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- Supports booting image without u-boot headers on stm32

- Don't pass structure to an arbitrary unaligned memory address
  and access it's members. Fill in the structyre and then memcpy
  it to the desired memory location.
- Don't access unaligned array members with aligned casts

Signed-off-by: Reinhard Mötzel <rmoetzel@z-laser.de>
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>

Now 10Mb/s link works in U-Boot.

RM 1947: Optimize ESDHC performance: reduce udelay in esdhc_send_cmd(); fine tune the clock settings

(cherry picked from commit 892cff3e23877fbb3b6550e66ceac87d21b97634)

RM 1947: Configure MMC and FSL_ESDHC drivers for the Ametek-2U board and K70-SOM, enable necessary workarounds

(cherry picked from commit d189fb147ed3b9c00306fd669685a4127b9488ee)

Conflicts:
	board/emcraft/k70-som/board.c
	include/configs/ametek-fpc.h

(cherry picked from commit 85502fd1becd71b365b71f4a8fd308ae4953025e)

Signed-off-by: Yuri Tikhonov <yur@emcraft.com>

	 and stm32f7-som-64-ext-bsb_config.

Return the configurable command for programming, as MT25Q doesn't
support the default SPINOR_OP_PP_4B command.

Change addressing to 4-byte mode for flashes greater than 16MiB

Based on information from ST:
  "Workarounds linked to Silicon Limitation:
    Extra data written in the FIFO at the end of a read transfer";

Add a new driver named "switch" for run-time selection of wanted devices in DT based on gpios:

    configuration_switch: configuration_switch {
        compatible = "emcraft,configuration-switch";
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_switch>;
    };

...
    pinctrl_switch: switch {
        st,pins {
            /* e5 = 4*16 + 5 = 69 */
            status_pullup = <&gpioe 5 IN
                PULL_UP PUSH_PULL LOW_SPEED>;
        };
    };

...

&usb_fs {
    ...
    configuration-switch-gpios = <&gpioe 5 GPIO_ACTIVE_LOW>;
};

if "tftp" fails.

Orise Tech OTM8009A LCD: MB1166 board from the STM32F769I-DISCO kit.

Default value of RCC_PLLSAICFGR.PLLSAIR=8 doesn't allow to set up
high speed LCD

This is to be able to program it in Linux wout necessity to reconfigure
MPU.
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>

Signed-off-by: Yuri Tikhonov <yur@emcraft.com>