EPIPHANY_PER_CORE_REG_MEMPROTECT 0xF0608 - -/* DMA Registers */ -#define EPIPHANY_PER_CORE_REG_DMA0CONFIG 0xF0500 -#define EPIPHANY_PER_CORE_REG_DMA0STRIDE 0xF0504 -#define EPIPHANY_PER_CORE_REG_DMA0COUNT 0xF0508 -#define EPIPHANY_PER_CORE_REG_DMA0SRCADDR 0xF050C -#define EPIPHANY_PER_CORE_REG_DMA0DSTADDR 0xF0510 -#define EPIPHANY_PER_CORE_REG_DMA0AUTO0 0xF0514 -#define EPIPHANY_PER_CORE_REG_DMA0AUTO1 0xF0518 -#define EPIPHANY_PER_CORE_REG_DMA0STATUS 0xF051C -#define EPIPHANY_PER_CORE_REG_DMA1CONFIG 0xF0520 -#define EPIPHANY_PER_CORE_REG_DMA1STRIDE 0xF0524 -#define EPIPHANY_PER_CORE_REG_DMA1COUNT 0xF0528 -#define EPIPHANY_PER_CORE_REG_DMA1SRCADDR 0xF052C -#define EPIPHANY_PER_CORE_REG_DMA1DSTADDR 0xF0530 -#define EPIPHANY_PER_CORE_REG_DMA1AUTO0 0xF0534 -#define EPIPHANY_PER_CORE_REG_DMA1AUTO1 0xF0538 -#define EPIPHANY_PER_CORE_REG_DMA1STATUS 0xF053C - -/* Mesh Node Control Registers */ -#define EPIPHANY_PER_CORE_REG_MESHCONFIG 0xF0700 -#define EPIPHANY_PER_CORE_REG_COREID 0xF0704 -#define EPIPHANY_PER_CORE_REG_MULTICAST 0xF0708 -#define EPIPHANY_PER_CORE_REG_CMESHROUTE 0xF0710 -#define EPIPHANY_PER_CORE_REG_XMESHROUTE 0xF0714 -#define EPIPHANY_PER_CORE_REG_RMESHROUTE 0xF0718 - -/* This macros constructs an address space of epiphany cores - * from their IDs. - */ -#define EPIPHANY_COREID_TO_MSB_ADDR(id) (id) << 20 - -/* Construct a complete/absolute IO mapped address register from - * core ID and register name - */ -#define EPIPHANY_GET_REG_ABSOLUTE_ADDR(coreid, reg) \ - (EPIPHANY_COREID_TO_MSB_ADDR(coreid) | (reg)) - -#define EPIPHANY_REG(reg) (uint32_t *) (reg) - -/* Read register with its absolute address */ -static inline uint32_t read_epiphany_reg(volatile uint32_t reg_addr) -{ - return *(EPIPHANY_REG(reg_addr)); -} - -/* Write register with its abolute address */ -static inline void write_epiphany_reg(volatile uint32_t reg_addr, uint32_t val) -{ - *(EPIPHANY_REG(reg_addr)) = val; -} - -/* Epiphany uses 12 bits for defining core IDs, while RTEMS uses - * linear IDs. The following function converts RTEMS linear IDs to - * Epiphany corresponding ones - */ -static const uint32_t map[16] = -{ - 0x808, 0x809, 0x80A, 0x80B, - 0x848, 0x849, 0x84A, 0x84B, - 0x888, 0x889, 0x88A, 0x88B, - 0x8C8, 0x8C9, 0x8CA, 0x8CB -}; - -static inline uint32_t rtems_coreid_to_epiphany_map(uint32_t rtems_id) -{ - return map[rtems_id]; -} - -/* Epiphany uses 12 bits for defining core IDs, while RTEMS uses - * linear IDs. The following function is used to map Epiphany IDs to - * RTEMS linear IDs. - */ -static inline uint32_t epiphany_coreid_to_rtems_map(uint32_t epiphany_id) -{ - register uint32_t coreid asm ("r17") = epiphany_id; - - /* Mapping from Epiphany IDs to 0-16 IDs macro */ - __asm__ __volatile__(" \ - movfs r17, coreid \ - mov r19, #0x003 \ - mov r20, #0x0F0 \ - and r19, r17, r19 \ - and r20, r17, r20 \ - lsr r20, r20, #4 \ - add r17, r19, r20 \ - "); - - /* coreid or r17 now holds the rtems core id */ - return coreid; -} - -static inline uint32_t _Epiphany_Get_current_processor(void) -{ - uint32_t coreid; - - asm volatile ("movfs %0, coreid" : "=r" (coreid): ); - - return epiphany_coreid_to_rtems_map(coreid); -} -#endif /* _EPIPHANY_UTILITY_H */ |