arm: am57xx: cl-som-am57x: remove board support

[oweals/u-boot.git] / arch / arm / mach-socfpga / board.c

diff --git a/arch/arm/mach-socfpga/board.c b/arch/arm/mach-socfpga/board.c
index 38e12a41a305cc7d956c3980b3cab0bece0c946c..7c8c05cc3194a61f2fbf1efe07f7459eb446d39b 100644 (file)
--- a/arch/arm/mach-socfpga/board.c
+++ b/arch/arm/mach-socfpga/board.c
@@ -7,7 +7,10 @@
 
 #include <common.h>
 #include <errno.h>
+#include <fdtdec.h>
 #include <asm/arch/reset_manager.h>
+#include <asm/arch/clock_manager.h>
+#include <asm/arch/misc.h>
 #include <asm/io.h>
 
 #include <usb.h>
@@ -15,7 +18,22 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-void s_init(void) {}
+void s_init(void) {
+#ifndef CONFIG_ARM64
+       /*
+        * Preconfigure ACTLR and CPACR, make sure Write Full Line of Zeroes
+        * is disabled in ACTLR.
+        * 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"
+               "mcr p15, 0, %0, c1, c0, 2\n"
+               "isb\n"
+               "dsb\n"
+       ::"r"(0x0));
+#endif
+}
 
 /*
  * Miscellaneous platform dependent initialisations