[U-Boot] [PATCH 02/11] usb: ehci: Add 64-bit controller support

[Simon Glass]

From: Vincent Palatin <vpalatin at chromium.org>

On EHCI controller with 64-bit address space support, we must initialize
properly the high word for the PCI bus master accesses.

Signed-off-by: Vincent Palatin <vpalatin at chromium.org>
Signed-off-by: Simon Glass <sjg at chromium.org>
---
 drivers/usb/host/ehci-hcd.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 7f98a63..20309ad 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -870,6 +870,9 @@ int usb_lowlevel_init(int index, void **controller)
 	if (ehci_hcd_init(index, &ehcic[index].hccr, &ehcic[index].hcor))
 		return -1;
 #endif
+	/* Set the high address word (aka segment) for 64-bit controller */
+	if (ehci_readl(&ehcic[index].hccr->cr_hccparams) & 1)
+		ehci_writel(ehcic[index].hcor->or_ctrldssegment, 0);
 
 	qh_list = &ehcic[index].qh_list;
 
-- 
1.7.7.3