diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/mfd/omap-usb-host.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/mfd/omap-usb-host.c | 874 |
1 files changed, 0 insertions, 874 deletions
diff --git a/ANDROID_3.4.5/drivers/mfd/omap-usb-host.c b/ANDROID_3.4.5/drivers/mfd/omap-usb-host.c deleted file mode 100644 index 7e96bb22..00000000 --- a/ANDROID_3.4.5/drivers/mfd/omap-usb-host.c +++ /dev/null @@ -1,874 +0,0 @@ -/** - * omap-usb-host.c - The USBHS core driver for OMAP EHCI & OHCI - * - * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com - * Author: Keshava Munegowda <keshava_mgowda@ti.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 of - * the License as published by the Free Software Foundation. - * - * 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, see <http://www.gnu.org/licenses/>. - */ -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/platform_device.h> -#include <linux/clk.h> -#include <linux/dma-mapping.h> -#include <linux/spinlock.h> -#include <plat/cpu.h> -#include <plat/usb.h> -#include <linux/pm_runtime.h> - -#define USBHS_DRIVER_NAME "usbhs_omap" -#define OMAP_EHCI_DEVICE "ehci-omap" -#define OMAP_OHCI_DEVICE "ohci-omap3" - -/* OMAP USBHOST Register addresses */ - -/* TLL Register Set */ -#define OMAP_USBTLL_REVISION (0x00) -#define OMAP_USBTLL_SYSCONFIG (0x10) -#define OMAP_USBTLL_SYSCONFIG_CACTIVITY (1 << 8) -#define OMAP_USBTLL_SYSCONFIG_SIDLEMODE (1 << 3) -#define OMAP_USBTLL_SYSCONFIG_ENAWAKEUP (1 << 2) -#define OMAP_USBTLL_SYSCONFIG_SOFTRESET (1 << 1) -#define OMAP_USBTLL_SYSCONFIG_AUTOIDLE (1 << 0) - -#define OMAP_USBTLL_SYSSTATUS (0x14) -#define OMAP_USBTLL_SYSSTATUS_RESETDONE (1 << 0) - -#define OMAP_USBTLL_IRQSTATUS (0x18) -#define OMAP_USBTLL_IRQENABLE (0x1C) - -#define OMAP_TLL_SHARED_CONF (0x30) -#define OMAP_TLL_SHARED_CONF_USB_90D_DDR_EN (1 << 6) -#define OMAP_TLL_SHARED_CONF_USB_180D_SDR_EN (1 << 5) -#define OMAP_TLL_SHARED_CONF_USB_DIVRATION (1 << 2) -#define OMAP_TLL_SHARED_CONF_FCLK_REQ (1 << 1) -#define OMAP_TLL_SHARED_CONF_FCLK_IS_ON (1 << 0) - -#define OMAP_TLL_CHANNEL_CONF(num) (0x040 + 0x004 * num) -#define OMAP_TLL_CHANNEL_CONF_FSLSMODE_SHIFT 24 -#define OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF (1 << 11) -#define OMAP_TLL_CHANNEL_CONF_ULPI_ULPIAUTOIDLE (1 << 10) -#define OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE (1 << 9) -#define OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE (1 << 8) -#define OMAP_TLL_CHANNEL_CONF_CHANMODE_FSLS (1 << 1) -#define OMAP_TLL_CHANNEL_CONF_CHANEN (1 << 0) - -#define OMAP_TLL_FSLSMODE_6PIN_PHY_DAT_SE0 0x0 -#define OMAP_TLL_FSLSMODE_6PIN_PHY_DP_DM 0x1 -#define OMAP_TLL_FSLSMODE_3PIN_PHY 0x2 -#define OMAP_TLL_FSLSMODE_4PIN_PHY 0x3 -#define OMAP_TLL_FSLSMODE_6PIN_TLL_DAT_SE0 0x4 -#define OMAP_TLL_FSLSMODE_6PIN_TLL_DP_DM 0x5 -#define OMAP_TLL_FSLSMODE_3PIN_TLL 0x6 -#define OMAP_TLL_FSLSMODE_4PIN_TLL 0x7 -#define OMAP_TLL_FSLSMODE_2PIN_TLL_DAT_SE0 0xA -#define OMAP_TLL_FSLSMODE_2PIN_DAT_DP_DM 0xB - -#define OMAP_TLL_ULPI_FUNCTION_CTRL(num) (0x804 + 0x100 * num) -#define OMAP_TLL_ULPI_INTERFACE_CTRL(num) (0x807 + 0x100 * num) -#define OMAP_TLL_ULPI_OTG_CTRL(num) (0x80A + 0x100 * num) -#define OMAP_TLL_ULPI_INT_EN_RISE(num) (0x80D + 0x100 * num) -#define OMAP_TLL_ULPI_INT_EN_FALL(num) (0x810 + 0x100 * num) -#define OMAP_TLL_ULPI_INT_STATUS(num) (0x813 + 0x100 * num) -#define OMAP_TLL_ULPI_INT_LATCH(num) (0x814 + 0x100 * num) -#define OMAP_TLL_ULPI_DEBUG(num) (0x815 + 0x100 * num) -#define OMAP_TLL_ULPI_SCRATCH_REGISTER(num) (0x816 + 0x100 * num) - -#define OMAP_TLL_CHANNEL_COUNT 3 -#define OMAP_TLL_CHANNEL_1_EN_MASK (1 << 0) -#define OMAP_TLL_CHANNEL_2_EN_MASK (1 << 1) -#define OMAP_TLL_CHANNEL_3_EN_MASK (1 << 2) - -/* UHH Register Set */ -#define OMAP_UHH_REVISION (0x00) -#define OMAP_UHH_SYSCONFIG (0x10) -#define OMAP_UHH_SYSCONFIG_MIDLEMODE (1 << 12) -#define OMAP_UHH_SYSCONFIG_CACTIVITY (1 << 8) -#define OMAP_UHH_SYSCONFIG_SIDLEMODE (1 << 3) -#define OMAP_UHH_SYSCONFIG_ENAWAKEUP (1 << 2) -#define OMAP_UHH_SYSCONFIG_SOFTRESET (1 << 1) -#define OMAP_UHH_SYSCONFIG_AUTOIDLE (1 << 0) - -#define OMAP_UHH_SYSSTATUS (0x14) -#define OMAP_UHH_HOSTCONFIG (0x40) -#define OMAP_UHH_HOSTCONFIG_ULPI_BYPASS (1 << 0) -#define OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS (1 << 0) -#define OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS (1 << 11) -#define OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS (1 << 12) -#define OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN (1 << 2) -#define OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN (1 << 3) -#define OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN (1 << 4) -#define OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN (1 << 5) -#define OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS (1 << 8) -#define OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS (1 << 9) -#define OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS (1 << 10) -#define OMAP4_UHH_HOSTCONFIG_APP_START_CLK (1 << 31) - -/* OMAP4-specific defines */ -#define OMAP4_UHH_SYSCONFIG_IDLEMODE_CLEAR (3 << 2) -#define OMAP4_UHH_SYSCONFIG_NOIDLE (1 << 2) -#define OMAP4_UHH_SYSCONFIG_STDBYMODE_CLEAR (3 << 4) -#define OMAP4_UHH_SYSCONFIG_NOSTDBY (1 << 4) -#define OMAP4_UHH_SYSCONFIG_SOFTRESET (1 << 0) - -#define OMAP4_P1_MODE_CLEAR (3 << 16) -#define OMAP4_P1_MODE_TLL (1 << 16) -#define OMAP4_P1_MODE_HSIC (3 << 16) -#define OMAP4_P2_MODE_CLEAR (3 << 18) -#define OMAP4_P2_MODE_TLL (1 << 18) -#define OMAP4_P2_MODE_HSIC (3 << 18) - -#define OMAP_REV2_TLL_CHANNEL_COUNT 2 - -#define OMAP_UHH_DEBUG_CSR (0x44) - -/* Values of UHH_REVISION - Note: these are not given in the TRM */ -#define OMAP_USBHS_REV1 0x00000010 /* OMAP3 */ -#define OMAP_USBHS_REV2 0x50700100 /* OMAP4 */ - -#define is_omap_usbhs_rev1(x) (x->usbhs_rev == OMAP_USBHS_REV1) -#define is_omap_usbhs_rev2(x) (x->usbhs_rev == OMAP_USBHS_REV2) - -#define is_ehci_phy_mode(x) (x == OMAP_EHCI_PORT_MODE_PHY) -#define is_ehci_tll_mode(x) (x == OMAP_EHCI_PORT_MODE_TLL) -#define is_ehci_hsic_mode(x) (x == OMAP_EHCI_PORT_MODE_HSIC) - - -struct usbhs_hcd_omap { - struct clk *xclk60mhsp1_ck; - struct clk *xclk60mhsp2_ck; - struct clk *utmi_p1_fck; - struct clk *usbhost_p1_fck; - struct clk *usbtll_p1_fck; - struct clk *utmi_p2_fck; - struct clk *usbhost_p2_fck; - struct clk *usbtll_p2_fck; - struct clk *init_60m_fclk; - struct clk *ehci_logic_fck; - - void __iomem *uhh_base; - void __iomem *tll_base; - - struct usbhs_omap_platform_data platdata; - - u32 usbhs_rev; - spinlock_t lock; -}; -/*-------------------------------------------------------------------------*/ - -const char usbhs_driver_name[] = USBHS_DRIVER_NAME; -static u64 usbhs_dmamask = DMA_BIT_MASK(32); - -/*-------------------------------------------------------------------------*/ - -static inline void usbhs_write(void __iomem *base, u32 reg, u32 val) -{ - __raw_writel(val, base + reg); -} - -static inline u32 usbhs_read(void __iomem *base, u32 reg) -{ - return __raw_readl(base + reg); -} - -static inline void usbhs_writeb(void __iomem *base, u8 reg, u8 val) -{ - __raw_writeb(val, base + reg); -} - -static inline u8 usbhs_readb(void __iomem *base, u8 reg) -{ - return __raw_readb(base + reg); -} - -/*-------------------------------------------------------------------------*/ - -static struct platform_device *omap_usbhs_alloc_child(const char *name, - struct resource *res, int num_resources, void *pdata, - size_t pdata_size, struct device *dev) -{ - struct platform_device *child; - int ret; - - child = platform_device_alloc(name, 0); - - if (!child) { - dev_err(dev, "platform_device_alloc %s failed\n", name); - goto err_end; - } - - ret = platform_device_add_resources(child, res, num_resources); - if (ret) { - dev_err(dev, "platform_device_add_resources failed\n"); - goto err_alloc; - } - - ret = platform_device_add_data(child, pdata, pdata_size); - if (ret) { - dev_err(dev, "platform_device_add_data failed\n"); - goto err_alloc; - } - - child->dev.dma_mask = &usbhs_dmamask; - dma_set_coherent_mask(&child->dev, DMA_BIT_MASK(32)); - child->dev.parent = dev; - - ret = platform_device_add(child); - if (ret) { - dev_err(dev, "platform_device_add failed\n"); - goto err_alloc; - } - - return child; - -err_alloc: - platform_device_put(child); - -err_end: - return NULL; -} - -static int omap_usbhs_alloc_children(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct usbhs_hcd_omap *omap; - struct ehci_hcd_omap_platform_data *ehci_data; - struct ohci_hcd_omap_platform_data *ohci_data; - struct platform_device *ehci; - struct platform_device *ohci; - struct resource *res; - struct resource resources[2]; - int ret; - - omap = platform_get_drvdata(pdev); - ehci_data = omap->platdata.ehci_data; - ohci_data = omap->platdata.ohci_data; - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ehci"); - if (!res) { - dev_err(dev, "EHCI get resource IORESOURCE_MEM failed\n"); - ret = -ENODEV; - goto err_end; - } - resources[0] = *res; - - res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "ehci-irq"); - if (!res) { - dev_err(dev, " EHCI get resource IORESOURCE_IRQ failed\n"); - ret = -ENODEV; - goto err_end; - } - resources[1] = *res; - - ehci = omap_usbhs_alloc_child(OMAP_EHCI_DEVICE, resources, 2, ehci_data, - sizeof(*ehci_data), dev); - - if (!ehci) { - dev_err(dev, "omap_usbhs_alloc_child failed\n"); - ret = -ENOMEM; - goto err_end; - } - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ohci"); - if (!res) { - dev_err(dev, "OHCI get resource IORESOURCE_MEM failed\n"); - ret = -ENODEV; - goto err_ehci; - } - resources[0] = *res; - - res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "ohci-irq"); - if (!res) { - dev_err(dev, "OHCI get resource IORESOURCE_IRQ failed\n"); - ret = -ENODEV; - goto err_ehci; - } - resources[1] = *res; - - ohci = omap_usbhs_alloc_child(OMAP_OHCI_DEVICE, resources, 2, ohci_data, - sizeof(*ohci_data), dev); - if (!ohci) { - dev_err(dev, "omap_usbhs_alloc_child failed\n"); - ret = -ENOMEM; - goto err_ehci; - } - - return 0; - -err_ehci: - platform_device_unregister(ehci); - -err_end: - return ret; -} - -static bool is_ohci_port(enum usbhs_omap_port_mode pmode) -{ - switch (pmode) { - case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0: - case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM: - case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0: - case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM: - case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0: - case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM: - case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0: - case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM: - case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0: - case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM: - return true; - - default: - return false; - } -} - -/* - * convert the port-mode enum to a value we can use in the FSLSMODE - * field of USBTLL_CHANNEL_CONF - */ -static unsigned ohci_omap3_fslsmode(enum usbhs_omap_port_mode mode) -{ - switch (mode) { - case OMAP_USBHS_PORT_MODE_UNUSED: - case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0: - return OMAP_TLL_FSLSMODE_6PIN_PHY_DAT_SE0; - - case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM: - return OMAP_TLL_FSLSMODE_6PIN_PHY_DP_DM; - - case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0: - return OMAP_TLL_FSLSMODE_3PIN_PHY; - - case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM: - return OMAP_TLL_FSLSMODE_4PIN_PHY; - - case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0: - return OMAP_TLL_FSLSMODE_6PIN_TLL_DAT_SE0; - - case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM: - return OMAP_TLL_FSLSMODE_6PIN_TLL_DP_DM; - - case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0: - return OMAP_TLL_FSLSMODE_3PIN_TLL; - - case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM: - return OMAP_TLL_FSLSMODE_4PIN_TLL; - - case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0: - return OMAP_TLL_FSLSMODE_2PIN_TLL_DAT_SE0; - - case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM: - return OMAP_TLL_FSLSMODE_2PIN_DAT_DP_DM; - default: - pr_warning("Invalid port mode, using default\n"); - return OMAP_TLL_FSLSMODE_6PIN_PHY_DAT_SE0; - } -} - -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); - - } 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 int usbhs_runtime_resume(struct device *dev) -{ - struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); - struct usbhs_omap_platform_data *pdata = &omap->platdata; - unsigned long flags; - - dev_dbg(dev, "usbhs_runtime_resume\n"); - - if (!pdata) { - dev_dbg(dev, "missing platform_data\n"); - return -ENODEV; - } - - spin_lock_irqsave(&omap->lock, flags); - - if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck)) - clk_enable(omap->ehci_logic_fck); - - if (is_ehci_tll_mode(pdata->port_mode[0])) { - clk_enable(omap->usbhost_p1_fck); - clk_enable(omap->usbtll_p1_fck); - } - if (is_ehci_tll_mode(pdata->port_mode[1])) { - clk_enable(omap->usbhost_p2_fck); - clk_enable(omap->usbtll_p2_fck); - } - clk_enable(omap->utmi_p1_fck); - clk_enable(omap->utmi_p2_fck); - - spin_unlock_irqrestore(&omap->lock, flags); - - return 0; -} - -static int usbhs_runtime_suspend(struct device *dev) -{ - struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); - struct usbhs_omap_platform_data *pdata = &omap->platdata; - unsigned long flags; - - dev_dbg(dev, "usbhs_runtime_suspend\n"); - - if (!pdata) { - dev_dbg(dev, "missing platform_data\n"); - return -ENODEV; - } - - spin_lock_irqsave(&omap->lock, flags); - - if (is_ehci_tll_mode(pdata->port_mode[0])) { - clk_disable(omap->usbhost_p1_fck); - clk_disable(omap->usbtll_p1_fck); - } - if (is_ehci_tll_mode(pdata->port_mode[1])) { - clk_disable(omap->usbhost_p2_fck); - clk_disable(omap->usbtll_p2_fck); - } - clk_disable(omap->utmi_p2_fck); - clk_disable(omap->utmi_p1_fck); - - if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck)) - clk_disable(omap->ehci_logic_fck); - - spin_unlock_irqrestore(&omap->lock, flags); - - return 0; -} - -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); -} - - -/** - * usbhs_omap_probe - initialize TI-based HCDs - * - * Allocates basic resources for this USB host controller. - */ -static int __devinit usbhs_omap_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct usbhs_omap_platform_data *pdata = dev->platform_data; - struct usbhs_hcd_omap *omap; - struct resource *res; - int ret = 0; - int i; - - if (!pdata) { - dev_err(dev, "Missing platform data\n"); - ret = -ENOMEM; - goto end_probe; - } - - omap = kzalloc(sizeof(*omap), GFP_KERNEL); - if (!omap) { - dev_err(dev, "Memory allocation failed\n"); - ret = -ENOMEM; - goto end_probe; - } - - spin_lock_init(&omap->lock); - - for (i = 0; i < OMAP3_HS_USB_PORTS; i++) - omap->platdata.port_mode[i] = pdata->port_mode[i]; - - omap->platdata.ehci_data = pdata->ehci_data; - omap->platdata.ohci_data = pdata->ohci_data; - - pm_runtime_enable(dev); - - - for (i = 0; i < OMAP3_HS_USB_PORTS; i++) - if (is_ehci_phy_mode(i) || is_ehci_tll_mode(i) || - is_ehci_hsic_mode(i)) { - omap->ehci_logic_fck = clk_get(dev, "ehci_logic_fck"); - if (IS_ERR(omap->ehci_logic_fck)) { - ret = PTR_ERR(omap->ehci_logic_fck); - dev_warn(dev, "ehci_logic_fck failed:%d\n", - ret); - } - break; - } - - omap->utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk"); - if (IS_ERR(omap->utmi_p1_fck)) { - ret = PTR_ERR(omap->utmi_p1_fck); - dev_err(dev, "utmi_p1_gfclk failed error:%d\n", ret); - goto err_end; - } - - omap->xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck"); - if (IS_ERR(omap->xclk60mhsp1_ck)) { - ret = PTR_ERR(omap->xclk60mhsp1_ck); - dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret); - goto err_utmi_p1_fck; - } - - omap->utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk"); - if (IS_ERR(omap->utmi_p2_fck)) { - ret = PTR_ERR(omap->utmi_p2_fck); - dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret); - goto err_xclk60mhsp1_ck; - } - - omap->xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck"); - if (IS_ERR(omap->xclk60mhsp2_ck)) { - ret = PTR_ERR(omap->xclk60mhsp2_ck); - dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret); - goto err_utmi_p2_fck; - } - - omap->usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk"); - if (IS_ERR(omap->usbhost_p1_fck)) { - ret = PTR_ERR(omap->usbhost_p1_fck); - dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret); - goto err_xclk60mhsp2_ck; - } - - omap->usbtll_p1_fck = clk_get(dev, "usb_tll_hs_usb_ch0_clk"); - if (IS_ERR(omap->usbtll_p1_fck)) { - ret = PTR_ERR(omap->usbtll_p1_fck); - dev_err(dev, "usbtll_p1_fck failed error:%d\n", ret); - goto err_usbhost_p1_fck; - } - - omap->usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk"); - if (IS_ERR(omap->usbhost_p2_fck)) { - ret = PTR_ERR(omap->usbhost_p2_fck); - dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret); - goto err_usbtll_p1_fck; - } - - omap->usbtll_p2_fck = clk_get(dev, "usb_tll_hs_usb_ch1_clk"); - if (IS_ERR(omap->usbtll_p2_fck)) { - ret = PTR_ERR(omap->usbtll_p2_fck); - dev_err(dev, "usbtll_p2_fck failed error:%d\n", ret); - goto err_usbhost_p2_fck; - } - - omap->init_60m_fclk = clk_get(dev, "init_60m_fclk"); - if (IS_ERR(omap->init_60m_fclk)) { - ret = PTR_ERR(omap->init_60m_fclk); - dev_err(dev, "init_60m_fclk failed error:%d\n", ret); - goto err_usbtll_p2_fck; - } - - if (is_ehci_phy_mode(pdata->port_mode[0])) { - /* for OMAP3 , the clk set paretn fails */ - 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); - } 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); - } - - 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, "xclk60mhsp2_ck set parent" - "failed error:%d\n", ret); - } 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); - } - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh"); - if (!res) { - dev_err(dev, "UHH EHCI get resource failed\n"); - ret = -ENODEV; - goto err_init_60m_fclk; - } - - omap->uhh_base = ioremap(res->start, resource_size(res)); - if (!omap->uhh_base) { - dev_err(dev, "UHH ioremap failed\n"); - ret = -ENOMEM; - goto err_init_60m_fclk; - } - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tll"); - if (!res) { - dev_err(dev, "UHH EHCI get resource failed\n"); - ret = -ENODEV; - goto err_tll; - } - - omap->tll_base = ioremap(res->start, resource_size(res)); - if (!omap->tll_base) { - dev_err(dev, "TLL ioremap failed\n"); - ret = -ENOMEM; - goto err_tll; - } - - platform_set_drvdata(pdev, omap); - - omap_usbhs_init(dev); - ret = omap_usbhs_alloc_children(pdev); - if (ret) { - dev_err(dev, "omap_usbhs_alloc_children failed\n"); - goto err_alloc; - } - - goto end_probe; - -err_alloc: - iounmap(omap->tll_base); - -err_tll: - iounmap(omap->uhh_base); - -err_init_60m_fclk: - clk_put(omap->init_60m_fclk); - -err_usbtll_p2_fck: - clk_put(omap->usbtll_p2_fck); - -err_usbhost_p2_fck: - clk_put(omap->usbhost_p2_fck); - -err_usbtll_p1_fck: - clk_put(omap->usbtll_p1_fck); - -err_usbhost_p1_fck: - clk_put(omap->usbhost_p1_fck); - -err_xclk60mhsp2_ck: - clk_put(omap->xclk60mhsp2_ck); - -err_utmi_p2_fck: - clk_put(omap->utmi_p2_fck); - -err_xclk60mhsp1_ck: - clk_put(omap->xclk60mhsp1_ck); - -err_utmi_p1_fck: - clk_put(omap->utmi_p1_fck); - -err_end: - clk_put(omap->ehci_logic_fck); - pm_runtime_disable(dev); - kfree(omap); - -end_probe: - return ret; -} - -/** - * usbhs_omap_remove - shutdown processing for UHH & TLL HCDs - * @pdev: USB Host Controller being removed - * - * Reverses the effect of usbhs_omap_probe(). - */ -static int __devexit usbhs_omap_remove(struct platform_device *pdev) -{ - struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev); - - iounmap(omap->tll_base); - iounmap(omap->uhh_base); - clk_put(omap->init_60m_fclk); - clk_put(omap->usbtll_p2_fck); - clk_put(omap->usbhost_p2_fck); - clk_put(omap->usbtll_p1_fck); - clk_put(omap->usbhost_p1_fck); - clk_put(omap->xclk60mhsp2_ck); - clk_put(omap->utmi_p2_fck); - clk_put(omap->xclk60mhsp1_ck); - clk_put(omap->utmi_p1_fck); - clk_put(omap->ehci_logic_fck); - pm_runtime_disable(&pdev->dev); - kfree(omap); - - return 0; -} - -static const struct dev_pm_ops usbhsomap_dev_pm_ops = { - .runtime_suspend = usbhs_runtime_suspend, - .runtime_resume = usbhs_runtime_resume, -}; - -static struct platform_driver usbhs_omap_driver = { - .driver = { - .name = (char *)usbhs_driver_name, - .owner = THIS_MODULE, - .pm = &usbhsomap_dev_pm_ops, - }, - .remove = __exit_p(usbhs_omap_remove), -}; - -MODULE_AUTHOR("Keshava Munegowda <keshava_mgowda@ti.com>"); -MODULE_ALIAS("platform:" USBHS_DRIVER_NAME); -MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("usb host common core driver for omap EHCI and OHCI"); - -static int __init omap_usbhs_drvinit(void) -{ - return platform_driver_probe(&usbhs_omap_driver, usbhs_omap_probe); -} - -/* - * init before ehci and ohci drivers; - * The usbhs core driver should be initialized much before - * the omap ehci and ohci probe functions are called. - */ -fs_initcall(omap_usbhs_drvinit); - -static void __exit omap_usbhs_drvexit(void) -{ - platform_driver_unregister(&usbhs_omap_driver); -} -module_exit(omap_usbhs_drvexit); |