/*
- * (C) Copyright 2009 Freescale Semiconductor, Inc.
+ * (C) Copyright 2009, 2011 Freescale Semiconductor, Inc.
*
* (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB
*
#include <usb.h>
#include <asm/io.h>
#include <usb/ehci-fsl.h>
+#include <hwconfig.h>
#include "ehci.h"
-#include "ehci-core.h"
+
+/* Check USB PHY clock valid */
+static int usb_phy_clk_valid(struct usb_ehci *ehci)
+{
+ if (!((in_be32(&ehci->control) & PHY_CLK_VALID) ||
+ in_be32(&ehci->prictrl))) {
+ printf("USB PHY clock invalid!\n");
+ return 0;
+ } else {
+ return 1;
+ }
+}
/*
* Create the appropriate control structures to manage
*
* Excerpts from linux ehci fsl driver.
*/
-int ehci_hcd_init(void)
+int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
struct usb_ehci *ehci;
+ const char *phy_type = NULL;
+ size_t len;
+#ifdef CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
+ char usb_phy[5];
- ehci = (struct usb_ehci *)CONFIG_SYS_MPC8xxx_USB_ADDR;
- hccr = (struct ehci_hccr *)((uint32_t)ehci->caplength);
- hcor = (struct ehci_hcor *)((uint32_t) hccr +
- HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
+ usb_phy[0] = '\0';
+#endif
+
+ ehci = (struct usb_ehci *)CONFIG_SYS_FSL_USB_ADDR;
+ *hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
+ *hcor = (struct ehci_hcor *)((uint32_t) *hccr +
+ HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
/* Set to Host mode */
- setbits_le32((void *)ehci->usbmode, CM_HOST);
+ setbits_le32(&ehci->usbmode, CM_HOST);
- out_be32((void *)ehci->snoop1, SNOOP_SIZE_2GB);
- out_be32((void *)ehci->snoop2, 0x80000000 | SNOOP_SIZE_2GB);
+ out_be32(&ehci->snoop1, SNOOP_SIZE_2GB);
+ out_be32(&ehci->snoop2, 0x80000000 | SNOOP_SIZE_2GB);
/* Init phy */
- if (!strcmp(getenv("usb_phy_type"), "utmi"))
- out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI);
+ if (hwconfig_sub("usb1", "phy_type"))
+ phy_type = hwconfig_subarg("usb1", "phy_type", &len);
else
- out_le32(&(hcor->or_portsc[0]), PORT_PTS_ULPI);
+ phy_type = getenv("usb_phy_type");
+
+ if (!phy_type) {
+#ifdef CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
+ /* if none specified assume internal UTMI */
+ strcpy(usb_phy, "utmi");
+ phy_type = usb_phy;
+#else
+ printf("WARNING: USB phy type not defined !!\n");
+ return -1;
+#endif
+ }
- /* Enable interface. */
- setbits_be32((void *)ehci->control, USB_EN);
+ if (!strcmp(phy_type, "utmi")) {
+#if defined(CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY)
+ setbits_be32(&ehci->control, PHY_CLK_SEL_UTMI);
+ setbits_be32(&ehci->control, UTMI_PHY_EN);
+ udelay(1000); /* delay required for PHY Clk to appear */
+#endif
+ out_le32(&(*hcor)->or_portsc[0], PORT_PTS_UTMI);
+ setbits_be32(&ehci->control, USB_EN);
+ } else {
+ setbits_be32(&ehci->control, PHY_CLK_SEL_ULPI);
+ clrsetbits_be32(&ehci->control, UTMI_PHY_EN, USB_EN);
+ udelay(1000); /* delay required for PHY Clk to appear */
+ if (!usb_phy_clk_valid(ehci))
+ return -EINVAL;
+ out_le32(&(*hcor)->or_portsc[0], PORT_PTS_ULPI);
+ }
- out_be32((void *)ehci->prictrl, 0x0000000c);
- out_be32((void *)ehci->age_cnt_limit, 0x00000040);
- out_be32((void *)ehci->sictrl, 0x00000001);
+ out_be32(&ehci->prictrl, 0x0000000c);
+ out_be32(&ehci->age_cnt_limit, 0x00000040);
+ out_be32(&ehci->sictrl, 0x00000001);
- in_le32((void *)ehci->usbmode);
+ in_le32(&ehci->usbmode);
return 0;
}
* Destroy the appropriate control structures corresponding
* the the EHCI host controller.
*/
-int ehci_hcd_stop(void)
+int ehci_hcd_stop(int index)
{
return 0;
}