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