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linux-2.6/arch/arm/mach-mx3/mach-armadillo5x0.c
Igor Grinberg 13dd0c9767 USB: otg/ulpi: extend the generic ulpi driver. 
1) Introduce ulpi specific flags for control of the ulpi phy
2) Extend the generic ulpi driver with support for Function and
Interface control of upli phy
3) Update the platforms using the generic ulpi driver with new ulpi
flags
4) Remove the otg control flags not in use

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:40 -07:00

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/*
* armadillo5x0.c
*
* Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
* updates in http://alberdroid.blogspot.com/
*
* Based on Atmark Techno, Inc. armadillo 500 BSP 2008
* Based on mx31ads.c and pcm037.c Great Work!
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/smsc911x.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
#include <linux/io.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/i2c.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <linux/delay.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/memory.h>
#include <asm/mach/map.h>
#include <mach/common.h>
#include <mach/iomux-mx3.h>
#include <mach/mmc.h>
#include <mach/ipu.h>
#include <mach/mx3fb.h>
#include <mach/mxc_ehci.h>
#include <mach/ulpi.h>
#include "devices-imx31.h"
#include "devices.h"
#include "crm_regs.h"
static int armadillo5x0_pins[] = {
/* UART1 */
MX31_PIN_CTS1__CTS1,
MX31_PIN_RTS1__RTS1,
MX31_PIN_TXD1__TXD1,
MX31_PIN_RXD1__RXD1,
/* UART2 */
MX31_PIN_CTS2__CTS2,
MX31_PIN_RTS2__RTS2,
MX31_PIN_TXD2__TXD2,
MX31_PIN_RXD2__RXD2,
/* LAN9118_IRQ */
IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
/* SDHC1 */
MX31_PIN_SD1_DATA3__SD1_DATA3,
MX31_PIN_SD1_DATA2__SD1_DATA2,
MX31_PIN_SD1_DATA1__SD1_DATA1,
MX31_PIN_SD1_DATA0__SD1_DATA0,
MX31_PIN_SD1_CLK__SD1_CLK,
MX31_PIN_SD1_CMD__SD1_CMD,
/* Framebuffer */
MX31_PIN_LD0__LD0,
MX31_PIN_LD1__LD1,
MX31_PIN_LD2__LD2,
MX31_PIN_LD3__LD3,
MX31_PIN_LD4__LD4,
MX31_PIN_LD5__LD5,
MX31_PIN_LD6__LD6,
MX31_PIN_LD7__LD7,
MX31_PIN_LD8__LD8,
MX31_PIN_LD9__LD9,
MX31_PIN_LD10__LD10,
MX31_PIN_LD11__LD11,
MX31_PIN_LD12__LD12,
MX31_PIN_LD13__LD13,
MX31_PIN_LD14__LD14,
MX31_PIN_LD15__LD15,
MX31_PIN_LD16__LD16,
MX31_PIN_LD17__LD17,
MX31_PIN_VSYNC3__VSYNC3,
MX31_PIN_HSYNC__HSYNC,
MX31_PIN_FPSHIFT__FPSHIFT,
MX31_PIN_DRDY0__DRDY0,
IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
/* I2C2 */
MX31_PIN_CSPI2_MOSI__SCL,
MX31_PIN_CSPI2_MISO__SDA,
/* OTG */
MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
MX31_PIN_USBOTG_CLK__USBOTG_CLK,
MX31_PIN_USBOTG_DIR__USBOTG_DIR,
MX31_PIN_USBOTG_NXT__USBOTG_NXT,
MX31_PIN_USBOTG_STP__USBOTG_STP,
/* USB host 2 */
IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_STXD3, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_SRXD3, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_SCK3, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_SFS3, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_STXD6, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_SRXD6, IOMUX_CONFIG_FUNC),
};
/* USB */
#if defined(CONFIG_USB_ULPI)
#define OTG_RESET IOMUX_TO_GPIO(MX31_PIN_STXD4)
#define USBH2_RESET IOMUX_TO_GPIO(MX31_PIN_SCK6)
#define USBH2_CS IOMUX_TO_GPIO(MX31_PIN_GPIO1_3)
#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
static int usbotg_init(struct platform_device *pdev)
{
int err;
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
/* Chip already enabled by hardware */
/* OTG phy reset*/
err = gpio_request(OTG_RESET, "USB-OTG-RESET");
if (err) {
pr_err("Failed to request the usb otg reset gpio\n");
return err;
}
err = gpio_direction_output(OTG_RESET, 1/*HIGH*/);
if (err) {
pr_err("Failed to reset the usb otg phy\n");
goto otg_free_reset;
}
gpio_set_value(OTG_RESET, 0/*LOW*/);
mdelay(5);
gpio_set_value(OTG_RESET, 1/*HIGH*/);
return 0;
otg_free_reset:
gpio_free(OTG_RESET);
return err;
}
static int usbh2_init(struct platform_device *pdev)
{
int err;
mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
mxc_iomux_set_gpr(MUX_PGP_UH2, true);
/* Enable the chip */
err = gpio_request(USBH2_CS, "USB-H2-CS");
if (err) {
pr_err("Failed to request the usb host 2 CS gpio\n");
return err;
}
err = gpio_direction_output(USBH2_CS, 0/*Enabled*/);
if (err) {
pr_err("Failed to drive the usb host 2 CS gpio\n");
goto h2_free_cs;
}
/* H2 phy reset*/
err = gpio_request(USBH2_RESET, "USB-H2-RESET");
if (err) {
pr_err("Failed to request the usb host 2 reset gpio\n");
goto h2_free_cs;
}
err = gpio_direction_output(USBH2_RESET, 1/*HIGH*/);
if (err) {
pr_err("Failed to reset the usb host 2 phy\n");
goto h2_free_reset;
}
gpio_set_value(USBH2_RESET, 0/*LOW*/);
mdelay(5);
gpio_set_value(USBH2_RESET, 1/*HIGH*/);
return 0;
h2_free_reset:
gpio_free(USBH2_RESET);
h2_free_cs:
gpio_free(USBH2_CS);
return err;
}
static struct mxc_usbh_platform_data usbotg_pdata = {
.init = usbotg_init,
.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
.flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
};
static struct mxc_usbh_platform_data usbh2_pdata = {
.init = usbh2_init,
.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
.flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_DIFF_UNI,
};
#endif /* CONFIG_USB_ULPI */
/* RTC over I2C*/
#define ARMADILLO5X0_RTC_GPIO IOMUX_TO_GPIO(MX31_PIN_SRXD4)
static struct i2c_board_info armadillo5x0_i2c_rtc = {
I2C_BOARD_INFO("s35390a", 0x30),
};
/* GPIO BUTTONS */
static struct gpio_keys_button armadillo5x0_buttons[] = {
{
.code = KEY_ENTER, /*28*/
.gpio = IOMUX_TO_GPIO(MX31_PIN_SCLK0),
.active_low = 1,
.desc = "menu",
.wakeup = 1,
}, {
.code = KEY_BACK, /*158*/
.gpio = IOMUX_TO_GPIO(MX31_PIN_SRST0),
.active_low = 1,
.desc = "back",
.wakeup = 1,
}
};
static struct gpio_keys_platform_data armadillo5x0_button_data = {
.buttons = armadillo5x0_buttons,
.nbuttons = ARRAY_SIZE(armadillo5x0_buttons),
};
static struct platform_device armadillo5x0_button_device = {
.name = "gpio-keys",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &armadillo5x0_button_data,
}
};
/*
* NAND Flash
*/
static const struct mxc_nand_platform_data
armadillo5x0_nand_board_info __initconst = {
.width = 1,
.hw_ecc = 1,
};
/*
* MTD NOR Flash
*/
static struct mtd_partition armadillo5x0_nor_flash_partitions[] = {
{
.name = "nor.bootloader",
.offset = 0x00000000,
.size = 4*32*1024,
}, {
.name = "nor.kernel",
.offset = MTDPART_OFS_APPEND,
.size = 16*128*1024,
}, {
.name = "nor.userland",
.offset = MTDPART_OFS_APPEND,
.size = 110*128*1024,
}, {
.name = "nor.config",
.offset = MTDPART_OFS_APPEND,
.size = 1*128*1024,
},
};
static struct physmap_flash_data armadillo5x0_nor_flash_pdata = {
.width = 2,
.parts = armadillo5x0_nor_flash_partitions,
.nr_parts = ARRAY_SIZE(armadillo5x0_nor_flash_partitions),
};
static struct resource armadillo5x0_nor_flash_resource = {
.flags = IORESOURCE_MEM,
.start = MX31_CS0_BASE_ADDR,
.end = MX31_CS0_BASE_ADDR + SZ_64M - 1,
};
static struct platform_device armadillo5x0_nor_flash = {
.name = "physmap-flash",
.id = -1,
.num_resources = 1,
.resource = &armadillo5x0_nor_flash_resource,
};
/*
* FB support
*/
static const struct fb_videomode fb_modedb[] = {
{ /* 640x480 @ 60 Hz */
.name = "CRT-VGA",
.refresh = 60,
.xres = 640,
.yres = 480,
.pixclock = 39721,
.left_margin = 35,
.right_margin = 115,
.upper_margin = 43,
.lower_margin = 1,
.hsync_len = 10,
.vsync_len = 1,
.sync = FB_SYNC_OE_ACT_HIGH,
.vmode = FB_VMODE_NONINTERLACED,
.flag = 0,
}, {/* 800x600 @ 56 Hz */
.name = "CRT-SVGA",
.refresh = 56,
.xres = 800,
.yres = 600,
.pixclock = 30000,
.left_margin = 30,
.right_margin = 108,
.upper_margin = 13,
.lower_margin = 10,
.hsync_len = 10,
.vsync_len = 1,
.sync = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
FB_SYNC_VERT_HIGH_ACT,
.vmode = FB_VMODE_NONINTERLACED,
.flag = 0,
},
};
static struct ipu_platform_data mx3_ipu_data = {
.irq_base = MXC_IPU_IRQ_START,
};
static struct mx3fb_platform_data mx3fb_pdata = {
.dma_dev = &mx3_ipu.dev,
.name = "CRT-VGA",
.mode = fb_modedb,
.num_modes = ARRAY_SIZE(fb_modedb),
};
/*
* SDHC 1
* MMC support
*/
static int armadillo5x0_sdhc1_get_ro(struct device *dev)
{
return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
}
static int armadillo5x0_sdhc1_init(struct device *dev,
irq_handler_t detect_irq, void *data)
{
int ret;
int gpio_det, gpio_wp;
gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
ret = gpio_request(gpio_det, "sdhc-card-detect");
if (ret)
return ret;
gpio_direction_input(gpio_det);
ret = gpio_request(gpio_wp, "sdhc-write-protect");
if (ret)
goto err_gpio_free;
gpio_direction_input(gpio_wp);
/* When supported the trigger type have to be BOTH */
ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), detect_irq,
IRQF_DISABLED | IRQF_TRIGGER_FALLING,
"sdhc-detect", data);
if (ret)
goto err_gpio_free_2;
return 0;
err_gpio_free_2:
gpio_free(gpio_wp);
err_gpio_free:
gpio_free(gpio_det);
return ret;
}
static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
{
free_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), data);
gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
}
static struct imxmmc_platform_data sdhc_pdata = {
.get_ro = armadillo5x0_sdhc1_get_ro,
.init = armadillo5x0_sdhc1_init,
.exit = armadillo5x0_sdhc1_exit,
};
/*
* SMSC 9118
* Network support
*/
static struct resource armadillo5x0_smc911x_resources[] = {
{
.start = MX31_CS3_BASE_ADDR,
.end = MX31_CS3_BASE_ADDR + SZ_32M - 1,
.flags = IORESOURCE_MEM,
}, {
.start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
.end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
},
};
static struct smsc911x_platform_config smsc911x_info = {
.flags = SMSC911X_USE_16BIT,
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
};
static struct platform_device armadillo5x0_smc911x_device = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(armadillo5x0_smc911x_resources),
.resource = armadillo5x0_smc911x_resources,
.dev = {
.platform_data = &smsc911x_info,
},
};
/* UART device data */
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
static struct platform_device *devices[] __initdata = {
&armadillo5x0_smc911x_device,
&armadillo5x0_button_device,
};
/*
* Perform board specific initializations
*/
static void __init armadillo5x0_init(void)
{
mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
platform_add_devices(devices, ARRAY_SIZE(devices));
imx31_add_imx_i2c1(NULL);
/* Register UART */
imx31_add_imx_uart0(&uart_pdata);
imx31_add_imx_uart1(&uart_pdata);
/* SMSC9118 IRQ pin */
gpio_direction_input(MX31_PIN_GPIO1_0);
/* Register SDHC */
mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
/* Register FB */
mxc_register_device(&mx3_ipu, &mx3_ipu_data);
mxc_register_device(&mx3_fb, &mx3fb_pdata);
/* Register NOR Flash */
mxc_register_device(&armadillo5x0_nor_flash,
&armadillo5x0_nor_flash_pdata);
/* Register NAND Flash */
imx31_add_mxc_nand(&armadillo5x0_nand_board_info);
/* set NAND page size to 2k if not configured via boot mode pins */
__raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR);
/* RTC */
/* Get RTC IRQ and register the chip */
if (gpio_request(ARMADILLO5X0_RTC_GPIO, "rtc") == 0) {
if (gpio_direction_input(ARMADILLO5X0_RTC_GPIO) == 0)
armadillo5x0_i2c_rtc.irq = gpio_to_irq(ARMADILLO5X0_RTC_GPIO);
else
gpio_free(ARMADILLO5X0_RTC_GPIO);
}
if (armadillo5x0_i2c_rtc.irq == 0)
pr_warning("armadillo5x0_init: failed to get RTC IRQ\n");
i2c_register_board_info(1, &armadillo5x0_i2c_rtc, 1);
/* USB */
#if defined(CONFIG_USB_ULPI)
usbotg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
mxc_register_device(&mxc_otg_host, &usbotg_pdata);
mxc_register_device(&mxc_usbh2, &usbh2_pdata);
#endif
}
static void __init armadillo5x0_timer_init(void)
{
mx31_clocks_init(26000000);
}
static struct sys_timer armadillo5x0_timer = {
.init = armadillo5x0_timer_init,
};
MACHINE_START(ARMADILLO5X0, "Armadillo-500")
/* Maintainer: Alberto Panizzo */
.phys_io = MX31_AIPS1_BASE_ADDR,
.io_pg_offst = (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc,
.boot_params = MX3x_PHYS_OFFSET + 0x100,
.map_io = mx31_map_io,
.init_irq = mx31_init_irq,
.timer = &armadillo5x0_timer,
.init_machine = armadillo5x0_init,
MACHINE_END
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