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arm: Init the debug UART

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At present we don't init the debug UART in the generic ARM code, but
instead leave it to individual machines to handle. This is not the
way it is supposed to work.

Add the required init to the crt files. This ensures that the UART
is available as early as possible and that the announcement appears
when it should, if enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2021-11-03 07:16:06 -06:00 committed by Tom Rini
parent 31ec464d65
commit 0dba45864b
2 changed files with 8 additions and 0 deletions
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4
arch/arm/lib/crt0.S
View file

@ -109,6 +109,10 @@ ENTRY(_main)
mov r9, r0
bl board_init_f_init_reserve
#if defined(CONFIG_DEBUG_UART) && CONFIG_IS_ENABLED(SERIAL)
bl debug_uart_init
#endif
#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_EARLY_BSS)
CLEAR_BSS
#endif

4
arch/arm/lib/crt0_64.S
View file

@ -91,6 +91,10 @@ ENTRY(_main)
mov x18, x0
bl board_init_f_init_reserve
#if defined(CONFIG_DEBUG_UART) && CONFIG_IS_ENABLED(SERIAL)
bl debug_uart_init
#endif
mov x0, #0
bl board_init_f