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use symlinks for SW IP BSP files
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@ -1,126 +0,0 @@
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/******************************************************************************
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* *
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* License Agreement *
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* *
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* Copyright (c) 2015 Altera Corporation, San Jose, California, USA. *
|
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* All rights reserved. *
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||||
* *
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a *
|
||||
* copy of this software and associated documentation files (the "Software"), *
|
||||
* to deal in the Software without restriction, including without limitation *
|
||||
* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
|
||||
* and/or sell copies of the Software, and to permit persons to whom the *
|
||||
* Software is furnished to do so, subject to the following conditions: *
|
||||
* *
|
||||
* The above copyright notice and this permission notice shall be included in *
|
||||
* all copies or substantial portions of the Software. *
|
||||
* *
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||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
|
||||
* DEALINGS IN THE SOFTWARE. *
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||||
* *
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||||
* This agreement shall be governed in all respects by the laws of the State *
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||||
* of California and by the laws of the United States of America. *
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* *
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******************************************************************************/
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#ifndef __ALT_EPCQ_CONTROLLER_H__
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#define __ALT_EPCQ_CONTROLLER_H__
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#include "alt_types.h"
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#include "sys/alt_flash_dev.h"
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#include "sys/alt_llist.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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/**
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* Description of the EPCQ controller
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*/
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typedef struct alt_epcq_controller_dev
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{
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alt_flash_dev dev;
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alt_u32 data_base; /** base address of data slave */
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alt_u32 data_end; /** end address of data slave (not inclusive) */
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alt_u32 csr_base; /** base address of CSR slave */
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alt_u32 size_in_bytes; /** size of memory in bytes */
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alt_u32 is_epcs; /** 1 if device is an EPCS device */
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alt_u32 number_of_sectors; /** number of flash sectors */
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alt_u32 sector_size; /** size of each flash sector */
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alt_u32 page_size; /** page size */
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alt_u32 silicon_id; /** ID of silicon used with EPCQ IP */
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} alt_epcq_controller_dev;
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/**
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* Macros used by alt_sys_init.c to create data storage for driver instance
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*/
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#define ALTERA_EPCQ_CONTROLLER_MOD_AVL_MEM_AVL_CSR_INSTANCE(epcq_name, avl_mem, avl_csr, epcq_dev) \
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alt_epcq_controller_dev epcq_dev = \
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{ \
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.dev = { \
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.llist = ALT_LLIST_ENTRY, \
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.name = avl_mem##_NAME, \
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.write = alt_epcq_controller_write, \
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.read = alt_epcq_controller_read, \
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.get_info = alt_epcq_controller_get_info, \
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.erase_block = alt_epcq_controller_erase_block, \
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.write_block = alt_epcq_controller_write_block, \
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.base_addr = ((void*)(avl_mem##_BASE)), \
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.length = ((int)(avl_mem##_SPAN)), \
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.lock = alt_epcq_controller_lock , \
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}, \
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.data_base = ((alt_u32)(avl_mem##_BASE)), \
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.data_end = ((alt_u32)(avl_mem##_BASE) + (alt_u32)(avl_mem##_SPAN)), \
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.csr_base = ((alt_u32)(avl_csr##_BASE)), \
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.size_in_bytes = ((alt_u32)(avl_mem##_SPAN)), \
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.is_epcs = ((alt_u32)(avl_mem##_IS_EPCS)), \
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.number_of_sectors = ((alt_u32)(avl_mem##_NUMBER_OF_SECTORS)), \
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.sector_size = ((alt_u32)(avl_mem##_SECTOR_SIZE)), \
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.page_size = ((alt_u32)(avl_mem##_PAGE_SIZE)) , \
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}
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/*
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Public API
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Refer to Using Flash Devices in the
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Developing Programs Using the Hardware Abstraction Layer chapter
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of the Nios II Software Developer's Handbook.
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*/
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int alt_epcq_controller_read(alt_flash_dev *flash_info, int offset, void *dest_addr, int length);
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int alt_epcq_controller_get_info(alt_flash_fd *fd, flash_region **info, int *number_of_regions);
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int alt_epcq_controller_erase_block(alt_flash_dev *flash_info, int block_offset);
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int alt_epcq_controller_write_block(alt_flash_dev *flash_info, int block_offset, int data_offset, const void *data, int length);
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int alt_epcq_controller_write(alt_flash_dev *flash_info, int offset, const void *src_addr, int length);
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int alt_epcq_controller_lock(alt_flash_dev *flash_info, alt_u32 sectors_to_lock);
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/*
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* Initialization function
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*/
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extern alt_32 altera_epcq_controller_init(alt_epcq_controller_dev *dev);
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/*
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* alt_sys_init.c will call this macro automatically initialize the driver instance
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*/
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#define ALTERA_EPCQ_CONTROLLER_MOD_INIT(name, dev) \
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altera_epcq_controller_init(&dev);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __ALT_EPCQ_CONTROLLER_H__ */
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@ -0,0 +1 @@
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../../../../ip/altera_epcq_controller_mod/HAL/inc/altera_epcq_controller_mod.h
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@ -1,260 +0,0 @@
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/******************************************************************************
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* *
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* License Agreement *
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* *
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* Copyright (c) 2014 Altera Corporation, San Jose, California, USA. *
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* All rights reserved. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
|
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* copy of this software and associated documentation files (the "Software"), *
|
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* to deal in the Software without restriction, including without limitation *
|
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
|
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* and/or sell copies of the Software, and to permit persons to whom the *
|
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* Software is furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in *
|
||||
* all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
|
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
|
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
|
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
|
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
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* DEALINGS IN THE SOFTWARE. *
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* *
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* This agreement shall be governed in all respects by the laws of the State *
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* of California and by the laws of the United States of America. *
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* *
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******************************************************************************/
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#ifndef __ALTERA_EPCQ_CONTROLLER_REGS_H__
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#define __ALTERA_EPCQ_CONTROLLER_REGS_H__
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#include <io.h>
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/*
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* EPCQ_RD_STATUS register offset
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*
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* The EPCQ_RD_STATUS register contains information from the read status
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* register operation. A full description of the register can be found in the
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* data sheet,
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*
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*/
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#define ALTERA_EPCQ_CONTROLLER_STATUS_REG (0x0)
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/*
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* EPCQ_RD_STATUS register access macros
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*/
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#define IOADDR_ALTERA_EPCQ_CONTROLLER_STATUS(base) \
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__IO_CALC_ADDRESS_DYNAMIC(base, ALTERA_EPCQ_CONTROLLER_STATUS_REG)
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#define IORD_ALTERA_EPCQ_CONTROLLER_STATUS(base) \
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IORD_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_STATUS_REG)
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#define IOWR_ALTERA_EPCQ_CONTROLLER_STATUS(base, data) \
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IOWR_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_STATUS_REG, data)
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/*
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* EPCQ_RD_STATUS register description macros
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*/
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/** Write in progress bit */
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#define ALTERA_EPCQ_CONTROLLER_STATUS_WIP_MASK (0x00000001)
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#define ALTERA_EPCQ_CONTROLLER_STATUS_WIP_AVAILABLE (0x00000000)
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#define ALTERA_EPCQ_CONTROLLER_STATUS_WIP_BUSY (0x00000001)
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/** When to time out a poll of the write in progress bit */
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/* 0.7 sec time out */
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#define ALTERA_EPCQ_CONTROLLER_1US_TIMEOUT_VALUE 700000
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/*
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* EPCQ_RD_SID register offset
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*
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* The EPCQ_RD_SID register contains the information from the read silicon ID
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* operation and can be used to determine what type of EPCS device we have.
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* Only support in EPCS16 and EPCS64.
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*
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* This register is valid only if the device is an EPCS.
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*
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*/
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#define ALTERA_EPCQ_CONTROLLER_SID_REG (0x4)
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/*
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* EPCQ_RD_SID register access macros
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*/
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#define IOADDR_ALTERA_EPCQ_CONTROLLER_SID(base) \
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__IO_CALC_ADDRESS_DYNAMIC(base, ALTERA_EPCQ_CONTROLLER_SID_REG)
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#define IORD_ALTERA_EPCQ_CONTROLLER_SID(base) \
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IORD_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_SID_REG)
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#define IOWR_ALTERA_EPCQ_CONTROLLER_SID(base, data) \
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IOWR_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_SID_REG, data)
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/*
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* EPCQ_RD_SID register description macros
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*
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* Specific device values obtained from Table 14 of:
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* "Serial Configuration (EPCS) Devices Datasheet"
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*/
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#define ALTERA_EPCQ_CONTROLLER_SID_MASK (0x000000FF)
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#define ALTERA_EPCQ_CONTROLLER_SID_EPCS16 (0x00000014)
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#define ALTERA_EPCQ_CONTROLLER_SID_EPCS64 (0x00000016)
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#define ALTERA_EPCQ_CONTROLLER_SID_EPCS128 (0x00000018)
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/*
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* EPCQ_RD_RDID register offset
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*
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* The EPCQ_RD_RDID register contains the information from the read memory
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* capacity operation and can be used to determine what type of EPCQ device
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* we have.
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*
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* This register is only valid if the device is an EPCQ.
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*
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*/
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#define ALTERA_EPCQ_CONTROLLER_RDID_REG (0x8)
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/*
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* EPCQ_RD_RDID register access macros
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*/
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#define IOADDR_ALTERA_EPCQ_CONTROLLER_RDID(base) \
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__IO_CALC_ADDRESS_DYNAMIC(base, ALTERA_EPCQ_CONTROLLER_RDID_REG)
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#define IORD_ALTERA_EPCQ_CONTROLLER_RDID(base) \
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IORD_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_RDID_REG)
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#define IOWR_ALTERA_EPCQ_CONTROLLER_RDID(base, data) \
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IOWR_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_RDID_REG, data)
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/*
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* EPCQ_RD_RDID register description macros
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*
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* Specific device values obtained from Table 28 of:
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* "Quad-Serial Configuration (EPCQ (www.altera.com/literature/hb/cfg/cfg_cf52012.pdf))
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* Devices Datasheet"
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*/
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#define ALTERA_EPCQ_CONTROLLER_RDID_MASK (0x000000FF)
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#define ALTERA_EPCQ_CONTROLLER_RDID_EPCQ16 (0x00000015)
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#define ALTERA_EPCQ_CONTROLLER_RDID_EPCQ32 (0x00000016)
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#define ALTERA_EPCQ_CONTROLLER_RDID_EPCQ64 (0x00000017)
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#define ALTERA_EPCQ_CONTROLLER_RDID_EPCQ128 (0x00000018)
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#define ALTERA_EPCQ_CONTROLLER_RDID_EPCQ256 (0x00000019)
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#define ALTERA_EPCQ_CONTROLLER_RDID_EPCQ512 (0x00000020)
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#define ALTERA_EPCQ_CONTROLLER_RDID_EPCQ1024 (0x00000021)
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/*
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* EPCQ_MEM_OP register offset
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*
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* The EPCQ_MEM_OP register is used to do memory protect and erase operations
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*
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*/
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#define ALTERA_EPCQ_CONTROLLER_MEM_OP_REG (0xC)
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/*
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* EPCQ_MEM_OP register access macros
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*/
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#define IOADDR_ALTERA_EPCQ_CONTROLLER_MEM_OP(base) \
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__IO_CALC_ADDRESS_DYNAMIC(base, ALTERA_EPCQ_CONTROLLER_MEM_OP_REG)
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#define IORD_ALTERA_EPCQ_CONTROLLER_MEM_OP(base) \
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IORD_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_MEM_OP_REG)
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#define IOWR_ALTERA_EPCQ_CONTROLLER_MEM_OP(base, data) \
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IOWR_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_MEM_OP_REG, data)
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/*
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* EPCQ_MEM_OP register description macros
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*/
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#define ALTERA_EPCQ_CONTROLLER_MEM_OP_CMD_MASK (0x00000003)
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#define ALTERA_EPCQ_CONTROLLER_MEM_OP_BULK_ERASE_CMD (0x00000001)
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#define ALTERA_EPCQ_CONTROLLER_MEM_OP_SECTOR_ERASE_CMD (0x00000002)
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#define ALTERA_EPCQ_CONTROLLER_MEM_OP_SECTOR_PROTECT_CMD (0x00000003)
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/** see datasheet for sector values */
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#define ALTERA_EPCQ_CONTROLLER_MEM_OP_SECTOR_VALUE_MASK (0x00FFFF00)
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/*
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* EPCQ_ISR register offset
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*
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* The EPCQ_ISR register is used to determine whether an invalid write or erase
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* operation triggered an interrupt
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*
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*/
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#define ALTERA_EPCQ_CONTROLLER_ISR_REG (0x10)
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/*
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* EPCQ_ISR register access macros
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*/
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#define IOADDR_ALTERA_EPCQ_CONTROLLER_ISR(base) \
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__IO_CALC_ADDRESS_DYNAMIC(base, ALTERA_EPCQ_CONTROLLER_ISR_REG)
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#define IORD_ALTERA_EPCQ_CONTROLLER_ISR(base) \
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IORD_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_ISR_REG)
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#define IOWR_ALTERA_EPCQ_CONTROLLER_ISR(base, data) \
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IOWR_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_ISR_REG, data)
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/*
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* EPCQ_ISR register description macros
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*/
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#define ALTERA_EPCQ_CONTROLLER_ISR_ILLEGAL_ERASE_MASK (0x00000001)
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#define ALTERA_EPCQ_CONTROLLER_ISR_ILLEGAL_ERASE_ACTIVE (0x00000001)
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#define ALTERA_EPCQ_CONTROLLER_ISR_ILLEGAL_WRITE_MASK (0x00000002)
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#define ALTERA_EPCQ_CONTROLLER_ISR_ILLEGAL_WRITE_ACTIVE (0x00000002)
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/*
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* EPCQ_IMR register offset
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*
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* The EPCQ_IMR register is used to mask the invalid erase or the invalid write
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* interrupts.
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*
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*/
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#define ALTERA_EPCQ_CONTROLLER_IMR_REG (0x14)
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/*
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* EPCQ_IMR register access macros
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*/
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#define IOADDR_ALTERA_EPCQ_CONTROLLER_IMR(base) \
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__IO_CALC_ADDRESS_DYNAMIC(base, ALTERA_EPCQ_CONTROLLER_IMR_REG)
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|
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#define IORD_ALTERA_EPCQ_CONTROLLER_IMR(base) \
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IORD_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_IMR_REG)
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#define IOWR_ALTERA_EPCQ_CONTROLLER_IMR(base, data) \
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IOWR_32DIRECT(base, ALTERA_EPCQ_CONTROLLER_IMR_REG, data)
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/*
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* EPCQ_IMR register description macros
|
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*/
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#define ALTERA_EPCQ_CONTROLLER_IMR_ILLEGAL_ERASE_MASK (0x00000001)
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#define ALTERA_EPCQ_CONTROLLER_IMR_ILLEGAL_ERASE_ENABLED (0x00000001)
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#define ALTERA_EPCQ_CONTROLLER_IMR_ILLEGAL_WRITE_MASK (0x00000002)
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#define ALTERA_EPCQ_CONTROLLER_IMR_ILLEGAL_WRITE_ENABLED (0x00000002)
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|
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/*
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* EPCQ_CHIP_SELECT register offset
|
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*
|
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* The EPCQ_CHIP_SELECT register is used to issue chip select
|
||||
*/
|
||||
#define ALTERA_EPCQ_CHIP_SELECT_REG (0x18)
|
||||
|
||||
/*
|
||||
* EPCQ_CHIP_SELECT register access macros
|
||||
*/
|
||||
#define IOADDR_ALTERA_EPCQ_CHIP_SELECT(base) \
|
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__IO_CALC_ADDRESS_DYNAMIC(base, ALTERA_EPCQ_CHIP_SELECT_REG)
|
||||
|
||||
#define IOWR_ALTERA_EPCQ_CHIP_SELECT(base, data) \
|
||||
IOWR_32DIRECT(base, ALTERA_EPCQ_CHIP_SELECT_REG, data)
|
||||
|
||||
/*
|
||||
* EPCQ_CHIP_SELECT register description macros
|
||||
*/
|
||||
#define ALTERA_EPCQ_CHIP1_SELECT (0x00000001)
|
||||
#define ALTERA_EPCQ_CHIP2_SELECT (0x00000002)
|
||||
#define ALTERA_EPCQ_CHIP3_SELECT (0x00000003)
|
||||
|
||||
#endif /* __ALTERA_EPCQ_CONTROLLER_REGS_H__ */
|
@ -0,0 +1 @@
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||||
../../../../ip/altera_epcq_controller_mod/inc/altera_epcq_controller_mod_regs.h
|
@ -1,33 +0,0 @@
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||||
#ifndef __I2C_OPENCORES_H__
|
||||
#define __I2C_OPENCORES_H__
|
||||
|
||||
|
||||
#include "alt_types.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#define SCL_MIN_CLKDIV 10
|
||||
|
||||
|
||||
void I2C_init(alt_u32 base,alt_u32 clk,alt_u32 speed);
|
||||
int I2C_start(alt_u32 base, alt_u32 add, alt_u32 read);
|
||||
alt_u32 I2C_read(alt_u32 base,alt_u32 last);
|
||||
alt_u32 I2C_write(alt_u32 base,alt_u8 data, alt_u32 last);
|
||||
void SPI_read(alt_u32 base, alt_u8 *rdata, int len);
|
||||
void SPI_write(alt_u32 base, alt_u8 *wdata, int len);
|
||||
#define I2C_OK (0)
|
||||
#define I2C_ACK (0)
|
||||
#define I2C_NOACK (1)
|
||||
#define I2C_ABITRATION_LOST (2)
|
||||
|
||||
#define I2C_OPENCORES_INSTANCE(name, dev) extern int alt_no_storage
|
||||
#define I2C_OPENCORES_INIT(name, dev) while (0)
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif /* __I2C_OPENCORES_H__ */
|
1
software/sys_controller_bsp/drivers/inc/i2c_opencores.h
Symbolic link
1
software/sys_controller_bsp/drivers/inc/i2c_opencores.h
Symbolic link
@ -0,0 +1 @@
|
||||
../../../../ip/i2c_opencores/HAL/inc/i2c_opencores.h
|
@ -1,77 +0,0 @@
|
||||
|
||||
|
||||
#ifndef __I2C_OPENCORES_REGS_H__
|
||||
#define __I2C_OPENCORES_REGS_H__
|
||||
|
||||
#include <io.h>
|
||||
/* prescal clock/(5*desired_SCL) */
|
||||
/* all registers are 8 bits wide but on 32 bit address boundaries.*/
|
||||
/* reg definitions take from i2c_specs.pdf in the docs folder */
|
||||
|
||||
#define IOADDR_I2C_OPENCORES_PRERLO(base) __IO_CALC_ADDRESS_NATIVE(base, 0)
|
||||
#define IORD_I2C_OPENCORES_PRERLO(base) IORD(base, 0)
|
||||
#define IOWR_I2C_OPENCORES_PRERLO(base, data) IOWR(base, 0, data)
|
||||
|
||||
|
||||
#define IOADDR_I2C_OPENCORES_PRERHI(base) __IO_CALC_ADDRESS_NATIVE(base, 0)
|
||||
#define IORD_I2C_OPENCORES_PRERHI(base) IORD(base, 1)
|
||||
#define IOWR_I2C_OPENCORES_PRERHI(base, data) IOWR(base, 1, data)
|
||||
|
||||
|
||||
#define IOADDR_I2C_OPENCORES_CTR(base) __IO_CALC_ADDRESS_NATIVE(base, 2)
|
||||
#define IORD_I2C_OPENCORES_CTR(base) IORD(base, 2)
|
||||
#define IOWR_I2C_OPENCORES_CTR(base, data) IOWR(base, 2, data)
|
||||
/* bit definitions*/
|
||||
#define I2C_OPENCORES_CTR_EN_MSK (0x80)
|
||||
#define I2C_OPENCORES_CTR_EN_OFST (7)
|
||||
#define I2C_OPENCORES_CTR_IEN_MSK (0x40)
|
||||
#define I2C_OPENCORES_CTR_IEN_OFST (6)
|
||||
|
||||
|
||||
#define IOADDR_I2C_OPENCORES_TXR(base) __IO_CALC_ADDRESS_NATIVE(base, 3)
|
||||
#define IOWR_I2C_OPENCORES_TXR(base, data) IOWR(base, 3, data)
|
||||
/* bit definitions*/
|
||||
#define I2C_OPENCORES_TXR_RD_MSK (0x1)
|
||||
#define I2C_OPENCORES_TXR_RD_OFST (0)
|
||||
#define I2C_OPENCORES_TXR_WR_MSK (0x0)
|
||||
#define I2C_OPENCORES_TXR_WR_OFST (0)
|
||||
|
||||
|
||||
#define IOADDR_I2C_OPENCORES_RXR(base) __IO_CALC_ADDRESS_NATIVE(base, 3)
|
||||
#define IORD_I2C_OPENCORES_RXR(base) IORD(base, 3)
|
||||
|
||||
|
||||
#define IOADDR_I2C_OPENCORES_CR(base) __IO_CALC_ADDRESS_NATIVE(base, 4)
|
||||
#define IOWR_I2C_OPENCORES_CR(base, data) IOWR(base, 4, data)
|
||||
/* bit definitions*/
|
||||
#define I2C_OPENCORES_CR_STA_MSK (0x80)
|
||||
#define I2C_OPENCORES_CR_STA_OFST (7)
|
||||
#define I2C_OPENCORES_CR_STO_MSK (0x40)
|
||||
#define I2C_OPENCORES_CR_STO_OFST (6)
|
||||
#define I2C_OPENCORES_CR_RD_MSK (0x20)
|
||||
#define I2C_OPENCORES_CR_RD_OFST (5)
|
||||
#define I2C_OPENCORES_CR_WR_MSK (0x10)
|
||||
#define I2C_OPENCORES_CR_WR_OFST (4)
|
||||
#define I2C_OPENCORES_CR_NACK_MSK (0x8)
|
||||
#define I2C_OPENCORES_CR_NACK_OFST (3)
|
||||
#define I2C_OPENCORES_CR_SPIM_MSK (0x4)
|
||||
#define I2C_OPENCORES_CR_SPIM_OFST (2)
|
||||
#define I2C_OPENCORES_CR_IACK_MSK (0x1)
|
||||
#define I2C_OPENCORES_CR_IACK_OFST (0)
|
||||
|
||||
|
||||
#define IOADDR_I2C_OPENCORES_SR(base) __IO_CALC_ADDRESS_NATIVE(base, 4)
|
||||
#define IORD_I2C_OPENCORES_SR(base) IORD(base, 4)
|
||||
/* bit definitions*/
|
||||
#define I2C_OPENCORES_SR_RXNACK_MSK (0x80)
|
||||
#define I2C_OPENCORES_SR_RXNACK_OFST (7)
|
||||
#define I2C_OPENCORES_SR_BUSY_MSK (0x40)
|
||||
#define I2C_OPENCORES_SR_BUSY_OFST (6)
|
||||
#define I2C_OPENCORES_SR_AL_MSK (0x20)
|
||||
#define I2C_OPENCORES_SR_AL_OFST (5)
|
||||
#define I2C_OPENCORES_SR_TIP_MSK (0x2)
|
||||
#define I2C_OPENCORES_SR_TIP_OFST (1)
|
||||
#define I2C_OPENCORES_SR_IF_MSK (0x1)
|
||||
#define I2C_OPENCORES_SR_IF_OFST (0)
|
||||
|
||||
#endif /* __I2C_OPENCORES_REGS_H__ */
|
1
software/sys_controller_bsp/drivers/inc/i2c_opencores_regs.h
Symbolic link
1
software/sys_controller_bsp/drivers/inc/i2c_opencores_regs.h
Symbolic link
@ -0,0 +1 @@
|
||||
../../../../ip/i2c_opencores/inc/i2c_opencores_regs.h
|
@ -1,136 +0,0 @@
|
||||
//
|
||||
// Copyright (C) 2015-2019 Markus Hiienkari <mhiienka@niksula.hut.fi>
|
||||
//
|
||||
// This file is part of Open Source Scan Converter project.
|
||||
//
|
||||
// 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 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
|
||||
#ifndef SC_CONFIG_REGS_H_
|
||||
#define SC_CONFIG_REGS_H_
|
||||
|
||||
#include <alt_types.h>
|
||||
|
||||
// bit-fields coded as little-endian
|
||||
typedef union {
|
||||
struct {
|
||||
alt_u16 vmax:11;
|
||||
alt_u8 interlace_flag:1;
|
||||
alt_u8 sc_rsv2:4;
|
||||
alt_u8 fpga_vsyncgen:2;
|
||||
alt_u16 vmax_tvp:11;
|
||||
alt_u8 sc_rsv:2;
|
||||
alt_u8 vsync_flag:1;
|
||||
} __attribute__((packed, __may_alias__));
|
||||
alt_u32 data;
|
||||
} sc_status_reg;
|
||||
|
||||
typedef union {
|
||||
struct {
|
||||
alt_u32 pcnt_frame:20;
|
||||
alt_u16 sc_rsv:12;
|
||||
} __attribute__((packed, __may_alias__));
|
||||
alt_u32 data;
|
||||
} sc_status2_reg;
|
||||
|
||||
typedef union {
|
||||
struct {
|
||||
alt_u16 lt_lat_result:16;
|
||||
alt_u16 lt_stb_result:12;
|
||||
alt_u8 lt_rsv:3;
|
||||
alt_u8 lt_finished:1;
|
||||
} __attribute__((packed, __may_alias__));
|
||||
alt_u32 data;
|
||||
} lt_status_reg;
|
||||
|
||||
typedef union {
|
||||
struct {
|
||||
alt_u16 h_active:11;
|
||||
alt_u16 h_backporch:9;
|
||||
alt_u8 h_synclen:8;
|
||||
alt_u8 h_l3_240x360:1;
|
||||
alt_u8 h_l5fmt:1;
|
||||
alt_u8 h_multmode:2;
|
||||
} __attribute__((packed, __may_alias__));
|
||||
alt_u32 data;
|
||||
} h_config_reg;
|
||||
|
||||
typedef union {
|
||||
struct {
|
||||
alt_u16 h_opt_startoff:10;
|
||||
alt_u8 h_opt_sample_mult:3;
|
||||
alt_u8 h_opt_sample_sel:3;
|
||||
alt_u8 h_opt_scale:3;
|
||||
alt_u16 h_mask:11;
|
||||
alt_u8 h_rsv:2;
|
||||
} __attribute__((packed, __may_alias__));
|
||||
alt_u32 data;
|
||||
} h_config2_reg;
|
||||
|
||||
typedef union {
|
||||
struct {
|
||||
alt_u16 v_active:11;
|
||||
alt_u8 v_backporch:6;
|
||||
alt_u8 v_synclen:3;
|
||||
alt_u8 v_mask:6;
|
||||
alt_u8 v_rsv:3;
|
||||
alt_u8 v_multmode:3;
|
||||
} __attribute__((packed, __may_alias__));
|
||||
alt_u32 data;
|
||||
} v_config_reg;
|
||||
|
||||
typedef union {
|
||||
struct {
|
||||
alt_u8 mask_br:4;
|
||||
alt_u8 rev_lpf_str:5;
|
||||
alt_u8 panasonic_hack:1;
|
||||
alt_u32 misc_rsv:22;
|
||||
} __attribute__((packed, __may_alias__));
|
||||
alt_u32 data;
|
||||
} misc_config_reg;
|
||||
|
||||
typedef union {
|
||||
struct {
|
||||
alt_u32 sl_l_str_arr:20;
|
||||
alt_u8 sl_l_overlay:5;
|
||||
alt_u8 sl_hybr_str:5;
|
||||
alt_u8 sl_method:1;
|
||||
alt_u8 sl_no_altern:1;
|
||||
} __attribute__((packed, __may_alias__));
|
||||
alt_u32 data;
|
||||
} sl_config_reg;
|
||||
|
||||
typedef union {
|
||||
struct {
|
||||
alt_u32 sl_c_str_arr:24;
|
||||
alt_u8 sl_c_overlay:6;
|
||||
alt_u8 sl_rsv:1;
|
||||
alt_u8 sl_altiv:1;
|
||||
} __attribute__((packed, __may_alias__));
|
||||
alt_u32 data;
|
||||
} sl_config2_reg;
|
||||
|
||||
typedef struct {
|
||||
sc_status_reg sc_status;
|
||||
sc_status2_reg sc_status2;
|
||||
lt_status_reg lt_status;
|
||||
h_config_reg h_config;
|
||||
h_config2_reg h_config2;
|
||||
v_config_reg v_config;
|
||||
misc_config_reg misc_config;
|
||||
sl_config_reg sl_config;
|
||||
sl_config2_reg sl_config2;
|
||||
} __attribute__((packed, __may_alias__)) sc_regs;
|
||||
|
||||
#endif //SC_CONFIG_REGS_H_
|
1
software/sys_controller_bsp/drivers/inc/sc_config_regs.h
Symbolic link
1
software/sys_controller_bsp/drivers/inc/sc_config_regs.h
Symbolic link
@ -0,0 +1 @@
|
||||
../../../../ip/sc_config/inc/sc_config_regs.h
|
@ -1,812 +0,0 @@
|
||||
/******************************************************************************
|
||||
* *
|
||||
* License Agreement *
|
||||
* *
|
||||
* Copyright (c) 2015 Altera Corporation, San Jose, California, USA. *
|
||||
* All rights reserved. *
|
||||
* *
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a *
|
||||
* copy of this software and associated documentation files (the "Software"), *
|
||||
* to deal in the Software without restriction, including without limitation *
|
||||
* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
|
||||
* and/or sell copies of the Software, and to permit persons to whom the *
|
||||
* Software is furnished to do so, subject to the following conditions: *
|
||||
* *
|
||||
* The above copyright notice and this permission notice shall be included in *
|
||||
* all copies or substantial portions of the Software. *
|
||||
* *
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
|
||||
* DEALINGS IN THE SOFTWARE. *
|
||||
* *
|
||||
* This agreement shall be governed in all respects by the laws of the State *
|
||||
* of California and by the laws of the United States of America. *
|
||||
* *
|
||||
******************************************************************************/
|
||||
|
||||
#include <errno.h>
|
||||
#include <io.h>
|
||||
#include <string.h>
|
||||
#include <stddef.h>
|
||||
#include "sys/param.h"
|
||||
#include "alt_types.h"
|
||||
#include "altera_epcq_controller_mod_regs.h"
|
||||
#include "altera_epcq_controller_mod.h"
|
||||
#include "priv/alt_busy_sleep.h"
|
||||
#include "sys/alt_debug.h"
|
||||
#include "sys/alt_cache.h"
|
||||
|
||||
|
||||
ALT_INLINE alt_32 static alt_epcq_validate_read_write_arguments(alt_epcq_controller_dev *flash_info,alt_u32 offset, alt_u32 length);
|
||||
alt_32 static alt_epcq_poll_for_write_in_progress(alt_epcq_controller_dev* epcq_flash_info);
|
||||
ALT_INLINE unsigned char static bitswap8(unsigned char v);
|
||||
|
||||
/*
|
||||
* Public API
|
||||
*
|
||||
* Refer to “Using Flash Devices” in the
|
||||
* Developing Programs Using the Hardware Abstraction Layer chapter
|
||||
* of the Nios II Software Developer’s Handbook.
|
||||
*/
|
||||
|
||||
|
||||
/**
|
||||
* alt_epcq_controller_lock
|
||||
*
|
||||
* Locks the range of the memory sectors, which
|
||||
* protected from write and erase.
|
||||
*
|
||||
* Arguments:
|
||||
* - *flash_info: Pointer to general flash device structure.
|
||||
* - sectors_to_lock: Block protection bits in EPCQ ==> Bit4 | Bit3 | Bit2 | Bit1 | Bit0
|
||||
* TB | BP3 | BP2 | BP1 | BP0
|
||||
* For details of setting sectors protection, please refer to EPCQ datasheet.
|
||||
*
|
||||
* Returns:
|
||||
* 0 -> success
|
||||
* -EINVAL -> Invalid arguments
|
||||
* -ETIME -> Time out and skipping the looping after 0.7 sec.
|
||||
* -ENOLCK -> Sectors lock failed.
|
||||
**/
|
||||
int alt_epcq_controller_lock(alt_flash_dev *flash_info, alt_u32 sectors_to_lock)
|
||||
{
|
||||
alt_u32 mem_op_value = 0; /* value to write to EPCQ_MEM_OP register */
|
||||
alt_epcq_controller_dev* epcq_flash_info = NULL;
|
||||
alt_u32 result = 0;
|
||||
alt_32 status = 0;
|
||||
|
||||
/* return -EINVAL if flash_info is NULL */
|
||||
if(NULL == flash_info || 0 > sectors_to_lock)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
epcq_flash_info = (alt_epcq_controller_dev*)flash_info;
|
||||
|
||||
/* sector value should occupy bits 17:8 */
|
||||
mem_op_value = sectors_to_lock << 8;
|
||||
|
||||
/* sector protect commands 0b11 occupies lower 2 bits */
|
||||
mem_op_value |= ALTERA_EPCQ_CONTROLLER_MEM_OP_SECTOR_PROTECT_CMD;
|
||||
|
||||
/* write sector protect command to EPCQ_MEM_OP register to protect sectors */
|
||||
IOWR_ALTERA_EPCQ_CONTROLLER_MEM_OP(epcq_flash_info->csr_base, mem_op_value);
|
||||
|
||||
/* poll write in progress to make sure no operation is in progress */
|
||||
status = alt_epcq_poll_for_write_in_progress(epcq_flash_info);
|
||||
if(status != 0)
|
||||
{
|
||||
return status;
|
||||
}
|
||||
|
||||
status = IORD_ALTERA_EPCQ_CONTROLLER_STATUS(epcq_flash_info->csr_base);
|
||||
result |= (status >> 2) & 0x07; /* extract out BP3 - BP0 */
|
||||
result |= (status >> 3) & 0x08; /* extract out BP4 */
|
||||
result |= (status >> 1) & 0x10; /* extract out TOP/BOTTOM bit */
|
||||
|
||||
if(result != sectors_to_lock)
|
||||
{
|
||||
return -ENOLCK;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* alt_epcq_controller_get_info
|
||||
*
|
||||
* Pass the table of erase blocks to the user. This flash will return a single
|
||||
* flash_region that gives the number and size of sectors for the device used.
|
||||
*
|
||||
* Arguments:
|
||||
* - *fd: Pointer to general flash device structure.
|
||||
* - **info: Pointer to flash region
|
||||
* - *number_of_regions: Pointer to number of regions
|
||||
*
|
||||
* For details of setting sectors protection, please refer to EPCQ datasheet.
|
||||
*
|
||||
* Returns:
|
||||
* 0 -> success
|
||||
* -EINVAL -> Invalid arguments
|
||||
* -EIO -> Could be hardware problem.
|
||||
**/
|
||||
int alt_epcq_controller_get_info
|
||||
(
|
||||
alt_flash_fd *fd, /** flash device descriptor */
|
||||
flash_region **info, /** pointer to flash_region will be stored here */
|
||||
int *number_of_regions /** number of regions will be stored here */
|
||||
)
|
||||
{
|
||||
alt_flash_dev* flash = NULL;
|
||||
|
||||
/* return -EINVAL if fd,info and number_of_regions are NULL */
|
||||
if(NULL == fd || NULL == info || NULL == number_of_regions)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
flash = (alt_flash_dev*)fd;
|
||||
|
||||
*number_of_regions = flash->number_of_regions;
|
||||
|
||||
if (!flash->number_of_regions)
|
||||
{
|
||||
return -EIO;
|
||||
}
|
||||
else
|
||||
{
|
||||
*info = &flash->region_info[0];
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* alt_epcq_controller_erase_block
|
||||
*
|
||||
* This function erases a single flash sector.
|
||||
*
|
||||
* Arguments:
|
||||
* - *flash_info: Pointer to EPCQ flash device structure.
|
||||
* - block_offset: byte-addressed offset, from start of flash, of the sector to be erased
|
||||
*
|
||||
* Returns:
|
||||
* 0 -> success
|
||||
* -EINVAL -> Invalid arguments
|
||||
* -EIO -> write failed, sector might be protected
|
||||
**/
|
||||
int alt_epcq_controller_erase_block(alt_flash_dev *flash_info, int block_offset)
|
||||
{
|
||||
alt_32 ret_code = 0;
|
||||
alt_u32 mem_op_value = 0; /* value to write to EPCQ_MEM_OP register */
|
||||
alt_epcq_controller_dev* epcq_flash_info = NULL;
|
||||
alt_u32 sector_number = 0;
|
||||
|
||||
/* return -EINVAL if flash_info is NULL */
|
||||
if(NULL == flash_info)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
epcq_flash_info = (alt_epcq_controller_dev*)flash_info;
|
||||
|
||||
/*
|
||||
* Sanity checks that block_offset is within the flash memory span and that the
|
||||
* block offset is sector aligned.
|
||||
*
|
||||
*/
|
||||
if((block_offset < 0)
|
||||
|| (block_offset >= epcq_flash_info->size_in_bytes)
|
||||
|| (block_offset & (epcq_flash_info->sector_size - 1)) != 0)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* calculate current sector/block number */
|
||||
sector_number = (block_offset/(epcq_flash_info->sector_size));
|
||||
|
||||
/* sector value should occupy bits 23:8 */
|
||||
mem_op_value = (sector_number << 8) & ALTERA_EPCQ_CONTROLLER_MEM_OP_SECTOR_VALUE_MASK;
|
||||
|
||||
/* sector erase commands 0b10 occupies lower 2 bits */
|
||||
mem_op_value |= ALTERA_EPCQ_CONTROLLER_MEM_OP_SECTOR_ERASE_CMD;
|
||||
|
||||
/* write sector erase command to EPCQ_MEM_OP register to erase sector "sector_number" */
|
||||
IOWR_ALTERA_EPCQ_CONTROLLER_MEM_OP(epcq_flash_info->csr_base, mem_op_value);
|
||||
|
||||
/* check whether erase triggered a illegal erase interrupt */
|
||||
if((IORD_ALTERA_EPCQ_CONTROLLER_ISR(epcq_flash_info->csr_base) &
|
||||
ALTERA_EPCQ_CONTROLLER_ISR_ILLEGAL_ERASE_MASK) ==
|
||||
ALTERA_EPCQ_CONTROLLER_ISR_ILLEGAL_ERASE_ACTIVE)
|
||||
{
|
||||
/* clear register */
|
||||
/* EPCQ_ISR access is write one to clear (W1C) */
|
||||
IOWR_ALTERA_EPCQ_CONTROLLER_ISR(epcq_flash_info->csr_base,
|
||||
ALTERA_EPCQ_CONTROLLER_ISR_ILLEGAL_ERASE_MASK );
|
||||
return -EIO; /* erase failed, sector might be protected */
|
||||
}
|
||||
|
||||
return ret_code;
|
||||
}
|
||||
|
||||
/**
|
||||
* alt_epcq_controller_write_block
|
||||
*
|
||||
* This function writes one block/sector of data to flash. The length of the write can NOT
|
||||
* spill into the adjacent sector.
|
||||
*
|
||||
* It assumes that someone has already erased the appropriate sector(s).
|
||||
*
|
||||
* Arguments:
|
||||
* - *flash_info: Pointer to EPCQ flash device structure.
|
||||
* - block_offset: byte-addressed offset, from the start of flash, of the sector to written to
|
||||
* - data-offset: Byte offset (unaligned access) of write into flash memory.
|
||||
* For best performance, word(32 bits - aligned access) offset of write is recommended.
|
||||
* - *src_addr: source buffer
|
||||
* - length: size of writing
|
||||
*
|
||||
* Returns:
|
||||
* 0 -> success
|
||||
* -EINVAL -> Invalid arguments
|
||||
* -EIO -> write failed, sector might be protected
|
||||
**/
|
||||
int alt_epcq_controller_write_block
|
||||
(
|
||||
alt_flash_dev *flash_info, /** flash device info */
|
||||
int block_offset, /** sector/block offset in byte addressing */
|
||||
int data_offset, /** offset of write from base address */
|
||||
const void *data, /** data to be written */
|
||||
int length /** bytes of data to be written, >0 */
|
||||
)
|
||||
{
|
||||
alt_u32 buffer_offset = 0; /** offset into data buffer to get write data */
|
||||
alt_u32 remaining_length = length; /** length left to write */
|
||||
alt_u32 write_offset = data_offset; /** offset into flash to write too */
|
||||
|
||||
alt_epcq_controller_dev *epcq_flash_info = (alt_epcq_controller_dev*)flash_info;
|
||||
|
||||
/*
|
||||
* Sanity checks that data offset is not larger then a sector, that block offset is
|
||||
* sector aligned and within the valid flash memory range and a write doesn't spill into
|
||||
* the adjacent flash sector.
|
||||
*/
|
||||
if(block_offset < 0
|
||||
|| data_offset < 0
|
||||
|| NULL == flash_info
|
||||
|| NULL == data
|
||||
|| data_offset >= epcq_flash_info->size_in_bytes
|
||||
|| block_offset >= epcq_flash_info->size_in_bytes
|
||||
|| length > (epcq_flash_info->sector_size - (data_offset - block_offset))
|
||||
|| length < 0
|
||||
|| (block_offset & (epcq_flash_info->sector_size - 1)) != 0)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Do writes one 32-bit word at a time.
|
||||
* We need to make sure that we pad the first few bytes so they're word aligned if they are
|
||||
* not already.
|
||||
*/
|
||||
while (remaining_length > 0)
|
||||
{
|
||||
alt_u32 word_to_write = 0xFFFFFFFF; /** initialize word to write to blank word */
|
||||
alt_u32 padding = 0; /** bytes to pad the next word that is written */
|
||||
alt_u32 bytes_to_copy = sizeof(alt_u32); /** number of bytes from source to copy */
|
||||
|
||||
/*
|
||||
* we need to make sure the write is word aligned
|
||||
* this should only be true at most 1 time
|
||||
*/
|
||||
if (0 != (write_offset & (sizeof(alt_u32) - 1)))
|
||||
{
|
||||
/*
|
||||
* data is not word aligned
|
||||
* calculate padding bytes need to add before start of a data offset
|
||||
*/
|
||||
padding = write_offset & (sizeof(alt_u32) - 1);
|
||||
|
||||
/* update variables to account for padding being added */
|
||||
bytes_to_copy -= padding;
|
||||
|
||||
if(bytes_to_copy > remaining_length)
|
||||
{
|
||||
bytes_to_copy = remaining_length;
|
||||
}
|
||||
|
||||
write_offset = write_offset - padding;
|
||||
if(0 != (write_offset & (sizeof(alt_u32) - 1)))
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if(bytes_to_copy > remaining_length)
|
||||
{
|
||||
bytes_to_copy = remaining_length;
|
||||
}
|
||||
}
|
||||
|
||||
/* prepare the word to be written */
|
||||
memcpy((((void*)&word_to_write)) + padding, ((void*)data) + buffer_offset, bytes_to_copy);
|
||||
|
||||
// Bit-reverse bytes for flash
|
||||
for (int i=0; i<bytes_to_copy; i++)
|
||||
*((unsigned char*)&word_to_write+i) = bitswap8(*((unsigned char*)&word_to_write+i));
|
||||
|
||||
/* update offset and length variables */
|
||||
buffer_offset += bytes_to_copy;
|
||||
remaining_length -= bytes_to_copy;
|
||||
|
||||
/* write to flash 32 bits at a time */
|
||||
IOWR_32DIRECT(epcq_flash_info->data_base, write_offset, word_to_write);
|
||||
|
||||
/* check whether write triggered a illegal write interrupt */
|
||||
if((IORD_ALTERA_EPCQ_CONTROLLER_ISR(epcq_flash_info->csr_base) &
|
||||
ALTERA_EPCQ_CONTROLLER_ISR_ILLEGAL_WRITE_MASK) ==
|
||||
ALTERA_EPCQ_CONTROLLER_ISR_ILLEGAL_WRITE_ACTIVE)
|
||||
{
|
||||
/* clear register */
|
||||
IOWR_ALTERA_EPCQ_CONTROLLER_ISR(epcq_flash_info->csr_base,
|
||||
ALTERA_EPCQ_CONTROLLER_ISR_ILLEGAL_WRITE_MASK );
|
||||
return -EIO; /** write failed, sector might be protected */
|
||||
}
|
||||
|
||||
/* update current offset */
|
||||
write_offset = write_offset + sizeof(alt_u32);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* alt_epcq_controller_write
|
||||
*
|
||||
* Program the data into the flash at the selected address.
|
||||
*
|
||||
* The different between this function and alt_epcq_controller_write_block function
|
||||
* is that this function (alt_epcq_controller_write) will automatically erase a block as needed
|
||||
* Arguments:
|
||||
* - *flash_info: Pointer to EPCQ flash device structure.
|
||||
* - offset: Byte offset (unaligned access) of write to flash memory. For best performance,
|
||||
* word(32 bits - aligned access) offset of write is recommended.
|
||||
* - *src_addr: source buffer
|
||||
* - length: size of writing
|
||||
*
|
||||
* Returns:
|
||||
* 0 -> success
|
||||
* -EINVAL -> Invalid arguments
|
||||
* -EIO -> write failed, sector might be protected
|
||||
*
|
||||
**/
|
||||
int alt_epcq_controller_write(
|
||||
alt_flash_dev *flash_info, /** device info */
|
||||
int offset, /** offset of write from base address */
|
||||
const void *src_addr, /** source buffer */
|
||||
int length /** size of writing */
|
||||
)
|
||||
{
|
||||
alt_32 ret_code = 0;
|
||||
|
||||
alt_epcq_controller_dev *epcq_flash_info = NULL;
|
||||
|
||||
alt_u32 write_offset = offset; /** address of next byte to write */
|
||||
alt_u32 remaining_length = length; /** length of write data left to be written */
|
||||
alt_u32 buffer_offset = 0; /** offset into source buffer to get write data */
|
||||
alt_u32 i = 0;
|
||||
|
||||
/* return -EINVAL if flash_info and src_addr are NULL */
|
||||
if(NULL == flash_info || NULL == src_addr)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
epcq_flash_info = (alt_epcq_controller_dev*)flash_info;
|
||||
|
||||
/* make sure the write parameters are within the bounds of the flash */
|
||||
ret_code = alt_epcq_validate_read_write_arguments(epcq_flash_info, offset, length);
|
||||
|
||||
if(0 != ret_code)
|
||||
{
|
||||
return ret_code;
|
||||
}
|
||||
|
||||
/*
|
||||
* This loop erases and writes data one sector at a time. We check for write completion
|
||||
* before starting the next sector.
|
||||
*/
|
||||
for(i = offset/epcq_flash_info->sector_size ; i < epcq_flash_info->number_of_sectors; i++)
|
||||
{
|
||||
alt_u32 block_offset = 0; /** block offset in byte addressing */
|
||||
alt_u32 offset_within_current_sector = 0; /** offset into current sector to write */
|
||||
alt_u32 length_to_write = 0; /** length to write to current sector */
|
||||
|
||||
if(0 >= remaining_length)
|
||||
{
|
||||
break; /* out of data to write */
|
||||
}
|
||||
|
||||
/* calculate current sector/block offset in byte addressing */
|
||||
block_offset = write_offset & ~(epcq_flash_info->sector_size - 1);
|
||||
|
||||
/* calculate offset into sector/block if there is one */
|
||||
if(block_offset != write_offset)
|
||||
{
|
||||
offset_within_current_sector = write_offset - block_offset;
|
||||
}
|
||||
|
||||
/* erase sector */
|
||||
ret_code = alt_epcq_controller_erase_block(flash_info, block_offset);
|
||||
|
||||
if(0 != ret_code)
|
||||
{
|
||||
return ret_code;
|
||||
}
|
||||
|
||||
/* calculate the byte size of data to be written in a sector */
|
||||
length_to_write = MIN(epcq_flash_info->sector_size - offset_within_current_sector,
|
||||
remaining_length);
|
||||
|
||||
/* write data to erased block */
|
||||
ret_code = alt_epcq_controller_write_block(flash_info, block_offset, write_offset,
|
||||
src_addr + buffer_offset, length_to_write);
|
||||
|
||||
|
||||
if(0 != ret_code)
|
||||
{
|
||||
return ret_code;
|
||||
}
|
||||
|
||||
/* update remaining length and buffer_offset pointer */
|
||||
remaining_length -= length_to_write;
|
||||
buffer_offset += length_to_write;
|
||||
write_offset += length_to_write;
|
||||
}
|
||||
|
||||
return ret_code;
|
||||
}
|
||||
|
||||
/**
|
||||
* alt_epcq_controller_read
|
||||
*
|
||||
* There's no real need to use this function as opposed to using memcpy directly. It does
|
||||
* do some sanity checks on the bounds of the read.
|
||||
*
|
||||
* Arguments:
|
||||
* - *flash_info: Pointer to general flash device structure.
|
||||
* - offset: offset read from flash memory.
|
||||
* - *dest_addr: destination buffer
|
||||
* - length: size of reading
|
||||
*
|
||||
* Returns:
|
||||
* 0 -> success
|
||||
* -EINVAL -> Invalid arguments
|
||||
**/
|
||||
int alt_epcq_controller_read
|
||||
(
|
||||
alt_flash_dev *flash_info, /** device info */
|
||||
int offset, /** offset of read from base address */
|
||||
void *dest_addr, /** destination buffer */
|
||||
int length /** size of read */
|
||||
)
|
||||
{
|
||||
alt_32 ret_code = 0;
|
||||
alt_epcq_controller_dev *epcq_flash_info = NULL;
|
||||
|
||||
/* return -EINVAL if flash_info and dest_addr are NULL */
|
||||
if(NULL == flash_info || NULL == dest_addr)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
epcq_flash_info = (alt_epcq_controller_dev*)flash_info;
|
||||
|
||||
/* validate arguments */
|
||||
ret_code = alt_epcq_validate_read_write_arguments(epcq_flash_info, offset, length);
|
||||
|
||||
/* copy data from flash to destination address */
|
||||
if(0 == ret_code)
|
||||
{
|
||||
memcpy(dest_addr, (alt_u8*)epcq_flash_info->data_base + offset, length);
|
||||
|
||||
// Bit-reverse bytes read from flash
|
||||
for (int i=0; i<length; i++)
|
||||
*((unsigned char*)dest_addr+i) = bitswap8(*((unsigned char*)dest_addr+i));
|
||||
}
|
||||
|
||||
return ret_code;
|
||||
}
|
||||
|
||||
/**
|
||||
* altera_epcq_controller_init
|
||||
*
|
||||
* alt_sys_init.c will call this function automatically through macro
|
||||
*
|
||||
* Information in system.h is checked against expected values that are determined by the silicon_id.
|
||||
* If the information doesn't match then this system is configured incorrectly. Most likely the wrong
|
||||
* type of EPCS or EPCQ device was selected when instantiating the soft IP.
|
||||
*
|
||||
* Arguments:
|
||||
* - *flash: Pointer to EPCQ flash device structure.
|
||||
*
|
||||
* Returns:
|
||||
* 0 -> success
|
||||
* -EINVAL -> Invalid arguments.
|
||||
* -ENODEV -> System is configured incorrectly.
|
||||
**/
|
||||
alt_32 altera_epcq_controller_init(alt_epcq_controller_dev *flash)
|
||||
{
|
||||
alt_u32 silicon_id = 0;
|
||||
alt_u32 size_in_bytes = 0;
|
||||
alt_u32 number_of_sectors = 0;
|
||||
|
||||
/* return -EINVAL if flash is NULL */
|
||||
if(NULL == flash)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* return -ENODEV if CSR slave is not attached */
|
||||
if(NULL == (void *)flash->csr_base)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* If flash is an EPCQ device, we read the EPCQ_RD_RDID register for the ID
|
||||
* If flash is an EPCS device, we read the EPCQ_RD_SID register for the ID
|
||||
*
|
||||
* Whether or not the flash is a EPCQ or EPCS is indicated in the system.h. The system.h gets
|
||||
* this value from the hw.tcl of the IP. If this value is set incorrectly, then things will go
|
||||
* badly.
|
||||
*
|
||||
* In both cases, we can determine the number of sectors, which we can use
|
||||
* to calculate a size. We compare that size to the system.h value to make sure
|
||||
* the EPCQ soft IP was configured correctly.
|
||||
*/
|
||||
if(0 == flash->is_epcs)
|
||||
{
|
||||
/* If we're an EPCQ, we read EPCQ_RD_RDID for the silicon ID */
|
||||
silicon_id = IORD_ALTERA_EPCQ_CONTROLLER_RDID(flash->csr_base);
|
||||
silicon_id &= ALTERA_EPCQ_CONTROLLER_RDID_MASK;
|
||||
|
||||
/* Determine which EPCQ device so we can figure out the number of sectors */
|
||||
/* EPCQ share the same ID for the same capacity*/
|
||||
switch(silicon_id)
|
||||
{
|
||||
case ALTERA_EPCQ_CONTROLLER_RDID_EPCQ16:
|
||||
{
|
||||
number_of_sectors = 32;
|
||||
break;
|
||||
}
|
||||
case ALTERA_EPCQ_CONTROLLER_RDID_EPCQ32:
|
||||
{
|
||||
number_of_sectors = 64;
|
||||
break;
|
||||
}
|
||||
case ALTERA_EPCQ_CONTROLLER_RDID_EPCQ64:
|
||||
{
|
||||
number_of_sectors = 128;
|
||||
break;
|
||||
}
|
||||
case ALTERA_EPCQ_CONTROLLER_RDID_EPCQ128:
|
||||
{
|
||||
number_of_sectors = 256;
|
||||
break;
|
||||
}
|
||||
case ALTERA_EPCQ_CONTROLLER_RDID_EPCQ256:
|
||||
{
|
||||
number_of_sectors = 512;
|
||||
break;
|
||||
}
|
||||
case ALTERA_EPCQ_CONTROLLER_RDID_EPCQ512:
|
||||
{
|
||||
number_of_sectors = 1024;
|
||||
break;
|
||||
}
|
||||
case ALTERA_EPCQ_CONTROLLER_RDID_EPCQ1024:
|
||||
{
|
||||
number_of_sectors = 2048;
|
||||
break;
|
||||
}
|
||||
default:
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
}
|
||||
}
|
||||
else {
|
||||
/* If we're an EPCS, we read EPCQ_RD_SID for the silicon ID */
|
||||
silicon_id = IORD_ALTERA_EPCQ_CONTROLLER_SID(flash->csr_base);
|
||||
silicon_id &= ALTERA_EPCQ_CONTROLLER_SID_MASK;
|
||||
|
||||
/* Determine which EPCS device so we can figure out various properties */
|
||||
switch(silicon_id)
|
||||
{
|
||||
case ALTERA_EPCQ_CONTROLLER_SID_EPCS16:
|
||||
{
|
||||
number_of_sectors = 32;
|
||||
break;
|
||||
}
|
||||
case ALTERA_EPCQ_CONTROLLER_SID_EPCS64:
|
||||
{
|
||||
number_of_sectors = 128;
|
||||
break;
|
||||
}
|
||||
case ALTERA_EPCQ_CONTROLLER_SID_EPCS128:
|
||||
{
|
||||
number_of_sectors = 256;
|
||||
break;
|
||||
}
|
||||
default:
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Calculate size of flash based on number of sectors */
|
||||
size_in_bytes = number_of_sectors * flash->sector_size;
|
||||
|
||||
/*
|
||||
* Make sure calculated size is the same size given in system.h
|
||||
* Also check number of sectors is the same number given in system.h
|
||||
* Otherwise the EPCQ IP was not configured correctly
|
||||
*/
|
||||
if( size_in_bytes != flash->size_in_bytes ||
|
||||
number_of_sectors != flash->number_of_sectors)
|
||||
{
|
||||
flash->dev.number_of_regions = 0;
|
||||
return -ENODEV;
|
||||
}
|
||||
else
|
||||
{
|
||||
flash->silicon_id = silicon_id;
|
||||
flash->number_of_sectors = number_of_sectors;
|
||||
|
||||
/*
|
||||
* populate fields of region_info required to conform to HAL API
|
||||
* create 1 region that composed of "number_of_sectors" blocks
|
||||
*/
|
||||
flash->dev.number_of_regions = 1;
|
||||
flash->dev.region_info[0].offset = 0;
|
||||
flash->dev.region_info[0].region_size = size_in_bytes;
|
||||
flash->dev.region_info[0].number_of_blocks = number_of_sectors;
|
||||
flash->dev.region_info[0].block_size = flash->sector_size;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Register this device as a valid flash device type
|
||||
*
|
||||
* Only register the device if it's configured correctly.
|
||||
*/
|
||||
alt_flash_device_register(&(flash->dev));
|
||||
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Private API
|
||||
*
|
||||
* Helper functions used by Public API functions.
|
||||
*
|
||||
* Arguments:
|
||||
* - *flash_info: Pointer to EPCQ flash device structure.
|
||||
* - offset: Offset of read/write from base address.
|
||||
* - length: Length of read/write in bytes.
|
||||
*
|
||||
* Returns:
|
||||
* 0 -> success
|
||||
* -EINVAL -> Invalid arguments
|
||||
*/
|
||||
/**
|
||||
* Used to check that arguments to a read or write are valid
|
||||
*/
|
||||
ALT_INLINE alt_32 static alt_epcq_validate_read_write_arguments
|
||||
(
|
||||
alt_epcq_controller_dev *flash_info, /** device info */
|
||||
alt_u32 offset, /** offset of read/write */
|
||||
alt_u32 length /** length of read/write */
|
||||
)
|
||||
{
|
||||
alt_epcq_controller_dev *epcq_flash_info = NULL;
|
||||
alt_u32 start_address = 0;
|
||||
alt_32 end_address = 0;
|
||||
|
||||
/* return -EINVAL if flash_info is NULL */
|
||||
if(NULL == flash_info)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
epcq_flash_info = (alt_epcq_controller_dev*)flash_info;
|
||||
|
||||
start_address = epcq_flash_info->data_base + offset; /** first address of read or write */
|
||||
end_address = start_address + length; /** last address of read or write (not inclusive) */
|
||||
|
||||
/* make sure start and end address is less then the end address of the flash */
|
||||
if(
|
||||
start_address >= epcq_flash_info->data_end ||
|
||||
end_address >= epcq_flash_info->data_end ||
|
||||
offset < 0 ||
|
||||
length < 0
|
||||
)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Private function that polls write in progress bit EPCQ_RD_STATUS.
|
||||
*
|
||||
* Write in progress will be set if any of the following operations are in progress:
|
||||
* -WRITE STATUS REGISTER
|
||||
* -WRITE NONVOLATILE CONFIGURATION REGISTER
|
||||
* -PROGRAM
|
||||
* -ERASE
|
||||
*
|
||||
* Assumes EPCQ was configured correctly.
|
||||
*
|
||||
* If ALTERA_EPCQ_CONTROLLER_1US_TIMEOUT_VALUE is set, the function will time out after
|
||||
* a period of time determined by that value.
|
||||
*
|
||||
* Arguments:
|
||||
* - *epcq_flash_info: Pointer to EPCQ flash device structure.
|
||||
*
|
||||
* Returns:
|
||||
* 0 -> success
|
||||
* -EINVAL -> Invalid arguments
|
||||
* -ETIME -> Time out and skipping the looping after 0.7 sec.
|
||||
*/
|
||||
alt_32 static alt_epcq_poll_for_write_in_progress(alt_epcq_controller_dev* epcq_flash_info)
|
||||
{
|
||||
/* we'll want to implement timeout if a timeout value is specified */
|
||||
#if ALTERA_EPCQ_CONTROLLER_1US_TIMEOUT_VALUE > 0
|
||||
alt_u32 timeout = ALTERA_EPCQ_CONTROLLER_1US_TIMEOUT_VALUE;
|
||||
alt_u16 counter = 0;
|
||||
#endif
|
||||
|
||||
/* return -EINVAL if epcq_flash_info is NULL */
|
||||
if(NULL == epcq_flash_info)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* while Write in Progress bit is set, we wait */
|
||||
while((IORD_ALTERA_EPCQ_CONTROLLER_STATUS(epcq_flash_info->csr_base) &
|
||||
ALTERA_EPCQ_CONTROLLER_STATUS_WIP_MASK) ==
|
||||
ALTERA_EPCQ_CONTROLLER_STATUS_WIP_BUSY)
|
||||
{
|
||||
alt_busy_sleep(1); /* delay 1us */
|
||||
#if ALTERA_EPCQ_CONTROLLER_1US_TIMEOUT_VALUE > 0
|
||||
if(timeout <= counter )
|
||||
{
|
||||
return -ETIME;
|
||||
}
|
||||
|
||||
counter++;
|
||||
#endif
|
||||
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
ALT_INLINE unsigned char static bitswap8(unsigned char v)
|
||||
{
|
||||
return ((v * 0x0802LU & 0x22110LU) |
|
||||
(v * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16;
|
||||
}
|
||||
|
||||
|
@ -0,0 +1 @@
|
||||
../../../../ip/altera_epcq_controller_mod/HAL/src/altera_epcq_controller_mod.c
|
@ -1,212 +0,0 @@
|
||||
|
||||
#include "alt_types.h"
|
||||
#include "i2c_opencores_regs.h"
|
||||
#include "i2c_opencores.h"
|
||||
|
||||
// #define I2C_DEBUG
|
||||
//int I2C_init(alt_u32 base,alt_u32 clk, alt_u32 speed)
|
||||
//int I2C_start(alt_u32 base, alt_u32 add, alt_u32 write);
|
||||
//alt_u32 I2C_read(alt_u32 base);
|
||||
//int I2C_write(alt_u32 base, alt_u8 data);
|
||||
//int I2C_stop(alt_u32 base);
|
||||
|
||||
/* these functions are polled only. */
|
||||
/* all functions wait until the I2C is done before exiting */
|
||||
|
||||
|
||||
/****************************************************************
|
||||
int I2C_init
|
||||
This function inititlizes the prescalor for the scl
|
||||
and then enables the core. This must be run before
|
||||
any other i2c code is executed
|
||||
inputs
|
||||
base = the base address of the component
|
||||
clk = freuqency of the clock driving this component ( in Hz)
|
||||
speed = SCL speed ie 100K, 400K ... (in Hz)
|
||||
15-OCT-07 initial release
|
||||
*****************************************************************/
|
||||
void I2C_init(alt_u32 base,alt_u32 clk,alt_u32 speed)
|
||||
{
|
||||
alt_u32 prescale = (clk/( 5 * speed))-1;
|
||||
#ifdef I2C_DEBUG
|
||||
printf(" Initializing I2C at 0x%x, \n\twith clock speed 0x%x \n\tand SCL speed 0x%x \n\tand prescale 0x%x\n",base,clk,speed,prescale);
|
||||
#endif
|
||||
IOWR_I2C_OPENCORES_CTR(base, 0x00); /* turn off the core*/
|
||||
|
||||
IOWR_I2C_OPENCORES_CR(base, I2C_OPENCORES_CR_IACK_MSK); /* clearn any pening IRQ*/
|
||||
|
||||
IOWR_I2C_OPENCORES_PRERLO(base, (0xff & prescale)); /* load low presacle bit*/
|
||||
|
||||
IOWR_I2C_OPENCORES_PRERHI(base, (0xff & (prescale>>8))); /* load upper prescale bit */
|
||||
|
||||
IOWR_I2C_OPENCORES_CTR(base, I2C_OPENCORES_CTR_EN_MSK); /* turn on the core*/
|
||||
|
||||
}
|
||||
|
||||
/****************************************************************
|
||||
int I2C_start
|
||||
Sets the start bit and then sends the first byte which
|
||||
is the address of the device + the write bit.
|
||||
inputs
|
||||
base = the base address of the component
|
||||
add = address of I2C device
|
||||
read = 1== read 0== write
|
||||
return value
|
||||
0 if address is acknowledged
|
||||
1 if address was not acknowledged
|
||||
15-OCT-07 initial release
|
||||
*****************************************************************/
|
||||
int I2C_start(alt_u32 base, alt_u32 add, alt_u32 read)
|
||||
{
|
||||
#ifdef I2C_DEBUG
|
||||
printf(" Start I2C at 0x%x, \n\twith address 0x%x \n\tand read 0x%x \n\tand prescale 0x%x\n",base,add,read);
|
||||
#endif
|
||||
|
||||
/* transmit the address shifted by one and the read/write bit*/
|
||||
IOWR_I2C_OPENCORES_TXR(base, ((add<<1) + (0x1 & read)));
|
||||
|
||||
/* set start and write bits which will start the transaction*/
|
||||
IOWR_I2C_OPENCORES_CR(base, I2C_OPENCORES_CR_STA_MSK | I2C_OPENCORES_CR_WR_MSK );
|
||||
|
||||
/* wait for the trnasaction to be over.*/
|
||||
while (IORD_I2C_OPENCORES_SR(base) & I2C_OPENCORES_SR_TIP_MSK) {}
|
||||
|
||||
/* now check to see if the address was acknowledged */
|
||||
if(IORD_I2C_OPENCORES_SR(base) & I2C_OPENCORES_SR_RXNACK_MSK)
|
||||
{
|
||||
#ifdef I2C_DEBUG
|
||||
printf("\tNOACK\n");
|
||||
#endif
|
||||
return (I2C_NOACK);
|
||||
}
|
||||
else
|
||||
{
|
||||
#ifdef I2C_DEBUG
|
||||
printf("\tACK\n");
|
||||
#endif
|
||||
return (I2C_ACK);
|
||||
}
|
||||
}
|
||||
|
||||
/****************************************************************
|
||||
int I2C_read
|
||||
assumes that any addressing and start
|
||||
has already been done.
|
||||
reads one byte of data from the slave. on the last read
|
||||
we don't acknowldge and set the stop bit.
|
||||
inputs
|
||||
base = the base address of the component
|
||||
last = on the last read there must not be a ack
|
||||
|
||||
return value
|
||||
byte read back.
|
||||
15-OCT-07 initial release
|
||||
*****************************************************************/
|
||||
alt_u32 I2C_read(alt_u32 base,alt_u32 last)
|
||||
{
|
||||
#ifdef I2C_DEBUG
|
||||
printf(" Read I2C at 0x%x, \n\twith last0x%x\n",base,last);
|
||||
#endif
|
||||
if( last)
|
||||
{
|
||||
/* start a read and no ack and stop bit*/
|
||||
IOWR_I2C_OPENCORES_CR(base, I2C_OPENCORES_CR_RD_MSK |
|
||||
I2C_OPENCORES_CR_NACK_MSK | I2C_OPENCORES_CR_STO_MSK);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* start read*/
|
||||
IOWR_I2C_OPENCORES_CR(base, I2C_OPENCORES_CR_RD_MSK );
|
||||
}
|
||||
/* wait for the trnasaction to be over.*/
|
||||
while (IORD_I2C_OPENCORES_SR(base) & I2C_OPENCORES_SR_TIP_MSK) {}
|
||||
|
||||
/* now read the data */
|
||||
return (IORD_I2C_OPENCORES_RXR(base));
|
||||
|
||||
}
|
||||
|
||||
/****************************************************************
|
||||
int I2C_write
|
||||
assumes that any addressing and start
|
||||
has already been done.
|
||||
writes one byte of data from the slave.
|
||||
If last is set the stop bit set.
|
||||
inputs
|
||||
base = the base address of the component
|
||||
data = byte to write
|
||||
last = on the last read there must not be a ack
|
||||
|
||||
return value
|
||||
0 if address is acknowledged
|
||||
1 if address was not acknowledged
|
||||
15-OCT-07 initial release
|
||||
*****************************************************************/
|
||||
alt_u32 I2C_write(alt_u32 base,alt_u8 data, alt_u32 last)
|
||||
{
|
||||
#ifdef I2C_DEBUG
|
||||
printf(" Read I2C at 0x%x, \n\twith data 0x%x,\n\twith last0x%x\n",base,data,last);
|
||||
#endif
|
||||
/* transmit the data*/
|
||||
IOWR_I2C_OPENCORES_TXR(base, data);
|
||||
|
||||
if( last)
|
||||
{
|
||||
/* start a write with ack and stop bit*/
|
||||
IOWR_I2C_OPENCORES_CR(base, I2C_OPENCORES_CR_WR_MSK |
|
||||
I2C_OPENCORES_CR_STO_MSK);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* start write with ack */
|
||||
IOWR_I2C_OPENCORES_CR(base, I2C_OPENCORES_CR_WR_MSK );
|
||||
}
|
||||
/* wait for the trnasaction to be over.*/
|
||||
while (IORD_I2C_OPENCORES_SR(base) & I2C_OPENCORES_SR_TIP_MSK) {}
|
||||
|
||||
/* now check to see if the address was acknowledged */
|
||||
if(IORD_I2C_OPENCORES_SR(base) & I2C_OPENCORES_SR_RXNACK_MSK)
|
||||
{
|
||||
#ifdef I2C_DEBUG
|
||||
printf("\tNOACK\n");
|
||||
#endif
|
||||
return (I2C_NOACK);
|
||||
}
|
||||
else
|
||||
{
|
||||
#ifdef I2C_DEBUG
|
||||
printf("\tACK\n");
|
||||
#endif
|
||||
return (I2C_ACK);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void SPI_read(alt_u32 base, alt_u8 *rdata, int len)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i=0; i<len; i++) {
|
||||
/* start read*/
|
||||
IOWR_I2C_OPENCORES_CR(base, I2C_OPENCORES_CR_RD_MSK|I2C_OPENCORES_CR_NACK_MSK|I2C_OPENCORES_CR_SPIM_MSK );
|
||||
/* wait for the trnasaction to be over.*/
|
||||
while( IORD_I2C_OPENCORES_SR(base) & I2C_OPENCORES_SR_TIP_MSK);
|
||||
/* now read the data */
|
||||
if (rdata)
|
||||
rdata[i] = IORD_I2C_OPENCORES_RXR(base);
|
||||
}
|
||||
}
|
||||
|
||||
void SPI_write(alt_u32 base, alt_u8 *wdata, int len)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i=0; i<len; i++) {
|
||||
/* transmit the data*/
|
||||
IOWR_I2C_OPENCORES_TXR(base, wdata[i]);
|
||||
/* start write */
|
||||
IOWR_I2C_OPENCORES_CR(base, I2C_OPENCORES_CR_WR_MSK|I2C_OPENCORES_CR_NACK_MSK|I2C_OPENCORES_CR_SPIM_MSK );
|
||||
/* wait for the trnasaction to be over.*/
|
||||
while( IORD_I2C_OPENCORES_SR(base) & I2C_OPENCORES_SR_TIP_MSK);
|
||||
}
|
||||
}
|
1
software/sys_controller_bsp/drivers/src/i2c_opencores.c
Symbolic link
1
software/sys_controller_bsp/drivers/src/i2c_opencores.c
Symbolic link
@ -0,0 +1 @@
|
||||
../../../../ip/i2c_opencores/HAL/src/i2c_opencores.c
|
Loading…
x
Reference in New Issue
Block a user