arm: Migrate SYS_THUMB_BUILD to Kconfig, introduce SPL_SYS_THUMB_BUILD

Today, we have cases where we wish to build all of U-Boot in Thumb2 mode for
various reasons. We also have cases where we only

arm: Migrate SYS_THUMB_BUILD to Kconfig, introduce SPL_SYS_THUMB_BUILD

Today, we have cases where we wish to build all of U-Boot in Thumb2 mode for
various reasons. We also have cases where we only build SPL in Thumb2 mode due
to size constraints and wish to build the rest of the system in ARM mode. So
in this migration we introduce a new symbol as well, SPL_SYS_THUMB_BUILD to
control if we build everything or just SPL (or in theory, just U-Boot) in
Thumb2 mode.

Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>

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

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

arm: include: Import unified.h from Linux kernel

Import unified.h from Linux kernel 4.4.6 , commit
0d1912303e54ed1b2a371be0bba51c384dd57326 . This header file contains
macros used in libgcc function

arm: include: Import unified.h from Linux kernel

Import unified.h from Linux kernel 4.4.6 , commit
0d1912303e54ed1b2a371be0bba51c384dd57326 . This header file contains
macros used in libgcc functions in Linux kernel on ARM and will be
needed for the libgcc sync.

Since unified.h defines the W(instr) macro, we must drop this from
the macro from memcpy.S , otherwise this triggers a warning about
symbol redefinition. In order to keep the changes to unified.h to
the minimum, tweak arch/arm/lib/Makefile such that it defines the
CONFIG_ARM_ASM_UNIFIED macro, which places .syntax unified into all
of the assembler files. This is mandatory.

Moreover, for Thumb2 build, define CONFIG_THUMB2_KERNEL macro if and
only if Thumb2 build is enabled. This macro is checked by unified.h
and toggles between ARM and Thumb2 variant of the instructions in the
assembler source files.

Finally, this patch defines __LINUX_ARM_ARCH__=N macro based on the
new CONFIG_SYS_ARM_ARCH Kconfig option. This macro selects between
more optimal and more dense codepaths which work on armv5 and newer
and less optimal codepaths which work on armv4 and possible armv3m.
Tegra2 needs the same special handling as it does in arch/arm/Makefile
to cater for the arm720t boot core.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

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

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

arm: support Thumb-1 with CONFIG_SYS_THUMB_BUILD

When building a Thumb-1-only target with CONFIG_SYS_THUMB_BUILD,
some files fail to build, most of the time because they include
mcr instructions, wh

arm: support Thumb-1 with CONFIG_SYS_THUMB_BUILD

When building a Thumb-1-only target with CONFIG_SYS_THUMB_BUILD,
some files fail to build, most of the time because they include
mcr instructions, which only exist for Thumb-2.

This patch introduces a Kconfig option CONFIG_THUMB2 and uses
it to select between Thumb-2 and ARM mode for the aforementioned
files.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>

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arm: build arch memset/memcpy in Thumb2 mode

Resynchronize memcpy/memset with kernel 3.17 and build them in
Thumb2 mode (unified syntax). Those assembler files can be built
and linked in ARM mode to

arm: build arch memset/memcpy in Thumb2 mode

Resynchronize memcpy/memset with kernel 3.17 and build them in
Thumb2 mode (unified syntax). Those assembler files can be built
and linked in ARM mode too, however when calling them from Thumb2
built code, the stack got corrupted and the copy did not succeed
(the exact details have not been traced back). However, the Linux
kernel builds those files in Thumb2 mode. Hence U-Boot should
build them in Thumb2 mode too when CONFIG_SYS_THUMB_BUILD is set.

To build the files without warning, some assembler instructions
had to be replaced with their UAL compliant variant (thanks
Jeroen for this input).

To build the file in Thumb2 mode the implicit-it=always option need
to be set to generate Thumb2 compliant IT instructions where needed.
We add this option to the general AFLAGS when building for Thumb2.

Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Stefan Agner <stefan@agner.ch>

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

* 'master' of git://git.denx.de/u-boot-arm: (145 commits)
beagleboard: enable HUB power on all variants of the BeagleBoard
dm3730: enable dp

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

* 'master' of git://git.denx.de/u-boot-arm: (145 commits)
beagleboard: enable HUB power on all variants of the BeagleBoard
dm3730: enable dpll5
ehci-hcd: Allow cleanups to happen gracefully on a timeout.
OMAP3: Add DSS driver for OMAP3
led: Remove state-saving of led for toggle functionality and add toggle option to led command
led: Fixed setting of STATUS_LED_BIT1 when led_name is 'all'
led: correct off/on locations in structure
led: added cmd_led to Makefile
BeagleBoard: fix LED 0/1 in driver
Corrected LED name match finding avoiding extraneous Usage printouts
BeagleBoard: config: updated default configuration
BeagleBoard: config: Enabled multibus support for I2C in configuration
BeagleBoard: config: add optargs/buddy/camera
BeagleBoard: config: increase command-line functionality
BeagleBoard: config: make mtest run
BeagleBoard: config: enable DSS
BeagleBoard: config: enable asix driver and dhcp
BeagleBoard: config: enable networking
BeagleBoard: config: decrease bootdelay to 2 seconds
BeagleBoard: config: use uImage.beagle for tftp
BeagleBoard: config: hardcode MAC for onboard SMSC
BeagleBoard: config: load kernel from MMC ext, not FAT
BeagleBoard: Configure DVI/S-video
BeagleBoard: Added userbutton command
BeagleBoard: turn off clocks in ehci_stop
USB: Remove __attribute__ ((packed)) for struct ehci_hccr and ehci_hcor
beagleboard: add support for xM revision C
beagle: pass expansionboard name in bootargs
OMAP: Remove omapfb.debug=y from Beagle and Overo env settings
OMAP3 Beagle Pin Mux initialization glitch fix
da850: modifications for Logic PD Rev.3 AM18xx EVM
da850: fix the channel number for EMAC teardown init
da850: add support for Spectrum Digital AM18xx EVM
da850: add support to wake up DSP during board init
da850: modify the U-Boot prompt string
da850: add NOR boot mode support
da8xx: add support for multiple PLL controllers
da850: indicate cache usage disable in config file
dm365: modify boot prompt from dm365 to dm36x
dm365: disable cache usage due to coherency issues
dm6446: disable cache usage due to coherency issues
OMAP3: Remove legacy mmc driver
devkit8000: Use generic MMC driver
TI OMAP3 SDP3430: Use generic MMC driver
AM3517 CraneBoard: Use generic MMC driver
OMAP3: pandora: Use generic MMC driver
OMAP3: Zoom2: Use generic MMC driver
OMAP3: Zoom1: Use generic MMC driver
OMAP3: DIG297: Use generic MMC driver
OMAP3: CM-T35: Use generic MMC driver
am3517evm: Use generic MMC driver
omap3evm: Use generic MMC driver
omap3:clock: check cpu_family before enabling clks for IVA & CAM
omap3:clock: configure GFX clock to 200MHz for AM/DM37x
OMAP3/4: Increase console I/O buffer size
PXA: vpac270: Remove re-defined CONFIG_SYS_TEXT_BASE
PXA: Fix CSB226, fix monitor length
PXA: Fix Lubbock, remove redundant parenthesis
armv7: cache: remove flush on un-aligned invalidate
armv7: stronger barrier for cache-maintenance operations
omap: enable caches at system start-up
arm: do not force d-cache enable on all boards
ORIGEN: Add MMC SPL support
ARMV7: Add support for Samsung ORIGEN board
i2c:gpio:s5p: Enable I2C GPIO on the GONI target
i2c:gpio:s5p: I2C GPIO Software implementation (via soft_i2c)
Tegra2: Use clock and pinmux functions to simplify code
Tegra2: Add additional pin multiplexing features
Tegra2: Add more clock support
Tegra2: Add microsecond timer function
ARM: remove broken "at91rm9200dk" board
ARM: remove broken "m501sk" board
ARM: remove broken "kb9202" board
ARM: remove broken "csb637" board
ARM: remove broken "cmc_pu2" board
ARM: remove broken "at91cap9adk" board
ARM: remove broken "voiceblue" board
ARM: remove broken "smdk2400" board
ARM: remove broken "sbc2410x" board
ARM: remove broken "netstar" board
ARM: remove broken "mx1fs2" board
ARM: remove broken "lpd7a40x" boards
ARM: remove broken "edb93xx" boards
ARM: remove broken "B2" board
ARM: remove broken "armadillo" board
ARM: remove broken "assabet" board
ARM: versatile: drop warnings
IMX: scb9328: drop warnings
MX31: imx31_litekit: make use of GPIO framework
MX31: mx31ads: make use of GPIO framework
MX5: mx51evk: make use of GPIO framework
MX35: mx35pdk: make use of GPIO framework
MX5: mx53loco: make use of GPIO framework
MX5: mx53evk: make use of GPIO framework
MX5: vision2: make use of GPIO framework
MX5: mx53smd: make use of GPIO framework
MX5: mx53ard: make use of GPIO framework
MX25: zmx25: make use of GPIO framework
MX5: efikamx: make use of GPIO framework
MX31: QONG: make use of GPIO framework
MX35: make use of GPIO framework for MX35 processor
MX5: make use of GPIO framework for MX5 processor
MX31: make use of GPIO framework for MX31 processor
MX25: make use of GPIO framework for MX25 processor
IMX: uniform GPIO interface using GPIO framework
MX: MX35 / MX5: uniform clock command with powerpc
MX35: MX35PDK: support additional RAM on CSD1
mx53: ddr3: Update DD3 initialization
ARM: MX51: PLL errata workaround
ARM: versatilepb : drop warnings due to double definitions
omap4: increase SRAM budget to fix build error
omap4: fix build warning due to signed unsigned comparison
mkimage: Fix 'Unknown OMAP image type - 5'
omap: fix gpio related build breaks
gpio:samsung: s5p_ suffix add for GPIO functions (C210_universal)
SMDKV310: MMC SPL: Remove unwanted dummy functions
SMDKV310: Fix undefined reference error
SMDKV310: Fix build error for smdkv310 board
gpio:samsung s5p_ suffix add for GPIO functions
mmc: S5P: Support DMA restarts at buffer boundaries
SMDKV310: Fix host compilation of mkv310_image
arm: fix bd pointer dereference prior initialization
arm, lib/board.c: use gd->ram_size instead of bd->bi_memsize
mx5: Remove CONFIG_L2_OFF and CONFIG_SYS_L2CACHE_OFF
MX31: removed warnings due to clock.h
integrator: convert to new build system
integratorcp: make the board compile
integratorap: remove hardcoded 32MB memory cmdline
...

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arm: lib: memcpy: Do not copy to same address

In some cases (e.g. bootm with a elf payload which is already at the right
position) there is a in place copy of data to the same address. Catching this

arm: lib: memcpy: Do not copy to same address

In some cases (e.g. bootm with a elf payload which is already at the right
position) there is a in place copy of data to the same address. Catching this
saves some ms while booting.

Signed-off-by: Matthias Weisser <weisserm@arcor.de>

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Minor coding style cleanup.

Signed-off-by: Wolfgang Denk <wd@denx.de>

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

arm: Use optimized memcpy and memset from linux

Using optimized versions of memset and memcpy from linux brings a quite
noticeable speed (x2 or better) improvement for these two functions.

Here are

arm: Use optimized memcpy and memset from linux

Using optimized versions of memset and memcpy from linux brings a quite
noticeable speed (x2 or better) improvement for these two functions.

Here are some numbers for test done with jadecpu

| HEAD(1)| HEAD(1)| HEAD(2)| HEAD(2)|
| | +patch | | +patch |
---------------------------+--------+--------+--------+--------+
Reset to prompt | 438ms | 330ms | 228ms | 120ms |
| | | | |
TFTP a 3MB img | 4782ms | 3428ms | 3245ms | 2820ms |
| | | | |
FATLOAD USB a 3MB img* | 8515ms | 8510ms | ------ | ------ |
| | | | |
BOOTM LZO img in RAM | 3473ms | 3168ms | 592ms | 592ms |
where CRC is | 615ms | 615ms | 54ms | 54ms |
uncompress | 2460ms | 2462ms | 450ms | 451ms |
final boot_elf | 376ms | 68ms | 65ms | 65ms |
| | | | |
BOOTM LZO img in FLASH | 3207ms | 2902ms | 1050ms | 1050ms |
where CRC is | 600ms | 600ms | 135ms | 135ms |
uncompress | 2209ms | 2211ms | 828ms | 828ms |
| | | | |
Copy 1.4MB from NOR to RAM | 134ms | 72ms | 120ms | 70ms |

(1) No dcache
(2) dcache enabled in board_init
*Does not work when dcache is on

Size impact:

C version:
text data bss dec hex filename
202862 18912 266456 488230 77326 u-boot

ASM version:
text data bss dec hex filename
203798 18912 266288 488998 77626 u-boot
222712 u-boot.bin

Signed-off-by: Matthias Weisser <weisserm@arcor.de>

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