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diff -Nru a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
--- a/arch/mips/au1000/common/irq.c Fri Feb 27 14:22:51 2004
+++ b/arch/mips/au1000/common/irq.c Fri Feb 27 14:22:51 2004
@@ -458,7 +458,14 @@
intc0_req0 |= au_readl(IC0_REQ0INT);
if (!intc0_req0) return;
-
+#if 0
+ /*
+ * This is no longer required. The find first bit operation
+ * is almost as fast at finding the correct interrupt, whereas
+ * leaving this in adds a small amount of overhead to all other
+ * interrupts and therefore induces more latency which may
+ * actually cause USB problems.
+ */
/*
* Because of the tight timing of SETUP token to reply
* transactions, the USB devices-side packet complete
@@ -469,7 +476,7 @@
do_IRQ(AU1000_USB_DEV_REQ_INT, regs);
return;
}
-
+#endif
irq = au_ffs(intc0_req0) - 1;
intc0_req0 &= ~(1<<irq);
do_IRQ(irq, regs);
diff -Nru a/arch/mips/defconfig-bosporus b/arch/mips/defconfig-bosporus
--- a/arch/mips/defconfig-bosporus Fri Feb 27 14:22:51 2004
+++ b/arch/mips/defconfig-bosporus Fri Feb 27 14:22:51 2004
@@ -606,8 +606,6 @@
# CONFIG_SERIAL_TXX9_CONSOLE is not set
CONFIG_AU1X00_UART=y
CONFIG_AU1X00_SERIAL_CONSOLE=y
-# CONFIG_AU1X00_USB_TTY is not set
-# CONFIG_AU1X00_USB_RAW is not set
# CONFIG_TXX927_SERIAL is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
diff -Nru a/arch/mips/defconfig-db1000 b/arch/mips/defconfig-db1000
--- a/arch/mips/defconfig-db1000 Fri Feb 27 14:22:51 2004
+++ b/arch/mips/defconfig-db1000 Fri Feb 27 14:22:51 2004
@@ -509,8 +509,6 @@
# CONFIG_SERIAL_TXX9_CONSOLE is not set
CONFIG_AU1X00_UART=y
CONFIG_AU1X00_SERIAL_CONSOLE=y
-# CONFIG_AU1X00_USB_TTY is not set
-# CONFIG_AU1X00_USB_RAW is not set
# CONFIG_TXX927_SERIAL is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
diff -Nru a/arch/mips/defconfig-db1100 b/arch/mips/defconfig-db1100
--- a/arch/mips/defconfig-db1100 Fri Feb 27 14:22:51 2004
+++ b/arch/mips/defconfig-db1100 Fri Feb 27 14:22:51 2004
@@ -516,8 +516,6 @@
# CONFIG_SERIAL_TXX9_CONSOLE is not set
CONFIG_AU1X00_UART=y
CONFIG_AU1X00_SERIAL_CONSOLE=y
-# CONFIG_AU1X00_USB_TTY is not set
-# CONFIG_AU1X00_USB_RAW is not set
# CONFIG_TXX927_SERIAL is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
diff -Nru a/arch/mips/defconfig-db1500 b/arch/mips/defconfig-db1500
--- a/arch/mips/defconfig-db1500 Fri Feb 27 14:22:51 2004
+++ b/arch/mips/defconfig-db1500 Fri Feb 27 14:22:51 2004
@@ -506,8 +506,6 @@
# CONFIG_SERIAL_TXX9_CONSOLE is not set
CONFIG_AU1X00_UART=y
CONFIG_AU1X00_SERIAL_CONSOLE=y
-# CONFIG_AU1X00_USB_TTY is not set
-# CONFIG_AU1X00_USB_RAW is not set
# CONFIG_TXX927_SERIAL is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
diff -Nru a/arch/mips/defconfig-pb1000 b/arch/mips/defconfig-pb1000
--- a/arch/mips/defconfig-pb1000 Fri Feb 27 14:22:51 2004
+++ b/arch/mips/defconfig-pb1000 Fri Feb 27 14:22:51 2004
@@ -569,8 +569,6 @@
# CONFIG_SERIAL_TXX9_CONSOLE is not set
CONFIG_AU1X00_UART=y
CONFIG_AU1X00_SERIAL_CONSOLE=y
-# CONFIG_AU1X00_USB_TTY is not set
-# CONFIG_AU1X00_USB_RAW is not set
# CONFIG_TXX927_SERIAL is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
diff -Nru a/arch/mips/defconfig-pb1100 b/arch/mips/defconfig-pb1100
--- a/arch/mips/defconfig-pb1100 Fri Feb 27 14:22:51 2004
+++ b/arch/mips/defconfig-pb1100 Fri Feb 27 14:22:51 2004
@@ -515,8 +515,6 @@
# CONFIG_SERIAL_TXX9_CONSOLE is not set
CONFIG_AU1X00_UART=y
CONFIG_AU1X00_SERIAL_CONSOLE=y
-# CONFIG_AU1X00_USB_TTY is not set
-# CONFIG_AU1X00_USB_RAW is not set
# CONFIG_TXX927_SERIAL is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
diff -Nru a/arch/mips/defconfig-pb1500 b/arch/mips/defconfig-pb1500
--- a/arch/mips/defconfig-pb1500 Fri Feb 27 14:22:51 2004
+++ b/arch/mips/defconfig-pb1500 Fri Feb 27 14:22:51 2004
@@ -619,8 +619,6 @@
# CONFIG_SERIAL_TXX9_CONSOLE is not set
CONFIG_AU1X00_UART=y
CONFIG_AU1X00_SERIAL_CONSOLE=y
-# CONFIG_AU1X00_USB_TTY is not set
-# CONFIG_AU1X00_USB_RAW is not set
# CONFIG_TXX927_SERIAL is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
diff -Nru a/drivers/char/Config.in b/drivers/char/Config.in
--- a/drivers/char/Config.in Fri Feb 27 14:22:51 2004
+++ b/drivers/char/Config.in Fri Feb 27 14:22:51 2004
@@ -91,14 +91,6 @@
if [ "$CONFIG_AU1X00_UART" = "y" ]; then
bool ' Enable Au1x00 serial console' CONFIG_AU1X00_SERIAL_CONSOLE
fi
- dep_tristate ' Au1x00 USB TTY Device support' CONFIG_AU1X00_USB_TTY $CONFIG_SOC_AU1X00
- if [ "$CONFIG_AU1000_USB_TTY" != "y" ]; then
- dep_tristate ' Au1x00 USB Raw Device support' CONFIG_AU1X00_USB_RAW $CONFIG_SOC_AU1X00
- fi
- if [ "$CONFIG_AU1X00_USB_TTY" != "n" -o \
- "$CONFIG_AU1X00_USB_RAW" != "n" ]; then
- define_bool CONFIG_AU1X00_USB_DEVICE y
- fi
fi
bool ' TXx927 SIO support' CONFIG_TXX927_SERIAL
if [ "$CONFIG_TXX927_SERIAL" = "y" ]; then
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