diff options
author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2009-04-03 12:46:58 +0200 |
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committer | Remy Bohmer <linux@bohmer.net> | 2009-04-06 20:40:46 +0200 |
commit | 2731b9a86685190d26b1883f27afda5ac8e1a313 (patch) | |
tree | 83511c3f504e62eb3ac129f3332d2bcaf25d6e32 /drivers/usb/host/ehci-fsl.c | |
parent | 712ac6a1a6909a58d6549fb220cc921a7e9f9979 (diff) | |
download | u-boot-imx-2731b9a86685190d26b1883f27afda5ac8e1a313.zip u-boot-imx-2731b9a86685190d26b1883f27afda5ac8e1a313.tar.gz u-boot-imx-2731b9a86685190d26b1883f27afda5ac8e1a313.tar.bz2 |
drivers/usb: regorganisation
move to linux usb driver organisation
as following
drivers/usb/gadget
drivers/usb/host
drivers/usb/musb
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Remy Bohmer <linux@bohmer.net>
Diffstat (limited to 'drivers/usb/host/ehci-fsl.c')
-rw-r--r-- | drivers/usb/host/ehci-fsl.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c new file mode 100644 index 0000000..86ee1d5 --- /dev/null +++ b/drivers/usb/host/ehci-fsl.c @@ -0,0 +1,100 @@ +/* + * (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB + * + * Author: Tor Krill tor@excito.com + * + * 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 <pci.h> +#include <usb.h> +#include <mpc83xx.h> +#include <asm/io.h> +#include <asm/bitops.h> + +#include "ehci.h" +#include "ehci-fsl.h" +#include "ehci-core.h" + +/* + * Create the appropriate control structures to manage + * a new EHCI host controller. + * + * Excerpts from linux ehci fsl driver. + */ +int ehci_hcd_init(void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + uint32_t addr, temp; + + addr = (uint32_t)&(im->usb[0]); + hccr = (struct ehci_hccr *)(addr + FSL_SKIP_PCI); + hcor = (struct ehci_hcor *)((uint32_t) hccr + + HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + + /* Configure clock */ + clrsetbits_be32(&(im->clk.sccr), MPC83XX_SCCR_USB_MASK, + MPC83XX_SCCR_USB_DRCM_11); + + /* Confgure interface. */ + temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL)); + out_be32((void *)(addr + FSL_SOC_USB_CTRL), temp + | REFSEL_16MHZ | UTMI_PHY_EN); + + /* Wait for clock to stabilize */ + do { + temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL)); + udelay(1000); + } while (!(temp & PHY_CLK_VALID)); + + /* Set to Host mode */ + temp = in_le32((void *)(addr + FSL_SOC_USB_USBMODE)); + out_le32((void *)(addr + FSL_SOC_USB_USBMODE), temp | CM_HOST); + + out_be32((void *)(addr + FSL_SOC_USB_SNOOP1), SNOOP_SIZE_2GB); + out_be32((void *)(addr + FSL_SOC_USB_SNOOP2), + 0x80000000 | SNOOP_SIZE_2GB); + + /* Init phy */ + /* TODO: handle different phys? */ + out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI); + + /* Enable interface. */ + temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL)); + out_be32((void *)(addr + FSL_SOC_USB_CTRL), temp | USB_EN); + + out_be32((void *)(addr + FSL_SOC_USB_PRICTRL), 0x0000000c); + out_be32((void *)(addr + FSL_SOC_USB_AGECNTTHRSH), 0x00000040); + out_be32((void *)(addr + FSL_SOC_USB_SICTRL), 0x00000001); + + /* Enable interface. */ + temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL)); + out_be32((void *)(addr + FSL_SOC_USB_CTRL), temp | USB_EN); + + temp = in_le32((void *)(addr + FSL_SOC_USB_USBMODE)); + + return 0; +} + +/* + * Destroy the appropriate control structures corresponding + * the the EHCI host controller. + */ +int ehci_hcd_stop(void) +{ + return 0; +} |