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[linux-2.6] / arch / sh / boards / renesas / r7780rp / setup.c
1 /*
2  * arch/sh/boards/renesas/r7780rp/setup.c
3  *
4  * Renesas Solutions Highlander Support.
5  *
6  * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
7  * Copyright (C) 2005 - 2008 Paul Mundt
8  *
9  * This contains support for the R7780RP-1, R7780MP, and R7785RP
10  * Highlander modules.
11  *
12  * This file is subject to the terms and conditions of the GNU General Public
13  * License.  See the file "COPYING" in the main directory of this archive
14  * for more details.
15  */
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/ata_platform.h>
19 #include <linux/types.h>
20 #include <linux/i2c.h>
21 #include <net/ax88796.h>
22 #include <asm/machvec.h>
23 #include <asm/r7780rp.h>
24 #include <asm/clock.h>
25 #include <asm/heartbeat.h>
26 #include <asm/io.h>
27 #include <asm/io_trapped.h>
28
29 static struct resource r8a66597_usb_host_resources[] = {
30         [0] = {
31                 .name   = "r8a66597_hcd",
32                 .start  = 0xA4200000,
33                 .end    = 0xA42000FF,
34                 .flags  = IORESOURCE_MEM,
35         },
36         [1] = {
37                 .name   = "r8a66597_hcd",
38                 .start  = IRQ_EXT1,             /* irq number */
39                 .end    = IRQ_EXT1,
40                 .flags  = IORESOURCE_IRQ,
41         },
42 };
43
44 static struct platform_device r8a66597_usb_host_device = {
45         .name           = "r8a66597_hcd",
46         .id             = -1,
47         .dev = {
48                 .dma_mask               = NULL,         /* don't use dma */
49                 .coherent_dma_mask      = 0xffffffff,
50         },
51         .num_resources  = ARRAY_SIZE(r8a66597_usb_host_resources),
52         .resource       = r8a66597_usb_host_resources,
53 };
54
55 static struct resource m66592_usb_peripheral_resources[] = {
56         [0] = {
57                 .name   = "m66592_udc",
58                 .start  = 0xb0000000,
59                 .end    = 0xb00000FF,
60                 .flags  = IORESOURCE_MEM,
61         },
62         [1] = {
63                 .name   = "m66592_udc",
64                 .start  = IRQ_EXT4,             /* irq number */
65                 .end    = IRQ_EXT4,
66                 .flags  = IORESOURCE_IRQ,
67         },
68 };
69
70 static struct platform_device m66592_usb_peripheral_device = {
71         .name           = "m66592_udc",
72         .id             = -1,
73         .dev = {
74                 .dma_mask               = NULL,         /* don't use dma */
75                 .coherent_dma_mask      = 0xffffffff,
76         },
77         .num_resources  = ARRAY_SIZE(m66592_usb_peripheral_resources),
78         .resource       = m66592_usb_peripheral_resources,
79 };
80
81 static struct resource cf_ide_resources[] = {
82         [0] = {
83                 .start  = PA_AREA5_IO + 0x1000,
84                 .end    = PA_AREA5_IO + 0x1000 + 0x08 - 1,
85                 .flags  = IORESOURCE_MEM,
86         },
87         [1] = {
88                 .start  = PA_AREA5_IO + 0x80c,
89                 .end    = PA_AREA5_IO + 0x80c + 0x16 - 1,
90                 .flags  = IORESOURCE_MEM,
91         },
92         [2] = {
93                 .start  = IRQ_CF,
94                 .flags  = IORESOURCE_IRQ,
95         },
96 };
97
98 static struct pata_platform_info pata_info = {
99         .ioport_shift   = 1,
100 };
101
102 static struct platform_device cf_ide_device  = {
103         .name           = "pata_platform",
104         .id             = -1,
105         .num_resources  = ARRAY_SIZE(cf_ide_resources),
106         .resource       = cf_ide_resources,
107         .dev    = {
108                 .platform_data  = &pata_info,
109         },
110 };
111
112 static struct resource heartbeat_resources[] = {
113         [0] = {
114                 .start  = PA_OBLED,
115                 .end    = PA_OBLED,
116                 .flags  = IORESOURCE_MEM,
117         },
118 };
119
120 #ifndef CONFIG_SH_R7785RP
121 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
122
123 static struct heartbeat_data heartbeat_data = {
124         .bit_pos        = heartbeat_bit_pos,
125         .nr_bits        = ARRAY_SIZE(heartbeat_bit_pos),
126 };
127 #endif
128
129 static struct platform_device heartbeat_device = {
130         .name           = "heartbeat",
131         .id             = -1,
132
133         /* R7785RP has a slightly more sensible FPGA.. */
134 #ifndef CONFIG_SH_R7785RP
135         .dev    = {
136                 .platform_data  = &heartbeat_data,
137         },
138 #endif
139         .num_resources  = ARRAY_SIZE(heartbeat_resources),
140         .resource       = heartbeat_resources,
141 };
142
143 static struct ax_plat_data ax88796_platdata = {
144         .flags          = AXFLG_HAS_93CX6,
145         .wordlength     = 2,
146         .dcr_val        = 0x1,
147         .rcr_val        = 0x40,
148 };
149
150 static struct resource ax88796_resources[] = {
151         {
152 #ifdef CONFIG_SH_R7780RP
153                 .start  = 0xa5800400,
154                 .end    = 0xa5800400 + (0x20 * 0x2) - 1,
155 #else
156                 .start  = 0xa4100400,
157                 .end    = 0xa4100400 + (0x20 * 0x2) - 1,
158 #endif
159                 .flags  = IORESOURCE_MEM,
160         },
161         {
162                 .start  = IRQ_AX88796,
163                 .end    = IRQ_AX88796,
164                 .flags  = IORESOURCE_IRQ,
165         },
166 };
167
168 static struct platform_device ax88796_device = {
169         .name           = "ax88796",
170         .id             = 0,
171
172         .dev    = {
173                 .platform_data = &ax88796_platdata,
174         },
175
176         .num_resources  = ARRAY_SIZE(ax88796_resources),
177         .resource       = ax88796_resources,
178 };
179
180 static struct resource smbus_resources[] = {
181         [0] = {
182                 .start  = PA_SMCR,
183                 .end    = PA_SMCR + 0x100 - 1,
184                 .flags  = IORESOURCE_MEM,
185         },
186         [1] = {
187                 .start  = IRQ_SMBUS,
188                 .end    = IRQ_SMBUS,
189                 .flags  = IORESOURCE_IRQ,
190         },
191 };
192
193 static struct platform_device smbus_device = {
194         .name           = "i2c-highlander",
195         .id             = 0,
196         .num_resources  = ARRAY_SIZE(smbus_resources),
197         .resource       = smbus_resources,
198 };
199
200 static struct i2c_board_info __initdata highlander_i2c_devices[] = {
201         {
202                 I2C_BOARD_INFO("r2025sd", 0x32),
203         },
204 };
205
206 static struct platform_device *r7780rp_devices[] __initdata = {
207         &r8a66597_usb_host_device,
208         &m66592_usb_peripheral_device,
209         &heartbeat_device,
210         &smbus_device,
211 #ifndef CONFIG_SH_R7780RP
212         &ax88796_device,
213 #endif
214 };
215
216 /*
217  * The CF is connected using a 16-bit bus where 8-bit operations are
218  * unsupported. The linux ata driver is however using 8-bit operations, so
219  * insert a trapped io filter to convert 8-bit operations into 16-bit.
220  */
221 static struct trapped_io cf_trapped_io = {
222         .resource               = cf_ide_resources,
223         .num_resources          = 2,
224         .minimum_bus_width      = 16,
225 };
226
227 static int __init r7780rp_devices_setup(void)
228 {
229         int ret = 0;
230
231 #ifndef CONFIG_SH_R7780RP
232         if (register_trapped_io(&cf_trapped_io) == 0)
233                 ret |= platform_device_register(&cf_ide_device);
234 #endif
235
236         ret |= platform_add_devices(r7780rp_devices,
237                                     ARRAY_SIZE(r7780rp_devices));
238
239         ret |= i2c_register_board_info(0, highlander_i2c_devices,
240                                        ARRAY_SIZE(highlander_i2c_devices));
241
242         return ret;
243 }
244 device_initcall(r7780rp_devices_setup);
245
246 /*
247  * Platform specific clocks
248  */
249 static void ivdr_clk_enable(struct clk *clk)
250 {
251         ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
252 }
253
254 static void ivdr_clk_disable(struct clk *clk)
255 {
256         ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
257 }
258
259 static struct clk_ops ivdr_clk_ops = {
260         .enable         = ivdr_clk_enable,
261         .disable        = ivdr_clk_disable,
262 };
263
264 static struct clk ivdr_clk = {
265         .name           = "ivdr_clk",
266         .ops            = &ivdr_clk_ops,
267 };
268
269 static struct clk *r7780rp_clocks[] = {
270         &ivdr_clk,
271 };
272
273 static void r7780rp_power_off(void)
274 {
275         if (mach_is_r7780mp() || mach_is_r7785rp())
276                 ctrl_outw(0x0001, PA_POFF);
277 }
278
279 /*
280  * Initialize the board
281  */
282 static void __init highlander_setup(char **cmdline_p)
283 {
284         u16 ver = ctrl_inw(PA_VERREG);
285         int i;
286
287         printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
288                          mach_is_r7780rp() ? "R7780RP-1" :
289                          mach_is_r7780mp() ? "R7780MP"   :
290                                              "R7785RP");
291
292         printk(KERN_INFO "Board version: %d (revision %d), "
293                          "FPGA version: %d (revision %d)\n",
294                          (ver >> 12) & 0xf, (ver >> 8) & 0xf,
295                          (ver >>  4) & 0xf, ver & 0xf);
296
297         /*
298          * Enable the important clocks right away..
299          */
300         for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
301                 struct clk *clk = r7780rp_clocks[i];
302
303                 clk_register(clk);
304                 clk_enable(clk);
305         }
306
307         ctrl_outw(0x0000, PA_OBLED);    /* Clear LED. */
308
309         if (mach_is_r7780rp())
310                 ctrl_outw(0x0001, PA_SDPOW);    /* SD Power ON */
311
312         ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);     /* Si13112 */
313
314         pm_power_off = r7780rp_power_off;
315 }
316
317 static unsigned char irl2irq[HL_NR_IRL];
318
319 int highlander_irq_demux(int irq)
320 {
321         if (irq >= HL_NR_IRL || !irl2irq[irq])
322                 return irq;
323
324         return irl2irq[irq];
325 }
326
327 void __init highlander_init_irq(void)
328 {
329         unsigned char *ucp = NULL;
330
331         do {
332 #ifdef CONFIG_SH_R7780MP
333                 ucp = highlander_init_irq_r7780mp();
334                 if (ucp)
335                         break;
336 #endif
337 #ifdef CONFIG_SH_R7785RP
338                 ucp = highlander_init_irq_r7785rp();
339                 if (ucp)
340                         break;
341 #endif
342 #ifdef CONFIG_SH_R7780RP
343                 ucp = highlander_init_irq_r7780rp();
344                 if (ucp)
345                         break;
346 #endif
347         } while (0);
348
349         if (ucp) {
350                 plat_irq_setup_pins(IRQ_MODE_IRL3210);
351                 memcpy(irl2irq, ucp, HL_NR_IRL);
352         }
353 }
354
355 /*
356  * The Machine Vector
357  */
358 static struct sh_machine_vector mv_highlander __initmv = {
359         .mv_name                = "Highlander",
360         .mv_setup               = highlander_setup,
361         .mv_init_irq            = highlander_init_irq,
362         .mv_irq_demux           = highlander_irq_demux,
363 };