andrius
/
arm-trusted-firmware
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

marvell: uart: a3720: Implement console_a3700_core_flush 

Implementation is simple, just wait for the TX FIFO to be empty.

Without this patch TF-A on A3720 truncate the last line:

  NOTICE:  BL31: Built : 16:1

With this patch TF-A on A3720 print correctly also the last line:

  NOTICE:  BL31: Built : 19:03:31, Dec 23 2020

Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: I2f2ea42beab66ba132afdb400ca7898c5419db09
This commit is contained in:
Pali Rohár 2020-12-23 19:23:26 +01:00
parent db7571a2e6
commit e63e4140e0
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/marvell/uart/a3700_console.S
View File

@ -232,6 +232,11 @@ endfunc console_a3700_getc
* ---------------------------------------------
*/
func console_a3700_core_flush
/* Wait for the TX FIFO to be empty */
1: ldr w1, [x0, #UART_STATUS_REG]
and w1, w1, #UARTLSR_TXFIFOEMPTY
cmp w1, #UARTLSR_TXFIFOEMPTY
b.ne 1b
ret
endfunc console_a3700_core_flush