The ci_udc driver request allocation assumes that the endpoint descriptor
pointer is set to retrieve the endpoint number, but that is only true
when the endpoint is enabled. This results in a NULL ptr dereference
which for me happens to return 0 value. This causes the EP0 request
struct to be returned for other endpoints. Some gadget drivers like
fastboot and USB MS work fine, but ethernet does not.

Really, the ci_udc driver is the oddball here doing this EP0 special
case handling Stephen added. All the other drivers alloc/free functions
are pretty much the same with the only variation being the size of the
private struct. This could all be consolidated to a common function.
Signed-off-by: NRob Herring <robh@kernel.org>
Cc: Marek Vasut <marex@denx.de>
Acked-by: NStephen Warren <swarren@nvidia.com>

This makes more complex U-Boot scripts possible.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>

This patch adds the configuration options to boot via SDIO/MMC on the
Marvell DB-88F6820-GP Armada A38x board. The default boot device
is still SPI NOR flash.

To enable MMC booting on this board 2 things need to be changes:
a) Change kwbimage.cfg
   BOOT_FROM   sdio
b) In the config header select
   #define CONFIG_SPL_BOOT_DEVICE	SPL_BOOT_SDIO_MMC_CARD

The generated image needs to be copied to the first bootable MMC
partition:

dd if=u-boot-spl.kwb of=/dev/sdX1
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <eibach@gdsys.de>

This patch introduces the option to boot from a MMC card parition with
an offset. This can be done by using both defines together:

define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION 1
define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR    ((160 << 10) / 512)

The example above loads the main U-Boot at offset 160KiB from the MMC
partition 1.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <eibach@gdsys.de>
Cc: Tom Rini <trini@konsulko.com>

To use this offset for other boot device (like SDIO/MMC), lets rename
it to a more generic name. This will be used be the SDIO/MMC SPL boot
support for the A38x.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <eibach@gdsys.de>

This patch adds support to select the "sdio" as boot device in the
kwbimage.cfg file. This line selects this SDIO device:

BOOT_FROM  sdio

Tested on Marvell DB-88F6820-GP board.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <eibach@gdsys.de>

This patch adds basic SDIO/MMC booting support to MVEBU SoC's. Since
I don't know of a way to test the boot-device upon runtime, this patch
hardcodes the spl_boot_device instead.

Tested on Marvell DB-88F6820-GP board.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <eibach@gdsys.de>

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

This I2C device is used SoC-internally for controlling the DMD core.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The init code for UMC (Unified Memory Controller) and PLL has not
been mainlined yet, but U-boot proper should work.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Both "earlyprintk" and "loglevel=8" should be useful for the
development.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

To use FIT boot, we have to describe Image Tree Source in addition.
So, it is not intended for beginners.  Disable it by default.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The command "run tftpboot" downloads some files onto the RAM
via TFTP and boots the kernel.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Currently, the environment variables "norboot" and "nandboot" only
work with CONFIG_FIT, but we do not want to depend on CONFIG_FIT to
boot the kernel.

This commit adds environments useful for booting Linux with separate
uImage + ramdisk + DTB.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

For the record, describe exactly which device of which vendor
is used on this board.

I2C EEPROM is bound by the generic compatible string, "i2c-eeprom",
so this commit has no impact on the functionality.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

This patch adds SPL support for the Marvell DB-88F6820-GP board.
With this change, the bin_hdr from the original Marvell U-boot
is not needed any more on this board. The sources from bin_hdr
(SERDES/PHY and DDR setup) are now integrated in mainline
U-Boot. And this patch enables them for this board.
Signed-off-by: NStefan Roese <sr@denx.de>

Remove the incorrect PEX macros from the DDR header. And insert the
correct ones in ctrl_pex.h instead.
Signed-off-by: NStefan Roese <sr@denx.de>

This patch adds the DDR3 setup and training code taken from the Marvell
U-Boot repository. This code used to be included as a binary (bin_hdr)
into the Armada A38x boot image. Not linked with the main U-Boot. With this
code addition and the serdes/PHY setup code, the Armada A38x support
in mainline U-Boot is finally self-contained. So the complete image
for booting can be built from mainline U-Boot. Without any additional
external inclusion.

Note:
This code has undergone many hours (days!) of coding-style cleanup and
refactoring. It still is not checkpatch clean though, I'm afraid. As the
factoring of the code has so many levels of indentation that many lines
are longer than 80 chars.
Signed-off-by: NStefan Roese <sr@denx.de>

With the upcoming addition of the Armada 38x DDR support, which is not
compatible to the Armada XP DDR init code, we need to introduce a new
directory infrastructure. To support multiple Marvell DDR controller.

This will be the new structure:

     drivers/ddr/marvell/axp
     Supporting Armada XP (AXP) devices (and perhaps Armada 370)

     drivers/ddr/marvell/a38x
     Supporting Armada 38x devices (and perhaps Armada 39x)
Signed-off-by: NStefan Roese <sr@denx.de>

This code is ported from the Marvell bin_hdr code into mainline
SPL U-Boot. It needs to be executed very early so that the devices
connected to the serdes PHY are configured correctly.
Signed-off-by: NStefan Roese <sr@denx.de>

With the upcoming addition of the Armada 38x SPL support, which is not
compatible to the Armada XP SERDES init code, we need to introduce a new
directory infrastructure. So lets move the AXP serdes init code into
a new directory. This way the A38x code can be added in a clean way.
Signed-off-by: NStefan Roese <sr@denx.de>

The u-boot-spl.kwb build target needs the SPL text-base
(CONFIG_SPL_TEXT_BASE) as load and execution address.
Signed-off-by: NStefan Roese <sr@denx.de>

Only with disabled MMU its possible to switch the base register address on
Armada 38x. Without this the SDRAM located at >= 0x4000.0000 is also not
accessible, as its still locked to cache.
Signed-off-by: NStefan Roese <sr@denx.de>

Pin muxing needs to be done before UART output, since on A38x the UART
pins need some re-muxing for output to work.
Signed-off-by: NStefan Roese <sr@denx.de>

On A38x switching the regs base address without running from
SDRAM doesn't seem to work. So let the SPL still use the
default base address and switch to the new address in the
mail u-boot later.
Signed-off-by: NStefan Roese <sr@denx.de>

This is the same as f72d8320 "usb: ci_udc: fix warnings on 64-bit
builds", but more.
Signed-off-by: NStephen Warren <swarren@nvidia.com>

Without calling timer_init(), the xdelay() functions return immediately.
We need to call timer_init() early, so that these functions work and
the PHY and DDR init code works correctly.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Anton Schubert <anton.schubert@gmx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>

This patch initializes the SATA address windows on Armada XP and
allows it to work with the existing mvsata_ide driver.
It also adds the necessary configuration for the db-mv784mp-gp board.
Signed-off-by: NAnton Schubert <anton.schubert@gmx.de>
Tested-by: NStefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>

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: NMasahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>
Acked-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NLukasz Majewski <l.majewski@samsung.com>

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: NMasahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>
Acked-by: NSimon Glass <sjg@chromium.org>

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: NMasahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>
Acked-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NLukasz Majewski <l.majewski@samsung.com>

These two declarations in arch/x86/include/asm/interrupt.h conflict
with ones in include/linux/compat.h, so x86 boards cannot include
<linux/compat.h>.

The comment /* arch/x86/lib/interrupts.c */ is bogus now, and we do
not see any definitions of disable_irq() and enable_irq() in there.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This patch removes the wrl accessor function from the Marvell EHCI
driver by replacing it with the writel function.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Marek Vasut <marex@denx.de>

FASTBOOT is defined both by CONFIG_USB_FUNCTION_FASTBOOT AND CONFIG_CMD_FASTBOOT, so it doesn't
make much sense to have a CONFIG_USB_FASTBOOT prefix for fastboot-specific options, especially
given that other config options for fastboot use the CONFIG_FASTBOOT prefix.

This replaces the CONFIG_USB_FASTBOOT prefix with CONFIG_FASTBOOT, for consistency.
Signed-off-by: NPaul Kocialkowski <contact@paulk.fr>

Signed-off-by: NJiandong Zheng <jdzheng@broadcom.com>
Signed-off-by: NSteve Rae <srae@broadcom.com>

Add the required files for the Broadcom UDC OTG interface.
Signed-off-by: NJiandong Zheng <jdzheng@broadcom.com>
Signed-off-by: NSteve Rae <srae@broadcom.com>

Signed-off-by: NSteve Rae <srae@broadcom.com>
Tested-by: NLukasz Majewski <l.majewski@samsung.com>
Test HW: Exynos 4210 (trats), Exynos 5422 (Odroid XU3)