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/i2c.h>
38 #include <linux/usb/otg.h>
39 #include <linux/usb/ulpi.h>
40 #include <linux/delay.h>
41 #include <linux/regulator/machine.h>
42 #include <linux/regulator/fixed.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>
51 #include "devices-imx31.h"
52 #include "crmregs-imx3.h"
55 #include "iomux-mx3.h"
58 static int armadillo5x0_pins[] = {
70 IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
72 MX31_PIN_SD1_DATA3__SD1_DATA3,
73 MX31_PIN_SD1_DATA2__SD1_DATA2,
74 MX31_PIN_SD1_DATA1__SD1_DATA1,
75 MX31_PIN_SD1_DATA0__SD1_DATA0,
76 MX31_PIN_SD1_CLK__SD1_CLK,
77 MX31_PIN_SD1_CMD__SD1_CMD,
97 MX31_PIN_VSYNC3__VSYNC3,
98 MX31_PIN_HSYNC__HSYNC,
99 MX31_PIN_FPSHIFT__FPSHIFT,
100 MX31_PIN_DRDY0__DRDY0,
101 IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
103 MX31_PIN_CSPI2_MOSI__SCL,
104 MX31_PIN_CSPI2_MISO__SDA,
106 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
107 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
108 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
109 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
110 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
111 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
112 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
113 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
114 MX31_PIN_USBOTG_CLK__USBOTG_CLK,
115 MX31_PIN_USBOTG_DIR__USBOTG_DIR,
116 MX31_PIN_USBOTG_NXT__USBOTG_NXT,
117 MX31_PIN_USBOTG_STP__USBOTG_STP,
119 IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
120 IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
121 IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
122 IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
123 IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
124 IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
125 IOMUX_MODE(MX31_PIN_STXD3, IOMUX_CONFIG_FUNC),
126 IOMUX_MODE(MX31_PIN_SRXD3, IOMUX_CONFIG_FUNC),
127 IOMUX_MODE(MX31_PIN_SCK3, IOMUX_CONFIG_FUNC),
128 IOMUX_MODE(MX31_PIN_SFS3, IOMUX_CONFIG_FUNC),
129 IOMUX_MODE(MX31_PIN_STXD6, IOMUX_CONFIG_FUNC),
130 IOMUX_MODE(MX31_PIN_SRXD6, IOMUX_CONFIG_FUNC),
135 #define OTG_RESET IOMUX_TO_GPIO(MX31_PIN_STXD4)
136 #define USBH2_RESET IOMUX_TO_GPIO(MX31_PIN_SCK6)
137 #define USBH2_CS IOMUX_TO_GPIO(MX31_PIN_GPIO1_3)
139 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
140 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
142 static int usbotg_init(struct platform_device *pdev)
146 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
147 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
148 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
149 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
150 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
151 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
152 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
153 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
154 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
155 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
156 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
157 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
159 /* Chip already enabled by hardware */
161 err = gpio_request(OTG_RESET, "USB-OTG-RESET");
163 pr_err("Failed to request the usb otg reset gpio\n");
167 err = gpio_direction_output(OTG_RESET, 1/*HIGH*/);
169 pr_err("Failed to reset the usb otg phy\n");
173 gpio_set_value(OTG_RESET, 0/*LOW*/);
175 gpio_set_value(OTG_RESET, 1/*HIGH*/);
178 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
179 MXC_EHCI_INTERFACE_DIFF_UNI);
182 gpio_free(OTG_RESET);
186 static int usbh2_init(struct platform_device *pdev)
190 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
191 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
192 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
193 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
194 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
195 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
196 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
197 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
198 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
199 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
200 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
201 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
203 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
206 /* Enable the chip */
207 err = gpio_request(USBH2_CS, "USB-H2-CS");
209 pr_err("Failed to request the usb host 2 CS gpio\n");
213 err = gpio_direction_output(USBH2_CS, 0/*Enabled*/);
215 pr_err("Failed to drive the usb host 2 CS gpio\n");
220 err = gpio_request(USBH2_RESET, "USB-H2-RESET");
222 pr_err("Failed to request the usb host 2 reset gpio\n");
226 err = gpio_direction_output(USBH2_RESET, 1/*HIGH*/);
228 pr_err("Failed to reset the usb host 2 phy\n");
232 gpio_set_value(USBH2_RESET, 0/*LOW*/);
234 gpio_set_value(USBH2_RESET, 1/*HIGH*/);
237 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
238 MXC_EHCI_INTERFACE_DIFF_UNI);
241 gpio_free(USBH2_RESET);
247 static struct mxc_usbh_platform_data usbotg_pdata __initdata = {
249 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
252 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
254 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
258 #define ARMADILLO5X0_RTC_GPIO IOMUX_TO_GPIO(MX31_PIN_SRXD4)
260 static struct i2c_board_info armadillo5x0_i2c_rtc = {
261 I2C_BOARD_INFO("s35390a", 0x30),
265 static struct gpio_keys_button armadillo5x0_buttons[] = {
267 .code = KEY_ENTER, /*28*/
268 .gpio = IOMUX_TO_GPIO(MX31_PIN_SCLK0),
273 .code = KEY_BACK, /*158*/
274 .gpio = IOMUX_TO_GPIO(MX31_PIN_SRST0),
281 static const struct gpio_keys_platform_data
282 armadillo5x0_button_data __initconst = {
283 .buttons = armadillo5x0_buttons,
284 .nbuttons = ARRAY_SIZE(armadillo5x0_buttons),
290 static const struct mxc_nand_platform_data
291 armadillo5x0_nand_board_info __initconst = {
299 static struct mtd_partition armadillo5x0_nor_flash_partitions[] = {
301 .name = "nor.bootloader",
302 .offset = 0x00000000,
305 .name = "nor.kernel",
306 .offset = MTDPART_OFS_APPEND,
309 .name = "nor.userland",
310 .offset = MTDPART_OFS_APPEND,
311 .size = 110*128*1024,
313 .name = "nor.config",
314 .offset = MTDPART_OFS_APPEND,
319 static const struct physmap_flash_data
320 armadillo5x0_nor_flash_pdata __initconst = {
322 .parts = armadillo5x0_nor_flash_partitions,
323 .nr_parts = ARRAY_SIZE(armadillo5x0_nor_flash_partitions),
326 static const struct resource armadillo5x0_nor_flash_resource __initconst = {
327 .flags = IORESOURCE_MEM,
328 .start = MX31_CS0_BASE_ADDR,
329 .end = MX31_CS0_BASE_ADDR + SZ_64M - 1,
335 static const struct fb_videomode fb_modedb[] = {
336 { /* 640x480 @ 60 Hz */
348 .sync = FB_SYNC_OE_ACT_HIGH,
349 .vmode = FB_VMODE_NONINTERLACED,
351 }, {/* 800x600 @ 56 Hz */
363 .sync = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
364 FB_SYNC_VERT_HIGH_ACT,
365 .vmode = FB_VMODE_NONINTERLACED,
370 static struct mx3fb_platform_data mx3fb_pdata __initdata = {
373 .num_modes = ARRAY_SIZE(fb_modedb),
380 static int armadillo5x0_sdhc1_get_ro(struct device *dev)
382 return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
385 static int armadillo5x0_sdhc1_init(struct device *dev,
386 irq_handler_t detect_irq, void *data)
389 int gpio_det, gpio_wp;
391 gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
392 gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
394 ret = gpio_request(gpio_det, "sdhc-card-detect");
398 gpio_direction_input(gpio_det);
400 ret = gpio_request(gpio_wp, "sdhc-write-protect");
404 gpio_direction_input(gpio_wp);
406 /* When supported the trigger type have to be BOTH */
407 ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK)),
408 detect_irq, IRQF_TRIGGER_FALLING,
409 "sdhc-detect", data);
412 goto err_gpio_free_2;
426 static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
428 free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK)), data);
429 gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
430 gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
433 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
434 .get_ro = armadillo5x0_sdhc1_get_ro,
435 .init = armadillo5x0_sdhc1_init,
436 .exit = armadillo5x0_sdhc1_exit,
443 static struct resource armadillo5x0_smc911x_resources[] = {
445 .start = MX31_CS3_BASE_ADDR,
446 .end = MX31_CS3_BASE_ADDR + SZ_32M - 1,
447 .flags = IORESOURCE_MEM,
449 /* irq number is run-time assigned */
450 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
454 static struct smsc911x_platform_config smsc911x_info = {
455 .flags = SMSC911X_USE_16BIT,
456 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
457 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
460 static struct platform_device armadillo5x0_smc911x_device = {
463 .num_resources = ARRAY_SIZE(armadillo5x0_smc911x_resources),
464 .resource = armadillo5x0_smc911x_resources,
466 .platform_data = &smsc911x_info,
470 /* UART device data */
471 static const struct imxuart_platform_data uart_pdata __initconst = {
472 .flags = IMXUART_HAVE_RTSCTS,
475 static struct platform_device *devices[] __initdata = {
476 &armadillo5x0_smc911x_device,
479 static struct regulator_consumer_supply dummy_supplies[] = {
480 REGULATOR_SUPPLY("vdd33a", "smsc911x"),
481 REGULATOR_SUPPLY("vddvario", "smsc911x"),
485 * Perform board specific initializations
487 static void __init armadillo5x0_init(void)
491 mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
492 ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
494 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
496 imx31_add_imx_i2c1(NULL);
499 imx31_add_imx_uart0(&uart_pdata);
500 imx31_add_imx_uart1(&uart_pdata);
503 imx31_add_ipu_core();
504 imx31_add_mx3_sdc_fb(&mx3fb_pdata);
506 /* Register NOR Flash */
507 platform_device_register_resndata(NULL, "physmap-flash", -1,
508 &armadillo5x0_nor_flash_resource, 1,
509 &armadillo5x0_nor_flash_pdata,
510 sizeof(armadillo5x0_nor_flash_pdata));
512 /* Register NAND Flash */
513 imx31_add_mxc_nand(&armadillo5x0_nand_board_info);
515 /* set NAND page size to 2k if not configured via boot mode pins */
516 imx_writel(imx_readl(mx3_ccm_base + MXC_CCM_RCSR) | (1 << 30),
517 mx3_ccm_base + MXC_CCM_RCSR);
520 static void __init armadillo5x0_late(void)
522 armadillo5x0_smc911x_resources[1].start =
523 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
524 armadillo5x0_smc911x_resources[1].end =
525 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
526 platform_add_devices(devices, ARRAY_SIZE(devices));
528 imx_add_gpio_keys(&armadillo5x0_button_data);
530 /* SMSC9118 IRQ pin */
531 gpio_direction_input(MX31_PIN_GPIO1_0);
534 imx31_add_mxc_mmc(0, &sdhc_pdata);
537 /* Get RTC IRQ and register the chip */
538 if (!gpio_request(ARMADILLO5X0_RTC_GPIO, "rtc")) {
539 if (!gpio_direction_input(ARMADILLO5X0_RTC_GPIO))
540 armadillo5x0_i2c_rtc.irq =
541 gpio_to_irq(ARMADILLO5X0_RTC_GPIO);
543 gpio_free(ARMADILLO5X0_RTC_GPIO);
546 if (armadillo5x0_i2c_rtc.irq == 0)
547 pr_warn("armadillo5x0_init: failed to get RTC IRQ\n");
548 i2c_register_board_info(1, &armadillo5x0_i2c_rtc, 1);
551 usbotg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
552 ULPI_OTG_DRVVBUS_EXT);
553 if (usbotg_pdata.otg)
554 imx31_add_mxc_ehci_otg(&usbotg_pdata);
555 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
556 ULPI_OTG_DRVVBUS_EXT);
558 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
561 static void __init armadillo5x0_timer_init(void)
563 mx31_clocks_init(26000000);
566 MACHINE_START(ARMADILLO5X0, "Armadillo-500")
567 /* Maintainer: Alberto Panizzo */
568 .atag_offset = 0x100,
569 .map_io = mx31_map_io,
570 .init_early = imx31_init_early,
571 .init_irq = mx31_init_irq,
572 .init_time = armadillo5x0_timer_init,
573 .init_machine = armadillo5x0_init,
574 .init_late = armadillo5x0_late,
575 .restart = mxc_restart,