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Diffstat (limited to 'lib/stm32f2/flash.c')
-rw-r--r--lib/stm32f2/flash.c250
1 files changed, 0 insertions, 250 deletions
diff --git a/lib/stm32f2/flash.c b/lib/stm32f2/flash.c
deleted file mode 100644
index e9bc73e..0000000
--- a/lib/stm32f2/flash.c
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
- * This file is part of the libopencm3 project.
- *
- * Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
- * Copyright (C) 2010 Mark Butler <mbutler@physics.otago.ac.nz>
- *
- * 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/>.
- */
-
-#include <libopencm3/stm32/f2/flash.h>
-
-static inline void flash_set_program_size(u32 psize)
-{
- FLASH_CR &= ~(((1 << 0) | (1 << 1)) << 8);
- FLASH_CR |= psize;
-}
-
-void flash_data_cache_enable(void)
-{
- FLASH_ACR |= FLASH_DCE;
-}
-
-void flash_dcache_disable(void)
-{
- FLASH_ACR &= ~FLASH_DCE;
-}
-
-void flash_icache_enable(void)
-{
- FLASH_ACR |= FLASH_ICE;
-}
-
-void flash_icache_disable(void)
-{
- FLASH_ACR &= ~FLASH_ICE;
-}
-
-void flash_prefetch_enable(void)
-{
- FLASH_ACR |= FLASH_PRFTEN;
-}
-
-void flash_prefetch_disable(void)
-{
- FLASH_ACR &= ~FLASH_PRFTEN;
-}
-
-void flash_dcache_reset(void)
-{
- FLASH_ACR |= FLASH_DCRST;
-}
-
-void flash_icache_reset(void)
-{
- FLASH_ACR |= FLASH_ICRST;
-}
-
-void flash_set_ws(u32 ws)
-{
- u32 reg32;
-
- reg32 = FLASH_ACR;
- reg32 &= ~((1 << 0) | (1 << 1) | (1 << 2));
- reg32 |= ws;
- FLASH_ACR = reg32;
-}
-
-void flash_unlock(void)
-{
- /* Authorize the FPEC access. */
- FLASH_KEYR = FLASH_KEY1;
- FLASH_KEYR = FLASH_KEY2;
-}
-
-void flash_lock(void)
-{
- FLASH_CR |= FLASH_LOCK;
-}
-
-void flash_clear_pgserr_flag(void)
-{
- FLASH_SR |= FLASH_PGSERR;
-}
-
-void flash_clear_pgperr_flag(void)
-{
- FLASH_SR |= FLASH_PGPERR;
-}
-
-void flash_clear_pgaerr_flag(void)
-{
- FLASH_SR |= FLASH_PGAERR;
-}
-
-void flash_clear_eop_flag(void)
-{
- FLASH_SR |= FLASH_EOP;
-}
-
-void flash_clear_wrperr_flag(void)
-{
- FLASH_SR |= FLASH_WRPERR;
-}
-
-void flash_clear_bsy_flag(void)
-{
- FLASH_SR &= ~FLASH_BSY;
-}
-
-void flash_clear_status_flags(void)
-{
- flash_clear_pgserr_flag();
- flash_clear_pgperr_flag();
- flash_clear_pgaerr_flag();
- flash_clear_eop_flag();
- flash_clear_wrperr_flag();
- flash_clear_bsy_flag();
-}
-
-void flash_unlock_option_bytes(void)
-{
- FLASH_OPTKEYR = FLASH_OPTKEY1;
- FLASH_OPTKEYR = FLASH_OPTKEY2;
-}
-
-void flash_lock_option_bytes(void)
-{
- FLASH_OPTCR |= FLASH_OPTLOCK;
-}
-
-void flash_wait_for_last_operation(void)
-{
- while ((FLASH_SR & FLASH_BSY) == FLASH_BSY)
- ;
-}
-
-void flash_program_double_word(u32 address, u64 data, u32 program_size)
-{
- /* Ensure that all flash operations are complete. */
- flash_wait_for_last_operation();
- flash_set_program_size(program_size);
-
- /* Enable writes to flash. */
- FLASH_CR |= FLASH_PG;
-
- /* Program the first half of the word. */
- MMIO64(address) = data;
-
- /* Wait for the write to complete. */
- flash_wait_for_last_operation();
-
- /* Disable writes to flash. */
- FLASH_CR &= ~FLASH_PG;
-}
-
-void flash_program_word(u32 address, u32 data, u32 program_size)
-{
- /* Ensure that all flash operations are complete. */
- flash_wait_for_last_operation();
- flash_set_program_size(program_size);
-
- /* Enable writes to flash. */
- FLASH_CR |= FLASH_PG;
-
- /* Program the first half of the word. */
- MMIO32(address) = data;
-
- /* Wait for the write to complete. */
- flash_wait_for_last_operation();
-
- /* Disable writes to flash. */
- FLASH_CR &= ~FLASH_PG;
-}
-
-void flash_program_half_word(u32 address, u16 data, u32 program_size)
-{
- flash_wait_for_last_operation();
- flash_set_program_size(program_size);
-
- FLASH_CR |= FLASH_PG;
-
- MMIO16(address) = data;
-
- flash_wait_for_last_operation();
-
- FLASH_CR &= ~FLASH_PG; /* Disable the PG bit. */
-}
-
-void flash_program_byte(u32 address, u8 data, u32 program_size)
-{
- flash_wait_for_last_operation();
- flash_set_program_size(program_size);
-
- FLASH_CR |= FLASH_PG;
-
- MMIO8(address) = data;
-
- flash_wait_for_last_operation();
-
- FLASH_CR &= ~FLASH_PG; /* Disable the PG bit. */
-}
-
-void flash_erase_sector(u32 sector, u32 program_size)
-{
- flash_wait_for_last_operation();
- flash_set_program_size(program_size);
-
- FLASH_CR &= ~(((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3)) << 3);
- FLASH_CR |= sector;
- FLASH_CR |= FLASH_STRT;
-
- flash_wait_for_last_operation();
- FLASH_CR &= ~FLASH_SER;
- FLASH_CR &= ~(((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3)) << 3);
-}
-
-void flash_erase_all_sectors(u32 program_size)
-{
- flash_wait_for_last_operation();
- flash_set_program_size(program_size);
-
- FLASH_CR |= FLASH_MER; /* Enable mass erase. */
- FLASH_CR |= FLASH_STRT; /* Trigger the erase. */
-
- flash_wait_for_last_operation();
- FLASH_CR &= ~FLASH_MER; /* Disable mass erase. */
-}
-
-void flash_program_option_bytes(u32 data)
-{
- flash_wait_for_last_operation();
-
- if (FLASH_OPTCR & FLASH_OPTLOCK)
- flash_unlock_option_bytes();
-
- FLASH_OPTCR = data & ~0x3;
- FLASH_OPTCR |= FLASH_OPTSTRT; /* Enable option byte programming. */
- flash_wait_for_last_operation();
-}