mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 15:41:40 +00:00
USB: efikamx: Enable USB on EfikaMX and EfikaSB
Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Remy Bohmer <linux@bohmer.net> Cc: Wolfgang Grandegger <wg@denx.de> Cc: Jason Liu <r64343@freescale.com>
This commit is contained in:
Marek Vasut
Remy Bohmer
parent
f93022c3b1
commit
d98d8bc1c9
4 changed files with 270 additions and 6 deletions
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@ -29,6 +29,10 @@ LIB = $(obj)lib$(BOARD).o
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COBJS := efikamx.o
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ifdef CONFIG_CMD_USB
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COBJS += efikamx-usb.o
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endif
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SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
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OBJS := $(addprefix $(obj),$(COBJS))
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SOBJS := $(addprefix $(obj),$(SOBJS))
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210
board/efikamx/efikamx-usb.c
Normal file
210
board/efikamx/efikamx-usb.c
Normal file
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@ -0,0 +1,210 @@
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/*
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* Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com>
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*
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* (C) Copyright 2009 Freescale Semiconductor, Inc.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <usb.h>
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#include <asm/io.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/mx5x_pins.h>
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#include <asm/arch/iomux.h>
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#include <asm/gpio.h>
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#include <usb/ehci-fsl.h>
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#include <usb/ulpi.h>
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#include <errno.h>
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#include "../../drivers/usb/host/ehci.h"
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/* USB pin configuration */
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#define USB_PAD_CONFIG (PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST | \
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PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | \
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PAD_CTL_HYS_ENABLE | PAD_CTL_PUE_PULL)
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/*
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* Configure the USB H1 and USB H2 IOMUX
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*/
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void setup_iomux_usb(void)
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{
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setup_iomux_usb_h1();
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if (machine_is_efikasb())
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setup_iomux_usb_h2();
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/* USB PHY reset */
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mxc_request_iomux(MX51_PIN_EIM_D27, IOMUX_CONFIG_ALT1);
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mxc_iomux_set_pad(MX51_PIN_EIM_D27, PAD_CTL_PKE_ENABLE |
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PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH);
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/* USB HUB reset */
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mxc_request_iomux(MX51_PIN_GPIO1_5, IOMUX_CONFIG_ALT0);
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mxc_iomux_set_pad(MX51_PIN_GPIO1_5, PAD_CTL_PKE_ENABLE |
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PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH);
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/* WIFI EN (act low) */
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mxc_request_iomux(MX51_PIN_EIM_A22, IOMUX_CONFIG_GPIO);
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mxc_iomux_set_pad(MX51_PIN_EIM_A22, 0);
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/* WIFI RESET */
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mxc_request_iomux(MX51_PIN_EIM_A16, IOMUX_CONFIG_GPIO);
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mxc_iomux_set_pad(MX51_PIN_EIM_A16, 0);
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/* BT EN (act low) */
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mxc_request_iomux(MX51_PIN_EIM_A17, IOMUX_CONFIG_GPIO);
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mxc_iomux_set_pad(MX51_PIN_EIM_A17, 0);
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}
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/*
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* Enable devices connected to USB BUSes
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*/
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static void efika_usb_enable_devices(void)
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{
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/* Enable Bluetooth */
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gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A17), 0);
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udelay(10000);
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gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A17), 1);
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/* Enable WiFi */
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gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A22), 1);
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udelay(10000);
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/* Reset the WiFi chip */
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gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A16), 0);
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udelay(10000);
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gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A16), 1);
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}
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/*
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* Reset USB HUB (or HUBs on EfikaSB)
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*/
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static void efika_usb_hub_reset(void)
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{
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/* HUB reset */
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gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5), 1);
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udelay(1000);
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gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5), 0);
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udelay(1000);
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gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5), 1);
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}
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/*
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* Reset USB PHY (or PHYs on EfikaSB)
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*/
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static void efika_usb_phy_reset(void)
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{
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/* SMSC 3317 PHY reset */
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gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_D27), 0);
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udelay(1000);
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gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_D27), 1);
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}
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static void efika_ehci_init(struct usb_ehci *ehci, uint32_t stp_gpio,
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uint32_t alt0, uint32_t alt1)
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{
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int ret;
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struct ulpi_regs *ulpi = (struct ulpi_regs *)0;
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mxc_request_iomux(stp_gpio, alt0);
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mxc_iomux_set_pad(stp_gpio, PAD_CTL_DRV_HIGH |
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PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
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gpio_direction_output(IOMUX_TO_GPIO(stp_gpio), 0);
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udelay(1000);
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gpio_set_value(IOMUX_TO_GPIO(stp_gpio), 1);
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udelay(1000);
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mxc_request_iomux(stp_gpio, alt1);
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mxc_iomux_set_pad(stp_gpio, USB_PAD_CONFIG);
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udelay(10000);
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ret = ulpi_init((u32)&ehci->ulpi_viewpoint);
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if (ret) {
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printf("Efika USB ULPI initialization failed\n");
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return;
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}
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/* ULPI set flags */
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ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl,
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ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN |
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ULPI_OTG_EXTVBUSIND);
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ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->function_ctrl,
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ULPI_FC_FULL_SPEED | ULPI_FC_OPMODE_NORMAL |
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ULPI_FC_SUSPENDM);
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ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->iface_ctrl, 0);
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/* Set VBus */
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ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl_set,
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ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
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/*
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* Set VBusChrg
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*
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* NOTE: This violates USB specification, but otherwise, USB on Efika
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* doesn't work.
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*/
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ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl_set,
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ULPI_OTG_CHRGVBUS);
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}
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int board_ehci_hcd_init(int port)
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{
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/* Init iMX51 EHCI */
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efika_usb_phy_reset();
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efika_usb_hub_reset();
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efika_usb_enable_devices();
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return 0;
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}
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void ehci_powerup_fixup(uint32_t *status_reg, uint32_t *reg)
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{
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uint32_t port = OTG_BASE_ADDR + (0x200 * CONFIG_MXC_USB_PORT);
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struct usb_ehci *ehci = (struct usb_ehci *)port;
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struct ulpi_regs *ulpi = (struct ulpi_regs *)0;
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ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl_set,
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ULPI_OTG_CHRGVBUS);
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wait_ms(50);
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/* terminate the reset */
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*reg = ehci_readl(status_reg);
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*reg |= EHCI_PS_PE;
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}
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void board_ehci_hcd_postinit(struct usb_ehci *ehci, int port)
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{
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uint32_t tmp;
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if (port == 0) {
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/* Adjust UTMI PHY frequency to 24MHz */
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tmp = readl(OTG_BASE_ADDR + 0x80c);
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tmp = (tmp & ~0x3) | 0x01;
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writel(tmp, OTG_BASE_ADDR + 0x80c);
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} else if (port == 1) {
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efika_ehci_init(ehci, MX51_PIN_USBH1_STP,
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IOMUX_CONFIG_ALT2, IOMUX_CONFIG_ALT0);
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} else if ((port == 2) && machine_is_efikasb()) {
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efika_ehci_init(ehci, MX51_PIN_EIM_A26,
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IOMUX_CONFIG_ALT1, IOMUX_CONFIG_ALT2);
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}
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if (port)
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mdelay(10);
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}
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@ -539,6 +539,15 @@ void setup_iomux_ata(void)
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static inline void setup_iomux_ata(void) { }
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#endif
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/*
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* EHCI USB
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*/
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#ifdef CONFIG_CMD_USB
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extern void setup_iomux_usb(void);
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#else
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static inline void setup_iomux_usb(void) { }
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#endif
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/*
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* LED configuration
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*/
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@ -688,6 +697,12 @@ int board_late_init(void)
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setup_iomux_led();
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setup_iomux_ata();
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setup_iomux_usb();
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if (machine_is_efikasb())
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setenv("preboot", "usb reset ; setenv stdin usbkbd\0");
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setup_iomux_led();
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efikamx_toggle_led(EFIKAMX_LED_BLUE);
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@ -44,6 +44,10 @@
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#define CONFIG_SYS_TEXT_BASE 0x97800000
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#define CONFIG_L2_OFF
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#define CONFIG_SYS_ICACHE_OFF
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#define CONFIG_SYS_DCACHE_OFF
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/*
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* Bootloader Components Configuration
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*/
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@ -53,6 +57,8 @@
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#define CONFIG_CMD_FAT
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#define CONFIG_CMD_EXT2
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#define CONFIG_CMD_IDE
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#define CONFIG_CMD_NET
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#define CONFIG_CMD_DATE
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#undef CONFIG_CMD_IMLS
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/*
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@ -174,18 +180,47 @@
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#define CONFIG_MXC_ATA_PIO_MODE 4
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#endif
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/*
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* USB
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*/
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#define CONFIG_CMD_USB
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#ifdef CONFIG_CMD_USB
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#define CONFIG_USB_EHCI /* Enable EHCI USB support */
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#define CONFIG_USB_EHCI_MX5
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#define CONFIG_USB_ULPI
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#define CONFIG_USB_ULPI_VIEWPORT
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#define CONFIG_MXC_USB_PORT 1
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#if (CONFIG_MXC_USB_PORT == 0)
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#define CONFIG_MXC_USB_PORTSC (1 << 28)
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#define CONFIG_MXC_USB_FLAGS MXC_EHCI_INTERNAL_PHY
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#else
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#define CONFIG_MXC_USB_PORTSC (2 << 30)
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#define CONFIG_MXC_USB_FLAGS 0
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#endif
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#define CONFIG_EHCI_IS_TDI
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#define CONFIG_USB_STORAGE
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#define CONFIG_USB_HOST_ETHER
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#define CONFIG_USB_KEYBOARD
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#define CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP
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#define CONFIG_PREBOOT
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/* USB NET */
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#ifdef CONFIG_CMD_NET
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#define CONFIG_USB_ETHER_ASIX
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#define CONFIG_NET_MULTI
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#define CONFIG_CMD_PING
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#define CONFIG_CMD_DHCP
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#endif
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#endif /* CONFIG_CMD_USB */
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/*
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* Filesystems
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*/
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#ifdef CONFIG_CMD_FAT
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#define CONFIG_DOS_PARTITION
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#ifdef CONFIG_CMD_NET
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#define CONFIG_CMD_NFS
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#endif
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#endif
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#undef CONFIG_CMD_PING
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#undef CONFIG_CMD_DHCP
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#undef CONFIG_CMD_NET
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#undef CONFIG_CMD_NFS
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#define CONFIG_CMD_DATE
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/*
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* Miscellaneous configurable options
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