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Commit b164935b authored by Aaro Koskinen's avatar Aaro Koskinen Committed by Greg Kroah-Hartman
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staging: MIPS: add Octeon USB HCD support 



Add support for Octeon USB HCD. Tested on EdgeRouter Lite with USB
mass storage.

The driver has been extracted from GPL sources of EdgeRouter Lite firmware
(based on Linux 2.6.32.13). Some minor fixes and cleanups have been done
to make it work with 3.10-rc3.

$ uname -a
Linux (none) 3.10.0-rc3-edge-00005-g86cb5bc #41 SMP PREEMPT Sat Jun 1 20:41:46 EEST 2013 mips64 GNU/Linux
$ modprobe octeon-usb
[   37.971683] octeon_usb: module is from the staging directory, the quality is unknown, you have been warned.
[   37.983649] OcteonUSB: Detected 1 ports
[   37.999360] OcteonUSB OcteonUSB.0: Octeon Host Controller
[   38.004847] OcteonUSB OcteonUSB.0: new USB bus registered, assigned bus number 1
[   38.012332] OcteonUSB OcteonUSB.0: irq 122, io mem 0x00000000
[   38.019970] hub 1-0:1.0: USB hub found
[   38.023851] hub 1-0:1.0: 1 port detected
[   38.028101] OcteonUSB: Registered HCD for port 0 on irq 122
[   38.391443] usb 1-1: new high-speed USB device number 2 using OcteonUSB
[   38.586922] usb-storage 1-1:1.0: USB Mass Storage device detected
[   38.597375] scsi0 : usb-storage 1-1:1.0
[   39.604111] scsi 0:0:0:0: Direct-Access              USB DISK 2.0     PMAP PQ: 0 ANSI: 4
[   39.619113] sd 0:0:0:0: [sda] 7579008 512-byte logical blocks: (3.88 GB/3.61 GiB)
[   39.630696] sd 0:0:0:0: [sda] Write Protect is off
[   39.635945] sd 0:0:0:0: [sda] No Caching mode page present
[   39.641464] sd 0:0:0:0: [sda] Assuming drive cache: write through
[   39.651341] sd 0:0:0:0: [sda] No Caching mode page present
[   39.656917] sd 0:0:0:0: [sda] Assuming drive cache: write through
[   39.664296]  sda: sda1 sda2
[   39.675574] sd 0:0:0:0: [sda] No Caching mode page present
[   39.681093] sd 0:0:0:0: [sda] Assuming drive cache: write through
[   39.687223] sd 0:0:0:0: [sda] Attached SCSI removable disk

Signed-off-by: default avatarAaro Koskinen <aaro.koskinen@iki.fi>
Cc: David Daney <ddaney.cavm@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 51dd7d29

drivers/staging/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -62,6 +62,8 @@ source "drivers/staging/line6/Kconfig" 


source "drivers/staging/octeon/Kconfig"



source "drivers/staging/octeon-usb/Kconfig"



source "drivers/staging/serqt_usb2/Kconfig"



source "drivers/staging/vt6655/Kconfig"

drivers/staging/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ obj-$(CONFIG_LINE6_USB) += line6/ 
obj-$(CONFIG_NETLOGIC_XLR_NET)	+= netlogic/

obj-$(CONFIG_USB_SERIAL_QUATECH2)	+= serqt_usb2/

obj-$(CONFIG_OCTEON_ETHERNET)	+= octeon/

obj-$(CONFIG_OCTEON_USB)	+= octeon-usb/

obj-$(CONFIG_VT6655)		+= vt6655/

obj-$(CONFIG_VT6656)		+= vt6656/

obj-$(CONFIG_VME_BUS)		+= vme/

drivers/staging/octeon-usb/Kconfig

0 → 100644
+10 −0
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config OCTEON_USB

	tristate "Cavium Networks Octeon USB support"

	depends on CPU_CAVIUM_OCTEON && USB

	help

	  This driver supports USB host controller on some Cavium

	  Networks' products in the Octeon family.



	  To compile this driver as a module, choose M here. The module

	  will be called octeon-usb.

drivers/staging/octeon-usb/Makefile

0 → 100644
+3 −0
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obj-${CONFIG_OCTEON_USB} := octeon-usb.o

octeon-usb-y := octeon-hcd.o

octeon-usb-y += cvmx-usb.o

drivers/staging/octeon-usb/TODO

0 → 100644
+11 −0
Original line number Diff line number Diff line 
This driver is functional and has been tested on EdgeRouter Lite with

USB mass storage.



TODO:

	- kernel coding style

	- checkpatch warnings

	- dead code elimination

	- device tree bindings

	- possibly eliminate the extra "hardware abstraction layer"



Contact: Aaro Koskinen <aaro.koskinen@iki.fi>