This patch set refactors mxc_spi as described in
http://lists.denx.de/pipermail/u-boot/2010-March/068791.html
and requested in
http://lists.denx.de/pipermail/u-boot/2012-January/116023.html
in order to add support for the MX6Q in general and the mx6qsabrelite
specifically.
Patch 1 simply moves the conditional parts of mxc_spi.c into the
respective CPU-specific imx-regs.h files.
Patch 2 adds general support for SPI to the i.MX6.
Patch 3 adds support to the mx6qsabrelite board
Patch 4 modifies the 'sf' command to allow a default bus and chip-select
to be specified by board headers. This allows a bare 'sf' probe command:
U-Boot> sf probe
instead of the more cumbersome usage when a GPIO is tacked onto
the chip-select. Otherwise, this command-line would be needed
to specify GP3:19 on SabreLite:
U-Boot> sf probe 0x5300
Patch 5 provides a description of usage and configuration of CONFIG_CMD_SF.
Patch 6 adds default chip-select values for mx6qsabrelite platform.
Patch 7 adds reference macros for use in storing the environment
in serial flash to match the use on Freescale's U-Boot release
This patch set has been compiled against the following configurations,
but only tested on mx6qsabrelite:
mx6qsabrelite
mx51evk
mx31pdk
mx35pdk
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