Re: [U-Boot] [U-Boot, v2, 1/7] spl: armv7m: to keep ARM v7M in thumb mode before booting next image

On Sun, May 28, 2017 at 12:55:08PM -0700, Vikas Manocha wrote:

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

Reviewed-by: Tom Rini trini@konsulko.com