k2hk: add support for k2hk SOC and EVM

k2hk EVM is based on Texas Instruments Keystone2 Hawking/Kepler
SoC. Keystone2 SoC has ARM v7 Cortex-A15 MPCore processor. Please
refer the ti/k2hk_evm/README for details on the board, build and other
information.

This patch add support for keystone architecture and k2hk evm.

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
Signed-off-by: Sandeep Nair <sandeep_n@ti.com>

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
+}