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linux-next/arch/arm/mach-omap2/usb-ehci.c
Felipe Balbi 58a5491c93 omap: Add platform init code for EHCI driver 
Add platform init code for EHCI driver.

Various fixes to the original patch by Ajay Kumar Gupta <ajay.gupta@ti.com>
and Anand Gadiyar <gadiyar@ti.com>.

Overo support added by Olof Johansson <olof@lixom.net>
Beagle support added by Koen Kooi <koen@beagleboard.org>
CM-T32 support added by Mike Rapoport <mike@compulab.co.il>

Signed-off-by: Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Koen Kooi <koen@beagleboard.org>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-22 10:24:32 -08:00

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/*
* linux/arch/arm/mach-omap2/usb-ehci.c
*
* This file will contain the board specific details for the
* Synopsys EHCI host controller on OMAP3430
*
* Copyright (C) 2007 Texas Instruments
* Author: Vikram Pandita <vikram.pandita@ti.com>
*
* Generalization by:
* Felipe Balbi <felipe.balbi@nokia.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <asm/io.h>
#include <plat/mux.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <plat/usb.h>
#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
static struct resource ehci_resources[] = {
{
.start = OMAP34XX_EHCI_BASE,
.end = OMAP34XX_EHCI_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = OMAP34XX_UHH_CONFIG_BASE,
.end = OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = OMAP34XX_USBTLL_BASE,
.end = OMAP34XX_USBTLL_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
{ /* general IRQ */
.start = INT_34XX_EHCI_IRQ,
.flags = IORESOURCE_IRQ,
}
};
static u64 ehci_dmamask = ~(u32)0;
static struct platform_device ehci_device = {
.name = "ehci-omap",
.id = 0,
.dev = {
.dma_mask = &ehci_dmamask,
.coherent_dma_mask = 0xffffffff,
.platform_data = NULL,
},
.num_resources = ARRAY_SIZE(ehci_resources),
.resource = ehci_resources,
};
/* MUX settings for EHCI pins */
/*
* setup_ehci_io_mux - initialize IO pad mux for USBHOST
*/
static void setup_ehci_io_mux(enum ehci_hcd_omap_mode *port_mode)
{
switch (port_mode[0]) {
case EHCI_HCD_OMAP_MODE_PHY:
omap_cfg_reg(Y9_3430_USB1HS_PHY_STP);
omap_cfg_reg(Y8_3430_USB1HS_PHY_CLK);
omap_cfg_reg(AA14_3430_USB1HS_PHY_DIR);
omap_cfg_reg(AA11_3430_USB1HS_PHY_NXT);
omap_cfg_reg(W13_3430_USB1HS_PHY_DATA0);
omap_cfg_reg(W12_3430_USB1HS_PHY_DATA1);
omap_cfg_reg(W11_3430_USB1HS_PHY_DATA2);
omap_cfg_reg(Y11_3430_USB1HS_PHY_DATA3);
omap_cfg_reg(W9_3430_USB1HS_PHY_DATA4);
omap_cfg_reg(Y12_3430_USB1HS_PHY_DATA5);
omap_cfg_reg(W8_3430_USB1HS_PHY_DATA6);
omap_cfg_reg(Y13_3430_USB1HS_PHY_DATA7);
break;
case EHCI_HCD_OMAP_MODE_TLL:
omap_cfg_reg(Y9_3430_USB1HS_TLL_STP);
omap_cfg_reg(Y8_3430_USB1HS_TLL_CLK);
omap_cfg_reg(AA14_3430_USB1HS_TLL_DIR);
omap_cfg_reg(AA11_3430_USB1HS_TLL_NXT);
omap_cfg_reg(W13_3430_USB1HS_TLL_DATA0);
omap_cfg_reg(W12_3430_USB1HS_TLL_DATA1);
omap_cfg_reg(W11_3430_USB1HS_TLL_DATA2);
omap_cfg_reg(Y11_3430_USB1HS_TLL_DATA3);
omap_cfg_reg(W9_3430_USB1HS_TLL_DATA4);
omap_cfg_reg(Y12_3430_USB1HS_TLL_DATA5);
omap_cfg_reg(W8_3430_USB1HS_TLL_DATA6);
omap_cfg_reg(Y13_3430_USB1HS_TLL_DATA7);
break;
case EHCI_HCD_OMAP_MODE_UNKNOWN:
/* FALLTHROUGH */
default:
break;
}
switch (port_mode[1]) {
case EHCI_HCD_OMAP_MODE_PHY:
omap_cfg_reg(AA10_3430_USB2HS_PHY_STP);
omap_cfg_reg(AA8_3430_USB2HS_PHY_CLK);
omap_cfg_reg(AA9_3430_USB2HS_PHY_DIR);
omap_cfg_reg(AB11_3430_USB2HS_PHY_NXT);
omap_cfg_reg(AB10_3430_USB2HS_PHY_DATA0);
omap_cfg_reg(AB9_3430_USB2HS_PHY_DATA1);
omap_cfg_reg(W3_3430_USB2HS_PHY_DATA2);
omap_cfg_reg(T4_3430_USB2HS_PHY_DATA3);
omap_cfg_reg(T3_3430_USB2HS_PHY_DATA4);
omap_cfg_reg(R3_3430_USB2HS_PHY_DATA5);
omap_cfg_reg(R4_3430_USB2HS_PHY_DATA6);
omap_cfg_reg(T2_3430_USB2HS_PHY_DATA7);
break;
case EHCI_HCD_OMAP_MODE_TLL:
omap_cfg_reg(AA10_3430_USB2HS_TLL_STP);
omap_cfg_reg(AA8_3430_USB2HS_TLL_CLK);
omap_cfg_reg(AA9_3430_USB2HS_TLL_DIR);
omap_cfg_reg(AB11_3430_USB2HS_TLL_NXT);
omap_cfg_reg(AB10_3430_USB2HS_TLL_DATA0);
omap_cfg_reg(AB9_3430_USB2HS_TLL_DATA1);
omap_cfg_reg(W3_3430_USB2HS_TLL_DATA2);
omap_cfg_reg(T4_3430_USB2HS_TLL_DATA3);
omap_cfg_reg(T3_3430_USB2HS_TLL_DATA4);
omap_cfg_reg(R3_3430_USB2HS_TLL_DATA5);
omap_cfg_reg(R4_3430_USB2HS_TLL_DATA6);
omap_cfg_reg(T2_3430_USB2HS_TLL_DATA7);
break;
case EHCI_HCD_OMAP_MODE_UNKNOWN:
/* FALLTHROUGH */
default:
break;
}
switch (port_mode[2]) {
case EHCI_HCD_OMAP_MODE_PHY:
printk(KERN_WARNING "Port3 can't be used in PHY mode\n");
break;
case EHCI_HCD_OMAP_MODE_TLL:
omap_cfg_reg(AB3_3430_USB3HS_TLL_STP);
omap_cfg_reg(AA6_3430_USB3HS_TLL_CLK);
omap_cfg_reg(AA3_3430_USB3HS_TLL_DIR);
omap_cfg_reg(Y3_3430_USB3HS_TLL_NXT);
omap_cfg_reg(AA5_3430_USB3HS_TLL_DATA0);
omap_cfg_reg(Y4_3430_USB3HS_TLL_DATA1);
omap_cfg_reg(Y5_3430_USB3HS_TLL_DATA2);
omap_cfg_reg(W5_3430_USB3HS_TLL_DATA3);
omap_cfg_reg(AB12_3430_USB3HS_TLL_DATA4);
omap_cfg_reg(AB13_3430_USB3HS_TLL_DATA5);
omap_cfg_reg(AA13_3430_USB3HS_TLL_DATA6);
omap_cfg_reg(AA12_3430_USB3HS_TLL_DATA7);
break;
case EHCI_HCD_OMAP_MODE_UNKNOWN:
/* FALLTHROUGH */
default:
break;
}
return;
}
void __init usb_ehci_init(struct ehci_hcd_omap_platform_data *pdata)
{
platform_device_add_data(&ehci_device, pdata, sizeof(*pdata));
/* Setup Pin IO MUX for EHCI */
if (cpu_is_omap34xx())
setup_ehci_io_mux(pdata->port_mode);
if (platform_device_register(&ehci_device) < 0) {
printk(KERN_ERR "Unable to register HS-USB (EHCI) device\n");
return;
}
}
#else
void __init usb_ehci_init(struct ehci_hcd_omap_platform_data *pdata)
{
}
#endif /* CONFIG_USB_EHCI_HCD */
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