[U-Boot,4/6] arm: socfpga: cyclone5: handle debug uart

Message ID 20180809190420.28093-5-simon.k.r.goldschmidt@gmail.com
State Superseded
Delegated to: Marek Vasut
Headers show
Series
  • Get socfpga gen5 SPL working again.
Related show

Commit Message

Simon Goldschmidt Aug. 9, 2018, 7:04 p.m.
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>
---
v2:
 - don't change printf() to debug() in reset_manager_gen5.c
  socfpga_bridges_reset()

 arch/arm/mach-socfpga/spl_gen5.c | 6 ++++++
 1 file changed, 6 insertions(+)

Patch

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);