Commit Graph

4544 Commits

Author SHA1 Message Date
Simon Glass
af1bc0cf46 log: Plumb logging into the init sequence
Set up logging both before and after relocation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-12-07 15:17:00 -05:00
Simon Glass
ef11ed8239 log: Add a test command
Add a command which exercises the logging system.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-07 15:17:00 -05:00
Simon Glass
c6d47535df log: Add a console driver
It is useful to display log messages on the console. Add a simple driver
to handle this.

Note that this driver outputs to the console, which may be serial or
video. It does not specifically select serial output.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-12-07 15:17:00 -05:00
Simon Glass
e9c8d49d54 log: Add an implementation of logging
Add the logging header file and implementation with some configuration
options to control it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-07 15:17:00 -05:00
Simon Glass
c5404b64fb Drop the log buffer
This does not appear to be used by any boards. Before introducing a new
log system, remove this old one.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-12-07 15:17:00 -05:00
Simon Glass
0ad0458c76 usb: Correct use of debug()
With clang this gives a warning because hubsts appears to be used before
it is set, even if ultimately it is not used. Simplify the code to avoid
this problem.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-07 15:17:00 -05:00
Simon Glass
64e9b4f346 Revert "sandbox: Drop special case console code for sandbox"
While sandbox works OK without the special-case code, it does result in
console output being stored in the pre-console buffer while sandbox starts
up. If there is a crash or a problem then there is no indication of what
is going on.

For ease of debugging it seems better to revert this change also.

This reverts commit d8c6fb8ced.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-07 15:17:00 -05:00
Heinrich Schuchardt
2614a20847 common: command: tempory buffer should have size of command line buf
When copying the command line buffer the target array should
at least have the same size.

Cf. definition of console_buffer in common/cli_readline.c.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2017-11-29 22:30:50 -05:00
Tom Rini
53fe692652 Merge git://git.denx.de/u-boot-usb 2017-11-28 09:30:27 -05:00
Tom Rini
7fef459096 spl: TI: Do not default to SPL_FIT_IMAGE_TINY being enabled
This option prevents booting on am335x_evm at least along with most
likely other platforms.

Fixes: 337bbb6297 ("spl: fit: add SPL_FIT_IMAGE_TINY config to reduce code-size")
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-11-27 23:05:11 -05:00
Philipp Tomsich
883946e8e7 usb: hub: identify the hub-device to usb_hub_reset_devices
When usb_hub_reset_devices is called, it should be passed both an
indicator which hub it should operate on and what port number (local
to that hub) should be reset.

Previously, the usb_hub.c code did not include such context and
always started resets from port number 1, performing multiple
reset-requests for the same devices:

       /*
        * Reset any devices that may be in a bad state when applying
        * the power.  This is a __weak function.  Resetting of the devices
        * should occur in the board file of the device.
        */
       for (i = 0; i < dev->maxchild; i++)
              usb_hub_reset_devices(i + 1);

This adds an additional 'hub' parameter to usb_hub_reset_devices
that provides the context to fully qualify the port-number in.

Existing implementations are changed to accept and ignore the new
parameter.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Jakob Unterwurzacher <jakob.unterwurzacher@theobroma-systems.com>
2017-11-26 02:22:36 +01:00
Philipp Tomsich
337bbb6297 spl: fit: add SPL_FIT_IMAGE_TINY config to reduce code-size
A minor code-size increase from the changes for tracking the os-type
of FIT images and from infrastructure for recording the loadables into
the the loaded FDT, broke the builds for sun50i and some OMAP2+ devices.

This change adds a new config option (enabled by default for
MACH_SUN50I, MACH_SUN50I_H5 and ARCH_OMAP2PLUS) that does skips these
processing steps (bringing code size down to below the limit
again). The os-type is not evaluated, but assumed to be IH_OS_UBOOT
(i.e. taking the code-paths intended for backward-compatibility).

Note that enabling this config option precludes any useful downstream
processing, such as utilising a special calling convention for ATF or
OPTEE, based on the os-type of the loadables.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-26 00:39:08 +01:00
Philipp Tomsich
506c428ec8 spl: atf: drop the SPL_ATF_TEXT_BASE configuration item
The SPL_ATF_TEXT_BASE configuration item has become obsolete.
Remove it from Kconfig.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-26 00:39:07 +01:00
Philipp Tomsich
aa122f6b3d spl: rename config item SPL_ATF_SUPPORT to SPL_ATF
Having CONFIG_SPL_ATF seems more natural.
Rename it, while it it is easy and there's few boards that use it
(only RK3399 and RK3368 boards).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-26 00:39:07 +01:00
Philipp Tomsich
1d3790905d spl: atf: introduce spl_invoke_atf and make bl31_entry private
This adds a new interface spl_invoke_atf() that takes a spl_image_info
argument and then derives the necessary parameters for the ATF entry.
Based on the additional information recorded (into /fit-images) from
the FIT loadables, we can now easily locate the next boot stage.

We now pass a pointer to a FDT as the platform-specific parameter
pointer to ATF (so we don't run into the future headache of every
board/platform defining their own proprietary tag-structure), as
FDT access is already available in ATF.

With the necessary infrastructure in place, we can now update the
support for the ARM Trusted Firmware to dispatch into the
spl_invoke_atf function only if a IH_OS_ARM_TRUSTED_FIRMWARE image is
loaded.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-26 00:39:07 +01:00
Philipp Tomsich
a616c783f2 spl: fit: implement recording of loadables into /fit-images
If a FDT was loaded (e.g. to append it to U-Boot image), we store it's
address and record information for all loadables into this FDT.  This
allows us to easily keep track of images for multiple privilege levels
(e.g. with ATF) or of firmware images preloaded into temporary
locations (e.g. PMU firmware that may overlap the SPL stage).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-26 00:39:07 +01:00
Philipp Tomsich
9f45aeb937 spl: fit: implement fdt_record_loadable
During the loading of more complex FIT images (e.g. when the invoked
next stage needs to find additional firmware for a power-management
core... or if there are multiple images for different privilege levels
started in parallel), it is helpful to create a record of what images
are loaded where: if a FDT is loaded for one of the next stages, it
can be used to convey the status and location of loadables.

This adds a fdt_record_loadable() function that can be invoked to
record the status of each loadable below the /fit-images path.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-26 00:39:07 +01:00
Philipp Tomsich
d879616e9e spl: fit: simplify logic for FDT loading for non-OS boots
To better support bootin through an ATF or OPTEE, we need to
streamline some of the logic for when the FDT is appended to an image:
depending on the image type, we'd like to append the FDT not at all
(the case for the OS boot), to the 'firmware' image (if it is a
U-Boot) or to one of the loadables (if the 'firmware' is an ATF, an
OPTEE, or some other image-type and U-Boot is listed in the
loadabled).

To achieve this goal, we drop the os_boot flag and track the type of
image loaded.  If it is of type IH_OS_U_BOOT, we append the FDT.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: York Sun <york.sun@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-26 00:39:07 +01:00
Philipp Tomsich
4914af1286 image: add IH_OS_ARM_TRUSTED_FIRMWARE for ARM Trusted Firmware
To boot on ARMv8 systems with ARM Trusted Firmware, we need to
assemble an ATF-specific parameter structure and also provide the
address of the images started by ATF (e.g. BL3-3, which may be the
full U-Boot).

To allow us to identify an ARM Trusted Firmware contained in a FIT
image, this adds the necessary definitions.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-26 00:39:06 +01:00
Faiz Abbas
8502f9f6d7 thermal: ti-bandgap: Add support for temperature sensor
The dra7xx series of SOCs contain a temperature sensor and an
associated analog-to-digital converter (ADC) which produces
an output which is proportional to the SOC temperature.
Add support for this temperature sensor.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-21 08:03:38 -05:00
Heinrich Schuchardt
a874cac3b4 malloc: don't compare pointers to 0
0 is not a pointer. So do not compare pointers to 0.

Do not return 0 from functions with a pointer return
type.

Problem identified with Coccinelle.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-11-20 20:18:39 -05:00
Tom Rini
29c4992256 Merge git://git.denx.de/u-boot-dm 2017-11-19 20:35:45 -05:00
Tom Rini
b6251db8c3 Kconfig: Introduce USE_BOOTCOMMAND and migrate BOOTCOMMAND
We first introduce CONFIG_USE_BOOTCOMMAND, similar to
CONFIG_USE_BOOTARGS.  We then migrate CONFIG_BOOTCOMMAND for most
CONFIG_DISTRO_DEFAULT users.  In some cases platforms have a complex
scheme around this usage, and these have been defered for the moment so
that platform maintainers can work on a migration plan.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2017-11-17 16:37:26 -05:00
André Draszik
3fe3839acc SPL: fix printing of image name
The maximum length of the name of the image is
obviously not sizeof(), which is just the
length of a pointer, but IH_NMLEN.

fixes: 62cf11c092
("SPL: Limit image name print length")

Signed-off-by: André Draszik <adraszik@tycoint.com>
Acked-by: Simon Glass <sjg@chromium.org>
2017-11-16 19:10:25 -07:00
Soeren Moch
be135cc5eb Revert "console: simplify puts()"
This reverts commit c61d0009fe.

A tbs2910 board user reported a very slow console frambuffer as
regression in current u-boot. I could bisect this down to the
above mentioned commit.

This revert brings back the fast framebuffer console (one
cache flush per string in puts(), not after each char).

Reported-by: Uwe Scheffler <scheffler.u@web.de>
Signed-off-by: Soeren Moch <smoch@web.de>
Tested-by: Uwe Scheffler <scheffler.u@web.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-12 16:18:16 -05:00
Kever Yang
8f4d62b403 spl: set SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR to 0x4000 for rockchip
Rockchip use a 'loader2' partition for U-Boot, so u-boot.bin or
u-boot.itb load by SPL need to locate at0x4000. Detail here:
http://opensource.rock-chips.com/wiki_Boot_option

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-07 09:16:57 +01:00
Masahiro Yamada
8ec87df376 image-sig: use designated initializers for algorithm
Designated initializers are more readable because we do not
have to check the order in the struct definitions.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-06 09:58:59 -05:00
Patrice Chotard
3bc599c956 stm32: fix STMicroelectronics copyright
Uniformize STMicroelectronics copyrights headers for STM32
related code.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-11-06 09:51:01 -05:00
Tuomas Tynkkynen
137aefba03 common: Remove genimg_get_image()
Removal of the legacy DataFlash code turned genimg_get_image() into a
no-op. Drop all calls to it and the function itself.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
2017-10-16 09:42:51 -04:00
Tuomas Tynkkynen
c68c03f52b Drop CONFIG_HAS_DATAFLASH
Last user of this option went away in commit:

fdc7718999 ("board: usb_a9263: Update to support DT and DM")

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
2017-10-16 09:42:51 -04:00
Tom Rini
26f9184e09 Merge git://git.denx.de/u-boot-fsl-qoriq 2017-10-12 13:36:58 -04:00
York Sun
d1fc0a31b5 spl: fix assignment of board info to global data
Commit 15eb1d43bf ("spl: reorder the assignment of board info to
global data") intended to move assignment of board info earlier,
into board_init_r(). However, function preload_console_init() is
called either from spl_board_init() or from board_init_f(). For the
latter case, the board info assignment is much earlier than proposed
board_init_r(). Create a new function to fill gd->bd and call this
function when needed.

Signed-off-by: York Sun <york.sun@nxp.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Ravi Babu <ravibabu@ti.com>
CC: Lukasz Majewski <lukma@denx.de>
CC: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-09 08:48:44 -07:00
Jean-Jacques Hiblot
02035d0086 fit: If no matching config is found in fit_find_config_node(), use the default one
If board_fit_config_name_match() doesn't match any configuration node,
then use the default one (if provided).

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-05 21:31:04 -04:00
Jean-Jacques Hiblot
d56b86eec3 fit: fixed bug in locate_dtb_in_fit()
If the dtb is the first data of the FIT, the its offset is 0x0. Change the
test to '<' instead of '<='

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-05 21:31:04 -04:00
Jean-Jacques Hiblot
906a9dbbcb fit: use 'const' for the input of fdt_offset() and locate_dtb_in_fit()
Those 2 functions don't modify their input, we can mark it const.
This prevents compilation warnings when they are provided const input.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-05 21:31:04 -04:00
Jean-Jacques Hiblot
11955590a2 dts: renamed FIT_EMBED to MULTI_DTB_FIT and moved it to the dts Kconfig
CONFIG_FIT_EMBED might be confused with CONFIG_OF_EMBED, rename it
MULTI_DTB_FIT as it is able to get a DTB from a FIT image containing
multiple DTBs. Also move the option to the Kconfig dedicated to the DTS
options and create a README for this feature.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-05 21:31:04 -04:00
Tom Rini
6a3e65dea3 common: Drop LOGLEVEL to 4
While this came in with a default value of 6 I am lowering this to 4.
The MTD/UBI code has a large number of error messages that we include
now.  In addition, "normally" warning messages are not included so this
feels like a more natural level to have.

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-05 08:25:18 -04:00
Masahiro Yamada
9b643e312d treewide: replace with error() with pr_err()
U-Boot widely uses error() as a bit noisier variant of printf().

This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:

  # define __compiletime_error(message) __attribute__((error(message)))

This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux.  (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)

Let's convert error() into now treewide-available pr_err().

Done with the help of Coccinelle, excluing tools/ directory.

The semantic patch I used is as follows:

// <smpl>
@@@@
-error
+pr_err
 (...)
// </smpl>

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-04 11:59:44 -04:00
Masahiro Yamada
b44b30260f printk: collect printk stuff into <linux/printk.h> with loglevel support
When we import code from Linux, with regular re-sync planned, we want
to use printk() and pr_*().  U-Boot does not support them in a clean
way.  So, people end up with local macros, or compat headers here and
there, then we occasionally see build errors of definition conflicts.

We have include/linux/compat.h, but putting all sorts of unrelated
things into a single header is just a temporal workaround.  Hence this
patch, to find the best home for all printk variants.  If you want to
use printk() and friends, please include <linux/printk.h>.  This header
is self-contained, and pulls in only a few headers.

When I was testing this clean-up, I noticed the image size exceeded
its platform limit on some boards.  This is because all pr_*() that
were previously defined as no-op in include/linux/mtd/mtd.h (unless
CONFIG_MTD_DEBUG is set), are now enabled.

To make such boards happy, this commit also implements CONFIG_LOGLEVEL.
The concept is similar to the kernel parameter "loglevel".  (Actually,
the Kconfig help message was taken from kernel-paremeter.txt of Linux)
Messages with a loglevel smaller than console loglevel will be printed.

The difference is the loglevel is build-time determined.  To save the
image size, lower priority pr_*() are compiled out.  I set the default
of CONFIG_LOGLEVEL to 6, i.e. pr_notice and higher priority messages
are compiled in.

I adjusted CONFIG_LOGLEVEL to avoid build error for some boards.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Add in SPL_LOGLEVEL that is the same as LOGLEVEL]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-04 10:31:17 -04:00
Tom Rini
4d1c166fee Merge git://git.denx.de/u-boot-usb 2017-10-01 18:06:53 -04:00
Bin Meng
72ac8f3fc2 usb: storage: Fix overwritten in usb_stor_set_max_xfer_blk()
The stored 'blk' value is overwritten to 'size / 512' before it can
be used in usb_stor_set_max_xfer_blk(). This is not what we want.
In fact, when 'size' exceeds the upper limit (USHRT_MAX * 512), we
should simply assign 'size' to the upper limit.

Reported-by: Coverity (CID: 167250)
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-10-01 16:32:55 +02:00
Bin Meng
061895fbe5 usb: hub: Clear BH reset status change for a 3.0 hub
USB 3.0 hubs report bit[5] in the port status change response as BH
reset. The hub shall set the C_BH_PORT_RESET field for this port.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-10-01 16:32:54 +02:00
Bin Meng
b90203526f usb: hub: Clear port reset before usb_hub_port_connect_change()
During usb_hub_port_connect_change(), a port reset set feature
request is issued to the port, and later a port reset clear feature
is done to the same port before the function returns. However at
the end of usb_scan_port(), we attempt to clear port reset again
on a cached port status change variable, which should not be done.

Adjust the call to clear port reset to right before the call to
usb_hub_port_connect_change().

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-10-01 16:32:54 +02:00
Bin Meng
932bb668bb usb: Read device descriptor after device is addressed for xHCI
For xHCI it is not possible to read a device descriptor before it
has been assigned an address. That's why usb_setup_descriptor()
was called with 'do_read' being false. But we really need try to
read the device descriptor before starting any real communication
with the default control endpoint.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-10-01 16:32:53 +02:00
Bin Meng
c008faa773 usb: Only get 64 bytes device descriptor for full speed devices
Full speed device endpoint 0 can have 8/16/32/64 bMaxPacketSize0.
Other speed devices report fixed value per USB spec. So it only
makes sense if we send a get device descriptor with 64 bytes to
full speed devices.

While we are here, update the comment block to be within 80 cols.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-10-01 16:32:53 +02:00
Bin Meng
2f0eb2ac4b usb: Handle audio extension endpoint descriptor in usb_parse_config()
Normal endpoint descriptor size is 7, but for audio extension it is
9. Handle that correctly when parsing endpoint descriptor.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-10-01 16:32:53 +02:00
Tom Rini
ff6c3125e7 TI: ARCH_OMAP2PLUS: Enable SPL_STACK_R and provide default value
On ARCH_OMAP2PLUS platforms we know what the DDR layout is going to be,
and that it is safe to use SPL_STACK_R and provide a default value for
it.  select this and re-sync the defconfigs.

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-09-29 14:07:51 -04:00
Seung-Woo Kim
b016b58542 spl: spl_mmc: add __maybe_unused to mmc_load_image_raw_sector()
If there are no CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR and CONFIG_SPL_OS_BOOT,
there is unused-function build warning. Add __maybe_unused macro
to remove the warning.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
2017-09-29 11:23:45 +09:00
Bin Meng
ea7fad9101 dm: usb: storage: Fix broken read/write when both EHCD and xHCD are enabled
When EHCD and xHCD are enabled at the same time, USB storage device
driver will fail to read/write from/to the storage device attached
to the xHCI interface, due to its transfer blocks exceeds the xHCD
driver limitation.

With driver model, we have an API to get the controller's maximum
transfer size and we can use that to determine the storage driver's
capability of read/write.

Note: the non-DM version driver is still broken with xHCD and the
intent here is not to fix the non-DM one, since the xHCD itself is
already broken in places like 3.0 hub support, etc.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-09-27 12:12:22 +02:00
Bin Meng
6158d0b424 usb: storage: Refactor to use max_xfer_blk from struct us_data
This adds a new memeber max_xfer_blk in struct us_data to record
the maximum number of transfer blocks for the storage device.

It is set per HCD setting, and so far is to 65535 for EHCD and 20
for everything else.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-09-27 12:12:22 +02:00