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usb: ehci-mx6: use phy_type from device tree

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Allow using different PHY interfaces for multiple USB controllers. When no
value is set in DT, we fall back to CONFIG_MXC_USB_PORTSC for now to stay
compatible with current board configurations.

This also adds support for the HSIC mode of the i.MX7.

Signed-off-by: Markus Niebel <Markus.Niebel@ew.tq-group.com>
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
This commit is contained in:
Matthias Schiffer 2021-09-20 15:37:25 +02:00 committed by Ramon Fried
parent 656bc27d50
commit e2a41bf638
2 changed files with 24 additions and 2 deletions
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25
drivers/usb/host/ehci-mx6.c
View file

@ -23,6 +23,7 @@
#include <asm/mach-types.h>
#include <power/regulator.h>
#include <linux/usb/otg.h>
#include <linux/usb/phy.h>
#include "ehci.h"
@ -435,6 +436,7 @@ struct ehci_mx6_priv_data {
struct clk clk;
struct phy phy;
enum usb_init_type init_type;
enum usb_phy_interface phy_type;
#if !defined(CONFIG_PHY)
int portnr;
void __iomem *phy_addr;
@ -443,6 +445,24 @@ struct ehci_mx6_priv_data {
#endif
};
static u32 mx6_portsc(enum usb_phy_interface phy_type)
{
switch (phy_type) {
case USBPHY_INTERFACE_MODE_UTMI:
return PORT_PTS_UTMI;
case USBPHY_INTERFACE_MODE_UTMIW:
return PORT_PTS_UTMI | PORT_PTS_PTW;
case USBPHY_INTERFACE_MODE_ULPI:
return PORT_PTS_ULPI;
case USBPHY_INTERFACE_MODE_SERIAL:
return PORT_PTS_SERIAL;
case USBPHY_INTERFACE_MODE_HSIC:
return PORT_PTS_HSIC;
default:
return CONFIG_MXC_USB_PORTSC;
}
}
static int mx6_init_after_reset(struct ehci_ctrl *dev)
{
struct ehci_mx6_priv_data *priv = dev->priv;
@ -479,7 +499,7 @@ static int mx6_init_after_reset(struct ehci_ctrl *dev)
return 0;
setbits_le32(&ehci->usbmode, CM_HOST);
writel(CONFIG_MXC_USB_PORTSC, &ehci->portsc);
writel(mx6_portsc(priv->phy_type), &ehci->portsc);
setbits_le32(&ehci->portsc, USB_EN);
mdelay(10);
@ -641,6 +661,7 @@ static int ehci_usb_probe(struct udevice *dev)
priv->ehci = ehci;
priv->init_type = type;
priv->phy_type = usb_get_phy_mode(dev_ofnode(dev));
#if CONFIG_IS_ENABLED(CLK)
ret = clk_get_by_index(dev, 0, &priv->clk);
@ -690,7 +711,7 @@ static int ehci_usb_probe(struct udevice *dev)
if (priv->init_type == USB_INIT_HOST) {
setbits_le32(&ehci->usbmode, CM_HOST);
writel(CONFIG_MXC_USB_PORTSC, &ehci->portsc);
writel(mx6_portsc(priv->phy_type), &ehci->portsc);
setbits_le32(&ehci->portsc, USB_EN);
}

1
include/usb/ehci-ci.h
View file

@ -23,6 +23,7 @@
#define PORT_PTS_ULPI (2 << 30)
#define PORT_PTS_SERIAL (3 << 30)
#define PORT_PTS_PTW (1 << 28)
#define PORT_PTS_HSIC (1 << 25)
#define PORT_PFSC (1 << 24) /* Defined on Page 39-44 of the mpc5151 ERM */
#define PORT_PTS_PHCD (1 << 23)
#define PORT_PP (1 << 12)