diff options
Diffstat (limited to 'arch/arm/mach-mvebu/board-v7.c')
-rw-r--r-- | arch/arm/mach-mvebu/board-v7.c | 91 |
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 new file mode 100644 index 000000000000..304f5f8b39f6 --- /dev/null +++ b/arch/arm/mach-mvebu/board-v7.c @@ -0,0 +1,91 @@ +/* + * 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 |