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
  17 #include <linux/dma-mapping.h>
  18 #include <linux/init.h>
  19 #include <linux/of_platform.h>
  20 #include <linux/platform_data/rcar-du.h>
  21
  22 #include <asm/mach/arch.h>
  23
  24 #include "clock.h"
  25 #include "common.h"
  26 #include "irqs.h"
  27 #include "r8a7790.h"
  28 #include "rcar-gen2.h"
  29
  30 /* DU */
  31 static struct rcar_du_encoder_data lager_du_encoders[] = {
  32         {
  33                 .type = RCAR_DU_ENCODER_VGA,
  34                 .output = RCAR_DU_OUTPUT_DPAD0,
  35         }, {
  36                 .type = RCAR_DU_ENCODER_NONE,
  37                 .output = RCAR_DU_OUTPUT_LVDS1,
  38                 .connector.lvds.panel = {
  39                         .width_mm = 210,
  40                         .height_mm = 158,
  41                         .mode = {
  42                                 .pixelclock = 65000000,
  43                                 .hactive = 1024,
  44                                 .hfront_porch = 20,
  45                                 .hback_porch = 160,
  46                                 .hsync_len = 136,
  47                                 .vactive = 768,
  48                                 .vfront_porch = 3,
  49                                 .vback_porch = 29,
  50                                 .vsync_len = 6,
  51                         },
  52                 },
  53         },
  54 };
  55
  56 static struct rcar_du_platform_data lager_du_pdata = {
  57         .encoders = lager_du_encoders,
  58         .num_encoders = ARRAY_SIZE(lager_du_encoders),
  59 };
  60
  61 static const struct resource du_resources[] __initconst = {
  62         DEFINE_RES_MEM(0xfeb00000, 0x70000),
  63         DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"),
  64         DEFINE_RES_MEM_NAMED(0xfeb94000, 0x1c, "lvds.1"),
  65         DEFINE_RES_IRQ(gic_spi(256)),
  66         DEFINE_RES_IRQ(gic_spi(268)),
  67         DEFINE_RES_IRQ(gic_spi(269)),
  68 };
  69
  70 static void __init lager_add_du_device(void)
  71 {
  72         struct platform_device_info info = {
  73                 .name = "rcar-du-r8a7790",
  74                 .id = -1,
  75                 .res = du_resources,
  76                 .num_res = ARRAY_SIZE(du_resources),
  77                 .data = &lager_du_pdata,
  78                 .size_data = sizeof(lager_du_pdata),
  79                 .dma_mask = DMA_BIT_MASK(32),
  80         };
  81
  82         platform_device_register_full(&info);
  83 }
  84
  85 /*
  86  * This is a really crude hack to provide clkdev support to platform
  87  * devices until they get moved to DT.
  88  */
  89 static const struct clk_name clk_names[] __initconst = {
  90         { "du0", "du.0", "rcar-du-r8a7790" },
  91         { "du1", "du.1", "rcar-du-r8a7790" },
  92         { "du2", "du.2", "rcar-du-r8a7790" },
  93         { "lvds0", "lvds.0", "rcar-du-r8a7790" },
  94         { "lvds1", "lvds.1", "rcar-du-r8a7790" },
  95 };
  96
  97 static void __init lager_add_standard_devices(void)
  98 {
  99         shmobile_clk_workaround(clk_names, ARRAY_SIZE(clk_names), false);
 100         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 101
 102         lager_add_du_device();
 103 }
 104
 105 static const char *lager_boards_compat_dt[] __initdata = {
 106         "renesas,lager",
 107         "renesas,lager-reference",
 108         NULL,
 109 };
 110
 111 DT_MACHINE_START(LAGER_DT, "lager")
 112         .smp            = smp_ops(r8a7790_smp_ops),
 113         .init_early     = shmobile_init_delay,
 114         .init_time      = rcar_gen2_timer_init,
 115         .init_machine   = lager_add_standard_devices,
 116         .init_late      = shmobile_init_late,
 117         .reserve        = rcar_gen2_reserve,
 118         .dt_compat      = lager_boards_compat_dt,
 119 MACHINE_END