[PATCH v2 2/3] m68k: m680x0: Initialise the debug uart

Angelo Dureghello angelo at kernel-space.org
Tue Mar 10 09:31:47 CET 2026


Acked-by: Angelo Dureghello <angelo at kernel-space.org>

On 3/10/26 06:58, Kuan-Wei Chiu wrote:
> +Cc Angelo since this touches arch/m68k/
> 
> On Mon, Mar 09, 2026 at 07:51:09PM +0900, Daniel Palmer wrote:
>> Once the stack is ready we can init the debug uart to help
>> with debugging so do that.
>>
>> Signed-off-by: Daniel Palmer <daniel at 0x0f.com>
>> ---
>>  arch/m68k/cpu/m680x0/start.S | 5 +++++
>>  1 file changed, 5 insertions(+)
>>
>> diff --git a/arch/m68k/cpu/m680x0/start.S b/arch/m68k/cpu/m680x0/start.S
>> index 0802ca1fca2c..fdfcd66f7785 100644
>> --- a/arch/m68k/cpu/m680x0/start.S
>> +++ b/arch/m68k/cpu/m680x0/start.S
>> @@ -42,6 +42,11 @@ ENTRY(_start)
>>  	/* Setup initial stack pointer */
>>  	move.l	#CFG_SYS_INIT_SP_ADDR, %sp
>>  
>> +	/* Setup the debug uart if enabled */
>> +#ifdef CONFIG_DEBUG_UART
>> +	bsr.l	debug_uart_init
>> +#endif
>> +
>>  	/*
>>  	 * Allocate Global Data (GD)
>>  	 * board_init_f_alloc_reserve(top) returns the new top of stack in %d0
>> -- 
>> 2.51.0
>>

-- Angelo



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