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 <linux/interrupt.h>
24 #include <linux/usb/r8a66597.h>
25 #include <linux/usb/m66592.h>
26 #include <net/ax88796.h>
27 #include <asm/machvec.h>
28 #include <mach/highlander.h>
29 #include <asm/clock.h>
30 #include <asm/heartbeat.h>
31 #include <asm/io.h>
32 #include <asm/io_trapped.h>
33 
34 static struct r8a66597_platdata r8a66597_data = {
35 	.xtal = R8A66597_PLATDATA_XTAL_12MHZ,
36 	.vif = 1,
37 };
38 
39 static struct resource r8a66597_usb_host_resources[] = {
40 	[0] = {
41 		.start	= 0xA4200000,
42 		.end	= 0xA42000FF,
43 		.flags	= IORESOURCE_MEM,
44 	},
45 	[1] = {
46 		.start	= IRQ_EXT1,		/* irq number */
47 		.end	= IRQ_EXT1,
48 		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
49 	},
50 };
51 
52 static struct platform_device r8a66597_usb_host_device = {
53 	.name		= "r8a66597_hcd",
54 	.id		= -1,
55 	.dev = {
56 		.dma_mask		= NULL,		/* don't use dma */
57 		.coherent_dma_mask	= 0xffffffff,
58 		.platform_data		= &r8a66597_data,
59 	},
60 	.num_resources	= ARRAY_SIZE(r8a66597_usb_host_resources),
61 	.resource	= r8a66597_usb_host_resources,
62 };
63 
64 static struct m66592_platdata usbf_platdata = {
65 	.xtal = M66592_PLATDATA_XTAL_24MHZ,
66 	.vif = 1,
67 };
68 
69 static struct resource m66592_usb_peripheral_resources[] = {
70 	[0] = {
71 		.name	= "m66592_udc",
72 		.start	= 0xb0000000,
73 		.end	= 0xb00000FF,
74 		.flags	= IORESOURCE_MEM,
75 	},
76 	[1] = {
77 		.name	= "m66592_udc",
78 		.start	= IRQ_EXT4,		/* irq number */
79 		.end	= IRQ_EXT4,
80 		.flags	= IORESOURCE_IRQ,
81 	},
82 };
83 
84 static struct platform_device m66592_usb_peripheral_device = {
85 	.name		= "m66592_udc",
86 	.id		= -1,
87 	.dev = {
88 		.dma_mask		= NULL,		/* don't use dma */
89 		.coherent_dma_mask	= 0xffffffff,
90 		.platform_data		= &usbf_platdata,
91 	},
92 	.num_resources	= ARRAY_SIZE(m66592_usb_peripheral_resources),
93 	.resource	= m66592_usb_peripheral_resources,
94 };
95 
96 static struct resource cf_ide_resources[] = {
97 	[0] = {
98 		.start	= PA_AREA5_IO + 0x1000,
99 		.end	= PA_AREA5_IO + 0x1000 + 0x08 - 1,
100 		.flags	= IORESOURCE_MEM,
101 	},
102 	[1] = {
103 		.start	= PA_AREA5_IO + 0x80c,
104 		.end	= PA_AREA5_IO + 0x80c + 0x16 - 1,
105 		.flags	= IORESOURCE_MEM,
106 	},
107 	[2] = {
108 		.start	= IRQ_CF,
109 		.flags	= IORESOURCE_IRQ,
110 	},
111 };
112 
113 static struct pata_platform_info pata_info = {
114 	.ioport_shift	= 1,
115 };
116 
117 static struct platform_device cf_ide_device  = {
118 	.name		= "pata_platform",
119 	.id		= -1,
120 	.num_resources	= ARRAY_SIZE(cf_ide_resources),
121 	.resource	= cf_ide_resources,
122 	.dev	= {
123 		.platform_data	= &pata_info,
124 	},
125 };
126 
127 static struct resource heartbeat_resources[] = {
128 	[0] = {
129 		.start	= PA_OBLED,
130 		.end	= PA_OBLED,
131 		.flags	= IORESOURCE_MEM,
132 	},
133 };
134 
135 #ifndef CONFIG_SH_R7785RP
136 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
137 
138 static struct heartbeat_data heartbeat_data = {
139 	.bit_pos	= heartbeat_bit_pos,
140 	.nr_bits	= ARRAY_SIZE(heartbeat_bit_pos),
141 };
142 #endif
143 
144 static struct platform_device heartbeat_device = {
145 	.name		= "heartbeat",
146 	.id		= -1,
147 
148 	/* R7785RP has a slightly more sensible FPGA.. */
149 #ifndef CONFIG_SH_R7785RP
150 	.dev	= {
151 		.platform_data	= &heartbeat_data,
152 	},
153 #endif
154 	.num_resources	= ARRAY_SIZE(heartbeat_resources),
155 	.resource	= heartbeat_resources,
156 };
157 
158 static struct ax_plat_data ax88796_platdata = {
159 	.flags          = AXFLG_HAS_93CX6,
160 	.wordlength     = 2,
161 	.dcr_val        = 0x1,
162 	.rcr_val        = 0x40,
163 };
164 
165 static struct resource ax88796_resources[] = {
166 	{
167 #ifdef CONFIG_SH_R7780RP
168 		.start  = 0xa5800400,
169 		.end    = 0xa5800400 + (0x20 * 0x2) - 1,
170 #else
171 		.start  = 0xa4100400,
172 		.end    = 0xa4100400 + (0x20 * 0x2) - 1,
173 #endif
174 		.flags  = IORESOURCE_MEM,
175 	},
176 	{
177 		.start  = IRQ_AX88796,
178 		.end    = IRQ_AX88796,
179 		.flags  = IORESOURCE_IRQ,
180 	},
181 };
182 
183 static struct platform_device ax88796_device = {
184 	.name           = "ax88796",
185 	.id             = 0,
186 
187 	.dev    = {
188 		.platform_data = &ax88796_platdata,
189 	},
190 
191 	.num_resources  = ARRAY_SIZE(ax88796_resources),
192 	.resource       = ax88796_resources,
193 };
194 
195 static struct mtd_partition nor_flash_partitions[] = {
196 	{
197 		.name		= "loader",
198 		.offset		= 0x00000000,
199 		.size		= 512 * 1024,
200 	},
201 	{
202 		.name		= "bootenv",
203 		.offset		= MTDPART_OFS_APPEND,
204 		.size		= 512 * 1024,
205 	},
206 	{
207 		.name		= "kernel",
208 		.offset		= MTDPART_OFS_APPEND,
209 		.size		= 4 * 1024 * 1024,
210 	},
211 	{
212 		.name		= "data",
213 		.offset		= MTDPART_OFS_APPEND,
214 		.size		= MTDPART_SIZ_FULL,
215 	},
216 };
217 
218 static struct physmap_flash_data nor_flash_data = {
219 	.width		= 4,
220 	.parts		= nor_flash_partitions,
221 	.nr_parts	= ARRAY_SIZE(nor_flash_partitions),
222 };
223 
224 /* This config is flash board for mass production. */
225 static struct resource nor_flash_resources[] = {
226 	[0]	= {
227 		.start	= PA_NORFLASH_ADDR,
228 		.end	= PA_NORFLASH_ADDR + PA_NORFLASH_SIZE - 1,
229 		.flags	= IORESOURCE_MEM,
230 	}
231 };
232 
233 static struct platform_device nor_flash_device = {
234 	.name		= "physmap-flash",
235 	.dev		= {
236 		.platform_data	= &nor_flash_data,
237 	},
238 	.num_resources	= ARRAY_SIZE(nor_flash_resources),
239 	.resource	= nor_flash_resources,
240 };
241 
242 static struct resource smbus_resources[] = {
243 	[0] = {
244 		.start	= PA_SMCR,
245 		.end	= PA_SMCR + 0x100 - 1,
246 		.flags	= IORESOURCE_MEM,
247 	},
248 	[1] = {
249 		.start	= IRQ_SMBUS,
250 		.end	= IRQ_SMBUS,
251 		.flags	= IORESOURCE_IRQ,
252 	},
253 };
254 
255 static struct platform_device smbus_device = {
256 	.name		= "i2c-highlander",
257 	.id		= 0,
258 	.num_resources	= ARRAY_SIZE(smbus_resources),
259 	.resource	= smbus_resources,
260 };
261 
262 static struct i2c_board_info __initdata highlander_i2c_devices[] = {
263 	{
264 		I2C_BOARD_INFO("r2025sd", 0x32),
265 	},
266 };
267 
268 static struct platform_device *r7780rp_devices[] __initdata = {
269 	&r8a66597_usb_host_device,
270 	&m66592_usb_peripheral_device,
271 	&heartbeat_device,
272 	&smbus_device,
273 	&nor_flash_device,
274 #ifndef CONFIG_SH_R7780RP
275 	&ax88796_device,
276 #endif
277 };
278 
279 /*
280  * The CF is connected using a 16-bit bus where 8-bit operations are
281  * unsupported. The linux ata driver is however using 8-bit operations, so
282  * insert a trapped io filter to convert 8-bit operations into 16-bit.
283  */
284 static struct trapped_io cf_trapped_io = {
285 	.resource		= cf_ide_resources,
286 	.num_resources		= 2,
287 	.minimum_bus_width	= 16,
288 };
289 
290 static int __init r7780rp_devices_setup(void)
291 {
292 	int ret = 0;
293 
294 #ifndef CONFIG_SH_R7780RP
295 	if (register_trapped_io(&cf_trapped_io) == 0)
296 		ret |= platform_device_register(&cf_ide_device);
297 #endif
298 
299 	ret |= platform_add_devices(r7780rp_devices,
300 				    ARRAY_SIZE(r7780rp_devices));
301 
302 	ret |= i2c_register_board_info(0, highlander_i2c_devices,
303 				       ARRAY_SIZE(highlander_i2c_devices));
304 
305 	return ret;
306 }
307 device_initcall(r7780rp_devices_setup);
308 
309 /*
310  * Platform specific clocks
311  */
312 static int ivdr_clk_enable(struct clk *clk)
313 {
314 	ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
315 	return 0;
316 }
317 
318 static void ivdr_clk_disable(struct clk *clk)
319 {
320 	ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
321 }
322 
323 static struct clk_ops ivdr_clk_ops = {
324 	.enable		= ivdr_clk_enable,
325 	.disable	= ivdr_clk_disable,
326 };
327 
328 static struct clk ivdr_clk = {
329 	.name		= "ivdr_clk",
330 	.ops		= &ivdr_clk_ops,
331 };
332 
333 static struct clk *r7780rp_clocks[] = {
334 	&ivdr_clk,
335 };
336 
337 static void r7780rp_power_off(void)
338 {
339 	if (mach_is_r7780mp() || mach_is_r7785rp())
340 		ctrl_outw(0x0001, PA_POFF);
341 }
342 
343 /*
344  * Initialize the board
345  */
346 static void __init highlander_setup(char **cmdline_p)
347 {
348 	u16 ver = ctrl_inw(PA_VERREG);
349 	int i;
350 
351 	printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
352 			 mach_is_r7780rp() ? "R7780RP-1" :
353 			 mach_is_r7780mp() ? "R7780MP"	 :
354 					     "R7785RP");
355 
356 	printk(KERN_INFO "Board version: %d (revision %d), "
357 			 "FPGA version: %d (revision %d)\n",
358 			 (ver >> 12) & 0xf, (ver >> 8) & 0xf,
359 			 (ver >>  4) & 0xf, ver & 0xf);
360 
361 	highlander_plat_pinmux_setup();
362 
363 	/*
364 	 * Enable the important clocks right away..
365 	 */
366 	for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
367 		struct clk *clk = r7780rp_clocks[i];
368 
369 		clk_register(clk);
370 		clk_enable(clk);
371 	}
372 
373 	ctrl_outw(0x0000, PA_OBLED);	/* Clear LED. */
374 
375 	if (mach_is_r7780rp())
376 		ctrl_outw(0x0001, PA_SDPOW);	/* SD Power ON */
377 
378 	ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);	/* Si13112 */
379 
380 	pm_power_off = r7780rp_power_off;
381 }
382 
383 static unsigned char irl2irq[HL_NR_IRL];
384 
385 static int highlander_irq_demux(int irq)
386 {
387 	if (irq >= HL_NR_IRL || irq < 0 || !irl2irq[irq])
388 		return irq;
389 
390 	return irl2irq[irq];
391 }
392 
393 static void __init highlander_init_irq(void)
394 {
395 	unsigned char *ucp = highlander_plat_irq_setup();
396 
397 	if (ucp) {
398 		plat_irq_setup_pins(IRQ_MODE_IRL3210);
399 		memcpy(irl2irq, ucp, HL_NR_IRL);
400 	}
401 }
402 
403 /*
404  * The Machine Vector
405  */
406 static struct sh_machine_vector mv_highlander __initmv = {
407 	.mv_name		= "Highlander",
408 	.mv_setup		= highlander_setup,
409 	.mv_init_irq		= highlander_init_irq,
410 	.mv_irq_demux		= highlander_irq_demux,
411 };
412