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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/platform_data/at24.h>
21#include <linux/mtd/mtd.h>
22#include <linux/mtd/partitions.h>
23#include <linux/spi/spi.h>
24#include <linux/spi/flash.h>
25#include <linux/platform_data/gpio-davinci.h>
26#include <linux/platform_data/mtd-davinci.h>
27#include <linux/platform_data/mtd-davinci-aemif.h>
28#include <linux/platform_data/spi-davinci.h>
29#include <linux/platform_data/usb-davinci.h>
30
31#include <asm/mach-types.h>
32#include <asm/mach/arch.h>
33
34#include <mach/common.h>
35#include "cp_intc.h"
36#include <mach/mux.h>
37#include <mach/da8xx.h>
38
39#define DA830_EVM_PHY_ID ""
40
41
42
43#define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
44#define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)
45
46static const short da830_evm_usb11_pins[] = {
47 DA830_GPIO1_15, DA830_GPIO2_4,
48 -1
49};
50
51static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;
52
53static int da830_evm_usb_set_power(unsigned port, int on)
54{
55 gpio_set_value(ON_BD_USB_DRV, on);
56 return 0;
57}
58
59static int da830_evm_usb_get_power(unsigned port)
60{
61 return gpio_get_value(ON_BD_USB_DRV);
62}
63
64static int da830_evm_usb_get_oci(unsigned port)
65{
66 return !gpio_get_value(ON_BD_USB_OVC);
67}
68
69static irqreturn_t da830_evm_usb_ocic_irq(int, void *);
70
71static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
72{
73 int irq = gpio_to_irq(ON_BD_USB_OVC);
74 int error = 0;
75
76 if (handler != NULL) {
77 da830_evm_usb_ocic_handler = handler;
78
79 error = request_irq(irq, da830_evm_usb_ocic_irq,
80 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
81 "OHCI over-current indicator", NULL);
82 if (error)
83 pr_err("%s: could not request IRQ to watch over-current indicator changes\n",
84 __func__);
85 } else
86 free_irq(irq, NULL);
87
88 return error;
89}
90
91static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
92 .set_power = da830_evm_usb_set_power,
93 .get_power = da830_evm_usb_get_power,
94 .get_oci = da830_evm_usb_get_oci,
95 .ocic_notify = da830_evm_usb_ocic_notify,
96
97
98 .potpgt = (3 + 1) / 2,
99};
100
101static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
102{
103 da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
104 return IRQ_HANDLED;
105}
106
107static __init void da830_evm_usb_init(void)
108{
109 u32 cfgchip2;
110 int ret;
111
112
113
114
115
116 cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
117
118
119 cfgchip2 &= ~CFGCHIP2_REFFREQ;
120 cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
121
122
123
124
125
126
127 cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
128 cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX;
129
130
131
132
133
134
135
136 cfgchip2 &= ~CFGCHIP2_OTGMODE;
137#ifdef CONFIG_USB_MUSB_HOST
138 cfgchip2 |= CFGCHIP2_FORCE_HOST;
139#else
140 cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN;
141#endif
142
143 __raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
144
145
146 ret = davinci_cfg_reg(DA830_USB0_DRVVBUS);
147 if (ret)
148 pr_warn("%s: USB 2.0 PinMux setup failed: %d\n", __func__, ret);
149 else {
150
151
152
153
154 ret = da8xx_register_usb20(1000, 3);
155 if (ret)
156 pr_warn("%s: USB 2.0 registration failed: %d\n",
157 __func__, ret);
158 }
159
160 ret = davinci_cfg_reg_list(da830_evm_usb11_pins);
161 if (ret) {
162 pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret);
163 return;
164 }
165
166 ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
167 if (ret) {
168 pr_err("%s: failed to request GPIO for USB 1.1 port power control: %d\n",
169 __func__, ret);
170 return;
171 }
172 gpio_direction_output(ON_BD_USB_DRV, 0);
173
174 ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
175 if (ret) {
176 pr_err("%s: failed to request GPIO for USB 1.1 port over-current indicator: %d\n",
177 __func__, ret);
178 return;
179 }
180 gpio_direction_input(ON_BD_USB_OVC);
181
182 ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
183 if (ret)
184 pr_warn("%s: USB 1.1 registration failed: %d\n", __func__, ret);
185}
186
187static const short da830_evm_mcasp1_pins[] = {
188 DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
189 DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
190 DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
191 DA830_AXR1_11,
192 -1
193};
194
195static u8 da830_iis_serializer_direction[] = {
196 RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
197 INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE,
198 INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
199};
200
201static struct snd_platform_data da830_evm_snd_data = {
202 .tx_dma_offset = 0x2000,
203 .rx_dma_offset = 0x2000,
204 .op_mode = DAVINCI_MCASP_IIS_MODE,
205 .num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
206 .tdm_slots = 2,
207 .serial_dir = da830_iis_serializer_direction,
208 .asp_chan_q = EVENTQ_0,
209 .version = MCASP_VERSION_2,
210 .txnumevt = 1,
211 .rxnumevt = 1,
212};
213
214
215
216
217static const short da830_evm_mmc_sd_pins[] = {
218 DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
219 DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
220 DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
221 DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2,
222 -1
223};
224
225#define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)
226#define DA830_MMCSD_CD_PIN GPIO_TO_PIN(2, 2)
227
228static int da830_evm_mmc_get_ro(int index)
229{
230 return gpio_get_value(DA830_MMCSD_WP_PIN);
231}
232
233static int da830_evm_mmc_get_cd(int index)
234{
235 return !gpio_get_value(DA830_MMCSD_CD_PIN);
236}
237
238static struct davinci_mmc_config da830_evm_mmc_config = {
239 .get_ro = da830_evm_mmc_get_ro,
240 .get_cd = da830_evm_mmc_get_cd,
241 .wires = 8,
242 .max_freq = 50000000,
243 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
244};
245
246static inline void da830_evm_init_mmc(void)
247{
248 int ret;
249
250 ret = davinci_cfg_reg_list(da830_evm_mmc_sd_pins);
251 if (ret) {
252 pr_warn("%s: mmc/sd mux setup failed: %d\n", __func__, ret);
253 return;
254 }
255
256 ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");
257 if (ret) {
258 pr_warn("%s: can not open GPIO %d\n",
259 __func__, DA830_MMCSD_WP_PIN);
260 return;
261 }
262 gpio_direction_input(DA830_MMCSD_WP_PIN);
263
264 ret = gpio_request(DA830_MMCSD_CD_PIN, "MMC CD\n");
265 if (ret) {
266 pr_warn("%s: can not open GPIO %d\n",
267 __func__, DA830_MMCSD_CD_PIN);
268 return;
269 }
270 gpio_direction_input(DA830_MMCSD_CD_PIN);
271
272 ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
273 if (ret) {
274 pr_warn("%s: mmc/sd registration failed: %d\n", __func__, ret);
275 gpio_free(DA830_MMCSD_WP_PIN);
276 }
277}
278
279
280
281
282static const short da830_evm_emif25_pins[] = {
283 DA830_EMA_D_0, DA830_EMA_D_1, DA830_EMA_D_2, DA830_EMA_D_3,
284 DA830_EMA_D_4, DA830_EMA_D_5, DA830_EMA_D_6, DA830_EMA_D_7,
285 DA830_EMA_A_0, DA830_EMA_A_1, DA830_EMA_A_2, DA830_EMA_A_3,
286 DA830_EMA_A_4, DA830_EMA_A_5, DA830_EMA_A_6, DA830_EMA_A_7,
287 DA830_EMA_A_8, DA830_EMA_A_9, DA830_EMA_A_10, DA830_EMA_A_11,
288 DA830_EMA_A_12, DA830_EMA_BA_0, DA830_EMA_BA_1, DA830_NEMA_WE,
289 DA830_NEMA_CS_2, DA830_NEMA_CS_3, DA830_NEMA_OE, DA830_EMA_WAIT_0,
290 -1
291};
292
293#define HAS_MMC IS_ENABLED(CONFIG_MMC_DAVINCI)
294
295#ifdef CONFIG_DA830_UI_NAND
296static struct mtd_partition da830_evm_nand_partitions[] = {
297
298 [0] = {
299 .name = "bootloader",
300 .offset = 0,
301 .size = SZ_128K,
302 .mask_flags = MTD_WRITEABLE,
303 },
304
305 [1] = {
306 .name = "params",
307 .offset = MTDPART_OFS_APPEND,
308 .size = SZ_128K,
309 .mask_flags = MTD_WRITEABLE,
310 },
311
312 [2] = {
313 .name = "kernel",
314 .offset = MTDPART_OFS_APPEND,
315 .size = SZ_2M,
316 .mask_flags = 0,
317 },
318
319 [3] = {
320 .name = "filesystem",
321 .offset = MTDPART_OFS_APPEND,
322 .size = MTDPART_SIZ_FULL,
323 .mask_flags = 0,
324 }
325};
326
327
328static uint8_t da830_evm_nand_bbt_pattern[] = { 'B', 'b', 't', '0' };
329static uint8_t da830_evm_nand_mirror_pattern[] = { '1', 't', 'b', 'B' };
330
331static struct nand_bbt_descr da830_evm_nand_bbt_main_descr = {
332 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
333 NAND_BBT_WRITE | NAND_BBT_2BIT |
334 NAND_BBT_VERSION | NAND_BBT_PERCHIP,
335 .offs = 2,
336 .len = 4,
337 .veroffs = 16,
338 .maxblocks = 4,
339 .pattern = da830_evm_nand_bbt_pattern
340};
341
342static struct nand_bbt_descr da830_evm_nand_bbt_mirror_descr = {
343 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
344 NAND_BBT_WRITE | NAND_BBT_2BIT |
345 NAND_BBT_VERSION | NAND_BBT_PERCHIP,
346 .offs = 2,
347 .len = 4,
348 .veroffs = 16,
349 .maxblocks = 4,
350 .pattern = da830_evm_nand_mirror_pattern
351};
352
353static struct davinci_aemif_timing da830_evm_nandflash_timing = {
354 .wsetup = 24,
355 .wstrobe = 21,
356 .whold = 14,
357 .rsetup = 19,
358 .rstrobe = 50,
359 .rhold = 0,
360 .ta = 20,
361};
362
363static struct davinci_nand_pdata da830_evm_nand_pdata = {
364 .parts = da830_evm_nand_partitions,
365 .nr_parts = ARRAY_SIZE(da830_evm_nand_partitions),
366 .ecc_mode = NAND_ECC_HW,
367 .ecc_bits = 4,
368 .bbt_options = NAND_BBT_USE_FLASH,
369 .bbt_td = &da830_evm_nand_bbt_main_descr,
370 .bbt_md = &da830_evm_nand_bbt_mirror_descr,
371 .timing = &da830_evm_nandflash_timing,
372};
373
374static struct resource da830_evm_nand_resources[] = {
375 [0] = {
376 .start = DA8XX_AEMIF_CS3_BASE,
377 .end = DA8XX_AEMIF_CS3_BASE + PAGE_SIZE - 1,
378 .flags = IORESOURCE_MEM,
379 },
380 [1] = {
381 .start = DA8XX_AEMIF_CTL_BASE,
382 .end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
383 .flags = IORESOURCE_MEM,
384 },
385};
386
387static struct platform_device da830_evm_nand_device = {
388 .name = "davinci_nand",
389 .id = 1,
390 .dev = {
391 .platform_data = &da830_evm_nand_pdata,
392 },
393 .num_resources = ARRAY_SIZE(da830_evm_nand_resources),
394 .resource = da830_evm_nand_resources,
395};
396
397static inline void da830_evm_init_nand(int mux_mode)
398{
399 int ret;
400
401 if (HAS_MMC) {
402 pr_warn("WARNING: both MMC/SD and NAND are enabled, but they share AEMIF pins\n"
403 "\tDisable MMC/SD for NAND support\n");
404 return;
405 }
406
407 ret = davinci_cfg_reg_list(da830_evm_emif25_pins);
408 if (ret)
409 pr_warn("%s: emif25 mux setup failed: %d\n", __func__, ret);
410
411 ret = platform_device_register(&da830_evm_nand_device);
412 if (ret)
413 pr_warn("%s: NAND device not registered\n", __func__);
414
415 if (davinci_aemif_setup(&da830_evm_nand_device))
416 pr_warn("%s: Cannot configure AEMIF\n", __func__);
417
418 gpio_direction_output(mux_mode, 1);
419}
420#else
421static inline void da830_evm_init_nand(int mux_mode) { }
422#endif
423
424#ifdef CONFIG_DA830_UI_LCD
425static inline void da830_evm_init_lcdc(int mux_mode)
426{
427 int ret;
428
429 ret = davinci_cfg_reg_list(da830_lcdcntl_pins);
430 if (ret)
431 pr_warn("%s: lcdcntl mux setup failed: %d\n", __func__, ret);
432
433 ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
434 if (ret)
435 pr_warn("%s: lcd setup failed: %d\n", __func__, ret);
436
437 gpio_direction_output(mux_mode, 0);
438}
439#else
440static inline void da830_evm_init_lcdc(int mux_mode) { }
441#endif
442
443static struct at24_platform_data da830_evm_i2c_eeprom_info = {
444 .byte_len = SZ_256K / 8,
445 .page_size = 64,
446 .flags = AT24_FLAG_ADDR16,
447 .setup = davinci_get_mac_addr,
448 .context = (void *)0x7f00,
449};
450
451static int __init da830_evm_ui_expander_setup(struct i2c_client *client,
452 int gpio, unsigned ngpio, void *context)
453{
454 gpio_request(gpio + 6, "UI MUX_MODE");
455
456
457 gpio_direction_output(gpio + 6, 0);
458
459 da830_evm_init_lcdc(gpio + 6);
460
461 da830_evm_init_nand(gpio + 6);
462
463 return 0;
464}
465
466static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
467 unsigned ngpio, void *context)
468{
469 gpio_free(gpio + 6);
470 return 0;
471}
472
473static struct pcf857x_platform_data __initdata da830_evm_ui_expander_info = {
474 .gpio_base = DAVINCI_N_GPIO,
475 .setup = da830_evm_ui_expander_setup,
476 .teardown = da830_evm_ui_expander_teardown,
477};
478
479static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
480 {
481 I2C_BOARD_INFO("24c256", 0x50),
482 .platform_data = &da830_evm_i2c_eeprom_info,
483 },
484 {
485 I2C_BOARD_INFO("tlv320aic3x", 0x18),
486 },
487 {
488 I2C_BOARD_INFO("pcf8574", 0x3f),
489 .platform_data = &da830_evm_ui_expander_info,
490 },
491};
492
493static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
494 .bus_freq = 100,
495 .bus_delay = 0,
496};
497
498
499
500
501
502
503static const s16 da830_dma_rsv_chans[][2] = {
504
505 { 8, 2},
506 {12, 2},
507 {24, 4},
508 {30, 2},
509 {-1, -1}
510};
511
512static const s16 da830_dma_rsv_slots[][2] = {
513
514 { 8, 2},
515 {12, 2},
516 {24, 4},
517 {30, 26},
518 {-1, -1}
519};
520
521static struct edma_rsv_info da830_edma_rsv[] = {
522 {
523 .rsv_chans = da830_dma_rsv_chans,
524 .rsv_slots = da830_dma_rsv_slots,
525 },
526};
527
528static struct mtd_partition da830evm_spiflash_part[] = {
529 [0] = {
530 .name = "DSP-UBL",
531 .offset = 0,
532 .size = SZ_8K,
533 .mask_flags = MTD_WRITEABLE,
534 },
535 [1] = {
536 .name = "ARM-UBL",
537 .offset = MTDPART_OFS_APPEND,
538 .size = SZ_16K + SZ_8K,
539 .mask_flags = MTD_WRITEABLE,
540 },
541 [2] = {
542 .name = "U-Boot",
543 .offset = MTDPART_OFS_APPEND,
544 .size = SZ_256K - SZ_32K,
545 .mask_flags = MTD_WRITEABLE,
546 },
547 [3] = {
548 .name = "U-Boot-Environment",
549 .offset = MTDPART_OFS_APPEND,
550 .size = SZ_16K,
551 .mask_flags = 0,
552 },
553 [4] = {
554 .name = "Kernel",
555 .offset = MTDPART_OFS_APPEND,
556 .size = MTDPART_SIZ_FULL,
557 .mask_flags = 0,
558 },
559};
560
561static struct flash_platform_data da830evm_spiflash_data = {
562 .name = "m25p80",
563 .parts = da830evm_spiflash_part,
564 .nr_parts = ARRAY_SIZE(da830evm_spiflash_part),
565 .type = "w25x32",
566};
567
568static struct davinci_spi_config da830evm_spiflash_cfg = {
569 .io_type = SPI_IO_TYPE_DMA,
570 .c2tdelay = 8,
571 .t2cdelay = 8,
572};
573
574static struct spi_board_info da830evm_spi_info[] = {
575 {
576 .modalias = "m25p80",
577 .platform_data = &da830evm_spiflash_data,
578 .controller_data = &da830evm_spiflash_cfg,
579 .mode = SPI_MODE_0,
580 .max_speed_hz = 30000000,
581 .bus_num = 0,
582 .chip_select = 0,
583 },
584};
585
586static __init void da830_evm_init(void)
587{
588 struct davinci_soc_info *soc_info = &davinci_soc_info;
589 int ret;
590
591 ret = da830_register_gpio();
592 if (ret)
593 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
594
595 ret = da830_register_edma(da830_edma_rsv);
596 if (ret)
597 pr_warn("%s: edma registration failed: %d\n", __func__, ret);
598
599 ret = davinci_cfg_reg_list(da830_i2c0_pins);
600 if (ret)
601 pr_warn("%s: i2c0 mux setup failed: %d\n", __func__, ret);
602
603 ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
604 if (ret)
605 pr_warn("%s: i2c0 registration failed: %d\n", __func__, ret);
606
607 da830_evm_usb_init();
608
609 soc_info->emac_pdata->rmii_en = 1;
610 soc_info->emac_pdata->phy_id = DA830_EVM_PHY_ID;
611
612 ret = davinci_cfg_reg_list(da830_cpgmac_pins);
613 if (ret)
614 pr_warn("%s: cpgmac mux setup failed: %d\n", __func__, ret);
615
616 ret = da8xx_register_emac();
617 if (ret)
618 pr_warn("%s: emac registration failed: %d\n", __func__, ret);
619
620 ret = da8xx_register_watchdog();
621 if (ret)
622 pr_warn("%s: watchdog registration failed: %d\n",
623 __func__, ret);
624
625 davinci_serial_init(da8xx_serial_device);
626 i2c_register_board_info(1, da830_evm_i2c_devices,
627 ARRAY_SIZE(da830_evm_i2c_devices));
628
629 ret = davinci_cfg_reg_list(da830_evm_mcasp1_pins);
630 if (ret)
631 pr_warn("%s: mcasp1 mux setup failed: %d\n", __func__, ret);
632
633 da8xx_register_mcasp(1, &da830_evm_snd_data);
634
635 da830_evm_init_mmc();
636
637 ret = da8xx_register_rtc();
638 if (ret)
639 pr_warn("%s: rtc setup failed: %d\n", __func__, ret);
640
641 ret = spi_register_board_info(da830evm_spi_info,
642 ARRAY_SIZE(da830evm_spi_info));
643 if (ret)
644 pr_warn("%s: spi info registration failed: %d\n",
645 __func__, ret);
646
647 ret = da8xx_register_spi_bus(0, ARRAY_SIZE(da830evm_spi_info));
648 if (ret)
649 pr_warn("%s: spi 0 registration failed: %d\n", __func__, ret);
650}
651
652#ifdef CONFIG_SERIAL_8250_CONSOLE
653static int __init da830_evm_console_init(void)
654{
655 if (!machine_is_davinci_da830_evm())
656 return 0;
657
658 return add_preferred_console("ttyS", 2, "115200");
659}
660console_initcall(da830_evm_console_init);
661#endif
662
663static void __init da830_evm_map_io(void)
664{
665 da830_init();
666}
667
668MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137/AM17x EVM")
669 .atag_offset = 0x100,
670 .map_io = da830_evm_map_io,
671 .init_irq = cp_intc_init,
672 .init_time = davinci_timer_init,
673 .init_machine = da830_evm_init,
674 .init_late = davinci_init_late,
675 .dma_zone_size = SZ_128M,
676 .restart = da8xx_restart,
677MACHINE_END
678
