Current programming takes the default vaule of HSUSB port status
from UHH_HOSTCONFIG and write back the same to UHH_HOSTCONFIG
without updating.
This patch updates the port status based on board configuration.
Without this patch EHCI port becomes unusable on OMAP3EVM when a
USB HDD is connected to it through a HS HUB and we get below
error message,
"hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?"
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@xxxxxx>
Signed-off-by: Anand Gadiyar <gadiyar@xxxxxx>
---
Patch created against ehci branch.
drivers/usb/host/ehci-omap.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index 45b8a7c..f25e1b1 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -108,6 +108,9 @@
#define OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN (1 << 3)
#define OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN (1 << 4)
#define OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN (1 << 5)
+#define OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS (1 << 8)
+#define OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS (1 << 9)
+#define OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS (1 << 10)
#define OMAP_UHH_DEBUG_CSR (0x44)
@@ -335,6 +338,13 @@ static int omap_start_ehc(struct ehci_hcd_omap *omap, struct usb_hcd *hcd)
| OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN);
reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
+ if (omap->port_mode[0] == EHCI_HCD_OMAP_MODE_UNKNOWN)
+ reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
+ if (omap->port_mode[1] == EHCI_HCD_OMAP_MODE_UNKNOWN)
+ reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
+ if (omap->port_mode[2] == EHCI_HCD_OMAP_MODE_UNKNOWN)
+ reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
+
/* Bypass the TLL module for PHY mode operation */
if (omap_rev() <= OMAP3430_REV_ES2_1) {
dev_dbg(omap->dev, "OMAP3 ES version <= ES2.1 \n");
--
1.6.2.4
--
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