On 12 November 2015 at 18:42, Ariel D'Alessandro
<[email protected]> wrote:
> CONFIG_DEBUG_UART is enabled in defconfig, but there's no Low-level
> debugging functions implemented, so build fails because of undefined
> references to `printch' in common/console.c.
> In order to fix this, enable CONFIG_DEBUG_LL.
>

I think you are fixing this the wrong way. This patch
solves the problem as well, and I think it's the right way:

[patch format is probably wasted]
@@ -34,6 +34,7 @@ CONFIG_REGULATOR_ACT8846=y
 CONFIG_RAM=y
 CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART=y
+CONFIG_DEBUG_UART_NS16550=y
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART_SHIFT=2

Without this fix, Altera JTAG UART is selected instead of NS16550.
I expect other defconfigs (e.g. chromebook_jerry_defconfig) to suffer
from this as well.

That said, I still haven't looked at the differences between
DEBUG_LL and DEBUG_UART.
-- 
Ezequiel GarcĂ­a, VanguardiaSur
www.vanguardiasur.com.ar
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