[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/arm/mach-omap1/sram.S b/src/kernel/linux/v4.14/arch/arm/mach-omap1/sram.S
new file mode 100644
index 0000000..00e9d9e
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/arm/mach-omap1/sram.S
@@ -0,0 +1,61 @@
+/*
+ * linux/arch/arm/plat-omap/sram-fn.S
+ *
+ * Functions that need to be run in internal SRAM
+ *
+ * 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 <asm/assembler.h>
+
+#include <mach/hardware.h>
+
+#include "iomap.h"
+
+ .text
+
+/*
+ * Reprograms ULPD and CKCTL.
+ */
+ .align 3
+ENTRY(omap1_sram_reprogram_clock)
+ stmfd sp!, {r0 - r12, lr} @ save registers on stack
+
+ mov r2, #OMAP1_IO_ADDRESS(DPLL_CTL) & 0xff000000
+ orr r2, r2, #OMAP1_IO_ADDRESS(DPLL_CTL) & 0x00ff0000
+ orr r2, r2, #OMAP1_IO_ADDRESS(DPLL_CTL) & 0x0000ff00
+
+ mov r3, #OMAP1_IO_ADDRESS(ARM_CKCTL) & 0xff000000
+ orr r3, r3, #OMAP1_IO_ADDRESS(ARM_CKCTL) & 0x00ff0000
+ orr r3, r3, #OMAP1_IO_ADDRESS(ARM_CKCTL) & 0x0000ff00
+
+ tst r0, #1 << 4 @ want lock mode?
+ beq newck @ nope
+ bic r0, r0, #1 << 4 @ else clear lock bit
+ strh r0, [r2] @ set dpll into bypass mode
+ orr r0, r0, #1 << 4 @ set lock bit again
+
+newck:
+ strh r1, [r3] @ write new ckctl value
+ strh r0, [r2] @ write new dpll value
+
+ mov r4, #0x0700 @ let the clocks settle
+ orr r4, r4, #0x00ff
+delay: sub r4, r4, #1
+ cmp r4, #0
+ bne delay
+
+lock: ldrh r4, [r2], #0 @ read back dpll value
+ tst r0, #1 << 4 @ want lock mode?
+ beq out @ nope
+ tst r4, #1 << 0 @ dpll rate locked?
+ beq lock @ try again
+
+out:
+ ldmfd sp!, {r0 - r12, pc} @ restore regs and return
+ENTRY(omap1_sram_reprogram_clock_sz)
+ .word . - omap1_sram_reprogram_clock