LXR linux/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/clk.h>
  22#include <linux/clkdev.h>
  23#include <linux/dma-mapping.h>
  24#include <linux/init.h>
  25#include <linux/of_platform.h>
  26#include <linux/platform_data/rcar-du.h>
  27#include <mach/common.h>
  28#include <mach/irqs.h>
  29#include <mach/rcar-gen2.h>
  30#include <mach/r8a7790.h>
  31#include <asm/mach/arch.h>
  32
  33/* DU */
  34static struct rcar_du_encoder_data lager_du_encoders[] = {
  35        {
  36                .type = RCAR_DU_ENCODER_VGA,
  37                .output = RCAR_DU_OUTPUT_DPAD0,
  38        }, {
  39                .type = RCAR_DU_ENCODER_NONE,
  40                .output = RCAR_DU_OUTPUT_LVDS1,
  41                .connector.lvds.panel = {
  42                        .width_mm = 210,
  43                        .height_mm = 158,
  44                        .mode = {
  45                                .clock = 65000,
  46                                .hdisplay = 1024,
  47                                .hsync_start = 1048,
  48                                .hsync_end = 1184,
  49                                .htotal = 1344,
  50                                .vdisplay = 768,
  51                                .vsync_start = 771,
  52                                .vsync_end = 777,
  53                                .vtotal = 806,
  54                                .flags = 0,
  55                        },
  56                },
  57        },
  58};
  59
  60static struct rcar_du_platform_data lager_du_pdata = {
  61        .encoders = lager_du_encoders,
  62        .num_encoders = ARRAY_SIZE(lager_du_encoders),
  63};
  64
  65static 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
  74static 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
  89static void __init lager_add_standard_devices(void)
  90{
  91        /*
  92         * This is a really crude hack to provide clkdev support to platform
  93         * devices until they get moved to DT.
  94         */
  95        static const struct clk_name {
  96                const char *clk;
  97                const char *con_id;
  98                const char *dev_id;
  99        } clk_names[] = {
 100                { "cmt0", NULL, "sh_cmt.0" },
 101                { "scifa0", NULL, "sh-sci.0" },
 102                { "scifa1", NULL, "sh-sci.1" },
 103                { "scifb0", NULL, "sh-sci.2" },
 104                { "scifb1", NULL, "sh-sci.3" },
 105                { "scifb2", NULL, "sh-sci.4" },
 106                { "scifa2", NULL, "sh-sci.5" },
 107                { "scif0", NULL, "sh-sci.6" },
 108                { "scif1", NULL, "sh-sci.7" },
 109                { "hscif0", NULL, "sh-sci.8" },
 110                { "hscif1", NULL, "sh-sci.9" },
 111                { "du0", "du.0", "rcar-du-r8a7790" },
 112                { "du1", "du.1", "rcar-du-r8a7790" },
 113                { "du2", "du.2", "rcar-du-r8a7790" },
 114                { "lvds0", "lvds.0", "rcar-du-r8a7790" },
 115                { "lvds1", "lvds.1", "rcar-du-r8a7790" },
 116        };
 117        struct clk *clk;
 118        unsigned int i;
 119
 120        for (i = 0; i < ARRAY_SIZE(clk_names); ++i) {
 121                clk = clk_get(NULL, clk_names[i].clk);
 122                if (!IS_ERR(clk)) {
 123                        clk_register_clkdev(clk, clk_names[i].con_id,
 124                                            clk_names[i].dev_id);
 125                        clk_put(clk);
 126                }
 127        }
 128
 129        r8a7790_add_dt_devices();
 130        of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 131
 132        lager_add_du_device();
 133}
 134
 135static const char *lager_boards_compat_dt[] __initdata = {
 136        "renesas,lager",
 137        "renesas,lager-reference",
 138        NULL,
 139};
 140
 141DT_MACHINE_START(LAGER_DT, "lager")
 142        .smp            = smp_ops(r8a7790_smp_ops),
 143        .init_early     = r8a7790_init_early,
 144        .init_time      = rcar_gen2_timer_init,
 145        .init_machine   = lager_add_standard_devices,
 146        .init_late      = shmobile_init_late,
 147        .dt_compat      = lager_boards_compat_dt,
 148MACHINE_END
 149