4 * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
5 * updates in http://alberdroid.blogspot.com/
7 * Based on Atmark Techno, Inc. armadillo 500 BSP 2008
8 * Based on mx31ads.c and pcm037.c Great Work!
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
26 #include <linux/types.h>
27 #include <linux/init.h>
28 #include <linux/clk.h>
29 #include <linux/platform_device.h>
30 #include <linux/gpio.h>
31 #include <linux/smsc911x.h>
32 #include <linux/interrupt.h>
33 #include <linux/irq.h>
34 #include <linux/mtd/physmap.h>
36 #include <linux/input.h>
37 #include <linux/gpio_keys.h>
38 #include <linux/i2c.h>
39 #include <linux/usb/otg.h>
40 #include <linux/usb/ulpi.h>
41 #include <linux/delay.h>
43 #include <mach/hardware.h>
44 #include <asm/mach-types.h>
45 #include <asm/mach/arch.h>
46 #include <asm/mach/time.h>
47 #include <asm/memory.h>
48 #include <asm/mach/map.h>
50 #include <mach/common.h>
51 #include <mach/imx-uart.h>
52 #include <mach/iomux-mx3.h>
53 #include <mach/board-armadillo5x0.h>
56 #include <mach/mx3fb.h>
57 #include <mach/mxc_nand.h>
58 #include <mach/mxc_ehci.h>
59 #include <mach/ulpi.h>
64 static int armadillo5x0_pins[] = {
76 IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
78 MX31_PIN_SD1_DATA3__SD1_DATA3,
79 MX31_PIN_SD1_DATA2__SD1_DATA2,
80 MX31_PIN_SD1_DATA1__SD1_DATA1,
81 MX31_PIN_SD1_DATA0__SD1_DATA0,
82 MX31_PIN_SD1_CLK__SD1_CLK,
83 MX31_PIN_SD1_CMD__SD1_CMD,
103 MX31_PIN_VSYNC3__VSYNC3,
104 MX31_PIN_HSYNC__HSYNC,
105 MX31_PIN_FPSHIFT__FPSHIFT,
106 MX31_PIN_DRDY0__DRDY0,
107 IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
109 MX31_PIN_CSPI2_MOSI__SCL,
110 MX31_PIN_CSPI2_MISO__SDA,
112 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
113 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
114 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
115 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
116 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
117 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
118 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
119 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
120 MX31_PIN_USBOTG_CLK__USBOTG_CLK,
121 MX31_PIN_USBOTG_DIR__USBOTG_DIR,
122 MX31_PIN_USBOTG_NXT__USBOTG_NXT,
123 MX31_PIN_USBOTG_STP__USBOTG_STP,
125 IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
126 IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
127 IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
128 IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
129 IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
130 IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
131 IOMUX_MODE(MX31_PIN_STXD3, IOMUX_CONFIG_FUNC),
132 IOMUX_MODE(MX31_PIN_SRXD3, IOMUX_CONFIG_FUNC),
133 IOMUX_MODE(MX31_PIN_SCK3, IOMUX_CONFIG_FUNC),
134 IOMUX_MODE(MX31_PIN_SFS3, IOMUX_CONFIG_FUNC),
135 IOMUX_MODE(MX31_PIN_STXD6, IOMUX_CONFIG_FUNC),
136 IOMUX_MODE(MX31_PIN_SRXD6, IOMUX_CONFIG_FUNC),
140 #if defined(CONFIG_USB_ULPI)
142 #define OTG_RESET IOMUX_TO_GPIO(MX31_PIN_STXD4)
143 #define USBH2_RESET IOMUX_TO_GPIO(MX31_PIN_SCK6)
144 #define USBH2_CS IOMUX_TO_GPIO(MX31_PIN_GPIO1_3)
146 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
147 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
149 static int usbotg_init(struct platform_device *pdev)
153 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
154 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
155 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
156 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
157 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
158 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
159 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
160 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
161 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
162 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
163 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
164 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
166 /* Chip already enabled by hardware */
168 err = gpio_request(OTG_RESET, "USB-OTG-RESET");
170 pr_err("Failed to request the usb otg reset gpio\n");
174 err = gpio_direction_output(OTG_RESET, 1/*HIGH*/);
176 pr_err("Failed to reset the usb otg phy\n");
180 gpio_set_value(OTG_RESET, 0/*LOW*/);
182 gpio_set_value(OTG_RESET, 1/*HIGH*/);
187 gpio_free(OTG_RESET);
191 static int usbh2_init(struct platform_device *pdev)
195 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
196 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
197 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
198 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
199 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
200 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
201 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
202 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
203 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
204 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
205 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
206 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
208 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
211 /* Enable the chip */
212 err = gpio_request(USBH2_CS, "USB-H2-CS");
214 pr_err("Failed to request the usb host 2 CS gpio\n");
218 err = gpio_direction_output(USBH2_CS, 0/*Enabled*/);
220 pr_err("Failed to drive the usb host 2 CS gpio\n");
225 err = gpio_request(USBH2_RESET, "USB-H2-RESET");
227 pr_err("Failed to request the usb host 2 reset gpio\n");
231 err = gpio_direction_output(USBH2_RESET, 1/*HIGH*/);
233 pr_err("Failed to reset the usb host 2 phy\n");
237 gpio_set_value(USBH2_RESET, 0/*LOW*/);
239 gpio_set_value(USBH2_RESET, 1/*HIGH*/);
244 gpio_free(USBH2_RESET);
250 static struct mxc_usbh_platform_data usbotg_pdata = {
252 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
253 .flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
256 static struct mxc_usbh_platform_data usbh2_pdata = {
258 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
259 .flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
261 #endif /* CONFIG_USB_ULPI */
264 #define ARMADILLO5X0_RTC_GPIO IOMUX_TO_GPIO(MX31_PIN_SRXD4)
266 static struct i2c_board_info armadillo5x0_i2c_rtc = {
267 I2C_BOARD_INFO("s35390a", 0x30),
271 static struct gpio_keys_button armadillo5x0_buttons[] = {
273 .code = KEY_ENTER, /*28*/
274 .gpio = IOMUX_TO_GPIO(MX31_PIN_SCLK0),
279 .code = KEY_BACK, /*158*/
280 .gpio = IOMUX_TO_GPIO(MX31_PIN_SRST0),
287 static struct gpio_keys_platform_data armadillo5x0_button_data = {
288 .buttons = armadillo5x0_buttons,
289 .nbuttons = ARRAY_SIZE(armadillo5x0_buttons),
292 static struct platform_device armadillo5x0_button_device = {
297 .platform_data = &armadillo5x0_button_data,
304 static struct mxc_nand_platform_data armadillo5x0_nand_flash_pdata = {
312 static struct mtd_partition armadillo5x0_nor_flash_partitions[] = {
314 .name = "nor.bootloader",
315 .offset = 0x00000000,
318 .name = "nor.kernel",
319 .offset = MTDPART_OFS_APPEND,
322 .name = "nor.userland",
323 .offset = MTDPART_OFS_APPEND,
324 .size = 110*128*1024,
326 .name = "nor.config",
327 .offset = MTDPART_OFS_APPEND,
332 static struct physmap_flash_data armadillo5x0_nor_flash_pdata = {
334 .parts = armadillo5x0_nor_flash_partitions,
335 .nr_parts = ARRAY_SIZE(armadillo5x0_nor_flash_partitions),
338 static struct resource armadillo5x0_nor_flash_resource = {
339 .flags = IORESOURCE_MEM,
340 .start = MX31_CS0_BASE_ADDR,
341 .end = MX31_CS0_BASE_ADDR + SZ_64M - 1,
344 static struct platform_device armadillo5x0_nor_flash = {
345 .name = "physmap-flash",
348 .resource = &armadillo5x0_nor_flash_resource,
354 static const struct fb_videomode fb_modedb[] = {
355 { /* 640x480 @ 60 Hz */
367 .sync = FB_SYNC_OE_ACT_HIGH,
368 .vmode = FB_VMODE_NONINTERLACED,
370 }, {/* 800x600 @ 56 Hz */
382 .sync = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
383 FB_SYNC_VERT_HIGH_ACT,
384 .vmode = FB_VMODE_NONINTERLACED,
389 static struct ipu_platform_data mx3_ipu_data = {
390 .irq_base = MXC_IPU_IRQ_START,
393 static struct mx3fb_platform_data mx3fb_pdata = {
394 .dma_dev = &mx3_ipu.dev,
397 .num_modes = ARRAY_SIZE(fb_modedb),
404 static int armadillo5x0_sdhc1_get_ro(struct device *dev)
406 return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
409 static int armadillo5x0_sdhc1_init(struct device *dev,
410 irq_handler_t detect_irq, void *data)
413 int gpio_det, gpio_wp;
415 gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
416 gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
418 ret = gpio_request(gpio_det, "sdhc-card-detect");
422 gpio_direction_input(gpio_det);
424 ret = gpio_request(gpio_wp, "sdhc-write-protect");
428 gpio_direction_input(gpio_wp);
430 /* When supported the trigger type have to be BOTH */
431 ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), detect_irq,
432 IRQF_DISABLED | IRQF_TRIGGER_FALLING,
433 "sdhc-detect", data);
436 goto err_gpio_free_2;
450 static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
452 free_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), data);
453 gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
454 gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
457 static struct imxmmc_platform_data sdhc_pdata = {
458 .get_ro = armadillo5x0_sdhc1_get_ro,
459 .init = armadillo5x0_sdhc1_init,
460 .exit = armadillo5x0_sdhc1_exit,
467 static struct resource armadillo5x0_smc911x_resources[] = {
469 .start = MX31_CS3_BASE_ADDR,
470 .end = MX31_CS3_BASE_ADDR + SZ_32M - 1,
471 .flags = IORESOURCE_MEM,
473 .start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
474 .end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
475 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
479 static struct smsc911x_platform_config smsc911x_info = {
480 .flags = SMSC911X_USE_16BIT,
481 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
482 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
485 static struct platform_device armadillo5x0_smc911x_device = {
488 .num_resources = ARRAY_SIZE(armadillo5x0_smc911x_resources),
489 .resource = armadillo5x0_smc911x_resources,
491 .platform_data = &smsc911x_info,
495 /* UART device data */
496 static struct imxuart_platform_data uart_pdata = {
497 .flags = IMXUART_HAVE_RTSCTS,
500 static struct platform_device *devices[] __initdata = {
501 &armadillo5x0_smc911x_device,
503 &armadillo5x0_button_device,
507 * Perform board specific initializations
509 static void __init armadillo5x0_init(void)
511 mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
512 ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
514 platform_add_devices(devices, ARRAY_SIZE(devices));
517 mxc_register_device(&mxc_uart_device0, &uart_pdata);
518 mxc_register_device(&mxc_uart_device1, &uart_pdata);
520 /* SMSC9118 IRQ pin */
521 gpio_direction_input(MX31_PIN_GPIO1_0);
524 mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
527 mxc_register_device(&mx3_ipu, &mx3_ipu_data);
528 mxc_register_device(&mx3_fb, &mx3fb_pdata);
530 /* Register NOR Flash */
531 mxc_register_device(&armadillo5x0_nor_flash,
532 &armadillo5x0_nor_flash_pdata);
534 /* Register NAND Flash */
535 mxc_register_device(&mxc_nand_device, &armadillo5x0_nand_flash_pdata);
537 /* set NAND page size to 2k if not configured via boot mode pins */
538 __raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR);
541 /* Get RTC IRQ and register the chip */
542 if (gpio_request(ARMADILLO5X0_RTC_GPIO, "rtc") == 0) {
543 if (gpio_direction_input(ARMADILLO5X0_RTC_GPIO) == 0)
544 armadillo5x0_i2c_rtc.irq = gpio_to_irq(ARMADILLO5X0_RTC_GPIO);
546 gpio_free(ARMADILLO5X0_RTC_GPIO);
548 if (armadillo5x0_i2c_rtc.irq == 0)
549 pr_warning("armadillo5x0_init: failed to get RTC IRQ\n");
550 i2c_register_board_info(1, &armadillo5x0_i2c_rtc, 1);
553 #if defined(CONFIG_USB_ULPI)
554 usbotg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
555 USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
556 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
557 USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
559 mxc_register_device(&mxc_otg_host, &usbotg_pdata);
560 mxc_register_device(&mxc_usbh2, &usbh2_pdata);
564 static void __init armadillo5x0_timer_init(void)
566 mx31_clocks_init(26000000);
569 static struct sys_timer armadillo5x0_timer = {
570 .init = armadillo5x0_timer_init,
573 MACHINE_START(ARMADILLO5X0, "Armadillo-500")
574 /* Maintainer: Alberto Panizzo */
575 .phys_io = MX31_AIPS1_BASE_ADDR,
576 .io_pg_offst = (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc,
577 .boot_params = MX3x_PHYS_OFFSET + 0x100,
578 .map_io = mx31_map_io,
579 .init_irq = mx31_init_irq,
580 .timer = &armadillo5x0_timer,
581 .init_machine = armadillo5x0_init,