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: dfc2dff5a8 ("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>
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>
