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,