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mx31moboard: OTG host support for smartbot board

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The Eyebot robot needs the OTG port in host mode on the smartbot.

Add a new board definition so we can select the usb host/device
mode at boot with the mx31moboard_baseboard boot parameter.

Signed-off-by: Philippe Rétornaz <philippe.retornaz@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Philippe Rétornaz 2010-05-11 16:57:51 +02:00 committed by Sascha Hauer
parent 66c202ad9a
commit 3a47b1a4f1
3 changed files with 41 additions and 4 deletions
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3
arch/arm/mach-mx3/mach-mx31moboard.c
View File

@ -491,7 +491,8 @@ static void __init mxc_board_init(void)
mx31moboard_marxbot_init();
break;
case MX31SMARTBOT:
mx31moboard_smartbot_init();
case MX31EYEBOT:
mx31moboard_smartbot_init(mx31moboard_baseboard);
break;
default:
printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",

39
arch/arm/mach-mx3/mx31moboard-smartbot.c
View File

@ -25,10 +25,16 @@
#include <linux/types.h>
#include <linux/fsl_devices.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/board-mx31moboard.h>
#include <mach/mxc_ehci.h>
#include <mach/ulpi.h>
#include <media/soc_camera.h>
@ -122,6 +128,24 @@ static struct fsl_usb2_platform_data usb_pdata = {
.phy_mode = FSL_USB2_PHY_ULPI,
};
#if defined(CONFIG_USB_ULPI)
static struct mxc_usbh_platform_data otg_host_pdata = {
.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
.flags = MXC_EHCI_POWER_PINS_ENABLED,
};
static int __init smartbot_otg_host_init(void)
{
otg_host_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
return mxc_register_device(&mxc_otg_host, &otg_host_pdata);
}
#else
static inline int smartbot_otg_host_init(void) { return 0; }
#endif
#define POWER_EN IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
#define DSPIC_RST_B IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
#define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
@ -152,7 +176,7 @@ static void smartbot_resets_init(void)
/*
* system init for baseboard usage. Will be called by mx31moboard init.
*/
void __init mx31moboard_smartbot_init(void)
void __init mx31moboard_smartbot_init(int board)
{
printk(KERN_INFO "Initializing mx31smartbot peripherals\n");
@ -161,7 +185,18 @@ void __init mx31moboard_smartbot_init(void)
mxc_register_device(&mxc_uart_device1, &uart_pdata);
mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
switch (board) {
case MX31SMARTBOT:
mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
break;
case MX31EYEBOT:
smartbot_otg_host_init();
break;
default:
printk(KERN_WARNING "Unknown board %d, USB OTG not initialized",
board);
}
smartbot_resets_init();

3
arch/arm/plat-mxc/include/mach/board-mx31moboard.h
View File

@ -26,6 +26,7 @@ enum mx31moboard_boards {
MX31DEVBOARD = 1,
MX31MARXBOT = 2,
MX31SMARTBOT = 3,
MX31EYEBOT = 4,
};
/*
@ -35,7 +36,7 @@ enum mx31moboard_boards {
extern void mx31moboard_devboard_init(void);
extern void mx31moboard_marxbot_init(void);
extern void mx31moboard_smartbot_init(void);
extern void mx31moboard_smartbot_init(int board);
#endif