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
  26 #include <asm/mach/arch.h>
  27
  28 #include "clock.h"
  29 #include "common.h"
  30 #include "irqs.h"
  31 #include "r8a7790.h"
  32 #include "rcar-gen2.h"
  33
  34 /* DU */
  35 static struct rcar_du_encoder_data lager_du_encoders[] = {
  36         {
  37                 .type = RCAR_DU_ENCODER_VGA,
  38                 .output = RCAR_DU_OUTPUT_DPAD0,
  39         }, {
  40                 .type = RCAR_DU_ENCODER_NONE,
  41                 .output = RCAR_DU_OUTPUT_LVDS1,
  42                 .connector.lvds.panel = {
  43                         .width_mm = 210,
  44                         .height_mm = 158,
  45                         .mode = {
  46                                 .pixelclock = 65000000,
  47                                 .hactive = 1024,
  48                                 .hfront_porch = 20,
  49                                 .hback_porch = 160,
  50                                 .hsync_len = 136,
  51                                 .vactive = 768,
  52                                 .vfront_porch = 3,
  53                                 .vback_porch = 29,
  54                                 .vsync_len = 6,
  55                         },
  56                 },
  57         },
  58 };
  59
  60 static struct rcar_du_platform_data lager_du_pdata = {
  61         .encoders = lager_du_encoders,
  62         .num_encoders = ARRAY_SIZE(lager_du_encoders),
  63 };
  64
  65 static const struct resource du_resources[] __initconst = {
  66         DEFINE_RES_MEM(0xfeb00000, 0x70000),
  67         DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"),
  68         DEFINE_RES_MEM_NAMED(0xfeb94000, 0x1c, "lvds.1"),
  69         DEFINE_RES_IRQ(gic_spi(256)),
  70         DEFINE_RES_IRQ(gic_spi(268)),
  71         DEFINE_RES_IRQ(gic_spi(269)),
  72 };
  73
  74 static void __init lager_add_du_device(void)
  75 {
  76         struct platform_device_info info = {
  77                 .name = "rcar-du-r8a7790",
  78                 .id = -1,
  79                 .res = du_resources,
  80                 .num_res = ARRAY_SIZE(du_resources),
  81                 .data = &lager_du_pdata,
  82                 .size_data = sizeof(lager_du_pdata),
  83                 .dma_mask = DMA_BIT_MASK(32),
  84         };
  85
  86         platform_device_register_full(&info);
  87 }
  88
  89 /*
  90  * This is a really crude hack to provide clkdev support to platform
  91  * devices until they get moved to DT.
  92  */
  93 static const struct clk_name clk_names[] __initconst = {
  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 static void __init lager_add_standard_devices(void)
 102 {
 103         shmobile_clk_workaround(clk_names, ARRAY_SIZE(clk_names), false);
 104         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 105
 106         lager_add_du_device();
 107 }
 108
 109 static const char *lager_boards_compat_dt[] __initdata = {
 110         "renesas,lager",
 111         "renesas,lager-reference",
 112         NULL,
 113 };
 114
 115 DT_MACHINE_START(LAGER_DT, "lager")
 116         .smp            = smp_ops(r8a7790_smp_ops),
 117         .init_early     = shmobile_init_delay,
 118         .init_time      = rcar_gen2_timer_init,
 119         .init_machine   = lager_add_standard_devices,
 120         .init_late      = shmobile_init_late,
 121         .reserve        = rcar_gen2_reserve,
 122         .dt_compat      = lager_boards_compat_dt,
 123 MACHINE_END