git: ef72e52e8e0e - stable/13 - stand/mips: retire BERI boot loader

From: Warner Losh <imp_at_FreeBSD.org>
Date: Wed, 25 Jan 2023 18:37:00 UTC
The branch stable/13 has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=ef72e52e8e0e26590e85ce8a96ac0bcfae6807ab

commit ef72e52e8e0e26590e85ce8a96ac0bcfae6807ab
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2023-01-25 18:31:00 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2023-01-25 18:33:20 +0000

    stand/mips: retire BERI boot loader
    
    The folks that created the BERI boot loader no longer need it. They've
    long since moved on to other research platforms. Since BERI loader
    contains yet another copy of code that I've consolodated; and since it's
    impossible to test this platform; and since there are no users, retire
    it completely to ease future MFCs.
    
    OK'd by:        brooks@
    Sponsored by:   Netflix
    
    This is a direct commit to stable/13
---
 stand/mips/Makefile                       |  14 -
 stand/mips/Makefile.inc                   |   3 -
 stand/mips/beri/Makefile                  |   5 -
 stand/mips/beri/Makefile.inc              |   9 -
 stand/mips/beri/boot2/Makefile            |  78 ----
 stand/mips/beri/boot2/boot2.c             | 669 ------------------------------
 stand/mips/beri/boot2/flashboot.ldscript  |  65 ---
 stand/mips/beri/boot2/jtagboot.ldscript   |  64 ---
 stand/mips/beri/boot2/relocate.S          | 103 -----
 stand/mips/beri/boot2/start.S             |  82 ----
 stand/mips/beri/common/altera_jtag_uart.c | 175 --------
 stand/mips/beri/common/beri.h             |  42 --
 stand/mips/beri/common/cfi.c              |  75 ----
 stand/mips/beri/common/cfi.h              |  40 --
 stand/mips/beri/common/common.ldscript    |  76 ----
 stand/mips/beri/common/cons.h             |  40 --
 stand/mips/beri/common/mips.h             | 156 -------
 stand/mips/beri/common/sdcard.c           | 333 ---------------
 stand/mips/beri/common/sdcard.h           |  41 --
 stand/mips/beri/loader/Makefile           | 109 -----
 stand/mips/beri/loader/arch.c             |  97 -----
 stand/mips/beri/loader/beri_console.c     |  90 ----
 stand/mips/beri/loader/beri_disk_cfi.c    | 141 -------
 stand/mips/beri/loader/beri_disk_sdcard.c | 147 -------
 stand/mips/beri/loader/devicename.c       | 207 ---------
 stand/mips/beri/loader/exec.c             | 125 ------
 stand/mips/beri/loader/gfx_fb.c           |  78 ----
 stand/mips/beri/loader/help.mips          |   1 -
 stand/mips/beri/loader/loader.h           |  61 ---
 stand/mips/beri/loader/loader.ldscript    |  84 ----
 stand/mips/beri/loader/main.c             | 245 -----------
 stand/mips/beri/loader/start.S            |  49 ---
 stand/mips/beri/loader/version            |   6 -
 33 files changed, 3510 deletions(-)

diff --git a/stand/mips/Makefile b/stand/mips/Makefile
deleted file mode 100644
index e0c80f9ac031..000000000000
--- a/stand/mips/Makefile
+++ /dev/null
@@ -1,14 +0,0 @@
-# $FreeBSD$
-
-NO_OBJ=t
-
-#
-# The BERI boot loader port works only on 64-bit MIPS; not a hard port to
-# 32-bit if someone is interested.  Build on all 64-bit MIPS platforms to
-# ensure it gets adequate build-test coverage.
-#
-.if ${MACHINE_ARCH} == "mips64"
-SUBDIR+=	beri
-.endif
-
-.include <bsd.subdir.mk>
diff --git a/stand/mips/Makefile.inc b/stand/mips/Makefile.inc
deleted file mode 100644
index 265f86d1ed55..000000000000
--- a/stand/mips/Makefile.inc
+++ /dev/null
@@ -1,3 +0,0 @@
-# $FreeBSD$
-
-.include "../Makefile.inc"
diff --git a/stand/mips/beri/Makefile b/stand/mips/beri/Makefile
deleted file mode 100644
index afcb538816b8..000000000000
--- a/stand/mips/beri/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# $FreeBSD$
-
-SUBDIR=	boot2 loader
-
-.include <bsd.subdir.mk>
diff --git a/stand/mips/beri/Makefile.inc b/stand/mips/beri/Makefile.inc
deleted file mode 100644
index a95ca3dc1861..000000000000
--- a/stand/mips/beri/Makefile.inc
+++ /dev/null
@@ -1,9 +0,0 @@
-# $FreeBSD$
-
-LDFLAGS+=	-nostdlib
-
-# BERI boot loader is built with '-mno-abicalls' flag,
-# which is incompatible with PIE
-MK_PIE=		no
-
-.include "../Makefile.inc"
diff --git a/stand/mips/beri/boot2/Makefile b/stand/mips/beri/boot2/Makefile
deleted file mode 100644
index afc061b4eb05..000000000000
--- a/stand/mips/beri/boot2/Makefile
+++ /dev/null
@@ -1,78 +0,0 @@
-#-
-# Copyright (c) 2013-2014 Robert N. M. Watson
-# All rights reserved.
-#
-# This software was developed by SRI International and the University of
-# Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
-# ("CTSRD"), as part of the DARPA CRASH research programme.
-#
-# 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 <bsd.init.mk>
-
-INSTALLFLAGS=	-b
-
-LOADERS=	flashboot jtagboot
-FILES=		${LOADERS} ${LOADERS:S/$/.md5/}
-
-SRCS=		relocate.S		\
-		start.S			\
-		boot2.c			\
-		altera_jtag_uart.c	\
-		cfi.c			\
-		sdcard.c
-
-AFLAGS=		-G0
-
-CFLAGS+=	-I${LDRSRC}			\
-		-Wall				\
-		-G0 				\
-		-fno-pic -mno-abicalls		\
-		-g
-
-LDFLAGS+=	-static				\
-		-Wl,-N				\
-		-G0				\
-		-L${.CURDIR}
-
-.PATH:		${BOOTSRC}/mips/beri/common
-CFLAGS+=	-I${BOOTSRC}/mips/beri/common
-
-flashboot.elf: relocate.o start.o boot2.o altera_jtag_uart.o cfi.o sdcard.o
-	${CC:N${CCACHE_BIN}} ${LDFLAGS} -T ${.CURDIR}/flashboot.ldscript \
-	    -o ${.TARGET} ${.ALLSRC} ${LIBSA}
-flashboot: flashboot.elf
-	${OBJCOPY} -S -O binary ${.TARGET}.elf ${.TARGET}
-flashboot.md5: flashboot
-	md5 flashboot > flashboot.md5
-
-jtagboot: start.o boot2.o altera_jtag_uart.o cfi.o sdcard.o
-	${CC:N${CCACHE_BIN}} ${LDFLAGS} -T ${.CURDIR}/jtagboot.ldscript \
-	    -o ${.TARGET} ${.ALLSRC} ${LIBSA}
-jtagboot.md5: jtagboot
-	md5 jtagboot > jtagboot.md5
-
-CLEANFILES+=	flashboot.elf
-
-.include <bsd.prog.mk>
diff --git a/stand/mips/beri/boot2/boot2.c b/stand/mips/beri/boot2/boot2.c
deleted file mode 100644
index f771da856e4c..000000000000
--- a/stand/mips/beri/boot2/boot2.c
+++ /dev/null
@@ -1,669 +0,0 @@
-/*-
- * Copyright (c) 2013-2014 Robert N. M. Watson
- * All rights reserved.
- *
- * This software was developed by SRI International and the University of
- * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
- * ("CTSRD"), as part of the DARPA CRASH research programme.
- *
- * 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.
- *
- * Copyright (c) 1998 Robert Nordier
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are freely
- * permitted provided that the above copyright notice and this
- * paragraph and the following disclaimer are duplicated in all
- * such forms.
- *
- * This software is provided "AS IS" and without any express or
- * implied warranties, including, without limitation, the implied
- * warranties of merchantability and fitness for a particular
- * purpose.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/disklabel.h>
-#include <sys/diskmbr.h>
-#include <sys/dirent.h>
-#include <sys/endian.h>
-#include <sys/reboot.h>
-
-#include <machine/bootinfo.h>
-#include <machine/elf.h>
-
-#include <stand.h>
-#include <stdarg.h>
-#include <string.h>
-
-#include <beri.h>
-#include <cfi.h>
-#include <cons.h>
-#include <mips.h>
-#include <sdcard.h>
-
-#include "paths.h"
-#include "rbx.h"
-
-static int		 beri_argc;
-static const char	**beri_argv, **beri_envv;
-static uint64_t		 beri_memsize;
-
-#define IO_KEYBOARD	1
-#define IO_SERIAL	2
-
-#define SECOND		1	/* Circa that many ticks in a second. */
-
-#define ARGS		0x900
-#define NOPT		14
-#define MEM_BASE	0x12
-#define MEM_EXT 	0x15
-
-/*
- * XXXRW: I think this has to do with whether boot2 expects a partition
- * table?
- */
-#define DRV_HARD	0x80
-#define DRV_MASK	0x7f
-
-/* Default to using CFI flash. */
-#define	TYPE_DEFAULT	BOOTINFO_DEV_TYPE_SDCARD
-
-/* Hard-coded assumption about location of JTAG-loaded kernel. */
-#define	DRAM_KERNEL_ADDR	((void *)mips_phys_to_cached(0x20000))
-
-extern uint32_t _end;
-
-static const char optstr[NOPT] = "DhaCcdgmnpqrsv"; /* Also 'P', 'S' */
-static const unsigned char flags[NOPT] = {
-    RBX_DUAL,
-    RBX_SERIAL,
-    RBX_ASKNAME,
-    RBX_CDROM,
-    RBX_CONFIG,
-    RBX_KDB,
-    RBX_GDB,
-    RBX_MUTE,
-    RBX_NOINTR,
-    RBX_PAUSE,
-    RBX_QUIET,
-    RBX_DFLTROOT,
-    RBX_SINGLE,
-    RBX_VERBOSE
-};
-
-/* These must match BOOTINFO_DEV_TYPE constants. */
-static const char *const dev_nm[] = {"dram", "cfi", "sdcard"};
-static const u_int dev_nm_count = nitems(dev_nm);
-
-static struct dsk {
-    unsigned type;		/* BOOTINFO_DEV_TYPE_x object type. */
-    uintptr_t unitptr;		/* Unit number or pointer to object. */
-    uint8_t slice;
-    uint8_t part;
-#if 0
-    unsigned start;
-    int init;
-#endif
-} dsk;
-static char cmd[512], cmddup[512], knamebuf[1024];
-static const char *kname;
-uint32_t opts;
-#if 0
-static int comspeed = SIOSPD;
-#endif
-struct bootinfo bootinfo;
-static uint8_t ioctrl = IO_KEYBOARD;
-
-void putchar(int);
-static void boot_fromdram(void);
-static void boot_fromfs(void);
-static void load(void);
-static int parse(void);
-static int dskread(void *, unsigned, unsigned);
-static int xputc(int);
-static int xgetc(int);
-
-#define	UFS_SMALL_CGBASE
-#include "ufsread.c"
-
-static struct dmadat __dmadat;
-
-static inline int
-xfsread(ufs_ino_t inode, void *buf, size_t nbyte)
-{
-    if ((size_t)fsread(inode, buf, nbyte) != nbyte) {
-	printf("Invalid %s\n", "format");
-	return -1;
-    }
-    return 0;
-}
-
-static inline void
-getstr(void)
-{
-    char *s;
-    int c;
-
-    s = cmd;
-    for (;;) {
-	switch (c = xgetc(0)) {
-	case 0:
-	    break;
-	case '\177':
-	case '\b':
-	    if (s > cmd) {
-		s--;
-		printf("\b \b");
-	    }
-	    break;
-	case '\n':
-	case '\r':
-		putchar('\n');
-	    *s = 0;
-	    return;
-	default:
-	    if (s - cmd < sizeof(cmd) - 1)
-		*s++ = c;
-	    putchar(c);
-	}
-    }
-}
-
-int
-main(u_int argc, const char *argv[], const char *envv[], uint64_t memsize)
-{
-    uint8_t autoboot;
-    ufs_ino_t ino;
-    size_t nbyte;
-
-    /* Arguments from Miniboot. */
-    beri_argc = argc;
-    beri_argv = argv;
-    beri_envv = envv;
-    beri_memsize = memsize;
-
-    dmadat = &__dmadat;
-#if 0
-    /* XXXRW: more here. */
-    v86.ctl = V86_FLAGS;
-    v86.efl = PSL_RESERVED_DEFAULT | PSL_I;
-    dsk.drive = *(uint8_t *)PTOV(ARGS);
-#endif
-    dsk.type = TYPE_DEFAULT;
-#if 0
-    dsk.unit = dsk.drive & DRV_MASK;
-    dsk.slice = *(uint8_t *)PTOV(ARGS + 1) + 1;
-#endif
-    bootinfo.bi_version = BOOTINFO_VERSION;
-    bootinfo.bi_size = sizeof(bootinfo);
-
-    /* Process configuration file */
-
-    autoboot = 1;
-
-    if ((ino = lookup(PATH_CONFIG)) ||
-        (ino = lookup(PATH_DOTCONFIG))) {
-	nbyte = fsread(ino, cmd, sizeof(cmd) - 1);
-	cmd[nbyte] = '\0';
-    }
-
-    if (*cmd) {
-	memcpy(cmddup, cmd, sizeof(cmd));
-	if (parse())
-	    autoboot = 0;
-	if (!OPT_CHECK(RBX_QUIET))
-	    printf("%s: %s", PATH_CONFIG, cmddup);
-	/* Do not process this command twice */
-	*cmd = 0;
-    }
-
-    /*
-     * Try to exec stage 3 boot loader. If interrupted by a keypress,
-     * or in case of failure, try to load a kernel directly instead.
-     */
-
-    if (!kname) {
-	kname = PATH_LOADER;
-	if (autoboot && !keyhit(3*SECOND)) {
-	    boot_fromfs();
-	    kname = PATH_KERNEL;
-	}
-    }
-
-    /* Present the user with the boot2 prompt. */
-
-    for (;;) {
-	if (!autoboot || !OPT_CHECK(RBX_QUIET))
-	    printf("\nFreeBSD/mips boot\n"
-		   "Default: %s%ju:%s\n"
-		   "boot: ",
-		   dev_nm[dsk.type], dsk.unitptr, kname);
-#if 0
-	if (ioctrl & IO_SERIAL)
-	    sio_flush();
-#endif
-	if (!autoboot || keyhit(3*SECOND))
-	    getstr();
-	else if (!autoboot || !OPT_CHECK(RBX_QUIET))
-	    putchar('\n');
-	autoboot = 0;
-	if (parse())
-	    putchar('\a');
-	else
-	    load();
-    }
-}
-
-static void
-boot(void *entryp, int argc, const char *argv[], const char *envv[])
-{
-
-    bootinfo.bi_kernelname = (bi_ptr_t)kname;
-    bootinfo.bi_boot2opts = opts & RBX_MASK;
-    bootinfo.bi_boot_dev_type = dsk.type;
-    bootinfo.bi_boot_dev_unitptr = dsk.unitptr;
-    bootinfo.bi_memsize = beri_memsize;
-#if 0
-    /*
-     * XXXRW: A possible future way to distinguish Miniboot passing a memory
-     * size vs DTB..?
-     */
-    if (beri_memsize <= BERI_MEMVSDTB)
-	bootinfo.bi_memsize = beri_memsize;
-    else
-	bootinfo.bi_dtb = beri_memsize;
-#endif
-    ((void(*)(int, const char **, const char **, void *))entryp)(argc, argv,
-      envv, &bootinfo);
-}
-
-/*
- * Boot a kernel that has mysteriously (i.e., by JTAG) appeared in DRAM;
- * assume that it is already properly relocated, etc, and invoke its entry
- * address without question or concern.
- */
-static void
-boot_fromdram(void)
-{
-    void *kaddr = DRAM_KERNEL_ADDR;	/* XXXRW: Something better here. */
-    Elf64_Ehdr *ehp = kaddr;
-
-    if (!IS_ELF(*ehp)) {
-	printf("Invalid %s\n", "format");
-	return;
-    }
-    boot((void *)ehp->e_entry, beri_argc, beri_argv, beri_envv);
-}
-
-static void
-boot_fromfs(void)
-{
-    union {
-	Elf64_Ehdr eh;
-    } hdr;
-    static Elf64_Phdr ep[2];
-#if 0
-    static Elf64_Shdr es[2];
-#endif
-    caddr_t p;
-    ufs_ino_t ino;
-    uint64_t addr;
-    int i, j;
-
-    if (!(ino = lookup(kname))) {
-	if (!ls)
-	    printf("No %s\n", kname);
-	return;
-    }
-    if (xfsread(ino, &hdr, sizeof(hdr)))
-	return;
-
-    if (IS_ELF(hdr.eh)) {
-	fs_off = hdr.eh.e_phoff;
-	for (j = i = 0; i < hdr.eh.e_phnum && j < 2; i++) {
-	    if (xfsread(ino, ep + j, sizeof(ep[0])))
-		return;
-	    if (ep[j].p_type == PT_LOAD)
-		j++;
-	}
-	for (i = 0; i < 2; i++) {
-	    p = (caddr_t)ep[i].p_paddr;
-	    fs_off = ep[i].p_offset;
-	    if (xfsread(ino, p, ep[i].p_filesz))
-		return;
-	}
-	p += roundup2(ep[1].p_memsz, PAGE_SIZE);
-#if 0
-	bootinfo.bi_symtab = VTOP(p);
-	if (hdr.eh.e_shnum == hdr.eh.e_shstrndx + 3) {
-	    fs_off = hdr.eh.e_shoff + sizeof(es[0]) *
-		(hdr.eh.e_shstrndx + 1);
-	    if (xfsread(ino, &es, sizeof(es)))
-		return;
-	    for (i = 0; i < 2; i++) {
-		*(Elf32_Word *)p = es[i].sh_size;
-		p += sizeof(es[i].sh_size);
-		fs_off = es[i].sh_offset;
-		if (xfsread(ino, p, es[i].sh_size))
-		    return;
-		p += es[i].sh_size;
-	    }
-	}
-#endif
-	addr = hdr.eh.e_entry;
-#if 0
-	bootinfo.bi_esymtab = VTOP(p);
-#endif
-    } else {
-	printf("Invalid %s\n", "format");
-	return;
-    }
-    boot((void *)addr, beri_argc, beri_argv, beri_envv);
-}
-
-static void
-load(void)
-{
-
-	switch (dsk.type) {
-	case BOOTINFO_DEV_TYPE_DRAM:
-		boot_fromdram();
-		break;
-
-	default:
-		boot_fromfs();
-		break;
-	}
-}
-
-static int
-parse()
-{
-    char *arg = cmd;
-    char *ep, *p, *q;
-    char unit;
-    size_t len;
-    const char *cp;
-#if 0
-    int c, i, j;
-#else
-    int c, i;
-#endif
-
-    while ((c = *arg++)) {
-	if (c == ' ' || c == '\t' || c == '\n')
-	    continue;
-	for (p = arg; *p && *p != '\n' && *p != ' ' && *p != '\t'; p++);
-	ep = p;
-	if (*p)
-	    *p++ = 0;
-	if (c == '-') {
-	    while ((c = *arg++)) {
-		if (c == 'P') {
-			cp = "yes";
-#if 0
-		    } else {
-			opts |= OPT_SET(RBX_DUAL) | OPT_SET(RBX_SERIAL);
-			cp = "no";
-		    }
-#endif
-		    printf("Keyboard: %s\n", cp);
-		    continue;
-#if 0
-		} else if (c == 'S') {
-		    j = 0;
-		    while ((unsigned int)(i = *arg++ - '0') <= 9)
-			j = j * 10 + i;
-		    if (j > 0 && i == -'0') {
-			comspeed = j;
-			break;
-		    }
-		    /* Fall through to error below ('S' not in optstr[]). */
-#endif
-		}
-		for (i = 0; c != optstr[i]; i++)
-		    if (i == NOPT - 1)
-			return -1;
-		opts ^= OPT_SET(flags[i]);
-	    }
-	    ioctrl = OPT_CHECK(RBX_DUAL) ? (IO_SERIAL|IO_KEYBOARD) :
-		     OPT_CHECK(RBX_SERIAL) ? IO_SERIAL : IO_KEYBOARD;
-#if 0
-	    if (ioctrl & IO_SERIAL) {
-	        if (sio_init(115200 / comspeed) != 0)
-		    ioctrl &= ~IO_SERIAL;
-	    }
-#endif
-	} else {
-	    /*-
-	     * Parse a device/kernel name.  Format(s):
-	     *
-	     *   path
-	     *   deviceX:path
-	     *
-	     * NB: Utterly incomprehensible but space-efficient ARM/i386
-	     * parsing removed in favour of larger but easier-to-read C.  This
-	     * is still not great, however -- e.g., relating to unit handling.
-	     *
-	     * TODO: it would be nice if a DRAM pointer could be specified
-	     * here.
-	     *
-	     * XXXRW: Pick up pieces here.
-	     */
-
-	    /*
-	     * Search for a parens; if none, then it's just a path.
-	     * Otherwise, it's a devicename.
-	     */
-	    arg--;
-	    q = strsep(&arg, ":");
-	    if (arg != NULL) {
-		len = strlen(q);
-		if (len < 2) {
-		    printf("Invalid device: name too short\n");
-		    return (-1);
-		}
-
-		/*
-		 * First, handle one-digit unit.
-		 */
-		unit = q[len-1];
-		if (unit < '0' || unit > '9') {
-		    printf("Invalid device: invalid unit %c\n",
-		      unit);
-		    return (-1);
-		}
-		unit -= '0';
-		q[len-1] = '\0';
-
-		/*
-		 * Next, find matching device.
-		 */
-		for (i = 0; i < dev_nm_count; i++) {
-		    if (strcmp(q, dev_nm[i]) == 0)
-			break;
-		}
-		if (i == dev_nm_count) {
-		    printf("Invalid device: no driver match\n");
-		    return (-1);
-		}
-		dsk.type = i;
-		dsk.unitptr = unit;	/* Someday: also a DRAM pointer? */
-	    } else
-		arg = q;
-	    if ((i = ep - arg)) {
-		if ((size_t)i >= sizeof(knamebuf))
-		    return -1;
-		memcpy(knamebuf, arg, i + 1);
-		kname = knamebuf;
-	    }
-	}
-	arg = p;
-    }
-    return 0;
-}
-
-static int
-drvread(void *buf, unsigned lba, unsigned nblk)
-{
-
-	/* XXXRW: eventually, we may want to pass 'drive' and 'unit' here. */
-	switch (dsk.type) {
-	case BOOTINFO_DEV_TYPE_CFI:
-		return (cfi_read(buf, lba, nblk));
-
-	case BOOTINFO_DEV_TYPE_SDCARD:
-		return (altera_sdcard_read(buf, lba, nblk));
-
-	default:
-		return (-1);
-	}
-}
-
-static int
-dskread(void *buf, unsigned lba, unsigned nblk)
-{
-#if 0
-    /*
-     * XXXRW: For now, assume no partition table around the file system; it's
-     * just in raw flash.
-     */
-    struct dos_partition *dp;
-    struct disklabel *d;
-    char *sec;
-    unsigned i;
-    uint8_t sl;
-
-    if (!dsk_meta) {
-	sec = dmadat->secbuf;
-	dsk.start = 0;
-	if (drvread(sec, DOSBBSECTOR, 1))
-	    return -1;
-	dp = (void *)(sec + DOSPARTOFF);
-	sl = dsk.slice;
-	if (sl < BASE_SLICE) {
-	    for (i = 0; i < NDOSPART; i++)
-		if (dp[i].dp_typ == DOSPTYP_386BSD &&
-		    (dp[i].dp_flag & 0x80 || sl < BASE_SLICE)) {
-		    sl = BASE_SLICE + i;
-		    if (dp[i].dp_flag & 0x80 ||
-			dsk.slice == COMPATIBILITY_SLICE)
-			break;
-		}
-	    if (dsk.slice == WHOLE_DISK_SLICE)
-		dsk.slice = sl;
-	}
-	if (sl != WHOLE_DISK_SLICE) {
-	    if (sl != COMPATIBILITY_SLICE)
-		dp += sl - BASE_SLICE;
-	    if (dp->dp_typ != DOSPTYP_386BSD) {
-		printf("Invalid %s\n", "slice");
-		return -1;
-	    }
-	    dsk.start = le32toh(dp->dp_start);
-	}
-	if (drvread(sec, dsk.start + LABELSECTOR, 1))
-		return -1;
-	d = (void *)(sec + LABELOFFSET);
-	if (le32toh(d->d_magic) != DISKMAGIC ||
-	    le32toh(d->d_magic2) != DISKMAGIC) {
-	    if (dsk.part != RAW_PART) {
-		printf("Invalid %s\n", "label");
-		return -1;
-	    }
-	} else {
-	    if (!dsk.init) {
-		if (le16toh(d->d_type) == DTYPE_SCSI)
-		    dsk.type = TYPE_DA;
-		dsk.init++;
-	    }
-	    if (dsk.part >= le16toh(d->d_npartitions) ||
-		!(le32toh(d->d_partitions[dsk.part].p_size))) {
-		printf("Invalid %s\n", "partition");
-		return -1;
-	    }
-	    dsk.start += le32toh(d->d_partitions[dsk.part].p_offset);
-	    dsk.start -= le32toh(d->d_partitions[RAW_PART].p_offset);
-	}
-    }
-    return drvread(buf, dsk.start + lba, nblk);
-#else
-    return drvread(buf, lba, nblk);
-#endif
-}
-
-void
-putchar(int c)
-{
-    if (c == '\n')
-	xputc('\r');
-    xputc(c);
-}
-
-static int
-xputc(int c)
-{
-    if (ioctrl & IO_KEYBOARD)
-	beri_putc(c);
-#if 0
-    if (ioctrl & IO_SERIAL)
-	sio_putc(c);
-#endif
-    return c;
-}
-
-static int
-xgetc(int fn)
-{
-    if (OPT_CHECK(RBX_NOINTR))
-	return 0;
-    for (;;) {
-	if (ioctrl & IO_KEYBOARD && keyhit(0))
-	    return fn ? 1 : beri_getc();
-#if 0
-	if (ioctrl & IO_SERIAL && sio_ischar())
-	    return fn ? 1 : sio_getc();
-#endif
-	if (fn)
-	    return 0;
-    }
-}
-
-int
-getchar(void)
-{
-
-	return xgetc(0);
-}
-
-void
-exit(int code)
-{
-
-        printf("error: loader exit\n");
-        while (1);
-        __unreachable();
-}
diff --git a/stand/mips/beri/boot2/flashboot.ldscript b/stand/mips/beri/boot2/flashboot.ldscript
deleted file mode 100644
index 4d61438bd9b8..000000000000
--- a/stand/mips/beri/boot2/flashboot.ldscript
+++ /dev/null
@@ -1,65 +0,0 @@
-/*-
- * Copyright (c) 2011-2014 Robert N. M. Watson
- * All rights reserved.
- *
- * This software was developed by SRI International and the University of
- * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
- * ("CTSRD"), as part of the DARPA CRASH research programme.
- *
- * 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 ../common/common.ldscript
-
-/*
- * When boot2 is loaded via JTAG, it's dropped at 0x10000, and will not need
- * to self-relocate, since it will be in DRAM.
- */
-__boot2_base__ = 0x100000;
-__boot2_base_vaddr__ = __mips64_xkphys_cached__ + __boot2_base__;
-
-/*
- * XXXRW: Currently, miniboot interprets the ELF header rather than jumping
- * straight into the loader.  For now, give the location where we know it will
- * be.
- */
-ENTRY(prerelocate_start)
-SECTIONS
-{
-	. = __boot2_base_vaddr__;
-	. += SIZEOF_HEADERS;
-	.text ALIGN(0x10): {
-		relocate.o(.text)
-		start.o(.text)
-		*(EXCLUDE_FILE (relocate.o start.o) .text)
-	}
-	.data ALIGN(0x10): { *(.data)}
-	.bss ALIGN(0x10): { *(.bss) }
-
-	__heap = ALIGN(0x8);	/* 64-bit aligned heap pointer */
-	__data_end = .;
-	__boot_loader_len__ = . - __boot2_base_vaddr__;
-	__bss_start = ADDR(.bss);
-	__bss_end = ALIGN(__bss_start + SIZEOF(.bss), 0x8);
-}
diff --git a/stand/mips/beri/boot2/jtagboot.ldscript b/stand/mips/beri/boot2/jtagboot.ldscript
deleted file mode 100644
index 064c6e15d038..000000000000
--- a/stand/mips/beri/boot2/jtagboot.ldscript
+++ /dev/null
@@ -1,64 +0,0 @@
-/*-
- * Copyright (c) 2011-2014 Robert N. M. Watson
- * All rights reserved.
- *
- * This software was developed by SRI International and the University of
- * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
- * ("CTSRD"), as part of the DARPA CRASH research programme.
- *
- * 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 ../common/common.ldscript
-
-/*
- * When boot2 is loaded via JTAG, it's dropped at 0x10000, and will not need
- * to self-relocate, since it will be in DRAM.
- */
*** 2779 LINES SKIPPED ***