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diff --git a/roms/u-boot/arch/arm/include/asm/macro.h b/roms/u-boot/arch/arm/include/asm/macro.h
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+++ b/roms/u-boot/arch/arm/include/asm/macro.h
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+/*
+ * include/asm-arm/macro.h
+ *
+ * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARM_MACRO_H__
+#define __ASM_ARM_MACRO_H__
+#ifdef __ASSEMBLY__
+
+/*
+ * These macros provide a convenient way to write 8, 16 and 32 bit data
+ * to any address.
+ * Registers r4 and r5 are used, any data in these registers are
+ * overwritten by the macros.
+ * The macros are valid for any ARM architecture, they do not implement
+ * any memory barriers so caution is recommended when using these when the
+ * caches are enabled or on a multi-core system.
+ */
+
+.macro	write32, addr, data
+	ldr	r4, =\addr
+	ldr	r5, =\data
+	str	r5, [r4]
+.endm
+
+.macro	write16, addr, data
+	ldr	r4, =\addr
+	ldrh	r5, =\data
+	strh	r5, [r4]
+.endm
+
+.macro	write8, addr, data
+	ldr	r4, =\addr
+	ldrb	r5, =\data
+	strb	r5, [r4]
+.endm
+
+/*
+ * This macro generates a loop that can be used for delays in the code.
+ * Register r4 is used, any data in this register is overwritten by the
+ * macro.
+ * The macro is valid for any ARM architeture. The actual time spent in the
+ * loop will vary from CPU to CPU though.
+ */
+
+.macro	wait_timer, time
+	ldr	r4, =\time
+1:
+	nop
+	subs	r4, r4, #1
+	bcs	1b
+.endm
+
+#ifdef CONFIG_ARM64
+/*
+ * Register aliases.
+ */
+lr	.req	x30
+
+/*
+ * Branch according to exception level
+ */
+.macro	switch_el, xreg, el3_label, el2_label, el1_label
+	mrs	\xreg, CurrentEL
+	cmp	\xreg, 0xc
+	b.eq	\el3_label
+	cmp	\xreg, 0x8
+	b.eq	\el2_label
+	cmp	\xreg, 0x4
+	b.eq	\el1_label
+.endm
+
+/*
+ * Branch if current processor is a slave,
+ * choose processor with all zero affinity value as the master.
+ */
+.macro	branch_if_slave, xreg, slave_label
+	mrs	\xreg, mpidr_el1
+	tst	\xreg, #0xff		/* Test Affinity 0 */
+	b.ne	\slave_label
+	lsr	\xreg, \xreg, #8
+	tst	\xreg, #0xff		/* Test Affinity 1 */
+	b.ne	\slave_label
+	lsr	\xreg, \xreg, #8
+	tst	\xreg, #0xff		/* Test Affinity 2 */
+	b.ne	\slave_label
+	lsr	\xreg, \xreg, #16
+	tst	\xreg, #0xff		/* Test Affinity 3 */
+	b.ne	\slave_label
+.endm
+
+/*
+ * Branch if current processor is a master,
+ * choose processor with all zero affinity value as the master.
+ */
+.macro	branch_if_master, xreg1, xreg2, master_label
+	mrs	\xreg1, mpidr_el1
+	lsr	\xreg2, \xreg1, #32
+	lsl	\xreg1, \xreg1, #40
+	lsr	\xreg1, \xreg1, #40
+	orr	\xreg1, \xreg1, \xreg2
+	cbz	\xreg1, \master_label
+.endm
+
+#endif /* CONFIG_ARM64 */
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_ARM_MACRO_H__ */