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Index: sys/boot/Makefile.arm64
===================================================================
--- sys/boot/Makefile.arm64
+++ sys/boot/Makefile.arm64
@@ -4,4 +4,4 @@
SUBDIR+= fdt
.endif
-SUBDIR+= efi
+SUBDIR+= efi uboot
Index: sys/boot/arm64/Makefile
===================================================================
--- sys/boot/arm64/Makefile
+++ sys/boot/arm64/Makefile
@@ -1,3 +1,5 @@
# $FreeBSD$
+SUBDIR= uboot
+
.include <bsd.subdir.mk>
Index: sys/boot/arm64/Makefile.inc
===================================================================
--- sys/boot/arm64/Makefile.inc
+++ sys/boot/arm64/Makefile.inc
@@ -0,0 +1,3 @@
+# $FreeBSD$
+
+.include "../Makefile.inc"
Index: sys/boot/arm64/uboot/Makefile
===================================================================
--- sys/boot/arm64/uboot/Makefile
+++ sys/boot/arm64/uboot/Makefile
@@ -0,0 +1,159 @@
+# $FreeBSD$
+
+.include <src.opts.mk>
+
+FILES= ubldr ubldr.bin
+
+NEWVERSWHAT= "U-Boot loader" ${MACHINE_ARCH}
+BINDIR?= /boot
+INSTALLFLAGS= -b
+WARNS?= 1
+# Address at which ubldr will be loaded.
+# This varies for different boards and SOCs.
+UBLDR_LOADADDR?= 0x1000000
+
+# Architecture-specific loader code
+SRCS= start.S conf.c self_reloc.c vers.c
+
+.if !defined(LOADER_NO_DISK_SUPPORT)
+LOADER_DISK_SUPPORT?= yes
+.else
+LOADER_DISK_SUPPORT= no
+.endif
+LOADER_UFS_SUPPORT?= yes
+LOADER_CD9660_SUPPORT?= no
+LOADER_EXT2FS_SUPPORT?= no
+.if ${MK_NAND} != "no"
+LOADER_NANDFS_SUPPORT?= yes
+.else
+LOADER_NANDFS_SUPPORT?= no
+.endif
+LOADER_NET_SUPPORT?= yes
+LOADER_NFS_SUPPORT?= yes
+LOADER_TFTP_SUPPORT?= no
+LOADER_GZIP_SUPPORT?= no
+LOADER_BZIP2_SUPPORT?= no
+.if ${MK_FDT} != "no"
+LOADER_FDT_SUPPORT= yes
+.else
+LOADER_FDT_SUPPORT= no
+.endif
+
+.if ${LOADER_DISK_SUPPORT} == "yes"
+CFLAGS+= -DLOADER_DISK_SUPPORT
+.endif
+.if ${LOADER_UFS_SUPPORT} == "yes"
+CFLAGS+= -DLOADER_UFS_SUPPORT
+.endif
+.if ${LOADER_CD9660_SUPPORT} == "yes"
+CFLAGS+= -DLOADER_CD9660_SUPPORT
+.endif
+.if ${LOADER_EXT2FS_SUPPORT} == "yes"
+CFLAGS+= -DLOADER_EXT2FS_SUPPORT
+.endif
+.if ${LOADER_NANDFS_SUPPORT} == "yes"
+CFLAGS+= -DLOADER_NANDFS_SUPPORT
+.endif
+.if ${LOADER_GZIP_SUPPORT} == "yes"
+CFLAGS+= -DLOADER_GZIP_SUPPORT
+.endif
+.if ${LOADER_BZIP2_SUPPORT} == "yes"
+CFLAGS+= -DLOADER_BZIP2_SUPPORT
+.endif
+.if ${LOADER_NET_SUPPORT} == "yes"
+CFLAGS+= -DLOADER_NET_SUPPORT
+.endif
+.if ${LOADER_NFS_SUPPORT} == "yes"
+CFLAGS+= -DLOADER_NFS_SUPPORT
+.endif
+.if ${LOADER_TFTP_SUPPORT} == "yes"
+CFLAGS+= -DLOADER_TFTP_SUPPORT
+.endif
+.if ${LOADER_FDT_SUPPORT} == "yes"
+CFLAGS+= -I${.CURDIR}/../../fdt
+CFLAGS+= -I${.OBJDIR}/../../fdt
+CFLAGS+= -DLOADER_FDT_SUPPORT
+LIBUBOOT_FDT= ${.OBJDIR}/../../uboot/fdt/libuboot_fdt.a
+LIBFDT= ${.OBJDIR}/../../fdt/libfdt.a
+.endif
+
+CFLAGS+= -DNETIF_OPEN_CLOSE_ONCE
+
+.if ${MK_FORTH} != "no"
+# Enable BootForth
+BOOT_FORTH= yes
+CFLAGS+= -DBOOT_FORTH -I${.CURDIR}/../../ficl -I${.CURDIR}/../../ficl/aarch64
+LIBFICL= ${.OBJDIR}/../../ficl/libficl.a
+.endif
+
+# Always add MI sources
+.PATH: ${.CURDIR}/../../common
+.include "${.CURDIR}/../../common/Makefile.inc"
+CFLAGS+= -I${.CURDIR}/../../common
+CFLAGS+= -I.
+
+CLEANFILES+= vers.c loader.help
+
+CFLAGS+= -ffreestanding -msoft-float
+
+LDFLAGS= -nostdlib -static -T ${.CURDIR}/ldscript.${MACHINE_CPUARCH}
+
+# Pull in common loader code
+.PATH: ${.CURDIR}/../../uboot/common
+.include "${.CURDIR}/../../uboot/common/Makefile.inc"
+CFLAGS+= -I${.CURDIR}/../../uboot/common
+
+# U-Boot standalone support library
+LIBUBOOT= ${.OBJDIR}/../../uboot/lib/libuboot.a
+CFLAGS+= -I${.CURDIR}/../../uboot/lib
+CFLAGS+= -I${.OBJDIR}/../../uboot/lib
+
+# where to get libstand from
+CFLAGS+= -I${.CURDIR}/../../../../lib/libstand/
+
+# clang doesn't understand %D as a specifier to printf
+NO_WERROR.clang=
+
+DPADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBUBOOT_FDT} ${LIBSTAND}
+LDADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBUBOOT_FDT} -lstand
+
+OBJS+= ${SRCS:N*.h:R:S/$/.o/g}
+
+vers.c: ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
+ sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
+
+loader.help: help.common help.uboot ${.CURDIR}/../../fdt/help.fdt
+ cat ${.ALLSRC} | \
+ awk -f ${.CURDIR}/../../common/merge_help.awk > ${.TARGET}
+
+ldscript.abs:
+ echo "UBLDR_LOADADDR = ${UBLDR_LOADADDR};" >${.TARGET}
+
+ldscript.pie:
+ echo "UBLDR_LOADADDR = 0;" >${.TARGET}
+
+ubldr: ${OBJS} ldscript.abs ${.CURDIR}/ldscript.${MACHINE_CPUARCH} ${DPADD}
+ ${CC} ${CFLAGS} -T ldscript.abs ${LDFLAGS} \
+ -o ${.TARGET} ${OBJS} ${LDADD}
+
+ubldr.pie: ${OBJS} ldscript.pie ${.CURDIR}/ldscript.${MACHINE_CPUARCH} ${DPADD}
+ ${CC} ${CFLAGS} -T ldscript.pie ${LDFLAGS} -pie -Wl,-Bsymbolic \
+ -o ${.TARGET} ${OBJS} ${LDADD}
+
+ubldr.bin: ubldr.pie
+ ${OBJCOPY} -S -O binary ubldr.pie ${.TARGET}
+
+CLEANFILES+= ldscript.abs ldscript.pie ubldr ubldr.pie ubldr.bin
+
+.if !defined(LOADER_ONLY)
+.PATH: ${.CURDIR}/../../forth
+.include "${.CURDIR}/../../forth/Makefile.inc"
+
+# Install loader.rc.
+FILES+= loader.rc
+# Put sample menu.rc on disk but don't enable it by default.
+FILES+= menu.rc
+FILESNAME_menu.rc= menu.rc.sample
+.endif
+
+.include <bsd.prog.mk>
Index: sys/boot/arm64/uboot/conf.c
===================================================================
--- sys/boot/arm64/uboot/conf.c
+++ sys/boot/arm64/uboot/conf.c
@@ -0,0 +1,94 @@
+/*-
+ * Copyright (c) 2008 Semihalf, Rafal Jaworowski
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stand.h>
+#include "bootstrap.h"
+#include "libuboot.h"
+
+#if defined(LOADER_NET_SUPPORT)
+#include "dev_net.h"
+#endif
+
+struct devsw *devsw[] = {
+#if defined(LOADER_DISK_SUPPORT) || defined(LOADER_CD9660_SUPPORT)
+ &uboot_storage,
+#endif
+#if defined(LOADER_NET_SUPPORT)
+ &netdev,
+#endif
+ NULL
+};
+
+struct fs_ops *file_system[] = {
+#if defined(LOADER_UFS_SUPPORT)
+ &ufs_fsops,
+#endif
+#if defined(LOADER_CD9660_SUPPORT)
+ &cd9660_fsops,
+#endif
+#if defined(LOADER_EXT2FS_SUPPORT)
+ &ext2fs_fsops,
+#endif
+#if defined(LOADER_NANDFS_SUPPORT)
+ &nandfs_fsops,
+#endif
+#if defined(LOADER_NFS_SUPPORT)
+ &nfs_fsops,
+#endif
+#if defined(LOADER_TFTP_SUPPORT)
+ &tftp_fsops,
+#endif
+#if defined(LOADER_GZIP_SUPPORT)
+ &gzipfs_fsops,
+#endif
+#if defined(LOADER_BZIP2_SUPPORT)
+ &bzipfs_fsops,
+#endif
+ NULL
+};
+
+struct netif_driver *netif_drivers[] = {
+#if defined(LOADER_NET_SUPPORT)
+ &uboot_net,
+#endif
+ NULL,
+};
+
+struct file_format *file_formats[] = {
+ &uboot_elf,
+ NULL
+};
+
+extern struct console uboot_console;
+
+struct console *consoles[] = {
+ &uboot_console,
+ NULL
+};
Index: sys/boot/arm64/uboot/help.uboot
===================================================================
--- sys/boot/arm64/uboot/help.uboot
+++ sys/boot/arm64/uboot/help.uboot
@@ -0,0 +1,27 @@
+$FreeBSD$
+
+###############################################################################
+# Tubenv DShow or import U-Boot environment variables
+
+ ubenv <import | show> [varname ...]
+
+ Display U-Boot environment variables, or import them into the
+ loader environment (which makes them available in the kernel).
+
+###############################################################################
+# Tubenv Simport DImport U-Boot env vars
+
+ ubenv import [varname ...]
+
+ If no variable names are specified, all U-Boot environment
+ variables are imported. Each variable is prefixed with "uboot."
+ to avoid any possible conflicts with loader or kernel variables.
+
+###############################################################################
+# Tubenv Sshow DShow U-Boot env vars
+
+ ubenv show [varname ...]
+
+ If no variable names are specified, all U-Boot environment
+ variables are shown.
+
Index: sys/boot/arm64/uboot/ldscript.aarch64
===================================================================
--- sys/boot/arm64/uboot/ldscript.aarch64
+++ sys/boot/arm64/uboot/ldscript.aarch64
@@ -0,0 +1,133 @@
+/* $FreeBSD$ */
+
+OUTPUT_ARCH(aarch64)
+ENTRY(_start)
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = UBLDR_LOADADDR + SIZEOF_HEADERS;
+ .text :
+ {
+ *(.text)
+ /* .gnu.warning sections are handled specially by elf32.em. */
+ *(.gnu.warning)
+ *(.gnu.linkonce.t*)
+ } =0
+ _etext = .;
+ PROVIDE (etext = .);
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .gnu.version : { *(.gnu.version) }
+ .gnu.version_d : { *(.gnu.version_d) }
+ .gnu.version_r : { *(.gnu.version_r) }
+ .rela.text :
+ { *(.rela.text) *(.rela.gnu.linkonce.t*) }
+ .rela.data :
+ { *(.rela.data) *(.rela.gnu.linkonce.d*) }
+ .rela.rodata :
+ { *(.rela.rodata) *(.rela.gnu.linkonce.r*) }
+ .rela.got : { *(.rela.got) }
+ .rela.got1 : { *(.rela.got1) }
+ .rela.got2 : { *(.rela.got2) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rela.init : { *(.rela.init) }
+ .rela.fini : { *(.rela.fini) }
+ .rela.bss : { *(.rela.bss) }
+ .rela.plt : { *(.rela.plt) }
+ .rela.sdata : { *(.rela.sdata) }
+ .rela.sbss : { *(.rela.sbss) }
+ .rela.sdata2 : { *(.rela.sdata2) }
+ .rela.sbss2 : { *(.rela.sbss2) }
+ .init : { *(.init) } =0
+ .fini : { *(.fini) } =0
+ .rodata : { *(.rodata) *(.gnu.linkonce.r*) }
+ .rodata1 : { *(.rodata1) }
+ .sdata2 : { *(.sdata2) }
+ .sbss2 : { *(.sbss2) }
+ /* Adjust the address for the data segment to the next page up. */
+ . = ((. + 0x1000) & ~(0x1000 - 1));
+ .data :
+ {
+ *(.data)
+ *(.gnu.linkonce.d*)
+ CONSTRUCTORS
+ }
+ .data1 : { *(.data1) }
+ .got1 : { *(.got1) }
+ .dynamic : { *(.dynamic) }
+ /* Put .ctors and .dtors next to the .got2 section, so that the pointers
+ get relocated with -mrelocatable. Also put in the .fixup pointers.
+ The current compiler no longer needs this, but keep it around for 2.7.2 */
+ PROVIDE (_GOT2_START_ = .);
+ .got2 : { *(.got2) }
+ PROVIDE (__CTOR_LIST__ = .);
+ .ctors : { *(.ctors) }
+ PROVIDE (__CTOR_END__ = .);
+ PROVIDE (__DTOR_LIST__ = .);
+ .dtors : { *(.dtors) }
+ PROVIDE (__DTOR_END__ = .);
+ PROVIDE (_FIXUP_START_ = .);
+ .fixup : { *(.fixup) }
+ PROVIDE (_FIXUP_END_ = .);
+ PROVIDE (_GOT2_END_ = .);
+ PROVIDE (_GOT_START_ = .);
+ .got : { *(.got) }
+ .got.plt : { *(.got.plt) }
+ PROVIDE (_GOT_END_ = .);
+ /* We want the small data sections together, so single-instruction offsets
+ can access them all, and initialized data all before uninitialized, so
+ we can shorten the on-disk segment size. */
+ .sdata : { *(.sdata) }
+ _edata = .;
+ PROVIDE (edata = .);
+ .sbss :
+ {
+ PROVIDE (__sbss_start = .);
+ *(.sbss)
+ *(.scommon)
+ *(.dynsbss)
+ PROVIDE (__sbss_end = .);
+ }
+ .plt : { *(.plt) }
+ .bss :
+ {
+ PROVIDE (__bss_start = .);
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ }
+ _end = . ;
+ PROVIDE (end = .);
+ /* Stabs debugging sections. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ /* DWARF debug sections.
+ Symbols in the DWARF debugging sections are relative to the beginning
+ of the section so we begin them at 0. */
+ /* DWARF 1 */
+ .debug 0 : { *(.debug) }
+ .line 0 : { *(.line) }
+ /* GNU DWARF 1 extensions */
+ .debug_srcinfo 0 : { *(.debug_srcinfo) }
+ .debug_sfnames 0 : { *(.debug_sfnames) }
+ /* DWARF 1.1 and DWARF 2 */
+ .debug_aranges 0 : { *(.debug_aranges) }
+ .debug_pubnames 0 : { *(.debug_pubnames) }
+ /* DWARF 2 */
+ .debug_info 0 : { *(.debug_info) }
+ .debug_abbrev 0 : { *(.debug_abbrev) }
+ .debug_line 0 : { *(.debug_line) }
+ .debug_frame 0 : { *(.debug_frame) }
+ .debug_str 0 : { *(.debug_str) }
+ .debug_loc 0 : { *(.debug_loc) }
+ .debug_macinfo 0 : { *(.debug_macinfo) }
+ /* SGI/MIPS DWARF 2 extensions */
+ .debug_weaknames 0 : { *(.debug_weaknames) }
+ .debug_funcnames 0 : { *(.debug_funcnames) }
+ .debug_typenames 0 : { *(.debug_typenames) }
+ .debug_varnames 0 : { *(.debug_varnames) }
+ /* These must appear regardless of . */
+}
Index: sys/boot/arm64/uboot/loader.conf
===================================================================
--- sys/boot/arm64/uboot/loader.conf
+++ sys/boot/arm64/uboot/loader.conf
@@ -0,0 +1,13 @@
+# This is defaults/loader.conf for ARM 64, containing defaults for loader(8).
+# Do not modify the contents of this file, instead put your customizations
+# into /boot/loader.conf or /boot/loader.conf.local
+# $FreeBSD$
+
+autoboot_delay=10
+bootfile="kernel" # Kernel name (possibly absolute path)
+kernel="kernel" # /boot sub-directory containing kernel and modules
+loader_conf_files="/boot/loader.conf /boot/loader.conf.local"
+module_path="/boot/kernel;/boot/modules;/boot/dtb"
+nextboot_conf="/boot/nextboot.conf"
+nextboot_enable="NO"
+verbose_loading="NO"
Index: sys/boot/arm64/uboot/start.S
===================================================================
--- sys/boot/arm64/uboot/start.S
+++ sys/boot/arm64/uboot/start.S
@@ -0,0 +1,122 @@
+/*-
+ * Copyright (c) 2008 Semihalf, Rafal Czubak
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <machine/asm.h>
+#include <machine/armreg.h>
+
+ .text
+ .extern _C_LABEL(self_reloc), _C_LABEL(main)
+ .weak _DYNAMIC
+
+/*
+ * Entry point to the loader that U-Boot passes control to.
+ */
+ .globl _start
+_start:
+
+ /*
+ * Do self-relocation when the weak external symbol _DYNAMIC is non-NULL.
+ * When linked as a dynamic relocatable file, the linker automatically
+ * defines _DYNAMIC with a value that is the offset of the dynamic
+ * relocation info section.
+ * Note that we're still on u-boot's stack here, but the self_reloc
+ * code uses only a couple dozen bytes of stack space.
+ */
+ ldr x15, =.here_off /* .here_off is a symbol whose value */
+ ldr x0, [x15] /* is its own offset in the text seg. */
+ sub x0, x15, x0 /* Get its pc-relative address and */
+ ldr x1, .dynamic_off /* subtract its value and we get */
+ cmp x1, #0 /* x0 = physaddr we were loaded at. */
+ b.eq 2f
+ add x1, x1, x0 /* x1 = dynamic section physaddr. */
+ bl _C_LABEL(self_reloc) /* Do reloc if _DYNAMIC is non-NULL. */
+2:
+ /* Hint where to look for the API signature */
+ ldr x15, =uboot_address
+ mov x0, sp
+ str x0, [x15]
+
+ /* Save U-Boot's x18 */
+ ldr x15, =saved_regs
+ str x18, [x15, #0]
+
+ /*
+ * Start loader. This is basically a tail-recursion call; if main()
+ * returns, it returns to u-boot (which reports the value returned x0).
+ */
+ b main
+
+ /*
+ * Data for self-relocation, in the text segment for pc-rel access.
+ */
+ .align 3
+.here_off:
+ .quad .
+.dynamic_off:
+ .quad _DYNAMIC
+
+/*
+ * syscall()
+ */
+ENTRY(syscall)
+ /* Save caller's lr, x18 */
+ ldr x15, =saved_regs
+ str x18, [x15, #8]
+ str lr, [x15, #16]
+
+ /* Restore U-Boot's x18 */
+ ldr x18, saved_regs
+
+ /* Call into U-Boot */
+ ldr lr, =return_from_syscall
+ ldr x15, syscall_ptr
+ br x15
+return_from_syscall:
+ /* Restore loader's x18 and lr */
+ ldr lr, saved_regs + 16
+ ldr x18, saved_regs + 8
+ /* Return to caller */
+ ret
+
+/*
+ * Data section
+ */
+ .data
+ .align 3
+ .globl syscall_ptr
+syscall_ptr:
+ .quad 0
+
+ .globl uboot_address
+uboot_address:
+ .quad 0
+
+saved_regs:
+ .quad 0 /* U-Boot's x18 */
+ .quad 0 /* Loader's x18 */
+ .quad 0 /* Loader's lr */
Index: sys/boot/arm64/uboot/version
===================================================================
--- sys/boot/arm64/uboot/version
+++ sys/boot/arm64/uboot/version
@@ -0,0 +1,6 @@
+$FreeBSD$
+
+NOTE ANY CHANGES YOU MAKE TO THE BOOTBLOCKS HERE. The format of this
+file is important. Make sure the current version number is on line 6.
+
+1.0: Initial U-Boot/arm64 version derived from U-boot/arm.
Index: sys/boot/common/load_elf.c
===================================================================
--- sys/boot/common/load_elf.c
+++ sys/boot/common/load_elf.c
@@ -50,6 +50,10 @@
#define ELF_TARG_MACH EM_X86_64
#endif
+#if defined(__aarch64__)
+#define KERN_ALIGN (2 * 1024 * 1024)
+#endif
+
typedef struct elf_file {
Elf_Phdr *ph;
Elf_Ehdr *ehdr;
@@ -198,7 +202,7 @@
* leave dest set to the value calculated by archsw.arch_loadaddr() and
* passed in to this function.
*/
-#ifndef __arm__
+#if !defined(__arm__) && !defined(__aarch64__)
if (ehdr->e_type == ET_EXEC)
dest = (ehdr->e_entry & ~PAGE_MASK);
#endif
@@ -375,6 +379,23 @@
#ifdef ELF_VERBOSE
printf("ehdr->e_entry 0x%08x, va<->pa off %llx\n", ehdr->e_entry, off);
#endif
+#elif defined(__aarch64__)
+ /*
+ * The elf headers in arm kernels specify virtual addresses in all
+ * header fields, even the ones that should be physical addresses.
+ * We assume the entry point is in the first 2MB, and masking the lower
+ * bits will leave us with the virtual address the kernel was linked
+ * at. We subtract that from the load offset, making 'off' into the
+ * value which, when added to a virtual address in an elf header,
+ * translates it to a physical address. We do the va->pa conversion on
+ * the entry point address in the header now, so that later we can
+ * launch the kernel by just jumping to that address.
+ */
+ off -= ehdr->e_entry & ~(KERN_ALIGN - 1);
+ ehdr->e_entry += off;
+#ifdef ELF_VERBOSE
+ printf("ehdr->e_entry %p, va<->pa off 0x%llx\n", ehdr->e_entry, off);
+#endif
#else
off = 0; /* other archs use direct mapped kernels */
#endif
Index: sys/boot/efi/loader/bootinfo.c
===================================================================
--- sys/boot/efi/loader/bootinfo.c
+++ sys/boot/efi/loader/bootinfo.c
@@ -221,7 +221,7 @@
if (fp->f_args)
MOD_ARGS(addr, fp->f_args, c);
v = fp->f_addr;
-#if defined(__arm__)
+#if defined(__arm__) || defined(__aarch64__)
v -= __elfN(relocation_offset);
#endif
MOD_ADDR(addr, v, c);
@@ -351,7 +351,7 @@
vm_offset_t dtbp;
int dtb_size;
#endif
-#if defined(__arm__)
+#if defined(__arm__) || defined(__aarch64__)
vm_offset_t vaddr;
size_t i;
/*
@@ -440,7 +440,7 @@
md = file_findmetadata(kfp, MODINFOMD_KERNEND);
bcopy(&kernend, md->md_data, sizeof kernend);
-#if defined(__arm__)
+#if defined(__arm__) || defined(__aarch64__)
*modulep -= __elfN(relocation_offset);
/* Do relocation fixup on metadata of each module. */
Index: sys/boot/uboot/lib/copy.c
===================================================================
--- sys/boot/uboot/lib/copy.c
+++ sys/boot/uboot/lib/copy.c
@@ -40,7 +40,7 @@
* MD primitives supporting placement of module data
*/
-#ifdef __arm__
+#if defined(__arm__) || defined(__aarch64__)
#define KERN_ALIGN (2 * 1024 * 1024)
#else
#define KERN_ALIGN PAGE_SIZE

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