[U-Boot] [PATCH 2/2] arm: amx3xx: Add support for early debug

[Lokesh Vutla]

For early debug, the following configs needs to be enabled:

CONFIG_DEBUG_UART=y
CONFIG_DEBUG_UART_OMAP=y
CONFIG_DEBUG_UART_BASE=0x44e09000
CONFIG_DEBUG_UART_CLOCK=48000000
CONFIG_DEBUG_UART_SHIFT=2
CONFIG_DEBUG_UART_ANNOUNCE=y

Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
---
- Depends on DEBUG_UART_OMAP support patch[1]
- Explicitly did not enable all the above configs by default
  as early debug is not need on every boot.

 arch/arm/mach-omap2/am33xx/board.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-omap2/am33xx/board.c b/arch/arm/mach-omap2/am33xx/board.c
index 78dec2b63c..2769f10311 100644
--- a/arch/arm/mach-omap2/am33xx/board.c
+++ b/arch/arm/mach-omap2/am33xx/board.c
@@ -10,6 +10,7 @@
 
 #include <common.h>
 #include <dm.h>
+#include <debug_uart.h>
 #include <errno.h>
 #include <ns16550.h>
 #include <spl.h>
@@ -310,6 +311,9 @@ void early_system_init(void)
 	set_uart_mux_conf();
 	setup_early_clocks();
 	uart_soft_reset();
+#ifdef CONFIG_DEBUG_UART_OMAP
+	debug_uart_init();
+#endif
 #ifdef CONFIG_TI_I2C_BOARD_DETECT
 	do_board_detect();
 #endif
-- 
2.11.0