static void usbhs_omap_tll_init(struct device *dev, u8 tll_channel_count)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = dev->platform_data;
unsigned reg;
int i;
/* Program Common TLL register */
reg = usbhs_read(omap->tll_base, OMAP_TLL_SHARED_CONF);
reg |= (OMAP_TLL_SHARED_CONF_FCLK_IS_ON
| OMAP_TLL_SHARED_CONF_USB_DIVRATION);
reg &= ~OMAP_TLL_SHARED_CONF_USB_90D_DDR_EN;
reg &= ~OMAP_TLL_SHARED_CONF_USB_180D_SDR_EN;
usbhs_write(omap->tll_base, OMAP_TLL_SHARED_CONF, reg);
/* Enable channels now */
for (i = 0; i < tll_channel_count; i++) {
reg = usbhs_read(omap->tll_base,
OMAP_TLL_CHANNEL_CONF(i));
if (is_ohci_port(pdata->port_mode[i])) {
reg |= ohci_omap3_fslsmode(pdata->port_mode[i])
<< OMAP_TLL_CHANNEL_CONF_FSLSMODE_SHIFT;
reg |= OMAP_TLL_CHANNEL_CONF_CHANMODE_FSLS;
} else if (pdata->port_mode[i] == OMAP_EHCI_PORT_MODE_TLL) {
/* Disable AutoIdle, BitStuffing and use SDR Mode */
reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE
| OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF
| OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE);
reg |= (1 << (i + 1));
} else
continue;
reg |= OMAP_TLL_CHANNEL_CONF_CHANEN;
usbhs_write(omap->tll_base,
OMAP_TLL_CHANNEL_CONF(i), reg);
usbhs_writeb(omap->tll_base,
OMAP_TLL_ULPI_SCRATCH_REGISTER(i), 0xbe);
}
}
static unsigned omap_usbhs_rev2_hostconfig(struct usbhs_hcd_omap *omap,
unsigned reg)
{
struct usbhs_omap_platform_data *pdata = omap->pdata;
int i;
for (i = 0; i < omap->nports; i++) {
/* Clear port mode fields for PHY mode */
reg &= ~(OMAP4_P1_MODE_CLEAR << 2 * i);
if (is_ehci_tll_mode(pdata->port_mode[i]) ||
(is_ohci_port(pdata->port_mode[i])))
reg |= OMAP4_P1_MODE_TLL << 2 * i;
else if (is_ehci_hsic_mode(pdata->port_mode[i]))
reg |= OMAP4_P1_MODE_HSIC << 2 * i;
}
return reg;
}
static void omap_usbhs_init(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = &omap->platdata;
unsigned long flags;
unsigned reg;
dev_dbg(dev, "starting TI HSUSB Controller\n");
pm_runtime_get_sync(dev);
if (pdata->ehci_data->phy_reset) {
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
gpio_request_one(pdata->ehci_data->reset_gpio_port[0],
GPIOF_OUT_INIT_LOW, "USB1 PHY reset");
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
gpio_request_one(pdata->ehci_data->reset_gpio_port[1],
GPIOF_OUT_INIT_LOW, "USB2 PHY reset");
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[2]))
gpio_request_one(pdata->ehci_data->reset_gpio_port[2],
GPIOF_OUT_INIT_LOW, "USB2 PHY reset");
/* Hold the PHY in RESET for enough time till DIR is high */
udelay(10);
}
spin_lock_irqsave(&omap->lock, flags);
omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION);
dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev);
reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
/* setup ULPI bypass and burst configurations */
reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
| OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
| OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN);
reg |= OMAP4_UHH_HOSTCONFIG_APP_START_CLK;
reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
if (is_omap_usbhs_rev1(omap)) {
if (pdata->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
if (pdata->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
if (pdata->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
/* Bypass the TLL module for PHY mode operation */
if (cpu_is_omap3430() && (omap_rev() <= OMAP3430_REV_ES2_1)) {
dev_dbg(dev, "OMAP3 ES version <= ES2.1\n");
if (is_ehci_phy_mode(pdata->port_mode[0]) ||
is_ehci_phy_mode(pdata->port_mode[1]) ||
is_ehci_phy_mode(pdata->port_mode[2]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
} else {
dev_dbg(dev, "OMAP3 ES version > ES2.1\n");
if (is_ehci_phy_mode(pdata->port_mode[0]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
if (is_ehci_phy_mode(pdata->port_mode[1]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
if (is_ehci_phy_mode(pdata->port_mode[2]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
}
} else if (is_omap_usbhs_rev2(omap)) {
/* Clear port mode fields for PHY mode*/
reg &= ~OMAP4_P1_MODE_CLEAR;
reg &= ~OMAP4_P2_MODE_CLEAR;
if (is_ehci_tll_mode(pdata->port_mode[0]) ||
(is_ohci_port(pdata->port_mode[0])))
reg |= OMAP4_P1_MODE_TLL;
else if (is_ehci_hsic_mode(pdata->port_mode[0]))
reg |= OMAP4_P1_MODE_HSIC;
if (is_ehci_tll_mode(pdata->port_mode[1]) ||
(is_ohci_port(pdata->port_mode[1])))
reg |= OMAP4_P2_MODE_TLL;
else if (is_ehci_hsic_mode(pdata->port_mode[1]))
reg |= OMAP4_P2_MODE_HSIC;
if (is_ehci_hsic_mode(pdata->port_mode[2]))
reg |= OMAP5_P3_MODE_HSIC;
}
usbhs_write(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
dev_dbg(dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
spin_unlock_irqrestore(&omap->lock, flags);
if (pdata->ehci_data->phy_reset) {
/* Hold the PHY in RESET for enough time till
* PHY is settled and ready
*/
udelay(10);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
gpio_set_value(pdata->ehci_data->reset_gpio_port[0], 1);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
gpio_set_value(pdata->ehci_data->reset_gpio_port[1], 1);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[2]))
gpio_set_value(pdata->ehci_data->reset_gpio_port[2], 1);
}
pm_runtime_put_sync(dev);
}
static void omap_usbhs_init(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = &omap->platdata;
unsigned long flags;
unsigned reg;
dev_dbg(dev, "starting TI HSUSB Controller\n");
pm_runtime_get_sync(dev);
spin_lock_irqsave(&omap->lock, flags);
omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION);
dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev);
reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
/* setup ULPI bypass and burst configurations */
reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
| OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
| OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN);
reg |= OMAP4_UHH_HOSTCONFIG_APP_START_CLK;
reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
if (is_omap_usbhs_rev1(omap)) {
if (pdata->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
if (pdata->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
if (pdata->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
/* Bypass the TLL module for PHY mode operation */
if (cpu_is_omap3430() && (omap_rev() <= OMAP3430_REV_ES2_1)) {
dev_dbg(dev, "OMAP3 ES version <= ES2.1\n");
if (is_ehci_phy_mode(pdata->port_mode[0]) ||
is_ehci_phy_mode(pdata->port_mode[1]) ||
is_ehci_phy_mode(pdata->port_mode[2]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
} else {
dev_dbg(dev, "OMAP3 ES version > ES2.1\n");
if (is_ehci_phy_mode(pdata->port_mode[0]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
if (is_ehci_phy_mode(pdata->port_mode[1]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
if (is_ehci_phy_mode(pdata->port_mode[2]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
}
} else if (is_omap_usbhs_rev2(omap)) {
/* Clear port mode fields for PHY mode*/
reg &= ~OMAP4_P1_MODE_CLEAR;
reg &= ~OMAP4_P2_MODE_CLEAR;
if (is_ehci_tll_mode(pdata->port_mode[0]) ||
(is_ohci_port(pdata->port_mode[0])))
reg |= OMAP4_P1_MODE_TLL;
else if (is_ehci_hsic_mode(pdata->port_mode[0]))
reg |= OMAP4_P1_MODE_HSIC;
if (is_ehci_tll_mode(pdata->port_mode[1]) ||
(is_ohci_port(pdata->port_mode[1])))
reg |= OMAP4_P2_MODE_TLL;
else if (is_ehci_hsic_mode(pdata->port_mode[1]))
reg |= OMAP4_P2_MODE_HSIC;
}
usbhs_write(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
dev_dbg(dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
if (is_ehci_tll_mode(pdata->port_mode[0]) ||
is_ehci_tll_mode(pdata->port_mode[1]) ||
is_ehci_tll_mode(pdata->port_mode[2]) ||
(is_ohci_port(pdata->port_mode[0])) ||
(is_ohci_port(pdata->port_mode[1])) ||
(is_ohci_port(pdata->port_mode[2]))) {
/* Enable UTMI mode for required TLL channels */
if (is_omap_usbhs_rev2(omap))
usbhs_omap_tll_init(dev, OMAP_REV2_TLL_CHANNEL_COUNT);
else
usbhs_omap_tll_init(dev, OMAP_TLL_CHANNEL_COUNT);
}
spin_unlock_irqrestore(&omap->lock, flags);
pm_runtime_put_sync(dev);
}
static int usbhs_enable(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = &omap->platdata;
unsigned long flags = 0;
int ret = 0;
unsigned reg;
dev_dbg(dev, "starting TI HSUSB Controller\n");
if (!pdata) {
dev_dbg(dev, "missing platform_data\n");
return -ENODEV;
}
spin_lock_irqsave(&omap->lock, flags);
if (omap->count > 0)
goto end_count;
pm_runtime_get_sync(dev);
if (pdata->ehci_data->phy_reset) {
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) {
gpio_request(pdata->ehci_data->reset_gpio_port[0],
"USB1 PHY reset");
gpio_direction_output
(pdata->ehci_data->reset_gpio_port[0], 0);
}
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) {
gpio_request(pdata->ehci_data->reset_gpio_port[1],
"USB2 PHY reset");
gpio_direction_output
(pdata->ehci_data->reset_gpio_port[1], 0);
}
/* Hold the PHY in RESET for enough time till DIR is high */
udelay(10);
}
omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION);
dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev);
reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
/* setup ULPI bypass and burst configurations */
reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
| OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
| OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN);
reg |= OMAP4_UHH_HOSTCONFIG_APP_START_CLK;
reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
if (is_omap_usbhs_rev1(omap)) {
if (pdata->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
if (pdata->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
if (pdata->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
/* Bypass the TLL module for PHY mode operation */
if (cpu_is_omap3430() && (omap_rev() <= OMAP3430_REV_ES2_1)) {
dev_dbg(dev, "OMAP3 ES version <= ES2.1\n");
if (is_ehci_phy_mode(pdata->port_mode[0]) ||
is_ehci_phy_mode(pdata->port_mode[1]) ||
is_ehci_phy_mode(pdata->port_mode[2]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
} else {
dev_dbg(dev, "OMAP3 ES version > ES2.1\n");
if (is_ehci_phy_mode(pdata->port_mode[0]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
if (is_ehci_phy_mode(pdata->port_mode[1]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
if (is_ehci_phy_mode(pdata->port_mode[2]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
}
} else if (is_omap_usbhs_rev2(omap)) {
/* Clear port mode fields for PHY mode*/
reg &= ~OMAP4_P1_MODE_CLEAR;
reg &= ~OMAP4_P2_MODE_CLEAR;
if (is_ehci_phy_mode(pdata->port_mode[0])) {
ret = clk_set_parent(omap->utmi_p1_fck,
omap->xclk60mhsp1_ck);
if (ret != 0) {
dev_err(dev, "xclk60mhsp1_ck set parent"
"failed error:%d\n", ret);
goto err_tll;
}
} else if (is_ehci_tll_mode(pdata->port_mode[0])) {
ret = clk_set_parent(omap->utmi_p1_fck,
omap->init_60m_fclk);
if (ret != 0) {
dev_err(dev, "init_60m_fclk set parent"
"failed error:%d\n", ret);
goto err_tll;
}
clk_enable(omap->usbhost_p1_fck);
clk_enable(omap->usbtll_p1_fck);
}
if (is_ehci_phy_mode(pdata->port_mode[1])) {
ret = clk_set_parent(omap->utmi_p2_fck,
omap->xclk60mhsp2_ck);
if (ret != 0) {
dev_err(dev, "xclk60mhsp1_ck set parent"
"failed error:%d\n", ret);
goto err_tll;
}
} else if (is_ehci_tll_mode(pdata->port_mode[1])) {
ret = clk_set_parent(omap->utmi_p2_fck,
omap->init_60m_fclk);
if (ret != 0) {
dev_err(dev, "init_60m_fclk set parent"
"failed error:%d\n", ret);
goto err_tll;
}
clk_enable(omap->usbhost_p2_fck);
clk_enable(omap->usbtll_p2_fck);
}
clk_enable(omap->utmi_p1_fck);
clk_enable(omap->utmi_p2_fck);
if (is_ehci_tll_mode(pdata->port_mode[0]) ||
(is_ohci_port(pdata->port_mode[0])))
reg |= OMAP4_P1_MODE_TLL;
else if (is_ehci_hsic_mode(pdata->port_mode[0]))
reg |= OMAP4_P1_MODE_HSIC;
if (is_ehci_tll_mode(pdata->port_mode[1]) ||
(is_ohci_port(pdata->port_mode[1])))
reg |= OMAP4_P2_MODE_TLL;
else if (is_ehci_hsic_mode(pdata->port_mode[1]))
reg |= OMAP4_P2_MODE_HSIC;
}
usbhs_write(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
dev_dbg(dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
if (is_ehci_tll_mode(pdata->port_mode[0]) ||
is_ehci_tll_mode(pdata->port_mode[1]) ||
is_ehci_tll_mode(pdata->port_mode[2]) ||
(is_ohci_port(pdata->port_mode[0])) ||
(is_ohci_port(pdata->port_mode[1])) ||
(is_ohci_port(pdata->port_mode[2]))) {
/* Enable UTMI mode for required TLL channels */
if (is_omap_usbhs_rev2(omap))
usbhs_omap_tll_init(dev, OMAP_REV2_TLL_CHANNEL_COUNT);
else
usbhs_omap_tll_init(dev, OMAP_TLL_CHANNEL_COUNT);
}
if (pdata->ehci_data->phy_reset) {
/* Hold the PHY in RESET for enough time till
* PHY is settled and ready
*/
udelay(10);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
gpio_set_value
(pdata->ehci_data->reset_gpio_port[0], 1);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
gpio_set_value
(pdata->ehci_data->reset_gpio_port[1], 1);
}
end_count:
omap->count++;
spin_unlock_irqrestore(&omap->lock, flags);
return 0;
err_tll:
pm_runtime_put_sync(dev);
spin_unlock_irqrestore(&omap->lock, flags);
if (pdata->ehci_data->phy_reset) {
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
gpio_free(pdata->ehci_data->reset_gpio_port[0]);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
gpio_free(pdata->ehci_data->reset_gpio_port[1]);
}
return ret;
}
static int usbhs_enable(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = &omap->platdata;
unsigned long flags = 0;
int ret = 0;
unsigned long timeout;
unsigned reg;
dev_dbg(dev, "starting TI HSUSB Controller\n");
if (!pdata) {
dev_dbg(dev, "missing platform_data\n");
return -ENODEV;
}
spin_lock_irqsave(&omap->lock, flags);
if (omap->count > 0)
goto end_count;
clk_enable(omap->usbhost_ick);
clk_enable(omap->usbhost_hs_fck);
clk_enable(omap->usbhost_fs_fck);
clk_enable(omap->usbtll_fck);
clk_enable(omap->usbtll_ick);
if (pdata->ehci_data->phy_reset) {
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) {
gpio_request(pdata->ehci_data->reset_gpio_port[0],
"USB1 PHY reset");
gpio_direction_output
(pdata->ehci_data->reset_gpio_port[0], 0);
}
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) {
gpio_request(pdata->ehci_data->reset_gpio_port[1],
"USB2 PHY reset");
gpio_direction_output
(pdata->ehci_data->reset_gpio_port[1], 0);
}
/* Hold the PHY in RESET for enough time till DIR is high */
udelay(10);
}
omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION);
dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev);
/* perform TLL soft reset, and wait until reset is complete */
usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
OMAP_USBTLL_SYSCONFIG_SOFTRESET);
/* Wait for TLL reset to complete */
timeout = jiffies + msecs_to_jiffies(1000);
while (!(usbhs_read(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
& OMAP_USBTLL_SYSSTATUS_RESETDONE)) {
cpu_relax();
if (time_after(jiffies, timeout)) {
dev_dbg(dev, "operation timed out\n");
ret = -EINVAL;
goto err_tll;
}
}
dev_dbg(dev, "TLL RESET DONE\n");
/* (1<<3) = no idle mode only for initial debugging */
usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
OMAP_USBTLL_SYSCONFIG_AUTOIDLE);
/* Put UHH in NoIdle/NoStandby mode */
reg = usbhs_read(omap->uhh_base, OMAP_UHH_SYSCONFIG);
if (is_omap_usbhs_rev1(omap)) {
reg |= (OMAP_UHH_SYSCONFIG_ENAWAKEUP
| OMAP_UHH_SYSCONFIG_SIDLEMODE
| OMAP_UHH_SYSCONFIG_CACTIVITY
| OMAP_UHH_SYSCONFIG_MIDLEMODE);
reg &= ~OMAP_UHH_SYSCONFIG_AUTOIDLE;
} else if (is_omap_usbhs_rev2(omap)) {
reg &= ~OMAP4_UHH_SYSCONFIG_IDLEMODE_CLEAR;
reg |= OMAP4_UHH_SYSCONFIG_NOIDLE;
reg &= ~OMAP4_UHH_SYSCONFIG_STDBYMODE_CLEAR;
reg |= OMAP4_UHH_SYSCONFIG_NOSTDBY;
}
usbhs_write(omap->uhh_base, OMAP_UHH_SYSCONFIG, reg);
reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
/* setup ULPI bypass and burst configurations */
reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
| OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
| OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN);
reg |= OMAP4_UHH_HOSTCONFIG_APP_START_CLK;
reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
if (is_omap_usbhs_rev1(omap)) {
if (pdata->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
if (pdata->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
if (pdata->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
/* Bypass the TLL module for PHY mode operation */
if (cpu_is_omap3430() && (omap_rev() <= OMAP3430_REV_ES2_1)) {
dev_dbg(dev, "OMAP3 ES version <= ES2.1\n");
if (is_ehci_phy_mode(pdata->port_mode[0]) ||
is_ehci_phy_mode(pdata->port_mode[1]) ||
is_ehci_phy_mode(pdata->port_mode[2]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
} else {
dev_dbg(dev, "OMAP3 ES version > ES2.1\n");
if (is_ehci_phy_mode(pdata->port_mode[0]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
if (is_ehci_phy_mode(pdata->port_mode[1]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
if (is_ehci_phy_mode(pdata->port_mode[2]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
}
} else if (is_omap_usbhs_rev2(omap)) {
/* Clear port mode fields for PHY mode*/
reg &= ~OMAP4_P1_MODE_CLEAR;
reg &= ~OMAP4_P2_MODE_CLEAR;
if (is_ehci_phy_mode(pdata->port_mode[0])) {
ret = clk_set_parent(omap->utmi_p1_fck,
omap->xclk60mhsp1_ck);
if (ret != 0) {
dev_err(dev, "xclk60mhsp1_ck set parent"
"failed error:%d\n", ret);
goto err_tll;
}
} else if (is_ehci_tll_mode(pdata->port_mode[0])) {
ret = clk_set_parent(omap->utmi_p1_fck,
omap->init_60m_fclk);
if (ret != 0) {
dev_err(dev, "init_60m_fclk set parent"
"failed error:%d\n", ret);
goto err_tll;
}
clk_enable(omap->usbhost_p1_fck);
clk_enable(omap->usbtll_p1_fck);
}
if (is_ehci_phy_mode(pdata->port_mode[1])) {
ret = clk_set_parent(omap->utmi_p2_fck,
omap->xclk60mhsp2_ck);
if (ret != 0) {
dev_err(dev, "xclk60mhsp1_ck set parent"
"failed error:%d\n", ret);
goto err_tll;
}
} else if (is_ehci_tll_mode(pdata->port_mode[1])) {
ret = clk_set_parent(omap->utmi_p2_fck,
omap->init_60m_fclk);
if (ret != 0) {
dev_err(dev, "init_60m_fclk set parent"
"failed error:%d\n", ret);
goto err_tll;
}
clk_enable(omap->usbhost_p2_fck);
clk_enable(omap->usbtll_p2_fck);
}
clk_enable(omap->utmi_p1_fck);
clk_enable(omap->utmi_p2_fck);
if (is_ehci_tll_mode(pdata->port_mode[0]) ||
(is_ohci_port(pdata->port_mode[0])))
reg |= OMAP4_P1_MODE_TLL;
else if (is_ehci_hsic_mode(pdata->port_mode[0]))
reg |= OMAP4_P1_MODE_HSIC;
if (is_ehci_tll_mode(pdata->port_mode[1]) ||
(is_ohci_port(pdata->port_mode[1])))
reg |= OMAP4_P2_MODE_TLL;
else if (is_ehci_hsic_mode(pdata->port_mode[1]))
reg |= OMAP4_P2_MODE_HSIC;
}
usbhs_write(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
dev_dbg(dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
if (is_ehci_tll_mode(pdata->port_mode[0]) ||
is_ehci_tll_mode(pdata->port_mode[1]) ||
is_ehci_tll_mode(pdata->port_mode[2]) ||
(is_ohci_port(pdata->port_mode[0])) ||
(is_ohci_port(pdata->port_mode[1])) ||
(is_ohci_port(pdata->port_mode[2]))) {
/* Enable UTMI mode for required TLL channels */
if (is_omap_usbhs_rev2(omap))
usbhs_omap_tll_init(dev, OMAP_REV2_TLL_CHANNEL_COUNT);
else
usbhs_omap_tll_init(dev, OMAP_TLL_CHANNEL_COUNT);
}
if (pdata->ehci_data->phy_reset) {
/* Hold the PHY in RESET for enough time till
* PHY is settled and ready
*/
udelay(10);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
gpio_set_value
(pdata->ehci_data->reset_gpio_port[0], 1);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
gpio_set_value
(pdata->ehci_data->reset_gpio_port[1], 1);
}
end_count:
omap->count++;
spin_unlock_irqrestore(&omap->lock, flags);
return 0;
err_tll:
if (pdata->ehci_data->phy_reset) {
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
gpio_free(pdata->ehci_data->reset_gpio_port[0]);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
gpio_free(pdata->ehci_data->reset_gpio_port[1]);
}
clk_disable(omap->usbtll_ick);
clk_disable(omap->usbtll_fck);
clk_disable(omap->usbhost_fs_fck);
clk_disable(omap->usbhost_hs_fck);
clk_disable(omap->usbhost_ick);
spin_unlock_irqrestore(&omap->lock, flags);
return ret;
}
static void omap_usbhs_init(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = &omap->platdata;
unsigned long flags = 0;
unsigned reg;
dev_dbg(dev, "starting TI HSUSB Controller\n");
pm_runtime_get_sync(dev);
spin_lock_irqsave(&omap->lock, flags);
if (pdata->ehci_data->phy_reset) {
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) {
gpio_request(pdata->ehci_data->reset_gpio_port[0],
"USB1 PHY reset");
gpio_direction_output
(pdata->ehci_data->reset_gpio_port[0], 0);
}
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) {
gpio_request(pdata->ehci_data->reset_gpio_port[1],
"USB2 PHY reset");
gpio_direction_output
(pdata->ehci_data->reset_gpio_port[1], 0);
}
/* Hold the PHY in RESET for enough time till DIR is high */
udelay(10);
}
omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION);
dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev);
/*
* Really enable the port clocks
* first call of pm_runtime_get_sync does not enable these
* port clocks; because omap->usbhs_rev was not available
* This omap->usbhs_rev is available now!
*/
usbhs_runtime_resume(dev);
reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
/* setup ULPI bypass and burst configurations */
reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
| OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
| OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN);
/* Keep ENA_INCR_ALIGN = 0: Known to cause OCP delays */
reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
if (is_omap_usbhs_rev1(omap)) {
if (pdata->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
if (pdata->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
if (pdata->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
/* Bypass the TLL module for PHY mode operation */
if (cpu_is_omap3430() && (omap_rev() <= OMAP3430_REV_ES2_1)) {
dev_dbg(dev, "OMAP3 ES version <= ES2.1\n");
if (is_ehci_phy_mode(pdata->port_mode[0]) ||
is_ehci_phy_mode(pdata->port_mode[1]) ||
is_ehci_phy_mode(pdata->port_mode[2]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
} else {
dev_dbg(dev, "OMAP3 ES version > ES2.1\n");
if (is_ehci_phy_mode(pdata->port_mode[0]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
if (is_ehci_phy_mode(pdata->port_mode[1]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
if (is_ehci_phy_mode(pdata->port_mode[2]))
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
else
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
}
} else if (is_omap_usbhs_rev2(omap)) {
/* Clear port mode fields for PHY mode*/
reg &= ~OMAP4_P1_MODE_CLEAR;
reg &= ~OMAP4_P2_MODE_CLEAR;
if (is_ehci_tll_mode(pdata->port_mode[0]) ||
(is_ohci_port(pdata->port_mode[0])))
reg |= OMAP4_P1_MODE_TLL;
else if (is_ehci_hsic_mode(pdata->port_mode[0]))
reg |= OMAP4_P1_MODE_HSIC;
if (is_ehci_tll_mode(pdata->port_mode[1]) ||
(is_ohci_port(pdata->port_mode[1])))
reg |= OMAP4_P2_MODE_TLL;
else if (is_ehci_hsic_mode(pdata->port_mode[1]))
reg |= OMAP4_P2_MODE_HSIC;
}
usbhs_write(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
dev_dbg(dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
if (is_ehci_tll_mode(pdata->port_mode[0]) ||
is_ehci_tll_mode(pdata->port_mode[1]) ||
is_ehci_tll_mode(pdata->port_mode[2]) ||
(is_ohci_port(pdata->port_mode[0])) ||
(is_ohci_port(pdata->port_mode[1])) ||
(is_ohci_port(pdata->port_mode[2]))) {
/* Enable UTMI mode for required TLL channels */
if (is_omap_usbhs_rev2(omap))
usbhs_omap_tll_init(dev, OMAP_REV2_TLL_CHANNEL_COUNT);
else
usbhs_omap_tll_init(dev, OMAP_TLL_CHANNEL_COUNT);
}
if (pdata->ehci_data->phy_reset) {
/* Hold the PHY in RESET for enough time till
* PHY is settled and ready
*/
udelay(10);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
gpio_set_value
(pdata->ehci_data->reset_gpio_port[0], 1);
if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
gpio_set_value
(pdata->ehci_data->reset_gpio_port[1], 1);
}
spin_unlock_irqrestore(&omap->lock, flags);
pm_runtime_put_sync(dev);
}
int omap_tll_init(struct usbhs_omap_platform_data *pdata)
{
int i;
bool needs_tll;
unsigned reg;
struct usbtll_omap *tll;
if (!tll_dev)
return -ENODEV;
pm_runtime_get_sync(tll_dev);
spin_lock(&tll_lock);
tll = dev_get_drvdata(tll_dev);
needs_tll = false;
for (i = 0; i < tll->nch; i++)
needs_tll |= omap_usb_mode_needs_tll(pdata->port_mode[i]);
if (needs_tll) {
void __iomem *base = tll->base;
/* Program Common TLL register */
reg = usbtll_read(base, OMAP_TLL_SHARED_CONF);
reg |= (OMAP_TLL_SHARED_CONF_FCLK_IS_ON
| OMAP_TLL_SHARED_CONF_USB_DIVRATION);
reg &= ~OMAP_TLL_SHARED_CONF_USB_90D_DDR_EN;
reg &= ~OMAP_TLL_SHARED_CONF_USB_180D_SDR_EN;
usbtll_write(base, OMAP_TLL_SHARED_CONF, reg);
/* Enable channels now */
for (i = 0; i < tll->nch; i++) {
reg = usbtll_read(base, OMAP_TLL_CHANNEL_CONF(i));
if (is_ohci_port(pdata->port_mode[i])) {
reg |= ohci_omap3_fslsmode(pdata->port_mode[i])
<< OMAP_TLL_CHANNEL_CONF_FSLSMODE_SHIFT;
reg |= OMAP_TLL_CHANNEL_CONF_CHANMODE_FSLS;
} else if (pdata->port_mode[i] ==
OMAP_EHCI_PORT_MODE_TLL) {
/*
* Disable AutoIdle, BitStuffing
* and use SDR Mode
*/
reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE
| OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF
| OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE);
} else if (pdata->port_mode[i] ==
OMAP_EHCI_PORT_MODE_HSIC) {
/*
* HSIC Mode requires UTMI port configurations
*/
reg |= OMAP_TLL_CHANNEL_CONF_DRVVBUS
| OMAP_TLL_CHANNEL_CONF_CHRGVBUS
| OMAP_TLL_CHANNEL_CONF_MODE_TRANSPARENT_UTMI
| OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF;
} else {
continue;
}
reg |= OMAP_TLL_CHANNEL_CONF_CHANEN;
usbtll_write(base, OMAP_TLL_CHANNEL_CONF(i), reg);
usbtll_writeb(base,
OMAP_TLL_ULPI_SCRATCH_REGISTER(i),
0xbe);
}
}
spin_unlock(&tll_lock);
pm_runtime_put_sync(tll_dev);
return 0;
}