diff options
Diffstat (limited to 'stand/arm')
| -rw-r--r-- | stand/arm/Makefile | 5 | ||||
| -rw-r--r-- | stand/arm/Makefile.inc | 3 | ||||
| -rw-r--r-- | stand/arm/loader/loader.conf | 13 | ||||
| -rw-r--r-- | stand/arm/uboot/Makefile | 70 | ||||
| -rw-r--r-- | stand/arm/uboot/conf.c | 97 | ||||
| -rw-r--r-- | stand/arm/uboot/help.uboot | 27 | ||||
| -rw-r--r-- | stand/arm/uboot/ldscript.arm | 134 | ||||
| -rw-r--r-- | stand/arm/uboot/start.S | 145 | ||||
| -rw-r--r-- | stand/arm/uboot/version | 9 |
9 files changed, 503 insertions, 0 deletions
diff --git a/stand/arm/Makefile b/stand/arm/Makefile new file mode 100644 index 0000000..1d12d98 --- /dev/null +++ b/stand/arm/Makefile @@ -0,0 +1,5 @@ +# $FreeBSD$ + +SUBDIR= uboot + +.include <bsd.subdir.mk> diff --git a/stand/arm/Makefile.inc b/stand/arm/Makefile.inc new file mode 100644 index 0000000..265f86d --- /dev/null +++ b/stand/arm/Makefile.inc @@ -0,0 +1,3 @@ +# $FreeBSD$ + +.include "../Makefile.inc" diff --git a/stand/arm/loader/loader.conf b/stand/arm/loader/loader.conf new file mode 100644 index 0000000..dd2a23a --- /dev/null +++ b/stand/arm/loader/loader.conf @@ -0,0 +1,13 @@ +# This is defaults/loader.conf for ARM, 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;/boot/overlays" +nextboot_conf="/boot/nextboot.conf" +nextboot_enable="NO" +verbose_loading="NO" diff --git a/stand/arm/uboot/Makefile b/stand/arm/uboot/Makefile new file mode 100644 index 0000000..5bf7d53 --- /dev/null +++ b/stand/arm/uboot/Makefile @@ -0,0 +1,70 @@ +# $FreeBSD$ + +LOADER_UFS_SUPPORT?= yes +LOADER_CD9660_SUPPORT?= no +LOADER_MSDOS_SUPPORT?= no +LOADER_EXT2FS_SUPPORT?= no +LOADER_NET_SUPPORT?= yes +LOADER_NFS_SUPPORT?= yes +LOADER_TFTP_SUPPORT?= no +LOADER_GZIP_SUPPORT?= no +LOADER_BZIP2_SUPPORT?= no + +.include <bsd.init.mk> + +FILES+= ubldr ubldr.bin + +NEWVERSWHAT= "U-Boot loader" ${MACHINE_ARCH} +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 ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} > 40201 +CWARNFLAGS.self_reloc.c+= -Wno-error=maybe-uninitialized +.endif + +HELP_FILES+= help.uboot ${BOOTSRC}/fdt/help.fdt + +# Always add MI sources +.include "${BOOTSRC}/loader.mk" + +CFLAGS+= -ffreestanding -msoft-float + +LDFLAGS= -nostdlib -static -T ${.CURDIR}/ldscript.${MACHINE_CPUARCH} +LDFLAGS+= -Wl,-znotext + +# Pull in common loader code +.include "${BOOTSRC}/uboot.mk" + +CFLAGS+= -fPIC + +DPADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBUBOOT_FDT} ${LIBSA} +LDADD= ${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBUBOOT_FDT} ${LIBSA} + +OBJS+= ${SRCS:N*.h:R:S/$/.o/g} + +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 ${.TARGET} + +CLEANFILES+= ldscript.abs ldscript.pie ubldr ubldr.pie ubldr.bin + +.include <bsd.prog.mk> diff --git a/stand/arm/uboot/conf.c b/stand/arm/uboot/conf.c new file mode 100644 index 0000000..777a7b2 --- /dev/null +++ b/stand/arm/uboot/conf.c @@ -0,0 +1,97 @@ +/*- + * Copyright (c) 2008 Semihalf, Rafal Jaworowski + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <stand.h> +#include "bootstrap.h" +#include "libuboot.h" + +#if defined(LOADER_NET_SUPPORT) +#include "dev_net.h" +#endif + +/* Make sure we have an explicit reference to exit so libsa's panic pulls in the MD exit */ +void (*exitfn)(int) = exit; + +struct devsw *devsw[] = { +#if defined(LOADER_DISK_SUPPORT) || defined(LOADER_CD9660_SUPPORT) + &uboot_storage, +#endif +#if defined(LOADER_NET_SUPPORT) + &netdev, +#endif + NULL +}; + +struct fs_ops *file_system[] = { +#if defined(LOADER_UFS_SUPPORT) + &ufs_fsops, +#endif +#if defined(LOADER_CD9660_SUPPORT) + &cd9660_fsops, +#endif +#if defined(LOADER_EXT2FS_SUPPORT) + &ext2fs_fsops, +#endif +#if defined(LOADER_NANDFS_SUPPORT) + &nandfs_fsops, +#endif +#if defined(LOADER_NFS_SUPPORT) + &nfs_fsops, +#endif +#if defined(LOADER_TFTP_SUPPORT) + &tftp_fsops, +#endif +#if defined(LOADER_GZIP_SUPPORT) + &gzipfs_fsops, +#endif +#if defined(LOADER_BZIP2_SUPPORT) + &bzipfs_fsops, +#endif + NULL +}; + +struct netif_driver *netif_drivers[] = { +#if defined(LOADER_NET_SUPPORT) + &uboot_net, +#endif + NULL, +}; + +struct file_format *file_formats[] = { + &uboot_elf, + NULL +}; + +extern struct console uboot_console; + +struct console *consoles[] = { + &uboot_console, + NULL +}; diff --git a/stand/arm/uboot/help.uboot b/stand/arm/uboot/help.uboot new file mode 100644 index 0000000..c1574af --- /dev/null +++ b/stand/arm/uboot/help.uboot @@ -0,0 +1,27 @@ +$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. + diff --git a/stand/arm/uboot/ldscript.arm b/stand/arm/uboot/ldscript.arm new file mode 100644 index 0000000..8eb604c --- /dev/null +++ b/stand/arm/uboot/ldscript.arm @@ -0,0 +1,134 @@ +/* $FreeBSD$ */ + +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = UBLDR_LOADADDR + SIZEOF_HEADERS; + . = ALIGN(8); + .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 doubleword boundary. */ + . = ALIGN(8); + .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 . */ +} diff --git a/stand/arm/uboot/start.S b/stand/arm/uboot/start.S new file mode 100644 index 0000000..ede6a62 --- /dev/null +++ b/stand/arm/uboot/start.S @@ -0,0 +1,145 @@ +/*- + * 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: + +#ifdef _ARM_ARCH_6 + mrc p15, 0, ip, c1, c0, 0 + orr ip, ip, #(CPU_CONTROL_UNAL_ENABLE) + orr ip, ip, #(CPU_CONTROL_AFLT_ENABLE) + mcr p15, 0, ip, c1, c0, 0 +#endif + + /* Save the arguments and return register before calling self_reloc */ + push {r0, r1, r9, lr} + + /* + * 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. + */ + adr ip, .here_off /* .here_off is a symbol whose value */ + ldr r0, [ip] /* is its own offset in the text seg. */ + sub r0, ip, r0 /* Get its pc-relative address and */ + ldr r1, .dynamic_off /* subtract its value and we get */ + teq r1, #0 /* r0 = physaddr we were loaded at. */ + addne r1, r1, r0 /* r1 = dynamic section physaddr. */ + blne _C_LABEL(self_reloc) /* Do reloc if _DYNAMIC is non-NULL. */ + + /* Restore saved arguments */ + pop {r0, r1, r9, lr} + + /* Hint where to look for the API signature */ + ldr ip, =uboot_address + str sp, [ip] + + /* Save U-Boot's r8 and r9 for syscall trampoline */ + ldr ip, =saved_regs + str r8, [ip, #0] /* old gd pointer (use to hold lr) */ + str r9, [ip, #4] /* new gd pointer */ + + /* + * Start loader. Save return address first (r8 is available from + * trampoline save). + */ + mov r8, lr + bl main + mov lr, r8 + + /* Restore U-Boot environment */ + ldr ip, =saved_regs + ldr r8, [ip, #0] + ldr r9, [ip, #4] + mov pc, lr + + /* + * Data for self-relocation, in the text segment for pc-rel access. + */ +.here_off: + .word . +.dynamic_off: + .word _DYNAMIC + +/* + * syscall() + */ +ENTRY(syscall) + /* Save caller's lr, r8 and r9 */ + ldr ip, =saved_regs + str r8, [ip, #8] + str r9, [ip, #12] + str lr, [ip, #16] + /* Restore U-Boot's r8 and r9 */ + ldr r8, [ip, #0] + ldr r9, [ip, #4] + /* Call into U-Boot */ + ldr lr, =return_from_syscall + ldr ip, =syscall_ptr + ldr pc, [ip] +return_from_syscall: + /* Restore loader's r8, r9 and lr */ + ldr ip, =saved_regs + ldr lr, [ip, #16] + ldr r9, [ip, #12] + ldr r8, [ip, #8] + /* Return to caller */ + mov pc, lr + +/* + * Data section + */ + .data + .align 4 + .globl syscall_ptr +syscall_ptr: + .long 0 + + .globl uboot_address +uboot_address: + .long 0 + +saved_regs: + .long 0 /* U-Boot's r8 */ + .long 0 /* U-Boot's r9 */ + .long 0 /* Loader's r8 */ + .long 0 /* Loader's r9 */ + .long 0 /* Loader's lr */ diff --git a/stand/arm/uboot/version b/stand/arm/uboot/version new file mode 100644 index 0000000..486c412 --- /dev/null +++ b/stand/arm/uboot/version @@ -0,0 +1,9 @@ +$FreeBSD$ + +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. + +1.2: Extended with NAND FS support. +1.1: Flattened Device Tree blob support. +1.0: Added storage support. Booting from HDD, USB, etc. is now possible. +0.5: Initial U-Boot/arm version (netbooting only). |
