mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 02:38:56 +00:00
d144f96a48
Use definitions from ehci.h instead. Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Acked-by: Marek Vasut <marex@denx.de> Tested-by: Simon Glass <sjg@chromium.org>
140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
/*
|
|
* (C) Copyright 2010, Damien Dusha, <d.dusha@gmail.com>
|
|
*
|
|
* (C) Copyright 2009, Value Team S.p.A.
|
|
* Francesco Rendine, <francesco.rendine@valueteam.com>
|
|
*
|
|
* (C) Copyright 2009 Freescale Semiconductor, Inc.
|
|
*
|
|
* (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB
|
|
*
|
|
* Author: Tor Krill tor@excito.com
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <pci.h>
|
|
#include <usb.h>
|
|
#include <asm/io.h>
|
|
#include <usb/ehci-ci.h>
|
|
|
|
#include "ehci.h"
|
|
|
|
static void fsl_setup_phy(volatile struct ehci_hcor *);
|
|
static void fsl_platform_set_host_mode(volatile struct usb_ehci *ehci);
|
|
static int reset_usb_controller(volatile struct usb_ehci *ehci);
|
|
static void usb_platform_dr_init(volatile struct usb_ehci *ehci);
|
|
|
|
/*
|
|
* Initialize SOC FSL EHCI Controller
|
|
*
|
|
* This code is derived from EHCI FSL USB Linux driver for MPC5121
|
|
*
|
|
*/
|
|
int ehci_hcd_init(int index, enum usb_init_type init,
|
|
struct ehci_hccr **hccr, struct ehci_hcor **hcor)
|
|
{
|
|
volatile struct usb_ehci *ehci;
|
|
|
|
/* Hook the memory mapped registers for EHCI-Controller */
|
|
ehci = (struct usb_ehci *)CONFIG_SYS_FSL_USB1_ADDR;
|
|
*hccr = (struct ehci_hccr *)((uint32_t)&(ehci->caplength));
|
|
*hcor = (struct ehci_hcor *)((uint32_t) *hccr +
|
|
HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
|
|
|
|
/* configure interface for UTMI_WIDE */
|
|
usb_platform_dr_init(ehci);
|
|
|
|
/* Init Phy USB0 to UTMI+ */
|
|
fsl_setup_phy(*hcor);
|
|
|
|
/* Set to host mode */
|
|
fsl_platform_set_host_mode(ehci);
|
|
|
|
/*
|
|
* Setting the burst size seems to be required to prevent the
|
|
* USB from hanging when communicating with certain USB Mass
|
|
* storage devices. This was determined by analysing the
|
|
* EHCI registers under Linux vs U-Boot and burstsize was the
|
|
* major non-interrupt related difference between the two
|
|
* implementations.
|
|
*
|
|
* Some USB sticks behave better than others. In particular,
|
|
* the following USB stick is especially problematic:
|
|
* 0930:6545 Toshiba Corp
|
|
*
|
|
* The burstsize is set here to match the Linux implementation.
|
|
*/
|
|
out_be32(&ehci->burstsize, FSL_EHCI_TXPBURST(8) |
|
|
FSL_EHCI_RXPBURST(8));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Destroy the appropriate control structures corresponding
|
|
* the the EHCI host controller.
|
|
*/
|
|
int ehci_hcd_stop(int index)
|
|
{
|
|
volatile struct usb_ehci *ehci;
|
|
int exit_status = 0;
|
|
|
|
/* Reset the USB controller */
|
|
ehci = (struct usb_ehci *)CONFIG_SYS_FSL_USB1_ADDR;
|
|
exit_status = reset_usb_controller(ehci);
|
|
|
|
return exit_status;
|
|
}
|
|
|
|
static int reset_usb_controller(volatile struct usb_ehci *ehci)
|
|
{
|
|
unsigned int i;
|
|
|
|
/* Command a reset of the USB Controller */
|
|
out_be32(&(ehci->usbcmd), CMD_RESET);
|
|
|
|
/* Wait for the reset process to finish */
|
|
for (i = 65535 ; i > 0 ; i--) {
|
|
/*
|
|
* The host will set this bit to zero once the
|
|
* reset process is complete
|
|
*/
|
|
if ((in_be32(&(ehci->usbcmd)) & CMD_RESET) == 0)
|
|
return 0;
|
|
}
|
|
|
|
/* Hub did not reset in time */
|
|
return -1;
|
|
}
|
|
|
|
static void fsl_setup_phy(volatile struct ehci_hcor *hcor)
|
|
{
|
|
uint32_t portsc;
|
|
|
|
portsc = ehci_readl(&hcor->or_portsc[0]);
|
|
portsc &= ~(PORT_PTS_MSK | PORT_PTS_PTW);
|
|
|
|
/* Enable the phy mode to UTMI Wide */
|
|
portsc |= PORT_PTS_PTW;
|
|
portsc |= PORT_PTS_UTMI;
|
|
|
|
ehci_writel(&hcor->or_portsc[0], portsc);
|
|
}
|
|
|
|
static void fsl_platform_set_host_mode(volatile struct usb_ehci *ehci)
|
|
{
|
|
uint32_t temp;
|
|
|
|
temp = in_le32(&ehci->usbmode);
|
|
temp |= CM_HOST | ES_BE;
|
|
out_le32(&ehci->usbmode, temp);
|
|
}
|
|
|
|
static void usb_platform_dr_init(volatile struct usb_ehci *ehci)
|
|
{
|
|
/* Configure interface for UTMI_WIDE */
|
|
out_be32(&ehci->isiphyctrl, PHYCTRL_PHYE | PHYCTRL_PXE);
|
|
out_be32(&ehci->usbgenctrl, GC_PPP | GC_PFP );
|
|
}
|