diff options
| author | Ramneek Mehresh <ramneek.mehresh@freescale.com> | 2011-03-23 15:20:43 +0530 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-09-29 19:01:03 -0500 |
| commit | 1b719e66548a50ac763eebf9513bf1e58e8fb6ff (patch) | |
| tree | 7812fe120bb791f5515985ef0dd5ec1e91673247 /drivers | |
| parent | 1d5e7fb403257d62f0f2419cb83fdf6b0f02f215 (diff) | |
| download | u-boot-imx-1b719e66548a50ac763eebf9513bf1e58e8fb6ff.zip u-boot-imx-1b719e66548a50ac763eebf9513bf1e58e8fb6ff.tar.gz u-boot-imx-1b719e66548a50ac763eebf9513bf1e58e8fb6ff.tar.bz2 | |
powerpc/85xx: Add ULPI and UTMI USB Phy support for P1010/P1014
Add UTMI and ULPI PHY support for USB controller on qoriq series of
processors with internal UTMI PHY implemented, for example P1010/P1014
- Use both getenv() and hwconfig to get USB phy type till getenv()
is depricated
- Introduce CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY to specify if soc
has internal UTMI phy
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Acked-by: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 6e0043a..5a65d92 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2009 Freescale Semiconductor, Inc. + * (C) Copyright 2009, 2011 Freescale Semiconductor, Inc. * * (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB * @@ -26,6 +26,7 @@ #include <usb.h> #include <asm/io.h> #include <usb/ehci-fsl.h> +#include <hwconfig.h> #include "ehci.h" #include "ehci-core.h" @@ -39,6 +40,11 @@ int ehci_hcd_init(void) { struct usb_ehci *ehci; + char usb_phy[5]; + const char *phy_type = NULL; + size_t len; + + usb_phy[0] = '\0'; ehci = (struct usb_ehci *)CONFIG_SYS_FSL_USB_ADDR; hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength); @@ -52,10 +58,37 @@ int ehci_hcd_init(void) 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 + 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 + } + + 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); + } else { +#if defined(CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY) + clrbits_be32(&ehci->control, UTMI_PHY_EN); + setbits_be32(&ehci->control, PHY_CLK_SEL_ULPI); + udelay(1000); /* delay required for PHY Clk to appear */ +#endif out_le32(&(hcor->or_portsc[0]), PORT_PTS_ULPI); + } /* Enable interface. */ setbits_be32(&ehci->control, USB_EN); |