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

   1 /*
   2  * Genmai board support
   3  *
   4  * Copyright (C) 2013-2014  Renesas Solutions Corp.
   5  * Copyright (C) 2013  Magnus Damm
   6  * Copyright (C) 2014  Cogent Embedded, Inc.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; version 2 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  */
  21
  22 #include <linux/kernel.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/sh_eth.h>
  25 #include <linux/spi/rspi.h>
  26 #include <linux/spi/spi.h>
  27 #include <mach/common.h>
  28 #include <mach/irqs.h>
  29 #include <mach/r7s72100.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32
  33 /* Ether */
  34 static const struct sh_eth_plat_data ether_pdata __initconst = {
  35         .phy                    = 0x00, /* PD60610 */
  36         .edmac_endian           = EDMAC_LITTLE_ENDIAN,
  37         .phy_interface          = PHY_INTERFACE_MODE_MII,
  38         .no_ether_link          = 1
  39 };
  40
  41 static const struct resource ether_resources[] __initconst = {
  42         DEFINE_RES_MEM(0xe8203000, 0x800),
  43         DEFINE_RES_MEM(0xe8204800, 0x200),
  44         DEFINE_RES_IRQ(gic_iid(359)),
  45 };
  46
  47 static const struct platform_device_info ether_info __initconst = {
  48         .parent         = &platform_bus,
  49         .name           = "r7s72100-ether",
  50         .id             = -1,
  51         .res            = ether_resources,
  52         .num_res        = ARRAY_SIZE(ether_resources),
  53         .data           = &ether_pdata,
  54         .size_data      = sizeof(ether_pdata),
  55         .dma_mask       = DMA_BIT_MASK(32),
  56 };
  57
  58 /* RSPI */
  59 #define RSPI_RESOURCE(idx, baseaddr, irq)                               \
  60 static const struct resource rspi##idx##_resources[] __initconst = {    \
  61         DEFINE_RES_MEM(baseaddr, 0x24),                                 \
  62         DEFINE_RES_IRQ_NAMED(irq, "error"),                             \
  63         DEFINE_RES_IRQ_NAMED(irq + 1, "rx"),                            \
  64         DEFINE_RES_IRQ_NAMED(irq + 2, "tx"),                            \
  65 }
  66
  67 RSPI_RESOURCE(0, 0xe800c800, gic_iid(270));
  68 RSPI_RESOURCE(1, 0xe800d000, gic_iid(273));
  69 RSPI_RESOURCE(2, 0xe800d800, gic_iid(276));
  70 RSPI_RESOURCE(3, 0xe800e000, gic_iid(279));
  71 RSPI_RESOURCE(4, 0xe800e800, gic_iid(282));
  72
  73 static const struct rspi_plat_data rspi_pdata __initconst = {
  74         .num_chipselect = 1,
  75 };
  76
  77 #define r7s72100_register_rspi(idx)                                        \
  78         platform_device_register_resndata(&platform_bus, "rspi-rz", idx,   \
  79                                         rspi##idx##_resources,             \
  80                                         ARRAY_SIZE(rspi##idx##_resources), \
  81                                         &rspi_pdata, sizeof(rspi_pdata))
  82
  83 static const struct spi_board_info spi_info[] __initconst = {
  84         {
  85                 .modalias               = "wm8978",
  86                 .max_speed_hz           = 5000000,
  87                 .bus_num                = 4,
  88                 .chip_select            = 0,
  89         },
  90 };
  91
  92 static void __init genmai_add_standard_devices(void)
  93 {
  94         r7s72100_clock_init();
  95         r7s72100_add_dt_devices();
  96
  97         platform_device_register_full(&ether_info);
  98
  99         r7s72100_register_rspi(0);
 100         r7s72100_register_rspi(1);
 101         r7s72100_register_rspi(2);
 102         r7s72100_register_rspi(3);
 103         r7s72100_register_rspi(4);
 104         spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));
 105 }
 106
 107 static const char * const genmai_boards_compat_dt[] __initconst = {
 108         "renesas,genmai",
 109         NULL,
 110 };
 111
 112 DT_MACHINE_START(GENMAI_DT, "genmai")
 113         .init_early     = r7s72100_init_early,
 114         .init_machine   = genmai_add_standard_devices,
 115         .dt_compat      = genmai_boards_compat_dt,
 116 MACHINE_END