[U-Boot] [PATCH 10/10] ARM: socfpga: arria10: add support for building Arria10

[Dinh Nguyen <dinguyen@opensource.altera.com>]

On 11/19/2015 04:45 PM, Marek Vasut wrote:
> On Thursday, November 19, 2015 at 10:35:47 PM, dinguyen at opensource.altera.com 
> wrote:
>> From: Dinh Nguyen <dinguyen@opensource.altera.com>
>>
>> Update Makefile to build Arria 10.
>>
>> Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
>> ---
>>  arch/arm/mach-socfpga/Makefile         | 7 +++++--
>>  arch/arm/mach-socfpga/arria10/Makefile | 7 +++++++
>>  2 files changed, 12 insertions(+), 2 deletions(-)
>>  create mode 100644 arch/arm/mach-socfpga/arria10/Makefile
>>
>> diff --git a/arch/arm/mach-socfpga/Makefile
>> b/arch/arm/mach-socfpga/Makefile index 316b326..0dbe9bb 100644
>> --- a/arch/arm/mach-socfpga/Makefile
>> +++ b/arch/arm/mach-socfpga/Makefile
>> @@ -6,15 +6,18 @@
>>  #
>>  # SPDX-License-Identifier:	GPL-2.0+
>>  #
>> -
>> +ifneq ($(CONFIG_TARGET_SOCFPGA_ARRIA10),y)
>>  obj-y	+= misc.o timer.o reset_manager.o system_manager.o 
> clock_manager.o \
>>  	   fpga_manager.o scan_manager.o
>>  obj-$(CONFIG_SPL_BUILD) += spl.o freeze_controller.o
>> -
>>  # QTS-generated config file wrappers
>>  obj-y	+= wrap_pll_config.o
>>  obj-$(CONFIG_SPL_BUILD) += wrap_iocsr_config.o wrap_pinmux_config.o	\
>>  			   wrap_sdram_config.o
>> +else
>> +obj-y	+= arria10/
> 
> So why exactly does A10 have it's own dedicated dir if most of the code
> is probably shared between A10 and AV/CV ?
> 

Yes, there are some sharing. But I think that there will be enough
differences that will ultimately warrant it's own directory. I think
with it's own directory, the Makefile changes stay a bit cleaner. I

One of the biggest differences is that the A10's SDRAM support is going
to be a bit ugly. The main point is that we need to program the FPGA
during U-Boot booting up with a ~>10 MB rbf file while being limited to
the OCRAM's size. I would like to contain this ugliness in it's own
directory.

Dinh