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(parent: 156d64f) | patch
spl: armv7m: to keep ARM v7M in thumb mode before booting next image
authorVikas Manocha <vikas.manocha@st.com>
Sun, 28 May 2017 19:55:08 +0000 (12:55 -0700)
committerTom Rini <trini@konsulko.com>
Fri, 9 Jun 2017 01:00:27 +0000 (21:00 -0400)
commit6bcdd66d1c3766a970e06a61a7233daacb5045db
tree424d34a36073323df3dc75f2f22fa6d13bbb1444tree | snapshot
parent156d64fa55e9914b144c5e83f2a9e13d1223a4d3commit | diff
spl: armv7m: to keep ARM v7M in thumb mode before booting next image

On ARM v7M, the processor will return to ARM mode when executing blx
instruction with bit 0 of the address == 0. Always set it to 1 to stay in thumb
mode.

At present, it is applied only for raw U-Boot. This patch moves it to just
before booting next image. This way armv7m will be in thumb mode for any image
like raw or image with header like zImage or standard U-Boot.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
common/spl/spl.c diff | blob | history
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