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

   1 /*
   2  * Lager board support - Reference DT implementation
   3  *
   4  * Copyright (C) 2013  Renesas Solutions Corp.
   5  * Copyright (C) 2013  Simon Horman
   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/dma-mapping.h>
  22 #include <linux/init.h>
  23 #include <linux/of_platform.h>
  24 #include <linux/platform_data/rcar-du.h>
  25 #include <mach/clock.h>
  26 #include <mach/common.h>
  27 #include <mach/irqs.h>
  28 #include <mach/rcar-gen2.h>
  29 #include <mach/r8a7790.h>
  30 #include <asm/mach/arch.h>
  31
  32 /* DU */
  33 static struct rcar_du_encoder_data lager_du_encoders[] = {
  34         {
  35                 .type = RCAR_DU_ENCODER_VGA,
  36                 .output = RCAR_DU_OUTPUT_DPAD0,
  37         }, {
  38                 .type = RCAR_DU_ENCODER_NONE,
  39                 .output = RCAR_DU_OUTPUT_LVDS1,
  40                 .connector.lvds.panel = {
  41                         .width_mm = 210,
  42                         .height_mm = 158,
  43                         .mode = {
  44                                 .clock = 65000,
  45                                 .hdisplay = 1024,
  46                                 .hsync_start = 1048,
  47                                 .hsync_end = 1184,
  48                                 .htotal = 1344,
  49                                 .vdisplay = 768,
  50                                 .vsync_start = 771,
  51                                 .vsync_end = 777,
  52                                 .vtotal = 806,
  53                                 .flags = 0,
  54                         },
  55                 },
  56         },
  57 };
  58
  59 static struct rcar_du_platform_data lager_du_pdata = {
  60         .encoders = lager_du_encoders,
  61         .num_encoders = ARRAY_SIZE(lager_du_encoders),
  62 };
  63
  64 static const struct resource du_resources[] __initconst = {
  65         DEFINE_RES_MEM(0xfeb00000, 0x70000),
  66         DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"),
  67         DEFINE_RES_MEM_NAMED(0xfeb94000, 0x1c, "lvds.1"),
  68         DEFINE_RES_IRQ(gic_spi(256)),
  69         DEFINE_RES_IRQ(gic_spi(268)),
  70         DEFINE_RES_IRQ(gic_spi(269)),
  71 };
  72
  73 static void __init lager_add_du_device(void)
  74 {
  75         struct platform_device_info info = {
  76                 .name = "rcar-du-r8a7790",
  77                 .id = -1,
  78                 .res = du_resources,
  79                 .num_res = ARRAY_SIZE(du_resources),
  80                 .data = &lager_du_pdata,
  81                 .size_data = sizeof(lager_du_pdata),
  82                 .dma_mask = DMA_BIT_MASK(32),
  83         };
  84
  85         platform_device_register_full(&info);
  86 }
  87
  88 /*
  89  * This is a really crude hack to provide clkdev support to platform
  90  * devices until they get moved to DT.
  91  */
  92 static const struct clk_name clk_names[] __initconst = {
  93         { "cmt0", "fck", "sh-cmt-48-gen2.0" },
  94         { "du0", "du.0", "rcar-du-r8a7790" },
  95         { "du1", "du.1", "rcar-du-r8a7790" },
  96         { "du2", "du.2", "rcar-du-r8a7790" },
  97         { "lvds0", "lvds.0", "rcar-du-r8a7790" },
  98         { "lvds1", "lvds.1", "rcar-du-r8a7790" },
  99 };
 100
 101 /*
 102  * This is a really crude hack to work around core platform clock issues
 103  */
 104 static const struct clk_name clk_enables[] __initconst = {
 105         { "ether", NULL, "ee700000.ethernet" },
 106         { "msiof1", NULL, "e6e10000.spi" },
 107         { "mmcif1", NULL, "ee220000.mmc" },
 108         { "qspi_mod", NULL, "e6b10000.spi" },
 109         { "sdhi0", NULL, "ee100000.sd" },
 110         { "sdhi2", NULL, "ee140000.sd" },
 111         { "thermal", NULL, "e61f0000.thermal" },
 112 };
 113
 114 static void __init lager_add_standard_devices(void)
 115 {
 116         shmobile_clk_workaround(clk_names, ARRAY_SIZE(clk_names), false);
 117         shmobile_clk_workaround(clk_enables, ARRAY_SIZE(clk_enables), true);
 118         r8a7790_add_dt_devices();
 119         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 120
 121         lager_add_du_device();
 122 }
 123
 124 static const char *lager_boards_compat_dt[] __initdata = {
 125         "renesas,lager",
 126         "renesas,lager-reference",
 127         NULL,
 128 };
 129
 130 DT_MACHINE_START(LAGER_DT, "lager")
 131         .smp            = smp_ops(r8a7790_smp_ops),
 132         .init_early     = r8a7790_init_early,
 133         .init_time      = rcar_gen2_timer_init,
 134         .init_machine   = lager_add_standard_devices,
 135         .init_late      = shmobile_init_late,
 136         .dt_compat      = lager_boards_compat_dt,
 137 MACHINE_END