diff options
| author | Vincent Palatin <vpalatin@chromium.org> | 2012-05-01 17:32:17 -0700 |
|---|---|---|
| committer | Vincent Palatin <vpalatin@chromium.org> | 2012-05-09 01:13:26 +0000 |
| commit | 71c86b38c3862da28368acf0d44779eb1fcc088b (patch) | |
| tree | 8e7b6448217c7db7d32d5d05d6aca28e9dd95803 /core | |
| parent | 87b427829993e7c5b2fb66fc1e134ace43d28cf9 (diff) | |
| download | chrome-ec-71c86b38c3862da28368acf0d44779eb1fcc088b.tar.gz | |
stm32: add flash programming support
Implements the on-chip flash erasing and writing functions.
The actual writing is done from a routine in internal RAM (using the
special .iram.text section) with interrupt disabled as we cannot read
flash during the writing process.
The write-protect feature is only lightly tested.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BUG=chrome-os-partner:8865
TEST=run on Daisy, from the EC console, use flasherase and flashwrite
commands and observe the results using rw command.
Change-Id: I4c64cf28b23df52b18500b42a32a7d3668d45ba6
Diffstat (limited to 'core')
| -rw-r--r-- | core/cortex-m/ec.lds.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/core/cortex-m/ec.lds.S b/core/cortex-m/ec.lds.S index ba0b2733b5..ea89e241e9 100644 --- a/core/cortex-m/ec.lds.S +++ b/core/cortex-m/ec.lds.S @@ -76,6 +76,8 @@ SECTIONS *(.data.tasks) *(.data) . = ALIGN(4); + *(.iram.text) + . = ALIGN(4); __data_end = .; } > IRAM #if defined(SECTION_IS_RO) && defined(CONFIG_VBOOT) |