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 --- drivers/usb/host/ehci-mx6.c | 25 +++++++++++++++++++++++-- include/usb/ehci-ci.h | 1 + 2 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c index c3e4170513e..1bd6147c76a 100644 --- a/drivers/usb/host/ehci-mx6.c +++ b/drivers/usb/host/ehci-mx6.c @@ -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); }
diff --git a/include/usb/ehci-ci.h b/include/usb/ehci-ci.h index bf5d26faa53..2cdb3146e86 100644 --- a/include/usb/ehci-ci.h +++ b/include/usb/ehci-ci.h @@ -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)