Add basic support from ARM Versatile/PB

tested with qemu only

qemu-system-arm -M versatilepb -monitor null -kernel barebox -net nic -net user -tftp "<uImage-path>/" -serial stdio

add -nographic if you do not want the lcd via sdl

Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>

update:
 - use default env
 - move arm_timer.h as in the kernel
 - add nor flash support
 - udpate defconfig
 - fix copyright copy from linux
 - fix ARCH_TEXT_BASE

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 37 insertions, 0 deletions

diff --git a/arch/arm/mach-versatile/include/mach/debug_ll.h b/arch/arm/mach-versatile/include/mach/debug_ll.h
new file mode 100644
index 0000000000..514fcfb1a0
--- /dev/null
+++ b/arch/arm/mach-versatile/include/mach/debug_ll.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2010 B Labs Ltd
+ * Author: Alexey Zaytsev <alexey.zaytsev@gmail.com>
+ *
+ * barebox is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * barebox is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with barebox.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __MACH_DEBUG_LL_H__
+#define   __MACH_DEBUG_LL_H__
+
+#include <linux/amba/serial.h>
+#include <asm/io.h>
+
+static inline void putc(char c)
+{
+	/* Wait until there is space in the FIFO */
+	while (readl(0x101F1000 + UART01x_FR) & UART01x_FR_TXFF);
+
+	/* Send the character */
+	writel(c, 0x101F1000 + UART01x_DR);
+
+	/* Wait to make sure it hits the line, in case we die too soon. */
+	while (readl(0x101F1000 + UART01x_FR) & UART01x_FR_TXFF);
+}
+
+#endif