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authorAllen Martin <amartin@nvidia.com>2012-04-19 07:58:57 +0000
committerWolfgang Denk <wd@denx.de>2012-08-09 22:37:42 +0200
commitd22650afabd6ce0003569f11b1605a69aac0f22c (patch)
tree168813d217bf2e8229459f92b6ca52ab094600b3 /doc
parentf28e26951a903f495912b89d2563d1b2e41caf76 (diff)
mkconfig: add support for SPL CPU
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>
Diffstat (limited to 'doc')
-rw-r--r--doc/README.SPL12
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/README.SPL b/doc/README.SPL
index 0276953db63..e4a5ac31f38 100644
--- a/doc/README.SPL
+++ b/doc/README.SPL
@@ -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.