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Differential D25118 Diff 73079 sys/arm/ti/usb/omap_host.c

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sys/arm/ti/usb/omap_host.c

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#include <sys/rman.h> #include <sys/rman.h>
#include <sys/module.h> #include <sys/module.h>
#include <dev/fdt/simplebus.h> #include <dev/fdt/simplebus.h>
#include <dev/ofw/ofw_bus_subr.h> #include <dev/ofw/ofw_bus_subr.h>
#include <machine/bus.h> #include <machine/bus.h>
#include <arm/ti/ti_prcm.h> #include <arm/ti/ti_sysc.h>
#include <arm/ti/usb/omap_usb.h> #include <arm/ti/usb/omap_usb.h>
/* /*
* USB Host Module * USB Host Module
*/ */
/* UHH */ /* UHH */
#define OMAP_USBHOST_UHH_REVISION 0x0000 #define OMAP_USBHOST_UHH_REVISION 0x0000
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static int static int
omap_uhh_init(struct omap_uhh_softc *isc) omap_uhh_init(struct omap_uhh_softc *isc)
{ {
uint8_t tll_ch_mask; uint8_t tll_ch_mask;
uint32_t reg; uint32_t reg;
int i; int i;
/* Enable Clocks for high speed USBHOST */ /* Enable Clocks for high speed USBHOST */
ti_prcm_clk_enable(USBHSHOST_CLK); ti_sysc_clock_enable(device_get_parent(isc->sc_dev));
/* Read the UHH revision */ /* Read the UHH revision */
isc->uhh_rev = omap_uhh_read_4(isc, OMAP_USBHOST_UHH_REVISION); isc->uhh_rev = omap_uhh_read_4(isc, OMAP_USBHOST_UHH_REVISION);
device_printf(isc->sc_dev, "UHH revision 0x%08x\n", isc->uhh_rev); device_printf(isc->sc_dev, "UHH revision 0x%08x\n", isc->uhh_rev);
/* FIXME */
#if 0
if (isc->uhh_rev == OMAP_UHH_REV2) { if (isc->uhh_rev == OMAP_UHH_REV2) {
/* For OMAP44xx devices you have to enable the per-port clocks: /* For OMAP44xx devices you have to enable the per-port clocks:
* PHY_MODE - External ULPI clock * PHY_MODE - External ULPI clock
* TTL_MODE - Internal UTMI clock * TTL_MODE - Internal UTMI clock
* HSIC_MODE - Internal 480Mhz and 60Mhz clocks * HSIC_MODE - Internal 480Mhz and 60Mhz clocks
*/ */
switch(isc->port_mode[0]) { switch(isc->port_mode[0]) {
case EHCI_HCD_OMAP_MODE_UNKNOWN: case EHCI_HCD_OMAP_MODE_UNKNOWN:
Show All 39 Lines case EHCI_HCD_OMAP_MODE_HSIC:
if (ti_prcm_clk_enable(USBP2_HSIC_CLK)) if (ti_prcm_clk_enable(USBP2_HSIC_CLK))
device_printf(isc->sc_dev, device_printf(isc->sc_dev,
"failed to set clock USBP2_HSIC_CLK source for port 1\n"); "failed to set clock USBP2_HSIC_CLK source for port 1\n");
break; break;
default: default:
device_printf(isc->sc_dev, "unknown port mode %d for port 1\n", isc->port_mode[1]); device_printf(isc->sc_dev, "unknown port mode %d for port 1\n", isc->port_mode[1]);
} }
} }
#endif
/* Put UHH in SmartIdle/SmartStandby mode */ /* Put UHH in SmartIdle/SmartStandby mode */
reg = omap_uhh_read_4(isc, OMAP_USBHOST_UHH_SYSCONFIG); reg = omap_uhh_read_4(isc, OMAP_USBHOST_UHH_SYSCONFIG);
if (isc->uhh_rev == OMAP_UHH_REV1) { if (isc->uhh_rev == OMAP_UHH_REV1) {
reg &= ~(UHH_SYSCONFIG_SIDLEMODE_MASK | reg &= ~(UHH_SYSCONFIG_SIDLEMODE_MASK |
UHH_SYSCONFIG_MIDLEMODE_MASK); UHH_SYSCONFIG_MIDLEMODE_MASK);
reg |= (UHH_SYSCONFIG_ENAWAKEUP | reg |= (UHH_SYSCONFIG_ENAWAKEUP |
UHH_SYSCONFIG_AUTOIDLE | UHH_SYSCONFIG_AUTOIDLE |
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if (timeout-- == 0) { if (timeout-- == 0) {
device_printf(isc->sc_dev, "operation timed out\n"); device_printf(isc->sc_dev, "operation timed out\n");
break; break;
} }
} }
/* Disable functional and interface clocks for the TLL and HOST modules */ /* Disable functional and interface clocks for the TLL and HOST modules */
ti_prcm_clk_disable(USBHSHOST_CLK); ti_sysc_clock_disable(device_get_parent(isc->sc_dev));
device_printf(isc->sc_dev, "Clock to USB host has been disabled\n"); device_printf(isc->sc_dev, "Clock to USB host has been disabled\n");
} }
int int
omap_usb_port_mode(device_t dev, int port) omap_usb_port_mode(device_t dev, int port)
{ {
struct omap_uhh_softc *isc; struct omap_uhh_softc *isc;
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