projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 9ae6f740 TP |
1 | /* |
| 2 | * Device Tree support for Armada 370 and XP platforms. | |
| 3 | * | |
| 4 | * Copyright (C) 2012 Marvell | |
| 5 | * | |
| 6 | * Lior Amsalem <alior@marvell.com> | |
| 7 | * Gregory CLEMENT <gregory.clement@free-electrons.com> | |
| 8 | * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | |
| 9 | * | |
| 10 | * This file is licensed under the terms of the GNU General Public | |
| 11 | * License version 2. This program is licensed "as is" without any | |
| 12 | * warranty of any kind, whether express or implied. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/kernel.h> | |
| 16 | #include <linux/init.h> | |
| 17 | #include <linux/of_platform.h> | |
| 18 | #include <linux/io.h> | |
| 19 | #include <linux/time-armada-370-xp.h> | |
| 9d202783 | 20 | #include <linux/clk/mvebu.h> |
| 53d2f889 | 21 | #include <linux/dma-mapping.h> |
| 9ae6f740 TP |
22 | #include <asm/mach/arch.h> |
| 23 | #include <asm/mach/map.h> | |
| 24 | #include <asm/mach/time.h> | |
| 6eb5be34 | 25 | #include "armada-370-xp.h" |
| 9ae6f740 | 26 | #include "common.h" |
| 45f5984a | 27 | #include "coherency.h" |
| 9ae6f740 TP |
28 | |
| 29 | static struct map_desc armada_370_xp_io_desc[] __initdata = { | |
| 30 | { | |
| 9758e70a | 31 | .virtual = (unsigned long) ARMADA_370_XP_REGS_VIRT_BASE, |
| 9ae6f740 TP |
32 | .pfn = __phys_to_pfn(ARMADA_370_XP_REGS_PHYS_BASE), |
| 33 | .length = ARMADA_370_XP_REGS_SIZE, | |
| 34 | .type = MT_DEVICE, | |
| 35 | }, | |
| 36 | }; | |
| 37 | ||
| 38 | void __init armada_370_xp_map_io(void) | |
| 39 | { | |
| 40 | iotable_init(armada_370_xp_io_desc, ARRAY_SIZE(armada_370_xp_io_desc)); | |
| 41 | } | |
| 42 | ||
| 9d202783 GC |
43 | void __init armada_370_xp_timer_and_clk_init(void) |
| 44 | { | |
| 45 | mvebu_clocks_init(); | |
| 46 | armada_370_xp_timer_init(); | |
| 47 | } | |
| 48 | ||
| 53d2f889 GC |
49 | void __init armada_370_xp_init_early(void) |
| 50 | { | |
| 51 | /* | |
| 52 | * Some Armada 370/XP devices allocate their coherent buffers | |
| 53 | * from atomic context. Increase size of atomic coherent pool | |
| 54 | * to make sure such the allocations won't fail. | |
| 55 | */ | |
| 56 | init_dma_coherent_pool_size(SZ_1M); | |
| 57 | } | |
| 58 | ||
| 9ae6f740 TP |
59 | static void __init armada_370_xp_dt_init(void) |
| 60 | { | |
| 61 | of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); | |
| 45f5984a | 62 | coherency_init(); |
| 9ae6f740 TP |
63 | } |
| 64 | ||
| 61505e11 TP |
65 | static const char * const armada_370_xp_dt_compat[] = { |
| 66 | "marvell,armada-370-xp", | |
| 9ae6f740 TP |
67 | NULL, |
| 68 | }; | |
| 69 | ||
| 8c4340fc | 70 | DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)") |
| 45f5984a | 71 | .smp = smp_ops(armada_xp_smp_ops), |
| 9ae6f740 TP |
72 | .init_machine = armada_370_xp_dt_init, |
| 73 | .map_io = armada_370_xp_map_io, | |
| 53d2f889 | 74 | .init_early = armada_370_xp_init_early, |
| 9ae6f740 TP |
75 | .init_irq = armada_370_xp_init_irq, |
| 76 | .handle_irq = armada_370_xp_handle_irq, | |
| 6bb27d73 | 77 | .init_time = armada_370_xp_timer_and_clk_init, |
| 9ae6f740 | 78 | .restart = mvebu_restart, |
| 61505e11 | 79 | .dt_compat = armada_370_xp_dt_compat, |
| 9ae6f740 | 80 | MACHINE_END |