diff mbox series

[1/2] arm64: zynqmp: Add support for debug uart also for U-Boot proper

Message ID 49ecdd5df5f97e1f2eff8b8335c0068cf6358261.1584691425.git.michal.simek@xilinx.com
State Accepted
Commit c0adba572108677c23d6aa58173f9869ea3a5819
Headers show
Series [1/2] arm64: zynqmp: Add support for debug uart also for U-Boot proper | expand

Commit Message

Michal Simek March 20, 2020, 8:03 a.m. UTC
board_early_init_f() is the right location where debug uart can be
configurated (after MIO initialization).
The patch is taking this call from SPL to also make it available for U-Boot
proper.

Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 arch/arm/mach-zynqmp/spl.c   |  6 ------
 board/xilinx/zynqmp/zynqmp.c | 15 ++++++++++++---
 2 files changed, 12 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm/mach-zynqmp/spl.c b/arch/arm/mach-zynqmp/spl.c
index b3830182e250..c53945e57f39 100644
--- a/arch/arm/mach-zynqmp/spl.c
+++ b/arch/arm/mach-zynqmp/spl.c
@@ -6,7 +6,6 @@ 
  */
 
 #include <common.h>
-#include <debug_uart.h>
 #include <init.h>
 #include <spl.h>
 
@@ -21,11 +20,6 @@  void board_init_f(ulong dummy)
 	board_early_init_f();
 	board_early_init_r();
 
-#ifdef CONFIG_DEBUG_UART
-	/* Uart debug for sure */
-	debug_uart_init();
-	puts("Debug uart enabled\n"); /* or printch() */
-#endif
 	/* Delay is required for clocks to be propagated */
 	udelay(1000000);
 }
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index c6c55caa1ce0..04fd3bd0a443 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -6,6 +6,7 @@ 
 
 #include <common.h>
 #include <cpu_func.h>
+#include <debug_uart.h>
 #include <env.h>
 #include <init.h>
 #include <sata.h>
@@ -319,13 +320,21 @@  static char *zynqmp_get_silicon_idcode_name(void)
 
 int board_early_init_f(void)
 {
-	int ret = 0;
-
 #if defined(CONFIG_ZYNQMP_PSU_INIT_ENABLED)
+	int ret;
+
 	ret = psu_init();
+	if (ret)
+		return ret;
 #endif
 
-	return ret;
+#ifdef CONFIG_DEBUG_UART
+	/* Uart debug for sure */
+	debug_uart_init();
+	puts("Debug uart enabled\n"); /* or printch() */
+#endif
+
+	return 0;
 }
 
 static int multi_boot(void)