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 */
36 #define DA830_EMIF25_ASYNC_DATA_CE3_BASE 0x62000000
37 #define DA830_EMIF25_CONTROL_BASE 0x68000000
40 * USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4].
42 #define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
43 #define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)
45 static const short da830_evm_usb11_pins[] = {
46 DA830_GPIO1_15, DA830_GPIO2_4,
50 static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;
52 static int da830_evm_usb_set_power(unsigned port, int on)
54 gpio_set_value(ON_BD_USB_DRV, on);
58 static int da830_evm_usb_get_power(unsigned port)
60 return gpio_get_value(ON_BD_USB_DRV);
63 static int da830_evm_usb_get_oci(unsigned port)
65 return !gpio_get_value(ON_BD_USB_OVC);
68 static irqreturn_t da830_evm_usb_ocic_irq(int, void *);
70 static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
72 int irq = gpio_to_irq(ON_BD_USB_OVC);
75 if (handler != NULL) {
76 da830_evm_usb_ocic_handler = handler;
78 error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED |
79 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
80 "OHCI over-current indicator", NULL);
82 printk(KERN_ERR "%s: could not request IRQ to watch "
83 "over-current indicator changes\n", __func__);
90 static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
91 .set_power = da830_evm_usb_set_power,
92 .get_power = da830_evm_usb_get_power,
93 .get_oci = da830_evm_usb_get_oci,
94 .ocic_notify = da830_evm_usb_ocic_notify,
96 /* TPS2065 switch @ 5V */
97 .potpgt = (3 + 1) / 2, /* 3 ms max */
100 static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
102 da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
106 static __init void da830_evm_usb_init(void)
112 * Set up USB clock/mode in the CFGCHIP2 register.
113 * FYI: CFGCHIP2 is 0x0000ef00 initially.
115 cfgchip2 = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));
117 /* USB2.0 PHY reference clock is 24 MHz */
118 cfgchip2 &= ~CFGCHIP2_REFFREQ;
119 cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
122 * Select internal reference clock for USB 2.0 PHY
123 * and use it as a clock source for USB 1.1 PHY
124 * (this is the default setting anyway).
126 cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
127 cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX;
130 * We have to override VBUS/ID signals when MUSB is configured into the
131 * host-only mode -- ID pin will float if no cable is connected, so the
132 * controller won't be able to drive VBUS thinking that it's a B-device.
133 * Otherwise, we want to use the OTG mode and enable VBUS comparators.
135 cfgchip2 &= ~CFGCHIP2_OTGMODE;
136 #ifdef CONFIG_USB_MUSB_HOST
137 cfgchip2 |= CFGCHIP2_FORCE_HOST;
139 cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN;
142 __raw_writel(cfgchip2, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));
144 /* USB_REFCLKIN is not used. */
145 ret = davinci_cfg_reg(DA830_USB0_DRVVBUS);
147 pr_warning("%s: USB 2.0 PinMux setup failed: %d\n",
151 * TPS2065 switch @ 5V supplies 1 A (sustains 1.5 A),
152 * with the power on to power good time of 3 ms.
154 ret = da8xx_register_usb20(1000, 3);
156 pr_warning("%s: USB 2.0 registration failed: %d\n",
160 ret = da8xx_pinmux_setup(da830_evm_usb11_pins);
162 pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
167 ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
169 printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
170 "power control: %d\n", __func__, ret);
173 gpio_direction_output(ON_BD_USB_DRV, 0);
175 ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
177 printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
178 "over-current indicator: %d\n", __func__, ret);
181 gpio_direction_input(ON_BD_USB_OVC);
183 ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
185 pr_warning("%s: USB 1.1 registration failed: %d\n",
189 static struct davinci_uart_config da830_evm_uart_config __initdata = {
190 .enabled_uarts = 0x7,
193 static const short da830_evm_mcasp1_pins[] = {
194 DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
195 DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
196 DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
201 static u8 da830_iis_serializer_direction[] = {
202 RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
203 INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE,
204 INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
207 static struct snd_platform_data da830_evm_snd_data = {
208 .tx_dma_offset = 0x2000,
209 .rx_dma_offset = 0x2000,
210 .op_mode = DAVINCI_MCASP_IIS_MODE,
211 .num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
213 .serial_dir = da830_iis_serializer_direction,
214 .eventq_no = EVENTQ_0,
215 .version = MCASP_VERSION_2,
221 * GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.
223 static const short da830_evm_mmc_sd_pins[] = {
224 DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
225 DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
226 DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
227 DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2,
231 #define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)
233 static int da830_evm_mmc_get_ro(int index)
235 return gpio_get_value(DA830_MMCSD_WP_PIN);
238 static struct davinci_mmc_config da830_evm_mmc_config = {
239 .get_ro = da830_evm_mmc_get_ro,
241 .version = MMC_CTLR_VERSION_2,
244 static inline void da830_evm_init_mmc(void)
248 ret = da8xx_pinmux_setup(da830_evm_mmc_sd_pins);
250 pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",
255 ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");
257 pr_warning("da830_evm_init: can not open GPIO %d\n",
261 gpio_direction_input(DA830_MMCSD_WP_PIN);
263 ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
265 pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",
267 gpio_free(DA830_MMCSD_WP_PIN);
272 * UI board NAND/NOR flashes only use 8-bit data bus.
274 static const short da830_evm_emif25_pins[] = {
275 DA830_EMA_D_0, DA830_EMA_D_1, DA830_EMA_D_2, DA830_EMA_D_3,
276 DA830_EMA_D_4, DA830_EMA_D_5, DA830_EMA_D_6, DA830_EMA_D_7,
277 DA830_EMA_A_0, DA830_EMA_A_1, DA830_EMA_A_2, DA830_EMA_A_3,
278 DA830_EMA_A_4, DA830_EMA_A_5, DA830_EMA_A_6, DA830_EMA_A_7,
279 DA830_EMA_A_8, DA830_EMA_A_9, DA830_EMA_A_10, DA830_EMA_A_11,
280 DA830_EMA_A_12, DA830_EMA_BA_0, DA830_EMA_BA_1, DA830_NEMA_WE,
281 DA830_NEMA_CS_2, DA830_NEMA_CS_3, DA830_NEMA_OE, DA830_EMA_WAIT_0,
285 #if defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE)
291 #ifdef CONFIG_DA830_UI_NAND
292 static struct mtd_partition da830_evm_nand_partitions[] = {
293 /* bootloader (U-Boot, etc) in first sector */
295 .name = "bootloader",
298 .mask_flags = MTD_WRITEABLE, /* force read-only */
300 /* bootloader params in the next sector */
303 .offset = MTDPART_OFS_APPEND,
305 .mask_flags = MTD_WRITEABLE, /* force read-only */
310 .offset = MTDPART_OFS_APPEND,
316 .name = "filesystem",
317 .offset = MTDPART_OFS_APPEND,
318 .size = MTDPART_SIZ_FULL,
323 /* flash bbt decriptors */
324 static uint8_t da830_evm_nand_bbt_pattern[] = { 'B', 'b', 't', '0' };
325 static uint8_t da830_evm_nand_mirror_pattern[] = { '1', 't', 'b', 'B' };
327 static struct nand_bbt_descr da830_evm_nand_bbt_main_descr = {
328 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
329 NAND_BBT_WRITE | NAND_BBT_2BIT |
330 NAND_BBT_VERSION | NAND_BBT_PERCHIP,
335 .pattern = da830_evm_nand_bbt_pattern
338 static struct nand_bbt_descr da830_evm_nand_bbt_mirror_descr = {
339 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
340 NAND_BBT_WRITE | NAND_BBT_2BIT |
341 NAND_BBT_VERSION | NAND_BBT_PERCHIP,
346 .pattern = da830_evm_nand_mirror_pattern
349 static struct davinci_nand_pdata da830_evm_nand_pdata = {
350 .parts = da830_evm_nand_partitions,
351 .nr_parts = ARRAY_SIZE(da830_evm_nand_partitions),
352 .ecc_mode = NAND_ECC_HW,
354 .options = NAND_USE_FLASH_BBT,
355 .bbt_td = &da830_evm_nand_bbt_main_descr,
356 .bbt_md = &da830_evm_nand_bbt_mirror_descr,
359 static struct resource da830_evm_nand_resources[] = {
360 [0] = { /* First memory resource is NAND I/O window */
361 .start = DA830_EMIF25_ASYNC_DATA_CE3_BASE,
362 .end = DA830_EMIF25_ASYNC_DATA_CE3_BASE + PAGE_SIZE - 1,
363 .flags = IORESOURCE_MEM,
365 [1] = { /* Second memory resource is AEMIF control registers */
366 .start = DA830_EMIF25_CONTROL_BASE,
367 .end = DA830_EMIF25_CONTROL_BASE + SZ_32K - 1,
368 .flags = IORESOURCE_MEM,
372 static struct platform_device da830_evm_nand_device = {
373 .name = "davinci_nand",
376 .platform_data = &da830_evm_nand_pdata,
378 .num_resources = ARRAY_SIZE(da830_evm_nand_resources),
379 .resource = da830_evm_nand_resources,
382 static inline void da830_evm_init_nand(int mux_mode)
387 pr_warning("WARNING: both MMC/SD and NAND are "
388 "enabled, but they share AEMIF pins.\n"
389 "\tDisable MMC/SD for NAND support.\n");
393 ret = da8xx_pinmux_setup(da830_evm_emif25_pins);
395 pr_warning("da830_evm_init: emif25 mux setup failed: %d\n",
398 ret = platform_device_register(&da830_evm_nand_device);
400 pr_warning("da830_evm_init: NAND device not registered.\n");
402 gpio_direction_output(mux_mode, 1);
405 static inline void da830_evm_init_nand(int mux_mode) { }
408 #ifdef CONFIG_DA830_UI_LCD
409 static inline void da830_evm_init_lcdc(int mux_mode)
413 ret = da8xx_pinmux_setup(da830_lcdcntl_pins);
415 pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n",
418 ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
420 pr_warning("da830_evm_init: lcd setup failed: %d\n", ret);
422 gpio_direction_output(mux_mode, 0);
425 static inline void da830_evm_init_lcdc(int mux_mode) { }
428 static struct at24_platform_data da830_evm_i2c_eeprom_info = {
429 .byte_len = SZ_256K / 8,
431 .flags = AT24_FLAG_ADDR16,
432 .setup = davinci_get_mac_addr,
433 .context = (void *)0x7f00,
436 static int da830_evm_ui_expander_setup(struct i2c_client *client, int gpio,
437 unsigned ngpio, void *context)
439 gpio_request(gpio + 6, "UI MUX_MODE");
441 /* Drive mux mode low to match the default without UI card */
442 gpio_direction_output(gpio + 6, 0);
444 da830_evm_init_lcdc(gpio + 6);
446 da830_evm_init_nand(gpio + 6);
451 static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
452 unsigned ngpio, void *context)
458 static struct pcf857x_platform_data da830_evm_ui_expander_info = {
459 .gpio_base = DAVINCI_N_GPIO,
460 .setup = da830_evm_ui_expander_setup,
461 .teardown = da830_evm_ui_expander_teardown,
464 static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
466 I2C_BOARD_INFO("24c256", 0x50),
467 .platform_data = &da830_evm_i2c_eeprom_info,
470 I2C_BOARD_INFO("tlv320aic3x", 0x18),
473 I2C_BOARD_INFO("pcf8574", 0x3f),
474 .platform_data = &da830_evm_ui_expander_info,
478 static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
479 .bus_freq = 100, /* kHz */
480 .bus_delay = 0, /* usec */
483 static __init void da830_evm_init(void)
485 struct davinci_soc_info *soc_info = &davinci_soc_info;
488 ret = da8xx_register_edma();
490 pr_warning("da830_evm_init: edma registration failed: %d\n",
493 ret = da8xx_pinmux_setup(da830_i2c0_pins);
495 pr_warning("da830_evm_init: i2c0 mux setup failed: %d\n",
498 ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
500 pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
503 da830_evm_usb_init();
505 soc_info->emac_pdata->phy_mask = DA830_EVM_PHY_MASK;
506 soc_info->emac_pdata->mdio_max_freq = DA830_EVM_MDIO_FREQUENCY;
507 soc_info->emac_pdata->rmii_en = 1;
509 ret = da8xx_pinmux_setup(da830_cpgmac_pins);
511 pr_warning("da830_evm_init: cpgmac mux setup failed: %d\n",
514 ret = da8xx_register_emac();
516 pr_warning("da830_evm_init: emac registration failed: %d\n",
519 ret = da8xx_register_watchdog();
521 pr_warning("da830_evm_init: watchdog registration failed: %d\n",
524 davinci_serial_init(&da830_evm_uart_config);
525 i2c_register_board_info(1, da830_evm_i2c_devices,
526 ARRAY_SIZE(da830_evm_i2c_devices));
528 ret = da8xx_pinmux_setup(da830_evm_mcasp1_pins);
530 pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n",
533 da8xx_register_mcasp(1, &da830_evm_snd_data);
535 da830_evm_init_mmc();
537 ret = da8xx_register_rtc();
539 pr_warning("da830_evm_init: rtc setup failed: %d\n", ret);
542 #ifdef CONFIG_SERIAL_8250_CONSOLE
543 static int __init da830_evm_console_init(void)
545 return add_preferred_console("ttyS", 2, "115200");
547 console_initcall(da830_evm_console_init);
550 static __init void da830_evm_irq_init(void)
552 struct davinci_soc_info *soc_info = &davinci_soc_info;
554 cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA830_N_CP_INTC_IRQ,
555 soc_info->intc_irq_prios);
558 static void __init da830_evm_map_io(void)
563 MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137 EVM")
565 .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
566 .boot_params = (DA8XX_DDR_BASE + 0x100),
567 .map_io = da830_evm_map_io,
568 .init_irq = da830_evm_irq_init,
569 .timer = &davinci_timer,
570 .init_machine = da830_evm_init,