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 void ivdr_clk_enable(struct clk *clk)
300 {
301 	ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
302 }
303 
304 static void ivdr_clk_disable(struct clk *clk)
305 {
306 	ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
307 }
308 
309 static struct clk_ops ivdr_clk_ops = {
310 	.enable		= ivdr_clk_enable,
311 	.disable	= ivdr_clk_disable,
312 };
313 
314 static struct clk ivdr_clk = {
315 	.name		= "ivdr_clk",
316 	.ops		= &ivdr_clk_ops,
317 };
318 
319 static struct clk *r7780rp_clocks[] = {
320 	&ivdr_clk,
321 };
322 
323 static void r7780rp_power_off(void)
324 {
325 	if (mach_is_r7780mp() || mach_is_r7785rp())
326 		ctrl_outw(0x0001, PA_POFF);
327 }
328 
329 /*
330  * Initialize the board
331  */
332 static void __init highlander_setup(char **cmdline_p)
333 {
334 	u16 ver = ctrl_inw(PA_VERREG);
335 	int i;
336 
337 	printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
338 			 mach_is_r7780rp() ? "R7780RP-1" :
339 			 mach_is_r7780mp() ? "R7780MP"	 :
340 					     "R7785RP");
341 
342 	printk(KERN_INFO "Board version: %d (revision %d), "
343 			 "FPGA version: %d (revision %d)\n",
344 			 (ver >> 12) & 0xf, (ver >> 8) & 0xf,
345 			 (ver >>  4) & 0xf, ver & 0xf);
346 
347 	highlander_plat_pinmux_setup();
348 
349 	/*
350 	 * Enable the important clocks right away..
351 	 */
352 	for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
353 		struct clk *clk = r7780rp_clocks[i];
354 
355 		clk_register(clk);
356 		clk_enable(clk);
357 	}
358 
359 	ctrl_outw(0x0000, PA_OBLED);	/* Clear LED. */
360 
361 	if (mach_is_r7780rp())
362 		ctrl_outw(0x0001, PA_SDPOW);	/* SD Power ON */
363 
364 	ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);	/* Si13112 */
365 
366 	pm_power_off = r7780rp_power_off;
367 }
368 
369 static unsigned char irl2irq[HL_NR_IRL];
370 
371 static int highlander_irq_demux(int irq)
372 {
373 	if (irq >= HL_NR_IRL || !irl2irq[irq])
374 		return irq;
375 
376 	return irl2irq[irq];
377 }
378 
379 static void __init highlander_init_irq(void)
380 {
381 	unsigned char *ucp = highlander_plat_irq_setup();
382 
383 	if (ucp) {
384 		plat_irq_setup_pins(IRQ_MODE_IRL3210);
385 		memcpy(irl2irq, ucp, HL_NR_IRL);
386 	}
387 }
388 
389 /*
390  * The Machine Vector
391  */
392 static struct sh_machine_vector mv_highlander __initmv = {
393 	.mv_name		= "Highlander",
394 	.mv_setup		= highlander_setup,
395 	.mv_init_irq		= highlander_init_irq,
396 	.mv_irq_demux		= highlander_irq_demux,
397 };
398