df7675353e
Sponsored by: ABT Systems Ltd
364 lines
12 KiB
C
364 lines
12 KiB
C
/*-
|
|
* Copyright (c) 2011
|
|
* Ben Gray <ben.r.gray@gmail.com>.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/module.h>
|
|
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
#include <machine/bus.h>
|
|
|
|
#include <arm/ti/ti_prcm.h>
|
|
#include <arm/ti/usb/omap_usb.h>
|
|
|
|
/*
|
|
* USB TLL Module
|
|
*/
|
|
#define OMAP_USBTLL_REVISION 0x0000
|
|
#define OMAP_USBTLL_SYSCONFIG 0x0010
|
|
#define OMAP_USBTLL_SYSSTATUS 0x0014
|
|
#define OMAP_USBTLL_IRQSTATUS 0x0018
|
|
#define OMAP_USBTLL_IRQENABLE 0x001C
|
|
#define OMAP_USBTLL_TLL_SHARED_CONF 0x0030
|
|
#define OMAP_USBTLL_TLL_CHANNEL_CONF(i) (0x0040 + (0x04 * (i)))
|
|
#define OMAP_USBTLL_SAR_CNTX(i) (0x0400 + (0x04 * (i)))
|
|
#define OMAP_USBTLL_ULPI_VENDOR_ID_LO(i) (0x0800 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_VENDOR_ID_HI(i) (0x0801 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_PRODUCT_ID_LO(i) (0x0802 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_PRODUCT_ID_HI(i) (0x0803 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_FUNCTION_CTRL(i) (0x0804 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_FUNCTION_CTRL_SET(i) (0x0805 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_FUNCTION_CTRL_CLR(i) (0x0806 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_INTERFACE_CTRL(i) (0x0807 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_INTERFACE_CTRL_SET(i) (0x0808 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_INTERFACE_CTRL_CLR(i) (0x0809 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_OTG_CTRL(i) (0x080A + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_OTG_CTRL_SET(i) (0x080B + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_OTG_CTRL_CLR(i) (0x080C + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_USB_INT_EN_RISE(i) (0x080D + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_USB_INT_EN_RISE_SET(i) (0x080E + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_USB_INT_EN_RISE_CLR(i) (0x080F + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_USB_INT_EN_FALL(i) (0x0810 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_USB_INT_EN_FALL_SET(i) (0x0811 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_USB_INT_EN_FALL_CLR(i) (0x0812 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_USB_INT_STATUS(i) (0x0813 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_USB_INT_LATCH(i) (0x0814 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_DEBUG(i) (0x0815 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_SCRATCH_REGISTER(i) (0x0816 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_SCRATCH_REGISTER_SET(i) (0x0817 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_SCRATCH_REGISTER_CLR(i) (0x0818 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_EXTENDED_SET_ACCESS(i) (0x082F + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_UTMI_VCONTROL_EN(i) (0x0830 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_UTMI_VCONTROL_EN_SET(i) (0x0831 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_UTMI_VCONTROL_EN_CLR(i) (0x0832 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_UTMI_VCONTROL_STATUS(i) (0x0833 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_UTMI_VCONTROL_LATCH(i) (0x0834 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_UTMI_VSTATUS(i) (0x0835 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_UTMI_VSTATUS_SET(i) (0x0836 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_UTMI_VSTATUS_CLR(i) (0x0837 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_USB_INT_LATCH_NOCLR(i) (0x0838 + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_VENDOR_INT_EN(i) (0x083B + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_VENDOR_INT_EN_SET(i) (0x083C + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_VENDOR_INT_EN_CLR(i) (0x083D + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_VENDOR_INT_STATUS(i) (0x083E + (0x100 * (i)))
|
|
#define OMAP_USBTLL_ULPI_VENDOR_INT_LATCH(i) (0x083F + (0x100 * (i)))
|
|
|
|
/* TLL Register Set */
|
|
#define TLL_SYSCONFIG_CACTIVITY (1UL << 8)
|
|
#define TLL_SYSCONFIG_SIDLE_SMART_IDLE (2UL << 3)
|
|
#define TLL_SYSCONFIG_SIDLE_NO_IDLE (1UL << 3)
|
|
#define TLL_SYSCONFIG_SIDLE_FORCED_IDLE (0UL << 3)
|
|
#define TLL_SYSCONFIG_ENAWAKEUP (1UL << 2)
|
|
#define TLL_SYSCONFIG_SOFTRESET (1UL << 1)
|
|
#define TLL_SYSCONFIG_AUTOIDLE (1UL << 0)
|
|
|
|
#define TLL_SYSSTATUS_RESETDONE (1UL << 0)
|
|
|
|
#define TLL_SHARED_CONF_USB_90D_DDR_EN (1UL << 6)
|
|
#define TLL_SHARED_CONF_USB_180D_SDR_EN (1UL << 5)
|
|
#define TLL_SHARED_CONF_USB_DIVRATIO_MASK (7UL << 2)
|
|
#define TLL_SHARED_CONF_USB_DIVRATIO_128 (7UL << 2)
|
|
#define TLL_SHARED_CONF_USB_DIVRATIO_64 (6UL << 2)
|
|
#define TLL_SHARED_CONF_USB_DIVRATIO_32 (5UL << 2)
|
|
#define TLL_SHARED_CONF_USB_DIVRATIO_16 (4UL << 2)
|
|
#define TLL_SHARED_CONF_USB_DIVRATIO_8 (3UL << 2)
|
|
#define TLL_SHARED_CONF_USB_DIVRATIO_4 (2UL << 2)
|
|
#define TLL_SHARED_CONF_USB_DIVRATIO_2 (1UL << 2)
|
|
#define TLL_SHARED_CONF_USB_DIVRATIO_1 (0UL << 2)
|
|
#define TLL_SHARED_CONF_FCLK_REQ (1UL << 1)
|
|
#define TLL_SHARED_CONF_FCLK_IS_ON (1UL << 0)
|
|
|
|
#define TLL_CHANNEL_CONF_DRVVBUS (1UL << 16)
|
|
#define TLL_CHANNEL_CONF_CHRGVBUS (1UL << 15)
|
|
#define TLL_CHANNEL_CONF_ULPINOBITSTUFF (1UL << 11)
|
|
#define TLL_CHANNEL_CONF_ULPIAUTOIDLE (1UL << 10)
|
|
#define TLL_CHANNEL_CONF_UTMIAUTOIDLE (1UL << 9)
|
|
#define TLL_CHANNEL_CONF_ULPIDDRMODE (1UL << 8)
|
|
#define TLL_CHANNEL_CONF_ULPIOUTCLKMODE (1UL << 7)
|
|
#define TLL_CHANNEL_CONF_TLLFULLSPEED (1UL << 6)
|
|
#define TLL_CHANNEL_CONF_TLLCONNECT (1UL << 5)
|
|
#define TLL_CHANNEL_CONF_TLLATTACH (1UL << 4)
|
|
#define TLL_CHANNEL_CONF_UTMIISADEV (1UL << 3)
|
|
#define TLL_CHANNEL_CONF_CHANEN (1UL << 0)
|
|
|
|
struct omap_tll_softc {
|
|
device_t sc_dev;
|
|
|
|
/* TLL register set */
|
|
struct resource* tll_mem_res;
|
|
int tll_mem_rid;
|
|
};
|
|
|
|
static struct omap_tll_softc *omap_tll_sc;
|
|
|
|
static int omap_tll_attach(device_t dev);
|
|
static int omap_tll_detach(device_t dev);
|
|
|
|
static inline uint32_t
|
|
omap_tll_read_4(struct omap_tll_softc *sc, bus_size_t off)
|
|
{
|
|
return bus_read_4(sc->tll_mem_res, off);
|
|
}
|
|
|
|
static inline void
|
|
omap_tll_write_4(struct omap_tll_softc *sc, bus_size_t off, uint32_t val)
|
|
{
|
|
bus_write_4(sc->tll_mem_res, off, val);
|
|
}
|
|
|
|
void
|
|
omap_tll_utmi_enable(unsigned int en_mask)
|
|
{
|
|
struct omap_tll_softc *sc;
|
|
unsigned int i;
|
|
uint32_t reg;
|
|
|
|
sc = omap_tll_sc;
|
|
if (sc == NULL)
|
|
return;
|
|
|
|
/* There are 3 TLL channels, one per USB controller so set them all up the
|
|
* same, SDR mode, bit stuffing and no autoidle.
|
|
*/
|
|
for (i=0; i<3; i++) {
|
|
reg = omap_tll_read_4(sc, OMAP_USBTLL_TLL_CHANNEL_CONF(i));
|
|
|
|
reg &= ~(TLL_CHANNEL_CONF_UTMIAUTOIDLE
|
|
| TLL_CHANNEL_CONF_ULPINOBITSTUFF
|
|
| TLL_CHANNEL_CONF_ULPIDDRMODE);
|
|
|
|
omap_tll_write_4(sc, OMAP_USBTLL_TLL_CHANNEL_CONF(i), reg);
|
|
}
|
|
|
|
/* Program the common TLL register */
|
|
reg = omap_tll_read_4(sc, OMAP_USBTLL_TLL_SHARED_CONF);
|
|
|
|
reg &= ~( TLL_SHARED_CONF_USB_90D_DDR_EN
|
|
| TLL_SHARED_CONF_USB_DIVRATIO_MASK);
|
|
reg |= ( TLL_SHARED_CONF_FCLK_IS_ON
|
|
| TLL_SHARED_CONF_USB_DIVRATIO_2
|
|
| TLL_SHARED_CONF_USB_180D_SDR_EN);
|
|
|
|
omap_tll_write_4(sc, OMAP_USBTLL_TLL_SHARED_CONF, reg);
|
|
|
|
/* Enable channels now */
|
|
for (i = 0; i < 3; i++) {
|
|
reg = omap_tll_read_4(sc, OMAP_USBTLL_TLL_CHANNEL_CONF(i));
|
|
|
|
/* Enable only the reg that is needed */
|
|
if ((en_mask & (1 << i)) == 0)
|
|
continue;
|
|
|
|
reg |= TLL_CHANNEL_CONF_CHANEN;
|
|
omap_tll_write_4(sc, OMAP_USBTLL_TLL_CHANNEL_CONF(i), reg);
|
|
}
|
|
}
|
|
|
|
static int
|
|
omap_tll_init(struct omap_tll_softc *sc)
|
|
{
|
|
unsigned long timeout;
|
|
int ret = 0;
|
|
|
|
/* Enable the USB TLL */
|
|
ti_prcm_clk_enable(USBTLL_CLK);
|
|
|
|
/* Perform TLL soft reset, and wait until reset is complete */
|
|
omap_tll_write_4(sc, OMAP_USBTLL_SYSCONFIG, TLL_SYSCONFIG_SOFTRESET);
|
|
|
|
/* Set the timeout to 100ms*/
|
|
timeout = (hz < 10) ? 1 : ((100 * hz) / 1000);
|
|
|
|
/* Wait for TLL reset to complete */
|
|
while ((omap_tll_read_4(sc, OMAP_USBTLL_SYSSTATUS) &
|
|
TLL_SYSSTATUS_RESETDONE) == 0x00) {
|
|
|
|
/* Sleep for a tick */
|
|
pause("USBRESET", 1);
|
|
|
|
if (timeout-- == 0) {
|
|
device_printf(sc->sc_dev, "TLL reset operation timed out\n");
|
|
ret = EINVAL;
|
|
goto err_sys_status;
|
|
}
|
|
}
|
|
|
|
/* CLOCKACTIVITY = 1 : OCP-derived internal clocks ON during idle
|
|
* SIDLEMODE = 2 : Smart-idle mode. Sidleack asserted after Idlereq
|
|
* assertion when no more activity on the USB.
|
|
* ENAWAKEUP = 1 : Wakeup generation enabled
|
|
*/
|
|
omap_tll_write_4(sc, OMAP_USBTLL_SYSCONFIG, TLL_SYSCONFIG_ENAWAKEUP |
|
|
TLL_SYSCONFIG_AUTOIDLE |
|
|
TLL_SYSCONFIG_SIDLE_SMART_IDLE |
|
|
TLL_SYSCONFIG_CACTIVITY);
|
|
|
|
return(0);
|
|
|
|
err_sys_status:
|
|
/* Disable the TLL clocks */
|
|
ti_prcm_clk_disable(USBTLL_CLK);
|
|
|
|
return(ret);
|
|
}
|
|
|
|
static void
|
|
omap_tll_disable(struct omap_tll_softc *sc)
|
|
{
|
|
unsigned long timeout;
|
|
|
|
timeout = (hz < 10) ? 1 : ((100 * hz) / 1000);
|
|
|
|
/* Reset the TLL module */
|
|
omap_tll_write_4(sc, OMAP_USBTLL_SYSCONFIG, 0x0002);
|
|
while ((omap_tll_read_4(sc, OMAP_USBTLL_SYSSTATUS) & (0x01)) == 0x00) {
|
|
/* Sleep for a tick */
|
|
pause("USBRESET", 1);
|
|
|
|
if (timeout-- == 0) {
|
|
device_printf(sc->sc_dev, "operation timed out\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Disable functional and interface clocks for the TLL and HOST modules */
|
|
ti_prcm_clk_disable(USBTLL_CLK);
|
|
}
|
|
|
|
static int
|
|
omap_tll_probe(device_t dev)
|
|
{
|
|
|
|
if (!ofw_bus_status_okay(dev))
|
|
return (ENXIO);
|
|
|
|
if (!ofw_bus_is_compatible(dev, "ti,usbhs-tll"))
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "TI OMAP USB 2.0 TLL module");
|
|
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
omap_tll_attach(device_t dev)
|
|
{
|
|
struct omap_tll_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
/* save the device */
|
|
sc->sc_dev = dev;
|
|
|
|
/* Allocate resource for the TLL register set */
|
|
sc->tll_mem_rid = 0;
|
|
sc->tll_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
|
|
&sc->tll_mem_rid, RF_ACTIVE);
|
|
if (!sc->tll_mem_res) {
|
|
device_printf(dev, "Error: Could not map TLL memory\n");
|
|
goto error;
|
|
}
|
|
|
|
omap_tll_init(sc);
|
|
|
|
omap_tll_sc = sc;
|
|
|
|
return (0);
|
|
|
|
error:
|
|
omap_tll_detach(dev);
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
omap_tll_detach(device_t dev)
|
|
{
|
|
struct omap_tll_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
omap_tll_disable(sc);
|
|
|
|
/* Release the other register set memory maps */
|
|
if (sc->tll_mem_res) {
|
|
bus_release_resource(dev, SYS_RES_MEMORY,
|
|
sc->tll_mem_rid, sc->tll_mem_res);
|
|
sc->tll_mem_res = NULL;
|
|
}
|
|
|
|
omap_tll_sc = NULL;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t omap_tll_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, omap_tll_probe),
|
|
DEVMETHOD(device_attach, omap_tll_attach),
|
|
DEVMETHOD(device_detach, omap_tll_detach),
|
|
DEVMETHOD(device_suspend, bus_generic_suspend),
|
|
DEVMETHOD(device_resume, bus_generic_resume),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
|
|
{0, 0}
|
|
};
|
|
|
|
static driver_t omap_tll_driver = {
|
|
"omap_tll",
|
|
omap_tll_methods,
|
|
sizeof(struct omap_tll_softc),
|
|
};
|
|
|
|
static devclass_t omap_tll_devclass;
|
|
|
|
DRIVER_MODULE(omap_tll, simplebus, omap_tll_driver, omap_tll_devclass, 0, 0);
|