365 lines
16 KiB
C
365 lines
16 KiB
C
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//*****************************************************************************
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//
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// am_hal_flash.h
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//! @file
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//!
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//! @brief Functions for performing Flash operations.
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//!
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//! @addtogroup flash3 Flash
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//! @ingroup apollo3hal
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//! @{
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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// Copyright (c) 2020, Ambiq Micro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its
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// contributors may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// Third party software included in this distribution is subject to the
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// additional license terms as defined in the /docs/licenses directory.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// This is part of revision 2.4.2 of the AmbiqSuite Development Package.
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//
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//*****************************************************************************
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#ifndef AM_HAL_FLASH_H
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#define AM_HAL_FLASH_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <stdint.h>
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#include <stdbool.h>
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//*****************************************************************************
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//
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// Flash Program keys.
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//
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//*****************************************************************************
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#define AM_HAL_FLASH_PROGRAM_KEY 0x12344321
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#define AM_HAL_FLASH_INFO_KEY 0xD894E09E
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//*****************************************************************************
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//
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// Some helpful SRAM values and macros.
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//
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//*****************************************************************************
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#define AM_HAL_FLASH_SRAM_ADDR 0x10000000
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#define AM_HAL_FLASH_SRAM_SIZE (384 * 1024)
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#define AM_HAL_FLASH_SRAM_LARGEST_VALID_ADDR (AM_HAL_FLASH_SRAM_ADDR + AM_HAL_FLASH_SRAM_SIZE - 1)
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//*****************************************************************************
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//
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// Some helpful flash values and macros.
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//
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//*****************************************************************************
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#define AM_HAL_FLASH_ADDR 0x00000000
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#define AM_HAL_FLASH_INSTANCE_SIZE ( 512 * 1024 )
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#define AM_HAL_FLASH_NUM_INSTANCES 2
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#define AM_HAL_FLASH_PAGE_SIZE ( 8 * 1024 )
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#define AM_HAL_FLASH_INFO_SIZE AM_HAL_FLASH_PAGE_SIZE
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#define AM_HAL_FLASH_INSTANCE_PAGES ( AM_HAL_FLASH_INSTANCE_SIZE / AM_HAL_FLASH_PAGE_SIZE )
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#define AM_HAL_FLASH_TOTAL_SIZE ( AM_HAL_FLASH_INSTANCE_SIZE * AM_HAL_FLASH_NUM_INSTANCES )
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#define AM_HAL_FLASH_LARGEST_VALID_ADDR ( AM_HAL_FLASH_ADDR + AM_HAL_FLASH_TOTAL_SIZE - 1 )
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#define AM_HAL_FLASH_APPL_ADDR 0xC000
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//
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// Macros to determine whether a given address is a valid internal
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// flash or SRAM address.
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//
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#define ISADDRSRAM(x) ((x >= AM_HAL_FLASH_SRAM_ADDR) && \
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(x <= (AM_HAL_FLASH_SRAM_LARGEST_VALID_ADDR & ~0x3)))
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#if AM_HAL_FLASH_ADDR == 0x0
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#define ISADDRFLASH(x) (x <= (AM_HAL_FLASH_LARGEST_VALID_ADDR & ~0x3))
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#else
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#define ISADDRFLASH(x) ((x >= AM_HAL_FLASH_ADDR) && \
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(x <= (AM_HAL_FLASH_LARGEST_VALID_ADDR & ~0x3)))
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#endif
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//
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// Macros to describe the flash ROW layout.
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//
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#define AM_HAL_FLASH_ROW_WIDTH_BYTES (512)
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//
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// Convert an absolute flash address to an instance
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//
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#define AM_HAL_FLASH_ADDR2INST(addr) ( ( addr >> 19 ) & (AM_HAL_FLASH_NUM_INSTANCES - 1) )
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//
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// Convert an absolute flash address to a page number relative to the instance
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//
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#define AM_HAL_FLASH_ADDR2PAGE(addr) ( ( addr >> 13 ) & 0x3F )
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//
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// Convert an absolute flash address to an absolute page number
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//
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#define AM_HAL_FLASH_ADDR2ABSPAGE(addr) ( addr >> 13 )
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//*****************************************************************************
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//
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//! Given an integer number of microseconds, convert to a value representing
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//! the number of am_hal_flash_delay() cycles that will provide that amount
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//! of delay. This macro is designed to take into account some of the call
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//! overhead and latencies.
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//!
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//! e.g. To provide a 10us delay:
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//! am_hal_flash_delay( FLASH_CYCLES_US(10) );
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//!
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//! As of SDK 2.1, burst mode is accounted for in am_hal_flash_delay().
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//!
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//! The FLASH_CYCLES_US macro assumes:
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//! - Burst or normal mode operation.
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//! - If cache is not enabled, use FLASH_CYCLES_US_NOCACHE() instead.
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//
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//*****************************************************************************
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#define CYCLESPERITER (AM_HAL_CLKGEN_FREQ_MAX_MHZ / 3)
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#define FLASH_CYCLES_US(n) ((n * CYCLESPERITER) + 0)
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#define FLASH_CYCLES_US_NOCACHE(n) ( (n == 0) ? 0 : (n * CYCLESPERITER) - 5)
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//
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// Backward compatibility
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//
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#define am_hal_flash_program_otp am_hal_flash_program_info
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#define am_hal_flash_program_otp_sram am_hal_flash_program_info_sram
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//*****************************************************************************
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//
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//! Structure of pointers to helper functions invoking flash operations.
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//
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//! The functions we are pointing to here are in the Apollo 3
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//! integrated BOOTROM.
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//
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//*****************************************************************************
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typedef struct am_hal_flash_helper_struct
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{
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//
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// The basics.
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//
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int (*flash_mass_erase)(uint32_t, uint32_t);
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int (*flash_page_erase)(uint32_t, uint32_t, uint32_t);
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int (*flash_program_main)(uint32_t, uint32_t *, uint32_t *, uint32_t);
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int (*flash_program_info_area)(uint32_t, uint32_t, uint32_t *, uint32_t, uint32_t);
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//
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// Non-blocking variants, but be careful these are not interrupt safe so
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// mask interrupts while these very long operations proceed.
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//
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int (*flash_mass_erase_nb)(uint32_t, uint32_t);
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int (*flash_page_erase_nb)(uint32_t, uint32_t, uint32_t);
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int (*flash_page_erase2_nb)( uint32_t value, uint32_t address);
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bool (*flash_nb_operation_complete)(void);
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//
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// Useful utilities.
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//
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uint32_t (*flash_util_read_word)( uint32_t *);
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void (*flash_util_write_word)( uint32_t *, uint32_t);
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void (*bootrom_delay_cycles)(uint32_t ui32Cycles);
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//
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// Essentially these are recovery options.
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//
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int (*flash_info_erase)( uint32_t, uint32_t);
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int (*flash_info_plus_main_erase)( uint32_t, uint32_t);
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int (*flash_info_plus_main_erase_both)( uint32_t value);
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int (*flash_recovery)( uint32_t value);
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//
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// The following functions pointers will generally never be called from
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// user programs. They are here primarily to document these entry points
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// which are usable from a debugger or debugger script.
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//
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void (*flash_program_main_from_sram)(void);
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void (*flash_program_info_area_from_sram)(void);
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void (*flash_erase_main_pages_from_sram)(void);
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void (*flash_mass_erase_from_sram)(void);
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void (*flash_info_erase_from_sram)(void);
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void (*flash_info_plus_main_erase_from_sram)(void);
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void (*flash_nb_operation_complete_from_sram)(void);
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void (*flash_page_erase2_nb_from_sram)(void);
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void (*flash_recovery_from_sram)(void);
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} g_am_hal_flash_t;
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extern const g_am_hal_flash_t g_am_hal_flash;
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//*****************************************************************************
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//
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// Define some FLASH INFO SPACE values and macros.
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//
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//*****************************************************************************
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#define AM_HAL_FLASH_INFO_ADDR 0x50020000
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#define AM_HAL_FLASH_INFO_SECURITY_O 0x10
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#define AM_HAL_FLASH_INFO_WRITPROT_O 0x40
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#define AM_HAL_FLASH_INFO_COPYPROT_O 0x50
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#define AM_HAL_FLASH_INFO_SECURITY_ADDR (AM_HAL_FLASH_INFO_ADDR + AM_HAL_FLASH_INFO_SECURITY_O)
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#define AM_HAL_FLASH_INFO_WRITPROT_ADDR (AM_HAL_FLASH_INFO_ADDR + AM_HAL_FLASH_INFO_WRITPROT_O)
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#define AM_HAL_FLASH_INFO_COPYPROT_ADDR (AM_HAL_FLASH_INFO_ADDR + AM_HAL_FLASH_INFO_COPYPROT_O)
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#define AM_HAL_FLASH_INFO_CUST_TRIM_ADDR (AM_HAL_FLASH_INFO_ADDR + 0x14)
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//
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// Define the customer info signature data (at AM_HAL_FLASH_INFO_ADDR).
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// These bits must exist in the customer info space in order for many of the
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// security and protection functions to work.
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//
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#define AM_HAL_FLASH_INFO_SIGNATURE0 0x48EAAD88
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#define AM_HAL_FLASH_INFO_SIGNATURE1 0xC9705737
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#define AM_HAL_FLASH_INFO_SIGNATURE2 0x0A6B8458
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#define AM_HAL_FLASH_INFO_SIGNATURE3 0xE41A9D74
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//
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// Define the customer security bits (at AM_HAL_FLASH_INFO_SECURITY_ADDR)
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//
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#define AM_HAL_FLASH_INFO_SECURITY_DEBUGGERPROT_S 0
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#define AM_HAL_FLASH_INFO_SECURITY_SWOCTRL_S 1
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#define AM_HAL_FLASH_INFO_SECURITY_SRAMWIPE_S 2
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#define AM_HAL_FLASH_INFO_SECURITY_FLASHWIPE_S 3
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#define AM_HAL_FLASH_INFO_SECURITY_ENINFOPRGM_S 4
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#define AM_HAL_FLASH_INFO_SECURITY_ENINFOERASE_S 8
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#define AM_HAL_FLASH_INFO_SECURITY_BOOTLOADERSPIN_S 9
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#define AM_HAL_FLASH_INFO_SECURITY_DEBUGGERPROT_M ((uint32_t)(0x1 << AM_HAL_FLASH_INFO_SECURITY_DEBUGGERPROT_S))
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#define AM_HAL_FLASH_INFO_SECURITY_SWOCTRL_M ((uint32_t)(0x1 << AM_HAL_FLASH_INFO_SECURITY_SWOCTRL_S))
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#define AM_HAL_FLASH_INFO_SECURITY_SRAMWIPE_M ((uint32_t)(0x1 << AM_HAL_FLASH_INFO_SECURITY_SRAMWIPE_S))
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#define AM_HAL_FLASH_INFO_SECURITY_FLASHWIPE_M ((uint32_t)(0x1 << AM_HAL_FLASH_INFO_SECURITY_FLASHWIPE_S))
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#define AM_HAL_FLASH_INFO_SECURITY_ENINFOPRGM_M ((uint32_t)(0xF << AM_HAL_FLASH_INFO_SECURITY_ENINFOPRGM_S))
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#define AM_HAL_FLASH_INFO_SECURITY_ENINFOERASE_M ((uint32_t)(0x1 << AM_HAL_FLASH_INFO_SECURITY_ENINFOERASE_S))
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#define AM_HAL_FLASH_INFO_SECURITY_BOOTLOADERSPIN_M ((uint32_t)(0x1 << AM_HAL_FLASH_INFO_SECURITY_BOOTLOADERSPIN_S))
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#define AM_HAL_FLASH_INFO_SECURITY_DEEPSLEEP_M ((uint32_t)(0x1 << AM_HAL_FLASH_INFO_SECURITY_BOOTLOADERSPIN_S))
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#define AM_HAL_FLASH_INFO_SECURITY_DEEPSLEEP ((uint32_t)(0x0 << AM_HAL_FLASH_INFO_SECURITY_BOOTLOADERSPIN_S))
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//
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// Protection chunk macros
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// AM_HAL_FLASH_INFO_CHUNK2ADDR: Convert a chunk number to an address
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// AM_HAL_FLASH_INFO_CHUNK2INST: Convert a chunk number to an instance number
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// AM_HAL_FLASH_INFO_ADDR2CHUNK: Convert an address to a chunk number
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//
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#define AM_HAL_FLASH_INFO_CHUNKSIZE (16*1024)
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#define AM_HAL_FLASH_INFO_CHUNK2ADDR(n) (AM_HAL_FLASH_ADDR + (n << 14))
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#define AM_HAL_FLASH_INFO_CHUNK2INST(n) ((n >> 5) & 1
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#define AM_HAL_FLASH_INFO_ADDR2CHUNK(n) ((n) >> 14)
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//*****************************************************************************
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//
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// Function prototypes for the helper functions
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//
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//*****************************************************************************
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extern int am_hal_flash_mass_erase(uint32_t ui32ProgramKey, uint32_t ui32FlashInst);
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extern int am_hal_flash_page_erase(uint32_t ui32ProgramKey, uint32_t ui32FlashInst,
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uint32_t ui32PageNum);
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extern int am_hal_flash_program_main(uint32_t ui32ProgramKey, uint32_t *pSrc,
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uint32_t *pDst, uint32_t NumberOfWords);
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//
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// Recovery type functions for Customer INFO space.
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//
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extern int am_hal_flash_program_info(uint32_t ui32InfoKey, uint32_t ui32InfoInst,
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uint32_t *pui32Src, uint32_t ui32Offset,
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uint32_t ui32NumWords);
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extern int am_hal_flash_erase_info(uint32_t ui32InfoKey,
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uint32_t ui32Instance);
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extern int am_hal_flash_erase_main_plus_info(uint32_t ui32InfoKey,
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uint32_t ui32Instance);
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extern int am_hal_flash_erase_main_plus_info_both_instances(
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uint32_t ui32InfoKey);
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extern void am_hal_flash_recovery(uint32_t ui32RecoveryKey);
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//
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// This function safely writes to a peripheral or memory address while executing
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// from SRAM, thus avoiding any conflict with flash or INFO space.
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//
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extern void am_hal_flash_store_ui32(uint32_t *pui32Address, uint32_t ui32Data);
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//
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// BOOTROM resident reader, writer and delay utility functions.
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//
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extern uint32_t am_hal_flash_load_ui32(uint32_t *pui32Address);
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extern void am_hal_flash_delay(uint32_t ui32Iterations);
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extern uint32_t am_hal_flash_delay_status_change(uint32_t ui32Iterations,
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uint32_t ui32Address,
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uint32_t ui32Mask,
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uint32_t ui32Value);
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||
|
|
extern uint32_t am_hal_flash_delay_status_check(uint32_t ui32Iterations,
|
||
|
|
uint32_t ui32Address,
|
||
|
|
uint32_t ui32Mask,
|
||
|
|
uint32_t ui32Value,
|
||
|
|
bool bIsEqual);
|
||
|
|
|
||
|
|
//
|
||
|
|
// These functions update security/protection bits in the customer INFO blOCK.
|
||
|
|
//
|
||
|
|
extern bool am_hal_flash_customer_info_signature_check(void);
|
||
|
|
extern bool am_hal_flash_info_signature_set(uint32_t ui32InfoKey);
|
||
|
|
extern int32_t am_hal_flash_info_erase_disable(uint32_t ui32InfoKey);
|
||
|
|
extern bool am_hal_flash_info_erase_disable_check(void);
|
||
|
|
extern int32_t am_hal_flash_info_program_disable(uint32_t ui32InfoKey, uint32_t ui32Mask);
|
||
|
|
extern uint32_t am_hal_flash_info_program_disable_get(void);
|
||
|
|
extern int32_t am_hal_flash_wipe_flash_enable(uint32_t ui32InfoKey);
|
||
|
|
extern bool am_hal_flash_wipe_flash_enable_check(void);
|
||
|
|
extern int32_t am_hal_flash_wipe_sram_enable(uint32_t ui32InfoKey);
|
||
|
|
extern bool am_hal_flash_wipe_sram_enable_check(void);
|
||
|
|
extern int32_t am_hal_flash_swo_disable(uint32_t ui32InfoKey);
|
||
|
|
extern bool am_hal_flash_swo_disable_check(void);
|
||
|
|
extern int32_t am_hal_flash_debugger_disable(uint32_t ui32InfoKey);
|
||
|
|
extern bool am_hal_flash_debugger_disable_check(void);
|
||
|
|
|
||
|
|
extern int32_t am_hal_flash_copy_protect_set(uint32_t ui32InfoKey,
|
||
|
|
uint32_t *pui32StartAddress,
|
||
|
|
uint32_t *pui32StopAddress);
|
||
|
|
extern bool am_hal_flash_copy_protect_check(uint32_t *pui32StartAddress,
|
||
|
|
uint32_t *pui32StopAddress);
|
||
|
|
extern int32_t am_hal_flash_write_protect_set(uint32_t ui32InfoKey,
|
||
|
|
uint32_t *pui32StartAddress,
|
||
|
|
uint32_t *pui32StopAddress);
|
||
|
|
extern bool am_hal_flash_write_protect_check(uint32_t *pui32StartAddress,
|
||
|
|
uint32_t *pui32StopAddress);
|
||
|
|
extern int am_hal_flash_clear_bits(uint32_t ui32ProgramKey,
|
||
|
|
uint32_t *pui32Addr,
|
||
|
|
uint32_t ui32BitMask);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif // AM_HAL_FLASH_H
|
||
|
|
|
||
|
|
//*****************************************************************************
|
||
|
|
//
|
||
|
|
// End Doxygen group.
|
||
|
|
//! @}
|
||
|
|
//
|
||
|
|
//*****************************************************************************
|