From c0b4fc1a1bb20cccba48e9b58c974102389ad2d0 Mon Sep 17 00:00:00 2001
From: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Date: Mon, 13 Aug 2018 09:33:47 +0200
Subject: [PATCH] arm: socfpga: cyclone5: handle debug uart

If CONFIG_DEBUG_UART is enabled, correctly initialize
the debug uart before console is initialized to debug
early boot problems in SPL.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
---
 arch/arm/mach-socfpga/spl_gen5.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/mach-socfpga/spl_gen5.c b/arch/arm/mach-socfpga/spl_gen5.c
index 0d5526656d..0e685f6ee5 100644
--- a/arch/arm/mach-socfpga/spl_gen5.c
+++ b/arch/arm/mach-socfpga/spl_gen5.c
@@ -20,6 +20,7 @@
 #include <asm/arch/scu.h>
 #include <asm/arch/nic301.h>
 #include <asm/sections.h>
+#include <debug_uart.h>
 #include <fdtdec.h>
 #include <watchdog.h>
 
@@ -153,6 +154,11 @@ void board_init_f(ulong dummy)
 	/* unfreeze / thaw all IO banks */
 	sys_mgr_frzctrl_thaw_req();
 
+#ifdef CONFIG_DEBUG_UART
+	socfpga_per_reset(SOCFPGA_RESET(UART0), 0);
+	debug_uart_init();
+#endif
+
 	ret = spl_early_init();
 	if (ret) {
 		debug("spl_early_init() failed: %d\n", ret);