1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * arch/sh/boards/renesas/r7780rp/setup.c
4 *
5 * Renesas Solutions Highlander Support.
6 *
7 * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
8 * Copyright (C) 2005 - 2008 Paul Mundt
9 *
10 * This contains support for the R7780RP-1, R7780MP, and R7785RP
11 * Highlander modules.
12 */
13 #include <linux/init.h>
14 #include <linux/io.h>
15 #include <linux/platform_device.h>
16 #include <linux/ata_platform.h>
17 #include <linux/types.h>
18 #include <linux/mtd/physmap.h>
19 #include <linux/i2c.h>
20 #include <linux/irq.h>
21 #include <linux/interrupt.h>
22 #include <linux/usb/r8a66597.h>
23 #include <linux/usb/m66592.h>
24 #include <linux/clkdev.h>
25 #include <net/ax88796.h>
26 #include <asm/machvec.h>
27 #include <mach/highlander.h>
28 #include <asm/clock.h>
29 #include <asm/heartbeat.h>
30 #include <asm/io.h>
31 #include <asm/io_trapped.h>
32
33 static struct r8a66597_platdata r8a66597_data = {
34 .xtal = R8A66597_PLATDATA_XTAL_12MHZ,
35 .vif = 1,
36 };
37
38 static struct resource r8a66597_usb_host_resources[] = {
39 [0] = {
40 .start = 0xA4200000,
41 .end = 0xA42000FF,
42 .flags = IORESOURCE_MEM,
43 },
44 [1] = {
45 .start = IRQ_EXT1, /* irq number */
46 .end = IRQ_EXT1,
47 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
48 },
49 };
50
51 static struct platform_device r8a66597_usb_host_device = {
52 .name = "r8a66597_hcd",
53 .id = -1,
54 .dev = {
55 .dma_mask = NULL, /* don't use dma */
56 .coherent_dma_mask = 0xffffffff,
57 .platform_data = &r8a66597_data,
58 },
59 .num_resources = ARRAY_SIZE(r8a66597_usb_host_resources),
60 .resource = r8a66597_usb_host_resources,
61 };
62
63 static struct m66592_platdata usbf_platdata = {
64 .xtal = M66592_PLATDATA_XTAL_24MHZ,
65 .vif = 1,
66 };
67
68 static struct resource m66592_usb_peripheral_resources[] = {
69 [0] = {
70 .name = "m66592_udc",
71 .start = 0xb0000000,
72 .end = 0xb00000FF,
73 .flags = IORESOURCE_MEM,
74 },
75 [1] = {
76 .name = "m66592_udc",
77 .start = IRQ_EXT4, /* irq number */
78 .end = IRQ_EXT4,
79 .flags = IORESOURCE_IRQ,
80 },
81 };
82
83 static struct platform_device m66592_usb_peripheral_device = {
84 .name = "m66592_udc",
85 .id = -1,
86 .dev = {
87 .dma_mask = NULL, /* don't use dma */
88 .coherent_dma_mask = 0xffffffff,
89 .platform_data = &usbf_platdata,
90 },
91 .num_resources = ARRAY_SIZE(m66592_usb_peripheral_resources),
92 .resource = m66592_usb_peripheral_resources,
93 };
94
95 static struct resource cf_ide_resources[] = {
96 [0] = {
97 .start = PA_AREA5_IO + 0x1000,
98 .end = PA_AREA5_IO + 0x1000 + 0x08 - 1,
99 .flags = IORESOURCE_MEM,
100 },
101 [1] = {
102 .start = PA_AREA5_IO + 0x80c,
103 .end = PA_AREA5_IO + 0x80c + 0x16 - 1,
104 .flags = IORESOURCE_MEM,
105 },
106 [2] = {
107 .start = IRQ_CF,
108 .flags = IORESOURCE_IRQ,
109 },
110 };
111
112 static struct pata_platform_info pata_info = {
113 .ioport_shift = 1,
114 };
115
116 static struct platform_device cf_ide_device = {
117 .name = "pata_platform",
118 .id = -1,
119 .num_resources = ARRAY_SIZE(cf_ide_resources),
120 .resource = cf_ide_resources,
121 .dev = {
122 .platform_data = &pata_info,
123 },
124 };
125
126 static struct resource heartbeat_resources[] = {
127 [0] = {
128 .start = PA_OBLED,
129 .end = PA_OBLED,
130 .flags = IORESOURCE_MEM,
131 },
132 };
133
134 #ifndef CONFIG_SH_R7785RP
135 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
136
137 static struct heartbeat_data heartbeat_data = {
138 .bit_pos = heartbeat_bit_pos,
139 .nr_bits = ARRAY_SIZE(heartbeat_bit_pos),
140 };
141 #endif
142
143 static struct platform_device heartbeat_device = {
144 .name = "heartbeat",
145 .id = -1,
146
147 /* R7785RP has a slightly more sensible FPGA.. */
148 #ifndef CONFIG_SH_R7785RP
149 .dev = {
150 .platform_data = &heartbeat_data,
151 },
152 #endif
153 .num_resources = ARRAY_SIZE(heartbeat_resources),
154 .resource = heartbeat_resources,
155 };
156
157 static struct ax_plat_data ax88796_platdata = {
158 .flags = AXFLG_HAS_93CX6,
159 .wordlength = 2,
160 .dcr_val = 0x1,
161 .rcr_val = 0x40,
162 };
163
164 static struct resource ax88796_resources[] = {
165 {
166 #ifdef CONFIG_SH_R7780RP
167 .start = 0xa5800400,
168 .end = 0xa5800400 + (0x20 * 0x2) - 1,
169 #else
170 .start = 0xa4100400,
171 .end = 0xa4100400 + (0x20 * 0x2) - 1,
172 #endif
173 .flags = IORESOURCE_MEM,
174 },
175 {
176 .start = IRQ_AX88796,
177 .end = IRQ_AX88796,
178 .flags = IORESOURCE_IRQ,
179 },
180 };
181
182 static struct platform_device ax88796_device = {
183 .name = "ax88796",
184 .id = 0,
185
186 .dev = {
187 .platform_data = &ax88796_platdata,
188 },
189
190 .num_resources = ARRAY_SIZE(ax88796_resources),
191 .resource = ax88796_resources,
192 };
193
194 static struct mtd_partition nor_flash_partitions[] = {
195 {
196 .name = "loader",
197 .offset = 0x00000000,
198 .size = 512 * 1024,
199 },
200 {
201 .name = "bootenv",
202 .offset = MTDPART_OFS_APPEND,
203 .size = 512 * 1024,
204 },
205 {
206 .name = "kernel",
207 .offset = MTDPART_OFS_APPEND,
208 .size = 4 * 1024 * 1024,
209 },
210 {
211 .name = "data",
212 .offset = MTDPART_OFS_APPEND,
213 .size = MTDPART_SIZ_FULL,
214 },
215 };
216
217 static struct physmap_flash_data nor_flash_data = {
218 .width = 4,
219 .parts = nor_flash_partitions,
220 .nr_parts = ARRAY_SIZE(nor_flash_partitions),
221 };
222
223 /* This config is flash board for mass production. */
224 static struct resource nor_flash_resources[] = {
225 [0] = {
226 .start = PA_NORFLASH_ADDR,
227 .end = PA_NORFLASH_ADDR + PA_NORFLASH_SIZE - 1,
228 .flags = IORESOURCE_MEM,
229 }
230 };
231
232 static struct platform_device nor_flash_device = {
233 .name = "physmap-flash",
234 .dev = {
235 .platform_data = &nor_flash_data,
236 },
237 .num_resources = ARRAY_SIZE(nor_flash_resources),
238 .resource = nor_flash_resources,
239 };
240
241 static struct resource smbus_resources[] = {
242 [0] = {
243 .start = PA_SMCR,
244 .end = PA_SMCR + 0x100 - 1,
245 .flags = IORESOURCE_MEM,
246 },
247 [1] = {
248 .start = IRQ_SMBUS,
249 .end = IRQ_SMBUS,
250 .flags = IORESOURCE_IRQ,
251 },
252 };
253
254 static struct platform_device smbus_device = {
255 .name = "i2c-highlander",
256 .id = 0,
257 .num_resources = ARRAY_SIZE(smbus_resources),
258 .resource = smbus_resources,
259 };
260
261 static struct i2c_board_info __initdata highlander_i2c_devices[] = {
262 {
263 I2C_BOARD_INFO("r2025sd", 0x32),
264 },
265 };
266
267 static struct platform_device *r7780rp_devices[] __initdata = {
268 &r8a66597_usb_host_device,
269 &m66592_usb_peripheral_device,
270 &heartbeat_device,
271 &smbus_device,
272 &nor_flash_device,
273 #ifndef CONFIG_SH_R7780RP
274 &ax88796_device,
275 #endif
276 };
277
278 /*
279 * The CF is connected using a 16-bit bus where 8-bit operations are
280 * unsupported. The linux ata driver is however using 8-bit operations, so
281 * insert a trapped io filter to convert 8-bit operations into 16-bit.
282 */
283 static struct trapped_io cf_trapped_io = {
284 .resource = cf_ide_resources,
285 .num_resources = 2,
286 .minimum_bus_width = 16,
287 };
288
r7780rp_devices_setup(void)289 static int __init r7780rp_devices_setup(void)
290 {
291 int ret = 0;
292
293 #ifndef CONFIG_SH_R7780RP
294 if (register_trapped_io(&cf_trapped_io) == 0)
295 ret |= platform_device_register(&cf_ide_device);
296 #endif
297
298 ret |= platform_add_devices(r7780rp_devices,
299 ARRAY_SIZE(r7780rp_devices));
300
301 ret |= i2c_register_board_info(0, highlander_i2c_devices,
302 ARRAY_SIZE(highlander_i2c_devices));
303
304 return ret;
305 }
306 device_initcall(r7780rp_devices_setup);
307
308 /*
309 * Platform specific clocks
310 */
ivdr_clk_enable(struct clk * clk)311 static int ivdr_clk_enable(struct clk *clk)
312 {
313 __raw_writew(__raw_readw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
314 return 0;
315 }
316
ivdr_clk_disable(struct clk * clk)317 static void ivdr_clk_disable(struct clk *clk)
318 {
319 __raw_writew(__raw_readw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
320 }
321
322 static struct sh_clk_ops ivdr_clk_ops = {
323 .enable = ivdr_clk_enable,
324 .disable = ivdr_clk_disable,
325 };
326
327 static struct clk ivdr_clk = {
328 .ops = &ivdr_clk_ops,
329 };
330
331 static struct clk *r7780rp_clocks[] = {
332 &ivdr_clk,
333 };
334
335 static struct clk_lookup lookups[] = {
336 /* main clocks */
337 CLKDEV_CON_ID("ivdr_clk", &ivdr_clk),
338 };
339
r7780rp_power_off(void)340 static void r7780rp_power_off(void)
341 {
342 if (mach_is_r7780mp() || mach_is_r7785rp())
343 __raw_writew(0x0001, PA_POFF);
344 }
345
346 /*
347 * Initialize the board
348 */
highlander_setup(char ** cmdline_p)349 static void __init highlander_setup(char **cmdline_p)
350 {
351 u16 ver = __raw_readw(PA_VERREG);
352 int i;
353
354 printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
355 mach_is_r7780rp() ? "R7780RP-1" :
356 mach_is_r7780mp() ? "R7780MP" :
357 "R7785RP");
358
359 printk(KERN_INFO "Board version: %d (revision %d), "
360 "FPGA version: %d (revision %d)\n",
361 (ver >> 12) & 0xf, (ver >> 8) & 0xf,
362 (ver >> 4) & 0xf, ver & 0xf);
363
364 highlander_plat_pinmux_setup();
365
366 /*
367 * Enable the important clocks right away..
368 */
369 for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
370 struct clk *clk = r7780rp_clocks[i];
371
372 clk_register(clk);
373 clk_enable(clk);
374 }
375
376 clkdev_add_table(lookups, ARRAY_SIZE(lookups));
377
378 __raw_writew(0x0000, PA_OBLED); /* Clear LED. */
379
380 if (mach_is_r7780rp())
381 __raw_writew(0x0001, PA_SDPOW); /* SD Power ON */
382
383 __raw_writew(__raw_readw(PA_IVDRCTL) | 0x01, PA_IVDRCTL); /* Si13112 */
384
385 pm_power_off = r7780rp_power_off;
386 }
387
388 static unsigned char irl2irq[HL_NR_IRL];
389
highlander_irq_demux(int irq)390 static int highlander_irq_demux(int irq)
391 {
392 if (irq >= HL_NR_IRL || irq < 0 || !irl2irq[irq])
393 return irq;
394
395 return irl2irq[irq];
396 }
397
highlander_init_irq(void)398 static void __init highlander_init_irq(void)
399 {
400 unsigned char *ucp = highlander_plat_irq_setup();
401
402 if (ucp) {
403 plat_irq_setup_pins(IRQ_MODE_IRL3210);
404 memcpy(irl2irq, ucp, HL_NR_IRL);
405 }
406 }
407
408 /*
409 * The Machine Vector
410 */
411 static struct sh_machine_vector mv_highlander __initmv = {
412 .mv_name = "Highlander",
413 .mv_setup = highlander_setup,
414 .mv_init_irq = highlander_init_irq,
415 .mv_irq_demux = highlander_irq_demux,
416 };
417