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authorVivek Mahajan <vivek.mahajan@freescale.com>2009-05-25 17:23:16 +0530
committerWolfgang Denk <wd@denx.de>2009-06-12 20:47:17 +0200
commit4ef01010aa4799c759d75e67007fdd3a38c88c8a (patch)
tree6a063cc588e2f6bc7e74ef40751dee48538def6d /drivers
parented90d2c87158e5114b6009fa95bb6417e4b27b3e (diff)
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mpc83xx: USB: Reorganized its support
The following patch reorganizes/reworks the USB support for mpc83xx as under:- * Moves the 83xx USB clock init from drivers/usb/host/ehci-fsl.c to cpu/mpx83xx/cpu_init.c * Board specific usb_phy_type is read from the environment * Adds USB EHCI specific structure in include/usb/ehci-fsl.h * Copyrights revamped in most of the following files Signed-off-by: Vivek Mahajan <vivek.mahajan@freescale.com> Signed-off-by: Remy Bohmer <linux@bohmer.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/host/ehci-fsl.c53
1 files changed, 18 insertions, 35 deletions
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 39ef435..bf148c4 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -1,4 +1,6 @@
/*
+ * (C) Copyright 2009 Freescale Semiconductor, Inc.
+ *
* (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB
*
* Author: Tor Krill tor@excito.com
@@ -22,12 +24,10 @@
#include <common.h>
#include <pci.h>
#include <usb.h>
-#include <mpc83xx.h>
#include <asm/io.h>
-#include <asm/bitops.h>
+#include <usb/ehci-fsl.h>
#include "ehci.h"
-#include <usb/ehci-fsl.h>
#include "ehci-core.h"
/*
@@ -38,50 +38,33 @@
*/
int ehci_hcd_init(void)
{
- volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
- uint32_t addr, temp;
+ struct usb_ehci *ehci;
- addr = (uint32_t)&(im->usb[0]);
- hccr = (struct ehci_hccr *)(addr + FSL_SKIP_PCI);
+ 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)));
- /* Configure clock */
- clrsetbits_be32(&(im->clk.sccr), MPC83XX_SCCR_USB_MASK,
- MPC83XX_SCCR_USB_DRCM_11);
-
- /* Confgure interface. */
- temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL));
- out_be32((void *)(addr + FSL_SOC_USB_CTRL), temp
- | REFSEL_16MHZ | UTMI_PHY_EN);
-
- /* Wait for clock to stabilize */
- do {
- temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL));
- udelay(1000);
- } while (!(temp & PHY_CLK_VALID));
-
/* Set to Host mode */
- temp = in_le32((void *)(addr + FSL_SOC_USB_USBMODE));
- out_le32((void *)(addr + FSL_SOC_USB_USBMODE), temp | CM_HOST);
+ setbits_le32((void *)ehci->usbmode, CM_HOST);
- out_be32((void *)(addr + FSL_SOC_USB_SNOOP1), SNOOP_SIZE_2GB);
- out_be32((void *)(addr + FSL_SOC_USB_SNOOP2),
- 0x80000000 | SNOOP_SIZE_2GB);
+ out_be32((void *)ehci->snoop1, SNOOP_SIZE_2GB);
+ out_be32((void *)ehci->snoop2, 0x80000000 | SNOOP_SIZE_2GB);
/* Init phy */
- /* TODO: handle different phys? */
- out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI);
+ if (!strcmp(getenv("usb_phy_type"), "utmi"))
+ out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI);
+ else
+ out_le32(&(hcor->or_portsc[0]), PORT_PTS_ULPI);
/* Enable interface. */
- temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL));
- out_be32((void *)(addr + FSL_SOC_USB_CTRL), temp | USB_EN);
+ setbits_be32((void *)ehci->control, USB_EN);
- out_be32((void *)(addr + FSL_SOC_USB_PRICTRL), 0x0000000c);
- out_be32((void *)(addr + FSL_SOC_USB_AGECNTTHRSH), 0x00000040);
- out_be32((void *)(addr + FSL_SOC_USB_SICTRL), 0x00000001);
+ out_be32((void *)ehci->prictrl, 0x0000000c);
+ out_be32((void *)ehci->age_cnt_limit, 0x00000040);
+ out_be32((void *)ehci->sictrl, 0x00000001);
- temp = in_le32((void *)(addr + FSL_SOC_USB_USBMODE));
+ in_le32((void *)ehci->usbmode);
return 0;
}