diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2019-07-12 07:10:19 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-07-12 07:10:19 +0200 |
| commit | f9dfe479ebacbb3efacef4525682546713b11597 (patch) | |
| tree | 64b26ae51c86b9b1419d8a62baf5d2f5948f3f51 /Documentation | |
| parent | ac5e1f63aafb73a6ea2356822029ef391b6234d2 (diff) | |
| parent | 9f30aa3f143eda22ba3cf9e36c05213239a2fe83 (diff) | |
| download | barebox-f9dfe479ebacbb3efacef4525682546713b11597.tar.gz barebox-f9dfe479ebacbb3efacef4525682546713b11597.tar.xz | |
Merge branch 'for-next/stm32'
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/user/reset-reason.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/user/reset-reason.rst b/Documentation/user/reset-reason.rst index 26d37f86dd..e46f2ca684 100644 --- a/Documentation/user/reset-reason.rst +++ b/Documentation/user/reset-reason.rst @@ -41,6 +41,10 @@ The following values can help to detect the reason why the bootloader runs: * ``EXT`` (EXTernal): some SoCs have special device pins for external reset signals other than the ``RST`` one. Application specific how to handle this state. +* ``BROWNOUT``: some SoCs detect undervoltage conditions and stay in reset + till the supply voltage crosses a predefined threshold voltage. This avoids + erratic behavior that may occur when running out-of-spec. Application specific + how to handle this state. It depends on your board/SoC and its features if the hardware is able to detect these reset reasons. Most of the time only ``POR`` and ``RST`` are supported |