[U-Boot] [PATCH v3 1/3] drivers: usb: fsl: add USB ULPI init code
Rajesh Bhagat
rajesh.bhagat at nxp.com
Wed Oct 12 12:41:46 CEST 2016
This adds the required code to set up a ULPI USB port, for
new NXP USB PHY used in QorIQ platforms.
To use this both CONFIG_USB_ULPI and CONFIG_USB_ULPI_VIEWPORT
have to be set in the board configuration file.
Signed-off-by: Rajesh Bhagat <rajesh.bhagat at nxp.com>
---
Changes in v3:
- Rebased to u-boot-usb master
Changes in v2:
- Changes return value from -1 to ulpi_init ret value
drivers/usb/host/ehci-fsl.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 9c32921..85b810d 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -17,6 +17,9 @@
#include <fsl_usb.h>
#include <fdt_support.h>
#include <dm.h>
+#ifdef CONFIG_USB_ULPI
+#include <usb/ulpi.h>
+#endif
#include "ehci.h"
@@ -190,6 +193,10 @@ static int ehci_fsl_init(int index, struct usb_ehci *ehci,
size_t len;
char current_usb_controller[5];
#endif
+#ifdef CONFIG_USB_ULPI
+ int ret;
+ struct ulpi_viewport ulpi_vp;
+#endif
#ifdef CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
char usb_phy[5];
@@ -257,6 +264,20 @@ static int ehci_fsl_init(int index, struct usb_ehci *ehci,
udelay(1000); /* delay required for PHY Clk to appear */
if (!usb_phy_clk_valid(ehci))
return -EINVAL;
+
+#ifdef CONFIG_USB_ULPI
+ ulpi_vp.viewport_addr = (u32)&ehci->ulpi_viewpoint;
+ ulpi_vp.port_num = 0;
+
+ ret = ulpi_init(&ulpi_vp);
+ if (ret) {
+ puts("NXP ULPI viewport init failed\n");
+ return ret;
+ }
+
+ ulpi_set_vbus(&ulpi_vp, 1, 1);
+ ulpi_set_vbus_indicator(&ulpi_vp, 1, 1, 1);
+#endif
out_le32(&(hcor)->or_portsc[0], PORT_PTS_ULPI);
}
--
2.6.2.198.g614a2ac
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