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mkconfig: add support for SPL CPU

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Add support for specifying a differnt CPU for main u-boot and SPL
u-boot builds.  This is done by adding an optional SPL CPU after the
main CPU in boards.cfg as follows:

     normal_cpu:spl_cpu

This this case CPU will be set to "normal_cpu" during the main u-boot
build and "spl_cpu" during the SPL build.

Signed-off-by: Allen Martin <amartin@nvidia.com>
This commit is contained in:
Allen Martin
2012-04-19 07:58:57 +00:00
committed by Wolfgang Denk
parent f28e26951a
commit d22650afab
3 changed files with 31 additions and 1 deletions
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12
doc/README.SPL
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@@ -66,3 +66,15 @@ CONFIG_SPL_DMA_SUPPORT (drivers/dma/libdma.o)
CONFIG_SPL_POST_MEM_SUPPORT (post/drivers/memory.o)
CONFIG_SPL_NAND_LOAD (drivers/mtd/nand/nand_spl_load.o)
CONFIG_SPL_SPI_LOAD (drivers/mtd/spi/spi_spl_load.o)
Normally CPU is assumed to be the same between the SPL and normal
u-boot build. However it is possible to specify a different CPU for
the SPL build for cases where the SPL is expected to run on a
different CPU model from the main u-boot. This is done by specifying
an SPL CPU in boards.cfg as follows:
normal_cpu:spl_cpu
This this case CPU will be set to "normal_cpu" during the main u-boot
build and "spl_cpu" during the SPL build.