It is useful to be able to load U-Boot onto a board even if is it already
running EFI. This can allow access to the U-Boot command interface, flexible
booting options and easier development.

The easiest way to do this is to build U-Boot as a binary blob and have an
EFI stub copy it into RAM. Add support for this feature, targeting 32-bit
initially.

Also add a way to detect when U-Boot has been loaded via a stub. This goes
in common.h since it needs to be widely available so that we avoid redoing
initialisation that should be skipped.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Improvements to how the payload is built:
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Tested-by: NBin Meng <bmeng.cn@gmail.com>

Add configuration and Kconfig changes for this board.
Signed-off-by: NBen Stoltz <stoltz@google.com>
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

When running U-Boot as an EFI application we cannot relocate since we do not
have relocation information. U-Boot has already been relocated to a suitable
address.

Add a global_data flag to control skipping relocation.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

These are now in the device tree so we don't need to use the CONFIG options.
Drop them.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

This is provided in Kconfig so we don't need it here.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Move this config option to Kconfig and tidy up.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Drop these from the header file and use Kconfig instead.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

At present this function does not specify its return value. Fix it.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Rather than using 0xff in the code, add a constant.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

When running as an EFI application, U-Boot must request memory from EFI,
and provide access to the boot services U-Boot needs.

Add library code to perform these tasks. This includes efi_main() which is
the entry point from EFI. U-Boot is built as a shared library.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add a convention that the generic global_data only occupy the bottom 16 bits
of the flags word, so that there is less chance of a conflict. At present the
x86 flags conflict.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

These will be used for efi.h both for U-Boot running as an EFI application
and as a payload. They come from Linux 4.1.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Provide the types necessary to relocate 64-bit images.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add PCI IRQ routing information in the board device tree and enable
writing PIRQ routing table and MP table.
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Acked-by: NSimon Glass <sjg@chromium.org>

Intel Bayley Bay board is a BayTrail based board. Add this board
with existing baytrail fsp support.
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Acked-by: NSimon Glass <sjg@chromium.org>

On Intel BayTrail SoC, there is a legacy UART (I/O 0x3f8) integrated
into the SoC which is enabled by the FSP. Remove the smsc47x superio
initialization codes.
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This patch replaces not existing addr_uboot environment variable by
loadaddr at get_uboot_net and burn_uboot_xxx commands. Otherwise these
commands are broken.
Signed-off-by: NVitaly Andrianov <vitalya@ti.com>
Acked-by: NNishanth Menon <nm@ti.com>

Add USB XHCI support for ls2085rdb platform
Signed-off-by: NNikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

Add USB XHCI support for ls2085qds platform
Signed-off-by: NNikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

By default the bstopre value has been set to 0x100, used to be 1/4
value of refint. Modern DDR has increased the refresh time. Adjust
to 1/4 of refresh interval dynamically. Individual board can still
override this value in board ddr file, or to use auto-precharge.
Signed-off-by: NYork Sun <yorksun@freescale.com>

PCIe extends device's configuration space to 4k and provides
extended capability. The patch adds function to find them.
The code is ported from Linux PCIe driver.
Signed-off-by: NMinghuan Lian <Minghuan.Lian@freescale.com>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

MC firware version 8.0.0 contains new command flags. This patch
contains modifications in FLIB files to support the new command flags.
Signed-off-by: NItai Katz <itai.katz@freescale.com>
Signed-off-by: NPrabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

The sampling of the oscillator can be done in multiple modes for
generating the entropy value. By default, this is set to von
Neumann. This patch changes the sampling to raw data, since it
has been discovered that the generated entropy has a better
'quality'.
Signed-off-by: NAlex Porosanu <alexandru.porosanu@freescale.com>
Acked-by: Ruchika Gupta<ruchika.gupta@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

The entropy delay (the length in system clocks of each
entropy sample) for the RNG4 block of CAAM is dependent
on the frequency of the SoC. By elaborate methods, it
has been determined that a good starting value for all
platforms integrating the CAAM IP is 3200. Using a
higher value has additional benefit of  speeding up
the process of instantiating the RNG, since the entropy
delay will be increased and instantiation of the RNG
state handles will be reattempted by the driver. If the
starting value is low, for certain platforms, this can
lead to a quite lengthy process.
This patch changes the starting value of the length of
the entropy sample to 3200 system clocks.
In addition to this change, the attempted entropy delay
values are now printed on the console upon initialization
of the RNG block.
Signed-off-by: NAlex Porosanu <alexandru.porosanu@freescale.com>
Acked-by: Ruchika Gupta<ruchika.gupta@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

The rtfrqmax & rtfrqmin set the bounds of the expected frequency of the
oscillator, when SEC runs at its maximum frequency. For certain platforms
(f.i. T2080), the oscillator is very fast and thus if the SEC runs at
a lower than normal frequency, the ring oscillator is incorrectly detected
as being out of bounds.

This patch effectively disables the maximum frequency check, by setting a
high enough maximum allowable frequency for the oscillator. The reasoning
behind this is that usually a broken oscillator will run too slow
(i.e. not run at all) rather than run too fast.
Signed-off-by: NAlex Porosanu <alexandru.porosanu@freescale.com>
Acked-by: Ruchika Gupta<ruchika.gupta@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

To improve eTSEC performance on LS1021A Rev2.0,
snooping of all transmit frames from memory and
all transmit BD memory accesses in enabled.
Signed-off-by: NAlison Wang <alison.wang@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

Signed-off-by: NTang Yuantian <Yuantian.Tang@freescale.com>
Acked-by: NAlison Wang <alison.wang@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

Enable bootscript support in secure boot for establishing
chain of trust on LS1021atwr.
Signed-off-by: NGaurav Rana <gaurav.rana@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

For ls1021a, Reserve secure code in to memory in case OCRAM
is needed by other usage.
Signed-off-by: NZhuoyu Zhang <Zhuoyu.Zhang@freescale.com>
Acked-by: NAlison Wang <alison.wang@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

1. Add USDHC, I2C, UART, 74LV, USB, QSPI support.
2. Support SPL
3. CONFIG_MX6UL_14X14_EVK_EMMC_REWORK is introduced, this board default
   supports sd for usdhc2, but can do hardware rework to make usdhc2 support
   emmc.

Boot Log:
U-Boot SPL 2015.07-rc3-00124-g35d727b (Jul 20 2015 - 18:40:59)
reading u-boot.img
reading u-boot.img

U-Boot 2015.07-rc3-00124-g35d727b (Jul 20 2015 - 18:40:59 +0800)

CPU:   Freescale i.MX6UL rev1.0 792 MHz (running at 396 MHz)
CPU:   Commercial temperature grade (0C to 95C)CPU:   Thermal invalid data, fuse: 0x0
 - invalid sensor device
 Reset cause: POR
 Board: MX6UL 14x14 EVK
 I2C:   ready
 DRAM:  512 MiB
 MMC:   FSL_SDHC: 0, FSL_SDHC: 1
 *** Warning - bad CRC, using default environment

 In:    serial
 Out:   serial
 Err:   serial
 Net:   CPU Net Initialization Failed
 No ethernet found.
 Hit any key to stop autoboot:  0
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>

i.MX6UL's DRAM space starts from 0x80000000, same to i.MX6SX, so use
same address with i.MX6SX.
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>

DRAM space starts from 0x80000000 for i.MX6UL, so need to
fix LOADADDR, SYS_TEXT_BASE.
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>

Since i.MX6UL use A7 core, but not A9 core, we do not need
the erratas for i.MX6UL.
Signed-off-by: NYe.Li <B37916@freescale.com>
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>

Add kconfig options for various SPI flashes and use them in cm-fx6 defconfig.

Cc: Jagan Teki <jteki@openedev.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NNikita Kiryanov <nikita@compulab.co.il>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>

Add Kconfig options for USB keyboard and use them for cm-fx6.

Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NNikita Kiryanov <nikita@compulab.co.il>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>

Add USB_EHCI_MX6 option to menuconfig and use it when migrating cm-fx6 usb
config to defconfig.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NNikita Kiryanov <nikita@compulab.co.il>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>

Move CONFIG_CMD_* options that can be selected in menuconfig to cm-fx6
defconfig.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NNikita Kiryanov <nikita@compulab.co.il>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>

Implement a cm-fx6 specific board_video_skip() to provide the option to not
initialize the display.

The new function does not init display if the environment variable "panel" is
not defined, or if it is set to an unsupported value.

Collateral changes:
- Don't use the global displays array (it's CONFIG_IMX_VIDEO_SKIP specific).
- Don't use detect_hdmi(), since env controlled init makes it unnecessary.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NNikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: NIgor Grinberg <grinberg@compulab.co.il>

1. Add DDR script for mx6qpsabreauto board.
2. On CPU3 board, enet RGMII tx clock is from internal PLL. Set the GPR5[9]
   and init the enet pll output to 125Mhz.
3. On CPU3 board, SW1ABC=VDDSOC_IN, SW2=VDDARM_IN.

Build target: mx6qpsabreauto_config

Boot Log:
U-Boot 2015.07-rc2-00071-gfd985ff (Jun 29 2015 - 22:10:55 +0800)

CPU:   Freescale i.MX6QP rev1.0 996 MHz (running at 792 MHz)
CPU:   Automotive temperature grade (-40C to 125C) at 34C
Reset cause: POR
Board: MX6Q-Sabreauto revA
I2C:   ready
DRAM:  2 GiB
PMIC:  PFUZE100 ID=0x10
Flash: 32 MiB
NAND:  0 MiB
MMC:   FSL_SDHC: 0
*** Warning - bad CRC, using default environment

No panel detected: default to HDMI
Display: HDMI (1024x768)
In:    serial
Out:   serial
Err:   serial
Net:   FEC [PRIME]
Hit any key to stop autoboot:  0

Note:
In this patch, we still add a new config mx6qpsabreauto_config,
since SPL is not supported now, and IMX_CONFIG is needed at
build time, so add this config. Future, when SPL is converted,
this config can be removed.
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>
Signed-off-by: NRobin Gong <b38343@freescale.com>
Signed-off-by: NYe.Li <B37916@freescale.com>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>

Detect the SOC and board variant at runtime and change the dtb name,
but not hardcoding the fdt_file env variable.

Take the following patch as a reference.
Íd58699b157df75f1aa0b363ea9c21add21a0c
"mx6cuboxi: Load the correct 'fdtfile' variable"
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NStefano Babic <sbabic@denx.de>