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