diff options
Diffstat (limited to 'board/efikamx/efikamx-usb.c')
| -rw-r--r-- | board/efikamx/efikamx-usb.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/board/efikamx/efikamx-usb.c b/board/efikamx/efikamx-usb.c deleted file mode 100644 index 618b39d14..000000000 --- a/board/efikamx/efikamx-usb.c +++ /dev/null @@ -1,216 +0,0 @@ -/* - * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com> - * - * (C) Copyright 2009 Freescale Semiconductor, Inc. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <usb.h> -#include <asm/io.h> -#include <asm/arch/imx-regs.h> -#include <asm/arch/mx5x_pins.h> -#include <asm/arch/iomux.h> -#include <asm/gpio.h> -#include <usb/ehci-fsl.h> -#include <usb/ulpi.h> -#include <errno.h> - -#include "../../drivers/usb/host/ehci.h" - -/* USB pin configuration */ -#define USB_PAD_CONFIG (PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST | \ - PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | \ - PAD_CTL_HYS_ENABLE | PAD_CTL_PUE_PULL) - -/* - * Configure the USB H1 and USB H2 IOMUX - */ -void setup_iomux_usb(void) -{ - setup_iomux_usb_h1(); - - if (machine_is_efikasb()) - setup_iomux_usb_h2(); - - /* USB PHY reset */ - mxc_request_iomux(MX51_PIN_EIM_D27, IOMUX_CONFIG_ALT1); - mxc_iomux_set_pad(MX51_PIN_EIM_D27, PAD_CTL_PKE_ENABLE | - PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH); - - /* USB HUB reset */ - mxc_request_iomux(MX51_PIN_GPIO1_5, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_GPIO1_5, PAD_CTL_PKE_ENABLE | - PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH); - - /* WIFI EN (act low) */ - mxc_request_iomux(MX51_PIN_EIM_A22, IOMUX_CONFIG_GPIO); - mxc_iomux_set_pad(MX51_PIN_EIM_A22, 0); - /* WIFI RESET */ - mxc_request_iomux(MX51_PIN_EIM_A16, IOMUX_CONFIG_GPIO); - mxc_iomux_set_pad(MX51_PIN_EIM_A16, 0); - /* BT EN (act low) */ - mxc_request_iomux(MX51_PIN_EIM_A17, IOMUX_CONFIG_GPIO); - mxc_iomux_set_pad(MX51_PIN_EIM_A17, 0); -} - -/* - * Enable devices connected to USB BUSes - */ -static void efika_usb_enable_devices(void) -{ - /* Enable Bluetooth */ - gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A17), 0); - udelay(10000); - gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A17), 1); - - /* Enable WiFi */ - gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A22), 1); - udelay(10000); - - /* Reset the WiFi chip */ - gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A16), 0); - udelay(10000); - gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A16), 1); -} - -/* - * Reset USB HUB (or HUBs on EfikaSB) - */ -static void efika_usb_hub_reset(void) -{ - /* HUB reset */ - gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5), 1); - udelay(1000); - gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5), 0); - udelay(1000); - gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5), 1); -} - -/* - * Reset USB PHY (or PHYs on EfikaSB) - */ -static void efika_usb_phy_reset(void) -{ - /* SMSC 3317 PHY reset */ - gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_D27), 0); - udelay(1000); - gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_D27), 1); -} - -static void efika_ehci_init(struct usb_ehci *ehci, uint32_t stp_gpio, - uint32_t alt0, uint32_t alt1) -{ - int ret; - struct ulpi_regs *ulpi = (struct ulpi_regs *)0; - struct ulpi_viewport ulpi_vp; - - mxc_request_iomux(stp_gpio, alt0); - mxc_iomux_set_pad(stp_gpio, PAD_CTL_DRV_HIGH | - PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST); - gpio_direction_output(IOMUX_TO_GPIO(stp_gpio), 0); - udelay(1000); - gpio_set_value(IOMUX_TO_GPIO(stp_gpio), 1); - udelay(1000); - - mxc_request_iomux(stp_gpio, alt1); - mxc_iomux_set_pad(stp_gpio, USB_PAD_CONFIG); - udelay(10000); - - ulpi_vp.viewport_addr = (u32)&ehci->ulpi_viewpoint; - ulpi_vp.port_num = 0; - - ret = ulpi_init(&ulpi_vp); - if (ret) { - printf("Efika USB ULPI initialization failed\n"); - return; - } - - /* ULPI set flags */ - ulpi_write(&ulpi_vp, &ulpi->otg_ctrl, - ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN | - ULPI_OTG_EXTVBUSIND); - ulpi_write(&ulpi_vp, &ulpi->function_ctrl, - ULPI_FC_FULL_SPEED | ULPI_FC_OPMODE_NORMAL | - ULPI_FC_SUSPENDM); - ulpi_write(&ulpi_vp, &ulpi->iface_ctrl, 0); - - /* Set VBus */ - ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set, - ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); - - /* - * Set VBusChrg - * - * NOTE: This violates USB specification, but otherwise, USB on Efika - * doesn't work. - */ - ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set, ULPI_OTG_CHRGVBUS); -} - -int board_ehci_hcd_init(int port) -{ - /* Init iMX51 EHCI */ - efika_usb_phy_reset(); - efika_usb_hub_reset(); - efika_usb_enable_devices(); - - return 0; -} - -void ehci_powerup_fixup(uint32_t *status_reg, uint32_t *reg) -{ - uint32_t port = OTG_BASE_ADDR + (0x200 * CONFIG_MXC_USB_PORT); - struct usb_ehci *ehci = (struct usb_ehci *)port; - struct ulpi_regs *ulpi = (struct ulpi_regs *)0; - struct ulpi_viewport ulpi_vp; - - ulpi_vp.viewport_addr = (u32)&ehci->ulpi_viewpoint; - ulpi_vp.port_num = 0; - - ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set, ULPI_OTG_CHRGVBUS); - - mdelay(50); - - /* terminate the reset */ - *reg = ehci_readl(status_reg); - *reg |= EHCI_PS_PE; -} - -void board_ehci_hcd_postinit(struct usb_ehci *ehci, int port) -{ - uint32_t tmp; - - if (port == 0) { - /* Adjust UTMI PHY frequency to 24MHz */ - tmp = readl(OTG_BASE_ADDR + 0x80c); - tmp = (tmp & ~0x3) | 0x01; - writel(tmp, OTG_BASE_ADDR + 0x80c); - } else if (port == 1) { - efika_ehci_init(ehci, MX51_PIN_USBH1_STP, - IOMUX_CONFIG_ALT2, IOMUX_CONFIG_ALT0); - } else if ((port == 2) && machine_is_efikasb()) { - efika_ehci_init(ehci, MX51_PIN_EIM_A26, - IOMUX_CONFIG_ALT1, IOMUX_CONFIG_ALT2); - } - - if (port) - mdelay(10); -} |