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ARC: init debug uart in early common arc code

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The debug UART is intended for use very early in U-Boot to debug
problems before serial drivers are up.

Call debug_uart_init right before board_init_f.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
This commit is contained in:
Eugeniy Paltsev 2018-05-03 15:01:58 +03:00 committed by Alexey Brodkin
parent 8a9dc16e4d
commit 429fa25e17
1 changed files with 5 additions and 0 deletions
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5
arch/arc/lib/start.S
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@ -75,6 +75,11 @@ ENTRY(_start)
/* Initialize reserved area - note: r0 already contains address */
bl board_init_f_init_reserve
#ifdef CONFIG_DEBUG_UART
/* Earliest point to set up early debug uart */
bl debug_uart_init
#endif
/* Zero the one and only argument of "board_init_f" */
mov_s %r0, 0
bl board_init_f