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12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/console.h>
15#include <linux/interrupt.h>
16#include <linux/gpio.h>
17#include <linux/platform_device.h>
18#include <linux/i2c.h>
19#include <linux/i2c/pcf857x.h>
20#include <linux/i2c/at24.h>
21#include <linux/mtd/mtd.h>
22#include <linux/mtd/partitions.h>
23
24#include <asm/mach-types.h>
25#include <asm/mach/arch.h>
26
27#include <mach/cp_intc.h>
28#include <mach/mux.h>
29#include <mach/nand.h>
30#include <mach/da8xx.h>
31#include <mach/usb.h>
32#include <mach/aemif.h>
33
34#define DA830_EVM_PHY_ID ""
35
36
37
38#define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
39#define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)
40
41static const short da830_evm_usb11_pins[] = {
42 DA830_GPIO1_15, DA830_GPIO2_4,
43 -1
44};
45
46static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;
47
48static int da830_evm_usb_set_power(unsigned port, int on)
49{
50 gpio_set_value(ON_BD_USB_DRV, on);
51 return 0;
52}
53
54static int da830_evm_usb_get_power(unsigned port)
55{
56 return gpio_get_value(ON_BD_USB_DRV);
57}
58
59static int da830_evm_usb_get_oci(unsigned port)
60{
61 return !gpio_get_value(ON_BD_USB_OVC);
62}
63
64static irqreturn_t da830_evm_usb_ocic_irq(int, void *);
65
66static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
67{
68 int irq = gpio_to_irq(ON_BD_USB_OVC);
69 int error = 0;
70
71 if (handler != NULL) {
72 da830_evm_usb_ocic_handler = handler;
73
74 error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED |
75 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
76 "OHCI over-current indicator", NULL);
77 if (error)
78 printk(KERN_ERR "%s: could not request IRQ to watch "
79 "over-current indicator changes\n", __func__);
80 } else
81 free_irq(irq, NULL);
82
83 return error;
84}
85
86static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
87 .set_power = da830_evm_usb_set_power,
88 .get_power = da830_evm_usb_get_power,
89 .get_oci = da830_evm_usb_get_oci,
90 .ocic_notify = da830_evm_usb_ocic_notify,
91
92
93 .potpgt = (3 + 1) / 2,
94};
95
96static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
97{
98 da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
99 return IRQ_HANDLED;
100}
101
102static __init void da830_evm_usb_init(void)
103{
104 u32 cfgchip2;
105 int ret;
106
107
108
109
110
111 cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
112
113
114 cfgchip2 &= ~CFGCHIP2_REFFREQ;
115 cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
116
117
118
119
120
121
122 cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
123 cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX;
124
125
126
127
128
129
130
131 cfgchip2 &= ~CFGCHIP2_OTGMODE;
132#ifdef CONFIG_USB_MUSB_HOST
133 cfgchip2 |= CFGCHIP2_FORCE_HOST;
134#else
135 cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN;
136#endif
137
138 __raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
139
140
141 ret = davinci_cfg_reg(DA830_USB0_DRVVBUS);
142 if (ret)
143 pr_warning("%s: USB 2.0 PinMux setup failed: %d\n",
144 __func__, ret);
145 else {
146
147
148
149
150 ret = da8xx_register_usb20(1000, 3);
151 if (ret)
152 pr_warning("%s: USB 2.0 registration failed: %d\n",
153 __func__, ret);
154 }
155
156 ret = davinci_cfg_reg_list(da830_evm_usb11_pins);
157 if (ret) {
158 pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
159 __func__, ret);
160 return;
161 }
162
163 ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
164 if (ret) {
165 printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
166 "power control: %d\n", __func__, ret);
167 return;
168 }
169 gpio_direction_output(ON_BD_USB_DRV, 0);
170
171 ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
172 if (ret) {
173 printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
174 "over-current indicator: %d\n", __func__, ret);
175 return;
176 }
177 gpio_direction_input(ON_BD_USB_OVC);
178
179 ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
180 if (ret)
181 pr_warning("%s: USB 1.1 registration failed: %d\n",
182 __func__, ret);
183}
184
185static struct davinci_uart_config da830_evm_uart_config __initdata = {
186 .enabled_uarts = 0x7,
187};
188
189static const short da830_evm_mcasp1_pins[] = {
190 DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
191 DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
192 DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
193 DA830_AXR1_11,
194 -1
195};
196
197static u8 da830_iis_serializer_direction[] = {
198 RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
199 INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE,
200 INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
201};
202
203static struct snd_platform_data da830_evm_snd_data = {
204 .tx_dma_offset = 0x2000,
205 .rx_dma_offset = 0x2000,
206 .op_mode = DAVINCI_MCASP_IIS_MODE,
207 .num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
208 .tdm_slots = 2,
209 .serial_dir = da830_iis_serializer_direction,
210 .asp_chan_q = EVENTQ_0,
211 .version = MCASP_VERSION_2,
212 .txnumevt = 1,
213 .rxnumevt = 1,
214};
215
216
217
218
219static const short da830_evm_mmc_sd_pins[] = {
220 DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
221 DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
222 DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
223 DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2,
224 -1
225};
226
227#define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)
228#define DA830_MMCSD_CD_PIN GPIO_TO_PIN(2, 2)
229
230static int da830_evm_mmc_get_ro(int index)
231{
232 return gpio_get_value(DA830_MMCSD_WP_PIN);
233}
234
235static int da830_evm_mmc_get_cd(int index)
236{
237 return !gpio_get_value(DA830_MMCSD_CD_PIN);
238}
239
240static struct davinci_mmc_config da830_evm_mmc_config = {
241 .get_ro = da830_evm_mmc_get_ro,
242 .get_cd = da830_evm_mmc_get_cd,
243 .wires = 8,
244 .max_freq = 50000000,
245 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
246 .version = MMC_CTLR_VERSION_2,
247};
248
249static inline void da830_evm_init_mmc(void)
250{
251 int ret;
252
253 ret = davinci_cfg_reg_list(da830_evm_mmc_sd_pins);
254 if (ret) {
255 pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",
256 ret);
257 return;
258 }
259
260 ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");
261 if (ret) {
262 pr_warning("da830_evm_init: can not open GPIO %d\n",
263 DA830_MMCSD_WP_PIN);
264 return;
265 }
266 gpio_direction_input(DA830_MMCSD_WP_PIN);
267
268 ret = gpio_request(DA830_MMCSD_CD_PIN, "MMC CD\n");
269 if (ret) {
270 pr_warning("da830_evm_init: can not open GPIO %d\n",
271 DA830_MMCSD_CD_PIN);
272 return;
273 }
274 gpio_direction_input(DA830_MMCSD_CD_PIN);
275
276 ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
277 if (ret) {
278 pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",
279 ret);
280 gpio_free(DA830_MMCSD_WP_PIN);
281 }
282}
283
284
285
286
287static const short da830_evm_emif25_pins[] = {
288 DA830_EMA_D_0, DA830_EMA_D_1, DA830_EMA_D_2, DA830_EMA_D_3,
289 DA830_EMA_D_4, DA830_EMA_D_5, DA830_EMA_D_6, DA830_EMA_D_7,
290 DA830_EMA_A_0, DA830_EMA_A_1, DA830_EMA_A_2, DA830_EMA_A_3,
291 DA830_EMA_A_4, DA830_EMA_A_5, DA830_EMA_A_6, DA830_EMA_A_7,
292 DA830_EMA_A_8, DA830_EMA_A_9, DA830_EMA_A_10, DA830_EMA_A_11,
293 DA830_EMA_A_12, DA830_EMA_BA_0, DA830_EMA_BA_1, DA830_NEMA_WE,
294 DA830_NEMA_CS_2, DA830_NEMA_CS_3, DA830_NEMA_OE, DA830_EMA_WAIT_0,
295 -1
296};
297
298#if defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE)
299#define HAS_MMC 1
300#else
301#define HAS_MMC 0
302#endif
303
304#ifdef CONFIG_DA830_UI_NAND
305static struct mtd_partition da830_evm_nand_partitions[] = {
306
307 [0] = {
308 .name = "bootloader",
309 .offset = 0,
310 .size = SZ_128K,
311 .mask_flags = MTD_WRITEABLE,
312 },
313
314 [1] = {
315 .name = "params",
316 .offset = MTDPART_OFS_APPEND,
317 .size = SZ_128K,
318 .mask_flags = MTD_WRITEABLE,
319 },
320
321 [2] = {
322 .name = "kernel",
323 .offset = MTDPART_OFS_APPEND,
324 .size = SZ_2M,
325 .mask_flags = 0,
326 },
327
328 [3] = {
329 .name = "filesystem",
330 .offset = MTDPART_OFS_APPEND,
331 .size = MTDPART_SIZ_FULL,
332 .mask_flags = 0,
333 }
334};
335
336
337static uint8_t da830_evm_nand_bbt_pattern[] = { 'B', 'b', 't', '0' };
338static uint8_t da830_evm_nand_mirror_pattern[] = { '1', 't', 'b', 'B' };
339
340static struct nand_bbt_descr da830_evm_nand_bbt_main_descr = {
341 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
342 NAND_BBT_WRITE | NAND_BBT_2BIT |
343 NAND_BBT_VERSION | NAND_BBT_PERCHIP,
344 .offs = 2,
345 .len = 4,
346 .veroffs = 16,
347 .maxblocks = 4,
348 .pattern = da830_evm_nand_bbt_pattern
349};
350
351static struct nand_bbt_descr da830_evm_nand_bbt_mirror_descr = {
352 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
353 NAND_BBT_WRITE | NAND_BBT_2BIT |
354 NAND_BBT_VERSION | NAND_BBT_PERCHIP,
355 .offs = 2,
356 .len = 4,
357 .veroffs = 16,
358 .maxblocks = 4,
359 .pattern = da830_evm_nand_mirror_pattern
360};
361
362static struct davinci_aemif_timing da830_evm_nandflash_timing = {
363 .wsetup = 24,
364 .wstrobe = 21,
365 .whold = 14,
366 .rsetup = 19,
367 .rstrobe = 50,
368 .rhold = 0,
369 .ta = 20,
370};
371
372static struct davinci_nand_pdata da830_evm_nand_pdata = {
373 .parts = da830_evm_nand_partitions,
374 .nr_parts = ARRAY_SIZE(da830_evm_nand_partitions),
375 .ecc_mode = NAND_ECC_HW,
376 .ecc_bits = 4,
377 .options = NAND_USE_FLASH_BBT,
378 .bbt_td = &da830_evm_nand_bbt_main_descr,
379 .bbt_md = &da830_evm_nand_bbt_mirror_descr,
380 .timing = &da830_evm_nandflash_timing,
381};
382
383static struct resource da830_evm_nand_resources[] = {
384 [0] = {
385 .start = DA8XX_AEMIF_CS3_BASE,
386 .end = DA8XX_AEMIF_CS3_BASE + PAGE_SIZE - 1,
387 .flags = IORESOURCE_MEM,
388 },
389 [1] = {
390 .start = DA8XX_AEMIF_CTL_BASE,
391 .end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
392 .flags = IORESOURCE_MEM,
393 },
394};
395
396static struct platform_device da830_evm_nand_device = {
397 .name = "davinci_nand",
398 .id = 1,
399 .dev = {
400 .platform_data = &da830_evm_nand_pdata,
401 },
402 .num_resources = ARRAY_SIZE(da830_evm_nand_resources),
403 .resource = da830_evm_nand_resources,
404};
405
406static inline void da830_evm_init_nand(int mux_mode)
407{
408 int ret;
409
410 if (HAS_MMC) {
411 pr_warning("WARNING: both MMC/SD and NAND are "
412 "enabled, but they share AEMIF pins.\n"
413 "\tDisable MMC/SD for NAND support.\n");
414 return;
415 }
416
417 ret = davinci_cfg_reg_list(da830_evm_emif25_pins);
418 if (ret)
419 pr_warning("da830_evm_init: emif25 mux setup failed: %d\n",
420 ret);
421
422 ret = platform_device_register(&da830_evm_nand_device);
423 if (ret)
424 pr_warning("da830_evm_init: NAND device not registered.\n");
425
426 gpio_direction_output(mux_mode, 1);
427}
428#else
429static inline void da830_evm_init_nand(int mux_mode) { }
430#endif
431
432#ifdef CONFIG_DA830_UI_LCD
433static inline void da830_evm_init_lcdc(int mux_mode)
434{
435 int ret;
436
437 ret = davinci_cfg_reg_list(da830_lcdcntl_pins);
438 if (ret)
439 pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n",
440 ret);
441
442 ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
443 if (ret)
444 pr_warning("da830_evm_init: lcd setup failed: %d\n", ret);
445
446 gpio_direction_output(mux_mode, 0);
447}
448#else
449static inline void da830_evm_init_lcdc(int mux_mode) { }
450#endif
451
452static struct at24_platform_data da830_evm_i2c_eeprom_info = {
453 .byte_len = SZ_256K / 8,
454 .page_size = 64,
455 .flags = AT24_FLAG_ADDR16,
456 .setup = davinci_get_mac_addr,
457 .context = (void *)0x7f00,
458};
459
460static int __init da830_evm_ui_expander_setup(struct i2c_client *client,
461 int gpio, unsigned ngpio, void *context)
462{
463 gpio_request(gpio + 6, "UI MUX_MODE");
464
465
466 gpio_direction_output(gpio + 6, 0);
467
468 da830_evm_init_lcdc(gpio + 6);
469
470 da830_evm_init_nand(gpio + 6);
471
472 return 0;
473}
474
475static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
476 unsigned ngpio, void *context)
477{
478 gpio_free(gpio + 6);
479 return 0;
480}
481
482static struct pcf857x_platform_data __initdata da830_evm_ui_expander_info = {
483 .gpio_base = DAVINCI_N_GPIO,
484 .setup = da830_evm_ui_expander_setup,
485 .teardown = da830_evm_ui_expander_teardown,
486};
487
488static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
489 {
490 I2C_BOARD_INFO("24c256", 0x50),
491 .platform_data = &da830_evm_i2c_eeprom_info,
492 },
493 {
494 I2C_BOARD_INFO("tlv320aic3x", 0x18),
495 },
496 {
497 I2C_BOARD_INFO("pcf8574", 0x3f),
498 .platform_data = &da830_evm_ui_expander_info,
499 },
500};
501
502static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
503 .bus_freq = 100,
504 .bus_delay = 0,
505};
506
507
508
509
510
511
512static const s16 da830_dma_rsv_chans[][2] = {
513
514 { 8, 2},
515 {12, 2},
516 {24, 4},
517 {30, 2},
518 {-1, -1}
519};
520
521static const s16 da830_dma_rsv_slots[][2] = {
522
523 { 8, 2},
524 {12, 2},
525 {24, 4},
526 {30, 26},
527 {-1, -1}
528};
529
530static struct edma_rsv_info da830_edma_rsv[] = {
531 {
532 .rsv_chans = da830_dma_rsv_chans,
533 .rsv_slots = da830_dma_rsv_slots,
534 },
535};
536
537static __init void da830_evm_init(void)
538{
539 struct davinci_soc_info *soc_info = &davinci_soc_info;
540 int ret;
541
542 ret = da830_register_edma(da830_edma_rsv);
543 if (ret)
544 pr_warning("da830_evm_init: edma registration failed: %d\n",
545 ret);
546
547 ret = davinci_cfg_reg_list(da830_i2c0_pins);
548 if (ret)
549 pr_warning("da830_evm_init: i2c0 mux setup failed: %d\n",
550 ret);
551
552 ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
553 if (ret)
554 pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
555 ret);
556
557 da830_evm_usb_init();
558
559 soc_info->emac_pdata->rmii_en = 1;
560 soc_info->emac_pdata->phy_id = DA830_EVM_PHY_ID;
561
562 ret = davinci_cfg_reg_list(da830_cpgmac_pins);
563 if (ret)
564 pr_warning("da830_evm_init: cpgmac mux setup failed: %d\n",
565 ret);
566
567 ret = da8xx_register_emac();
568 if (ret)
569 pr_warning("da830_evm_init: emac registration failed: %d\n",
570 ret);
571
572 ret = da8xx_register_watchdog();
573 if (ret)
574 pr_warning("da830_evm_init: watchdog registration failed: %d\n",
575 ret);
576
577 davinci_serial_init(&da830_evm_uart_config);
578 i2c_register_board_info(1, da830_evm_i2c_devices,
579 ARRAY_SIZE(da830_evm_i2c_devices));
580
581 ret = davinci_cfg_reg_list(da830_evm_mcasp1_pins);
582 if (ret)
583 pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n",
584 ret);
585
586 da8xx_register_mcasp(1, &da830_evm_snd_data);
587
588 da830_evm_init_mmc();
589
590 ret = da8xx_register_rtc();
591 if (ret)
592 pr_warning("da830_evm_init: rtc setup failed: %d\n", ret);
593}
594
595#ifdef CONFIG_SERIAL_8250_CONSOLE
596static int __init da830_evm_console_init(void)
597{
598 if (!machine_is_davinci_da830_evm())
599 return 0;
600
601 return add_preferred_console("ttyS", 2, "115200");
602}
603console_initcall(da830_evm_console_init);
604#endif
605
606static void __init da830_evm_map_io(void)
607{
608 da830_init();
609}
610
611MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137/AM17x EVM")
612 .boot_params = (DA8XX_DDR_BASE + 0x100),
613 .map_io = da830_evm_map_io,
614 .init_irq = cp_intc_init,
615 .timer = &davinci_timer,
616 .init_machine = da830_evm_init,
617MACHINE_END
618
