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fsl/usb: Add controller version based ULPI and UTMI phy support

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Add support for ULPI and UTMI PHYs based on usb controller
version info read from device-tree

Example of USB Controller versioning info:
Version 1.2 and below : MPC8536, MPC8315, etc
Version 1.6 : P1020, P1010, P2020, P5020, etc
Version 2.2 : PSC9131, PSC9132, P3060, etc

No changes for non-DT users

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ramneek Mehresh
2012-03-20 10:35:50 +05:30
committed by Greg Kroah-Hartman
parent 67c88382e0
commit 58c559e650
6 changed files with 123 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/usb/host/fsl-mph-dr-of.c
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@@ -119,6 +119,39 @@ error:
static const struct of_device_id fsl_usb2_mph_dr_of_match[];
static int usb_get_ver_info(struct device_node *np)
{
int ver = -1;
/*
* returns 1 for usb controller version 1.6
* returns 2 for usb controller version 2.2
* returns 0 otherwise
*/
if (of_device_is_compatible(np, "fsl-usb2-dr")) {
if (of_device_is_compatible(np, "fsl-usb2-dr-v1.6"))
ver = FSL_USB_VER_1_6;
else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.2"))
ver = FSL_USB_VER_2_2;
else /* for previous controller versions */
ver = FSL_USB_VER_OLD;
if (ver > -1)
return ver;
}
if (of_device_is_compatible(np, "fsl-usb2-mph")) {
if (of_device_is_compatible(np, "fsl-usb2-mph-v1.6"))
ver = FSL_USB_VER_1_6;
else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.2"))
ver = FSL_USB_VER_2_2;
else /* for previous controller versions */
ver = FSL_USB_VER_OLD;
}
return ver;
}
static int __devinit fsl_usb2_mph_dr_of_probe(struct platform_device *ofdev)
{
struct device_node *np = ofdev->dev.of_node;
@@ -166,6 +199,14 @@ static int __devinit fsl_usb2_mph_dr_of_probe(struct platform_device *ofdev)
prop = of_get_property(np, "phy_type", NULL);
pdata->phy_mode = determine_usb_phy(prop);
pdata->controller_ver = usb_get_ver_info(np);
if (pdata->have_sysif_regs) {
if (pdata->controller_ver < 0) {
dev_warn(&ofdev->dev, "Could not get controller version\n");
return -ENODEV;
}
}
for (i = 0; i < ARRAY_SIZE(dev_data->drivers); i++) {
if (!dev_data->drivers[i])