sh: turn off irqs when disabling CMT/TMU timers
[sfrench/cifs-2.6.git] / arch / sh / boards / mach-highlander / 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/mtd/physmap.h>
21 #include <linux/i2c.h>
22 #include <linux/irq.h>
23 #include <net/ax88796.h>
24 #include <asm/machvec.h>
25 #include <mach/highlander.h>
26 #include <asm/clock.h>
27 #include <asm/heartbeat.h>
28 #include <asm/io.h>
29 #include <asm/io_trapped.h>
30
31 static struct resource r8a66597_usb_host_resources[] = {
32         [0] = {
33                 .name   = "r8a66597_hcd",
34                 .start  = 0xA4200000,
35                 .end    = 0xA42000FF,
36                 .flags  = IORESOURCE_MEM,
37         },
38         [1] = {
39                 .name   = "r8a66597_hcd",
40                 .start  = IRQ_EXT1,             /* irq number */
41                 .end    = IRQ_EXT1,
42                 .flags  = IORESOURCE_IRQ,
43         },
44 };
45
46 static struct platform_device r8a66597_usb_host_device = {
47         .name           = "r8a66597_hcd",
48         .id             = -1,
49         .dev = {
50                 .dma_mask               = NULL,         /* don't use dma */
51                 .coherent_dma_mask      = 0xffffffff,
52         },
53         .num_resources  = ARRAY_SIZE(r8a66597_usb_host_resources),
54         .resource       = r8a66597_usb_host_resources,
55 };
56
57 static struct resource m66592_usb_peripheral_resources[] = {
58         [0] = {
59                 .name   = "m66592_udc",
60                 .start  = 0xb0000000,
61                 .end    = 0xb00000FF,
62                 .flags  = IORESOURCE_MEM,
63         },
64         [1] = {
65                 .name   = "m66592_udc",
66                 .start  = IRQ_EXT4,             /* irq number */
67                 .end    = IRQ_EXT4,
68                 .flags  = IORESOURCE_IRQ,
69         },
70 };
71
72 static struct platform_device m66592_usb_peripheral_device = {
73         .name           = "m66592_udc",
74         .id             = -1,
75         .dev = {
76                 .dma_mask               = NULL,         /* don't use dma */
77                 .coherent_dma_mask      = 0xffffffff,
78         },
79         .num_resources  = ARRAY_SIZE(m66592_usb_peripheral_resources),
80         .resource       = m66592_usb_peripheral_resources,
81 };
82
83 static struct resource cf_ide_resources[] = {
84         [0] = {
85                 .start  = PA_AREA5_IO + 0x1000,
86                 .end    = PA_AREA5_IO + 0x1000 + 0x08 - 1,
87                 .flags  = IORESOURCE_MEM,
88         },
89         [1] = {
90                 .start  = PA_AREA5_IO + 0x80c,
91                 .end    = PA_AREA5_IO + 0x80c + 0x16 - 1,
92                 .flags  = IORESOURCE_MEM,
93         },
94         [2] = {
95                 .start  = IRQ_CF,
96                 .flags  = IORESOURCE_IRQ,
97         },
98 };
99
100 static struct pata_platform_info pata_info = {
101         .ioport_shift   = 1,
102 };
103
104 static struct platform_device cf_ide_device  = {
105         .name           = "pata_platform",
106         .id             = -1,
107         .num_resources  = ARRAY_SIZE(cf_ide_resources),
108         .resource       = cf_ide_resources,
109         .dev    = {
110                 .platform_data  = &pata_info,
111         },
112 };
113
114 static struct resource heartbeat_resources[] = {
115         [0] = {
116                 .start  = PA_OBLED,
117                 .end    = PA_OBLED,
118                 .flags  = IORESOURCE_MEM,
119         },
120 };
121
122 #ifndef CONFIG_SH_R7785RP
123 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
124
125 static struct heartbeat_data heartbeat_data = {
126         .bit_pos        = heartbeat_bit_pos,
127         .nr_bits        = ARRAY_SIZE(heartbeat_bit_pos),
128 };
129 #endif
130
131 static struct platform_device heartbeat_device = {
132         .name           = "heartbeat",
133         .id             = -1,
134
135         /* R7785RP has a slightly more sensible FPGA.. */
136 #ifndef CONFIG_SH_R7785RP
137         .dev    = {
138                 .platform_data  = &heartbeat_data,
139         },
140 #endif
141         .num_resources  = ARRAY_SIZE(heartbeat_resources),
142         .resource       = heartbeat_resources,
143 };
144
145 static struct ax_plat_data ax88796_platdata = {
146         .flags          = AXFLG_HAS_93CX6,
147         .wordlength     = 2,
148         .dcr_val        = 0x1,
149         .rcr_val        = 0x40,
150 };
151
152 static struct resource ax88796_resources[] = {
153         {
154 #ifdef CONFIG_SH_R7780RP
155                 .start  = 0xa5800400,
156                 .end    = 0xa5800400 + (0x20 * 0x2) - 1,
157 #else
158                 .start  = 0xa4100400,
159                 .end    = 0xa4100400 + (0x20 * 0x2) - 1,
160 #endif
161                 .flags  = IORESOURCE_MEM,
162         },
163         {
164                 .start  = IRQ_AX88796,
165                 .end    = IRQ_AX88796,
166                 .flags  = IORESOURCE_IRQ,
167         },
168 };
169
170 static struct platform_device ax88796_device = {
171         .name           = "ax88796",
172         .id             = 0,
173
174         .dev    = {
175                 .platform_data = &ax88796_platdata,
176         },
177
178         .num_resources  = ARRAY_SIZE(ax88796_resources),
179         .resource       = ax88796_resources,
180 };
181
182 static struct mtd_partition nor_flash_partitions[] = {
183         {
184                 .name           = "loader",
185                 .offset         = 0x00000000,
186                 .size           = 512 * 1024,
187         },
188         {
189                 .name           = "bootenv",
190                 .offset         = MTDPART_OFS_APPEND,
191                 .size           = 512 * 1024,
192         },
193         {
194                 .name           = "kernel",
195                 .offset         = MTDPART_OFS_APPEND,
196                 .size           = 4 * 1024 * 1024,
197         },
198         {
199                 .name           = "data",
200                 .offset         = MTDPART_OFS_APPEND,
201                 .size           = MTDPART_SIZ_FULL,
202         },
203 };
204
205 static struct physmap_flash_data nor_flash_data = {
206         .width          = 4,
207         .parts          = nor_flash_partitions,
208         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
209 };
210
211 /* This config is flash board for mass production. */
212 static struct resource nor_flash_resources[] = {
213         [0]     = {
214                 .start  = PA_NORFLASH_ADDR,
215                 .end    = PA_NORFLASH_ADDR + PA_NORFLASH_SIZE - 1,
216                 .flags  = IORESOURCE_MEM,
217         }
218 };
219
220 static struct platform_device nor_flash_device = {
221         .name           = "physmap-flash",
222         .dev            = {
223                 .platform_data  = &nor_flash_data,
224         },
225         .num_resources  = ARRAY_SIZE(nor_flash_resources),
226         .resource       = nor_flash_resources,
227 };
228
229 static struct resource smbus_resources[] = {
230         [0] = {
231                 .start  = PA_SMCR,
232                 .end    = PA_SMCR + 0x100 - 1,
233                 .flags  = IORESOURCE_MEM,
234         },
235         [1] = {
236                 .start  = IRQ_SMBUS,
237                 .end    = IRQ_SMBUS,
238                 .flags  = IORESOURCE_IRQ,
239         },
240 };
241
242 static struct platform_device smbus_device = {
243         .name           = "i2c-highlander",
244         .id             = 0,
245         .num_resources  = ARRAY_SIZE(smbus_resources),
246         .resource       = smbus_resources,
247 };
248
249 static struct i2c_board_info __initdata highlander_i2c_devices[] = {
250         {
251                 I2C_BOARD_INFO("r2025sd", 0x32),
252         },
253 };
254
255 static struct platform_device *r7780rp_devices[] __initdata = {
256         &r8a66597_usb_host_device,
257         &m66592_usb_peripheral_device,
258         &heartbeat_device,
259         &smbus_device,
260         &nor_flash_device,
261 #ifndef CONFIG_SH_R7780RP
262         &ax88796_device,
263 #endif
264 };
265
266 /*
267  * The CF is connected using a 16-bit bus where 8-bit operations are
268  * unsupported. The linux ata driver is however using 8-bit operations, so
269  * insert a trapped io filter to convert 8-bit operations into 16-bit.
270  */
271 static struct trapped_io cf_trapped_io = {
272         .resource               = cf_ide_resources,
273         .num_resources          = 2,
274         .minimum_bus_width      = 16,
275 };
276
277 static int __init r7780rp_devices_setup(void)
278 {
279         int ret = 0;
280
281 #ifndef CONFIG_SH_R7780RP
282         if (register_trapped_io(&cf_trapped_io) == 0)
283                 ret |= platform_device_register(&cf_ide_device);
284 #endif
285
286         ret |= platform_add_devices(r7780rp_devices,
287                                     ARRAY_SIZE(r7780rp_devices));
288
289         ret |= i2c_register_board_info(0, highlander_i2c_devices,
290                                        ARRAY_SIZE(highlander_i2c_devices));
291
292         return ret;
293 }
294 device_initcall(r7780rp_devices_setup);
295
296 /*
297  * Platform specific clocks
298  */
299 static int ivdr_clk_enable(struct clk *clk)
300 {
301         ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
302         return 0;
303 }
304
305 static void ivdr_clk_disable(struct clk *clk)
306 {
307         ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
308 }
309
310 static struct clk_ops ivdr_clk_ops = {
311         .enable         = ivdr_clk_enable,
312         .disable        = ivdr_clk_disable,
313 };
314
315 static struct clk ivdr_clk = {
316         .name           = "ivdr_clk",
317         .ops            = &ivdr_clk_ops,
318 };
319
320 static struct clk *r7780rp_clocks[] = {
321         &ivdr_clk,
322 };
323
324 static void r7780rp_power_off(void)
325 {
326         if (mach_is_r7780mp() || mach_is_r7785rp())
327                 ctrl_outw(0x0001, PA_POFF);
328 }
329
330 /*
331  * Initialize the board
332  */
333 static void __init highlander_setup(char **cmdline_p)
334 {
335         u16 ver = ctrl_inw(PA_VERREG);
336         int i;
337
338         printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
339                          mach_is_r7780rp() ? "R7780RP-1" :
340                          mach_is_r7780mp() ? "R7780MP"   :
341                                              "R7785RP");
342
343         printk(KERN_INFO "Board version: %d (revision %d), "
344                          "FPGA version: %d (revision %d)\n",
345                          (ver >> 12) & 0xf, (ver >> 8) & 0xf,
346                          (ver >>  4) & 0xf, ver & 0xf);
347
348         highlander_plat_pinmux_setup();
349
350         /*
351          * Enable the important clocks right away..
352          */
353         for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
354                 struct clk *clk = r7780rp_clocks[i];
355
356                 clk_register(clk);
357                 clk_enable(clk);
358         }
359
360         ctrl_outw(0x0000, PA_OBLED);    /* Clear LED. */
361
362         if (mach_is_r7780rp())
363                 ctrl_outw(0x0001, PA_SDPOW);    /* SD Power ON */
364
365         ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);     /* Si13112 */
366
367         pm_power_off = r7780rp_power_off;
368 }
369
370 static unsigned char irl2irq[HL_NR_IRL];
371
372 static int highlander_irq_demux(int irq)
373 {
374         if (irq >= HL_NR_IRL || !irl2irq[irq])
375                 return irq;
376
377         return irl2irq[irq];
378 }
379
380 static void __init highlander_init_irq(void)
381 {
382         unsigned char *ucp = highlander_plat_irq_setup();
383
384         if (ucp) {
385                 plat_irq_setup_pins(IRQ_MODE_IRL3210);
386                 memcpy(irl2irq, ucp, HL_NR_IRL);
387         }
388 }
389
390 /*
391  * The Machine Vector
392  */
393 static struct sh_machine_vector mv_highlander __initmv = {
394         .mv_name                = "Highlander",
395         .mv_setup               = highlander_setup,
396         .mv_init_irq            = highlander_init_irq,
397         .mv_irq_demux           = highlander_irq_demux,
398 };