arm: spl: Allow board_init_r() to run with a larger stack

[people/ms/u-boot.git] / Kconfig

diff --git a/Kconfig b/Kconfig
index 91a0618dbbea4000c2c0e9c0046f4c9bf1899495..b879461b964233fcf97ce537d22fd08551c31f15 100644 (file)
--- a/Kconfig
+++ b/Kconfig
@@ -96,6 +96,24 @@ config SPL
        help
          If you want to build SPL as well as the normal image, say Y.
 
+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 TPL
        bool
        depends on SPL && SUPPORT_TPL