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/iomux-mx3.h>
53 #include <mach/mx3fb.h>
54 #include <mach/ulpi.h>
56 #include "devices-imx31.h"
60 static int armadillo5x0_pins[] = {
72 IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
74 MX31_PIN_SD1_DATA3__SD1_DATA3,
75 MX31_PIN_SD1_DATA2__SD1_DATA2,
76 MX31_PIN_SD1_DATA1__SD1_DATA1,
77 MX31_PIN_SD1_DATA0__SD1_DATA0,
78 MX31_PIN_SD1_CLK__SD1_CLK,
79 MX31_PIN_SD1_CMD__SD1_CMD,
99 MX31_PIN_VSYNC3__VSYNC3,
100 MX31_PIN_HSYNC__HSYNC,
101 MX31_PIN_FPSHIFT__FPSHIFT,
102 MX31_PIN_DRDY0__DRDY0,
103 IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
105 MX31_PIN_CSPI2_MOSI__SCL,
106 MX31_PIN_CSPI2_MISO__SDA,
108 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
109 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
110 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
111 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
112 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
113 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
114 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
115 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
116 MX31_PIN_USBOTG_CLK__USBOTG_CLK,
117 MX31_PIN_USBOTG_DIR__USBOTG_DIR,
118 MX31_PIN_USBOTG_NXT__USBOTG_NXT,
119 MX31_PIN_USBOTG_STP__USBOTG_STP,
121 IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
122 IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
123 IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
124 IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
125 IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
126 IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
127 IOMUX_MODE(MX31_PIN_STXD3, IOMUX_CONFIG_FUNC),
128 IOMUX_MODE(MX31_PIN_SRXD3, IOMUX_CONFIG_FUNC),
129 IOMUX_MODE(MX31_PIN_SCK3, IOMUX_CONFIG_FUNC),
130 IOMUX_MODE(MX31_PIN_SFS3, IOMUX_CONFIG_FUNC),
131 IOMUX_MODE(MX31_PIN_STXD6, IOMUX_CONFIG_FUNC),
132 IOMUX_MODE(MX31_PIN_SRXD6, IOMUX_CONFIG_FUNC),
136 #if defined(CONFIG_USB_ULPI)
138 #define OTG_RESET IOMUX_TO_GPIO(MX31_PIN_STXD4)
139 #define USBH2_RESET IOMUX_TO_GPIO(MX31_PIN_SCK6)
140 #define USBH2_CS IOMUX_TO_GPIO(MX31_PIN_GPIO1_3)
142 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
143 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
145 static int usbotg_init(struct platform_device *pdev)
149 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
150 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
151 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
152 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
153 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
154 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
155 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
156 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
157 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
158 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
159 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
160 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
162 /* Chip already enabled by hardware */
164 err = gpio_request(OTG_RESET, "USB-OTG-RESET");
166 pr_err("Failed to request the usb otg reset gpio\n");
170 err = gpio_direction_output(OTG_RESET, 1/*HIGH*/);
172 pr_err("Failed to reset the usb otg phy\n");
176 gpio_set_value(OTG_RESET, 0/*LOW*/);
178 gpio_set_value(OTG_RESET, 1/*HIGH*/);
183 gpio_free(OTG_RESET);
187 static int usbh2_init(struct platform_device *pdev)
191 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
192 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
193 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
194 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
195 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
196 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
197 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
198 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
199 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
200 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
201 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
202 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
204 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
207 /* Enable the chip */
208 err = gpio_request(USBH2_CS, "USB-H2-CS");
210 pr_err("Failed to request the usb host 2 CS gpio\n");
214 err = gpio_direction_output(USBH2_CS, 0/*Enabled*/);
216 pr_err("Failed to drive the usb host 2 CS gpio\n");
221 err = gpio_request(USBH2_RESET, "USB-H2-RESET");
223 pr_err("Failed to request the usb host 2 reset gpio\n");
227 err = gpio_direction_output(USBH2_RESET, 1/*HIGH*/);
229 pr_err("Failed to reset the usb host 2 phy\n");
233 gpio_set_value(USBH2_RESET, 0/*LOW*/);
235 gpio_set_value(USBH2_RESET, 1/*HIGH*/);
240 gpio_free(USBH2_RESET);
246 static struct mxc_usbh_platform_data usbotg_pdata __initdata = {
248 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
249 .flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
252 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
254 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
255 .flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
257 #endif /* CONFIG_USB_ULPI */
260 #define ARMADILLO5X0_RTC_GPIO IOMUX_TO_GPIO(MX31_PIN_SRXD4)
262 static struct i2c_board_info armadillo5x0_i2c_rtc = {
263 I2C_BOARD_INFO("s35390a", 0x30),
267 static struct gpio_keys_button armadillo5x0_buttons[] = {
269 .code = KEY_ENTER, /*28*/
270 .gpio = IOMUX_TO_GPIO(MX31_PIN_SCLK0),
275 .code = KEY_BACK, /*158*/
276 .gpio = IOMUX_TO_GPIO(MX31_PIN_SRST0),
283 static struct gpio_keys_platform_data armadillo5x0_button_data = {
284 .buttons = armadillo5x0_buttons,
285 .nbuttons = ARRAY_SIZE(armadillo5x0_buttons),
288 static struct platform_device armadillo5x0_button_device = {
293 .platform_data = &armadillo5x0_button_data,
300 static const struct mxc_nand_platform_data
301 armadillo5x0_nand_board_info __initconst = {
309 static struct mtd_partition armadillo5x0_nor_flash_partitions[] = {
311 .name = "nor.bootloader",
312 .offset = 0x00000000,
315 .name = "nor.kernel",
316 .offset = MTDPART_OFS_APPEND,
319 .name = "nor.userland",
320 .offset = MTDPART_OFS_APPEND,
321 .size = 110*128*1024,
323 .name = "nor.config",
324 .offset = MTDPART_OFS_APPEND,
329 static struct physmap_flash_data armadillo5x0_nor_flash_pdata = {
331 .parts = armadillo5x0_nor_flash_partitions,
332 .nr_parts = ARRAY_SIZE(armadillo5x0_nor_flash_partitions),
335 static struct resource armadillo5x0_nor_flash_resource = {
336 .flags = IORESOURCE_MEM,
337 .start = MX31_CS0_BASE_ADDR,
338 .end = MX31_CS0_BASE_ADDR + SZ_64M - 1,
341 static struct platform_device armadillo5x0_nor_flash = {
342 .name = "physmap-flash",
345 .resource = &armadillo5x0_nor_flash_resource,
351 static const struct fb_videomode fb_modedb[] = {
352 { /* 640x480 @ 60 Hz */
364 .sync = FB_SYNC_OE_ACT_HIGH,
365 .vmode = FB_VMODE_NONINTERLACED,
367 }, {/* 800x600 @ 56 Hz */
379 .sync = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
380 FB_SYNC_VERT_HIGH_ACT,
381 .vmode = FB_VMODE_NONINTERLACED,
386 static struct ipu_platform_data mx3_ipu_data = {
387 .irq_base = MXC_IPU_IRQ_START,
390 static struct mx3fb_platform_data mx3fb_pdata = {
391 .dma_dev = &mx3_ipu.dev,
394 .num_modes = ARRAY_SIZE(fb_modedb),
401 static int armadillo5x0_sdhc1_get_ro(struct device *dev)
403 return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
406 static int armadillo5x0_sdhc1_init(struct device *dev,
407 irq_handler_t detect_irq, void *data)
410 int gpio_det, gpio_wp;
412 gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
413 gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
415 ret = gpio_request(gpio_det, "sdhc-card-detect");
419 gpio_direction_input(gpio_det);
421 ret = gpio_request(gpio_wp, "sdhc-write-protect");
425 gpio_direction_input(gpio_wp);
427 /* When supported the trigger type have to be BOTH */
428 ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), detect_irq,
429 IRQF_DISABLED | IRQF_TRIGGER_FALLING,
430 "sdhc-detect", data);
433 goto err_gpio_free_2;
447 static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
449 free_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), data);
450 gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
451 gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
454 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
455 .get_ro = armadillo5x0_sdhc1_get_ro,
456 .init = armadillo5x0_sdhc1_init,
457 .exit = armadillo5x0_sdhc1_exit,
464 static struct resource armadillo5x0_smc911x_resources[] = {
466 .start = MX31_CS3_BASE_ADDR,
467 .end = MX31_CS3_BASE_ADDR + SZ_32M - 1,
468 .flags = IORESOURCE_MEM,
470 .start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
471 .end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
472 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
476 static struct smsc911x_platform_config smsc911x_info = {
477 .flags = SMSC911X_USE_16BIT,
478 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
479 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
482 static struct platform_device armadillo5x0_smc911x_device = {
485 .num_resources = ARRAY_SIZE(armadillo5x0_smc911x_resources),
486 .resource = armadillo5x0_smc911x_resources,
488 .platform_data = &smsc911x_info,
492 /* UART device data */
493 static const struct imxuart_platform_data uart_pdata __initconst = {
494 .flags = IMXUART_HAVE_RTSCTS,
497 static struct platform_device *devices[] __initdata = {
498 &armadillo5x0_smc911x_device,
499 &armadillo5x0_button_device,
503 * Perform board specific initializations
505 static void __init armadillo5x0_init(void)
507 mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
508 ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
510 platform_add_devices(devices, ARRAY_SIZE(devices));
511 imx31_add_imx_i2c1(NULL);
514 imx31_add_imx_uart0(&uart_pdata);
515 imx31_add_imx_uart1(&uart_pdata);
517 /* SMSC9118 IRQ pin */
518 gpio_direction_input(MX31_PIN_GPIO1_0);
521 imx31_add_mxc_mmc(0, &sdhc_pdata);
524 mxc_register_device(&mx3_ipu, &mx3_ipu_data);
525 mxc_register_device(&mx3_fb, &mx3fb_pdata);
527 /* Register NOR Flash */
528 mxc_register_device(&armadillo5x0_nor_flash,
529 &armadillo5x0_nor_flash_pdata);
531 /* Register NAND Flash */
532 imx31_add_mxc_nand(&armadillo5x0_nand_board_info);
534 /* set NAND page size to 2k if not configured via boot mode pins */
535 __raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR);
538 /* Get RTC IRQ and register the chip */
539 if (gpio_request(ARMADILLO5X0_RTC_GPIO, "rtc") == 0) {
540 if (gpio_direction_input(ARMADILLO5X0_RTC_GPIO) == 0)
541 armadillo5x0_i2c_rtc.irq = gpio_to_irq(ARMADILLO5X0_RTC_GPIO);
543 gpio_free(ARMADILLO5X0_RTC_GPIO);
545 if (armadillo5x0_i2c_rtc.irq == 0)
546 pr_warning("armadillo5x0_init: failed to get RTC IRQ\n");
547 i2c_register_board_info(1, &armadillo5x0_i2c_rtc, 1);
550 #if defined(CONFIG_USB_ULPI)
551 usbotg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
552 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
553 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
554 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
556 imx31_add_mxc_ehci_otg(&usbotg_pdata);
557 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
561 static void __init armadillo5x0_timer_init(void)
563 mx31_clocks_init(26000000);
566 static struct sys_timer armadillo5x0_timer = {
567 .init = armadillo5x0_timer_init,
570 MACHINE_START(ARMADILLO5X0, "Armadillo-500")
571 /* Maintainer: Alberto Panizzo */
572 .boot_params = MX3x_PHYS_OFFSET + 0x100,
573 .map_io = mx31_map_io,
574 .init_irq = mx31_init_irq,
575 .timer = &armadillo5x0_timer,
576 .init_machine = armadillo5x0_init,