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/serial_sci.h>
  25 #include <linux/sh_eth.h>
  26 #include <linux/spi/rspi.h>
  27 #include <linux/spi/spi.h>
  28 #include <mach/common.h>
  29 #include <mach/irqs.h>
  30 #include <mach/r7s72100.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33
  34 /* Ether */
  35 static const struct sh_eth_plat_data ether_pdata __initconst = {
  36         .phy                    = 0x00, /* PD60610 */
  37         .edmac_endian           = EDMAC_LITTLE_ENDIAN,
  38         .phy_interface          = PHY_INTERFACE_MODE_MII,
  39         .no_ether_link          = 1
  40 };
  41
  42 static const struct resource ether_resources[] __initconst = {
  43         DEFINE_RES_MEM(0xe8203000, 0x800),
  44         DEFINE_RES_MEM(0xe8204800, 0x200),
  45         DEFINE_RES_IRQ(gic_iid(359)),
  46 };
  47
  48 static const struct platform_device_info ether_info __initconst = {
  49         .parent         = &platform_bus,
  50         .name           = "r7s72100-ether",
  51         .id             = -1,
  52         .res            = ether_resources,
  53         .num_res        = ARRAY_SIZE(ether_resources),
  54         .data           = &ether_pdata,
  55         .size_data      = sizeof(ether_pdata),
  56         .dma_mask       = DMA_BIT_MASK(32),
  57 };
  58
  59 /* RSPI */
  60 #define RSPI_RESOURCE(idx, baseaddr, irq)                               \
  61 static const struct resource rspi##idx##_resources[] __initconst = {    \
  62         DEFINE_RES_MEM(baseaddr, 0x24),                                 \
  63         DEFINE_RES_IRQ_NAMED(irq, "error"),                             \
  64         DEFINE_RES_IRQ_NAMED(irq + 1, "rx"),                            \
  65         DEFINE_RES_IRQ_NAMED(irq + 2, "tx"),                            \
  66 }
  67
  68 RSPI_RESOURCE(0, 0xe800c800, gic_iid(270));
  69 RSPI_RESOURCE(1, 0xe800d000, gic_iid(273));
  70 RSPI_RESOURCE(2, 0xe800d800, gic_iid(276));
  71 RSPI_RESOURCE(3, 0xe800e000, gic_iid(279));
  72 RSPI_RESOURCE(4, 0xe800e800, gic_iid(282));
  73
  74 static const struct rspi_plat_data rspi_pdata __initconst = {
  75         .num_chipselect = 1,
  76 };
  77
  78 #define r7s72100_register_rspi(idx)                                        \
  79         platform_device_register_resndata(&platform_bus, "rspi-rz", idx,   \
  80                                         rspi##idx##_resources,             \
  81                                         ARRAY_SIZE(rspi##idx##_resources), \
  82                                         &rspi_pdata, sizeof(rspi_pdata))
  83
  84 static const struct spi_board_info spi_info[] __initconst = {
  85         {
  86                 .modalias               = "wm8978",
  87                 .max_speed_hz           = 5000000,
  88                 .bus_num                = 4,
  89                 .chip_select            = 0,
  90         },
  91 };
  92
  93 /* SCIF */
  94 #define R7S72100_SCIF(index, baseaddr, irq)                             \
  95 static const struct plat_sci_port scif##index##_platform_data = {       \
  96         .type           = PORT_SCIF,                                    \
  97         .regtype        = SCIx_SH2_SCIF_FIFODATA_REGTYPE,               \
  98         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,              \
  99         .scscr          = SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE | \
 100                           SCSCR_REIE,                                   \
 101 };                                                                      \
 102                                                                         \
 103 static struct resource scif##index##_resources[] = {                    \
 104         DEFINE_RES_MEM(baseaddr, 0x100),                                \
 105         DEFINE_RES_IRQ(irq + 1),                                        \
 106         DEFINE_RES_IRQ(irq + 2),                                        \
 107         DEFINE_RES_IRQ(irq + 3),                                        \
 108         DEFINE_RES_IRQ(irq),                                            \
 109 }                                                                       \
 110
 111 R7S72100_SCIF(0, 0xe8007000, gic_iid(221));
 112 R7S72100_SCIF(1, 0xe8007800, gic_iid(225));
 113 R7S72100_SCIF(2, 0xe8008000, gic_iid(229));
 114 R7S72100_SCIF(3, 0xe8008800, gic_iid(233));
 115 R7S72100_SCIF(4, 0xe8009000, gic_iid(237));
 116 R7S72100_SCIF(5, 0xe8009800, gic_iid(241));
 117 R7S72100_SCIF(6, 0xe800a000, gic_iid(245));
 118 R7S72100_SCIF(7, 0xe800a800, gic_iid(249));
 119
 120 #define r7s72100_register_scif(index)                                          \
 121         platform_device_register_resndata(&platform_bus, "sh-sci", index,      \
 122                                           scif##index##_resources,             \
 123                                           ARRAY_SIZE(scif##index##_resources), \
 124                                           &scif##index##_platform_data,        \
 125                                           sizeof(scif##index##_platform_data))
 126
 127 static void __init genmai_add_standard_devices(void)
 128 {
 129         r7s72100_clock_init();
 130         r7s72100_add_dt_devices();
 131
 132         platform_device_register_full(&ether_info);
 133
 134         r7s72100_register_rspi(0);
 135         r7s72100_register_rspi(1);
 136         r7s72100_register_rspi(2);
 137         r7s72100_register_rspi(3);
 138         r7s72100_register_rspi(4);
 139         spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));
 140
 141         r7s72100_register_scif(0);
 142         r7s72100_register_scif(1);
 143         r7s72100_register_scif(2);
 144         r7s72100_register_scif(3);
 145         r7s72100_register_scif(4);
 146         r7s72100_register_scif(5);
 147         r7s72100_register_scif(6);
 148         r7s72100_register_scif(7);
 149 }
 150
 151 static const char * const genmai_boards_compat_dt[] __initconst = {
 152         "renesas,genmai",
 153         NULL,
 154 };
 155
 156 DT_MACHINE_START(GENMAI_DT, "genmai")
 157         .init_early     = r7s72100_init_early,
 158         .init_machine   = genmai_add_standard_devices,
 159         .dt_compat      = genmai_boards_compat_dt,
 160 MACHINE_END