summaryrefslogtreecommitdiff
path: root/arch/arm/cpu/armv7/keystone/init.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/cpu/armv7/keystone/init.c')
-rw-r--r--arch/arm/cpu/armv7/keystone/init.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/keystone/init.c b/arch/arm/cpu/armv7/keystone/init.c
new file mode 100644
index 0000000000..044015aed6
--- /dev/null
+++ b/arch/arm/cpu/armv7/keystone/init.c
@@ -0,0 +1,56 @@
+/*
+ * Keystone2: Architecture initialization
+ *
+ * (C) Copyright 2012-2014
+ * Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/hardware.h>
+
+void chip_configuration_unlock(void)
+{
+ __raw_writel(KEYSTONE_KICK0_MAGIC, KEYSTONE_KICK0);
+ __raw_writel(KEYSTONE_KICK1_MAGIC, KEYSTONE_KICK1);
+}
+
+int arch_cpu_init(void)
+{
+ chip_configuration_unlock();
+ icache_enable();
+
+#ifdef CONFIG_SOC_K2HK
+ share_all_segments(8);
+ share_all_segments(9);
+ share_all_segments(10); /* QM PDSP */
+ share_all_segments(11); /* PCIE */
+#endif
+
+ return 0;
+}
+
+void reset_cpu(ulong addr)
+{
+ volatile u32 *rstctrl = (volatile u32 *)(KS2_RSTCTRL);
+ u32 tmp;
+
+ tmp = *rstctrl & KS2_RSTCTRL_MASK;
+ *rstctrl = tmp | KS2_RSTCTRL_KEY;
+
+ *rstctrl &= KS2_RSTCTRL_SWRST;
+
+ for (;;)
+ ;
+}
+
+void enable_caches(void)
+{
+#ifndef CONFIG_SYS_DCACHE_OFF
+ /* Enable D-cache. I-cache is already enabled in start.S */
+ dcache_enable();
+#endif
+}