Commit 86acdce2ba88 ("common: add config for board_init() call")
introduced CONFIG_BOARD_INIT option. This option can be disabled for the
boards where board_init() function is not needed. Remove empty
board_init() calls for all boards where it's possible, and disable
CONFIG_BOARD_INIT in all related defconfigs.

This cleanup was made semi-automatically using these scripts: [1].

No functional change, but the binary size for the modified boards is
reduced a bit.

[1] https://github.com/joe-skb7/uboot-convert-scripts/tree/master/remove-board-init

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Tested-by: Adam Ford <aford173@gmail.com> #imx8mm_beacon
Tested-by: Bryan Brattlof <bb@ti.com>
Acked-by: Peng Fan <peng.fan@nxp.com>  #NXP boards

Use default value of malloc size coming from Kconfig, instead of
board specific override.

Signed-off-by: Udit Kumar <u-kumar1@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

Siddharth Vadapalli <s-vadapalli@ti.com> says:

This series enables USB DFU and USB Mass Storage functionality for
AM62, AM62-LP, AM62A, AM62P and J722S SoCs.

Link: https://lore.kernel.org/r/20250210112239.2639009-1-s-vadapalli@ti.com

The USB0 instance of USB on AM62 SoC when configured to operate in the
Gadget mode of operation can be used to mount an MMC/SD card on the USB
Host. Hence, enable support for the USB Mass Storage (ums) command.

Since this config fragment corresponds to USB DFU functionality which
configures the USB Controller in Gadget mode of operation, other SoCs
which include this fragment for DFU functionality can make use of the
USB MASS Storage functionality as well.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>

OSPI flash writing was broken on am62x SKs as the OSPI flash device has a
256k sector size but was set to 20k. This breaks OSPI flash writes because
the current implementation of the SF DFU backend requires that the DFU data
buffer size be the same as the sector erase size, and the USB DFU config
fragment (for both A53 and R5) reduced the size of the DFU data buffer,
presumably so that it can fit into SPL's much smaller heap.

Change the SYS_DFU_DATA_BUF_SIZE to the erase sector size, which still fits
within the post-relocation heap size in SPL.

Fixes: dfc2dff5a844 ("configs: am62x_evm_*: Enable USB and DFU support")

Signed-off-by: Jonathan Humphreys <j-humphreys@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

CONFIG_USB_XHCI_DWC3 is not required for AM62x as the XHCI
driver is registered through the dwc3-generic driver.

CONFIG_USB_XHCI_DWC3 causes problems by hijacking the
USB controller even if it is not set for Host mode in
device tree.

'dm tree' output after 'usb start' is fixed from

 simple_bus    5  [ + ]   dwc3-am62             |   |-- dwc3-usb@f900000
 usb_gadget    0  [   ]   dwc3-generic-periphe  |   |   |-- usb@31000000
 usb           0  [ + ]   xhci-dwc3             |   |   `-- usb@31000000
 usb_hub       0  [ + ]   usb_hub               |   |       `-- usb_hub
 simple_bus    6  [ + ]   dwc3-am62             |   |-- dwc3-usb@f910000
 usb           1  [ + ]   dwc3-generic-host     |   |   |-- usb@31100000
 usb_hub       1  [ + ]   usb_hub               |   |   |   `-- usb_hub
 usb           1  [ + ]   xhci-dwc3             |   |   `-- usb@31100000
 usb_hub       2  [ + ]   usb_hub               |   |       `-- usb_hub

[notice that 'xhci-dwc3' and 'usb_hub' drivers are probed
 for both USB instances although the first instance
 is supposed to be 'peripheral' only]

to

 simple_bus    5  [   ]   dwc3-am62             |   |-- dwc3-usb@f900000
 usb_gadget    0  [   ]   dwc3-generic-periphe  |   |   `-- usb@31000000
 simple_bus    6  [ + ]   dwc3-am62             |   |-- dwc3-usb@f910000
 usb           1  [ + ]   dwc3-generic-host     |   |   `-- usb@31100000
 usb_hub       0  [ + ]   usb_hub               |   |       `-- usb_hub

Fixes: dfc2dff5a844 ("configs: am62x_evm_*: Enable USB and DFU support")
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>

Provide config fragments to enable USB host as well as USB gadget and DFU
support for a53 and r5. This relevant fragment is included into the
am62x EVM a53 defconfig. For the r5, due to the smaller available size,
the config fragment also disables support for persistent storage to free
up space for USB support. This fragment needs to be included is DFU
booting is desired.

The CONFIG_DFU_SF option is placed in the defconfig rather than the
fragment as this is known not to be supported on all boards that can
support DFU.

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>