Kconfig: Move SPL settings into their own file
Move the SPL settings into common/spl where most of the SPL code is kept.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
new file mode 100644
index 0000000..2d2256a
--- /dev/null
+++ b/common/spl/Kconfig
@@ -0,0 +1,67 @@
+config SUPPORT_SPL
+ bool
+
+config SUPPORT_TPL
+ bool
+
+config SPL
+ bool
+ depends on SUPPORT_SPL
+ prompt "Enable SPL"
+ help
+ If you want to build SPL as well as the normal image, say Y.
+
+config SPL_SYS_MALLOC_SIMPLE
+ bool
+ depends on SPL
+ prompt "Only use malloc_simple functions in the SPL"
+ help
+ Say Y here to only use the *_simple malloc functions from
+ malloc_simple.c, rather then using the versions from dlmalloc.c;
+ this will make the SPL binary smaller at the cost of more heap
+ usage as the *_simple malloc functions do not re-use free-ed mem.
+
+config SPL_STACK_R
+ depends on SPL
+ bool "Enable SDRAM location for SPL stack"
+ help
+ SPL starts off execution in SRAM and thus typically has only a small
+ stack available. Since SPL sets up DRAM while in its board_init_f()
+ function, it is possible for the stack to move there before
+ board_init_r() is reached. This option enables a special SDRAM
+ location for the SPL stack. U-Boot SPL switches to this after
+ board_init_f() completes, and before board_init_r() starts.
+
+config SPL_STACK_R_ADDR
+ depends on SPL_STACK_R
+ hex "SDRAM location for SPL stack"
+ help
+ Specify the address in SDRAM for the SPL stack. This will be set up
+ before board_init_r() is called.
+
+config SPL_STACK_R_MALLOC_SIMPLE_LEN
+ depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE
+ hex "Size of malloc_simple heap after switching to DRAM SPL stack"
+ default 0x100000
+ help
+ Specify the amount of the stack to use as memory pool for
+ malloc_simple after switching the stack to DRAM. This may be set
+ to give board_init_r() a larger heap then the initial heap in
+ SRAM which is limited to SYS_MALLOC_F_LEN bytes.
+
+config SPL_SEPARATE_BSS
+ depends on SPL
+ bool "BSS section is in a different memory region from text"
+ help
+ Some platforms need a large BSS region in SPL and can provide this
+ because RAM is already set up. In this case BSS can be moved to RAM.
+ This option should then be enabled so that the correct device tree
+ location is used. Normally we put the device tree at the end of BSS
+ but with this option enabled, it goes at _image_binary_end.
+
+config TPL
+ bool
+ depends on SPL && SUPPORT_TPL
+ prompt "Enable TPL"
+ help
+ If you want to build TPL as well as the normal image and SPL, say Y.