[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/arm/mach-omap2/omap-headsmp.S b/src/kernel/linux/v4.14/arch/arm/mach-omap2/omap-headsmp.S
new file mode 100644
index 0000000..4c6f14c
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/arm/mach-omap2/omap-headsmp.S
@@ -0,0 +1,134 @@
+/*
+ * Secondary CPU startup routine source file.
+ *
+ * Copyright (C) 2009-2014 Texas Instruments, Inc.
+ *
+ * Author:
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * Interface functions needed for the SMP. This file is based on arm
+ * realview smp platform.
+ * Copyright (c) 2003 ARM Limited.
+ *
+ * This program is free software,you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <asm/assembler.h>
+
+#include "omap44xx.h"
+
+/* Physical address needed since MMU not enabled yet on secondary core */
+#define AUX_CORE_BOOT0_PA 0x48281800
+#define API_HYP_ENTRY 0x102
+
+ENTRY(omap_secondary_startup)
+#ifdef CONFIG_SMP
+ b secondary_startup
+#else
+/* Should never get here */
+again: wfi
+ b again
+#endif
+#ENDPROC(omap_secondary_startup)
+
+/*
+ * OMAP5 specific entry point for secondary CPU to jump from ROM
+ * code. This routine also provides a holding flag into which
+ * secondary core is held until we're ready for it to initialise.
+ * The primary core will update this flag using a hardware
+ * register AuxCoreBoot0.
+ */
+ENTRY(omap5_secondary_startup)
+wait: ldr r2, =AUX_CORE_BOOT0_PA @ read from AuxCoreBoot0
+ ldr r0, [r2]
+ mov r0, r0, lsr #5
+ mrc p15, 0, r4, c0, c0, 5
+ and r4, r4, #0x0f
+ cmp r0, r4
+ bne wait
+ b omap_secondary_startup
+ENDPROC(omap5_secondary_startup)
+/*
+ * Same as omap5_secondary_startup except we call into the ROM to
+ * enable HYP mode first. This is called instead of
+ * omap5_secondary_startup if the primary CPU was put into HYP mode by
+ * the boot loader.
+ */
+ENTRY(omap5_secondary_hyp_startup)
+wait_2: ldr r2, =AUX_CORE_BOOT0_PA @ read from AuxCoreBoot0
+ ldr r0, [r2]
+ mov r0, r0, lsr #5
+ mrc p15, 0, r4, c0, c0, 5
+ and r4, r4, #0x0f
+ cmp r0, r4
+ bne wait_2
+ ldr r12, =API_HYP_ENTRY
+ badr r0, hyp_boot
+ smc #0
+hyp_boot:
+ b omap_secondary_startup
+ENDPROC(omap5_secondary_hyp_startup)
+/*
+ * OMAP4 specific entry point for secondary CPU to jump from ROM
+ * code. This routine also provides a holding flag into which
+ * secondary core is held until we're ready for it to initialise.
+ * The primary core will update this flag using a hardware
+ * register AuxCoreBoot0.
+ */
+ENTRY(omap4_secondary_startup)
+hold: ldr r12,=0x103
+ dsb
+ smc #0 @ read from AuxCoreBoot0
+ mov r0, r0, lsr #9
+ mrc p15, 0, r4, c0, c0, 5
+ and r4, r4, #0x0f
+ cmp r0, r4
+ bne hold
+
+ /*
+ * we've been released from the wait loop,secondary_stack
+ * should now contain the SVC stack for this core
+ */
+ b omap_secondary_startup
+ENDPROC(omap4_secondary_startup)
+
+ENTRY(omap4460_secondary_startup)
+hold_2: ldr r12,=0x103
+ dsb
+ smc #0 @ read from AuxCoreBoot0
+ mov r0, r0, lsr #9
+ mrc p15, 0, r4, c0, c0, 5
+ and r4, r4, #0x0f
+ cmp r0, r4
+ bne hold_2
+
+ /*
+ * GIC distributor control register has changed between
+ * CortexA9 r1pX and r2pX. The Control Register secure
+ * banked version is now composed of 2 bits:
+ * bit 0 == Secure Enable
+ * bit 1 == Non-Secure Enable
+ * The Non-Secure banked register has not changed
+ * Because the ROM Code is based on the r1pX GIC, the CPU1
+ * GIC restoration will cause a problem to CPU0 Non-Secure SW.
+ * The workaround must be:
+ * 1) Before doing the CPU1 wakeup, CPU0 must disable
+ * the GIC distributor
+ * 2) CPU1 must re-enable the GIC distributor on
+ * it's wakeup path.
+ */
+ ldr r1, =OMAP44XX_GIC_DIST_BASE
+ ldr r0, [r1]
+ orr r0, #1
+ str r0, [r1]
+
+ /*
+ * we've been released from the wait loop,secondary_stack
+ * should now contain the SVC stack for this core
+ */
+ b omap_secondary_startup
+ENDPROC(omap4460_secondary_startup)