Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

4 files changed, 161 insertions, 0 deletions

diff --git a/roms/u-boot/arch/x86/cpu/x86_64/Makefile b/roms/u-boot/arch/x86/cpu/x86_64/Makefile
new file mode 100644
index 000000000..400f0ffe3
--- /dev/null
+++ b/roms/u-boot/arch/x86/cpu/x86_64/Makefile
@@ -0,0 +1,6 @@
+#
+# (C) Copyright 2016 Google, Inc
+# Written by Simon Glass <sjg@chromium.org>
+#
+
+obj-y += cpu.o interrupts.o setjmp.o
diff --git a/roms/u-boot/arch/x86/cpu/x86_64/cpu.c b/roms/u-boot/arch/x86/cpu/x86_64/cpu.c
new file mode 100644
index 000000000..90a766c3c
--- /dev/null
+++ b/roms/u-boot/arch/x86/cpu/x86_64/cpu.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2016 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <cpu_func.h>
+#include <debug_uart.h>
+#include <init.h>
+
+/*
+ * Global declaration of gd.
+ *
+ * As we write to it before relocation we have to make sure it is not put into
+ * a .bss section which may overlap a .rela section. Initialization forces it
+ * into a .data section which cannot overlap any .rela section.
+ */
+struct global_data *global_data_ptr = (struct global_data *)~0;
+
+void arch_setup_gd(gd_t *new_gd)
+{
+	global_data_ptr = new_gd;
+}
+
+int cpu_has_64bit(void)
+{
+	return true;
+}
+
+void enable_caches(void)
+{
+	/* Not implemented */
+}
+
+void disable_caches(void)
+{
+	/* Not implemented */
+}
+
+int dcache_status(void)
+{
+	return true;
+}
+
+int x86_mp_init(void)
+{
+	/* Not implemented */
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	return 0;
+}
+
+#ifndef CONFIG_SYS_COREBOOT
+int checkcpu(void)
+{
+	return 0;
+}
+
+int print_cpuinfo(void)
+{
+	return 0;
+}
+#endif
+
+int x86_cpu_reinit_f(void)
+{
+	return 0;
+}
+
+int cpu_phys_address_size(void)
+{
+	return CONFIG_CPU_ADDR_BITS;
+}
diff --git a/roms/u-boot/arch/x86/cpu/x86_64/interrupts.c b/roms/u-boot/arch/x86/cpu/x86_64/interrupts.c
new file mode 100644
index 000000000..634f7660c
--- /dev/null
+++ b/roms/u-boot/arch/x86/cpu/x86_64/interrupts.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2016 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <irq_func.h>
+#include <asm/processor-flags.h>
+
+void enable_interrupts(void)
+{
+	asm("sti\n");
+}
+
+int disable_interrupts(void)
+{
+	long flags;
+
+	asm volatile ("pushfq ; popq %0 ; cli\n" : "=g" (flags) : );
+
+	return flags & X86_EFLAGS_IF;
+}
+
+int interrupt_init(void)
+{
+	/* Nothing to do - this was already done in SPL */
+	return 0;
+}
diff --git a/roms/u-boot/arch/x86/cpu/x86_64/setjmp.S b/roms/u-boot/arch/x86/cpu/x86_64/setjmp.S
new file mode 100644
index 000000000..97b812854
--- /dev/null
+++ b/roms/u-boot/arch/x86/cpu/x86_64/setjmp.S
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * See arch/x86/include/asm/setjmp.h for jmp_buf format
+ */
+
+#include <linux/linkage.h>
+
+.text
+.align 8
+
+ENTRY(setjmp)
+
+	pop	%rcx
+	movq	%rcx, (%rdi)	/* Return address */
+	movq	%rsp, 8(%rdi)
+	movq	%rbp, 16(%rdi)
+	movq	%rbx, 24(%rdi)
+	movq	%r12, 32(%rdi)
+	movq	%r13, 40(%rdi)
+	movq	%r14, 48(%rdi)
+	movq	%r15, 56(%rdi)
+	xorq	%rax, %rax	/* Direct invocation returns 0 */
+	jmpq	*%rcx
+
+ENDPROC(setjmp)
+
+.align 8
+
+ENTRY(longjmp)
+
+	movq	(%rdi), %rcx	/* Return address */
+	movq	8(%rdi), %rsp
+	movq	16(%rdi), %rbp
+	movq	24(%rdi), %rbx
+	movq	32(%rdi), %r12
+	movq	40(%rdi), %r13
+	movq	48(%rdi), %r14
+	movq	56(%rdi), %r15
+
+	movq	%rsi, %rax	/* Value to be returned by setjmp() */
+	testq	%rax, %rax	/* cannot be 0 in this case */
+	jnz	1f
+	incq	%rax		/* Return 1 instead */
+1:
+	jmpq	*%rcx
+
+ENDPROC(longjmp)