include: compat: remove dump_stack(...)

- We have implement dump_stack() for both ARM and ARM64;
- It was brought back by careless on commit: (28386b6 UPSTREAM: lib: Add hexdump)

Change-Id: I8ebbd4

include: compat: remove dump_stack(...)

- We have implement dump_stack() for both ARM and ARM64;
- It was brought back by careless on commit: (28386b6 UPSTREAM: lib: Add hexdump)

Change-Id: I8ebbd46862475485963d2ac835ea4031207d2153
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>

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UPSTREAM: lib: Add hexdump

Often during debugging session it's very interesting to see
what data we were dealing with. For example what we write or read
to/from memory or peripherals.

This change i

UPSTREAM: lib: Add hexdump

Often during debugging session it's very interesting to see
what data we were dealing with. For example what we write or read
to/from memory or peripherals.

This change introduces functions that allow to dump binary
data with one simple function invocation like:
------------------->8----------------
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len);
------------------->8----------------

which gives us the following:
------------------->8----------------
00000000: f2 b7 c9 88 62 61 75 64 72 61 74 65 3d 31 31 35 ....baudrate=115
00000010: 32 30 30 00 62 6f 6f 74 61 72 67 73 3d 63 6f 6e 200.bootargs=con
00000020: 73 6f 6c 65 3d 74 74 79 53 33 2c 31 31 35 32 30 sole=ttyS3,11520
00000030: 30 6e 38 00 62 6f 6f 74 64 65 6c 61 79 3d 33 00 0n8.bootdelay=3.
00000040: 62 6f 6f 74 66 69 6c 65 3d 75 49 6d 61 67 65 00 bootfile=uImage.
00000050: 66 64 74 63 6f 6e 74 72 6f 6c 61 64 64 72 3d 39 fdtcontroladdr=9
00000060: 66 66 62 31 62 61 30 00 6c 6f 61 64 61 64 64 72 ffb1ba0.loadaddr
00000070: 3d 30 78 38 32 30 30 30 30 30 30 00 73 74 64 65 =0x82000000.stde
00000080: 72 72 3d 73 65 72 69 61 6c 30 40 65 30 30 32 32 rr=serial0@e0022
00000090: 30 30 30 00 73 74 64 69 6e 3d 73 65 72 69 61 6c 000.stdin=serial
000000a0: 30 40 65 30 30 32 32 30 30 30 00 73 74 64 6f 75 0@e0022000.stdou
000000b0: 74 3d 73 65 72 69 61 6c 30 40 65 30 30 32 32 30 t=serial0@e00220
000000c0: 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00..............
...
------------------->8----------------

Source of hexdump.c was copied from Linux kernel v4.7-rc2.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Mario Six <mario.six@gdsys.cc>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Stefan Roese <sr@denx.de>

Change-Id: I038b41f51d45d1b853da499578bf8ef384a63730
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
(cherry picked from commit f8c987f8f127f867d96ca74bcd1fcb11d8265b67)

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arm: lib: add arm32/64 stacktrace support

This patch supports dump arm32/64 stacktrace as the format of raw
address info. The U-Boot symbol table is not available now, please
use ./scripts/stacktrac

arm: lib: add arm32/64 stacktrace support

This patch supports dump arm32/64 stacktrace as the format of raw
address info. The U-Boot symbol table is not available now, please
use ./scripts/stacktrace.sh script to parse stacktrace info with command:

./scripts/stacktrace.sh <file> // stacktrace info file

Example on RK3399:
Call trace:
PC: [< 00258a7c >] dwc3_gadget_uboot_handle_interrupt+0xa0/0x5bc
LR: [< 002052f8 >] usb_gadget_handle_interrupts+0x10/0x1c

Stack:
[< 00258a7c >] dwc3_gadget_uboot_handle_interrupt+0xa0/0x5bc
[< 0025bd6c >] sleep_thread.isra.20+0xb0/0x114
[< 0025cf58 >] fsg_main_thread+0x2c8/0x1814
[< 0020db58 >] do_rkusb+0x250/0x338
[< 00226a00 >] cmd_process+0xac/0xe0
[< 00212df4 >] run_list_real+0x6fc/0x72c
[< 00212f94 >] parse_stream_outer+0x170/0x67c
[< 002126e0 >] parse_string_outer+0xdc/0xf4
[< 00212bb0 >] run_list_real+0x4b8/0x72c
[< 00212f94 >] parse_stream_outer+0x170/0x67c
[< 00212698 >] parse_string_outer+0x94/0xf4
[< 00225f30 >] run_command_list+0x38/0x90
[< 00202d08 >] rockchip_dnl_mode_check+0x4c/0xd4
[< 00202db0 >] setup_boot_mode+0x20/0xf0
[< 00203010 >] board_late_init+0x10/0x40
[< 0027071c >] initcall_run_list+0x44/0x80
[< 00213d68 >] board_init_r+0x20/0x24

The "dump_stack()" is available to trigger stacktrace.

Change-Id: Ib1423269dd255fa4a34231489cd3b7e6ddd22540
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>

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UPSTREAM: dm: define dev_*() log functions in DM header

Many drivers had started to use dev_err, dev_info, etc. for log
functions. Currently, we are relying on <linux/compat.h>, but I
guess the bes

UPSTREAM: dm: define dev_*() log functions in DM header

Many drivers had started to use dev_err, dev_info, etc. for log
functions. Currently, we are relying on <linux/compat.h>, but I
guess the best home is <dm/device.h>, taking into account that
Linux defines them in <linux/device.h>.

For now, I am leaving the ones in <linux/compat.h> because lots of
Linux-originated code uses dev_*(), but the first argument is not
struct udevice, so we need to ignore the bogus argument. More
efforts are needed to iron out the issues.

Change-Id: I18f67bd63ac22d8b69bdf8e0558600c58e8703d2
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit c898cba41e94fa87c57d71911fb812cd34c7a91e)

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bug.h: move runtime BUG/WARN macros into <linux/bug.h>

Collect runtime BUG/WARN into a self-contained header <linux/bug.h>
to make these macros easier to use.

Change-Id: If924684bdab99d2c8fe0b4b375

bug.h: move runtime BUG/WARN macros into <linux/bug.h>

Collect runtime BUG/WARN into a self-contained header <linux/bug.h>
to make these macros easier to use.

Change-Id: If924684bdab99d2c8fe0b4b3755d0ee5291d11be
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit 0a70fb4c1c180d6ad6cd4c1dcd3fae8c5d4dd62e)

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UPSTREAM: 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

UPSTREAM: 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.

Change-Id: I997d8bbeedd48777be87472df8ed126181fc4b8e
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>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit b44b30260ffa3dc82f4bb98b022483bb09e95353)

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treewide: remove unneeded semicolons

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Update WARN_ON() to return a value

In linux v4.9 this returns a value. This saves checking the warning
condition twice in some code.

Update the U-Boot version to do this also.

Signed-off-by: Simon

Update WARN_ON() to return a value

In linux v4.9 this returns a value. This saves checking the warning
condition twice in some code.

Update the U-Boot version to do this also.

Signed-off-by: Simon Glass <sjg@chromium.org>

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delay: collect {m, n, u}delay declarations to include/linux/delay.h

Currently, mdelay() and udelay() are declared in include/common.h,
while ndelay() in include/linux/compat.h. It would be nice to

delay: collect {m, n, u}delay declarations to include/linux/delay.h

Currently, mdelay() and udelay() are declared in include/common.h,
while ndelay() in include/linux/compat.h. It would be nice to
collect them into include/linux/delay.h like Linux.

While we are here, fix the ndelay() implementation; I used the
DIV_ROUND_UP() instead of (x)/1000 because it must wait *longer*
than the given period of time.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

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Merge branch 'master' of git://git.denx.de/u-boot

Signed-off-by: Stefano Babic <sbabic@denx.de>

linux/compat.h: Properly implement ndelay fallback

Commit c68c62 ("i2c: mvtwsi: Make delay times frequency-dependent")
extensively used the ndelay function with a calculated parameter
which is depen

linux/compat.h: Properly implement ndelay fallback

Commit c68c62 ("i2c: mvtwsi: Make delay times frequency-dependent")
extensively used the ndelay function with a calculated parameter
which is dependant on the configured frequency of the I2C bus. If
standard speed is employed, the parameter is usually 10000 (10000ns
period length for 100kHz frequency).

But, since the arm architecture does not implement a proper version of
ndelay, the fallback default from include/linux/compat.h is used,
which defines every ndelay as udelay(1). This causes problems for
slower speeds on arm, since the delay time is now 9us too short for
the desired frequency, which leads to random failures of the I2C
interface.

To remedy this, we implement a proper, parameter-aware ndelay fallback
for architectures that don't implement a real ndelay function.

Reported-By: Jason Brown <Jason.brown@apcon.com>
To: Tom Rini <trini@konsulko.com>
To: Heiko Schocher <hs@denx.de>
Signed-off-by: Mario Six <mario.six@gdsys.cc>

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Move ENOTSUPP defines to include/linux/errno.h

Collect a couple of duplicated defines into a single place.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Merge branch 'master' of git://git.denx.de/u-boot-atmel

linux/compat.h: add dev_warn()

In order to prevent build errors for copied code from linux introduce
dev_warn().

Suggested-by: Scott Wood <oss@buserror.net>
Signed-off-by: Andreas Bießmann <andreas

linux/compat.h: add dev_warn()

In order to prevent build errors for copied code from linux introduce
dev_warn().

Suggested-by: Scott Wood <oss@buserror.net>
Signed-off-by: Andreas Bießmann <andreas@biessmann.org>
Acked-by: Simon Glass <sjg@chromium.org>

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Merge git://git.denx.de/u-boot

compat: Remove is_power_of_2() definition

Use the is_power_of_2() definition from log2.h to align with the
kernel implementation.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed

compat: Remove is_power_of_2() definition

Use the is_power_of_2() definition from log2.h to align with the
kernel implementation.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Jagan Teki <jteki@openedev.com>

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Merge branch 'master' of git://git.denx.de/u-boot

linux, compat: add missing definitions for ubi

add missing definitions for the ubi/ubifs sync
with linux 4.2, also change "#define kfree ..."
into a static inline, so prevent ubi compile error:

linux, compat: add missing definitions for ubi

add missing definitions for the ubi/ubifs sync
with linux 4.2, also change "#define kfree ..."
into a static inline, so prevent ubi compile error:

CC drivers/mtd/ubi/fastmap.o
drivers/mtd/ubi/fastmap.c: In function 'scan_pool':
drivers/mtd/ubi/fastmap.c:475:3: error: called object 'free' is not a function

Signed-off-by: Heiko Schocher <hs@denx.de>

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linux_compat: handle __GFP_ZERO in kmalloc()

Currently, kzalloc() returns zero-filled memory, while kmalloc()
simply ignores the second argument and never fills the memory
area with zeros.

I want k

linux_compat: handle __GFP_ZERO in kmalloc()

Currently, kzalloc() returns zero-filled memory, while kmalloc()
simply ignores the second argument and never fills the memory
area with zeros.

I want kmalloc(size, __GFP_ZERO) to behave as kzalloc() does,
which will make it easier to add more memory allocator variants.

With the introduction of __GFP_ZERO flag, going forward, kzmalloc()
variants can fall back to kmalloc() enabling the __GFP_ZERO flag.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>

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linux_compat: move vzalloc() to header file as an inline function

The vzalloc(size) is equivalent to kzalloc(size, 0). Move it to
include/linux/compat.h as an inline function in order to avoid the

linux_compat: move vzalloc() to header file as an inline function

The vzalloc(size) is equivalent to kzalloc(size, 0). Move it to
include/linux/compat.h as an inline function in order to avoid the
function call overhead.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Simon Glass <sjg@chromium.org>

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linux_compat: remove cpu_relax() define

The macro cpu_relax() is defined by several headers in different
ways.

arch/{arm,avr32,mips}/include/asm/processor.h defines it as follows:
#define cpu_rel

linux_compat: remove cpu_relax() define

The macro cpu_relax() is defined by several headers in different
ways.

arch/{arm,avr32,mips}/include/asm/processor.h defines it as follows:
#define cpu_relax() barrier()

On the other hand, include/linux/compat.h defines it as follows:
#define cpu_relax() do {} while (0)

If both headers are included from the same source file, the warning
warning: "cpu_relax" redefined [enabled by default]
is displayed.

It effectively makes it impossible to include <linux/compat.h>
from some sources. Drop the latter.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>

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usb: dwc3: gadget: make dwc3 gadget build in uboot

Did a bunch of things to get dwc3/gadget.c compile in u-boot without
build errors and warnings
*) Changed the included header files to that used in

usb: dwc3: gadget: make dwc3 gadget build in uboot

Did a bunch of things to get dwc3/gadget.c compile in u-boot without
build errors and warnings
*) Changed the included header files to that used in u-boot.
*) Used dma_alloc_coherent and dma_free_coherent APIs of u-boot
*) removed sg support
*) remove jiffies and used a simple while loop
*) removed irq support and added a function to call these interrupt handler.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>

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Merge remote-tracking branch 'u-boot/master' into 'u-boot-arm/master'

Merge branch 'master' of git://git.denx.de/u-boot

Merge branch 'master' of git://git.denx.de/u-boot-ubi