Hi Tim,
On 7 April 2016 at 11:20, Tim Chick <tim.ch...@mediatek.com> wrote:
> Sorry for top posting. Not in the office at the moment.
>
> Yes, I call debug_uart_init() before I have SDRAM, in lowlevel_init(). I
> need the debug uart to help me debug lowlevel_init!
>
> Thanks,
> Tim
>
>
> -----Original Message-----
> From: Daniel Schwierzeck [mailto:daniel.schwierz...@gmail.com]
> Sent: 07 April 2016 17:48
> To: Tim Chick <tim.ch...@mediatek.com>
> Cc: yamada.masah...@socionext.com; u-boot@lists.denx.de; Simon Glass
> <s...@chromium.org>; Stefan Roese <s...@denx.de>
> Subject: Re: [U-Boot] [PATCH] debug_uart: output CR along with LF
>
> Hi Tim,
>
> 2016-04-04 17:16 GMT+02:00 Tim Chick <tim.ch...@mediatek.com>:
>> Hi Masahiro,
>>
>> This patch breaks the debug_uart on my MIPS board. It means printascii now
>> uses the stack, and my board does not have a stack when debug_uart_init is
>> called. debug_uart_init calls printascii if DEBUG_UART_ANNOUNCE is defined.
>
> do you call debug_uart_init() in lowlevel_init()?
>
>>
>> The patch below fixes it, and keeps your change:
Yes your patch looks correct to me. I have also used the debug UART
without a stack.
Reviewed-by: Simon Glass <s...@chromium.org>
>>
>> Thanks,
>> Tim
>>
>>
>> ---
>>
>> diff --git a/include/debug_uart.h b/include/debug_uart.h
>> index 0d640b9..2980ae6 100644
>> --- a/include/debug_uart.h
>> +++ b/include/debug_uart.h
>> @@ -115,17 +115,23 @@ void printhex8(uint value);
>> * Now define some functions - this should be inserted into the serial
>> driver
>> */
>> #define DEBUG_UART_FUNCS \
>> - void printch(int ch) \
>> +\
>> + static inline void _printch(int ch) \
>> { \
>> if (ch == '\n') \
>> _debug_uart_putc('\r'); \
>> _debug_uart_putc(ch); \
>> } \
>> \
>> + void printch(int ch) \
>> + { \
>> + _printch(ch); \
>> + } \
>> +\
>> void printascii(const char *str) \
>> { \
>> while (*str) \
>> - printch(*str++); \
>> + _printch(*str++); \
>> } \
>> \
>> static inline void printhex1(uint digit) \
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>
>
>
> --
> - Daniel
>
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