arm: socfpga: Add DT support for SoCFPGA and add socfpga_socrates target
authorStefan Roese <sr@denx.de>
Fri, 7 Nov 2014 13:10:41 +0000 (14:10 +0100)
committerMarek Vasut <marex@denx.de>
Fri, 7 Nov 2014 14:58:31 +0000 (15:58 +0100)
commit51c580c6c92c01884f520f4ffaeb6885ee8e666e
treec4bac3ab6e91290d48d81b661e9be37d205fdc12
parent116f5d5baa5d6ff3f244896b5a7c59ad59c71f87
arm: socfpga: Add DT support for SoCFPGA and add socfpga_socrates target

This patch includes the latest DT sources for socfpga from the current
Linux kernel. And enables CONFIG_OF_CONTROL for the new build target
"socfpga_socrates" (the EBV SoCrates board) to make use of this new DT
support.

Until this patch, the only SoCFPGA U-Boot target in mainline is
"socfpga_cyclone5". This build target is not (yet) changed to support
DT. So nothing changes for this target. Even though the long-term
goal should be to move all SoCFPGA targets over to DT.

One of the reasons to enable DT support in SoCFPGA is, that I need to
support multiple different SPI controllers for this platform. This is
the QSPI Cadence controller and the Designware SPI master controller.
Both are implemented in the SoCFPGA. And enabling both controllers is
only possible by using the new driver model (DM). The DM SPI code
only supports DT based probing. So it was easier to move SoCFPGA to
DT than to add the (deprecated) platform-data based probing to the
DM SPI suport.

Note that the image with the dtb embedded is u-boot-dtb.img. This needs
to be used now for those DT enabled boards instead of u-boot.img.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Vince Bridgers <vbridger@altera.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Pavel Machek <pavel@denx.de>
Cc: Simon Glass <sjg@chromium.org>
arch/arm/dts/Makefile
arch/arm/dts/socfpga.dtsi [new file with mode: 0644]
arch/arm/dts/socfpga_cyclone5.dtsi [new file with mode: 0644]
arch/arm/dts/socfpga_cyclone5_socrates.dts [new file with mode: 0644]
arch/arm/include/asm/arch-socfpga/gpio.h [new file with mode: 0644]
configs/socfpga_socrates_defconfig [new file with mode: 0644]
include/dt-bindings/reset/altr,rst-mgr.h [new file with mode: 0644]