arm: mvebu: Add DM and OF_CONTROL support to SPL
This patch adds full DM support to the SPL on MVEBU. Currently
only serial is supported. Other drivers will follow.
This patch also adds the necessary config values for the DEBUG UART
to the MVEBU defconfig files. This came in handy while implementing
this DM support.
Additionally, the mvebu specific SPL linker script is removed and
this common one is used instead:
arch/arm/cpu/u-boot-spl.lds
This common linker script already handles all special cases. No need
to reinvent the wheel for MVEBU here.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <dirk.eibach@gdsys.cc>
Cc: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c
index 0ab729a..4eeef2d 100644
--- a/arch/arm/mach-mvebu/spl.c
+++ b/arch/arm/mach-mvebu/spl.c
@@ -1,10 +1,13 @@
/*
- * Copyright (C) 2014 Stefan Roese <sr@denx.de>
+ * Copyright (C) 2014-2015 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <dm.h>
+#include <debug_uart.h>
+#include <fdtdec.h>
#include <spl.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
@@ -31,6 +34,8 @@
void board_init_f(ulong dummy)
{
+ int ret;
+
#ifndef CONFIG_MVEBU_BOOTROM_UARTBOOT
/*
* Only call arch_cpu_init() when not returning to the
@@ -51,6 +56,27 @@
*/
board_early_init_f();
+ /* Example code showing how to enable the debug UART on MVEBU */
+#ifdef EARLY_UART
+ /*
+ * Debug UART can be used from here if required:
+ *
+ * debug_uart_init();
+ * printch('a');
+ * printhex8(0x1234);
+ * printascii("string");
+ */
+#endif
+
+ ret = spl_init();
+ if (ret) {
+ debug("spl_init() failed: %d\n", ret);
+ hang();
+ }
+
+ /* Use special translation offset for SPL */
+ dm_set_translation_offset(0xd0000000 - 0xf1000000);
+
preloader_console_init();
timer_init();