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drivers: usb: fsl: Check USB Erratum A007792 applicability

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Check USB Erratum A007792 applicability. If applicable, add
corresponding  property in the device tree via device tree fixup

Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
This commit is contained in:
Nikhil Badola 2014-10-30 10:11:28 +05:30 committed by York Sun
parent ecfc19f31f
commit da5ce448c7
2 changed files with 32 additions and 0 deletions
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9
drivers/usb/host/ehci-fsl.c
View File

@ -262,6 +262,7 @@ void fdt_fixup_dr_usb(void *blob, bd_t *bd)
static const char * const phys[] = { "ulpi", "utmi" };
int usb_erratum_a006261_off = -1;
int usb_erratum_a007075_off = -1;
int usb_erratum_a007792_off = -1;
int usb_mode_off = -1;
int usb_phy_off = -1;
char str[5];
@ -332,6 +333,14 @@ void fdt_fixup_dr_usb(void *blob, bd_t *bd)
if (usb_erratum_a007075_off < 0)
return;
}
if (has_erratum_a007792()) {
usb_erratum_a007792_off = fdt_fixup_usb_erratum
(blob,
"fsl,usb-erratum-a007792",
usb_erratum_a007792_off);
if (usb_erratum_a007792_off < 0)
return;
}
}
}
#endif

23
include/fsl_usb.h
View File

@ -145,6 +145,25 @@ static inline bool has_erratum_a007798(void)
return SVR_SOC_VER(get_svr()) == SVR_T4240 &&
IS_SVR_REV(get_svr(), 2, 0);
}
static inline bool has_erratum_a007792(void)
{
u32 svr = get_svr();
u32 soc = SVR_SOC_VER(svr);
switch (soc) {
case SVR_T4240:
case SVR_T4160:
return IS_SVR_REV(svr, 2, 0);
case SVR_T1040:
return IS_SVR_REV(svr, 1, 0);
case SVR_T2080:
case SVR_T2081:
return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 1, 1);
}
return false;
}
#else
static inline bool has_erratum_a006261(void)
{
@ -161,5 +180,9 @@ static inline bool has_erratum_a007798(void)
return false;
}
static inline bool has_erratum_a007792(void)
{
return false;
}
#endif
#endif /*_ASM_FSL_USB_H_ */