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