armV7R: K3: am654: Activate early console functionality

Activate early console functionality on AM65x devices to allow for
early diagnostic messages until the main console is ready
to get activated.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

diff --git a/arch/arm/mach-k3/am6_init.c b/arch/arm/mach-k3/am6_init.c
index 8d107b8..63cd7e0 100644 (file)
--- a/arch/arm/mach-k3/am6_init.c
+++ b/arch/arm/mach-k3/am6_init.c
@@ -109,6 +109,16 @@ void board_init_f(ulong dummy)
        /* Init DM early in-order to invoke system controller */
        spl_early_init();
 
+#ifdef CONFIG_K3_EARLY_CONS
+       /*
+        * Allow establishing an early console as required for example when
+        * doing a UART-based boot. Note that this console may not "survive"
+        * through a SYSFW PM-init step and will need a re-init in some way
+        * due to changing module clock frequencies.
+        */
+       early_console_init();
+#endif
+
 #ifdef CONFIG_K3_LOAD_SYSFW
        /*
         * Process pinctrl for the serial0 a.k.a. WKUP_UART0 module and continue