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

sunxi: Complete i2c support for each supported platform

Sunxi platforms come with at least 3 TWI (I2C) controllers and some platforms
even have up to 5. This adds support for every controller on eac

sunxi: Complete i2c support for each supported platform

Sunxi platforms come with at least 3 TWI (I2C) controllers and some platforms
even have up to 5. This adds support for every controller on each supported
platform, which is especially useful when using expansion ports on single-board-
computers.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

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sunxi: video: Fix VIDEO_LCD_PANEL_I2C being enabled by default

Fix a typo in board/sunxi/Kconfig which caused VIDEO_LCD_PANEL_I2C to be
enabled on all sunxi boards. Also fix a compile error which sh

sunxi: video: Fix VIDEO_LCD_PANEL_I2C being enabled by default

Fix a typo in board/sunxi/Kconfig which caused VIDEO_LCD_PANEL_I2C to be
enabled on all sunxi boards. Also fix a compile error which shows up once
VIDEO_LCD_PANEL_I2C is actually disabled on most boards as it should be.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

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

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

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

sunxi: Machine id hack to prevent loading buggy sunxi-3.4 kernels

Right now U-Boot supports the CONFIG_OLD_SUNXI_KERNEL_COMPAT option,
which makes it go out of its way in limiting the selection of P

sunxi: Machine id hack to prevent loading buggy sunxi-3.4 kernels

Right now U-Boot supports the CONFIG_OLD_SUNXI_KERNEL_COMPAT option,
which makes it go out of its way in limiting the selection of PLL clock
frequencies and PMIC voltages in order not to upset outdated buggy
sunxi-3.4 kernel releases. And if the CONFIG_OLD_SUNXI_KERNEL_COMPAT
option is not set, then booting such old kernels exhibits various
failures at runtime. This is very user unfriendly, and there were
already several incidents when people wasted their time being hit
by these runtime failures and trying to debug them.

The right solution is not to add hacks and workarounds to the mainline
U-Boot, but to fix these bugs in the sunxi-3.4 kernel. And in fact,
the updated sunxi-3.4 kernels already exist. Still we need to follow
the 'Principle of Least Surprise' and U-Boot needs to ensure that
the old buggy kernels are not getting happily booted when the
CONFIG_OLD_SUNXI_KERNEL_COMPAT option is not set. And this patch
addresses this particular issue.

This patch makes U-Boot store the 'compatibility revision' number in
the top 4 bits of the machine id and pass it to the kernel. The old
buggy kernels will fail to load with a very much googlable error
message on the serial console (the "r1 = 0x100010bb" part of it):

"Error: unrecognized/unsupported machine ID (r1 = 0x100010bb)"

This error message can be documented in the linux-sunxi wiki with
proper explanations about how to resolve this situation and where
to get the necessary bugfixes for the sunxi-3.4 kernel.

The fixed sunxi-3.4 kernels implement a revision compatibility check
and clear the top 4 bits of the machine id if everything is alright.
By accepting the machine id with the bits 31:28 set to 1, the sunxi-3.4
kernel effectively certifies that it has the PLL5 clock speed and
AXP209 DCDC3 voltage fixes applied.

It is still possible to set the CONFIG_OLD_SUNXI_KERNEL_COMPAT option
in U-Boot if the user desires to use an outdated unpatched sunxi-3.4
kernel.

Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

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sunxi: Set the /chosen/stdout-path fdt property for sunxi boards

While discussing with some people how to get the Linux kernel to do the
right thing wrt sending output to both the serial console and

sunxi: Set the /chosen/stdout-path fdt property for sunxi boards

While discussing with some people how to get the Linux kernel to do the
right thing wrt sending output to both the serial console and the
hdmi out / lcd screen when booting on ARM devices, Grant Likely pointed out
that there already is a solution for this.

All we need to do is set the /chosen/stdout-path fdt property, and if no
console= arguments were specified on the kernel commandline the kernel
will honor this and add this device as a console (next to the primary
video output on hdmi).

And u-boot already has support for setting this, all we need to do is
define OF_STDOUT_PATH and then everything will just work ootb, without
people needing to meddle with adding console= arguments in extlinux.conf .

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Reviewed-by: Tom Rini <trini@ti.com>

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sunxi: video: Add support for LCD panels which need to be configured via i2c

This commits adds support for configuring a a bitbang i2c controller, which
is used on some boards to configure the LCD p

sunxi: video: Add support for LCD panels which need to be configured via i2c

This commits adds support for configuring a a bitbang i2c controller, which
is used on some boards to configure the LCD panel (via i2c).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

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Revert "sunxi: configs/sunxi-common.h: Enable CONFIG_CMD_PART"

This reverts commit bd2a4888b123713adec271d6c8040ca9f609aa2f which was
an older version of af21f2f which is what we actually want in.

Revert "sunxi: configs/sunxi-common.h: Enable CONFIG_CMD_PART"

This reverts commit bd2a4888b123713adec271d6c8040ca9f609aa2f which was
an older version of af21f2f which is what we actually want in.

Signed-off-by: Tom Rini <trini@ti.com>

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

sunxi: Normalise FEL support

Make sunxi's FEL code fit with the normal U-Boot boot sequence instead of
creating its own. There are some #ifdefs required in start.S. Future work
will hopefully remove

sunxi: Normalise FEL support

Make sunxi's FEL code fit with the normal U-Boot boot sequence instead of
creating its own. There are some #ifdefs required in start.S. Future work
will hopefully remove these.

This series is available at u-boot-dm, branch sunxi-working.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

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sunxi: video: Do not use CONFIG_SYS_MEM_TOP_HIDE for the framebuffer

Do not use CONFIG_SYS_MEM_TOP_HIDE for the framebuffer, instead override
board_get_usable_ram_top to make sure that u-boot is not

sunxi: video: Do not use CONFIG_SYS_MEM_TOP_HIDE for the framebuffer

Do not use CONFIG_SYS_MEM_TOP_HIDE for the framebuffer, instead override
board_get_usable_ram_top to make sure that u-boot is not relocated into the
area where we want to use the framebuffer, and patch the devicetree from
sunxi_simplefb_setup() to tell the kernel to not touch the framebuffer.

This makes u-boot properly see the framebuffer as dram, and initalize the
level 2 cache for it, fixing the very slow cfb scrolling problem.

As an added bonus this stops us from reserving the framebuffer when simplefb
is not used because an older kernel is booted, or hdp is used and no hdmi
cable was plugged in, freeing up the memory for kernel use in these cases.

Reported-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

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

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

dm: Kconfig: Move CONFIG_SYS_MALLOC_F_LEN to Kconfig

Move this option to Kconfig and update all boards.
Signed-off-by: Simon Glass <sjg@chromium.org>

dm: sunxi: Move driver model CONFIGs to Kconfig

Remove driver model CONFIGs from the board config headers and use Kconfig
instead.

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

dm: sunxi: Move driver model CONFIGs to Kconfig

Remove driver model CONFIGs from the board config headers and use Kconfig
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

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dm: Add CMD_DM and CMD_DEMO to Kconfig

Add Kconfig settings for these two options.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

sunxi: configs/sunxi-common.h: Enable CONFIG_CMD_PART

The recent changes to config_distro_bootcmd.h require CONFIG_CMD_PART to be
defined, as the default bootcmd not uses the "part" command.

This f

sunxi: configs/sunxi-common.h: Enable CONFIG_CMD_PART

The recent changes to config_distro_bootcmd.h require CONFIG_CMD_PART to be
defined, as the default bootcmd not uses the "part" command.

This fixes sunxi boards not booting with v2015.04-rc1.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

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

sunxi: Only enable i2c support in the SPL when needed

We do not need i2c support in the SPL when there is no PMIC (some sun4i
boards), or when the PMIC is not using i2c such as on sun6i and sun8i.

sunxi: Only enable i2c support in the SPL when needed

We do not need i2c support in the SPL when there is no PMIC (some sun4i
boards), or when the PMIC is not using i2c such as on sun6i and sun8i.

This reduces the SPL size from (e.g.) 21812 to 19260 bytes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

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

sunxi: Use a common CONFIG_SYS_PROMPT

The CPU info is already logged during boot e.g.
CPU: Allwinner A20 (SUN7I)
so the prompt is just one more thing to change for each new SoC, just makes it

sunxi: Use a common CONFIG_SYS_PROMPT

The CPU info is already logged during boot e.g.
CPU: Allwinner A20 (SUN7I)
so the prompt is just one more thing to change for each new SoC, just makes it
"sunxi#" instead.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

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sunxi: Hookup OTG USB controller support

Hookup OTG USB controller support and enable the otg controller + USB-keyb
on various tablets.

This allows tablet owners to interact with u-boot without nee

sunxi: Hookup OTG USB controller support

Hookup OTG USB controller support and enable the otg controller + USB-keyb
on various tablets.

This allows tablet owners to interact with u-boot without needing to solder
a serial console onto their tablet PCB.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

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sunxi: Restore lowlevel_init usage

2 recent sunxi changes have removed the usage of lowlevel_init by moving some
code around and then setting CONFIG_SKIP_LOWLEVEL_INIT.
This is problematic for 2 rea

sunxi: Restore lowlevel_init usage

2 recent sunxi changes have removed the usage of lowlevel_init by moving some
code around and then setting CONFIG_SKIP_LOWLEVEL_INIT.
This is problematic for 2 reasons:

1) It does not just stop s_init from being called, it also stops
cpu_init_cp15 from getting called, which is undesirable.

2) We want u-boot.bin to be usable standalone, without SPL, some people e.g.
use an upstream u-boot.bin together with Allwinner's boot0 loader. So
u-boot.bin must (re)initialize the gpios, timer, etc.

This commit restores the lowlevel_init / s_init usage, while keeping the
changes to no longer use the global-data (gd) struct in the SPL.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

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