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 | |
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(busnum: 0, info: 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 | */ |
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 | |
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 | |
340 | static void r7780rp_power_off(void) |
341 | { |
342 | if (mach_is_r7780mp() || mach_is_r7785rp()) |
343 | __raw_writew(val: 0x0001, addr: PA_POFF); |
344 | } |
345 | |
346 | /* |
347 | * Initialize the board |
348 | */ |
349 | static void __init highlander_setup(char **cmdline_p) |
350 | { |
351 | u16 ver = __raw_readw(addr: 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(val: 0x0000, addr: PA_OBLED); /* Clear LED. */ |
379 | |
380 | if (mach_is_r7780rp()) |
381 | __raw_writew(val: 0x0001, addr: PA_SDPOW); /* SD Power ON */ |
382 | |
383 | __raw_writew(__raw_readw(addr: PA_IVDRCTL) | 0x01, addr: PA_IVDRCTL); /* Si13112 */ |
384 | |
385 | pm_power_off = r7780rp_power_off; |
386 | } |
387 | |
388 | static unsigned char irl2irq[HL_NR_IRL]; |
389 | |
390 | static int highlander_irq_demux(int irq) |
391 | { |
392 | if (irq >= HL_NR_IRL + 16 || irq < 16 || !irl2irq[irq - 16]) |
393 | return irq; |
394 | |
395 | return irl2irq[irq - 16]; |
396 | } |
397 | |
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 | |