Layerscape DM_SERIAL (Was: Re: [PATCH v3 16/29] serial: Add semihosting driver)
sean.anderson at seco.com
Mon Mar 28 18:14:06 CEST 2022
On 3/28/22 12:03 PM, Tom Rini wrote:
> On Mon, Mar 28, 2022 at 11:36:46AM -0400, Sean Anderson wrote:
>> On 3/28/22 2:35 AM, Simon Glass wrote:
>> > But please can we drop the non-DM support?
>> Unfortunately, Layerscape does not support DM serial. I tried converting
>> it, but I ran into some unusual aborts. At the moment, I don't have time
>> to debug things further. And I thought that non-DM serial was ok for
> It is OK for SPL, and it needs migration for non-SPL. Can you make
> another thread with your conversion-that-fails for layerscape please?
Unfortunately, I didn't save my attempt. I believe it's just
diff --git a/include/configs/ls1046a_common.h b/include/configs/ls1046a_common.h
index 7552610e03..f7aaddd98c 100644
@@ -48,8 +48,10 @@
#define COUNTER_FREQUENCY 25000000 /* 25MHz */
/* Serial Port */
#define CONFIG_SYS_NS16550_REG_SIZE 1
#define CONFIG_SYS_NS16550_CLK (get_serial_clock())
/* SD boot SPL */
plus enabling the appropriate configs. I think I was using CONFIG_DM_SERIAL
and possibly CONFIG_NS16550_DYNAMIC.
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