ARM: mvebu: Add initial support for Turris Omnia

Up to now only 2nd stage booting is tested and boots up to a prompt.
i2c and spi are working, ethernet, usb and sata don't.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

8 files changed, 62 insertions, 0 deletions

diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index f2d4d38785..9bbdd684fa 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -125,6 +125,7 @@ obj-$(CONFIG_MACH_TORADEX_COLIBRI_T20)		+= toradex-colibri-t20/
 obj-$(CONFIG_MACH_TOSHIBA_AC100)		+= toshiba-ac100/
 obj-$(CONFIG_MACH_TQMA53)			+= tqma53/
 obj-$(CONFIG_MACH_TQMA6X)			+= tqma6x/
+obj-$(CONFIG_MACH_TURRIS_OMNIA)			+= turris-omnia/
 obj-$(CONFIG_MACH_TX25)				+= karo-tx25/
 obj-$(CONFIG_MACH_TX28)				+= karo-tx28/
 obj-$(CONFIG_MACH_TX51)				+= karo-tx51/
diff --git a/arch/arm/boards/turris-omnia/Makefile b/arch/arm/boards/turris-omnia/Makefile
new file mode 100644
index 0000000000..01c7a259e9
--- /dev/null
+++ b/arch/arm/boards/turris-omnia/Makefile
@@ -0,0 +1,2 @@
+obj-y += board.o
+lwl-y += lowlevel.o
diff --git a/arch/arm/boards/turris-omnia/board.c b/arch/arm/boards/turris-omnia/board.c
new file mode 100644
index 0000000000..40a8c178f1
--- /dev/null
+++ b/arch/arm/boards/turris-omnia/board.c
@@ -0,0 +1 @@
+/* empty */
diff --git a/arch/arm/boards/turris-omnia/kwbimage.cfg b/arch/arm/boards/turris-omnia/kwbimage.cfg
new file mode 100644
index 0000000000..789ee5df17
--- /dev/null
+++ b/arch/arm/boards/turris-omnia/kwbimage.cfg
@@ -0,0 +1,7 @@
+VERSION 1
+BOOT_FROM spi
+DESTADDR 00800000
+EXECADDR 00800000
+NAND_BLKSZ 00000000
+NAND_BADBLK_LOCATION 00
+BINARY binary.0 0000005b 00000068
diff --git a/arch/arm/boards/turris-omnia/lowlevel.c b/arch/arm/boards/turris-omnia/lowlevel.c
new file mode 100644
index 0000000000..3f20908ff7
--- /dev/null
+++ b/arch/arm/boards/turris-omnia/lowlevel.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2017 Pengutronix, Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program 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.
+ */
+
+#include <common.h>
+#include <asm/barebox-arm.h>
+#include <asm/barebox-arm-head.h>
+#include <mach/lowlevel.h>
+
+#include <asm/io.h>
+
+extern char __dtb_armada_385_turris_omnia_bb_start[];
+
+ENTRY_FUNCTION(start_turris_omnia, r0, r1, r2)
+{
+	void *fdt;
+
+	arm_cpu_lowlevel_init();
+
+	fdt = __dtb_armada_385_turris_omnia_bb_start -
+		get_runtime_offset();
+
+	armada_370_xp_barebox_entry(fdt);
+}
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 806d386001..d8abe452b4 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -83,6 +83,7 @@ pbl-dtb-$(CONFIG_MACH_TQMA6X) += imx6dl-mba6x.dtb.o imx6q-mba6x.dtb.o
 pbl-dtb-$(CONFIG_MACH_TX25) += imx25-karo-tx25.dtb.o
 pbl-dtb-$(CONFIG_MACH_TX6X) += imx6dl-tx6u.dtb.o
 pbl-dtb-$(CONFIG_MACH_TX6X) += imx6q-tx6q.dtb.o
+pbl-dtb-$(CONFIG_MACH_TURRIS_OMNIA) += armada-385-turris-omnia-bb.dtb.o
 pbl-dtb-$(CONFIG_MACH_UDOO) += imx6q-udoo.dtb.o
 pbl-dtb-$(CONFIG_MACH_USI_TOPKICK) += kirkwood-topkick-bb.dtb.o
 pbl-dtb-$(CONFIG_MACH_VARISCITE_MX6) += imx6q-var-custom.dtb.o
diff --git a/arch/arm/dts/armada-385-turris-omnia-bb.dts b/arch/arm/dts/armada-385-turris-omnia-bb.dts
new file mode 100644
index 0000000000..53bef01af7
--- /dev/null
+++ b/arch/arm/dts/armada-385-turris-omnia-bb.dts
@@ -0,0 +1,7 @@
+#include "arm/armada-385-turris-omnia.dts"
+
+/ {
+	chosen {
+		stdout-path = "/soc/internal-regs/serial@12000";
+	};
+};
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index 827967eea3..ad97e83701 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -69,6 +69,16 @@ config MACH_PLATHOME_OPENBLOCKS_AX3
 	select ARCH_ARMADA_XP
 
 #
+# Armada 38x SoC boards
+#
+
+comment "Armada 38x based boards"
+
+config MACH_TURRIS_OMNIA
+	bool "Turris Omnia"
+	select ARCH_ARMADA_38X
+
+#
 # Dove 88AP510 SoC boards
 #