Guys:
I'm back! :) This time, it's because my Beagleboard-like platform
hangs hard during boot if I call usb_musb_init().
There are more differences between my platform and Beagleboard in this
area, namely that I'm using a different USB transceiver and I'm on hs0.
But why would the platform hang hard during boot?
Here are what I think are the relevant parts of my config:
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_CAIAQ is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_MUSB_SOC=y
# OMAP 343x high speed USB support
CONFIG_USB_MUSB_HOST=y
# CONFIG_USB_MUSB_PERIPHERAL is not set
# CONFIG_USB_MUSB_OTG is not set
CONFIG_USB_MUSB_HDRC_HCD=y
# CONFIG_MUSB_PIO_ONLY is not set
CONFIG_USB_INVENTRA_DMA=y
CONFIG_USB_MUSB_DEBUG=y
CONFIG_NOP_USB_XCEIV=y
I also created some new mux entries that I need:
omap_cfg_reg(R21_3430_USB0HS_PHY_CLK);
omap_cfg_reg(R23_3430_USB0HS_PHY_STP);
omap_cfg_reg(P23_3430_USB0HS_PHY_DIR);
omap_cfg_reg(R22_3430_USB0HS_PHY_NXT);
omap_cfg_reg(T24_3430_USB0HS_PHY_D0);
omap_cfg_reg(T23_3430_USB0HS_PHY_D1);
omap_cfg_reg(U24_3430_USB0HS_PHY_D2);
omap_cfg_reg(U23_3430_USB0HS_PHY_D3);
omap_cfg_reg(W24_3430_USB0HS_PHY_D4);
omap_cfg_reg(V23_3430_USB0HS_PHY_D5);
omap_cfg_reg(W23_3430_USB0HS_PHY_D6);
omap_cfg_reg(T22_3430_USB0HS_PHY_D7);
I'm even doing this, which I'm not sure is necessary:
ick = clk_get(NULL, "ick");
if (ick) clk_enable(ick);
...
usb_musb_init();
...
Any ideas? Thanks!!
b.g.
--
Bill Gatliff
bgat@xxxxxxxxxxxxxxx
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