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 <net/ax88796.h>
22 #include <asm/machvec.h>
23 #include <asm/r7780rp.h>
24 #include <asm/clock.h>
25 #include <asm/heartbeat.h>
26 #include <asm/io.h>
27 #include <asm/io_trapped.h>
28 
29 static struct resource r8a66597_usb_host_resources[] = {
30 	[0] = {
31 		.name	= "r8a66597_hcd",
32 		.start	= 0xA4200000,
33 		.end	= 0xA42000FF,
34 		.flags	= IORESOURCE_MEM,
35 	},
36 	[1] = {
37 		.name	= "r8a66597_hcd",
38 		.start	= IRQ_EXT1,		/* irq number */
39 		.end	= IRQ_EXT1,
40 		.flags	= IORESOURCE_IRQ,
41 	},
42 };
43 
44 static struct platform_device r8a66597_usb_host_device = {
45 	.name		= "r8a66597_hcd",
46 	.id		= -1,
47 	.dev = {
48 		.dma_mask		= NULL,		/* don't use dma */
49 		.coherent_dma_mask	= 0xffffffff,
50 	},
51 	.num_resources	= ARRAY_SIZE(r8a66597_usb_host_resources),
52 	.resource	= r8a66597_usb_host_resources,
53 };
54 
55 static struct resource m66592_usb_peripheral_resources[] = {
56 	[0] = {
57 		.name	= "m66592_udc",
58 		.start	= 0xb0000000,
59 		.end	= 0xb00000FF,
60 		.flags	= IORESOURCE_MEM,
61 	},
62 	[1] = {
63 		.name	= "m66592_udc",
64 		.start	= IRQ_EXT4,		/* irq number */
65 		.end	= IRQ_EXT4,
66 		.flags	= IORESOURCE_IRQ,
67 	},
68 };
69 
70 static struct platform_device m66592_usb_peripheral_device = {
71 	.name		= "m66592_udc",
72 	.id		= -1,
73 	.dev = {
74 		.dma_mask		= NULL,		/* don't use dma */
75 		.coherent_dma_mask	= 0xffffffff,
76 	},
77 	.num_resources	= ARRAY_SIZE(m66592_usb_peripheral_resources),
78 	.resource	= m66592_usb_peripheral_resources,
79 };
80 
81 static struct resource cf_ide_resources[] = {
82 	[0] = {
83 		.start	= PA_AREA5_IO + 0x1000,
84 		.end	= PA_AREA5_IO + 0x1000 + 0x08 - 1,
85 		.flags	= IORESOURCE_MEM,
86 	},
87 	[1] = {
88 		.start	= PA_AREA5_IO + 0x80c,
89 		.end	= PA_AREA5_IO + 0x80c + 0x16 - 1,
90 		.flags	= IORESOURCE_MEM,
91 	},
92 	[2] = {
93 		.start	= IRQ_CF,
94 		.flags	= IORESOURCE_IRQ,
95 	},
96 };
97 
98 static struct pata_platform_info pata_info = {
99 	.ioport_shift	= 1,
100 };
101 
102 static struct platform_device cf_ide_device  = {
103 	.name		= "pata_platform",
104 	.id		= -1,
105 	.num_resources	= ARRAY_SIZE(cf_ide_resources),
106 	.resource	= cf_ide_resources,
107 	.dev	= {
108 		.platform_data	= &pata_info,
109 	},
110 };
111 
112 static struct resource heartbeat_resources[] = {
113 	[0] = {
114 		.start	= PA_OBLED,
115 		.end	= PA_OBLED,
116 		.flags	= IORESOURCE_MEM,
117 	},
118 };
119 
120 #ifndef CONFIG_SH_R7785RP
121 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
122 
123 static struct heartbeat_data heartbeat_data = {
124 	.bit_pos	= heartbeat_bit_pos,
125 	.nr_bits	= ARRAY_SIZE(heartbeat_bit_pos),
126 };
127 #endif
128 
129 static struct platform_device heartbeat_device = {
130 	.name		= "heartbeat",
131 	.id		= -1,
132 
133 	/* R7785RP has a slightly more sensible FPGA.. */
134 #ifndef CONFIG_SH_R7785RP
135 	.dev	= {
136 		.platform_data	= &heartbeat_data,
137 	},
138 #endif
139 	.num_resources	= ARRAY_SIZE(heartbeat_resources),
140 	.resource	= heartbeat_resources,
141 };
142 
143 static struct ax_plat_data ax88796_platdata = {
144 	.flags          = AXFLG_HAS_93CX6,
145 	.wordlength     = 2,
146 	.dcr_val        = 0x1,
147 	.rcr_val        = 0x40,
148 };
149 
150 static struct resource ax88796_resources[] = {
151 	{
152 #ifdef CONFIG_SH_R7780RP
153 		.start  = 0xa5800400,
154 		.end    = 0xa5800400 + (0x20 * 0x2) - 1,
155 #else
156 		.start  = 0xa4100400,
157 		.end    = 0xa4100400 + (0x20 * 0x2) - 1,
158 #endif
159 		.flags  = IORESOURCE_MEM,
160 	},
161 	{
162 		.start  = IRQ_AX88796,
163 		.end    = IRQ_AX88796,
164 		.flags  = IORESOURCE_IRQ,
165 	},
166 };
167 
168 static struct platform_device ax88796_device = {
169 	.name           = "ax88796",
170 	.id             = 0,
171 
172 	.dev    = {
173 		.platform_data = &ax88796_platdata,
174 	},
175 
176 	.num_resources  = ARRAY_SIZE(ax88796_resources),
177 	.resource       = ax88796_resources,
178 };
179 
180 static struct resource smbus_resources[] = {
181 	[0] = {
182 		.start	= PA_SMCR,
183 		.end	= PA_SMCR + 0x100 - 1,
184 		.flags	= IORESOURCE_MEM,
185 	},
186 	[1] = {
187 		.start	= IRQ_SMBUS,
188 		.end	= IRQ_SMBUS,
189 		.flags	= IORESOURCE_IRQ,
190 	},
191 };
192 
193 static struct platform_device smbus_device = {
194 	.name		= "i2c-highlander",
195 	.id		= 0,
196 	.num_resources	= ARRAY_SIZE(smbus_resources),
197 	.resource	= smbus_resources,
198 };
199 
200 static struct i2c_board_info __initdata highlander_i2c_devices[] = {
201 	{
202 		I2C_BOARD_INFO("r2025sd", 0x32),
203 	},
204 };
205 
206 static struct platform_device *r7780rp_devices[] __initdata = {
207 	&r8a66597_usb_host_device,
208 	&m66592_usb_peripheral_device,
209 	&heartbeat_device,
210 	&smbus_device,
211 #ifndef CONFIG_SH_R7780RP
212 	&ax88796_device,
213 #endif
214 };
215 
216 /*
217  * The CF is connected using a 16-bit bus where 8-bit operations are
218  * unsupported. The linux ata driver is however using 8-bit operations, so
219  * insert a trapped io filter to convert 8-bit operations into 16-bit.
220  */
221 static struct trapped_io cf_trapped_io = {
222 	.resource		= cf_ide_resources,
223 	.num_resources		= 2,
224 	.minimum_bus_width	= 16,
225 };
226 
227 static int __init r7780rp_devices_setup(void)
228 {
229 	int ret = 0;
230 
231 #ifndef CONFIG_SH_R7780RP
232 	if (register_trapped_io(&cf_trapped_io) == 0)
233 		ret |= platform_device_register(&cf_ide_device);
234 #endif
235 
236 	ret |= platform_add_devices(r7780rp_devices,
237 				    ARRAY_SIZE(r7780rp_devices));
238 
239 	ret |= i2c_register_board_info(0, highlander_i2c_devices,
240 				       ARRAY_SIZE(highlander_i2c_devices));
241 
242 	return ret;
243 }
244 device_initcall(r7780rp_devices_setup);
245 
246 /*
247  * Platform specific clocks
248  */
249 static void ivdr_clk_enable(struct clk *clk)
250 {
251 	ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
252 }
253 
254 static void ivdr_clk_disable(struct clk *clk)
255 {
256 	ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
257 }
258 
259 static struct clk_ops ivdr_clk_ops = {
260 	.enable		= ivdr_clk_enable,
261 	.disable	= ivdr_clk_disable,
262 };
263 
264 static struct clk ivdr_clk = {
265 	.name		= "ivdr_clk",
266 	.ops		= &ivdr_clk_ops,
267 };
268 
269 static struct clk *r7780rp_clocks[] = {
270 	&ivdr_clk,
271 };
272 
273 static void r7780rp_power_off(void)
274 {
275 	if (mach_is_r7780mp() || mach_is_r7785rp())
276 		ctrl_outw(0x0001, PA_POFF);
277 }
278 
279 /*
280  * Initialize the board
281  */
282 static void __init highlander_setup(char **cmdline_p)
283 {
284 	u16 ver = ctrl_inw(PA_VERREG);
285 	int i;
286 
287 	printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
288 			 mach_is_r7780rp() ? "R7780RP-1" :
289 			 mach_is_r7780mp() ? "R7780MP"	 :
290 					     "R7785RP");
291 
292 	printk(KERN_INFO "Board version: %d (revision %d), "
293 			 "FPGA version: %d (revision %d)\n",
294 			 (ver >> 12) & 0xf, (ver >> 8) & 0xf,
295 			 (ver >>  4) & 0xf, ver & 0xf);
296 
297 	/*
298 	 * Enable the important clocks right away..
299 	 */
300 	for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
301 		struct clk *clk = r7780rp_clocks[i];
302 
303 		clk_register(clk);
304 		clk_enable(clk);
305 	}
306 
307 	ctrl_outw(0x0000, PA_OBLED);	/* Clear LED. */
308 
309 	if (mach_is_r7780rp())
310 		ctrl_outw(0x0001, PA_SDPOW);	/* SD Power ON */
311 
312 	ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);	/* Si13112 */
313 
314 	pm_power_off = r7780rp_power_off;
315 }
316 
317 static unsigned char irl2irq[HL_NR_IRL];
318 
319 static int highlander_irq_demux(int irq)
320 {
321 	if (irq >= HL_NR_IRL || !irl2irq[irq])
322 		return irq;
323 
324 	return irl2irq[irq];
325 }
326 
327 static void __init highlander_init_irq(void)
328 {
329 	unsigned char *ucp = highlander_plat_irq_setup();
330 
331 	if (ucp) {
332 		plat_irq_setup_pins(IRQ_MODE_IRL3210);
333 		memcpy(irl2irq, ucp, HL_NR_IRL);
334 	}
335 }
336 
337 /*
338  * The Machine Vector
339  */
340 static struct sh_machine_vector mv_highlander __initmv = {
341 	.mv_name		= "Highlander",
342 	.mv_setup		= highlander_setup,
343 	.mv_init_irq		= highlander_init_irq,
344 	.mv_irq_demux		= highlander_irq_demux,
345 };
346