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Magnus Dammf411fad2011-12-14 01:36:12 +09001/*
2 * r8a7779 processor support
3 *
4 * Copyright (C) 2011 Renesas Solutions Corp.
5 * Copyright (C) 2011 Magnus Damm
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#include <linux/kernel.h>
21#include <linux/init.h>
22#include <linux/interrupt.h>
23#include <linux/irq.h>
24#include <linux/platform_device.h>
25#include <linux/delay.h>
26#include <linux/input.h>
27#include <linux/io.h>
28#include <linux/serial_sci.h>
29#include <linux/sh_intc.h>
30#include <linux/sh_timer.h>
31#include <mach/hardware.h>
Rob Herring250a2722012-01-03 16:57:33 -060032#include <mach/irqs.h>
Magnus Dammf411fad2011-12-14 01:36:12 +090033#include <mach/r8a7779.h>
Magnus Damma662c082012-01-10 15:50:01 +090034#include <mach/common.h>
Magnus Dammf411fad2011-12-14 01:36:12 +090035#include <asm/mach-types.h>
36#include <asm/mach/arch.h>
Magnus Dammdf27a2d2012-03-06 17:37:01 +090037#include <asm/mach/time.h>
Magnus Damm3e353b872012-02-29 21:37:43 +090038#include <asm/mach/map.h>
Magnus Damm8bac13f2012-03-01 12:48:03 +090039#include <asm/hardware/cache-l2x0.h>
Magnus Damm3e353b872012-02-29 21:37:43 +090040
41static struct map_desc r8a7779_io_desc[] __initdata = {
42 /* 2M entity map for 0xf0000000 (MPCORE) */
43 {
44 .virtual = 0xf0000000,
45 .pfn = __phys_to_pfn(0xf0000000),
46 .length = SZ_2M,
47 .type = MT_DEVICE_NONSHARED
48 },
49 /* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
50 {
51 .virtual = 0xfe000000,
52 .pfn = __phys_to_pfn(0xfe000000),
53 .length = SZ_16M,
54 .type = MT_DEVICE_NONSHARED
55 },
56};
57
58void __init r8a7779_map_io(void)
59{
60 iotable_init(r8a7779_io_desc, ARRAY_SIZE(r8a7779_io_desc));
61}
Magnus Dammf411fad2011-12-14 01:36:12 +090062
63static struct plat_sci_port scif0_platform_data = {
64 .mapbase = 0xffe40000,
65 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
66 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
67 .scbrr_algo_id = SCBRR_ALGO_2,
68 .type = PORT_SCIF,
69 .irqs = { gic_spi(88), gic_spi(88),
70 gic_spi(88), gic_spi(88) },
71};
72
73static struct platform_device scif0_device = {
74 .name = "sh-sci",
75 .id = 0,
76 .dev = {
77 .platform_data = &scif0_platform_data,
78 },
79};
80
81static struct plat_sci_port scif1_platform_data = {
82 .mapbase = 0xffe41000,
83 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
84 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
85 .scbrr_algo_id = SCBRR_ALGO_2,
86 .type = PORT_SCIF,
87 .irqs = { gic_spi(89), gic_spi(89),
88 gic_spi(89), gic_spi(89) },
89};
90
91static struct platform_device scif1_device = {
92 .name = "sh-sci",
93 .id = 1,
94 .dev = {
95 .platform_data = &scif1_platform_data,
96 },
97};
98
99static struct plat_sci_port scif2_platform_data = {
100 .mapbase = 0xffe42000,
101 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
102 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
103 .scbrr_algo_id = SCBRR_ALGO_2,
104 .type = PORT_SCIF,
105 .irqs = { gic_spi(90), gic_spi(90),
106 gic_spi(90), gic_spi(90) },
107};
108
109static struct platform_device scif2_device = {
110 .name = "sh-sci",
111 .id = 2,
112 .dev = {
113 .platform_data = &scif2_platform_data,
114 },
115};
116
117static struct plat_sci_port scif3_platform_data = {
118 .mapbase = 0xffe43000,
119 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
120 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
121 .scbrr_algo_id = SCBRR_ALGO_2,
122 .type = PORT_SCIF,
123 .irqs = { gic_spi(91), gic_spi(91),
124 gic_spi(91), gic_spi(91) },
125};
126
127static struct platform_device scif3_device = {
128 .name = "sh-sci",
129 .id = 3,
130 .dev = {
131 .platform_data = &scif3_platform_data,
132 },
133};
134
135static struct plat_sci_port scif4_platform_data = {
136 .mapbase = 0xffe44000,
137 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
138 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
139 .scbrr_algo_id = SCBRR_ALGO_2,
140 .type = PORT_SCIF,
141 .irqs = { gic_spi(92), gic_spi(92),
142 gic_spi(92), gic_spi(92) },
143};
144
145static struct platform_device scif4_device = {
146 .name = "sh-sci",
147 .id = 4,
148 .dev = {
149 .platform_data = &scif4_platform_data,
150 },
151};
152
153static struct plat_sci_port scif5_platform_data = {
154 .mapbase = 0xffe45000,
155 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
156 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
157 .scbrr_algo_id = SCBRR_ALGO_2,
158 .type = PORT_SCIF,
159 .irqs = { gic_spi(93), gic_spi(93),
160 gic_spi(93), gic_spi(93) },
161};
162
163static struct platform_device scif5_device = {
164 .name = "sh-sci",
165 .id = 5,
166 .dev = {
167 .platform_data = &scif5_platform_data,
168 },
169};
170
171/* TMU */
172static struct sh_timer_config tmu00_platform_data = {
173 .name = "TMU00",
174 .channel_offset = 0x4,
175 .timer_bit = 0,
176 .clockevent_rating = 200,
177};
178
179static struct resource tmu00_resources[] = {
180 [0] = {
181 .name = "TMU00",
182 .start = 0xffd80008,
183 .end = 0xffd80013,
184 .flags = IORESOURCE_MEM,
185 },
186 [1] = {
187 .start = gic_spi(32),
188 .flags = IORESOURCE_IRQ,
189 },
190};
191
192static struct platform_device tmu00_device = {
193 .name = "sh_tmu",
194 .id = 0,
195 .dev = {
196 .platform_data = &tmu00_platform_data,
197 },
198 .resource = tmu00_resources,
199 .num_resources = ARRAY_SIZE(tmu00_resources),
200};
201
202static struct sh_timer_config tmu01_platform_data = {
203 .name = "TMU01",
204 .channel_offset = 0x10,
205 .timer_bit = 1,
206 .clocksource_rating = 200,
207};
208
209static struct resource tmu01_resources[] = {
210 [0] = {
211 .name = "TMU01",
212 .start = 0xffd80014,
213 .end = 0xffd8001f,
214 .flags = IORESOURCE_MEM,
215 },
216 [1] = {
217 .start = gic_spi(33),
218 .flags = IORESOURCE_IRQ,
219 },
220};
221
222static struct platform_device tmu01_device = {
223 .name = "sh_tmu",
224 .id = 1,
225 .dev = {
226 .platform_data = &tmu01_platform_data,
227 },
228 .resource = tmu01_resources,
229 .num_resources = ARRAY_SIZE(tmu01_resources),
230};
231
232static struct platform_device *r8a7779_early_devices[] __initdata = {
233 &scif0_device,
234 &scif1_device,
235 &scif2_device,
236 &scif3_device,
237 &scif4_device,
238 &scif5_device,
239 &tmu00_device,
240 &tmu01_device,
241};
242
243static struct platform_device *r8a7779_late_devices[] __initdata = {
244};
245
246void __init r8a7779_add_standard_devices(void)
247{
Magnus Damm8bac13f2012-03-01 12:48:03 +0900248#ifdef CONFIG_CACHE_L2X0
249 /* Early BRESP enable, Shared attribute override enable, 64K*16way */
Arnd Bergmanna6e24012012-03-14 01:05:42 +0100250 l2x0_init((void __iomem __force *)(0xf0100000), 0x40470000, 0x82000fff);
Magnus Damm8bac13f2012-03-01 12:48:03 +0900251#endif
Magnus Damma662c082012-01-10 15:50:01 +0900252 r8a7779_pm_init();
253
Rafael J. Wysocki45e5ca52012-08-07 01:14:14 +0200254 r8a7779_init_pm_domains();
Magnus Damma662c082012-01-10 15:50:01 +0900255
Magnus Dammf411fad2011-12-14 01:36:12 +0900256 platform_add_devices(r8a7779_early_devices,
257 ARRAY_SIZE(r8a7779_early_devices));
258 platform_add_devices(r8a7779_late_devices,
259 ARRAY_SIZE(r8a7779_late_devices));
260}
261
Magnus Dammb759bd12012-05-10 14:57:22 +0900262/* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
263void __init __weak r8a7779_register_twd(void) { }
264
Magnus Dammdf27a2d2012-03-06 17:37:01 +0900265static void __init r8a7779_earlytimer_init(void)
266{
267 r8a7779_clock_init();
268 shmobile_earlytimer_init();
Magnus Dammb759bd12012-05-10 14:57:22 +0900269 r8a7779_register_twd();
Magnus Dammdf27a2d2012-03-06 17:37:01 +0900270}
271
Magnus Dammf411fad2011-12-14 01:36:12 +0900272void __init r8a7779_add_early_devices(void)
273{
274 early_platform_add_devices(r8a7779_early_devices,
275 ARRAY_SIZE(r8a7779_early_devices));
Magnus Damm3e353b872012-02-29 21:37:43 +0900276
277 /* Early serial console setup is not included here due to
278 * memory map collisions. The SCIF serial ports in r8a7779
279 * are difficult to entity map 1:1 due to collision with the
280 * virtual memory range used by the coherent DMA code on ARM.
281 *
282 * Anyone wanting to debug early can remove UPF_IOREMAP from
283 * the sh-sci serial console platform data, adjust mapbase
284 * to a static M:N virt:phys mapping that needs to be added to
285 * the mappings passed with iotable_init() above.
286 *
287 * Then add a call to shmobile_setup_console() from this function.
288 *
289 * As a final step pass earlyprint=sh-sci.2,115200 on the kernel
290 * command line in case of the marzen board.
291 */
Magnus Dammdf27a2d2012-03-06 17:37:01 +0900292
293 /* override timer setup with soc-specific code */
294 shmobile_timer.init = r8a7779_earlytimer_init;
Magnus Dammf411fad2011-12-14 01:36:12 +0900295}