2 * TI DA830/OMAP L137 EVM board
4 * Author: Mark A. Greer <mgreer@mvista.com>
5 * Derived from: arch/arm/mach-davinci/board-dm644x-evm.c
7 * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
8 * the terms of the GNU General Public License version 2. This program
9 * is licensed "as is" without any warranty of any kind, whether express
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>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
27 #include <mach/cp_intc.h>
29 #include <mach/nand.h>
30 #include <mach/da8xx.h>
33 #define DA830_EVM_PHY_MASK 0x0
34 #define DA830_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */
37 * USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4].
39 #define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
40 #define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)
42 static const short da830_evm_usb11_pins
[] = {
43 DA830_GPIO1_15
, DA830_GPIO2_4
,
47 static da8xx_ocic_handler_t da830_evm_usb_ocic_handler
;
49 static int da830_evm_usb_set_power(unsigned port
, int on
)
51 gpio_set_value(ON_BD_USB_DRV
, on
);
55 static int da830_evm_usb_get_power(unsigned port
)
57 return gpio_get_value(ON_BD_USB_DRV
);
60 static int da830_evm_usb_get_oci(unsigned port
)
62 return !gpio_get_value(ON_BD_USB_OVC
);
65 static irqreturn_t
da830_evm_usb_ocic_irq(int, void *);
67 static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler
)
69 int irq
= gpio_to_irq(ON_BD_USB_OVC
);
72 if (handler
!= NULL
) {
73 da830_evm_usb_ocic_handler
= handler
;
75 error
= request_irq(irq
, da830_evm_usb_ocic_irq
, IRQF_DISABLED
|
76 IRQF_TRIGGER_RISING
| IRQF_TRIGGER_FALLING
,
77 "OHCI over-current indicator", NULL
);
79 printk(KERN_ERR
"%s: could not request IRQ to watch "
80 "over-current indicator changes\n", __func__
);
87 static struct da8xx_ohci_root_hub da830_evm_usb11_pdata
= {
88 .set_power
= da830_evm_usb_set_power
,
89 .get_power
= da830_evm_usb_get_power
,
90 .get_oci
= da830_evm_usb_get_oci
,
91 .ocic_notify
= da830_evm_usb_ocic_notify
,
93 /* TPS2065 switch @ 5V */
94 .potpgt
= (3 + 1) / 2, /* 3 ms max */
97 static irqreturn_t
da830_evm_usb_ocic_irq(int irq
, void *dev_id
)
99 da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata
, 1);
103 static __init
void da830_evm_usb_init(void)
109 * Set up USB clock/mode in the CFGCHIP2 register.
110 * FYI: CFGCHIP2 is 0x0000ef00 initially.
112 cfgchip2
= __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG
));
114 /* USB2.0 PHY reference clock is 24 MHz */
115 cfgchip2
&= ~CFGCHIP2_REFFREQ
;
116 cfgchip2
|= CFGCHIP2_REFFREQ_24MHZ
;
119 * Select internal reference clock for USB 2.0 PHY
120 * and use it as a clock source for USB 1.1 PHY
121 * (this is the default setting anyway).
123 cfgchip2
&= ~CFGCHIP2_USB1PHYCLKMUX
;
124 cfgchip2
|= CFGCHIP2_USB2PHYCLKMUX
;
127 * We have to override VBUS/ID signals when MUSB is configured into the
128 * host-only mode -- ID pin will float if no cable is connected, so the
129 * controller won't be able to drive VBUS thinking that it's a B-device.
130 * Otherwise, we want to use the OTG mode and enable VBUS comparators.
132 cfgchip2
&= ~CFGCHIP2_OTGMODE
;
133 #ifdef CONFIG_USB_MUSB_HOST
134 cfgchip2
|= CFGCHIP2_FORCE_HOST
;
136 cfgchip2
|= CFGCHIP2_SESENDEN
| CFGCHIP2_VBDTCTEN
;
139 __raw_writel(cfgchip2
, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG
));
141 /* USB_REFCLKIN is not used. */
142 ret
= davinci_cfg_reg(DA830_USB0_DRVVBUS
);
144 pr_warning("%s: USB 2.0 PinMux setup failed: %d\n",
148 * TPS2065 switch @ 5V supplies 1 A (sustains 1.5 A),
149 * with the power on to power good time of 3 ms.
151 ret
= da8xx_register_usb20(1000, 3);
153 pr_warning("%s: USB 2.0 registration failed: %d\n",
157 ret
= davinci_cfg_reg_list(da830_evm_usb11_pins
);
159 pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
164 ret
= gpio_request(ON_BD_USB_DRV
, "ON_BD_USB_DRV");
166 printk(KERN_ERR
"%s: failed to request GPIO for USB 1.1 port "
167 "power control: %d\n", __func__
, ret
);
170 gpio_direction_output(ON_BD_USB_DRV
, 0);
172 ret
= gpio_request(ON_BD_USB_OVC
, "ON_BD_USB_OVC");
174 printk(KERN_ERR
"%s: failed to request GPIO for USB 1.1 port "
175 "over-current indicator: %d\n", __func__
, ret
);
178 gpio_direction_input(ON_BD_USB_OVC
);
180 ret
= da8xx_register_usb11(&da830_evm_usb11_pdata
);
182 pr_warning("%s: USB 1.1 registration failed: %d\n",
186 static struct davinci_uart_config da830_evm_uart_config __initdata
= {
187 .enabled_uarts
= 0x7,
190 static const short da830_evm_mcasp1_pins
[] = {
191 DA830_AHCLKX1
, DA830_ACLKX1
, DA830_AFSX1
, DA830_AHCLKR1
, DA830_AFSR1
,
192 DA830_AMUTE1
, DA830_AXR1_0
, DA830_AXR1_1
, DA830_AXR1_2
, DA830_AXR1_5
,
193 DA830_ACLKR1
, DA830_AXR1_6
, DA830_AXR1_7
, DA830_AXR1_8
, DA830_AXR1_10
,
198 static u8 da830_iis_serializer_direction
[] = {
199 RX_MODE
, INACTIVE_MODE
, INACTIVE_MODE
, INACTIVE_MODE
,
200 INACTIVE_MODE
, TX_MODE
, INACTIVE_MODE
, INACTIVE_MODE
,
201 INACTIVE_MODE
, INACTIVE_MODE
, INACTIVE_MODE
, INACTIVE_MODE
,
204 static struct snd_platform_data da830_evm_snd_data
= {
205 .tx_dma_offset
= 0x2000,
206 .rx_dma_offset
= 0x2000,
207 .op_mode
= DAVINCI_MCASP_IIS_MODE
,
208 .num_serializer
= ARRAY_SIZE(da830_iis_serializer_direction
),
210 .serial_dir
= da830_iis_serializer_direction
,
211 .eventq_no
= EVENTQ_0
,
212 .version
= MCASP_VERSION_2
,
218 * GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.
220 static const short da830_evm_mmc_sd_pins
[] = {
221 DA830_MMCSD_DAT_0
, DA830_MMCSD_DAT_1
, DA830_MMCSD_DAT_2
,
222 DA830_MMCSD_DAT_3
, DA830_MMCSD_DAT_4
, DA830_MMCSD_DAT_5
,
223 DA830_MMCSD_DAT_6
, DA830_MMCSD_DAT_7
, DA830_MMCSD_CLK
,
224 DA830_MMCSD_CMD
, DA830_GPIO2_1
, DA830_GPIO2_2
,
228 #define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)
229 #define DA830_MMCSD_CD_PIN GPIO_TO_PIN(2, 2)
231 static int da830_evm_mmc_get_ro(int index
)
233 return gpio_get_value(DA830_MMCSD_WP_PIN
);
236 static int da830_evm_mmc_get_cd(int index
)
238 return !gpio_get_value(DA830_MMCSD_CD_PIN
);
241 static struct davinci_mmc_config da830_evm_mmc_config
= {
242 .get_ro
= da830_evm_mmc_get_ro
,
243 .get_cd
= da830_evm_mmc_get_cd
,
245 .max_freq
= 50000000,
246 .caps
= MMC_CAP_MMC_HIGHSPEED
| MMC_CAP_SD_HIGHSPEED
,
247 .version
= MMC_CTLR_VERSION_2
,
250 static inline void da830_evm_init_mmc(void)
254 ret
= davinci_cfg_reg_list(da830_evm_mmc_sd_pins
);
256 pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",
261 ret
= gpio_request(DA830_MMCSD_WP_PIN
, "MMC WP");
263 pr_warning("da830_evm_init: can not open GPIO %d\n",
267 gpio_direction_input(DA830_MMCSD_WP_PIN
);
269 ret
= gpio_request(DA830_MMCSD_CD_PIN
, "MMC CD\n");
271 pr_warning("da830_evm_init: can not open GPIO %d\n",
275 gpio_direction_input(DA830_MMCSD_CD_PIN
);
277 ret
= da8xx_register_mmcsd0(&da830_evm_mmc_config
);
279 pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",
281 gpio_free(DA830_MMCSD_WP_PIN
);
286 * UI board NAND/NOR flashes only use 8-bit data bus.
288 static const short da830_evm_emif25_pins
[] = {
289 DA830_EMA_D_0
, DA830_EMA_D_1
, DA830_EMA_D_2
, DA830_EMA_D_3
,
290 DA830_EMA_D_4
, DA830_EMA_D_5
, DA830_EMA_D_6
, DA830_EMA_D_7
,
291 DA830_EMA_A_0
, DA830_EMA_A_1
, DA830_EMA_A_2
, DA830_EMA_A_3
,
292 DA830_EMA_A_4
, DA830_EMA_A_5
, DA830_EMA_A_6
, DA830_EMA_A_7
,
293 DA830_EMA_A_8
, DA830_EMA_A_9
, DA830_EMA_A_10
, DA830_EMA_A_11
,
294 DA830_EMA_A_12
, DA830_EMA_BA_0
, DA830_EMA_BA_1
, DA830_NEMA_WE
,
295 DA830_NEMA_CS_2
, DA830_NEMA_CS_3
, DA830_NEMA_OE
, DA830_EMA_WAIT_0
,
299 #if defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE)
305 #ifdef CONFIG_DA830_UI_NAND
306 static struct mtd_partition da830_evm_nand_partitions
[] = {
307 /* bootloader (U-Boot, etc) in first sector */
309 .name
= "bootloader",
312 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
314 /* bootloader params in the next sector */
317 .offset
= MTDPART_OFS_APPEND
,
319 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
324 .offset
= MTDPART_OFS_APPEND
,
330 .name
= "filesystem",
331 .offset
= MTDPART_OFS_APPEND
,
332 .size
= MTDPART_SIZ_FULL
,
337 /* flash bbt decriptors */
338 static uint8_t da830_evm_nand_bbt_pattern
[] = { 'B', 'b', 't', '0' };
339 static uint8_t da830_evm_nand_mirror_pattern
[] = { '1', 't', 'b', 'B' };
341 static struct nand_bbt_descr da830_evm_nand_bbt_main_descr
= {
342 .options
= NAND_BBT_LASTBLOCK
| NAND_BBT_CREATE
|
343 NAND_BBT_WRITE
| NAND_BBT_2BIT
|
344 NAND_BBT_VERSION
| NAND_BBT_PERCHIP
,
349 .pattern
= da830_evm_nand_bbt_pattern
352 static struct nand_bbt_descr da830_evm_nand_bbt_mirror_descr
= {
353 .options
= NAND_BBT_LASTBLOCK
| NAND_BBT_CREATE
|
354 NAND_BBT_WRITE
| NAND_BBT_2BIT
|
355 NAND_BBT_VERSION
| NAND_BBT_PERCHIP
,
360 .pattern
= da830_evm_nand_mirror_pattern
363 static 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
,
368 .options
= NAND_USE_FLASH_BBT
,
369 .bbt_td
= &da830_evm_nand_bbt_main_descr
,
370 .bbt_md
= &da830_evm_nand_bbt_mirror_descr
,
373 static struct resource da830_evm_nand_resources
[] = {
374 [0] = { /* First memory resource is NAND I/O window */
375 .start
= DA8XX_AEMIF_CS3_BASE
,
376 .end
= DA8XX_AEMIF_CS3_BASE
+ PAGE_SIZE
- 1,
377 .flags
= IORESOURCE_MEM
,
379 [1] = { /* Second memory resource is AEMIF control registers */
380 .start
= DA8XX_AEMIF_CTL_BASE
,
381 .end
= DA8XX_AEMIF_CTL_BASE
+ SZ_32K
- 1,
382 .flags
= IORESOURCE_MEM
,
386 static struct platform_device da830_evm_nand_device
= {
387 .name
= "davinci_nand",
390 .platform_data
= &da830_evm_nand_pdata
,
392 .num_resources
= ARRAY_SIZE(da830_evm_nand_resources
),
393 .resource
= da830_evm_nand_resources
,
396 static inline void da830_evm_init_nand(int mux_mode
)
401 pr_warning("WARNING: both MMC/SD and NAND are "
402 "enabled, but they share AEMIF pins.\n"
403 "\tDisable MMC/SD for NAND support.\n");
407 ret
= davinci_cfg_reg_list(da830_evm_emif25_pins
);
409 pr_warning("da830_evm_init: emif25 mux setup failed: %d\n",
412 ret
= platform_device_register(&da830_evm_nand_device
);
414 pr_warning("da830_evm_init: NAND device not registered.\n");
416 gpio_direction_output(mux_mode
, 1);
419 static inline void da830_evm_init_nand(int mux_mode
) { }
422 #ifdef CONFIG_DA830_UI_LCD
423 static inline void da830_evm_init_lcdc(int mux_mode
)
427 ret
= davinci_cfg_reg_list(da830_lcdcntl_pins
);
429 pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n",
432 ret
= da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata
);
434 pr_warning("da830_evm_init: lcd setup failed: %d\n", ret
);
436 gpio_direction_output(mux_mode
, 0);
439 static inline void da830_evm_init_lcdc(int mux_mode
) { }
442 static struct at24_platform_data da830_evm_i2c_eeprom_info
= {
443 .byte_len
= SZ_256K
/ 8,
445 .flags
= AT24_FLAG_ADDR16
,
446 .setup
= davinci_get_mac_addr
,
447 .context
= (void *)0x7f00,
450 static int __init
da830_evm_ui_expander_setup(struct i2c_client
*client
,
451 int gpio
, unsigned ngpio
, void *context
)
453 gpio_request(gpio
+ 6, "UI MUX_MODE");
455 /* Drive mux mode low to match the default without UI card */
456 gpio_direction_output(gpio
+ 6, 0);
458 da830_evm_init_lcdc(gpio
+ 6);
460 da830_evm_init_nand(gpio
+ 6);
465 static int da830_evm_ui_expander_teardown(struct i2c_client
*client
, int gpio
,
466 unsigned ngpio
, void *context
)
472 static struct pcf857x_platform_data __initdata da830_evm_ui_expander_info
= {
473 .gpio_base
= DAVINCI_N_GPIO
,
474 .setup
= da830_evm_ui_expander_setup
,
475 .teardown
= da830_evm_ui_expander_teardown
,
478 static struct i2c_board_info __initdata da830_evm_i2c_devices
[] = {
480 I2C_BOARD_INFO("24c256", 0x50),
481 .platform_data
= &da830_evm_i2c_eeprom_info
,
484 I2C_BOARD_INFO("tlv320aic3x", 0x18),
487 I2C_BOARD_INFO("pcf8574", 0x3f),
488 .platform_data
= &da830_evm_ui_expander_info
,
492 static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata
= {
493 .bus_freq
= 100, /* kHz */
494 .bus_delay
= 0, /* usec */
497 static __init
void da830_evm_init(void)
499 struct davinci_soc_info
*soc_info
= &davinci_soc_info
;
502 ret
= da8xx_register_edma();
504 pr_warning("da830_evm_init: edma registration failed: %d\n",
507 ret
= davinci_cfg_reg_list(da830_i2c0_pins
);
509 pr_warning("da830_evm_init: i2c0 mux setup failed: %d\n",
512 ret
= da8xx_register_i2c(0, &da830_evm_i2c_0_pdata
);
514 pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
517 da830_evm_usb_init();
519 soc_info
->emac_pdata
->phy_mask
= DA830_EVM_PHY_MASK
;
520 soc_info
->emac_pdata
->mdio_max_freq
= DA830_EVM_MDIO_FREQUENCY
;
521 soc_info
->emac_pdata
->rmii_en
= 1;
523 ret
= davinci_cfg_reg_list(da830_cpgmac_pins
);
525 pr_warning("da830_evm_init: cpgmac mux setup failed: %d\n",
528 ret
= da8xx_register_emac();
530 pr_warning("da830_evm_init: emac registration failed: %d\n",
533 ret
= da8xx_register_watchdog();
535 pr_warning("da830_evm_init: watchdog registration failed: %d\n",
538 davinci_serial_init(&da830_evm_uart_config
);
539 i2c_register_board_info(1, da830_evm_i2c_devices
,
540 ARRAY_SIZE(da830_evm_i2c_devices
));
542 ret
= davinci_cfg_reg_list(da830_evm_mcasp1_pins
);
544 pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n",
547 da8xx_register_mcasp(1, &da830_evm_snd_data
);
549 da830_evm_init_mmc();
551 ret
= da8xx_register_rtc();
553 pr_warning("da830_evm_init: rtc setup failed: %d\n", ret
);
556 #ifdef CONFIG_SERIAL_8250_CONSOLE
557 static int __init
da830_evm_console_init(void)
559 return add_preferred_console("ttyS", 2, "115200");
561 console_initcall(da830_evm_console_init
);
564 static void __init
da830_evm_map_io(void)
569 MACHINE_START(DAVINCI_DA830_EVM
, "DaVinci DA830/OMAP-L137 EVM")
571 .io_pg_offst
= (__IO_ADDRESS(IO_PHYS
) >> 18) & 0xfffc,
572 .boot_params
= (DA8XX_DDR_BASE
+ 0x100),
573 .map_io
= da830_evm_map_io
,
574 .init_irq
= cp_intc_init
,
575 .timer
= &davinci_timer
,
576 .init_machine
= da830_evm_init
,