projects / deliverable / linux.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> | |
| 9cbbc515 | 17 | #include <linux/clk-provider.h> |
| d834d26a | 18 | #include <linux/of_address.h> |
| 9ae6f740 TP |
19 | #include <linux/of_platform.h> |
| 20 | #include <linux/io.h> | |
| 21 | #include <linux/time-armada-370-xp.h> | |
| 53d2f889 | 22 | #include <linux/dma-mapping.h> |
| 87e1bed4 | 23 | #include <linux/mbus.h> |
| e33369cb | 24 | #include <asm/hardware/cache-l2x0.h> |
| 9ae6f740 TP |
25 | #include <asm/mach/arch.h> |
| 26 | #include <asm/mach/map.h> | |
| 27 | #include <asm/mach/time.h> | |
| 6eb5be34 | 28 | #include "armada-370-xp.h" |
| 9ae6f740 | 29 | #include "common.h" |
| 45f5984a | 30 | #include "coherency.h" |
| 9ae6f740 | 31 | |
| c589f9b4 | 32 | static void __init armada_370_xp_map_io(void) |
| 9ae6f740 | 33 | { |
| 488275be | 34 | debug_ll_io_init(); |
| 9ae6f740 TP |
35 | } |
| 36 | ||
| d834d26a TP |
37 | /* |
| 38 | * This initialization will be replaced by a DT-based | |
| 39 | * initialization once the mvebu-mbus driver gains DT support. | |
| 40 | */ | |
| 9d202783 | 41 | |
| d834d26a TP |
42 | #define ARMADA_370_XP_MBUS_WINS_OFFS 0x20000 |
| 43 | #define ARMADA_370_XP_MBUS_WINS_SIZE 0x100 | |
| 44 | #define ARMADA_370_XP_SDRAM_WINS_OFFS 0x20180 | |
| 45 | #define ARMADA_370_XP_SDRAM_WINS_SIZE 0x20 | |
| 46 | ||
| 47 | static void __init armada_370_xp_mbus_init(void) | |
| 53d2f889 | 48 | { |
| 87e1bed4 | 49 | char *mbus_soc_name; |
| d834d26a TP |
50 | struct device_node *dn; |
| 51 | const __be32 mbus_wins_offs = cpu_to_be32(ARMADA_370_XP_MBUS_WINS_OFFS); | |
| 52 | const __be32 sdram_wins_offs = cpu_to_be32(ARMADA_370_XP_SDRAM_WINS_OFFS); | |
| 87e1bed4 | 53 | |
| 87e1bed4 TP |
54 | if (of_machine_is_compatible("marvell,armada370")) |
| 55 | mbus_soc_name = "marvell,armada370-mbus"; | |
| 56 | else | |
| 57 | mbus_soc_name = "marvell,armadaxp-mbus"; | |
| 58 | ||
| d834d26a TP |
59 | dn = of_find_node_by_name(NULL, "internal-regs"); |
| 60 | BUG_ON(!dn); | |
| 61 | ||
| 87e1bed4 | 62 | mvebu_mbus_init(mbus_soc_name, |
| d834d26a | 63 | of_translate_address(dn, &mbus_wins_offs), |
| 87e1bed4 | 64 | ARMADA_370_XP_MBUS_WINS_SIZE, |
| d834d26a | 65 | of_translate_address(dn, &sdram_wins_offs), |
| 87e1bed4 | 66 | ARMADA_370_XP_SDRAM_WINS_SIZE); |
| d834d26a | 67 | } |
| 1bf25e78 | 68 | |
| d834d26a TP |
69 | static void __init armada_370_xp_timer_and_clk_init(void) |
| 70 | { | |
| 5ae13ef4 | 71 | of_clk_init(NULL); |
| d834d26a TP |
72 | armada_370_xp_timer_init(); |
| 73 | coherency_init(); | |
| 74 | armada_370_xp_mbus_init(); | |
| e33369cb TP |
75 | #ifdef CONFIG_CACHE_L2X0 |
| 76 | l2x0_of_init(0, ~0UL); | |
| 77 | #endif | |
| 53d2f889 GC |
78 | } |
| 79 | ||
| 9ae6f740 TP |
80 | static void __init armada_370_xp_dt_init(void) |
| 81 | { | |
| 82 | of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); | |
| 83 | } | |
| 84 | ||
| 61505e11 TP |
85 | static const char * const armada_370_xp_dt_compat[] = { |
| 86 | "marvell,armada-370-xp", | |
| 9ae6f740 TP |
87 | NULL, |
| 88 | }; | |
| 89 | ||
| 8c4340fc | 90 | DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)") |
| 45f5984a | 91 | .smp = smp_ops(armada_xp_smp_ops), |
| 9ae6f740 TP |
92 | .init_machine = armada_370_xp_dt_init, |
| 93 | .map_io = armada_370_xp_map_io, | |
| 6bb27d73 | 94 | .init_time = armada_370_xp_timer_and_clk_init, |
| 9ae6f740 | 95 | .restart = mvebu_restart, |
| 61505e11 | 96 | .dt_compat = armada_370_xp_dt_compat, |
| 9ae6f740 | 97 | MACHINE_END |