2 * Koelsch board support - Reference DT implementation
4 * Copyright (C) 2013 Renesas Electronics Corporation
5 * Copyright (C) 2013 Renesas Solutions Corp.
6 * Copyright (C) 2013 Magnus Damm
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.
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.
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
22 #include <linux/clk.h>
23 #include <linux/clkdev.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/kernel.h>
26 #include <linux/of_platform.h>
27 #include <linux/platform_data/rcar-du.h>
28 #include <mach/common.h>
29 #include <mach/irqs.h>
30 #include <mach/rcar-gen2.h>
31 #include <mach/r8a7791.h>
32 #include <asm/mach/arch.h>
35 static struct rcar_du_encoder_data koelsch_du_encoders[] = {
37 .type = RCAR_DU_ENCODER_NONE,
38 .output = RCAR_DU_OUTPUT_LVDS0,
39 .connector.lvds.panel = {
58 static struct rcar_du_platform_data koelsch_du_pdata = {
59 .encoders = koelsch_du_encoders,
60 .num_encoders = ARRAY_SIZE(koelsch_du_encoders),
63 static const struct resource du_resources[] __initconst = {
64 DEFINE_RES_MEM(0xfeb00000, 0x40000),
65 DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"),
66 DEFINE_RES_IRQ(gic_spi(256)),
67 DEFINE_RES_IRQ(gic_spi(268)),
70 static void __init koelsch_add_du_device(void)
72 struct platform_device_info info = {
73 .name = "rcar-du-r8a7791",
76 .num_res = ARRAY_SIZE(du_resources),
77 .data = &koelsch_du_pdata,
78 .size_data = sizeof(koelsch_du_pdata),
79 .dma_mask = DMA_BIT_MASK(32),
82 platform_device_register_full(&info);
85 static void __init koelsch_add_standard_devices(void)
88 * This is a really crude hack to provide clkdev support to the CMT and
89 * DU devices until they get moved to DT.
91 static const struct clk_name {
96 { "cmt0", NULL, "sh_cmt.0" },
97 { "scifa0", NULL, "sh-sci.0" },
98 { "scifa1", NULL, "sh-sci.1" },
99 { "scifb0", NULL, "sh-sci.2" },
100 { "scifb1", NULL, "sh-sci.3" },
101 { "scifb2", NULL, "sh-sci.4" },
102 { "scifa2", NULL, "sh-sci.5" },
103 { "scif0", NULL, "sh-sci.6" },
104 { "scif1", NULL, "sh-sci.7" },
105 { "scif2", NULL, "sh-sci.8" },
106 { "scif3", NULL, "sh-sci.9" },
107 { "scif4", NULL, "sh-sci.10" },
108 { "scif5", NULL, "sh-sci.11" },
109 { "scifa3", NULL, "sh-sci.12" },
110 { "scifa4", NULL, "sh-sci.13" },
111 { "scifa5", NULL, "sh-sci.14" },
112 { "du0", "du.0", "rcar-du-r8a7791" },
113 { "du1", "du.1", "rcar-du-r8a7791" },
114 { "lvds0", "lvds.0", "rcar-du-r8a7791" },
119 for (i = 0; i < ARRAY_SIZE(clk_names); ++i) {
120 clk = clk_get(NULL, clk_names[i].clk);
122 clk_register_clkdev(clk, clk_names[i].con_id,
123 clk_names[i].dev_id);
128 r8a7791_add_dt_devices();
129 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
131 koelsch_add_du_device();
134 static const char * const koelsch_boards_compat_dt[] __initconst = {
136 "renesas,koelsch-reference",
140 DT_MACHINE_START(KOELSCH_DT, "koelsch")
141 .smp = smp_ops(r8a7791_smp_ops),
142 .init_early = r8a7791_init_early,
143 .init_time = rcar_gen2_timer_init,
144 .init_machine = koelsch_add_standard_devices,
145 .init_late = shmobile_init_late,
146 .dt_compat = koelsch_boards_compat_dt,