ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/uboot/arch/arm/include/asm/macro.h b/marvell/uboot/arch/arm/include/asm/macro.h
new file mode 100644
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+++ b/marvell/uboot/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__ */