mirror of
https://github.com/AsahiLinux/u-boot
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51ab142b8b
- fix ehci_readl, ehci_writel - introduce new define in ehci.h - introduce the handshake function for waiting on a register - fix usb_ehci_fsl with the new HC_LENGTH macro Signed-off-by: Michael Trimarchi <trimarchimichael@yahoo.it> Signed-off-by: Remy Böhmer <linux@bohmer.net>
100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*
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* (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB
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*
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* Author: Tor Krill tor@excito.com
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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 <pci.h>
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#include <usb.h>
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#include <mpc83xx.h>
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#include <asm/io.h>
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#include <asm/bitops.h>
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#include "usb_ehci.h"
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#include "usb_ehci_fsl.h"
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#include "usb_ehci_core.h"
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/*
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* Create the appropriate control structures to manage
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* a new EHCI host controller.
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*
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* Excerpts from linux ehci fsl driver.
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*/
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int ehci_hcd_init(void)
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{
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volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
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uint32_t addr, temp;
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addr = (uint32_t)&(im->usb[0]);
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hccr = (struct ehci_hccr *)(addr + FSL_SKIP_PCI);
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hcor = (struct ehci_hcor *)((uint32_t) hccr +
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HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
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/* Configure clock */
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clrsetbits_be32(&(im->clk.sccr), MPC83XX_SCCR_USB_MASK,
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MPC83XX_SCCR_USB_DRCM_11);
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/* Confgure interface. */
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temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL));
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out_be32((void *)(addr + FSL_SOC_USB_CTRL), temp
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| REFSEL_16MHZ | UTMI_PHY_EN);
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/* Wait for clock to stabilize */
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do {
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temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL));
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udelay(1000);
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} while (!(temp & PHY_CLK_VALID));
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/* Set to Host mode */
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temp = in_le32((void *)(addr + FSL_SOC_USB_USBMODE));
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out_le32((void *)(addr + FSL_SOC_USB_USBMODE), temp | CM_HOST);
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out_be32((void *)(addr + FSL_SOC_USB_SNOOP1), SNOOP_SIZE_2GB);
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out_be32((void *)(addr + FSL_SOC_USB_SNOOP2),
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0x80000000 | SNOOP_SIZE_2GB);
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/* Init phy */
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/* TODO: handle different phys? */
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out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI);
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/* Enable interface. */
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temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL));
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out_be32((void *)(addr + FSL_SOC_USB_CTRL), temp | USB_EN);
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out_be32((void *)(addr + FSL_SOC_USB_PRICTRL), 0x0000000c);
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out_be32((void *)(addr + FSL_SOC_USB_AGECNTTHRSH), 0x00000040);
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out_be32((void *)(addr + FSL_SOC_USB_SICTRL), 0x00000001);
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/* Enable interface. */
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temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL));
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out_be32((void *)(addr + FSL_SOC_USB_CTRL), temp | USB_EN);
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temp = in_le32((void *)(addr + FSL_SOC_USB_USBMODE));
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return 0;
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}
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/*
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* Destroy the appropriate control structures corresponding
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* the the EHCI host controller.
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*/
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int ehci_hcd_stop(void)
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{
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return 0;
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}
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