u-boot.git/drivers/usb, branch v2016.03-rc3

usb: ehci: Fix warning on aarch64

2016-02-26T18:45:05+00:00

Fix the following warning on aarch64 introduced by using p2v/v2p
functions in the code:

In file included from ./arch/arm/include/asm/byteorder.h:29:0,
                 from include/compiler.h:125,
                 from include/image.h:19,
                 from include/common.h:88,
                 from drivers/usb/host/ehci-hcd.c:10:
drivers/usb/host/ehci-hcd.c: In function ‘ehci_td_buffer’:
drivers/usb/host/ehci-hcd.c:250:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   td->qt_buffer[idx] = cpu_to_hc32(virt_to_phys((void *)addr));
                                                 ^
include/linux/byteorder/little_endian.h:34:51: note: in definition of macro ‘__cpu_to_le32’
 #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
                                                   ^
drivers/usb/host/ehci-hcd.c:250:24: note: in expansion of macro ‘cpu_to_hc32’
   td->qt_buffer[idx] = cpu_to_hc32(virt_to_phys((void *)addr));

Signed-off-by: Marek Vasut 
Cc: Stephen Warren 
Cc: Tom Rini

fastboot: update error and warning messages

2016-02-24T18:12:33+00:00

Fix the formatting in error messages, and demote one error message
to a warning, as it is only informational.

Signed-off-by: Steve Rae

usb: eth: fix memalign() parameter order

2016-02-24T18:12:33+00:00

The alignment and size were swapped, leading to malloc heap corruption.

On my system, this sometimes caused U-Boot to crash during or after
certain USB Ethernet operations.

Fixes: c8c2797c3810 ("dm: usb: eth: Support driver model with USB Ethernet")
Signed-off-by: Stephen Warren

dfu: usb: f_dfu: Set deferred call for dfu_flush() function

2016-02-24T18:12:32+00:00

This patch fixes situation when one would like to write large file into
medium with the file system (fat, ext4, etc).
This change sets file size limitation to the DFU internal buffer size.

Since u-boot is not supporting interrupts and seek on file systems, it
becomes challenging to store large file appropriately.

To reproduce this error - create large file (around 26 MiB) and sent it
to the target board.

Lets examine the flow of USB transactions:

0. DFU uses EP0 with 64B MPS [Max Packet Size]

1. Send file - OUT (PC->target) - dat_26MiB.img is sent with 4096 B transactions

2. Get status - OUT (PC->target) - wait for DFU_STATE_dfuDNLOAD_IDLE (0x05) sent
				   from target board - IN transaction
				   (target->PC)

3. The whole file content is sent to target - OUT (PC->target) with ZLP [Zero
					      Length Packet]

Now the interesting part starts:

4. OUT (PC->target) Setup transaction (request to share DFU state)

5. IN (target->PC) - reply the current DFU state
	- In the UDC driver the req->completion (with dfu_flush) is called
	  after successful IN transfer.
	- The dfu_flush() (called from req->completion callback) saves the
	  whole file at once (u-boot doesn't support seek on fs).
	  Such operation takes considerable time. When the file
	  is large - e.g. 26MiB - this time may be more than 5 seconds.

6. OUT (PC->target) - ZLP, is send in the same time when dfu_flush()
 writes data to eMMC memory.
 The dfu-util application has hard coded timeout on USB transaction
 completion set to 5 seconds (it uses libusb calls).

When the file to store is large (e.g. 26 MiB) the time needed to write it
may excess the dfu-util timeout and following error message will be displayed:
"unable to read DFU status" on the HOST PC console.

This change is supposed to leverage DFU's part responsible for storing files
on file systems. Other DFU operations - i.e. raw/partition write to NAND and
eMMC should work as before.

The only functional change is the error reporting. When dfu_flush() fails
the u-boot prompt will exit with error information and dfu-util application
exits afterwards as well.

Test HW:
- Odroid XU3 (Exynos5433) - test with large file
- Trats (Exynos4210) - test for regression - eMMC, raw,

Signed-off-by: Lukasz Majewski 
Reported-by: Alex Gdalevich 
Tested-by: Stephen Warren 
Tested-by: Heiko Schocher

usb: ehci: Be explicit about the BE IO accessors

2016-02-24T18:12:32+00:00

Add explicit cpu_to_be32()/be32_to_cpu() conversion to BE EHCI I/O
accessors to align them with their LE counterpart. No functional
change.

Signed-off-by: Marek Vasut 
Cc: Daniel Schwierzeck 
Cc: Hans de Goede

usb: ehci: Clear USBMODE_BE on LE MMIO

2016-02-24T18:12:32+00:00

If the USB EHCI is configured for little endian MMIO, make sure to
clear the USBMODE_BE flag from the USBMODE register.

Signed-off-by: Marek Vasut 
Cc: Daniel Schwierzeck 
Cc: Hans de Goede

usb: ehci: Implement V2P mapping

2016-02-24T18:12:32+00:00

Certain processor architectures, like MIPS, require that the USB
structures and transfer buffers are passed with their PA to the
USB controller. If VA is passed, the USB will not work. Add the
necessary virt_to_phys() calls into the USB EHCI code to make it
work.

Signed-off-by: Marek Vasut 
Cc: Daniel Schwierzeck 
Cc: Hans de Goede

usb: ehci: Use map_physmem in ehci-generic

2016-02-24T18:12:32+00:00

Some architectures, like MIPS, require remapping of the registers.
Add the map_physmem() call to handle it.

Signed-off-by: Marek Vasut 
Cc: Daniel Schwierzeck 
Cc: Hans de Goede

sunxi: H3: Add support for the host usb-phys

2016-02-23T19:59:10+00:00

Add support for phy 1-3.

Signed-off-by: Jelle van der Waa 
[hdegoede@redhat.com: use setclrbits_le32 instead of read-modify-write]
Signed-off-by: Hans de Goede

drivers: usb: ohci-at91: clean up the PLLB code

2016-02-18T20:34:41+00:00

Due to introducing the new PLLB clock handle functions,
use these functions to clean up the PLLB enable/disable code.

Signed-off-by: Wenyou Yang 
Reviewed-by: Andreas Bießmann 
Tested-by: Heiko Schocher