Commit graph

47297 commits

Author SHA1 Message Date
Derald D. Woods
8a3556edba omap3: evm: Explicitly use DISTRO_DEFAULTS features at startup
[primary] Check MMC 0:1 for /extlinux/extlinux.conf and boot
[fallback 1] Check MMC 0:1 zImage and run mmcbootz
[fallback 2] Check MMC 0:1 uImage and run mmcboot
[fallback 3] Check NAND partitions and run nandboot

If 'extlinux.conf' is not found on MMC 0, the previous boot behavior is
followed.

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
2017-12-04 10:23:53 -05:00
Peng Fan
90351547ce armv8: mmu: fix page table mapping
To page mapping the lowest 2 bits needs to be 0x3.
If not fix this, the final lowest 3 bits for page mapping is 0x1
which is marked as reserved.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-04 10:23:52 -05:00
Peng Fan
082693f4f0 arm64 :show_regs: show the address before relocation
After relocation, when error happends, it is hard to track
ELR and LR with asm file objdumped from elf file.

So subtract the gd->reloc_off the reflect the compliation address.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-12-04 10:23:52 -05:00
Neil Armstrong
c7be3e5a79 ARM: arch-meson: build memory banks using reported memory from registers
As discussed at [1], the Amlogic Meson GX SoCs can embed a BL31 firmware
and a secondary BL32 firmware.
Since mid-2017, the reserved memory address of the BL31 firmware was moved
and grown for security reasons.

But mainline U-Boot and Linux has the old address and size fixed.

These SoCs have a register interface to get the two firmware reserved
memory start and sizes.

This patch adds a dynamic reservation of the memory zones in the device tree bootmem
reserved memory zone used by the kernel in early boot.
To be complete, the memory zones are also added to the EFI reserved zones.

Depends on patchset "Add support for Amlogic GXL Based SBCs" at [2].

[1] http://lists.infradead.org/pipermail/linux-amlogic/2017-October/004860.html
[2] http://lists.infradead.org/pipermail/linux-amlogic/2017-November/005410.html

Changes since v1:
- switched the #if to if(IS_ENABLED()) to compile all code paths
- renamed function to meson_board_add_reserved_memory()
- added a mem.h header with comment
- updated all boards ft_board_setup()

Changes since RFC v2:
- reduced preprocessor load
- kept Odroid-C2 static memory mapping as exception

Changes since RFC v1:
- switch to fdt rsv mem table and efi reserve memory
- replaced in_le32 by readl()

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[trini: Fix warning on khadas-vim over missing <asm/arch/mem.h>
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-12-04 10:17:29 -05:00
Neil Armstrong
5ff2ee44ee arm: Add Khadas VIM support based on Meson GXL family
This adds platform code for the Khadas VIM board based on a
Meson GXL (S905X) SoC with the Meson GXL configuration.

This initial submission supports UART, MMC/SDCard and Ethernet with the
Internal RMII PHY.

The meson-gxl-s905x-khadas-vim.dts is synchronised from the linux 4.13
stable tree as of 4.13.8.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-12-04 09:59:03 -05:00
Neil Armstrong
96e7b5a174 arm: Add LibreTech CC support based on Meson GXL family
This adds platform code for the Libre Computer CC "Le Potato" board based on a
Meson GXL (S905X) SoC with the Meson GXL configuration.

This initial submission supports UART, MMC/SDCard and Ethernet with the
Internal RMII PHY.

The meson-gxl-s905x-libretech-cc.dts is synchronised from the linux 4.13
stable tree as of 4.13.8.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-12-04 09:59:03 -05:00
Neil Armstrong
f49638e9f9 board: p212: use common ethernet init function
Switch P212 Ethernet init to the common Ethernet init function.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-12-04 09:59:03 -05:00
Neil Armstrong
9a41746f84 board: odroid-c2: use common ethernet init function
Switch Odroid-C2 Ethernet init to the common Ethernet init function.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-12-04 09:59:03 -05:00
Neil Armstrong
6915b10331 ARM: arch-meson: add ethernet common init function
Introduce a generic common Ethernet Hardware init function
common to all Amlogic GX SoCs with support for the
Internal PHY enable for GXL SoCs.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-12-04 09:59:02 -05:00
Masahiro Yamada
26e961c8cf libfdt: migrate fdt_wip.c to a wrapper of scripts/dtc/libfdt/fdt_wip.c
Now, lib/libfdt/fdt_wip.c is the same as scripts/dtc/libfdt/fdt_wip.c

Change the former to a wrapper of the latter.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-12-04 09:59:02 -05:00
Masahiro Yamada
87be1e9fb4 libfdt: move fdt_find_regions() to fdt_region.c from fdt_wip.c
All the other fdt_*_region() functions are located in fdt_region.c,
while only fdt_find_regions() was added to fdt_wip.c, strangely.

Move it to the suitable place.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-12-04 09:59:02 -05:00
Andre Przywara
78ad457b2d armv8: shrink exception table code
In the moment our exception entry code needs 34 instructions, so we
can't use put it directly into the table entry, which offers "only"
32 instructions there. Right now we just put an unconditional branch
there, then use a macro to place the 34 instructions *per entry* after
that. That effectivly doubles the size of our exception table, which
is quite a waste, given that we use it mostly for debugging purposes.

Since the register saving part is actually identical, let's just convert
that macro into a function, and "bl" into it directly from the exception
slot, of course after having saved at least the original LR.
This saves us about 950 bytes of code, which is quite a relief for some
tight SPLs, in particular the 64-bit Allwinner ones.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2017-12-04 09:59:02 -05:00
Dmitry Korunov
8993056fb3 add support for Raspberry Pi Zero W
Signed-off-by: Dmitry Korunov <dessel.k@gmail.com>
2017-12-04 09:59:02 -05:00
Simon Glass
0aac10f2f9 test: compression: Convert to unit test framework
Adjust this test to use the unit test framework. Drop the two existing
commands for running the tests and replace them with a single
'ut compression' command, with sub-commands.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Continue to have ret = run_test_internal(...) in run_test so ret
is always initialized]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-12-04 09:58:20 -05:00
Simon Glass
1f0fe88db1 test/py: Allow any unit test suite to be found
The u-boot.sym file is scanned to find unit test suites for execution. At
present it only finds those whose names start with 'dm' or 'env'. This
code is buried in the bowels of the test code so when adding a new suite
it is not easy to discover why it is ignored by the test framework.

There seems to be no need to make this restriction. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
2017-12-02 18:32:58 -05:00
Simon Glass
49f22c38f1 test: compression: Put test variables in a struct
At present the test setup is somewhat mixed with the test itself. But if
the test setup fails (which it should not) then the test is actually
invalid. Put all the test buffers and sizes in a struct and separate out
the core code into a function.

This will make it easier to move the code to use the unit test framework.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-02 18:32:58 -05:00
Simon Glass
e93232e15e test: overlay: Use cmd_ut_category()
Adjust the code to use the common test-execution function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-02 18:32:58 -05:00
Simon Glass
4d869c1e49 test: Add a command function for test execution
The logic to either iterate through a list of tests or pick a named test
is common to at lest two test suits. Move this logic into a new function
and call it from the environment tests.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-12-02 18:32:58 -05:00
Peter Robinson
b59670f2bd omap2: set the ethaddr as well as the usbethaddr env var to ensure static MAC
The kernel gets the ethernet MAC from the ethaddr variable, the omap boards for
devices with USB based eth adapters just set the usbethaddr which doesn't appear
to get passed to the kernel. The same Raspberry Pi code sets both ethaddr and
usbethaddr so lets do that so linux (tested 4.13 and 4.14) get a static rather
than a random MAC address, while not regressing users of usbethaddr.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
2017-12-02 18:32:58 -05:00
Tom Rini
0290700429 Merge git://git.denx.de/u-boot-rockchip 2017-12-01 19:08:30 -05:00
Philipp Tomsich
4fc495e9e2 rockchip: clk: rk3128: fix DCLK_VOP_DIV_CON_MASK
The DCLK_VOP_DIV_CON_MASK should cover only bits 8 through 15.
Fix this to remove an "integer-overflow on shifted constant" warning.

Fixes: 9246d9e ("rockchip: rk3128: add clock driver")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-12-02 00:27:42 +01:00
Philipp Tomsich
cd401abcd5 rockchip: clk: rk3128: fix NANDC_PLL_SEL_MASK
The PLL selector field for NANDC is only 2 bits wide.
This fixes an 'int-overflow on shift' warning.

Fixes: 9246d9e ("rockchip: rk3128: add clock driver")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-12-02 00:27:31 +01:00
Philipp Tomsich
5f104178bf rockchip: dts: rk3399-puma: add /config/sysreset-gpio property
On the RK3399-Q7, we want to trigger a full platform reset (so the
various software stacks supported don't have to deal with the same
complexities over and over again) in case that anything other than a
power-on reset occurred.

To do so, this defines the /config/sysreset-gpio property and has it
point to a GPIO that will perform a power-on reset of the entire
platform.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2017-11-30 22:59:54 +01:00
Philipp Tomsich
ae0d33a729 rockchip: rk3399-puma: add code to allow forcing a power-on reset
The reset circuitry in the RK3399 only resets 'almost all logic' when
a software reset is performed.  To make our software maintenance
easier in the future, we want to have the option (controlled by a DTS
property) to force all reset causes other than a power-on reset to
trigger a power-on reset via a GPIO trigger.

This adds the necessary support to the rk3399-puma (i.e. RK3399-Q7)
board-support and the documentation for the new property
(sysreset-gpio) within the /config-node.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-30 22:59:54 +01:00
Philipp Tomsich
884ad05d34 rockchip: dts: rk3399-puma: add a 'tsd, usb-port-power' stringlist for USB1
USB1 is connected to the on-module USB 3.0 hub and power to the hub
(actually it's a reset signal, modeled as a fixed regulator, that will
be released) should be enabled only during the first probing of the
device to avoid the hub from entering its low-power mode (where it
tries to attach on a fixed interval, but we always miss the timeslot
when U-Boot has the controller listening).

This adds a 'tsd,usb-port-power' stringlist to enable the
infrastructure in the board-specific usb_hub_reset_devices to find and
control the fixed regulator associated with control of the USB hub.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Jakob Unterwurzacher <jakob.unterwurzacher@theobroma-systems.com>
2017-11-30 22:55:27 +01:00
Philipp Tomsich
614539d4f7 rockchip: rk3399-puma: implement usb_hub_reset_devices for puma-rk3399
For some versions of the RK3399-Q7 (at least revisions v1.1 and v1.2
are affected), we need to turn on the power for the port connected to
the on-module USB hub only when the device is probed for the first
time to ensure that the hub does not enter a low-power mode (that
U-Boot's USB stack can't deal with).

Note that this is needed for U-Boot only, as Linux eventually manages
to attach the hub even when it has entered into its low-power state
(when the hub wakes up the next time) after a few seconds.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Jakob Unterwurzacher <jakob.unterwurzacher@theobroma-systems.com>
2017-11-30 22:55:27 +01:00
Kever Yang
fd1f80aab6 rockchip: rk3036: sdram: correct setting for pll integer mode
According to rk3036 TRM, should be set to '1' for the pll
integer mode, while the '0' means the frac mode.

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>
2017-11-30 22:55:27 +01:00
Kever Yang
731cafecc5 rockchip: rk3036: update clock driver for ddr
After the MASK MACRO update, we need to update the driver at the same time.
This is a fix to:
37943aa rockchip: rk3036: clean mask definition for cru reg

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>
2017-11-30 22:55:27 +01:00
Kever Yang
faa75ad9e6 rockchip: rk3036: fix pll config for correct frequency
There is a fixed div-2 between PLL and clk_ddr/clk_ddrphy,
so we need to double to pll output and then ddr can work
in correct frequency.

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>
2017-11-30 22:55:27 +01:00
Philipp Tomsich
f9cf8cbb9e rockchip: board: evb-rk3128: add empty Makefile
Even if the board-specific directory Makefile doesn't have any
targets, it still needs to exist.

This adds a minimal Makefile for the board/rockchip/evb_rk3128
directory and a evk-rk3128.c (as built-in.o needs to be built
for every directory that a Makefile gets run for).

Fixes: c7a6866 ("rockchip: rk3128: add evb-rk3128 support")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-30 22:55:27 +01:00
Kever Yang
b7aef28953 rockchip: rk3128: add sdram driver
RK3128 support up to 2GB DDR3 sdram, one channel, 32bit data width.

This patch is only used for U-Boot, but not for SPL which will
comes later, maybe after we merge all the common code into a common
file.

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>
2017-11-30 22:55:27 +01:00
Kever Yang
ed7e64e5e8 rockchip: rk3128: add defconfig for evb-rk3128
Enable board config for evb-rk3128.
Serial output and eMMC works in this version.

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>
2017-11-30 22:55:27 +01:00
Kever Yang
6074cfaa8e rockchip: rk3128: add evb-rk3128 support
evb-rk3128 is an evb from Rockchip based on rk3128 SoC:
- 2 USB2.0 Host port;
- 1 HDMI port;
- 2 10/100M eth port;
- 2GB ddr;
- 16GB eMMC;
- UART to USB debug port;

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>
2017-11-30 22:55:27 +01:00
Kever Yang
e129c480e4 rockchip: rk3128: add pinctrl driver
Add rk3128 pinctrl driver and grf/iomux structure definition.

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>
2017-11-30 22:55:26 +01:00
Kever Yang
9246d9e541 rockchip: rk3128: add clock driver
Add rk3128 clock driver and cru structure definition.

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>
2017-11-30 22:55:26 +01:00
Kever Yang
daeed1dbb5 rockchip: rk3128: add soc basic support
RK3128 is a SoC from Rockchip with quad-core Cortex-A7 CPU
and mali400 GPU. Support Nand flash, eMMC, SD card, USB 2.0 host
and device, HDMI/LVDS/MIPI display.

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>
2017-11-30 22:55:26 +01:00
Kever Yang
bbd6e6d729 rockchip: rk3128: add device tree file
Add dts binding header for rk3128, files origin from kernel.

Series-Changes: 2
- fix i2c address
- add saradc and usb phy node
- emmc using fifo mode for there is no dma support in rk3128 emmc
- add some clock id in cru.h

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>
2017-11-30 22:55:26 +01:00
Andy Yan
dca4740930 rockchip: board: evb_rv1108: update README
After commit d962e5dadc2c("rockchip: mkimage: use spl_boot0 for all Rockchip SoCs"),
the mkimage will not pad the Tag memroy, so we shoud
pass a Taged ddr.bin/spl.bin to it.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-30 22:55:26 +01:00
Philipp Tomsich
8b45193a22 MAINTAINERS: update maintained files for Rockchip
With some of the recent cleanups (e.g. moving the DRAM controller
drivers for Rockchip devices to drivers/ram/rockchip), the files
and paths listed in MAINTAINERS no longer covered what really is
looked after as part of the Rockchip port.

This commit updates the files/paths listed in MAINTAINERS for the
Rockchip port.  I am certain, though, that this will have missed some
additional paths that should have been included...

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-30 22:55:26 +01:00
Tom Rini
9804d88630 Merge branch 'rmobile-mx' of git://git.denx.de/u-boot-sh 2017-11-30 10:39:04 -05:00
Tom Rini
55e76b3c86 Merge git://git.denx.de/u-boot-marvell 2017-11-30 10:38:40 -05:00
Tom Rini
6ea51d2860 Merge git://git.denx.de/u-boot-x86 2017-11-30 10:37:43 -05:00
Marek Vasut
ab61e17571 ARM: rmobile: Rework the ULCB CPLD driver
Rework the ULCB CPLD driver and make it into a sysreset driver,
since that is what the ULCB CPLD driver is mostly for.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-11-30 08:54:18 +01:00
Chris Packham
01c541e0e6 arm: mvebu: correct comments around cas_wl/cas_l
The order of members in struct hws_topology_map is cas_wl, cas_l. The
comments in the original db-88f6820-gp.c had this wrong and have been
copied to other Armada-385 based boards. Practically this hasn't made a
difference since all these boards set both cas_wl and cas_l to 0
(autodetect) but if there were ever a board that did need to set these
explicitly they would run into unexpected issued.

Update the comments to reflect the correct order of structure members.

Reported-by: Tobi Wulff <tobi.wulff@alliedtelesis.co.nz>
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-11-30 08:30:59 +01:00
Baruch Siach
f86474e281 arm64: mvebu: armada-7k/8k: drop useless #ifdef
CONFIG_ENV_IS_IN_NAND has been removed in commit 2be296538e (Convert
CONFIG_ENV_IS_IN_MMC/NAND/UBI and NOWHERE to Kconfig).
CONFIG_ENV_IS_IN_SPI_FLASH has been removed in commit 91c868fe7c
(Convert CONFIG_ENV_IS_IN_SPI_FLASH to Kconfig). The environment #ifdef
is now empty. Remove it.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-11-30 08:30:27 +01:00
Sean Nyekjaer
926c8b2e32 arm: mvebu: enable boot from NAND
Check if we are booting from NAND and let the bootrom
continue to load the rest of the bootloader

Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-11-30 08:30:27 +01:00
Sean Nyekjaer
e83e2b3900 arm: mvebu: fix boot from UART when in fallback mode
It's the first 8 bits of the bootrom error register that
contain the boot error/fallback error code. Let's check that
and continue to boot from UART.

Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-11-30 08:29:59 +01:00
Sean Nyekjaer
348b488f5e arm: mvebu: add nand pins
Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-11-30 08:25:06 +01:00
Sean Nyekjaer
e13921a951 fix: nand: pxa3xx: fix defined but not used warnings
bbt_mirror_descr and bbt_main_descr is defined but not used
when compiling without CONFIG_SYS_NAND_USE_FLASH_BBT set.

Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-11-30 08:25:06 +01:00
Stefan Roese
aa7839b39c x86: lib: Implement standalone __udivdi3 etc instead of libgcc ones
This patch removes the inclusion of the libgcc math functions and
replaces them by functions coded in C, taken from the coreboot
project. This makes U-Boot building more independent from the toolchain
installed / available on the build system.

The code taken from coreboot is authored from Vadim Bendebury
<vbendeb@chromium.org> on 2014-11-28 and committed with commit
ID e63990ef [libpayload: provide basic 64bit division implementation]
(coreboot git repository located here [1]).

I modified the code so that its checkpatch clean without any
functional changes.

[1] git://github.com/coreboot/coreboot.git

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2017-11-30 13:50:17 +08:00