mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-21 00:42:16 +00:00
usb: host: omap: ehci and ohci simplification
The ehci and ohci drivers are simplified; Since UHH and TLL initialization, clock handling are done by common usbhs core driver, these functionalities are removed from ehci and ohci drivers. Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Keshava Munegowda
Felipe Balbi
parent
3b68ae73d8
commit
19403165c2
File diff suppressed because it is too large
Load Diff
@ -7,6 +7,7 @@
|
||||
* Copyright (C) 2007-2010 Texas Instruments, Inc.
|
||||
* Author: Vikram Pandita <vikram.pandita@ti.com>
|
||||
* Author: Anand Gadiyar <gadiyar@ti.com>
|
||||
* Author: Keshava Munegowda <keshava_mgowda@ti.com>
|
||||
*
|
||||
* Based on ehci-omap.c and some other ohci glue layers
|
||||
*
|
||||
@ -24,150 +25,15 @@
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* TODO (last updated Mar 10th, 2010):
|
||||
* TODO (last updated Feb 27, 2011):
|
||||
* - add kernel-doc
|
||||
* - Factor out code common to EHCI to a separate file
|
||||
* - Make EHCI and OHCI coexist together
|
||||
* - needs newer silicon versions to actually work
|
||||
* - the last one to be loaded currently steps on the other's toes
|
||||
* - Add hooks for configuring transceivers, etc. at init/exit
|
||||
* - Add aggressive clock-management code
|
||||
*/
|
||||
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/clk.h>
|
||||
|
||||
#include <plat/usb.h>
|
||||
|
||||
/*
|
||||
* OMAP USBHOST Register addresses: VIRTUAL ADDRESSES
|
||||
* Use ohci_omap_readl()/ohci_omap_writel() functions
|
||||
*/
|
||||
|
||||
/* 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_CHANNEL_COUNT 3
|
||||
|
||||
/* 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_SYSSTATUS_UHHRESETDONE (1 << 0)
|
||||
#define OMAP_UHH_SYSSTATUS_OHCIRESETDONE (1 << 1)
|
||||
#define OMAP_UHH_SYSSTATUS_EHCIRESETDONE (1 << 2)
|
||||
#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 OMAP_UHH_DEBUG_CSR (0x44)
|
||||
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
static inline void ohci_omap_writel(void __iomem *base, u32 reg, u32 val)
|
||||
{
|
||||
__raw_writel(val, base + reg);
|
||||
}
|
||||
|
||||
static inline u32 ohci_omap_readl(void __iomem *base, u32 reg)
|
||||
{
|
||||
return __raw_readl(base + reg);
|
||||
}
|
||||
|
||||
static inline void ohci_omap_writeb(void __iomem *base, u8 reg, u8 val)
|
||||
{
|
||||
__raw_writeb(val, base + reg);
|
||||
}
|
||||
|
||||
static inline u8 ohci_omap_readb(void __iomem *base, u8 reg)
|
||||
{
|
||||
return __raw_readb(base + reg);
|
||||
}
|
||||
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
struct ohci_hcd_omap3 {
|
||||
struct ohci_hcd *ohci;
|
||||
struct device *dev;
|
||||
|
||||
struct clk *usbhost_ick;
|
||||
struct clk *usbhost2_120m_fck;
|
||||
struct clk *usbhost1_48m_fck;
|
||||
struct clk *usbtll_fck;
|
||||
struct clk *usbtll_ick;
|
||||
|
||||
/* port_mode: TLL/PHY, 2/3/4/6-PIN, DP-DM/DAT-SE0 */
|
||||
enum usbhs_omap_port_mode port_mode[OMAP3_HS_USB_PORTS];
|
||||
void __iomem *uhh_base;
|
||||
void __iomem *tll_base;
|
||||
void __iomem *ohci_base;
|
||||
|
||||
unsigned es2_compatibility:1;
|
||||
};
|
||||
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
static void ohci_omap3_clock_power(struct ohci_hcd_omap3 *omap, int on)
|
||||
{
|
||||
if (on) {
|
||||
clk_enable(omap->usbtll_ick);
|
||||
clk_enable(omap->usbtll_fck);
|
||||
clk_enable(omap->usbhost_ick);
|
||||
clk_enable(omap->usbhost1_48m_fck);
|
||||
clk_enable(omap->usbhost2_120m_fck);
|
||||
} else {
|
||||
clk_disable(omap->usbhost2_120m_fck);
|
||||
clk_disable(omap->usbhost1_48m_fck);
|
||||
clk_disable(omap->usbhost_ick);
|
||||
clk_disable(omap->usbtll_fck);
|
||||
clk_disable(omap->usbtll_ick);
|
||||
}
|
||||
}
|
||||
|
||||
static int ohci_omap3_init(struct usb_hcd *hcd)
|
||||
{
|
||||
dev_dbg(hcd->self.controller, "starting OHCI controller\n");
|
||||
@ -175,7 +41,6 @@ static int ohci_omap3_init(struct usb_hcd *hcd)
|
||||
return ohci_init(hcd_to_ohci(hcd));
|
||||
}
|
||||
|
||||
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
static int ohci_omap3_start(struct usb_hcd *hcd)
|
||||
@ -202,325 +67,6 @@ static int ohci_omap3_start(struct usb_hcd *hcd)
|
||||
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
* 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 0x0;
|
||||
|
||||
case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
|
||||
return 0x1;
|
||||
|
||||
case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
|
||||
return 0x2;
|
||||
|
||||
case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
|
||||
return 0x3;
|
||||
|
||||
case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
|
||||
return 0x4;
|
||||
|
||||
case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
|
||||
return 0x5;
|
||||
|
||||
case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
|
||||
return 0x6;
|
||||
|
||||
case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
|
||||
return 0x7;
|
||||
|
||||
case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
|
||||
return 0xA;
|
||||
|
||||
case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
|
||||
return 0xB;
|
||||
default:
|
||||
pr_warning("Invalid port mode, using default\n");
|
||||
return 0x0;
|
||||
}
|
||||
}
|
||||
|
||||
static void ohci_omap3_tll_config(struct ohci_hcd_omap3 *omap)
|
||||
{
|
||||
u32 reg;
|
||||
int i;
|
||||
|
||||
/* Program TLL SHARED CONF */
|
||||
reg = ohci_omap_readl(omap->tll_base, OMAP_TLL_SHARED_CONF);
|
||||
reg &= ~OMAP_TLL_SHARED_CONF_USB_90D_DDR_EN;
|
||||
reg &= ~OMAP_TLL_SHARED_CONF_USB_180D_SDR_EN;
|
||||
reg |= OMAP_TLL_SHARED_CONF_USB_DIVRATION;
|
||||
reg |= OMAP_TLL_SHARED_CONF_FCLK_IS_ON;
|
||||
ohci_omap_writel(omap->tll_base, OMAP_TLL_SHARED_CONF, reg);
|
||||
|
||||
/* Program each TLL channel */
|
||||
/*
|
||||
* REVISIT: Only the 3-pin and 4-pin PHY modes have
|
||||
* actually been tested.
|
||||
*/
|
||||
for (i = 0; i < OMAP_TLL_CHANNEL_COUNT; i++) {
|
||||
|
||||
/* Enable only those channels that are actually used */
|
||||
if (omap->port_mode[i] == OMAP_USBHS_PORT_MODE_UNUSED)
|
||||
continue;
|
||||
|
||||
reg = ohci_omap_readl(omap->tll_base, OMAP_TLL_CHANNEL_CONF(i));
|
||||
reg |= ohci_omap3_fslsmode(omap->port_mode[i])
|
||||
<< OMAP_TLL_CHANNEL_CONF_FSLSMODE_SHIFT;
|
||||
reg |= OMAP_TLL_CHANNEL_CONF_CHANMODE_FSLS;
|
||||
reg |= OMAP_TLL_CHANNEL_CONF_CHANEN;
|
||||
ohci_omap_writel(omap->tll_base, OMAP_TLL_CHANNEL_CONF(i), reg);
|
||||
}
|
||||
}
|
||||
|
||||
/* omap3_start_ohci
|
||||
* - Start the TI USBHOST controller
|
||||
*/
|
||||
static int omap3_start_ohci(struct ohci_hcd_omap3 *omap, struct usb_hcd *hcd)
|
||||
{
|
||||
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
|
||||
u32 reg = 0;
|
||||
int ret = 0;
|
||||
|
||||
dev_dbg(omap->dev, "starting TI OHCI USB Controller\n");
|
||||
|
||||
/* Get all the clock handles we need */
|
||||
omap->usbhost_ick = clk_get(omap->dev, "usbhost_ick");
|
||||
if (IS_ERR(omap->usbhost_ick)) {
|
||||
dev_err(omap->dev, "could not get usbhost_ick\n");
|
||||
ret = PTR_ERR(omap->usbhost_ick);
|
||||
goto err_host_ick;
|
||||
}
|
||||
|
||||
omap->usbhost2_120m_fck = clk_get(omap->dev, "usbhost_120m_fck");
|
||||
if (IS_ERR(omap->usbhost2_120m_fck)) {
|
||||
dev_err(omap->dev, "could not get usbhost_120m_fck\n");
|
||||
ret = PTR_ERR(omap->usbhost2_120m_fck);
|
||||
goto err_host_120m_fck;
|
||||
}
|
||||
|
||||
omap->usbhost1_48m_fck = clk_get(omap->dev, "usbhost_48m_fck");
|
||||
if (IS_ERR(omap->usbhost1_48m_fck)) {
|
||||
dev_err(omap->dev, "could not get usbhost_48m_fck\n");
|
||||
ret = PTR_ERR(omap->usbhost1_48m_fck);
|
||||
goto err_host_48m_fck;
|
||||
}
|
||||
|
||||
omap->usbtll_fck = clk_get(omap->dev, "usbtll_fck");
|
||||
if (IS_ERR(omap->usbtll_fck)) {
|
||||
dev_err(omap->dev, "could not get usbtll_fck\n");
|
||||
ret = PTR_ERR(omap->usbtll_fck);
|
||||
goto err_tll_fck;
|
||||
}
|
||||
|
||||
omap->usbtll_ick = clk_get(omap->dev, "usbtll_ick");
|
||||
if (IS_ERR(omap->usbtll_ick)) {
|
||||
dev_err(omap->dev, "could not get usbtll_ick\n");
|
||||
ret = PTR_ERR(omap->usbtll_ick);
|
||||
goto err_tll_ick;
|
||||
}
|
||||
|
||||
/* Now enable all the clocks in the correct order */
|
||||
ohci_omap3_clock_power(omap, 1);
|
||||
|
||||
/* perform TLL soft reset, and wait until reset is complete */
|
||||
ohci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
|
||||
OMAP_USBTLL_SYSCONFIG_SOFTRESET);
|
||||
|
||||
/* Wait for TLL reset to complete */
|
||||
while (!(ohci_omap_readl(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
|
||||
& OMAP_USBTLL_SYSSTATUS_RESETDONE)) {
|
||||
cpu_relax();
|
||||
|
||||
if (time_after(jiffies, timeout)) {
|
||||
dev_dbg(omap->dev, "operation timed out\n");
|
||||
ret = -EINVAL;
|
||||
goto err_sys_status;
|
||||
}
|
||||
}
|
||||
|
||||
dev_dbg(omap->dev, "TLL reset done\n");
|
||||
|
||||
/* (1<<3) = no idle mode only for initial debugging */
|
||||
ohci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
|
||||
OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
|
||||
OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
|
||||
OMAP_USBTLL_SYSCONFIG_CACTIVITY);
|
||||
|
||||
|
||||
/* Put UHH in NoIdle/NoStandby mode */
|
||||
reg = ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSCONFIG);
|
||||
reg |= (OMAP_UHH_SYSCONFIG_ENAWAKEUP
|
||||
| OMAP_UHH_SYSCONFIG_SIDLEMODE
|
||||
| OMAP_UHH_SYSCONFIG_CACTIVITY
|
||||
| OMAP_UHH_SYSCONFIG_MIDLEMODE);
|
||||
reg &= ~OMAP_UHH_SYSCONFIG_AUTOIDLE;
|
||||
reg &= ~OMAP_UHH_SYSCONFIG_SOFTRESET;
|
||||
|
||||
ohci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG, reg);
|
||||
|
||||
reg = ohci_omap_readl(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 &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
|
||||
|
||||
/*
|
||||
* REVISIT: Pi_CONNECT_STATUS controls MStandby
|
||||
* assertion and Swakeup generation - let us not
|
||||
* worry about this for now. OMAP HWMOD framework
|
||||
* might take care of this later. If not, we can
|
||||
* update these registers when adding aggressive
|
||||
* clock management code.
|
||||
*
|
||||
* For now, turn off all the Pi_CONNECT_STATUS bits
|
||||
*
|
||||
if (omap->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
|
||||
reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
|
||||
if (omap->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
|
||||
reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
|
||||
if (omap->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
|
||||
reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
|
||||
*/
|
||||
reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
|
||||
reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
|
||||
reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
|
||||
|
||||
if (omap->es2_compatibility) {
|
||||
/*
|
||||
* All OHCI modes need to go through the TLL,
|
||||
* unlike in the EHCI case. So use UTMI mode
|
||||
* for all ports for OHCI, on ES2.x silicon
|
||||
*/
|
||||
dev_dbg(omap->dev, "OMAP3 ES version <= ES2.1\n");
|
||||
reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
|
||||
} else {
|
||||
dev_dbg(omap->dev, "OMAP3 ES version > ES2.1\n");
|
||||
if (omap->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
|
||||
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
|
||||
else
|
||||
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
|
||||
|
||||
if (omap->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
|
||||
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
|
||||
else
|
||||
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
|
||||
|
||||
if (omap->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
|
||||
reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
|
||||
else
|
||||
reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
|
||||
|
||||
}
|
||||
ohci_omap_writel(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
|
||||
dev_dbg(omap->dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
|
||||
|
||||
ohci_omap3_tll_config(omap);
|
||||
|
||||
return 0;
|
||||
|
||||
err_sys_status:
|
||||
ohci_omap3_clock_power(omap, 0);
|
||||
clk_put(omap->usbtll_ick);
|
||||
|
||||
err_tll_ick:
|
||||
clk_put(omap->usbtll_fck);
|
||||
|
||||
err_tll_fck:
|
||||
clk_put(omap->usbhost1_48m_fck);
|
||||
|
||||
err_host_48m_fck:
|
||||
clk_put(omap->usbhost2_120m_fck);
|
||||
|
||||
err_host_120m_fck:
|
||||
clk_put(omap->usbhost_ick);
|
||||
|
||||
err_host_ick:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void omap3_stop_ohci(struct ohci_hcd_omap3 *omap, struct usb_hcd *hcd)
|
||||
{
|
||||
unsigned long timeout = jiffies + msecs_to_jiffies(100);
|
||||
|
||||
dev_dbg(omap->dev, "stopping TI EHCI USB Controller\n");
|
||||
|
||||
/* Reset USBHOST for insmod/rmmod to work */
|
||||
ohci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG,
|
||||
OMAP_UHH_SYSCONFIG_SOFTRESET);
|
||||
while (!(ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
|
||||
& OMAP_UHH_SYSSTATUS_UHHRESETDONE)) {
|
||||
cpu_relax();
|
||||
|
||||
if (time_after(jiffies, timeout))
|
||||
dev_dbg(omap->dev, "operation timed out\n");
|
||||
}
|
||||
|
||||
while (!(ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
|
||||
& OMAP_UHH_SYSSTATUS_OHCIRESETDONE)) {
|
||||
cpu_relax();
|
||||
|
||||
if (time_after(jiffies, timeout))
|
||||
dev_dbg(omap->dev, "operation timed out\n");
|
||||
}
|
||||
|
||||
while (!(ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
|
||||
& OMAP_UHH_SYSSTATUS_EHCIRESETDONE)) {
|
||||
cpu_relax();
|
||||
|
||||
if (time_after(jiffies, timeout))
|
||||
dev_dbg(omap->dev, "operation timed out\n");
|
||||
}
|
||||
|
||||
ohci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG, (1 << 1));
|
||||
|
||||
while (!(ohci_omap_readl(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
|
||||
& (1 << 0))) {
|
||||
cpu_relax();
|
||||
|
||||
if (time_after(jiffies, timeout))
|
||||
dev_dbg(omap->dev, "operation timed out\n");
|
||||
}
|
||||
|
||||
ohci_omap3_clock_power(omap, 0);
|
||||
|
||||
if (omap->usbtll_fck != NULL) {
|
||||
clk_put(omap->usbtll_fck);
|
||||
omap->usbtll_fck = NULL;
|
||||
}
|
||||
|
||||
if (omap->usbhost_ick != NULL) {
|
||||
clk_put(omap->usbhost_ick);
|
||||
omap->usbhost_ick = NULL;
|
||||
}
|
||||
|
||||
if (omap->usbhost1_48m_fck != NULL) {
|
||||
clk_put(omap->usbhost1_48m_fck);
|
||||
omap->usbhost1_48m_fck = NULL;
|
||||
}
|
||||
|
||||
if (omap->usbhost2_120m_fck != NULL) {
|
||||
clk_put(omap->usbhost2_120m_fck);
|
||||
omap->usbhost2_120m_fck = NULL;
|
||||
}
|
||||
|
||||
if (omap->usbtll_ick != NULL) {
|
||||
clk_put(omap->usbtll_ick);
|
||||
omap->usbtll_ick = NULL;
|
||||
}
|
||||
|
||||
dev_dbg(omap->dev, "Clock to USB host has been disabled\n");
|
||||
}
|
||||
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
static const struct hc_driver ohci_omap3_hc_driver = {
|
||||
.description = hcd_name,
|
||||
.product_desc = "OMAP3 OHCI Host Controller",
|
||||
@ -580,107 +126,77 @@ static const struct hc_driver ohci_omap3_hc_driver = {
|
||||
*/
|
||||
static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct usbhs_omap_board_data *pdata = pdev->dev.platform_data;
|
||||
struct ohci_hcd_omap3 *omap;
|
||||
struct device *dev = &pdev->dev;
|
||||
struct usb_hcd *hcd = NULL;
|
||||
void __iomem *regs = NULL;
|
||||
struct resource *res;
|
||||
struct usb_hcd *hcd;
|
||||
int ret = -ENODEV;
|
||||
int irq;
|
||||
|
||||
if (usb_disabled())
|
||||
goto err_disabled;
|
||||
goto err_end;
|
||||
|
||||
if (!pdata) {
|
||||
dev_dbg(&pdev->dev, "missing platform_data\n");
|
||||
goto err_pdata;
|
||||
if (!dev->parent) {
|
||||
dev_err(dev, "Missing parent device\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
irq = platform_get_irq(pdev, 0);
|
||||
|
||||
omap = kzalloc(sizeof(*omap), GFP_KERNEL);
|
||||
if (!omap) {
|
||||
ret = -ENOMEM;
|
||||
goto err_disabled;
|
||||
irq = platform_get_irq_byname(pdev, "ohci-irq");
|
||||
if (irq < 0) {
|
||||
dev_err(dev, "OHCI irq failed\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
hcd = usb_create_hcd(&ohci_omap3_hc_driver, &pdev->dev,
|
||||
dev_name(&pdev->dev));
|
||||
res = platform_get_resource_byname(pdev,
|
||||
IORESOURCE_MEM, "ohci");
|
||||
if (!ret) {
|
||||
dev_err(dev, "UHH OHCI get resource failed\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
regs = ioremap(res->start, resource_size(res));
|
||||
if (!regs) {
|
||||
dev_err(dev, "UHH OHCI ioremap failed\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
|
||||
hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev,
|
||||
dev_name(dev));
|
||||
if (!hcd) {
|
||||
ret = -ENOMEM;
|
||||
goto err_create_hcd;
|
||||
dev_err(dev, "usb_create_hcd failed\n");
|
||||
goto err_io;
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, omap);
|
||||
omap->dev = &pdev->dev;
|
||||
omap->port_mode[0] = pdata->port_mode[0];
|
||||
omap->port_mode[1] = pdata->port_mode[1];
|
||||
omap->port_mode[2] = pdata->port_mode[2];
|
||||
omap->es2_compatibility = pdata->es2_compatibility;
|
||||
omap->ohci = hcd_to_ohci(hcd);
|
||||
|
||||
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ohci");
|
||||
|
||||
hcd->rsrc_start = res->start;
|
||||
hcd->rsrc_len = resource_size(res);
|
||||
hcd->regs = regs;
|
||||
|
||||
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
|
||||
if (!hcd->regs) {
|
||||
dev_err(&pdev->dev, "OHCI ioremap failed\n");
|
||||
ret = -ENOMEM;
|
||||
goto err_ioremap;
|
||||
}
|
||||
|
||||
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
|
||||
omap->uhh_base = ioremap(res->start, resource_size(res));
|
||||
if (!omap->uhh_base) {
|
||||
dev_err(&pdev->dev, "UHH ioremap failed\n");
|
||||
ret = -ENOMEM;
|
||||
goto err_uhh_ioremap;
|
||||
}
|
||||
|
||||
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tll");
|
||||
omap->tll_base = ioremap(res->start, resource_size(res));
|
||||
if (!omap->tll_base) {
|
||||
dev_err(&pdev->dev, "TLL ioremap failed\n");
|
||||
ret = -ENOMEM;
|
||||
goto err_tll_ioremap;
|
||||
}
|
||||
|
||||
ret = omap3_start_ohci(omap, hcd);
|
||||
ret = omap_usbhs_enable(dev);
|
||||
if (ret) {
|
||||
dev_dbg(&pdev->dev, "failed to start ohci\n");
|
||||
goto err_start;
|
||||
dev_dbg(dev, "failed to start ohci\n");
|
||||
goto err_end;
|
||||
}
|
||||
|
||||
ohci_hcd_init(omap->ohci);
|
||||
ohci_hcd_init(hcd_to_ohci(hcd));
|
||||
|
||||
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
|
||||
if (ret) {
|
||||
dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret);
|
||||
dev_dbg(dev, "failed to add hcd with err %d\n", ret);
|
||||
goto err_add_hcd;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err_add_hcd:
|
||||
omap3_stop_ohci(omap, hcd);
|
||||
omap_usbhs_disable(dev);
|
||||
|
||||
err_start:
|
||||
iounmap(omap->tll_base);
|
||||
|
||||
err_tll_ioremap:
|
||||
iounmap(omap->uhh_base);
|
||||
|
||||
err_uhh_ioremap:
|
||||
iounmap(hcd->regs);
|
||||
|
||||
err_ioremap:
|
||||
err_end:
|
||||
usb_put_hcd(hcd);
|
||||
|
||||
err_create_hcd:
|
||||
kfree(omap);
|
||||
err_pdata:
|
||||
err_disabled:
|
||||
err_io:
|
||||
iounmap(regs);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -699,24 +215,20 @@ err_disabled:
|
||||
*/
|
||||
static int __devexit ohci_hcd_omap3_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct ohci_hcd_omap3 *omap = platform_get_drvdata(pdev);
|
||||
struct usb_hcd *hcd = ohci_to_hcd(omap->ohci);
|
||||
struct device *dev = &pdev->dev;
|
||||
struct usb_hcd *hcd = dev_get_drvdata(dev);
|
||||
|
||||
usb_remove_hcd(hcd);
|
||||
omap3_stop_ohci(omap, hcd);
|
||||
iounmap(hcd->regs);
|
||||
iounmap(omap->tll_base);
|
||||
iounmap(omap->uhh_base);
|
||||
usb_remove_hcd(hcd);
|
||||
omap_usbhs_disable(dev);
|
||||
usb_put_hcd(hcd);
|
||||
kfree(omap);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void ohci_hcd_omap3_shutdown(struct platform_device *pdev)
|
||||
{
|
||||
struct ohci_hcd_omap3 *omap = platform_get_drvdata(pdev);
|
||||
struct usb_hcd *hcd = ohci_to_hcd(omap->ohci);
|
||||
struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev);
|
||||
|
||||
if (hcd->driver->shutdown)
|
||||
hcd->driver->shutdown(hcd);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user