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| author | Armin van der Togt <armin@otheruse.nl> | 2017-03-02 17:31:14 +0100 |
|---|---|---|
| committer | Freddie Chopin <freddie.chopin@gmail.com> | 2017-04-24 07:03:59 +0100 |
| commit | ca9dcc86d7d9f465950a0670a8c7a852ae2ca798 (patch) | |
| tree | 6e6492401275e1f305b7cb7252a7851dacff73ea /src/flash | |
| parent | 2e0e6c5634b65043938ab4eb6244566b747ddc06 (diff) | |
| download | riscv-openocd-ca9dcc86d7d9f465950a0670a8c7a852ae2ca798.zip riscv-openocd-ca9dcc86d7d9f465950a0670a8c7a852ae2ca798.tar.gz riscv-openocd-ca9dcc86d7d9f465950a0670a8c7a852ae2ca798.tar.bz2 | |
Fix flash writing on stm32l0
Fix "couldn't use loader, falling back to page memory writes" error on
stm32l0 which was caused by the use of cortex-m3 instructions in the
flash loader code. The loader is rewritten using cortex-m0 compatible
instructions
Signed-off-by: Armin van der Togt <armin@otheruse.nl>
Change-Id: If23027b8e09f74e45129e1f8452a04bb994c424e
Reviewed-on: http://openocd.zylin.com/4036
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Diffstat (limited to 'src/flash')
| -rw-r--r-- | src/flash/nor/stm32lx.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/src/flash/nor/stm32lx.c b/src/flash/nor/stm32lx.c index 0b39233..63dc961 100644 --- a/src/flash/nor/stm32lx.c +++ b/src/flash/nor/stm32lx.c @@ -450,19 +450,7 @@ static int stm32lx_write_half_pages(struct flash_bank *bank, const uint8_t *buff /* see contib/loaders/flash/stm32lx.S for src */ static const uint8_t stm32lx_flash_write_code[] = { - /* write_word: */ - 0x00, 0x23, /* movs r3, #0 */ - 0x04, 0xe0, /* b test_done */ - - /* write_word: */ - 0x51, 0xf8, 0x04, 0xcb, /* ldr ip, [r1], #4 */ - 0x40, 0xf8, 0x04, 0xcb, /* str ip, [r0], #4 */ - 0x01, 0x33, /* adds r3, #1 */ - - /* test_done: */ - 0x93, 0x42, /* cmp r3, r2 */ - 0xf8, 0xd3, /* bcc write_word */ - 0x00, 0xbe, /* bkpt 0 */ + 0x92, 0x00, 0x8A, 0x18, 0x01, 0xE0, 0x08, 0xC9, 0x08, 0xC0, 0x91, 0x42, 0xFB, 0xD1, 0x00, 0xBE }; /* Make sure we're performing a half-page aligned write. */ @@ -588,7 +576,7 @@ static int stm32lx_write_half_pages(struct flash_bank *bank, const uint8_t *buff * is reduced by 50% using this slower method. */ - LOG_WARNING("couldn't use loader, falling back to page memory writes"); + LOG_WARNING("Couldn't use loader, falling back to page memory writes"); while (count > 0) { uint32_t this_count; |