diff options
Diffstat (limited to 'drivers/usb/host/ehci-mpc512x.c')
| -rw-r--r-- | drivers/usb/host/ehci-mpc512x.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/drivers/usb/host/ehci-mpc512x.c b/drivers/usb/host/ehci-mpc512x.c deleted file mode 100644 index bb4f461..0000000 --- a/drivers/usb/host/ehci-mpc512x.c +++ /dev/null @@ -1,140 +0,0 @@ -/* - * (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 ); -} |