arch/arm/mach-shmobile/setup-emev2.c

   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>
  24 #include <linux/platform_data/gpio-em.h>
  25 #include <linux/of_platform.h>
  26 #include <linux/delay.h>
  27 #include <linux/input.h>
  28 #include <linux/io.h>
  29 #include <linux/irqchip/arm-gic.h>
  30 #include <mach/common.h>
  31 #include <mach/emev2.h>
  32 #include <mach/irqs.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/map.h>
  36 #include <asm/mach/time.h>
  37
  38 static struct map_desc emev2_io_desc[] __initdata = {
  39 #ifdef CONFIG_SMP
  40         /* 2M mapping for SCU + L2 controller */
  41         {
  42                 .virtual        = 0xf0000000,
  43                 .pfn            = __phys_to_pfn(0x1e000000),
  44                 .length         = SZ_2M,
  45                 .type           = MT_DEVICE
  46         },
  47 #endif
  48 };
  49
  50 void __init emev2_map_io(void)
  51 {
  52         iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc));
  53 }
  54
  55 /* UART */
  56 static struct resource uart0_resources[] = {
  57         DEFINE_RES_MEM(0xe1020000, 0x38),
  58         DEFINE_RES_IRQ(40),
  59 };
  60
  61 static struct resource uart1_resources[] = {
  62         DEFINE_RES_MEM(0xe1030000, 0x38),
  63         DEFINE_RES_IRQ(41),
  64 };
  65
  66 static struct resource uart2_resources[] = {
  67         DEFINE_RES_MEM(0xe1040000, 0x38),
  68         DEFINE_RES_IRQ(42),
  69 };
  70
  71 static struct resource uart3_resources[] = {
  72         DEFINE_RES_MEM(0xe1050000, 0x38),
  73         DEFINE_RES_IRQ(43),
  74 };
  75
  76 #define emev2_register_uart(idx)                                        \
  77         platform_device_register_simple("serial8250-em", idx,           \
  78                                         uart##idx##_resources,          \
  79                                         ARRAY_SIZE(uart##idx##_resources))
  80
  81 /* STI */
  82 static struct resource sti_resources[] = {
  83         DEFINE_RES_MEM(0xe0180000, 0x54),
  84         DEFINE_RES_IRQ(157),
  85 };
  86
  87 #define emev2_register_sti()                                    \
  88         platform_device_register_simple("em_sti", 0,            \
  89                                         sti_resources,          \
  90                                         ARRAY_SIZE(sti_resources))
  91
  92 /* GIO */
  93 static struct gpio_em_config gio0_config = {
  94         .gpio_base = 0,
  95         .irq_base = EMEV2_GPIO_IRQ(0),
  96         .number_of_pins = 32,
  97 };
  98
  99 static struct resource gio0_resources[] = {
 100         DEFINE_RES_MEM(0xe0050000, 0x2c),
 101         DEFINE_RES_MEM(0xe0050040, 0x20),
 102         DEFINE_RES_IRQ(99),
 103         DEFINE_RES_IRQ(100),
 104 };
 105
 106 static struct gpio_em_config gio1_config = {
 107         .gpio_base = 32,
 108         .irq_base = EMEV2_GPIO_IRQ(32),
 109         .number_of_pins = 32,
 110 };
 111
 112 static struct resource gio1_resources[] = {
 113         DEFINE_RES_MEM(0xe0050080, 0x2c),
 114         DEFINE_RES_MEM(0xe00500c0, 0x20),
 115         DEFINE_RES_IRQ(101),
 116         DEFINE_RES_IRQ(102),
 117 };
 118
 119 static struct gpio_em_config gio2_config = {
 120         .gpio_base = 64,
 121         .irq_base = EMEV2_GPIO_IRQ(64),
 122         .number_of_pins = 32,
 123 };
 124
 125 static struct resource gio2_resources[] = {
 126         DEFINE_RES_MEM(0xe0050100, 0x2c),
 127         DEFINE_RES_MEM(0xe0050140, 0x20),
 128         DEFINE_RES_IRQ(103),
 129         DEFINE_RES_IRQ(104),
 130 };
 131
 132 static struct gpio_em_config gio3_config = {
 133         .gpio_base = 96,
 134         .irq_base = EMEV2_GPIO_IRQ(96),
 135         .number_of_pins = 32,
 136 };
 137
 138 static struct resource gio3_resources[] = {
 139         DEFINE_RES_MEM(0xe0050180, 0x2c),
 140         DEFINE_RES_MEM(0xe00501c0, 0x20),
 141         DEFINE_RES_IRQ(105),
 142         DEFINE_RES_IRQ(106),
 143 };
 144
 145 static struct gpio_em_config gio4_config = {
 146         .gpio_base = 128,
 147         .irq_base = EMEV2_GPIO_IRQ(128),
 148         .number_of_pins = 31,
 149 };
 150
 151 static struct resource gio4_resources[] = {
 152         DEFINE_RES_MEM(0xe0050200, 0x2c),
 153         DEFINE_RES_MEM(0xe0050240, 0x20),
 154         DEFINE_RES_IRQ(107),
 155         DEFINE_RES_IRQ(108),
 156 };
 157
 158 #define emev2_register_gio(idx)                                         \
 159         platform_device_register_resndata(&platform_bus, "em_gio",      \
 160                                           idx, gio##idx##_resources,    \
 161                                           ARRAY_SIZE(gio##idx##_resources), \
 162                                           &gio##idx##_config,           \
 163                                           sizeof(struct gpio_em_config))
 164
 165 static struct resource pmu_resources[] = {
 166         DEFINE_RES_IRQ(152),
 167         DEFINE_RES_IRQ(153),
 168 };
 169
 170 #define emev2_register_pmu()                                    \
 171         platform_device_register_simple("arm-pmu", -1,          \
 172                                         pmu_resources,          \
 173                                         ARRAY_SIZE(pmu_resources))
 174
 175 void __init emev2_add_standard_devices(void)
 176 {
 177         if (!IS_ENABLED(CONFIG_COMMON_CLK))
 178                 emev2_clock_init();
 179
 180         emev2_register_uart(0);
 181         emev2_register_uart(1);
 182         emev2_register_uart(2);
 183         emev2_register_uart(3);
 184         emev2_register_sti();
 185         emev2_register_gio(0);
 186         emev2_register_gio(1);
 187         emev2_register_gio(2);
 188         emev2_register_gio(3);
 189         emev2_register_gio(4);
 190         emev2_register_pmu();
 191 }
 192
 193 void __init emev2_init_delay(void)
 194 {
 195         shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */
 196 }
 197
 198 #ifdef CONFIG_USE_OF
 199
 200 static const char *emev2_boards_compat_dt[] __initdata = {
 201         "renesas,emev2",
 202         NULL,
 203 };
 204
 205 DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)")
 206         .smp            = smp_ops(emev2_smp_ops),
 207         .map_io         = emev2_map_io,
 208         .init_early     = emev2_init_delay,
 209         .dt_compat      = emev2_boards_compat_dt,
 210 MACHINE_END
 211
 212 #endif /* CONFIG_USE_OF */