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ARM: stm32: debug: add low-level debug support
authorGerald Baeza <gerald.baeza@st.com>
Thu, 27 Jul 2017 16:50:20 +0000 (16:50 +0000)
committerOlof Johansson <olof@lixom.net>
Mon, 12 Nov 2018 18:20:41 +0000 (10:20 -0800)
commitd88bb418b7cc0525254cb1723a40b7b4133bad01
tree824e07c884530059fcd56ee8a63c4eaf6715d20e
parentccda4af0f4b92f7b4c308d3acc262f4a7e3affad
ARM: stm32: debug: add low-level debug support

This adds low-level debug support on USART1 for STM32F4
and STM32F7.
Compiled via 'CONFIG_DEBUG_LL' and 'CONFIG_EARLY_PRINTK'.
Enabled via 'earlyprintk' in bootargs.

Signed-off-by: Gerald Baeza <gerald.baeza@st.com>
Signed-off-by: Bich Hemon <bich.hemon@st.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
arch/arm/Kconfig.debug
arch/arm/include/debug/stm32.S [new file with mode: 0644]