arch/arm/mach-shmobile/board-ape6evm.c

   1 /*
   2  * APE6EVM board support
   3  *
   4  * Copyright (C) 2013  Renesas Solutions Corp.
   5  * Copyright (C) 2013  Magnus Damm
   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 as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include <linux/gpio.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/kernel.h>
  24 #include <linux/pinctrl/machine.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/regulator/fixed.h>
  27 #include <linux/regulator/machine.h>
  28 #include <linux/sh_clk.h>
  29 #include <linux/smsc911x.h>
  30 #include <mach/common.h>
  31 #include <mach/irqs.h>
  32 #include <mach/r8a73a4.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35
  36 /* Dummy supplies, where voltage doesn't matter */
  37 static struct regulator_consumer_supply dummy_supplies[] = {
  38         REGULATOR_SUPPLY("vddvario", "smsc911x"),
  39         REGULATOR_SUPPLY("vdd33a", "smsc911x"),
  40 };
  41
  42 /* SMSC LAN9220 */
  43 static const struct resource lan9220_res[] = {
  44         DEFINE_RES_MEM(0x08000000, 0x1000),
  45         {
  46                 .start  = irq_pin(40), /* IRQ40 */
  47                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
  48         },
  49 };
  50
  51 static const struct smsc911x_platform_config lan9220_data = {
  52         .flags          = SMSC911X_USE_32BIT,
  53         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
  54         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
  55 };
  56
  57 static const struct pinctrl_map ape6evm_pinctrl_map[] = {
  58         /* SCIFA0 console */
  59         PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a73a4",
  60                                   "scifa0_data", "scifa0"),
  61         /* SMSC */
  62         PIN_MAP_MUX_GROUP_DEFAULT("smsc911x", "pfc-r8a73a4",
  63                                   "irqc_irq40", "irqc"),
  64 };
  65
  66 static void __init ape6evm_add_standard_devices(void)
  67 {
  68
  69         struct clk *parent;
  70         struct clk *mp;
  71
  72         r8a73a4_clock_init();
  73
  74         /* MP clock parent = extal2 */
  75         parent      = clk_get(NULL, "extal2");
  76         mp          = clk_get(NULL, "mp");
  77         BUG_ON(IS_ERR(parent) || IS_ERR(mp));
  78
  79         clk_set_parent(mp, parent);
  80         clk_put(parent);
  81         clk_put(mp);
  82
  83         pinctrl_register_mappings(ape6evm_pinctrl_map,
  84                                   ARRAY_SIZE(ape6evm_pinctrl_map));
  85         r8a73a4_pinmux_init();
  86         r8a73a4_add_standard_devices();
  87
  88         /* LAN9220 ethernet */
  89         gpio_request_one(270, GPIOF_OUT_INIT_HIGH, NULL); /* smsc9220 RESET */
  90
  91         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
  92
  93         platform_device_register_resndata(&platform_bus, "smsc911x", -1,
  94                                           lan9220_res, ARRAY_SIZE(lan9220_res),
  95                                           &lan9220_data, sizeof(lan9220_data));
  96 }
  97
  98 static const char *ape6evm_boards_compat_dt[] __initdata = {
  99         "renesas,ape6evm",
 100         NULL,
 101 };
 102
 103 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
 104         .init_time      = shmobile_timer_init,
 105         .init_machine   = ape6evm_add_standard_devices,
 106         .dt_compat      = ape6evm_boards_compat_dt,
 107 MACHINE_END