Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Emma Mobile EV2 processor support |
| 3 | * |
| 4 | * Copyright (C) 2012 Magnus Damm |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/init.h> |
| 21 | #include <linux/interrupt.h> |
| 22 | #include <linux/irq.h> |
| 23 | #include <linux/platform_device.h> |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 24 | #include <linux/platform_data/gpio-em.h> |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 25 | #include <linux/of_platform.h> |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 26 | #include <linux/delay.h> |
| 27 | #include <linux/input.h> |
| 28 | #include <linux/io.h> |
Rob Herring | 520f7bd | 2012-12-27 13:10:24 -0600 | [diff] [blame] | 29 | #include <linux/irqchip/arm-gic.h> |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 30 | #include <mach/hardware.h> |
| 31 | #include <mach/common.h> |
| 32 | #include <mach/emev2.h> |
| 33 | #include <mach/irqs.h> |
| 34 | #include <asm/mach-types.h> |
| 35 | #include <asm/mach/arch.h> |
| 36 | #include <asm/mach/map.h> |
| 37 | #include <asm/mach/time.h> |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 38 | |
Magnus Damm | bd5a875 | 2012-05-16 15:45:25 +0900 | [diff] [blame] | 39 | static struct map_desc emev2_io_desc[] __initdata = { |
| 40 | #ifdef CONFIG_SMP |
| 41 | /* 128K entity map for 0xe0100000 (SMU) */ |
| 42 | { |
| 43 | .virtual = 0xe0100000, |
| 44 | .pfn = __phys_to_pfn(0xe0100000), |
| 45 | .length = SZ_128K, |
| 46 | .type = MT_DEVICE |
| 47 | }, |
| 48 | /* 2M mapping for SCU + L2 controller */ |
| 49 | { |
| 50 | .virtual = 0xf0000000, |
| 51 | .pfn = __phys_to_pfn(0x1e000000), |
| 52 | .length = SZ_2M, |
| 53 | .type = MT_DEVICE |
| 54 | }, |
| 55 | #endif |
| 56 | }; |
| 57 | |
| 58 | void __init emev2_map_io(void) |
| 59 | { |
| 60 | iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc)); |
| 61 | } |
| 62 | |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 63 | /* UART */ |
| 64 | static struct resource uart0_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 65 | DEFINE_RES_MEM(0xe1020000, 0x38), |
| 66 | DEFINE_RES_IRQ(40), |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 67 | }; |
| 68 | |
| 69 | static struct resource uart1_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 70 | DEFINE_RES_MEM(0xe1030000, 0x38), |
| 71 | DEFINE_RES_IRQ(41), |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 72 | }; |
| 73 | |
| 74 | static struct resource uart2_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 75 | DEFINE_RES_MEM(0xe1040000, 0x38), |
| 76 | DEFINE_RES_IRQ(42), |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 77 | }; |
| 78 | |
| 79 | static struct resource uart3_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 80 | DEFINE_RES_MEM(0xe1050000, 0x38), |
| 81 | DEFINE_RES_IRQ(43), |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 82 | }; |
| 83 | |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 84 | #define emev2_register_uart(idx) \ |
| 85 | platform_device_register_simple("serial8250-em", idx, \ |
| 86 | uart##idx##_resources, \ |
| 87 | ARRAY_SIZE(uart##idx##_resources)) |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 88 | |
| 89 | /* STI */ |
| 90 | static struct resource sti_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 91 | DEFINE_RES_MEM(0xe0180000, 0x54), |
| 92 | DEFINE_RES_IRQ(157), |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 93 | }; |
| 94 | |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 95 | #define emev2_register_sti() \ |
| 96 | platform_device_register_simple("em_sti", 0, \ |
| 97 | sti_resources, \ |
| 98 | ARRAY_SIZE(sti_resources)) |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 99 | |
| 100 | /* GIO */ |
| 101 | static struct gpio_em_config gio0_config = { |
| 102 | .gpio_base = 0, |
| 103 | .irq_base = EMEV2_GPIO_IRQ(0), |
| 104 | .number_of_pins = 32, |
| 105 | }; |
| 106 | |
| 107 | static struct resource gio0_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 108 | DEFINE_RES_MEM(0xe0050000, 0x2c), |
| 109 | DEFINE_RES_MEM(0xe0050040, 0x20), |
| 110 | DEFINE_RES_IRQ(99), |
| 111 | DEFINE_RES_IRQ(100), |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 112 | }; |
| 113 | |
| 114 | static struct gpio_em_config gio1_config = { |
| 115 | .gpio_base = 32, |
| 116 | .irq_base = EMEV2_GPIO_IRQ(32), |
| 117 | .number_of_pins = 32, |
| 118 | }; |
| 119 | |
| 120 | static struct resource gio1_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 121 | DEFINE_RES_MEM(0xe0050080, 0x2c), |
| 122 | DEFINE_RES_MEM(0xe00500c0, 0x20), |
| 123 | DEFINE_RES_IRQ(101), |
| 124 | DEFINE_RES_IRQ(102), |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 125 | }; |
| 126 | |
| 127 | static struct gpio_em_config gio2_config = { |
| 128 | .gpio_base = 64, |
| 129 | .irq_base = EMEV2_GPIO_IRQ(64), |
| 130 | .number_of_pins = 32, |
| 131 | }; |
| 132 | |
| 133 | static struct resource gio2_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 134 | DEFINE_RES_MEM(0xe0050100, 0x2c), |
| 135 | DEFINE_RES_MEM(0xe0050140, 0x20), |
| 136 | DEFINE_RES_IRQ(103), |
| 137 | DEFINE_RES_IRQ(104), |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 138 | }; |
| 139 | |
| 140 | static struct gpio_em_config gio3_config = { |
| 141 | .gpio_base = 96, |
| 142 | .irq_base = EMEV2_GPIO_IRQ(96), |
| 143 | .number_of_pins = 32, |
| 144 | }; |
| 145 | |
| 146 | static struct resource gio3_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 147 | DEFINE_RES_MEM(0xe0050180, 0x2c), |
| 148 | DEFINE_RES_MEM(0xe00501c0, 0x20), |
| 149 | DEFINE_RES_IRQ(105), |
| 150 | DEFINE_RES_IRQ(106), |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 151 | }; |
| 152 | |
| 153 | static struct gpio_em_config gio4_config = { |
| 154 | .gpio_base = 128, |
| 155 | .irq_base = EMEV2_GPIO_IRQ(128), |
| 156 | .number_of_pins = 31, |
| 157 | }; |
| 158 | |
| 159 | static struct resource gio4_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 160 | DEFINE_RES_MEM(0xe0050200, 0x2c), |
| 161 | DEFINE_RES_MEM(0xe0050240, 0x20), |
| 162 | DEFINE_RES_IRQ(107), |
| 163 | DEFINE_RES_IRQ(108), |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 164 | }; |
| 165 | |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 166 | #define emev2_register_gio(idx) \ |
| 167 | platform_device_register_resndata(&platform_bus, "em_gio", \ |
| 168 | idx, gio##idx##_resources, \ |
| 169 | ARRAY_SIZE(gio##idx##_resources), \ |
| 170 | &gio##idx##_config, \ |
| 171 | sizeof(struct gpio_em_config)) |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 172 | |
Tetsuyuki Kobayashi | e433d44 | 2012-09-06 20:14:07 +0900 | [diff] [blame] | 173 | static struct resource pmu_resources[] = { |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 174 | DEFINE_RES_IRQ(152), |
| 175 | DEFINE_RES_IRQ(153), |
Tetsuyuki Kobayashi | e433d44 | 2012-09-06 20:14:07 +0900 | [diff] [blame] | 176 | }; |
| 177 | |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 178 | #define emev2_register_pmu() \ |
| 179 | platform_device_register_simple("arm-pmu", -1, \ |
| 180 | pmu_resources, \ |
| 181 | ARRAY_SIZE(pmu_resources)) |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 182 | |
| 183 | void __init emev2_add_standard_devices(void) |
| 184 | { |
| 185 | emev2_clock_init(); |
| 186 | |
Magnus Damm | 210e179 | 2013-07-02 18:27:49 +0900 | [diff] [blame^] | 187 | emev2_register_uart(0); |
| 188 | emev2_register_uart(1); |
| 189 | emev2_register_uart(2); |
| 190 | emev2_register_uart(3); |
| 191 | emev2_register_sti(); |
| 192 | emev2_register_gio(0); |
| 193 | emev2_register_gio(1); |
| 194 | emev2_register_gio(2); |
| 195 | emev2_register_gio(3); |
| 196 | emev2_register_gio(4); |
| 197 | emev2_register_pmu(); |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 198 | } |
| 199 | |
Magnus Damm | 4146fa8 | 2013-07-02 18:27:33 +0900 | [diff] [blame] | 200 | void __init emev2_init_delay(void) |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 201 | { |
| 202 | shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */ |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 203 | } |
| 204 | |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 205 | void __init emev2_init_irq(void) |
| 206 | { |
| 207 | void __iomem *gic_dist_base; |
| 208 | void __iomem *gic_cpu_base; |
| 209 | |
| 210 | /* Static mappings, never released */ |
| 211 | gic_dist_base = ioremap(0xe0028000, PAGE_SIZE); |
| 212 | gic_cpu_base = ioremap(0xe0020000, PAGE_SIZE); |
| 213 | BUG_ON(!gic_dist_base || !gic_cpu_base); |
| 214 | |
| 215 | /* Use GIC to handle interrupts */ |
| 216 | gic_init(0, 29, gic_dist_base, gic_cpu_base); |
| 217 | } |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 218 | |
| 219 | #ifdef CONFIG_USE_OF |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 220 | |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 221 | static const char *emev2_boards_compat_dt[] __initdata = { |
| 222 | "renesas,emev2", |
| 223 | NULL, |
| 224 | }; |
| 225 | |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 226 | DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)") |
Marc Zyngier | a62580e | 2011-09-08 13:15:22 +0100 | [diff] [blame] | 227 | .smp = smp_ops(emev2_smp_ops), |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 228 | .init_early = emev2_init_delay, |
| 229 | .nr_irqs = NR_IRQS_LEGACY, |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 230 | .dt_compat = emev2_boards_compat_dt, |
| 231 | MACHINE_END |
| 232 | |
| 233 | #endif /* CONFIG_USE_OF */ |