X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Farm%2Fmach-socfpga%2Fboard.c;h=26d84be6e963d9b3085a6f27d13d3b70585d7b45;hb=8c9f247a1a2031b200c04f297d5b9ae1353d9d90;hp=189e12a668398c02de8380dbad7558b63e05d18e;hpb=8ada17dde84954e36d8bc6ff62a6956686eb0ec4;p=u-boot

diff --git a/arch/arm/mach-socfpga/board.c b/arch/arm/mach-socfpga/board.c
index 189e12a668..26d84be6e9 100644
--- a/arch/arm/mach-socfpga/board.c
+++ b/arch/arm/mach-socfpga/board.c
@@ -18,7 +18,20 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-void s_init(void) {}
+void s_init(void) {
+#ifndef CONFIG_ARM64
+	/*
+	 * Preconfigure ACTLR, make sure Write Full Line of Zeroes is disabled.
+	 * This is optional on CycloneV / ArriaV.
+	 * This is mandatory on Arria10, otherwise Linux refuses to boot.
+	 */
+	asm volatile(
+		"mcr p15, 0, %0, c1, c0, 1\n"
+		"isb\n"
+		"dsb\n"
+	::"r"(0x0));
+#endif
+}
 
 /*
  * Miscellaneous platform dependent initialisations