[PATCH] USB: Add isp116x-hcd USB host controller driver

This patch provides an "isp116x-hcd" driver for Philips'
ISP1160/ISP1161 USB host controllers.

The driver:
 - is relatively small, meant for use on embedded platforms.
 - runs usbtests 1-14 without problems for days.
 - has been in use by 6-7 different people on ARM and PPC platforms,
   running a range of devices including USB hubs.
 - supports suspend/resume of both the platform device and the root hub;
   supports remote wakeup of the root hub (but NOT the platform device)
   by USB devices.
 - does NOT support ISO transfers (nobody has asked for them).
 - is PIO-only.

Signed-off-by: Olav Kongas <ok@artecdesign.ee>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 47 insertions, 0 deletions

diff --git a/include/linux/usb_isp116x.h b/include/linux/usb_isp116x.h
new file mode 100644
index 000000000000..5f5a9d9bd6c2
--- /dev/null
+++ b/include/linux/usb_isp116x.h
@@ -0,0 +1,47 @@
+
+/*
+ * Board initialization code should put one of these into dev->platform_data
+ * and place the isp116x onto platform_bus.
+ */
+
+struct isp116x_platform_data {
+        /* Enable internal resistors on downstream ports */
+        unsigned sel15Kres:1;
+        /* Chip's internal clock won't be stopped in suspended state.
+           Setting/unsetting this bit takes effect only if
+           'remote_wakeup_enable' below is not set. */
+        unsigned clknotstop:1;
+        /* On-chip overcurrent protection */
+        unsigned oc_enable:1;
+        /* INT output polarity */
+        unsigned int_act_high:1;
+        /* INT edge or level triggered */
+        unsigned int_edge_triggered:1;
+        /* WAKEUP pin connected - NOT SUPPORTED  */
+        /* unsigned remote_wakeup_connected:1; */
+        /* Wakeup by devices on usb bus enabled */
+        unsigned remote_wakeup_enable:1;
+        /* Switch or not to switch (keep always powered) */
+        unsigned no_power_switching:1;
+        /* Ganged port power switching (0) or individual port
+           power switching (1) */
+        unsigned power_switching_mode:1;
+        /* Given port_power, msec/2 after power on till power good */
+        u8 potpg;
+        /* Hardware reset set/clear. If implemented, this function must:
+           if set == 0,   deassert chip's HW reset pin
+           otherwise,     assert chip's HW reset pin       */
+        void (*reset) (struct device * dev, int set);
+        /* Hardware clock start/stop. If implemented, this function must:
+           if start == 0,    stop the external clock
+           otherwise,        start the external clock
+         */
+        void (*clock) (struct device * dev, int start);
+        /* Inter-io delay (ns). The chip is picky about access timings; it
+           expects at least:
+           150ns delay between consecutive accesses to DATA_REG,
+           300ns delay between access to ADDR_REG and DATA_REG
+           OE, WE MUST NOT be changed during these intervals
+         */
+        void (*delay) (struct device * dev, int delay);
+};