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drivers:usb: Add device-tree fixup to identify socs having dual phy

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Identify soc(s) having dual phy so as to add "utmi_dual" as phy_mode
for all these socs. This is required for supporting deel-sleep feature
in linux for usb driver

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
This commit is contained in:
Nikhil Badola 2015-03-11 15:44:23 +05:30 committed by York Sun
parent 98cb0efde8
commit 0c77106095
2 changed files with 38 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/usb/host/ehci-fsl.c
View File

@ -259,7 +259,7 @@ static int fdt_fixup_usb_erratum(void *blob, const char *prop_erratum,
void fdt_fixup_dr_usb(void *blob, bd_t *bd)
{
static const char * const modes[] = { "host", "peripheral", "otg" };
static const char * const phys[] = { "ulpi", "utmi" };
static const char * const phys[] = { "ulpi", "utmi", "utmi_dual" };
int usb_erratum_a006261_off = -1;
int usb_erratum_a007075_off = -1;
int usb_erratum_a007792_off = -1;
@ -303,6 +303,9 @@ void fdt_fixup_dr_usb(void *blob, bd_t *bd)
dr_phy_type = phys[phy_idx];
}
if (has_dual_phy())
dr_phy_type = phys[2];
usb_mode_off = fdt_fixup_usb_mode_phy_type(blob,
dr_mode_type, NULL,
usb_mode_off);
@ -325,6 +328,7 @@ void fdt_fixup_dr_usb(void *blob, bd_t *bd)
if (usb_erratum_a006261_off < 0)
return;
}
if (has_erratum_a007075()) {
usb_erratum_a007075_off = fdt_fixup_usb_erratum
(blob,
@ -333,6 +337,7 @@ 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,

32
include/fsl_usb.h
View File

@ -87,6 +87,33 @@ struct ccsr_usb_phy {
/* USB Erratum Checking code */
#ifdef CONFIG_PPC
static inline bool has_dual_phy(void)
{
u32 svr = get_svr();
u32 soc = SVR_SOC_VER(svr);
switch (soc) {
case SVR_T1023:
case SVR_T1024:
case SVR_T1013:
case SVR_T1014:
return IS_SVR_REV(svr, 1, 0);
case SVR_T1040:
case SVR_T1042:
case SVR_T1020:
case SVR_T1022:
case SVR_T2080:
case SVR_T2081:
return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 1, 1);
case SVR_T4240:
case SVR_T4160:
case SVR_T4080:
return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 2, 0);
}
return false;
}
static inline bool has_erratum_a006261(void)
{
u32 svr = get_svr();
@ -165,6 +192,11 @@ static inline bool has_erratum_a007792(void)
}
#else
static inline bool has_dual_phy(void)
{
return false;
}
static inline bool has_erratum_a006261(void)
{
return false;