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riscv: Kconfig: Add SPL_ZERO_MEM_BEFORE_USE

Add a Kconfig item to allow SPL to clear stack/GD/malloc area before
using them.

Signed-off-by: Bo Gan <ganboing@gmail.com>
Signed-off-by: Shengyu Qu <wiagn233@outlook.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Shengyu Qu 10 mēneši atpakaļ
vecāks
revīzija
d365f6646a
1 mainītis faili ar 8 papildinājumiem un 0 dzēšanām
  1. 8 0
      arch/riscv/Kconfig

+ 8 - 0
arch/riscv/Kconfig

@@ -64,6 +64,14 @@ config SPL_SYS_DCACHE_OFF
 	help
 	  Do not enable data cache in SPL.
 
+config SPL_ZERO_MEM_BEFORE_USE
+	bool "Zero memory before use"
+	depends on SPL
+	default n
+	help
+	  Zero stack/GD/malloc area in SPL before using them, this is needed for
+	  Sifive core devices that uses L2 cache to store SPL.
+
 # board-specific options below
 source "board/AndesTech/ae350/Kconfig"
 source "board/emulation/qemu-riscv/Kconfig"