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-rw-r--r--arch/arm/mach-mvebu/board-v7.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/board-v7.c b/arch/arm/mach-mvebu/board-v7.c
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index 000000000000..304f5f8b39f6
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+++ b/arch/arm/mach-mvebu/board-v7.c
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+/*
+ * Device Tree support for Armada 370 and XP platforms.
+ *
+ * Copyright (C) 2012 Marvell
+ *
+ * Lior Amsalem <alior@marvell.com>
+ * Gregory CLEMENT <gregory.clement@free-electrons.com>
+ * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/clk-provider.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/io.h>
+#include <linux/clocksource.h>
+#include <linux/dma-mapping.h>
+#include <linux/mbus.h>
+#include <linux/slab.h>
+#include <asm/hardware/cache-l2x0.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include "armada-370-xp.h"
+#include "common.h"
+#include "coherency.h"
+#include "mvebu-soc-id.h"
+
+static void __init mvebu_timer_and_clk_init(void)
+{
+ of_clk_init(NULL);
+ clocksource_of_init();
+ coherency_init();
+ BUG_ON(mvebu_mbus_dt_init());
+#ifdef CONFIG_CACHE_L2X0
+ l2x0_of_init(0, ~0UL);
+#endif
+}
+
+static void __init i2c_quirk(void)
+{
+ struct device_node *np;
+ u32 dev, rev;
+
+ /*
+ * Only revisons more recent than A0 support the offload
+ * mechanism. We can exit only if we are sure that we can
+ * get the SoC revision and it is more recent than A0.
+ */
+ if (mvebu_get_soc_id(&rev, &dev) == 0 && dev > MV78XX0_A0_REV)
+ return;
+
+ for_each_compatible_node(np, NULL, "marvell,mv78230-i2c") {
+ struct property *new_compat;
+
+ new_compat = kzalloc(sizeof(*new_compat), GFP_KERNEL);
+
+ new_compat->name = kstrdup("compatible", GFP_KERNEL);
+ new_compat->length = sizeof("marvell,mv78230-a0-i2c");
+ new_compat->value = kstrdup("marvell,mv78230-a0-i2c",
+ GFP_KERNEL);
+
+ of_update_property(np, new_compat);
+ }
+ return;
+}
+
+static void __init mvebu_dt_init(void)
+{
+ if (of_machine_is_compatible("plathome,openblocks-ax3-4"))
+ i2c_quirk();
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char * const armada_370_xp_dt_compat[] = {
+ "marvell,armada-370-xp",
+ NULL,
+};
+
+DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)")
+ .smp = smp_ops(armada_xp_smp_ops),
+ .init_machine = mvebu_dt_init,
+ .init_time = mvebu_timer_and_clk_init,
+ .restart = mvebu_restart,
+ .dt_compat = armada_370_xp_dt_compat,
+MACHINE_END