Very initial support for booting PPC kernels on P5 boards.
This commit is contained in:
is
parent
14ed33e42e
commit
4905974fd1
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@ -1,8 +1,8 @@
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/*
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* $NetBSD: main.c,v 1.10 1998/11/13 22:12:35 is Exp $
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* $NetBSD: main.c,v 1.11 1999/11/28 22:10:47 is Exp $
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*
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*
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* Copyright (c) 1996 Ignatios Souvatzis
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* Copyright (c) 1996,1999 Ignatios Souvatzis
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* Copyright (c) 1994 Michael L. Hitch
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* All rights reserved.
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*
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@ -62,8 +62,13 @@
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void startit __P((void *, u_long, u_long, void *, u_long, u_long, int, void *,
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int, int, u_long, u_long, u_long, int));
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void startit_end __P((void));
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int get_cpuid __P((u_int32_t *));
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#ifdef PPCBOOTER
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u_int16_t kickstart[];
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size_t kicksize;
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#else
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void startit_end __P((void));
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#endif
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/*
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* Kernel startup interface version
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@ -78,7 +83,7 @@ int get_cpuid __P((u_int32_t *));
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static long get_number(char **);
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#define VERSION "2.1"
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#define VERSION "2.2"
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char default_command[] = "netbsd -ASn2";
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@ -108,7 +113,7 @@ pain(aio)
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/* int skip_chipmem = 0; */
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void (*start_it)(void *, u_long, u_long, void *, u_long, u_long, int,
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void *, int, int, u_long, u_long, u_long, int) = startit;
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void *, int, int, u_long, u_long, u_long, int);
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caddr_t kp;
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u_int16_t *kvers;
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@ -145,8 +150,13 @@ pain(aio)
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goto out;
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}
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#ifdef PPCBOOTER
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printf("\2337mNetBSD/AmigaPPC bootblock " VERSION "\2330m\n%s :- ",
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kernel_name);
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#else
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printf("\2337mNetBSD/Amiga bootblock " VERSION "\2330m\n%s :- ",
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kernel_name);
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#endif
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timelimit = 3;
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gets(linebuf);
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@ -332,10 +342,14 @@ pain(aio)
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goto err;
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}
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#ifdef PPCBOOTER
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/* XXX to be done */
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#else
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if ((N_GETMAGIC(ehs) != NMAGIC) || (N_GETMID(ehs) != MID_M68K)) {
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errno = ENOEXEC;
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goto err;
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}
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#endif
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textsz = (ehs.a_text + __LDPGSZ - 1) & (-__LDPGSZ);
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esym = 0;
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@ -352,23 +366,28 @@ pain(aio)
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goto err;
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ksize += ehs.a_syms + 4 + ((stringsz + 3) & ~3);
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}
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#ifdef PPCBOOTER
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kp = alloc(ksize);
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#else
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kp = alloc(ksize + 256 + ((u_char *)startit_end - (u_char *)startit));
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#endif
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if (kp == 0) {
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errno = ENOMEM;
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goto err;
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}
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printf("%ld", ehs.a_text);
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if (read(io, kp, ehs.a_text) != ehs.a_text)
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if (ehs.a_text && (read(io, kp, ehs.a_text) != ehs.a_text))
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goto err;
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printf("+%ld", ehs.a_data);
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if (read(io, kp + textsz, ehs.a_data) != ehs.a_data)
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if (ehs.a_data && (read(io, kp + textsz, ehs.a_data) != ehs.a_data))
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goto err;
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printf("+%ld", ehs.a_bss);
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nkcd = (int *)(kp + textsz + ehs.a_data + ehs.a_bss);
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#ifndef PPCBOOTER
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kvers = (u_short *)(kp + ehs.a_entry - 2);
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if (*kvers > KERNEL_STARTUP_VERSION_MAX && *kvers != 0x4e73) {
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@ -384,7 +403,6 @@ pain(aio)
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printf("\nKernel V%ld newer than bootblock V%ld\n",
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(long)*kvers, (long)KERNEL_STARTUP_VERSION);
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#endif
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nkcd = (int *)(kp + textsz + ehs.a_data + ehs.a_bss);
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if (*kvers != 0x4e73 && *kvers > 1 && S_flag && ehs.a_syms) {
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*nkcd++ = ehs.a_syms;
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printf("+[%ld", ehs.a_syms);
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@ -398,6 +416,7 @@ pain(aio)
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esym = (char *)(textsz + ehs.a_data + ehs.a_bss
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+ ehs.a_syms + 4 + ((stringsz + 3) & ~3));
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}
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#endif
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putchar('\n');
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*nkcd = ncd;
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@ -405,10 +424,12 @@ pain(aio)
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while ((cd = FindConfigDev(cd, -1, -1))) {
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*kcd = *cd;
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#ifndef PPCBOOTER
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if (((cpuid >> 24) == 0x7D) &&
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((u_long)kcd->addr < 0x1000000)) {
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kcd->addr += 0x3000000;
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}
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#endif
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++kcd;
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}
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@ -420,6 +441,12 @@ pain(aio)
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while (nseg-- > 0)
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*kmemseg++ = *memseg++;
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#ifdef PPCBOOTER
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/*
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* we use the ppc starter...
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*/
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start_it = startit;
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#else
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/*
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* Copy startup code to end of kernel image and set start_it.
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*/
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@ -427,6 +454,7 @@ pain(aio)
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(char *)startit_end - (char *)startit);
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CacheClearU();
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(caddr_t)start_it = kp + ksize + 256;
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#endif
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printf("*** Loading from %08lx to Fastmem %08lx ***\n",
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(u_long)kp, (u_long)fmem);
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/* sleep(2); */
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@ -448,7 +476,12 @@ pain(aio)
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#endif
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(void)getchar();
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start_it(kp, ksize, ehs.a_entry, (void *)fmem, fmemsz, cmemsz,
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#ifdef PPCBOOTER
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startit
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#else
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start_it
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#endif
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(kp, ksize, ehs.a_entry, (void *)fmem, fmemsz, cmemsz,
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boothowto, esym, cpuid, eclock, amiga_flags, I_flag,
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aio_base >> 9, 1);
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/*NOTREACHED*/
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@ -0,0 +1,111 @@
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# $NetBSD: Makefile,v 1.1 1999/11/28 22:10:48 is Exp $
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### what we need:
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DIR_TOP= ${.CURDIR}/../../../../..
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DIR_SA = ${DIR_TOP}/lib/libsa
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DIR_KERN= ${DIR_TOP}/lib/libkern
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DIR_KERN_MD= ${DIR_TOP}/lib/libkern/arch/$(MACHINE_ARCH)
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DIR_BOOT= ${.CURDIR}/../boot
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.PATH: $(DIR_SA) $(DIR_KERN) $(DIR_KERN_MD) $(DIR_BOOT)
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# prefer our assembler versions over assembler, and assembler over C:
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.SUFFIXES:
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.SUFFIXES: .out .o .po .so .s .S .c .cc .C .f .y .l .ln .m4 .sh
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FILES= xxppcboot fdppcboot
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BINDIR=/usr/mdec
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COBJS = main.o console.o xd.o twiddle.o bzero.o gets.o
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COBJS+= lseek.o open.o read.o close.o dev.o errno.o
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COBJS+= ufs.o ppcstart.o
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SOBJS = alloc.o ashrdi3.o bcopy.o muldi3.o printf.o
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SOBJS += strlen.o strcmp.o
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SOBJS += libstubs.o
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OBJS= $(SOBJS) $(COBJS)
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DEFS = -DPPCBOOTER -D_STANDALONE -DINSECURE -DDEBUG_MEMORY_LIST
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### main target: ###
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all: ${FILES}
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.include <bsd.prog.mk>
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### special rules for bootblocks ###
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INCPATH = -I${DIR_TOP} -I${DIR_TOP}/lib/libsa -I${DIR_BOOT} -I${.CURDIR} -I${.CURDIR}/../../.. -I${.CURDIR}/../aout2bb -I${.OBJDIR}
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AFLAGS += -m68030 -l
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CAFLAGS += -Wa,-l -Wa,-m68030 ${INCPATH}
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COPTIM= -O -fomit-frame-pointer -fcse-follow-jumps -fcse-skip-blocks -Wa,-l -m68060 -Wa,-m68030
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CFLAGS= ${COPTIM} ${INCPATH} ${DEFS} -Wall #-Wstrict-prototypes
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.c.o:
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${CC} ${CFLAGS} -S $< -o $*.s
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${TXLT} < $*.s | ${AS} ${AFLAGS} -o $*.o
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rm $*.s
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.s.o: ; ${CC} ${CAFLAGS} ${COPTS} -x assembler-with-cpp -o $@ -c $<
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.S.o: ; ${CC} ${CAFLAGS} ${COPTS} -x assembler-with-cpp -o $@ -c $<
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CLEANFILES += xxppcboot fdppcboot x.out f.out xxstart.o fdstart.o libboot.a
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xxppcboot: x.out
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${AOUT2BB} x.out $@ || nm -u x.out
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fdppcboot: f.out
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${AOUT2BB} f.out $@ || nm -u f.out
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x.out: xxstart.o libboot.a
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${LD} ${LDFLAGS} -r -dc -e _start -o $@ $>
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size $@
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nm -u $@
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f.out: fdstart.o libboot.a
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${LD} ${LDFLAGS} -r -dc -e _start -o $@ $>
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size $@
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nm -u $@
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xxstart.o: ${DIR_BOOT}/bbstart.s
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${CC} ${CAFLAGS} ${COPTS} -x assembler-with-cpp \
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-o $@ -c $>
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fdstart.o: ${DIR_BOOT}/bbstart.s
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${CC} -DAUTOLOAD=8192 ${CAFLAGS} ${COPTS} -x assembler-with-cpp \
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-o $@ -c $>
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PPCCC=powerpc-netbsd-gcc
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PPCAS=powerpc-netbsd-as
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PPCLD=powerpc-netbsd-ld
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PPCOD=powerpc-netbsd-objdump
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CLEANFILES += kickstart.o kickstart.bin kickstart68.c
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ppcstart.o: kickstart68.c
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kickstart68.c: kickstart.bin hex2c.awk
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hexdump kickstart.bin | awk -f ${.CURDIR}/hex2c.awk > $@
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kickstart.bin: kickstart.o
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$(PPCLD) -Ttext=0xfff00100 -o$@ --oformat binary $?
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kickstart.o: kickstart.S
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$(PPCCC) -DDEBUG $(COPTS) -x assembler-with-cpp -c $?
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kickstart.lis: kickstart.o
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$(PPCOD) --disassemble-all kickstart.o
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libboot.a: ${OBJS}
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${AR} r $@ $> && ${RANLIB} $@
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# make sure these are built:
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${COBJS}: ${TXLT}
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${FILES}: ${AOUT2BB}
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@ -0,0 +1,8 @@
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# Copyright 1998 Ignatios Souvatzis. All rights reserved.
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BEGIN{print "/* Generated by a script --- do not edit */"}
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BEGIN{print "#include <sys/types.h>"}
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BEGIN{print "const u_int16_t kickstart[] = {"}
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BEGIN{size = 0}
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{ printf("\t"); for(i=2;i<=NF;i++) {printf("0x%s, ",$i);size += 2};printf("\n");}
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END{printf("\t0};\n");}
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END{print "const size_t kicksize = ", size ";"}
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@ -0,0 +1,96 @@
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/* $NetBSD: kickstart.S,v 1.1 1999/11/28 22:10:48 is Exp $ */
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/*
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* Copyright (C) 1998 Ignatios Souvatzis. All rights reserved.
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*/
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#define PPC_CACHESIZE 16384
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#define PPC_LINESIZE 32
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/*
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Memst: .long 0x08000000
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Krnst: .long 0x082f3400
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Krnsz: .long 0x00100000
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*/
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.globl _start
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_start:
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bl L2 /* we start with this address @ 0xfff00100 */
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L2:
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lis 13,0xf60000@ha
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li 14,0x08
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stb 14,0xf60000@l(13)
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#ifdef DEBUG
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lis 13,0xdff180@h
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ori 13,13,0xdff180@l
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lis 12,1000000@h
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ori 12,12,1000000@l
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mtctr 12
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L2a:
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li 14,0x00f
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sth 14,0(13)
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sync
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li 14,0xf0f
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sth 14,0(13)
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sync
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bdnz L2a
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#endif
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mflr 3
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lwz 4,-16(3)
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lwz 5,-12(3)
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lwz 6,-8(3)
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li 7,3
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addi 8,6,3
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cmplw 4,5
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andc 8,8,7
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srwi 9,8,2
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mtctr 9
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bgt Lb0
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/* here: copying downwards and forwards */
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lwz 9,0(5)
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stw 9,0(4)
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bdz Lflush
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Lf1: lwzu 7,4(5)
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stwu 7,4(4)
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bdnz Lf1
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b Lflush
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Lb0: add 4,4,8 /* add the rounded up length */
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add 5,5,8 /* add the rounded up length */
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Lb1: lwzu 7,-4(5)
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stwu 7,-4(4)
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bdnz Lb1
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Lflush:
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#ifdef DEBUG
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li 14,0xff0
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sth 14,0(13)
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sync
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#endif
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li 10,PPC_CACHESIZE/PPC_LINESIZE
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li 11,PPC_LINESIZE
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/* dcbst loop */
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mtctr 10
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lwz 12,-8(3)
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Lfl1: dcbst 0,12
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add 12,12,11
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bdnz Lfl1
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sync /* and wait for past instructions to finish */
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/* icbi loop */
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mtctr 10
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lwz 12,-8(3)
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Lfl2: icbi 0,12
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add 12,12,11
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bdnz Lfl2
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sync /* and wait for past instructions to finish */
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isync /* and flush instruction queue */
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Ljump:
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#ifdef DEBUG
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li 14,0x0f0
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sth 14,0(13)
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sync
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#endif
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lwz 3,-16(3)
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mtlr 3
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blr
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/* NOTREACHED */
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@ -0,0 +1,46 @@
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/* $NetBSD: ppcstart.c,v 1.1 1999/11/28 22:10:48 is Exp $ */
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/*
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* Copyright 1999 Ignatios Souvatzis. All rights reserved.
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*/
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/*
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* Startit for Phase5 PPC boards.
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*/
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#include <sys/types.h>
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#include "libstubs.h"
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#include "kickstart68.c"
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void
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startit(kp, ksize, entry, fmem, fmemsz, cmemsz,
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boothowto, esym, cpuid, eclock, amiga_flags, I_flag,
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bootpartoff, history)
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u_long kp, ksize, entry, fmem, fmemsz, cmemsz,
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boothowto, esym, cpuid, eclock, amiga_flags, I_flag,
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bootpartoff, history;
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{
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int i;
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#define ONESEC
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/* #define ONESEC for (i=0; i<1000000; i++) */
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ONESEC *(volatile u_int16_t *)0xdff180 = 0x0f0;
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*(volatile u_int8_t *)0xf60000 = 0x10;
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ONESEC *(volatile u_int16_t *)0xdff180 = 0xf80;
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memcpy((caddr_t)0xfff00100, kickstart, kicksize);
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*(volatile u_int32_t *)0xfff000f4 = fmem;
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*(volatile u_int32_t *)0xfff000f8 = kp;
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*(volatile u_int32_t *)0xfff000fc = ksize;
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ONESEC *(volatile u_int16_t *)0xdff180 = 0xf00;
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*(volatile u_int8_t *)0xf60000 = 0x90;
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*(volatile u_int8_t *)0xf60000 = 0x08;
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/* NOTREACHED */
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while (1) {
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*(volatile u_int16_t *)0xdff180 = 0x0f0;
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*(volatile u_int16_t *)0xdff180 = 0x00f;
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}
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}
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