Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 1 | /* |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 2 | * SAMSUNG EXYNOS Flattened Device Tree enabled machine |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 3 | * |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 4 | * Copyright (c) 2010-2014 Samsung Electronics Co., Ltd. |
| 5 | * http://www.samsung.com |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 12 | #include <linux/init.h> |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 13 | #include <linux/io.h> |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 14 | #include <linux/kernel.h> |
Tushar Behera | 334a1c7 | 2014-02-14 10:32:45 +0900 | [diff] [blame] | 15 | #include <linux/serial_s3c.h> |
Arnd Bergmann | 237c78b | 2012-01-07 12:30:20 +0000 | [diff] [blame] | 16 | #include <linux/of.h> |
Thomas Abraham | e873a47 | 2012-05-15 16:25:23 +0900 | [diff] [blame] | 17 | #include <linux/of_address.h> |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 18 | #include <linux/of_fdt.h> |
| 19 | #include <linux/of_platform.h> |
Bartlomiej Zolnierkiewicz | 35baa33 | 2013-08-30 12:15:04 +0200 | [diff] [blame] | 20 | #include <linux/platform_device.h> |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 21 | #include <linux/pm_domain.h> |
Pankaj Dubey | fce9e5b | 2014-07-11 08:08:29 +0900 | [diff] [blame] | 22 | #include <linux/irqchip.h> |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 23 | |
Amit Daniel Kachhap | b756a50 | 2012-03-08 02:07:41 -0800 | [diff] [blame] | 24 | #include <asm/cacheflush.h> |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 25 | #include <asm/hardware/cache-l2x0.h> |
| 26 | #include <asm/mach/arch.h> |
| 27 | #include <asm/mach/map.h> |
| 28 | #include <asm/memory.h> |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 29 | |
Pankaj Dubey | 32b0aa9 | 2015-01-09 01:14:23 +0900 | [diff] [blame] | 30 | #include <mach/map.h> |
| 31 | |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 32 | #include "common.h" |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 33 | #include "mfc.h" |
Kukjin Kim | 65c9a85 | 2013-12-19 04:06:56 +0900 | [diff] [blame] | 34 | #include "regs-pmu.h" |
| 35 | |
Pankaj Dubey | fce9e5b | 2014-07-11 08:08:29 +0900 | [diff] [blame] | 36 | void __iomem *pmu_base_addr; |
Amit Daniel Kachhap | 6cdeddc | 2012-03-08 02:09:12 -0800 | [diff] [blame] | 37 | |
Kukjin Kim | 94c7ca7 | 2012-02-11 22:15:45 +0900 | [diff] [blame] | 38 | static struct map_desc exynos4_iodesc[] __initdata = { |
| 39 | { |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 40 | .virtual = (unsigned long)S5P_VA_SROMC, |
| 41 | .pfn = __phys_to_pfn(EXYNOS4_PA_SROMC), |
| 42 | .length = SZ_4K, |
| 43 | .type = MT_DEVICE, |
| 44 | }, { |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 45 | .virtual = (unsigned long)S5P_VA_CMU, |
| 46 | .pfn = __phys_to_pfn(EXYNOS4_PA_CMU), |
| 47 | .length = SZ_128K, |
| 48 | .type = MT_DEVICE, |
| 49 | }, { |
| 50 | .virtual = (unsigned long)S5P_VA_COREPERI_BASE, |
| 51 | .pfn = __phys_to_pfn(EXYNOS4_PA_COREPERI), |
| 52 | .length = SZ_8K, |
| 53 | .type = MT_DEVICE, |
| 54 | }, { |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 55 | .virtual = (unsigned long)S5P_VA_DMC0, |
| 56 | .pfn = __phys_to_pfn(EXYNOS4_PA_DMC0), |
MyungJoo Ham | 2bde0b0 | 2011-12-01 15:12:30 +0900 | [diff] [blame] | 57 | .length = SZ_64K, |
| 58 | .type = MT_DEVICE, |
| 59 | }, { |
| 60 | .virtual = (unsigned long)S5P_VA_DMC1, |
| 61 | .pfn = __phys_to_pfn(EXYNOS4_PA_DMC1), |
| 62 | .length = SZ_64K, |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 63 | .type = MT_DEVICE, |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 64 | }, |
| 65 | }; |
| 66 | |
Kukjin Kim | 94c7ca7 | 2012-02-11 22:15:45 +0900 | [diff] [blame] | 67 | static struct map_desc exynos5_iodesc[] __initdata = { |
| 68 | { |
Kukjin Kim | 94c7ca7 | 2012-02-11 22:15:45 +0900 | [diff] [blame] | 69 | .virtual = (unsigned long)S5P_VA_SROMC, |
| 70 | .pfn = __phys_to_pfn(EXYNOS5_PA_SROMC), |
| 71 | .length = SZ_4K, |
| 72 | .type = MT_DEVICE, |
| 73 | }, { |
Kukjin Kim | 94c7ca7 | 2012-02-11 22:15:45 +0900 | [diff] [blame] | 74 | .virtual = (unsigned long)S5P_VA_CMU, |
| 75 | .pfn = __phys_to_pfn(EXYNOS5_PA_CMU), |
| 76 | .length = 144 * SZ_1K, |
| 77 | .type = MT_DEVICE, |
Kukjin Kim | 2edb36c | 2012-11-15 15:48:56 +0900 | [diff] [blame] | 78 | }, |
| 79 | }; |
| 80 | |
Bartlomiej Zolnierkiewicz | 35baa33 | 2013-08-30 12:15:04 +0200 | [diff] [blame] | 81 | static struct platform_device exynos_cpuidle = { |
Daniel Lezcano | 277f504 | 2014-05-09 06:56:29 +0900 | [diff] [blame] | 82 | .name = "exynos_cpuidle", |
Bartlomiej Zolnierkiewicz | 658cff0 | 2014-09-24 02:18:27 +0900 | [diff] [blame] | 83 | #ifdef CONFIG_ARM_EXYNOS_CPUIDLE |
Daniel Lezcano | 277f504 | 2014-05-09 06:56:29 +0900 | [diff] [blame] | 84 | .dev.platform_data = exynos_enter_aftr, |
Bartlomiej Zolnierkiewicz | 658cff0 | 2014-09-24 02:18:27 +0900 | [diff] [blame] | 85 | #endif |
Daniel Lezcano | 277f504 | 2014-05-09 06:56:29 +0900 | [diff] [blame] | 86 | .id = -1, |
Bartlomiej Zolnierkiewicz | 35baa33 | 2013-08-30 12:15:04 +0200 | [diff] [blame] | 87 | }; |
| 88 | |
Olof Johansson | 1754c42 | 2014-06-02 21:47:46 -0700 | [diff] [blame] | 89 | void __iomem *sysram_base_addr; |
| 90 | void __iomem *sysram_ns_base_addr; |
| 91 | |
| 92 | void __init exynos_sysram_init(void) |
| 93 | { |
| 94 | struct device_node *node; |
| 95 | |
| 96 | for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram") { |
| 97 | if (!of_device_is_available(node)) |
| 98 | continue; |
| 99 | sysram_base_addr = of_iomap(node, 0); |
| 100 | break; |
| 101 | } |
| 102 | |
| 103 | for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram-ns") { |
| 104 | if (!of_device_is_available(node)) |
| 105 | continue; |
| 106 | sysram_ns_base_addr = of_iomap(node, 0); |
| 107 | break; |
| 108 | } |
| 109 | } |
| 110 | |
Pankaj Dubey | 5e299f6 | 2014-07-08 07:51:11 +0900 | [diff] [blame] | 111 | static void __init exynos_init_late(void) |
Shawn Guo | bb13fab | 2012-04-26 10:35:40 +0800 | [diff] [blame] | 112 | { |
Kukjin Kim | 2edb36c | 2012-11-15 15:48:56 +0900 | [diff] [blame] | 113 | if (of_machine_is_compatible("samsung,exynos5440")) |
| 114 | /* to be supported later */ |
| 115 | return; |
| 116 | |
Tomasz Figa | 559ba23 | 2014-03-18 07:28:22 +0900 | [diff] [blame] | 117 | exynos_pm_init(); |
Shawn Guo | bb13fab | 2012-04-26 10:35:40 +0800 | [diff] [blame] | 118 | } |
| 119 | |
Arnd Bergmann | 564d06b | 2013-06-19 01:36:56 +0900 | [diff] [blame] | 120 | static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname, |
Thomas Abraham | f5f83c7 | 2013-04-23 22:46:53 +0900 | [diff] [blame] | 121 | int depth, void *data) |
| 122 | { |
| 123 | struct map_desc iodesc; |
Sachin Kamat | 3eb9364 | 2014-05-05 14:56:48 +0530 | [diff] [blame] | 124 | const __be32 *reg; |
Rob Herring | 9d0c4df | 2014-04-01 23:49:03 -0500 | [diff] [blame] | 125 | int len; |
Thomas Abraham | f5f83c7 | 2013-04-23 22:46:53 +0900 | [diff] [blame] | 126 | |
| 127 | if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid") && |
| 128 | !of_flat_dt_is_compatible(node, "samsung,exynos5440-clock")) |
| 129 | return 0; |
| 130 | |
| 131 | reg = of_get_flat_dt_prop(node, "reg", &len); |
| 132 | if (reg == NULL || len != (sizeof(unsigned long) * 2)) |
| 133 | return 0; |
| 134 | |
| 135 | iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); |
| 136 | iodesc.length = be32_to_cpu(reg[1]) - 1; |
| 137 | iodesc.virtual = (unsigned long)S5P_VA_CHIPID; |
| 138 | iodesc.type = MT_DEVICE; |
| 139 | iotable_init(&iodesc, 1); |
| 140 | return 1; |
| 141 | } |
Thomas Abraham | f5f83c7 | 2013-04-23 22:46:53 +0900 | [diff] [blame] | 142 | |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 143 | /* |
| 144 | * exynos_map_io |
| 145 | * |
| 146 | * register the standard cpu IO areas |
| 147 | */ |
Sachin Kamat | 6eb8466 | 2014-03-21 02:09:39 +0900 | [diff] [blame] | 148 | static void __init exynos_map_io(void) |
| 149 | { |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 150 | if (soc_is_exynos4()) |
Sachin Kamat | 6eb8466 | 2014-03-21 02:09:39 +0900 | [diff] [blame] | 151 | iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc)); |
| 152 | |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 153 | if (soc_is_exynos5()) |
Sachin Kamat | 6eb8466 | 2014-03-21 02:09:39 +0900 | [diff] [blame] | 154 | iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc)); |
Sachin Kamat | 6eb8466 | 2014-03-21 02:09:39 +0900 | [diff] [blame] | 155 | } |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 156 | |
Pankaj Dubey | 5e299f6 | 2014-07-08 07:51:11 +0900 | [diff] [blame] | 157 | static void __init exynos_init_io(void) |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 158 | { |
Doug Anderson | 9c1fcdc | 2013-06-05 13:56:33 -0700 | [diff] [blame] | 159 | debug_ll_io_init(); |
| 160 | |
Tomasz Figa | 04fae59 | 2013-06-15 09:13:25 +0900 | [diff] [blame] | 161 | of_scan_flat_dt(exynos_fdt_map_chipid, NULL); |
Kukjin Kim | 2edb36c | 2012-11-15 15:48:56 +0900 | [diff] [blame] | 162 | |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 163 | /* detect cpu id and rev. */ |
| 164 | s5p_init_cpu(S5P_VA_CHIPID); |
| 165 | |
Sachin Kamat | 6eb8466 | 2014-03-21 02:09:39 +0900 | [diff] [blame] | 166 | exynos_map_io(); |
Kukjin Kim | 94c7ca7 | 2012-02-11 22:15:45 +0900 | [diff] [blame] | 167 | } |
| 168 | |
Marc Zyngier | 8b283c0 | 2015-03-11 15:44:52 +0000 | [diff] [blame] | 169 | /* |
Krzysztof Kozlowski | 6f02497 | 2015-03-11 11:13:57 +0100 | [diff] [blame] | 170 | * Set or clear the USE_DELAYED_RESET_ASSERTION option. Used by smp code |
| 171 | * and suspend. |
| 172 | * |
| 173 | * This is necessary only on Exynos4 SoCs. When system is running |
| 174 | * USE_DELAYED_RESET_ASSERTION should be set so the ARM CLK clock down |
| 175 | * feature could properly detect global idle state when secondary CPU is |
| 176 | * powered down. |
| 177 | * |
| 178 | * However this should not be set when such system is going into suspend. |
| 179 | */ |
| 180 | void exynos_set_delayed_reset_assertion(bool enable) |
| 181 | { |
Krzysztof Kozlowski | c1f0ecf | 2015-05-14 11:43:59 +0900 | [diff] [blame] | 182 | if (of_machine_is_compatible("samsung,exynos4")) { |
Krzysztof Kozlowski | 6f02497 | 2015-03-11 11:13:57 +0100 | [diff] [blame] | 183 | unsigned int tmp, core_id; |
| 184 | |
| 185 | for (core_id = 0; core_id < num_possible_cpus(); core_id++) { |
| 186 | tmp = pmu_raw_readl(EXYNOS_ARM_CORE_OPTION(core_id)); |
| 187 | if (enable) |
| 188 | tmp |= S5P_USE_DELAYED_RESET_ASSERTION; |
| 189 | else |
| 190 | tmp &= ~(S5P_USE_DELAYED_RESET_ASSERTION); |
| 191 | pmu_raw_writel(tmp, EXYNOS_ARM_CORE_OPTION(core_id)); |
| 192 | } |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | /* |
Marc Zyngier | 8b283c0 | 2015-03-11 15:44:52 +0000 | [diff] [blame] | 197 | * Apparently, these SoCs are not able to wake-up from suspend using |
| 198 | * the PMU. Too bad. Should they suddenly become capable of such a |
| 199 | * feat, the matches below should be moved to suspend.c. |
| 200 | */ |
Pankaj Dubey | fce9e5b | 2014-07-11 08:08:29 +0900 | [diff] [blame] | 201 | static const struct of_device_id exynos_dt_pmu_match[] = { |
Vikas Sajjan | 22ead0d | 2014-07-29 06:17:39 +0900 | [diff] [blame] | 202 | { .compatible = "samsung,exynos5260-pmu" }, |
Andreas Faerber | 98504de | 2014-07-29 06:10:40 +0900 | [diff] [blame] | 203 | { .compatible = "samsung,exynos5410-pmu" }, |
Pankaj Dubey | fce9e5b | 2014-07-11 08:08:29 +0900 | [diff] [blame] | 204 | { /*sentinel*/ }, |
| 205 | }; |
| 206 | |
| 207 | static void exynos_map_pmu(void) |
| 208 | { |
| 209 | struct device_node *np; |
| 210 | |
| 211 | np = of_find_matching_node(NULL, exynos_dt_pmu_match); |
| 212 | if (np) |
| 213 | pmu_base_addr = of_iomap(np, 0); |
Pankaj Dubey | fce9e5b | 2014-07-11 08:08:29 +0900 | [diff] [blame] | 214 | } |
| 215 | |
| 216 | static void __init exynos_init_irq(void) |
| 217 | { |
| 218 | irqchip_init(); |
| 219 | /* |
| 220 | * Since platsmp.c needs pmu base address by the time |
| 221 | * DT is not unflatten so we can't use DT APIs before |
| 222 | * init_irq |
| 223 | */ |
| 224 | exynos_map_pmu(); |
| 225 | } |
| 226 | |
Thomas Abraham | 131323c | 2015-04-03 18:43:48 +0200 | [diff] [blame] | 227 | static const struct of_device_id exynos_cpufreq_matches[] = { |
Chanwoo Choi | 58c036a | 2015-07-24 12:58:41 +0900 | [diff] [blame] | 228 | { .compatible = "samsung,exynos3250", .data = "cpufreq-dt" }, |
Thomas Abraham | 131323c | 2015-04-03 18:43:48 +0200 | [diff] [blame] | 229 | { .compatible = "samsung,exynos4210", .data = "cpufreq-dt" }, |
Bartlomiej Zolnierkiewicz | bdd2648 | 2015-08-12 07:41:11 +0900 | [diff] [blame] | 230 | { .compatible = "samsung,exynos4212", .data = "cpufreq-dt" }, |
| 231 | { .compatible = "samsung,exynos4412", .data = "cpufreq-dt" }, |
Thomas Abraham | c913f02 | 2015-07-01 15:10:37 +0200 | [diff] [blame] | 232 | { .compatible = "samsung,exynos5250", .data = "cpufreq-dt" }, |
Thomas Abraham | 131323c | 2015-04-03 18:43:48 +0200 | [diff] [blame] | 233 | { /* sentinel */ } |
| 234 | }; |
| 235 | |
| 236 | static void __init exynos_cpufreq_init(void) |
| 237 | { |
| 238 | struct device_node *root = of_find_node_by_path("/"); |
| 239 | const struct of_device_id *match; |
| 240 | |
| 241 | match = of_match_node(exynos_cpufreq_matches, root); |
| 242 | if (!match) { |
| 243 | platform_device_register_simple("exynos-cpufreq", -1, NULL, 0); |
| 244 | return; |
| 245 | } |
| 246 | |
| 247 | platform_device_register_simple(match->data, -1, NULL, 0); |
| 248 | } |
| 249 | |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 250 | static void __init exynos_dt_machine_init(void) |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 251 | { |
Olof Johansson | 1754c42 | 2014-06-02 21:47:46 -0700 | [diff] [blame] | 252 | /* |
| 253 | * This is called from smp_prepare_cpus if we've built for SMP, but |
| 254 | * we still need to set it up for PM and firmware ops if not. |
| 255 | */ |
Abhilash Kesavan | 73ea6ec | 2014-07-05 06:09:18 +0900 | [diff] [blame] | 256 | if (!IS_ENABLED(CONFIG_SMP)) |
Olof Johansson | 1754c42 | 2014-06-02 21:47:46 -0700 | [diff] [blame] | 257 | exynos_sysram_init(); |
| 258 | |
Bartlomiej Zolnierkiewicz | cfdda35 | 2015-03-18 03:26:11 +0900 | [diff] [blame] | 259 | #if defined(CONFIG_SMP) && defined(CONFIG_ARM_EXYNOS_CPUIDLE) |
Bartlomiej Zolnierkiewicz | af99711 | 2015-03-18 14:09:57 +0100 | [diff] [blame] | 260 | if (of_machine_is_compatible("samsung,exynos4210") || |
| 261 | of_machine_is_compatible("samsung,exynos3250")) |
Bartlomiej Zolnierkiewicz | 712eddf | 2015-01-24 14:05:50 +0900 | [diff] [blame] | 262 | exynos_cpuidle.dev.platform_data = &cpuidle_coupled_exynos_data; |
| 263 | #endif |
Pankaj Dubey | 6887d9e | 2014-07-19 03:48:35 +0900 | [diff] [blame] | 264 | if (of_machine_is_compatible("samsung,exynos4210") || |
Bartlomiej Zolnierkiewicz | 42d5dc3 | 2014-09-25 17:59:41 +0900 | [diff] [blame] | 265 | of_machine_is_compatible("samsung,exynos4212") || |
| 266 | (of_machine_is_compatible("samsung,exynos4412") && |
| 267 | of_machine_is_compatible("samsung,trats2")) || |
Bartlomiej Zolnierkiewicz | bd0d888 | 2015-03-27 02:35:52 +0900 | [diff] [blame] | 268 | of_machine_is_compatible("samsung,exynos3250") || |
Bartlomiej Zolnierkiewicz | 42d5dc3 | 2014-09-25 17:59:41 +0900 | [diff] [blame] | 269 | of_machine_is_compatible("samsung,exynos5250")) |
Pankaj Dubey | 6887d9e | 2014-07-19 03:48:35 +0900 | [diff] [blame] | 270 | platform_device_register(&exynos_cpuidle); |
Chander Kashyap | b5a296c | 2014-07-05 06:24:35 +0900 | [diff] [blame] | 271 | |
Thomas Abraham | 131323c | 2015-04-03 18:43:48 +0200 | [diff] [blame] | 272 | exynos_cpufreq_init(); |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 273 | |
| 274 | of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); |
Kukjin Kim | cc511b8 | 2011-12-27 08:18:36 +0100 | [diff] [blame] | 275 | } |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 276 | |
Uwe Kleine-König | 543c504 | 2015-02-18 21:01:45 +0100 | [diff] [blame] | 277 | static char const *const exynos_dt_compat[] __initconst = { |
Chanwoo Choi | 940bc58 | 2014-05-26 04:12:26 +0900 | [diff] [blame] | 278 | "samsung,exynos3", |
| 279 | "samsung,exynos3250", |
Sachin Kamat | 4868123 | 2014-03-21 02:14:59 +0900 | [diff] [blame] | 280 | "samsung,exynos4", |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 281 | "samsung,exynos4210", |
| 282 | "samsung,exynos4212", |
| 283 | "samsung,exynos4412", |
Chanwoo Choi | c0adae9 | 2014-11-07 08:20:09 +0900 | [diff] [blame] | 284 | "samsung,exynos4415", |
Sachin Kamat | 4868123 | 2014-03-21 02:14:59 +0900 | [diff] [blame] | 285 | "samsung,exynos5", |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 286 | "samsung,exynos5250", |
Pankaj Dubey | ed08f10 | 2014-05-26 04:28:17 +0900 | [diff] [blame] | 287 | "samsung,exynos5260", |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 288 | "samsung,exynos5420", |
| 289 | "samsung,exynos5440", |
| 290 | NULL |
| 291 | }; |
| 292 | |
| 293 | static void __init exynos_reserve(void) |
| 294 | { |
| 295 | #ifdef CONFIG_S5P_DEV_MFC |
| 296 | int i; |
| 297 | char *mfc_mem[] = { |
| 298 | "samsung,mfc-v5", |
| 299 | "samsung,mfc-v6", |
| 300 | "samsung,mfc-v7", |
Sjoerd Simons | adacba5 | 2015-01-12 17:46:36 +0900 | [diff] [blame] | 301 | "samsung,mfc-v8", |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 302 | }; |
| 303 | |
| 304 | for (i = 0; i < ARRAY_SIZE(mfc_mem); i++) |
| 305 | if (of_scan_flat_dt(s5p_fdt_alloc_mfc_mem, mfc_mem[i])) |
| 306 | break; |
| 307 | #endif |
| 308 | } |
| 309 | |
Laura Abbott | 5a12a597 | 2014-07-15 10:03:36 -0700 | [diff] [blame] | 310 | static void __init exynos_dt_fixup(void) |
| 311 | { |
| 312 | /* |
| 313 | * Some versions of uboot pass garbage entries in the memory node, |
| 314 | * use the old CONFIG_ARM_NR_BANKS |
| 315 | */ |
| 316 | of_fdt_limit_memory(8); |
| 317 | } |
| 318 | |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 319 | DT_MACHINE_START(EXYNOS_DT, "SAMSUNG EXYNOS (Flattened Device Tree)") |
| 320 | /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */ |
| 321 | /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */ |
Russell King | 15b0bc4 | 2014-04-28 15:54:08 +0100 | [diff] [blame] | 322 | .l2c_aux_val = 0x3c400001, |
| 323 | .l2c_aux_mask = 0xc20fffff, |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 324 | .smp = smp_ops(exynos_smp_ops), |
| 325 | .map_io = exynos_init_io, |
| 326 | .init_early = exynos_firmware_init, |
Pankaj Dubey | fce9e5b | 2014-07-11 08:08:29 +0900 | [diff] [blame] | 327 | .init_irq = exynos_init_irq, |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 328 | .init_machine = exynos_dt_machine_init, |
| 329 | .init_late = exynos_init_late, |
| 330 | .dt_compat = exynos_dt_compat, |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 331 | .reserve = exynos_reserve, |
Laura Abbott | 5a12a597 | 2014-07-15 10:03:36 -0700 | [diff] [blame] | 332 | .dt_fixup = exynos_dt_fixup, |
Sachin Kamat | cbf08b9 | 2014-03-21 02:14:30 +0900 | [diff] [blame] | 333 | MACHINE_END |