arm: add highbank support

currently only tested under qemu

qemu-system-arm -M highbank -nographic -m 4089 -kernel build/highbank/arch/arm/pbl/zbarebox -tftp "." -drive id=disk,if=ide,file=disk.img -device ide-drive,drive=disk,bus=ide.0

with:
 - timer (AMBA SP804)
 - uart (AMBA PL011)
 - gpio (AMBA PL061)
 - ahci
 - net (XGMAC)

Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

5 files changed, 109 insertions, 0 deletions

diff --git a/arch/arm/boards/highbank/Makefile b/arch/arm/boards/highbank/Makefile
new file mode 100644
index 0000000000..98921a48b4
--- /dev/null
+++ b/arch/arm/boards/highbank/Makefile
@@ -0,0 +1,4 @@
+obj-y += init.o
+
+obj-y += lowlevel.o
+pbl-y += lowlevel.o
diff --git a/arch/arm/boards/highbank/config.h b/arch/arm/boards/highbank/config.h
new file mode 100644
index 0000000000..25bb18f787
--- /dev/null
+++ b/arch/arm/boards/highbank/config.h
@@ -0,0 +1,5 @@
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#endif	/* __CONFIG_H */
diff --git a/arch/arm/boards/highbank/env/config b/arch/arm/boards/highbank/env/config
new file mode 100644
index 0000000000..1bb2c493b2
--- /dev/null
+++ b/arch/arm/boards/highbank/env/config
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+# use 'dhcp' to do dhcp in barebox and in kernel
+# use 'none' if you want to skip kernel ip autoconfiguration
+ip=dhcp
+global.dhcp.vendor_id=barebox-highbank
+
+# or set your networking parameters here
+#eth0.ipaddr=a.b.c.d
+#eth0.netmask=a.b.c.d
+#eth0.gateway=a.b.c.d
+#eth0.serverip=a.b.c.d
+
+# can be either 'nfs', 'tftp' or 'nor'
+kernel_loc=tftp
+# can be either 'net', 'nor' or 'initrd'
+rootfs_loc=initrd
+
+# can be either 'jffs2' or 'ubifs'
+rootfs_type=ubifs
+rootfsimage=root.$rootfs_type
+
+kernelimage=zImage
+#kernelimage=uImage
+#kernelimage=Image
+#kernelimage=Image.lzo
+
+autoboot_timeout=3
+
+bootargs="console=ttyAMA0,115200n8 CONSOLE=/dev/ttyAMA0"
+
+# set a fancy prompt (if support is compiled in)
+PS1="\e[1;31m[barebox@\h]:\w\e[0m\n# "
diff --git a/arch/arm/boards/highbank/init.c b/arch/arm/boards/highbank/init.c
new file mode 100644
index 0000000000..b7936428dc
--- /dev/null
+++ b/arch/arm/boards/highbank/init.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <init.h>
+#include <asm/armlinux.h>
+#include <asm/system_info.h>
+#include <generated/mach-types.h>
+#include <mach/devices.h>
+#include <environment.h>
+#include <partition.h>
+#include <sizes.h>
+#include <io.h>
+
+static int highbank_mem_init(void)
+{
+	highbank_add_ddram(4089 << 20);
+
+	return 0;
+}
+mem_initcall(highbank_mem_init);
+
+static int highbank_devices_init(void)
+{
+	highbank_register_gpio(0);
+	highbank_register_gpio(1);
+	highbank_register_gpio(2);
+	highbank_register_gpio(3);
+	highbank_register_ahci();
+	highbank_register_xgmac(0);
+	highbank_register_xgmac(1);
+
+	armlinux_set_bootparams((void *)(0x00000100));
+
+	devfs_add_partition("nvram", 0x00000, SZ_16K, DEVFS_PARTITION_FIXED, "env0");
+
+	return 0;
+}
+device_initcall(highbank_devices_init);
+
+static int highbank_console_init(void)
+{
+	highbank_register_uart();
+
+	return 0;
+}
+console_initcall(highbank_console_init);
diff --git a/arch/arm/boards/highbank/lowlevel.c b/arch/arm/boards/highbank/lowlevel.c
new file mode 100644
index 0000000000..b862a1f857
--- /dev/null
+++ b/arch/arm/boards/highbank/lowlevel.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <sizes.h>
+#include <asm/barebox-arm-head.h>
+#include <asm/barebox-arm.h>
+#include <asm/system_info.h>
+
+void __naked barebox_arm_reset_vector(void)
+{
+	arm_cpu_lowlevel_init();
+	barebox_arm_entry(0x00000000, SZ_512M, 0);
+}