Make EHCI power and overcurrent polarities configurable. If not set, these new
configurartions keep the default register values so that existing board files
do not have to be changed.
Signed-off-by: Benoît Thébaudeau <benoit.thebaud...@advansee.com>
Cc: Marek Vasut <ma...@denx.de>
Cc: Stefano Babic <sba...@denx.de>
---
.../drivers/usb/host/ehci-mx5.c | 51 ++++++++++++++++++++
.../include/usb/ehci-fsl.h | 10 ++--
2 files changed, 57 insertions(+), 4 deletions(-)
diff --git u-boot-usb-76454b2.orig/drivers/usb/host/ehci-mx5.c
u-boot-usb-76454b2/drivers/usb/host/ehci-mx5.c
index 7da1398..52aeae5 100644
--- u-boot-usb-76454b2.orig/drivers/usb/host/ehci-mx5.c
+++ u-boot-usb-76454b2/drivers/usb/host/ehci-mx5.c
@@ -44,24 +44,33 @@
/* USB_CTRL */
#define MXC_OTG_UCTRL_OWIE_BIT (1 << 27) /* OTG wakeup intr
enable */
#define MXC_OTG_UCTRL_OPM_BIT (1 << 24) /* OTG power mask */
+#define MXC_OTG_UCTRL_O_PWR_POL_BIT (1 << 24) /* OTG power pin
polarity */
#define MXC_H1_UCTRL_H1UIE_BIT (1 << 12) /* Host1 ULPI interrupt
enable */
#define MXC_H1_UCTRL_H1WIE_BIT (1 << 11) /* HOST1 wakeup intr
enable */
#define MXC_H1_UCTRL_H1PM_BIT (1 << 8) /* HOST1 power mask */
+#define MXC_H1_UCTRL_H1_PWR_POL_BIT (1 << 8) /* HOST1 power pin
polarity */
/* USB_PHY_CTRL_FUNC */
+#define MXC_OTG_PHYCTRL_OC_POL_BIT (1 << 9) /* OTG Polarity of
Overcurrent */
#define MXC_OTG_PHYCTRL_OC_DIS_BIT (1 << 8) /* OTG Disable
Overcurrent Event */
+#define MXC_H1_OC_POL_BIT (1 << 6) /* UH1 Polarity of
Overcurrent */
#define MXC_H1_OC_DIS_BIT (1 << 5) /* UH1 Disable
Overcurrent Event */
+#define MXC_OTG_PHYCTRL_PWR_POL_BIT (1 << 3) /* OTG Power Pin
Polarity */
/* USBH2CTRL */
+#define MXC_H2_UCTRL_H2_OC_POL_BIT (1 << 31)
#define MXC_H2_UCTRL_H2_OC_DIS_BIT (1 << 30)
#define MXC_H2_UCTRL_H2UIE_BIT (1 << 8)
#define MXC_H2_UCTRL_H2WIE_BIT (1 << 7)
#define MXC_H2_UCTRL_H2PM_BIT (1 << 4)
+#define MXC_H2_UCTRL_H2_PWR_POL_BIT (1 << 4)
/* USBH3CTRL */
+#define MXC_H3_UCTRL_H3_OC_POL_BIT (1 << 31)
#define MXC_H3_UCTRL_H3_OC_DIS_BIT (1 << 30)
#define MXC_H3_UCTRL_H3UIE_BIT (1 << 8)
#define MXC_H3_UCTRL_H3WIE_BIT (1 << 7)
+#define MXC_H3_UCTRL_H3_PWR_POL_BIT (1 << 4)
/* USB_CTRL_1 */
#define MXC_USB_CTRL_UH1_EXT_CLK_EN (1 << 25)
@@ -151,12 +160,22 @@ int mxc_set_usbcontrol(int port, unsigned int flags)
if (flags & MXC_EHCI_INTERNAL_PHY) {
v = __raw_readl(usbother_base +
MXC_USB_PHY_CTR_FUNC_OFFSET);
+ if (flags & MXC_EHCI_OC_PIN_ACTIVE_LOW)
+ v |= MXC_OTG_PHYCTRL_OC_POL_BIT;
+ else
+ v &= ~MXC_OTG_PHYCTRL_OC_POL_BIT;
if (flags & MXC_EHCI_POWER_PINS_ENABLED)
/* OC/USBPWR is used */
v &= ~MXC_OTG_PHYCTRL_OC_DIS_BIT;
else
/* OC/USBPWR is not used */
v |= MXC_OTG_PHYCTRL_OC_DIS_BIT;
+#ifdef CONFIG_MX51
+ if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH)
+ v |= MXC_OTG_PHYCTRL_PWR_POL_BIT;
+ else
+ v &= ~MXC_OTG_PHYCTRL_PWR_POL_BIT;
+#endif
__raw_writel(v, usbother_base +
MXC_USB_PHY_CTR_FUNC_OFFSET);
@@ -167,6 +186,12 @@ int mxc_set_usbcontrol(int port, unsigned int flags)
else
v |= MXC_OTG_UCTRL_OPM_BIT;
#endif
+#ifdef CONFIG_MX53
+ if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH)
+ v |= MXC_OTG_UCTRL_O_PWR_POL_BIT;
+ else
+ v &= ~MXC_OTG_UCTRL_O_PWR_POL_BIT;
+#endif
__raw_writel(v, usbother_base + MXC_USBCTRL_OFFSET);
}
break;
@@ -186,9 +211,19 @@ int mxc_set_usbcontrol(int port, unsigned int flags)
else
v |= MXC_H1_UCTRL_H1PM_BIT; /* HOST1 power mask used */
#endif
+#ifdef CONFIG_MX53
+ if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH)
+ v |= MXC_H1_UCTRL_H1_PWR_POL_BIT;
+ else
+ v &= ~MXC_H1_UCTRL_H1_PWR_POL_BIT;
+#endif
__raw_writel(v, usbother_base + MXC_USBCTRL_OFFSET);
v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
+ if (flags & MXC_EHCI_OC_PIN_ACTIVE_LOW)
+ v |= MXC_H1_OC_POL_BIT;
+ else
+ v &= ~MXC_H1_OC_POL_BIT;
if (flags & MXC_EHCI_POWER_PINS_ENABLED)
v &= ~MXC_H1_OC_DIS_BIT; /* OC is used */
else
@@ -205,10 +240,18 @@ int mxc_set_usbcontrol(int port, unsigned int flags)
v |= MXC_H2_UCTRL_H2PM_BIT; /* HOST2 power mask used */
#endif
#ifdef CONFIG_MX53
+ if (flags & MXC_EHCI_OC_PIN_ACTIVE_LOW)
+ v |= MXC_H2_UCTRL_H2_OC_POL_BIT;
+ else
+ v &= ~MXC_H2_UCTRL_H2_OC_POL_BIT;
if (flags & MXC_EHCI_POWER_PINS_ENABLED)
v &= ~MXC_H2_UCTRL_H2_OC_DIS_BIT; /* OC is used */
else
v |= MXC_H2_UCTRL_H2_OC_DIS_BIT; /* OC is not used */
+ if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH)
+ v |= MXC_H2_UCTRL_H2_PWR_POL_BIT;
+ else
+ v &= ~MXC_H2_UCTRL_H2_PWR_POL_BIT;
#endif
__raw_writel(v, usbother_base + MXC_USBH2CTRL_OFFSET);
@@ -216,10 +259,18 @@ int mxc_set_usbcontrol(int port, unsigned int flags)
#ifdef CONFIG_MX53
case 3: /* Host 3 ULPI */
v = __raw_readl(usbother_base + MXC_USBH3CTRL_OFFSET);
+ if (flags & MXC_EHCI_OC_PIN_ACTIVE_LOW)
+ v |= MXC_H3_UCTRL_H3_OC_POL_BIT;
+ else
+ v &= ~MXC_H3_UCTRL_H3_OC_POL_BIT;
if (flags & MXC_EHCI_POWER_PINS_ENABLED)
v &= ~MXC_H3_UCTRL_H3_OC_DIS_BIT; /* OC is used */
else
v |= MXC_H3_UCTRL_H3_OC_DIS_BIT; /* OC is not used */
+ if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH)
+ v |= MXC_H3_UCTRL_H3_PWR_POL_BIT;
+ else
+ v &= ~MXC_H3_UCTRL_H3_PWR_POL_BIT;
__raw_writel(v, usbother_base + MXC_USBH3CTRL_OFFSET);
break;
diff --git u-boot-usb-76454b2.orig/include/usb/ehci-fsl.h
u-boot-usb-76454b2/include/usb/ehci-fsl.h
index 4dee5b0..a1438d6 100644
--- u-boot-usb-76454b2.orig/include/usb/ehci-fsl.h
+++ u-boot-usb-76454b2/include/usb/ehci-fsl.h
@@ -266,11 +266,13 @@ struct usb_ehci {
#define MXC_EHCI_INTERFACE_MASK (0xf)
#define MXC_EHCI_POWER_PINS_ENABLED (1 << 5)
-#define MXC_EHCI_TTL_ENABLED (1 << 6)
+#define MXC_EHCI_PWR_PIN_ACTIVE_HIGH (1 << 6)
+#define MXC_EHCI_OC_PIN_ACTIVE_LOW (1 << 7)
+#define MXC_EHCI_TTL_ENABLED (1 << 8)
-#define MXC_EHCI_INTERNAL_PHY (1 << 7)
-#define MXC_EHCI_IPPUE_DOWN (1 << 8)
-#define MXC_EHCI_IPPUE_UP (1 << 9)
+#define MXC_EHCI_INTERNAL_PHY (1 << 9)
+#define MXC_EHCI_IPPUE_DOWN (1 << 10)
+#define MXC_EHCI_IPPUE_UP (1 << 11)
/* Board-specific initialization */
int board_ehci_hcd_init(int port);
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
