arch/arm/mach-shmobile/board-koelsch-reference.c

   1 /*
   2  * Koelsch board support - Reference DT implementation
   3  *
   4  * Copyright (C) 2013  Renesas Electronics Corporation
   5  * Copyright (C) 2013  Renesas Solutions Corp.
   6  * Copyright (C) 2013  Magnus Damm
   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/dma-mapping.h>
  23 #include <linux/kernel.h>
  24 #include <linux/of_platform.h>
  25 #include <linux/platform_data/rcar-du.h>
  26 #include <mach/clock.h>
  27 #include <mach/common.h>
  28 #include <mach/irqs.h>
  29 #include <mach/rcar-gen2.h>
  30 #include <mach/r8a7791.h>
  31 #include <asm/mach/arch.h>
  32
  33 /* DU */
  34 static struct rcar_du_encoder_data koelsch_du_encoders[] = {
  35         {
  36                 .type = RCAR_DU_ENCODER_NONE,
  37                 .output = RCAR_DU_OUTPUT_LVDS0,
  38                 .connector.lvds.panel = {
  39                         .width_mm = 210,
  40                         .height_mm = 158,
  41                         .mode = {
  42                                 .clock = 65000,
  43                                 .hdisplay = 1024,
  44                                 .hsync_start = 1048,
  45                                 .hsync_end = 1184,
  46                                 .htotal = 1344,
  47                                 .vdisplay = 768,
  48                                 .vsync_start = 771,
  49                                 .vsync_end = 777,
  50                                 .vtotal = 806,
  51                                 .flags = 0,
  52                         },
  53                 },
  54         },
  55 };
  56
  57 static struct rcar_du_platform_data koelsch_du_pdata = {
  58         .encoders = koelsch_du_encoders,
  59         .num_encoders = ARRAY_SIZE(koelsch_du_encoders),
  60 };
  61
  62 static const struct resource du_resources[] __initconst = {
  63         DEFINE_RES_MEM(0xfeb00000, 0x40000),
  64         DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"),
  65         DEFINE_RES_IRQ(gic_spi(256)),
  66         DEFINE_RES_IRQ(gic_spi(268)),
  67 };
  68
  69 static void __init koelsch_add_du_device(void)
  70 {
  71         struct platform_device_info info = {
  72                 .name = "rcar-du-r8a7791",
  73                 .id = -1,
  74                 .res = du_resources,
  75                 .num_res = ARRAY_SIZE(du_resources),
  76                 .data = &koelsch_du_pdata,
  77                 .size_data = sizeof(koelsch_du_pdata),
  78                 .dma_mask = DMA_BIT_MASK(32),
  79         };
  80
  81         platform_device_register_full(&info);
  82 }
  83
  84 /*
  85  * This is a really crude hack to provide clkdev support to platform
  86  * devices until they get moved to DT.
  87  */
  88 static const struct clk_name clk_names[] __initconst = {
  89         { "cmt0", "fck", "sh-cmt-48-gen2.0" },
  90         { "du0", "du.0", "rcar-du-r8a7791" },
  91         { "du1", "du.1", "rcar-du-r8a7791" },
  92         { "lvds0", "lvds.0", "rcar-du-r8a7791" },
  93 };
  94
  95 /*
  96  * This is a really crude hack to work around core platform clock issues
  97  */
  98 static const struct clk_name clk_enables[] __initconst = {
  99         { "ether", NULL, "ee700000.ethernet" },
 100         { "i2c2", NULL, "e6530000.i2c" },
 101         { "msiof0", NULL, "e6e20000.spi" },
 102         { "qspi_mod", NULL, "e6b10000.spi" },
 103         { "sdhi0", NULL, "ee100000.sd" },
 104         { "sdhi1", NULL, "ee140000.sd" },
 105         { "sdhi2", NULL, "ee160000.sd" },
 106         { "thermal", NULL, "e61f0000.thermal" },
 107 };
 108
 109 static void __init koelsch_add_standard_devices(void)
 110 {
 111         shmobile_clk_workaround(clk_names, ARRAY_SIZE(clk_names), false);
 112         shmobile_clk_workaround(clk_enables, ARRAY_SIZE(clk_enables), true);
 113         r8a7791_add_dt_devices();
 114         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 115
 116         koelsch_add_du_device();
 117 }
 118
 119 static const char * const koelsch_boards_compat_dt[] __initconst = {
 120         "renesas,koelsch",
 121         "renesas,koelsch-reference",
 122         NULL,
 123 };
 124
 125 DT_MACHINE_START(KOELSCH_DT, "koelsch")
 126         .smp            = smp_ops(r8a7791_smp_ops),
 127         .init_early     = shmobile_init_delay,
 128         .init_time      = rcar_gen2_timer_init,
 129         .init_machine   = koelsch_add_standard_devices,
 130         .init_late      = shmobile_init_late,
 131         .dt_compat      = koelsch_boards_compat_dt,
 132 MACHINE_END