When building a multi_v7_defconfig kernel it is not possible to configure DEBUG_LL to use any serial device except a ARM Primecell PL01X, or more accurately and worse, it is possible to configure a different serial device but KConfig does not honour this request. In fact this also overrides the user selection for some of the single platform kernels, for example I don't think DEBUG_LL can be targetted at ICE or semihosted supervisor for ARCH_VERSATILE.
This happens because DEBUG_UART_PL01X is automatically enabled by some architectures and this means user decisions made regarding the DEBUG_LL backend will be overriden. Problem is fixed by removing the automatic enabling of this option.
Signed-off-by: Daniel Thompson daniel.thompson@linaro.org --- arch/arm/Kconfig.debug | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 459c7f9..26536f7 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -1032,12 +1032,7 @@ config DEBUG_LL_INCLUDE
# Compatibility options for PL01x config DEBUG_UART_PL01X - def_bool ARCH_EP93XX || \ - ARCH_INTEGRATOR || \ - ARCH_SPEAR3XX || \ - ARCH_SPEAR6XX || \ - ARCH_SPEAR13XX || \ - ARCH_VERSATILE + bool
# Compatibility options for 8250 config DEBUG_UART_8250