Commit | Line | Data |
---|---|---|
7c6337e2 KH |
1 | /* |
2 | * TI DaVinci EVM board support | |
3 | * | |
4 | * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com> | |
5 | * | |
6 | * 2007 (c) MontaVista Software, Inc. This file is licensed under | |
7 | * the terms of the GNU General Public License version 2. This program | |
8 | * is licensed "as is" without any warranty of any kind, whether express | |
9 | * or implied. | |
10 | */ | |
11 | #include <linux/kernel.h> | |
12 | #include <linux/module.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/dma-mapping.h> | |
15 | #include <linux/platform_device.h> | |
7bff3c4c DB |
16 | #include <linux/gpio.h> |
17 | #include <linux/leds.h> | |
d0e47fba | 18 | #include <linux/memory.h> |
7bff3c4c DB |
19 | |
20 | #include <linux/i2c.h> | |
21 | #include <linux/i2c/pcf857x.h> | |
22 | #include <linux/i2c/at24.h> | |
ac7b75b5 | 23 | #include <linux/etherdevice.h> |
7c6337e2 | 24 | #include <linux/mtd/mtd.h> |
d0e47fba | 25 | #include <linux/mtd/nand.h> |
7c6337e2 KH |
26 | #include <linux/mtd/partitions.h> |
27 | #include <linux/mtd/physmap.h> | |
fced80c7 | 28 | #include <linux/io.h> |
d0e47fba KH |
29 | #include <linux/phy.h> |
30 | #include <linux/clk.h> | |
7c6337e2 KH |
31 | |
32 | #include <asm/setup.h> | |
7c6337e2 | 33 | #include <asm/mach-types.h> |
7c6337e2 KH |
34 | |
35 | #include <asm/mach/arch.h> | |
36 | #include <asm/mach/map.h> | |
37 | #include <asm/mach/flash.h> | |
38 | ||
d0e47fba | 39 | #include <mach/dm644x.h> |
a09e64fb | 40 | #include <mach/common.h> |
7bff3c4c | 41 | #include <mach/i2c.h> |
d0e47fba KH |
42 | #include <mach/serial.h> |
43 | #include <mach/mux.h> | |
44 | #include <mach/psc.h> | |
45 | #include <mach/nand.h> | |
2dbf56ae | 46 | #include <mach/mmc.h> |
79c3c0b7 | 47 | #include <mach/common.h> |
d0e47fba KH |
48 | |
49 | #define DM644X_EVM_PHY_MASK (0x2) | |
50 | #define DM644X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */ | |
7c6337e2 | 51 | |
f5c122da | 52 | #define DAVINCI_CFC_ATA_BASE 0x01C66000 |
f5c122da | 53 | |
d0e47fba KH |
54 | #define DAVINCI_ASYNC_EMIF_CONTROL_BASE 0x01e00000 |
55 | #define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE 0x02000000 | |
56 | #define DAVINCI_ASYNC_EMIF_DATA_CE1_BASE 0x04000000 | |
57 | #define DAVINCI_ASYNC_EMIF_DATA_CE2_BASE 0x06000000 | |
58 | #define DAVINCI_ASYNC_EMIF_DATA_CE3_BASE 0x08000000 | |
7c6337e2 | 59 | |
d0e47fba KH |
60 | #define LXT971_PHY_ID (0x001378e2) |
61 | #define LXT971_PHY_MASK (0xfffffff0) | |
7c6337e2 | 62 | |
7bff3c4c | 63 | static struct mtd_partition davinci_evm_norflash_partitions[] = { |
d0e47fba | 64 | /* bootloader (UBL, U-Boot, etc) in first 5 sectors */ |
7c6337e2 KH |
65 | { |
66 | .name = "bootloader", | |
67 | .offset = 0, | |
d0e47fba | 68 | .size = 5 * SZ_64K, |
7c6337e2 KH |
69 | .mask_flags = MTD_WRITEABLE, /* force read-only */ |
70 | }, | |
71 | /* bootloader params in the next 1 sectors */ | |
72 | { | |
73 | .name = "params", | |
74 | .offset = MTDPART_OFS_APPEND, | |
75 | .size = SZ_64K, | |
76 | .mask_flags = 0, | |
77 | }, | |
78 | /* kernel */ | |
79 | { | |
80 | .name = "kernel", | |
81 | .offset = MTDPART_OFS_APPEND, | |
82 | .size = SZ_2M, | |
83 | .mask_flags = 0 | |
84 | }, | |
85 | /* file system */ | |
86 | { | |
87 | .name = "filesystem", | |
88 | .offset = MTDPART_OFS_APPEND, | |
89 | .size = MTDPART_SIZ_FULL, | |
90 | .mask_flags = 0 | |
91 | } | |
92 | }; | |
93 | ||
7bff3c4c | 94 | static struct physmap_flash_data davinci_evm_norflash_data = { |
7c6337e2 | 95 | .width = 2, |
7bff3c4c DB |
96 | .parts = davinci_evm_norflash_partitions, |
97 | .nr_parts = ARRAY_SIZE(davinci_evm_norflash_partitions), | |
7c6337e2 KH |
98 | }; |
99 | ||
100 | /* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF | |
101 | * limits addresses to 16M, so using addresses past 16M will wrap */ | |
7bff3c4c DB |
102 | static struct resource davinci_evm_norflash_resource = { |
103 | .start = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE, | |
104 | .end = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1, | |
7c6337e2 KH |
105 | .flags = IORESOURCE_MEM, |
106 | }; | |
107 | ||
7bff3c4c | 108 | static struct platform_device davinci_evm_norflash_device = { |
7c6337e2 KH |
109 | .name = "physmap-flash", |
110 | .id = 0, | |
111 | .dev = { | |
7bff3c4c | 112 | .platform_data = &davinci_evm_norflash_data, |
7c6337e2 KH |
113 | }, |
114 | .num_resources = 1, | |
7bff3c4c DB |
115 | .resource = &davinci_evm_norflash_resource, |
116 | }; | |
117 | ||
3e9c18e1 DB |
118 | /* DM644x EVM includes a 64 MByte small-page NAND flash (16K blocks). |
119 | * It may used instead of the (default) NOR chip to boot, using TI's | |
120 | * tools to install the secondary boot loader (UBL) and U-Boot. | |
121 | */ | |
d0e47fba | 122 | struct mtd_partition davinci_evm_nandflash_partition[] = { |
3e9c18e1 DB |
123 | /* Bootloader layout depends on whose u-boot is installed, but we |
124 | * can hide all the details. | |
125 | * - block 0 for u-boot environment ... in mainline u-boot | |
126 | * - block 1 for UBL (plus up to four backup copies in blocks 2..5) | |
127 | * - blocks 6...? for u-boot | |
128 | * - blocks 16..23 for u-boot environment ... in TI's u-boot | |
129 | */ | |
130 | { | |
131 | .name = "bootloader", | |
132 | .offset = 0, | |
133 | .size = SZ_256K + SZ_128K, | |
134 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
135 | }, | |
136 | /* Kernel */ | |
d0e47fba | 137 | { |
3e9c18e1 DB |
138 | .name = "kernel", |
139 | .offset = MTDPART_OFS_APPEND, | |
140 | .size = SZ_4M, | |
141 | .mask_flags = 0, | |
142 | }, | |
143 | /* File system (older GIT kernels started this on the 5MB mark) */ | |
144 | { | |
145 | .name = "filesystem", | |
146 | .offset = MTDPART_OFS_APPEND, | |
d0e47fba KH |
147 | .size = MTDPART_SIZ_FULL, |
148 | .mask_flags = 0, | |
149 | } | |
3e9c18e1 DB |
150 | /* A few blocks at end hold a flash BBT ... created by TI's CCS |
151 | * using flashwriter_nand.out, but ignored by TI's versions of | |
152 | * Linux and u-boot. We boot faster by using them. | |
153 | */ | |
d0e47fba | 154 | }; |
7bff3c4c | 155 | |
d0e47fba KH |
156 | static struct davinci_nand_pdata davinci_evm_nandflash_data = { |
157 | .parts = davinci_evm_nandflash_partition, | |
158 | .nr_parts = ARRAY_SIZE(davinci_evm_nandflash_partition), | |
159 | .ecc_mode = NAND_ECC_HW, | |
3e9c18e1 | 160 | .options = NAND_USE_FLASH_BBT, |
d0e47fba KH |
161 | }; |
162 | ||
163 | static struct resource davinci_evm_nandflash_resource[] = { | |
164 | { | |
165 | .start = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE, | |
166 | .end = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1, | |
167 | .flags = IORESOURCE_MEM, | |
168 | }, { | |
169 | .start = DAVINCI_ASYNC_EMIF_CONTROL_BASE, | |
170 | .end = DAVINCI_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1, | |
171 | .flags = IORESOURCE_MEM, | |
172 | }, | |
173 | }; | |
174 | ||
175 | static struct platform_device davinci_evm_nandflash_device = { | |
176 | .name = "davinci_nand", | |
177 | .id = 0, | |
178 | .dev = { | |
179 | .platform_data = &davinci_evm_nandflash_data, | |
180 | }, | |
181 | .num_resources = ARRAY_SIZE(davinci_evm_nandflash_resource), | |
182 | .resource = davinci_evm_nandflash_resource, | |
183 | }; | |
184 | ||
3e9c18e1 | 185 | static u64 davinci_fb_dma_mask = DMA_BIT_MASK(32); |
d0e47fba KH |
186 | |
187 | static struct platform_device davinci_fb_device = { | |
188 | .name = "davincifb", | |
189 | .id = -1, | |
190 | .dev = { | |
191 | .dma_mask = &davinci_fb_dma_mask, | |
3e9c18e1 | 192 | .coherent_dma_mask = DMA_BIT_MASK(32), |
d0e47fba KH |
193 | }, |
194 | .num_resources = 0, | |
195 | }; | |
196 | ||
197 | static struct platform_device rtc_dev = { | |
198 | .name = "rtc_davinci_evm", | |
199 | .id = -1, | |
200 | }; | |
7bff3c4c DB |
201 | |
202 | static struct resource ide_resources[] = { | |
203 | { | |
204 | .start = DAVINCI_CFC_ATA_BASE, | |
205 | .end = DAVINCI_CFC_ATA_BASE + 0x7ff, | |
206 | .flags = IORESOURCE_MEM, | |
207 | }, | |
208 | { | |
209 | .start = IRQ_IDE, | |
210 | .end = IRQ_IDE, | |
211 | .flags = IORESOURCE_IRQ, | |
212 | }, | |
213 | }; | |
214 | ||
a029b706 | 215 | static u64 ide_dma_mask = DMA_BIT_MASK(32); |
7bff3c4c DB |
216 | |
217 | static struct platform_device ide_dev = { | |
218 | .name = "palm_bk3710", | |
219 | .id = -1, | |
220 | .resource = ide_resources, | |
221 | .num_resources = ARRAY_SIZE(ide_resources), | |
222 | .dev = { | |
223 | .dma_mask = &ide_dma_mask, | |
a029b706 | 224 | .coherent_dma_mask = DMA_BIT_MASK(32), |
7bff3c4c DB |
225 | }, |
226 | }; | |
227 | ||
7bff3c4c DB |
228 | /*----------------------------------------------------------------------*/ |
229 | ||
230 | /* | |
231 | * I2C GPIO expanders | |
232 | */ | |
233 | ||
234 | #define PCF_Uxx_BASE(x) (DAVINCI_N_GPIO + ((x) * 8)) | |
235 | ||
236 | ||
237 | /* U2 -- LEDs */ | |
238 | ||
239 | static struct gpio_led evm_leds[] = { | |
240 | { .name = "DS8", .active_low = 1, | |
241 | .default_trigger = "heartbeat", }, | |
242 | { .name = "DS7", .active_low = 1, }, | |
243 | { .name = "DS6", .active_low = 1, }, | |
244 | { .name = "DS5", .active_low = 1, }, | |
245 | { .name = "DS4", .active_low = 1, }, | |
246 | { .name = "DS3", .active_low = 1, }, | |
247 | { .name = "DS2", .active_low = 1, | |
248 | .default_trigger = "mmc0", }, | |
249 | { .name = "DS1", .active_low = 1, | |
250 | .default_trigger = "ide-disk", }, | |
251 | }; | |
252 | ||
253 | static const struct gpio_led_platform_data evm_led_data = { | |
254 | .num_leds = ARRAY_SIZE(evm_leds), | |
255 | .leds = evm_leds, | |
256 | }; | |
257 | ||
258 | static struct platform_device *evm_led_dev; | |
259 | ||
260 | static int | |
261 | evm_led_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c) | |
262 | { | |
263 | struct gpio_led *leds = evm_leds; | |
264 | int status; | |
265 | ||
266 | while (ngpio--) { | |
267 | leds->gpio = gpio++; | |
268 | leds++; | |
269 | } | |
270 | ||
271 | /* what an extremely annoying way to be forced to handle | |
272 | * device unregistration ... | |
273 | */ | |
274 | evm_led_dev = platform_device_alloc("leds-gpio", 0); | |
275 | platform_device_add_data(evm_led_dev, | |
276 | &evm_led_data, sizeof evm_led_data); | |
277 | ||
278 | evm_led_dev->dev.parent = &client->dev; | |
279 | status = platform_device_add(evm_led_dev); | |
280 | if (status < 0) { | |
281 | platform_device_put(evm_led_dev); | |
282 | evm_led_dev = NULL; | |
283 | } | |
284 | return status; | |
285 | } | |
286 | ||
287 | static int | |
288 | evm_led_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c) | |
289 | { | |
290 | if (evm_led_dev) { | |
291 | platform_device_unregister(evm_led_dev); | |
292 | evm_led_dev = NULL; | |
293 | } | |
294 | return 0; | |
295 | } | |
296 | ||
297 | static struct pcf857x_platform_data pcf_data_u2 = { | |
298 | .gpio_base = PCF_Uxx_BASE(0), | |
299 | .setup = evm_led_setup, | |
300 | .teardown = evm_led_teardown, | |
301 | }; | |
302 | ||
303 | ||
304 | /* U18 - A/V clock generator and user switch */ | |
305 | ||
306 | static int sw_gpio; | |
307 | ||
308 | static ssize_t | |
309 | sw_show(struct device *d, struct device_attribute *a, char *buf) | |
310 | { | |
311 | char *s = gpio_get_value_cansleep(sw_gpio) ? "on\n" : "off\n"; | |
312 | ||
313 | strcpy(buf, s); | |
314 | return strlen(s); | |
315 | } | |
316 | ||
317 | static DEVICE_ATTR(user_sw, S_IRUGO, sw_show, NULL); | |
318 | ||
319 | static int | |
320 | evm_u18_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c) | |
321 | { | |
322 | int status; | |
323 | ||
324 | /* export dip switch option */ | |
325 | sw_gpio = gpio + 7; | |
326 | status = gpio_request(sw_gpio, "user_sw"); | |
327 | if (status == 0) | |
328 | status = gpio_direction_input(sw_gpio); | |
329 | if (status == 0) | |
330 | status = device_create_file(&client->dev, &dev_attr_user_sw); | |
331 | else | |
332 | gpio_free(sw_gpio); | |
333 | if (status != 0) | |
334 | sw_gpio = -EINVAL; | |
335 | ||
336 | /* audio PLL: 48 kHz (vs 44.1 or 32), single rate (vs double) */ | |
337 | gpio_request(gpio + 3, "pll_fs2"); | |
338 | gpio_direction_output(gpio + 3, 0); | |
339 | ||
340 | gpio_request(gpio + 2, "pll_fs1"); | |
341 | gpio_direction_output(gpio + 2, 0); | |
342 | ||
343 | gpio_request(gpio + 1, "pll_sr"); | |
344 | gpio_direction_output(gpio + 1, 0); | |
345 | ||
346 | return 0; | |
347 | } | |
348 | ||
349 | static int | |
350 | evm_u18_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c) | |
351 | { | |
352 | gpio_free(gpio + 1); | |
353 | gpio_free(gpio + 2); | |
354 | gpio_free(gpio + 3); | |
355 | ||
356 | if (sw_gpio > 0) { | |
357 | device_remove_file(&client->dev, &dev_attr_user_sw); | |
358 | gpio_free(sw_gpio); | |
359 | } | |
360 | return 0; | |
361 | } | |
362 | ||
363 | static struct pcf857x_platform_data pcf_data_u18 = { | |
364 | .gpio_base = PCF_Uxx_BASE(1), | |
365 | .n_latch = (1 << 3) | (1 << 2) | (1 << 1), | |
366 | .setup = evm_u18_setup, | |
367 | .teardown = evm_u18_teardown, | |
7c6337e2 KH |
368 | }; |
369 | ||
7bff3c4c DB |
370 | |
371 | /* U35 - various I/O signals used to manage USB, CF, ATA, etc */ | |
372 | ||
373 | static int | |
374 | evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c) | |
375 | { | |
376 | /* p0 = nDRV_VBUS (initial: don't supply it) */ | |
377 | gpio_request(gpio + 0, "nDRV_VBUS"); | |
378 | gpio_direction_output(gpio + 0, 1); | |
379 | ||
380 | /* p1 = VDDIMX_EN */ | |
381 | gpio_request(gpio + 1, "VDDIMX_EN"); | |
382 | gpio_direction_output(gpio + 1, 1); | |
383 | ||
384 | /* p2 = VLYNQ_EN */ | |
385 | gpio_request(gpio + 2, "VLYNQ_EN"); | |
386 | gpio_direction_output(gpio + 2, 1); | |
387 | ||
388 | /* p3 = n3V3_CF_RESET (initial: stay in reset) */ | |
389 | gpio_request(gpio + 3, "nCF_RESET"); | |
390 | gpio_direction_output(gpio + 3, 0); | |
391 | ||
392 | /* (p4 unused) */ | |
393 | ||
394 | /* p5 = 1V8_WLAN_RESET (initial: stay in reset) */ | |
395 | gpio_request(gpio + 5, "WLAN_RESET"); | |
396 | gpio_direction_output(gpio + 5, 1); | |
397 | ||
398 | /* p6 = nATA_SEL (initial: select) */ | |
399 | gpio_request(gpio + 6, "nATA_SEL"); | |
400 | gpio_direction_output(gpio + 6, 0); | |
401 | ||
402 | /* p7 = nCF_SEL (initial: deselect) */ | |
403 | gpio_request(gpio + 7, "nCF_SEL"); | |
404 | gpio_direction_output(gpio + 7, 1); | |
405 | ||
d0e47fba KH |
406 | /* irlml6401 switches over 1A, in under 8 msec; |
407 | * now it can be managed by nDRV_VBUS ... | |
408 | */ | |
34f32c97 DB |
409 | setup_usb(500, 8); |
410 | ||
7bff3c4c DB |
411 | return 0; |
412 | } | |
413 | ||
414 | static int | |
415 | evm_u35_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c) | |
416 | { | |
417 | gpio_free(gpio + 7); | |
418 | gpio_free(gpio + 6); | |
419 | gpio_free(gpio + 5); | |
420 | gpio_free(gpio + 3); | |
421 | gpio_free(gpio + 2); | |
422 | gpio_free(gpio + 1); | |
423 | gpio_free(gpio + 0); | |
424 | return 0; | |
425 | } | |
426 | ||
427 | static struct pcf857x_platform_data pcf_data_u35 = { | |
428 | .gpio_base = PCF_Uxx_BASE(2), | |
429 | .setup = evm_u35_setup, | |
430 | .teardown = evm_u35_teardown, | |
431 | }; | |
432 | ||
433 | /*----------------------------------------------------------------------*/ | |
434 | ||
435 | /* Most of this EEPROM is unused, but U-Boot uses some data: | |
436 | * - 0x7f00, 6 bytes Ethernet Address | |
437 | * - 0x0039, 1 byte NTSC vs PAL (bit 0x80 == PAL) | |
438 | * - ... newer boards may have more | |
439 | */ | |
d0e47fba KH |
440 | static struct memory_accessor *at24_mem_acc; |
441 | ||
442 | static void at24_setup(struct memory_accessor *mem_acc, void *context) | |
443 | { | |
ac7b75b5 | 444 | char mac_addr[ETH_ALEN]; |
972412b6 | 445 | struct davinci_soc_info *soc_info = &davinci_soc_info; |
d0e47fba KH |
446 | |
447 | at24_mem_acc = mem_acc; | |
448 | ||
449 | /* Read MAC addr from EEPROM */ | |
ac7b75b5 KH |
450 | if (at24_mem_acc->read(at24_mem_acc, mac_addr, 0x7f00, ETH_ALEN) == |
451 | ETH_ALEN) { | |
452 | printk(KERN_INFO "Read MAC addr from EEPROM: %pM\n", mac_addr); | |
972412b6 | 453 | memcpy(soc_info->emac_pdata->mac_addr, mac_addr, ETH_ALEN); |
d0e47fba KH |
454 | } |
455 | } | |
456 | ||
7bff3c4c DB |
457 | static struct at24_platform_data eeprom_info = { |
458 | .byte_len = (256*1024) / 8, | |
459 | .page_size = 64, | |
460 | .flags = AT24_FLAG_ADDR16, | |
d0e47fba KH |
461 | .setup = at24_setup, |
462 | }; | |
463 | ||
d0e47fba KH |
464 | /* |
465 | * MSP430 supports RTC, card detection, input from IR remote, and | |
466 | * a bit more. It triggers interrupts on GPIO(7) from pressing | |
467 | * buttons on the IR remote, and for card detect switches. | |
468 | */ | |
469 | static struct i2c_client *dm6446evm_msp; | |
470 | ||
471 | static int dm6446evm_msp_probe(struct i2c_client *client, | |
472 | const struct i2c_device_id *id) | |
473 | { | |
474 | dm6446evm_msp = client; | |
475 | return 0; | |
476 | } | |
477 | ||
478 | static int dm6446evm_msp_remove(struct i2c_client *client) | |
479 | { | |
480 | dm6446evm_msp = NULL; | |
481 | return 0; | |
482 | } | |
483 | ||
484 | static const struct i2c_device_id dm6446evm_msp_ids[] = { | |
485 | { "dm6446evm_msp", 0, }, | |
486 | { /* end of list */ }, | |
487 | }; | |
488 | ||
489 | static struct i2c_driver dm6446evm_msp_driver = { | |
490 | .driver.name = "dm6446evm_msp", | |
491 | .id_table = dm6446evm_msp_ids, | |
492 | .probe = dm6446evm_msp_probe, | |
493 | .remove = dm6446evm_msp_remove, | |
7bff3c4c DB |
494 | }; |
495 | ||
d0e47fba KH |
496 | static int dm6444evm_msp430_get_pins(void) |
497 | { | |
498 | static const char txbuf[2] = { 2, 4, }; | |
499 | char buf[4]; | |
500 | struct i2c_msg msg[2] = { | |
501 | { | |
502 | .addr = dm6446evm_msp->addr, | |
503 | .flags = 0, | |
504 | .len = 2, | |
505 | .buf = (void __force *)txbuf, | |
506 | }, | |
507 | { | |
508 | .addr = dm6446evm_msp->addr, | |
509 | .flags = I2C_M_RD, | |
510 | .len = 4, | |
511 | .buf = buf, | |
512 | }, | |
513 | }; | |
514 | int status; | |
515 | ||
516 | if (!dm6446evm_msp) | |
517 | return -ENXIO; | |
518 | ||
519 | /* Command 4 == get input state, returns port 2 and port3 data | |
520 | * S Addr W [A] len=2 [A] cmd=4 [A] | |
521 | * RS Addr R [A] [len=4] A [cmd=4] A [port2] A [port3] N P | |
522 | */ | |
523 | status = i2c_transfer(dm6446evm_msp->adapter, msg, 2); | |
524 | if (status < 0) | |
525 | return status; | |
526 | ||
527 | dev_dbg(&dm6446evm_msp->dev, | |
528 | "PINS: %02x %02x %02x %02x\n", | |
529 | buf[0], buf[1], buf[2], buf[3]); | |
530 | ||
531 | return (buf[3] << 8) | buf[2]; | |
532 | } | |
533 | ||
2dbf56ae KH |
534 | static int dm6444evm_mmc_get_cd(int module) |
535 | { | |
536 | int status = dm6444evm_msp430_get_pins(); | |
537 | ||
538 | return (status < 0) ? status : !(status & BIT(1)); | |
539 | } | |
540 | ||
541 | static int dm6444evm_mmc_get_ro(int module) | |
542 | { | |
543 | int status = dm6444evm_msp430_get_pins(); | |
544 | ||
545 | return (status < 0) ? status : status & BIT(6 + 8); | |
546 | } | |
547 | ||
548 | static struct davinci_mmc_config dm6446evm_mmc_config = { | |
549 | .get_cd = dm6444evm_mmc_get_cd, | |
550 | .get_ro = dm6444evm_mmc_get_ro, | |
551 | .wires = 4, | |
552 | .version = MMC_CTLR_VERSION_1 | |
553 | }; | |
554 | ||
7bff3c4c | 555 | static struct i2c_board_info __initdata i2c_info[] = { |
d0e47fba KH |
556 | { |
557 | I2C_BOARD_INFO("dm6446evm_msp", 0x23), | |
558 | }, | |
7bff3c4c DB |
559 | { |
560 | I2C_BOARD_INFO("pcf8574", 0x38), | |
561 | .platform_data = &pcf_data_u2, | |
562 | }, | |
563 | { | |
564 | I2C_BOARD_INFO("pcf8574", 0x39), | |
565 | .platform_data = &pcf_data_u18, | |
566 | }, | |
567 | { | |
568 | I2C_BOARD_INFO("pcf8574", 0x3a), | |
569 | .platform_data = &pcf_data_u35, | |
570 | }, | |
571 | { | |
572 | I2C_BOARD_INFO("24c256", 0x50), | |
573 | .platform_data = &eeprom_info, | |
574 | }, | |
575 | /* ALSO: | |
576 | * - tvl320aic33 audio codec (0x1b) | |
7bff3c4c DB |
577 | * - tvp5146 video decoder (0x5d) |
578 | */ | |
579 | }; | |
580 | ||
581 | /* The msp430 uses a slow bitbanged I2C implementation (ergo 20 KHz), | |
582 | * which requires 100 usec of idle bus after i2c writes sent to it. | |
583 | */ | |
584 | static struct davinci_i2c_platform_data i2c_pdata = { | |
585 | .bus_freq = 20 /* kHz */, | |
586 | .bus_delay = 100 /* usec */, | |
587 | }; | |
588 | ||
589 | static void __init evm_init_i2c(void) | |
590 | { | |
591 | davinci_init_i2c(&i2c_pdata); | |
d0e47fba | 592 | i2c_add_driver(&dm6446evm_msp_driver); |
7bff3c4c DB |
593 | i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info)); |
594 | } | |
595 | ||
7c6337e2 | 596 | static struct platform_device *davinci_evm_devices[] __initdata = { |
d0e47fba KH |
597 | &davinci_fb_device, |
598 | &rtc_dev, | |
599 | }; | |
600 | ||
601 | static struct davinci_uart_config uart_config __initdata = { | |
602 | .enabled_uarts = (1 << 0), | |
7c6337e2 KH |
603 | }; |
604 | ||
605 | static void __init | |
606 | davinci_evm_map_io(void) | |
607 | { | |
d0e47fba | 608 | dm644x_init(); |
7c6337e2 KH |
609 | } |
610 | ||
d0e47fba | 611 | static int davinci_phy_fixup(struct phy_device *phydev) |
7c6337e2 | 612 | { |
d0e47fba KH |
613 | unsigned int control; |
614 | /* CRITICAL: Fix for increasing PHY signal drive strength for | |
615 | * TX lockup issue. On DaVinci EVM, the Intel LXT971 PHY | |
616 | * signal strength was low causing TX to fail randomly. The | |
617 | * fix is to Set bit 11 (Increased MII drive strength) of PHY | |
618 | * register 26 (Digital Config register) on this phy. */ | |
619 | control = phy_read(phydev, 26); | |
620 | phy_write(phydev, 26, (control | 0x800)); | |
621 | return 0; | |
622 | } | |
623 | ||
7bff3c4c DB |
624 | #if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \ |
625 | defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE) | |
d0e47fba KH |
626 | #define HAS_ATA 1 |
627 | #else | |
628 | #define HAS_ATA 0 | |
629 | #endif | |
630 | ||
7bff3c4c DB |
631 | #if defined(CONFIG_MTD_PHYSMAP) || \ |
632 | defined(CONFIG_MTD_PHYSMAP_MODULE) | |
d0e47fba KH |
633 | #define HAS_NOR 1 |
634 | #else | |
635 | #define HAS_NOR 0 | |
7bff3c4c | 636 | #endif |
d0e47fba KH |
637 | |
638 | #if defined(CONFIG_MTD_NAND_DAVINCI) || \ | |
639 | defined(CONFIG_MTD_NAND_DAVINCI_MODULE) | |
640 | #define HAS_NAND 1 | |
641 | #else | |
642 | #define HAS_NAND 0 | |
7c6337e2 KH |
643 | #endif |
644 | ||
d0e47fba KH |
645 | static __init void davinci_evm_init(void) |
646 | { | |
647 | struct clk *aemif_clk; | |
972412b6 | 648 | struct davinci_soc_info *soc_info = &davinci_soc_info; |
d0e47fba KH |
649 | |
650 | aemif_clk = clk_get(NULL, "aemif"); | |
651 | clk_enable(aemif_clk); | |
652 | ||
653 | if (HAS_ATA) { | |
654 | if (HAS_NAND || HAS_NOR) | |
655 | pr_warning("WARNING: both IDE and Flash are " | |
656 | "enabled, but they share AEMIF pins.\n" | |
657 | "\tDisable IDE for NAND/NOR support.\n"); | |
658 | davinci_cfg_reg(DM644X_HPIEN_DISABLE); | |
659 | davinci_cfg_reg(DM644X_ATAEN); | |
660 | davinci_cfg_reg(DM644X_HDIREN); | |
661 | platform_device_register(&ide_dev); | |
662 | } else if (HAS_NAND || HAS_NOR) { | |
663 | davinci_cfg_reg(DM644X_HPIEN_DISABLE); | |
664 | davinci_cfg_reg(DM644X_ATAEN_DISABLE); | |
665 | ||
666 | /* only one device will be jumpered and detected */ | |
667 | if (HAS_NAND) { | |
668 | platform_device_register(&davinci_evm_nandflash_device); | |
669 | evm_leds[7].default_trigger = "nand-disk"; | |
670 | if (HAS_NOR) | |
671 | pr_warning("WARNING: both NAND and NOR flash " | |
672 | "are enabled; disable one of them.\n"); | |
673 | } else if (HAS_NOR) | |
674 | platform_device_register(&davinci_evm_norflash_device); | |
675 | } | |
676 | ||
7c6337e2 KH |
677 | platform_add_devices(davinci_evm_devices, |
678 | ARRAY_SIZE(davinci_evm_devices)); | |
7bff3c4c | 679 | evm_init_i2c(); |
d0e47fba | 680 | |
2dbf56ae KH |
681 | davinci_setup_mmc(0, &dm6446evm_mmc_config); |
682 | ||
d0e47fba KH |
683 | davinci_serial_init(&uart_config); |
684 | ||
972412b6 MG |
685 | soc_info->emac_pdata->phy_mask = DM644X_EVM_PHY_MASK; |
686 | soc_info->emac_pdata->mdio_max_freq = DM644X_EVM_MDIO_FREQUENCY; | |
687 | dm644x_init_emac(soc_info->emac_pdata); | |
ac7b75b5 | 688 | |
d0e47fba KH |
689 | /* Register the fixup for PHY on DaVinci */ |
690 | phy_register_fixup_for_uid(LXT971_PHY_ID, LXT971_PHY_MASK, | |
691 | davinci_phy_fixup); | |
692 | ||
7c6337e2 KH |
693 | } |
694 | ||
695 | static __init void davinci_evm_irq_init(void) | |
696 | { | |
697 | davinci_irq_init(); | |
698 | } | |
699 | ||
d0e47fba | 700 | MACHINE_START(DAVINCI_EVM, "DaVinci DM644x EVM") |
7c6337e2 KH |
701 | /* Maintainer: MontaVista Software <source@mvista.com> */ |
702 | .phys_io = IO_PHYS, | |
ac7643e4 | 703 | .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc, |
7c6337e2 KH |
704 | .boot_params = (DAVINCI_DDR_BASE + 0x100), |
705 | .map_io = davinci_evm_map_io, | |
706 | .init_irq = davinci_evm_irq_init, | |
707 | .timer = &davinci_timer, | |
708 | .init_machine = davinci_evm_init, | |
709 | MACHINE_END |