| /* |
| * 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/signal.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 armada_370_xp_map_io(void) |
| { |
| debug_ll_io_init(); |
| } |
| |
| static void __init armada_370_xp_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 armada_370_xp_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 = armada_370_xp_dt_init, |
| .map_io = armada_370_xp_map_io, |
| .init_time = armada_370_xp_timer_and_clk_init, |
| .restart = mvebu_restart, |
| .dt_compat = armada_370_xp_dt_compat, |
| MACHINE_END |