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usb: chipidea: introduce ci_platform_configure 

It is used to configure controller parameters according to
platform data, like speed, stream mode, etc, both host and
device's initialization need it, most of code are the
same for both roles, with this new interface, it can reduce
the duplicated code and be easy to maintain in future.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
This commit is contained in:
Peter Chen 2015-03-17 10:40:50 +08:00
parent 9d2effea12
commit bf9c85e78d
3 changed files with 27 additions and 18 deletions
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2
drivers/usb/chipidea/ci.h
View File

@ -427,4 +427,6 @@ u8 hw_port_test_get(struct ci_hdrc *ci);
int hw_wait_reg(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask,
u32 value, unsigned int timeout_ms);
void ci_platform_configure(struct ci_hdrc *ci);
#endif /* __DRIVERS_USB_CHIPIDEA_CI_H */

34
drivers/usb/chipidea/core.c
View File

@ -405,6 +405,28 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
return ret;
}
/**
* ci_platform_configure: do controller configure
* @ci: the controller
*
*/
void ci_platform_configure(struct ci_hdrc *ci)
{
if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
if (ci->platdata->flags & CI_HDRC_FORCE_FULLSPEED) {
if (ci->hw_bank.lpm)
hw_write(ci, OP_DEVLC, DEVLC_PFSC, DEVLC_PFSC);
else
hw_write(ci, OP_PORTSC, PORTSC_PFSC, PORTSC_PFSC);
}
if (ci->platdata->flags & CI_HDRC_SET_NON_ZERO_TTHA)
hw_write(ci, OP_TTCTRL, TTCTRL_TTHA_MASK, TTCTRL_TTHA);
}
/**
* hw_controller_reset: do controller reset
* @ci: the controller
@ -449,16 +471,6 @@ int hw_device_reset(struct ci_hdrc *ci)
ci->platdata->notify_event(ci,
CI_HDRC_CONTROLLER_RESET_EVENT);
if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
if (ci->platdata->flags & CI_HDRC_FORCE_FULLSPEED) {
if (ci->hw_bank.lpm)
hw_write(ci, OP_DEVLC, DEVLC_PFSC, DEVLC_PFSC);
else
hw_write(ci, OP_PORTSC, PORTSC_PFSC, PORTSC_PFSC);
}
/* USBMODE should be configured step by step */
hw_write(ci, OP_USBMODE, USBMODE_CM, USBMODE_CM_IDLE);
hw_write(ci, OP_USBMODE, USBMODE_CM, USBMODE_CM_DC);
@ -471,6 +483,8 @@ int hw_device_reset(struct ci_hdrc *ci)
return -ENODEV;
}
ci_platform_configure(ci);
return 0;
}

9
drivers/usb/chipidea/host.c
View File

@ -153,14 +153,7 @@ static int host_start(struct ci_hdrc *ci)
}
}
if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
if (ci->platdata->flags & CI_HDRC_FORCE_FULLSPEED)
hw_write(ci, OP_PORTSC, PORTSC_PFSC, PORTSC_PFSC);
if (ci->platdata->flags & CI_HDRC_SET_NON_ZERO_TTHA)
hw_write(ci, OP_TTCTRL, TTCTRL_TTHA_MASK, TTCTRL_TTHA);
ci_platform_configure(ci);
return ret;