* Re: [PATCH] Fix 8250 probe on ppc32
From: Benjamin Herrenschmidt @ 2005-11-18 21:36 UTC (permalink / raw)
To: Kumar Gala; +Cc: linuxppc-dev list, David Woodhouse, Tom Rini
In-Reply-To: <5534EC32-EE72-4019-A5D9-305F8348E4D9@kernel.crashing.org>
> How early on can we use udbg? I'd be interested to see how this is
> going to work out for 4xx/83xx/85xx w/built-in 8250's.
As soon as you can get something mapped I suppose... On ppc32 with
BootX, I setup a BAT in head.S, thus udbg is available in
machine_init(). On ppc64 with hypervisor console, we can enable hacks
that initialize udbg in real mode.
Ben.
^ permalink raw reply
* Re: [PATCH] Fix 8250 probe on ppc32
From: David Woodhouse @ 2005-11-18 21:39 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: linuxppc-dev list, Tom Rini
In-Reply-To: <1132349794.20016.94.camel@gaston>
On Sat, 2005-11-19 at 08:36 +1100, Benjamin Herrenschmidt wrote:
> As soon as you can get something mapped I suppose... On ppc32 with
> BootX, I setup a BAT in head.S, thus udbg is available in
> machine_init(). On ppc64 with hypervisor console, we can enable hacks
> that initialize udbg in real mode.
About the same time as you can first call register_console() with it
then.
I always used to call serial8250_console_init() from the beginning of
setup_arch() if I wanted that kind of thing.
--
dwmw2
^ permalink raw reply
* Re: [PATCH] generate COFF zImage in arch/powerpc/boot
From: Olaf Hering @ 2005-11-18 22:13 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <20051118075158.GB14865@suse.de>
On Fri, Nov 18, Olaf Hering wrote:
> On Fri, Nov 18, Paul Mackeras wrote:
>
>
> > +++ merge-hack/arch/powerpc/boot/zImage.lds 2005-11-16 23:16:48.000000000 +1100
>
> This change makes arch/powerpc/boot/README obsolete.
> Last time I looked, the COFF loader liked only .text, .data and .bss.
> But maybe hack-coff needs some tweaking to modify also other sections.
I tried to keep the kernel in its own section. But the firmware does not
fully setup the memory range for that section. claim and map calls for
that area are not enough.
So we either need a ld script for coff with kernel and initrd in the
.data section. Or we write a tool to extract the vmlinux.gz and initrd
based on nm or readelf -a output.
--
short story of a lazy sysadmin:
alias appserv=wotan
^ permalink raw reply
* Re: [PATCH] ppc boot: replace string labels with numbers
From: Olaf Hering @ 2005-11-18 22:19 UTC (permalink / raw)
To: Hollis Blanchard; +Cc: linuxppc-dev
In-Reply-To: <322e5a1c14e0e7a08d88868f23ec7c73@penguinppc.org>
On Fri, Nov 18, Hollis Blanchard wrote:
> >The code should be obvious.
>
> I hope the above was a joke, Olaf.
Not really. Perhaps I have been working on that code for too long now.
Its the string table that makes a difference.
--
short story of a lazy sysadmin:
alias appserv=wotan
^ permalink raw reply
* Re: [PATCH] generate COFF zImage in arch/powerpc/boot
From: Olaf Hering @ 2005-11-18 23:16 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <20051118221309.GA12724@suse.de>
On Fri, Nov 18, Olaf Hering wrote:
> On Fri, Nov 18, Olaf Hering wrote:
>
> > On Fri, Nov 18, Paul Mackeras wrote:
> >
> >
> > > +++ merge-hack/arch/powerpc/boot/zImage.lds 2005-11-16 23:16:48.000000000 +1100
> >
> > This change makes arch/powerpc/boot/README obsolete.
> > Last time I looked, the COFF loader liked only .text, .data and .bss.
> > But maybe hack-coff needs some tweaking to modify also other sections.
>
> I tried to keep the kernel in its own section. But the firmware does not
> fully setup the memory range for that section. claim and map calls for
> that area are not enough.
After using your new version of claim, I found that the section is not
copied. It contains only sequences of ff0fffff fff0ff0f.
--
short story of a lazy sysadmin:
alias appserv=wotan
^ permalink raw reply
* Re: Help ! 2.6.14 kernel can't bring up
From: David H. Lynch Jr. @ 2005-11-18 23:14 UTC (permalink / raw)
To: linuxppc-embedded
In-Reply-To: <20051118024803.E2988687A1@ozlabs.org>
zjznliang wrote:
> Hi linuxppc-embedded！
>
> Hi , How to config the "early printk" in 2.6.14 linux configration???
>
>
>
Console and debugging I/O is available at all stages of The Linux
loading process - If the drivers for your board support it.
There is nearly free support for 8250 like serial ports, in virtually
all boards. Support for other debugging IO devices is fairly simple to
setup.
I used the arch/ppc/syslib/mv64x60_dbg.c and
arch/ppc/boot/simple/mv64x60_tty.c as templates to create trivial
drivers for debugging IO
on hardware that had no relation to a UART.
I think "early printk" refers to the early serial driver that can be
used after the kernel has uncompressed itself and relocated itself and
switched to
a virtual environment. For 8250 like serial ports that can enabled in
the linux .config file setup by make menuconfig or whatever variant of
make xxconfig
you prefer. For non-8250 like uarts you will again have to write an
early serial driver. All the early debug IO drivers are trivial - little
more is needed than
an implementation of putc, as opposed to the full conolse support
required for a tty on a booted system.
^ permalink raw reply
* Re: Platform device model drawback
From: Greg KH @ 2005-11-18 23:47 UTC (permalink / raw)
To: Grant Likely; +Cc: Kumar Gala, linuxppc-embedded list
In-Reply-To: <528646bc0511171546s4095b3ebgb71cd13880480d1b@mail.gmail.com>
On Thu, Nov 17, 2005 at 04:46:17PM -0700, Grant Likely wrote:
> On 11/15/05, Greg KH <greg@kroah.com> wrote:
> > On Tue, Nov 15, 2005 at 01:34:47PM -0600, Kumar Gala wrote:
> > > This is where the confusion is. We have two instances of device A. We
> > > want instance 1 of device A bound to driver "enet" and instance 2 of
> > > device A bound to "serial".
> >
> > That's different from what was described earlier :)
> >
> > In this case, you need two different struct devices.
> Which is what we have.
>
> >
> > > Today both instances are called "deviceA". However we can't register two
> > > different drivers as "deviceA".
> >
> > Nor would you want to.
> >
> > > Not sure if that clarifies the issue any.
> >
> > A bit. I think it still sounds messy...
> Does this help? (We also discussed this a bit at the PPC BoF at OLS this year)
>
> For example on the mpc52xx (see arch/ppc/syslib/mpc52xx_devices.c);
> - 6 PSC devices on chip;
> - (struct platform_device) for each device has: .name='mpc52xx-psc';
> - However, SCC1 may be driven by the Ethernet driver but PSC2 and
> PSC6 may be serial
> - problem then is: How do you get only PSC1 bound to the
> psc-ethernet driver and only PSC2 & PSC6 bound to the serial driver?
I really do not know, sorry.
>
> Possible solution; Modify the naming scheme slightly from what is
> currently used.
> 1. Make the Ethernet driver register the name "mpc52xx-psc:eth"
> 2. Make the serial driver register the name "mpc52xx-psc:uart"
> 3. In the board-specific platform code, modify the .name field in
> struct platform_device *before* the device is registered with the
> platform device. (possibly by extending ppc_sys_device_fixup callback)
> - The board specific code would set PSC1 to "mpc52xx-psc:eth",
> PSC2&6 to "mpc52xx-psc:uart". PSC3-5 would stick with "mpc52xx-psc"
> and so would not get bound to anything.
>
> Q: Can the .name field be modified *after* platform_device is
> registered w/ the platform bus?
No, it can not, sorry.
Good luck,
greg k-h
^ permalink raw reply
* Re: Platform device model drawback
From: Grant Likely @ 2005-11-19 2:37 UTC (permalink / raw)
To: Greg KH; +Cc: Kumar Gala, linuxppc-embedded list
In-Reply-To: <20051118234711.GB26118@kroah.com>
On 11/18/05, Greg KH <greg@kroah.com> wrote:
> On Thu, Nov 17, 2005 at 04:46:17PM -0700, Grant Likely wrote:
> > Does this help? (We also discussed this a bit at the PPC BoF at OLS th=
is year)
> >
> > For example on the mpc52xx (see arch/ppc/syslib/mpc52xx_devices.c);
> > - 6 PSC devices on chip;
> > - (struct platform_device) for each device has: .name=3D'mpc52xx-psc=
';
> > - However, SCC1 may be driven by the Ethernet driver but PSC2 and
> > PSC6 may be serial
> > - problem then is: How do you get only PSC1 bound to the
> > psc-ethernet driver and only PSC2 & PSC6 bound to the serial driver?
>
> I really do not know, sorry.
>
> >
> > Possible solution; Modify the naming scheme slightly from what is
> > currently used.
> > 1. Make the Ethernet driver register the name "mpc52xx-psc:eth"
> > 2. Make the serial driver register the name "mpc52xx-psc:uart"
> > 3. In the board-specific platform code, modify the .name field in
> > struct platform_device *before* the device is registered with the
> > platform device. (possibly by extending ppc_sys_device_fixup callback)
> > - The board specific code would set PSC1 to "mpc52xx-psc:eth",
> > PSC2&6 to "mpc52xx-psc:uart". PSC3-5 would stick with "mpc52xx-psc"
> > and so would not get bound to anything.
Ignoring the question below, do you see any problem with the above solution=
?
> >
> > Q: Can the .name field be modified *after* platform_device is
> > registered w/ the platform bus?
>
> No, it can not, sorry.
Not a big deal, that question was a bit of an aside. If the name
could be changed, then the device function could change at runtime by
unbinding one function driver, changing the name and rebind
another.... But now that I think about it for more that 2ms, a
solution to this would be to just unregister, change .name, and
reregister the struct platform_device.
g.
^ permalink raw reply
* Re: [PATCH] generate COFF zImage in arch/powerpc/boot
From: Paul Mackerras @ 2005-11-19 3:45 UTC (permalink / raw)
To: Olaf Hering; +Cc: linuxppc-dev
In-Reply-To: <20051118221309.GA12724@suse.de>
Olaf Hering writes:
> So we either need a ld script for coff with kernel and initrd in the
> .data section. Or we write a tool to extract the vmlinux.gz and initrd
> based on nm or readelf -a output.
Here's a new version that does the first of those...
The zImage base address could go back to 4MB now. In fact one could
argue that if OF is based at 12MB and load-base is near zero, linking
it at 6MB would be best.
There is still something I haven't got right: if you do make -j3, it
does this sort of thing:
STRIP vmlinux.strip
STRIP vmlinux.strip
GZIP arch/powerpc/boot/kernel-vmlinux.strip.gz
GZIP arch/powerpc/boot/kernel-vmlinux.strip.gz
BOOTCC arch/powerpc/boot/kernel-vmlinux.strip.o
BOOTCC arch/powerpc/boot/kernel-vmlinux.strip.o
mv: cannot stat `arch/powerpc/boot/.kernel-vmlinux.strip.o.tmp': No such file or directory
make[2]: *** [arch/powerpc/boot/kernel-vmlinux.strip.o] Error 1
make[1]: *** [zImage] Error 2
I have no idea why it tries to make those things twice in parallel.
It doesn't do that for vmlinux.
Paul.
diff -urN powerpc/arch/powerpc/Makefile merge-hack/arch/powerpc/Makefile
--- powerpc/arch/powerpc/Makefile 2005-11-18 17:19:11.000000000 +1100
+++ merge-hack/arch/powerpc/Makefile 2005-11-18 17:20:06.000000000 +1100
@@ -138,7 +138,7 @@
drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
-defaultimage-$(CONFIG_PPC32) := zImage
+defaultimage-$(CONFIG_PPC32) := zImage zImage.coff
defaultimage-$(CONFIG_PPC_ISERIES) := vmlinux
defaultimage-$(CONFIG_PPC_PSERIES) := zImage
KBUILD_IMAGE := $(defaultimage-y)
@@ -149,7 +149,8 @@
# All the instructions talk about "make bzImage".
bzImage: zImage
-BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
+BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm \
+ zImage.vmode zImage.initrd.vmode zImage.coff zImage.initrd.coff
.PHONY: $(BOOT_TARGETS)
diff -urN powerpc/arch/powerpc/boot/Makefile merge-hack/arch/powerpc/boot/Makefile
--- powerpc/arch/powerpc/boot/Makefile 2005-11-16 15:55:17.000000000 +1100
+++ merge-hack/arch/powerpc/boot/Makefile 2005-11-19 14:18:04.000000000 +1100
@@ -25,8 +25,8 @@
BOOTCFLAGS := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \
$(shell $(CROSS32CC) -print-file-name=include) -fPIC
BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
-BOOTLFLAGS := -T $(srctree)/$(src)/zImage.lds
OBJCOPYFLAGS := contents,alloc,load,readonly,data
+OBJCOPY_COFF_ARGS := -O aixcoff-rs6000 --set-start 0x500000
zlib := infblock.c infcodes.c inffast.c inflate.c inftrees.c infutil.c
zlibheader := infblock.h infcodes.h inffast.h inftrees.h infutil.h
@@ -35,7 +35,7 @@
$(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
#$(addprefix $(obj)/,main.o): $(addprefix $(obj)/,zlib.h)
-src-boot := string.S prom.c main.c div64.S crt0.S
+src-boot := crt0.S string.S prom.c stdio.c main.c div64.S
src-boot += $(zlib)
src-boot := $(addprefix $(obj)/, $(src-boot))
obj-boot := $(addsuffix .o, $(basename $(src-boot)))
@@ -70,7 +70,7 @@
cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
quiet_cmd_bootld = BOOTLD $@
- cmd_bootld = $(CROSS32LD) $(BOOTLFLAGS) -o $@ $(2)
+ cmd_bootld = $(CROSS32LD) -T $(srctree)/$(src)/$(3) -o $@ $(2)
$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c
$(call if_changed_dep,bootcc)
@@ -87,12 +87,13 @@
src-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.c, $(section)))
gz-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.gz, $(section)))
-hostprogs-y := addnote addRamDisk
-targets += zImage.vmode zImage.initrd.vmode zImage zImage.initrd \
- $(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
- $(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
- $(patsubst $(obj)/%,%, $(call gz-sec, $(required) $(initrd))) \
- vmlinux.initrd
+hostprogs-y := addnote addRamDisk hack-coff
+
+targets += zImage.vmode zImage.initrd.vmode zImage zImage.initrd \
+ $(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
+ $(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
+ $(patsubst $(obj)/%,%, $(call gz-sec, $(required) $(initrd))) \
+ vmlinux.initrd
extra-y := initrd.o
quiet_cmd_ramdisk = RAMDISK $@
@@ -114,6 +115,10 @@
quiet_cmd_addnote = ADDNOTE $@
cmd_addnote = $(obj)/addnote $@
+quiet_cmd_gencoff = COFF $@
+ cmd_gencoff = $(OBJCOPY) $(OBJCOPY_COFF_ARGS) $@ && \
+ $(obj)/hack-coff $@
+
$(call gz-sec, $(required)): $(obj)/kernel-%.gz: %
$(call if_changed,gzip)
@@ -127,13 +132,13 @@
$(call if_changed_dep,bootcc)
$(call cmd,addsection)
-$(obj)/zImage.vmode: obj-boot += $(call obj-sec, $(required))
+$(obj)/zImage.vmode $(obj)/zImage.coff: obj-boot += $(call obj-sec, $(required))
$(obj)/zImage.vmode: $(call obj-sec, $(required)) $(obj-boot) $(srctree)/$(src)/zImage.lds
- $(call cmd,bootld,$(obj-boot))
+ $(call cmd,bootld,$(obj-boot),zImage.lds)
-$(obj)/zImage.initrd.vmode: obj-boot += $(call obj-sec, $(required) $(initrd))
+$(obj)/zImage.initrd.vmode $(obj)/zImage.initrd.coff: obj-boot += $(call obj-sec, $(required) $(initrd))
$(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(srctree)/$(src)/zImage.lds
- $(call cmd,bootld,$(obj-boot))
+ $(call cmd,bootld,$(obj-boot),zImage.lds)
$(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote
@cp -f $< $@
@@ -143,6 +148,15 @@
@cp -f $< $@
$(call if_changed,addnote)
+$(obj)/zImage.coff: $(call obj-sec, $(required)) $(obj-boot) $(srctree)/$(src)/zImage.coff.lds $(obj)/hack-coff
+ $(call cmd,bootld,$(obj-boot),zImage.coff.lds)
+ $(call cmd,gencoff)
+
+$(obj)/zImage.initrd.coff: $(call obj-sec, $(required) $(initrd)) $(obj-boot) \
+ $(srctree)/$(src)/zImage.coff.lds $(obj)/hack-coff
+ $(call cmd,bootld,$(obj-boot),zImage.coff.lds)
+ $(call cmd,gencoff)
+
install: $(CONFIGURE) $(BOOTIMAGE)
sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" "$(BOOTIMAGE)"
diff -urN powerpc/arch/powerpc/boot/crt0.S merge-hack/arch/powerpc/boot/crt0.S
--- powerpc/arch/powerpc/boot/crt0.S 2005-11-18 15:57:30.000000000 +1100
+++ merge-hack/arch/powerpc/boot/crt0.S 2005-11-18 22:07:18.000000000 +1100
@@ -12,17 +12,23 @@
#include "ppc_asm.h"
.text
+ /* a procedure descriptor used when booting this as a COFF file */
+_zimage_start_opd:
+ .long _zimage_start, 0, 0, 0
+
.globl _zimage_start
_zimage_start:
+ /* Work out the offset between the address we were linked at
+ and the address where we're running. */
bl 1f
-
-1:
- mflr r0
+1: mflr r0
lis r9,1b@ha
addi r9,r9,1b@l
subf. r0,r9,r0
- beq 3f
+ beq 3f /* if running at same address as linked */
+ /* The .got2 section contains a list of addresses, so add
+ the address offset onto each entry. */
lis r9,__got2_start@ha
addi r9,r9,__got2_start@l
lis r8,__got2_end@ha
@@ -32,15 +38,14 @@
srwi. r8,r8,2
mtctr r8
add r9,r0,r9
-2:
- lwz r8,0(r9)
+2: lwz r8,0(r9)
add r8,r8,r0
stw r8,0(r9)
addi r9,r9,4
bdnz 2b
-3:
- lis r9,_start@h
+ /* Do a cache flush for our text, in case OF didn't */
+3: lis r9,_start@h
add r9,r0,r9
lis r8,_etext@ha
addi r8,r8,_etext@l
diff -urN powerpc/arch/powerpc/boot/hack-coff.c merge-hack/arch/powerpc/boot/hack-coff.c
--- /dev/null 2005-11-19 12:36:29.626282000 +1100
+++ merge-hack/arch/powerpc/boot/hack-coff.c 2005-11-17 14:57:08.000000000 +1100
@@ -0,0 +1,84 @@
+/*
+ * hack-coff.c - hack the header of an xcoff file to fill in
+ * a few fields needed by the Open Firmware xcoff loader on
+ * Power Macs but not initialized by objcopy.
+ *
+ * Copyright (C) Paul Mackerras 1997.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include "rs6000.h"
+
+#define AOUT_MAGIC 0x010b
+
+#define get_16be(x) ((((unsigned char *)(x))[0] << 8) \
+ + ((unsigned char *)(x))[1])
+#define put_16be(x, v) (((unsigned char *)(x))[0] = (v) >> 8, \
+ ((unsigned char *)(x))[1] = (v) & 0xff)
+#define get_32be(x) ((((unsigned char *)(x))[0] << 24) \
+ + (((unsigned char *)(x))[1] << 16) \
+ + (((unsigned char *)(x))[2] << 8) \
+ + ((unsigned char *)(x))[3])
+
+int
+main(int ac, char **av)
+{
+ int fd;
+ int i, nsect;
+ int aoutsz;
+ struct external_filehdr fhdr;
+ AOUTHDR aout;
+ struct external_scnhdr shdr;
+
+ if (ac != 2) {
+ fprintf(stderr, "Usage: hack-coff coff-file\n");
+ exit(1);
+ }
+ if ((fd = open(av[1], 2)) == -1) {
+ perror(av[2]);
+ exit(1);
+ }
+ if (read(fd, &fhdr, sizeof(fhdr)) != sizeof(fhdr))
+ goto readerr;
+ i = get_16be(fhdr.f_magic);
+ if (i != U802TOCMAGIC && i != U802WRMAGIC && i != U802ROMAGIC) {
+ fprintf(stderr, "%s: not an xcoff file\n", av[1]);
+ exit(1);
+ }
+ aoutsz = get_16be(fhdr.f_opthdr);
+ if (read(fd, &aout, aoutsz) != aoutsz)
+ goto readerr;
+ nsect = get_16be(fhdr.f_nscns);
+ for (i = 0; i < nsect; ++i) {
+ if (read(fd, &shdr, sizeof(shdr)) != sizeof(shdr))
+ goto readerr;
+ if (strcmp(shdr.s_name, ".text") == 0) {
+ put_16be(aout.o_snentry, i+1);
+ put_16be(aout.o_sntext, i+1);
+ } else if (strcmp(shdr.s_name, ".data") == 0) {
+ put_16be(aout.o_sndata, i+1);
+ } else if (strcmp(shdr.s_name, ".bss") == 0) {
+ put_16be(aout.o_snbss, i+1);
+ }
+ }
+ put_16be(aout.magic, AOUT_MAGIC);
+ if (lseek(fd, (long) sizeof(struct external_filehdr), 0) == -1
+ || write(fd, &aout, aoutsz) != aoutsz) {
+ fprintf(stderr, "%s: write error\n", av[1]);
+ exit(1);
+ }
+ close(fd);
+ exit(0);
+
+readerr:
+ fprintf(stderr, "%s: read error or file too short\n", av[1]);
+ exit(1);
+}
diff -urN powerpc/arch/powerpc/boot/main.c merge-hack/arch/powerpc/boot/main.c
--- powerpc/arch/powerpc/boot/main.c 2005-11-16 15:55:17.000000000 +1100
+++ merge-hack/arch/powerpc/boot/main.c 2005-11-17 14:41:13.000000000 +1100
@@ -21,8 +21,8 @@
/* Value picked to match that used by yaboot */
-#define PROG_START 0x01400000
-#define RAM_END (512<<20) // Fixme: use OF */
+#define PROG_START 0x01400000 /* only used on 64-bit systems */
+#define RAM_END (512<<20) /* Fixme: use OF */
#define ONE_MB 0x100000
extern char _start[];
@@ -160,6 +160,17 @@
elfoffset = (unsigned long)elf64ph->p_offset;
vmlinux.size = (unsigned long)elf64ph->p_filesz + elfoffset;
vmlinux.memsize = (unsigned long)elf64ph->p_memsz + elfoffset;
+
+#if defined(PROG_START)
+ /*
+ * Maintain a "magic" minimum address. This keeps some older
+ * firmware platforms running.
+ */
+
+ if (claim_base < PROG_START)
+ claim_base = PROG_START;
+#endif
+
return 1;
}
@@ -206,12 +217,18 @@
exit();
if (getprop(chosen_handle, "stdout", &stdout, sizeof(stdout)) != 4)
exit();
- stderr = stdout;
- if (getprop(chosen_handle, "stdin", &stdin, sizeof(stdin)) != 4)
- exit();
printf("\n\rzImage starting: loaded at 0x%p (sp: 0x%p)\n\r", _start, sp);
+ /*
+ * The first available claim_base must be above the end of the
+ * the loaded kernel wrapper file (_start to _end includes the
+ * initrd image if it is present) and rounded up to a nice
+ * 1 MB boundary for good measure.
+ */
+
+ claim_base = _ALIGN_UP((unsigned long)_end, ONE_MB);
+
vmlinuz.addr = (unsigned long)_vmlinux_start;
vmlinuz.size = (unsigned long)(_vmlinux_end - _vmlinux_start);
@@ -228,25 +245,6 @@
exit();
}
- /*
- * The first available claim_base must be above the end of the
- * the loaded kernel wrapper file (_start to _end includes the
- * initrd image if it is present) and rounded up to a nice
- * 1 MB boundary for good measure.
- */
-
- claim_base = _ALIGN_UP((unsigned long)_end, ONE_MB);
-
-#if defined(PROG_START)
- /*
- * Maintain a "magic" minimum address. This keeps some older
- * firmware platforms running.
- */
-
- if (claim_base < PROG_START)
- claim_base = PROG_START;
-#endif
-
/* We need to claim the memsize plus the file offset since gzip
* will expand the header (file offset), then the kernel, then
* possible rubbish we don't care about. But the kernel bss must
diff -urN powerpc/arch/powerpc/boot/prom.c merge-hack/arch/powerpc/boot/prom.c
--- powerpc/arch/powerpc/boot/prom.c 2005-11-16 15:55:17.000000000 +1100
+++ merge-hack/arch/powerpc/boot/prom.c 2005-11-17 14:37:12.000000000 +1100
@@ -13,487 +13,153 @@
#include "prom.h"
int (*prom)(void *);
+phandle chosen_handle;
+ihandle stdout;
-void *chosen_handle;
-
-void *stdin;
-void *stdout;
-void *stderr;
-
-
-int
-write(void *handle, void *ptr, int nb)
-{
- struct prom_args {
- char *service;
- int nargs;
- int nret;
- void *ihandle;
- void *addr;
- int len;
- int actual;
- } args;
-
- args.service = "write";
- args.nargs = 3;
- args.nret = 1;
- args.ihandle = handle;
- args.addr = ptr;
- args.len = nb;
- args.actual = -1;
- (*prom)(&args);
- return args.actual;
-}
-
-int
-read(void *handle, void *ptr, int nb)
+int call_prom(const char *service, int nargs, int nret, ...)
{
+ int i;
struct prom_args {
- char *service;
+ const char *service;
int nargs;
int nret;
- void *ihandle;
- void *addr;
- int len;
- int actual;
+ unsigned int args[12];
} args;
+ va_list list;
- args.service = "read";
- args.nargs = 3;
- args.nret = 1;
- args.ihandle = handle;
- args.addr = ptr;
- args.len = nb;
- args.actual = -1;
- (*prom)(&args);
- return args.actual;
-}
+ args.service = service;
+ args.nargs = nargs;
+ args.nret = nret;
-void
-exit()
-{
- struct prom_args {
- char *service;
- } args;
+ va_start(list, nret);
+ for (i = 0; i < nargs; i++)
+ args.args[i] = va_arg(list, unsigned int);
+ va_end(list);
- for (;;) {
- args.service = "exit";
- (*prom)(&args);
- }
-}
+ for (i = 0; i < nret; i++)
+ args.args[nargs+i] = 0;
-void
-pause(void)
-{
- struct prom_args {
- char *service;
- } args;
-
- args.service = "enter";
- (*prom)(&args);
-}
-
-void *
-finddevice(const char *name)
-{
- struct prom_args {
- char *service;
- int nargs;
- int nret;
- const char *devspec;
- void *phandle;
- } args;
-
- args.service = "finddevice";
- args.nargs = 1;
- args.nret = 1;
- args.devspec = name;
- args.phandle = (void *) -1;
- (*prom)(&args);
- return args.phandle;
-}
-
-void *
-claim(unsigned long virt, unsigned long size, unsigned long align)
-{
- struct prom_args {
- char *service;
- int nargs;
- int nret;
- unsigned int virt;
- unsigned int size;
- unsigned int align;
- void *ret;
- } args;
+ if (prom(&args) < 0)
+ return -1;
- args.service = "claim";
- args.nargs = 3;
- args.nret = 1;
- args.virt = virt;
- args.size = size;
- args.align = align;
- (*prom)(&args);
- return args.ret;
+ return (nret > 0)? args.args[nargs]: 0;
}
-int
-getprop(void *phandle, const char *name, void *buf, int buflen)
+int call_prom_ret(const char *service, int nargs, int nret,
+ unsigned int *rets, ...)
{
+ int i;
struct prom_args {
- char *service;
+ const char *service;
int nargs;
int nret;
- void *phandle;
- const char *name;
- void *buf;
- int buflen;
- int size;
+ unsigned int args[12];
} args;
+ va_list list;
- args.service = "getprop";
- args.nargs = 4;
- args.nret = 1;
- args.phandle = phandle;
- args.name = name;
- args.buf = buf;
- args.buflen = buflen;
- args.size = -1;
- (*prom)(&args);
- return args.size;
-}
+ args.service = service;
+ args.nargs = nargs;
+ args.nret = nret;
-int
-putc(int c, void *f)
-{
- char ch = c;
+ va_start(list, rets);
+ for (i = 0; i < nargs; i++)
+ args.args[i] = va_arg(list, unsigned int);
+ va_end(list);
- if (c == '\n')
- putc('\r', f);
- return write(f, &ch, 1) == 1? c: -1;
-}
+ for (i = 0; i < nret; i++)
+ args.args[nargs+i] = 0;
-int
-putchar(int c)
-{
- return putc(c, stdout);
-}
+ if (prom(&args) < 0)
+ return -1;
-int
-fputs(char *str, void *f)
-{
- int n = strlen(str);
+ if (rets != (void *) 0)
+ for (i = 1; i < nret; ++i)
+ rets[i-1] = args.args[nargs+i];
- return write(f, str, n) == n? 0: -1;
+ return (nret > 0)? args.args[nargs]: 0;
}
-size_t strnlen(const char * s, size_t count)
+int write(void *handle, void *ptr, int nb)
{
- const char *sc;
-
- for (sc = s; count-- && *sc != '\0'; ++sc)
- /* nothing */;
- return sc - s;
+ return call_prom("write", 3, 1, handle, ptr, nb);
}
-extern unsigned int __div64_32(unsigned long long *dividend,
- unsigned int divisor);
-
-/* The unnecessary pointer compare is there
- * to check for type safety (n must be 64bit)
+/*
+ * Older OF's require that when claiming a specific range of addresses,
+ * we claim the physical space in the /memory node and the virtual
+ * space in the chosen mmu node, and then do a map operation to
+ * map virtual to physical.
*/
-# define do_div(n,base) ({ \
- unsigned int __base = (base); \
- unsigned int __rem; \
- (void)(((typeof((n)) *)0) == ((unsigned long long *)0)); \
- if (((n) >> 32) == 0) { \
- __rem = (unsigned int)(n) % __base; \
- (n) = (unsigned int)(n) / __base; \
- } else \
- __rem = __div64_32(&(n), __base); \
- __rem; \
- })
+static int need_map = -1;
+static ihandle chosen_mmu;
+static phandle memory;
-static int skip_atoi(const char **s)
+/* returns true if s2 is a prefix of s1 */
+static int string_match(const char *s1, const char *s2)
{
- int i, c;
-
- for (i = 0; '0' <= (c = **s) && c <= '9'; ++*s)
- i = i*10 + c - '0';
- return i;
+ for (; *s2; ++s2)
+ if (*s1++ != *s2)
+ return 0;
+ return 1;
}
-#define ZEROPAD 1 /* pad with zero */
-#define SIGN 2 /* unsigned/signed long */
-#define PLUS 4 /* show plus */
-#define SPACE 8 /* space if plus */
-#define LEFT 16 /* left justified */
-#define SPECIAL 32 /* 0x */
-#define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */
-
-static char * number(char * str, unsigned long long num, int base, int size, int precision, int type)
+static int check_of_version(void)
{
- char c,sign,tmp[66];
- const char *digits="0123456789abcdefghijklmnopqrstuvwxyz";
- int i;
+ phandle oprom, chosen;
+ char version[64];
- if (type & LARGE)
- digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
- if (type & LEFT)
- type &= ~ZEROPAD;
- if (base < 2 || base > 36)
+ oprom = finddevice("/openprom");
+ if (oprom == (phandle) -1)
+ return 0;
+ if (getprop(oprom, "model", version, sizeof(version)) <= 0)
return 0;
- c = (type & ZEROPAD) ? '0' : ' ';
- sign = 0;
- if (type & SIGN) {
- if ((signed long long)num < 0) {
- sign = '-';
- num = - (signed long long)num;
- size--;
- } else if (type & PLUS) {
- sign = '+';
- size--;
- } else if (type & SPACE) {
- sign = ' ';
- size--;
+ version[sizeof(version)-1] = 0;
+ printf("OF version = '%s'\r\n", version);
+ if (!string_match(version, "Open Firmware, 1.")
+ && !string_match(version, "FirmWorks,3."))
+ return 0;
+ chosen = finddevice("/chosen");
+ if (chosen == (phandle) -1) {
+ chosen = finddevice("/chosen@0");
+ if (chosen == (phandle) -1) {
+ printf("no chosen\n");
+ return 0;
}
}
- if (type & SPECIAL) {
- if (base == 16)
- size -= 2;
- else if (base == 8)
- size--;
- }
- i = 0;
- if (num == 0)
- tmp[i++]='0';
- else while (num != 0) {
- tmp[i++] = digits[do_div(num, base)];
+ if (getprop(chosen, "mmu", &chosen_mmu, sizeof(chosen_mmu)) <= 0) {
+ printf("no mmu\n");
+ return 0;
}
- if (i > precision)
- precision = i;
- size -= precision;
- if (!(type&(ZEROPAD+LEFT)))
- while(size-->0)
- *str++ = ' ';
- if (sign)
- *str++ = sign;
- if (type & SPECIAL) {
- if (base==8)
- *str++ = '0';
- else if (base==16) {
- *str++ = '0';
- *str++ = digits[33];
+ memory = (ihandle) call_prom("open", 1, 1, "/memory");
+ if (memory == (ihandle) -1) {
+ memory = (ihandle) call_prom("open", 1, 1, "/memory@0");
+ if (memory == (ihandle) -1) {
+ printf("no memory node\n");
+ return 0;
}
}
- if (!(type & LEFT))
- while (size-- > 0)
- *str++ = c;
- while (i < precision--)
- *str++ = '0';
- while (i-- > 0)
- *str++ = tmp[i];
- while (size-- > 0)
- *str++ = ' ';
- return str;
+ printf("old OF detected\r\n");
+ return 1;
}
-int vsprintf(char *buf, const char *fmt, va_list args)
+void *claim(unsigned long virt, unsigned long size, unsigned long align)
{
- int len;
- unsigned long long num;
- int i, base;
- char * str;
- const char *s;
-
- int flags; /* flags to number() */
-
- int field_width; /* width of output field */
- int precision; /* min. # of digits for integers; max
- number of chars for from string */
- int qualifier; /* 'h', 'l', or 'L' for integer fields */
- /* 'z' support added 23/7/1999 S.H. */
- /* 'z' changed to 'Z' --davidm 1/25/99 */
+ int ret;
+ unsigned int result;
+ if (need_map < 0)
+ need_map = check_of_version();
+ if (align || !need_map)
+ return (void *) call_prom("claim", 3, 1, virt, size, align);
- for (str=buf ; *fmt ; ++fmt) {
- if (*fmt != '%') {
- *str++ = *fmt;
- continue;
- }
-
- /* process flags */
- flags = 0;
- repeat:
- ++fmt; /* this also skips first '%' */
- switch (*fmt) {
- case '-': flags |= LEFT; goto repeat;
- case '+': flags |= PLUS; goto repeat;
- case ' ': flags |= SPACE; goto repeat;
- case '#': flags |= SPECIAL; goto repeat;
- case '0': flags |= ZEROPAD; goto repeat;
- }
-
- /* get field width */
- field_width = -1;
- if ('0' <= *fmt && *fmt <= '9')
- field_width = skip_atoi(&fmt);
- else if (*fmt == '*') {
- ++fmt;
- /* it's the next argument */
- field_width = va_arg(args, int);
- if (field_width < 0) {
- field_width = -field_width;
- flags |= LEFT;
- }
- }
-
- /* get the precision */
- precision = -1;
- if (*fmt == '.') {
- ++fmt;
- if ('0' <= *fmt && *fmt <= '9')
- precision = skip_atoi(&fmt);
- else if (*fmt == '*') {
- ++fmt;
- /* it's the next argument */
- precision = va_arg(args, int);
- }
- if (precision < 0)
- precision = 0;
- }
-
- /* get the conversion qualifier */
- qualifier = -1;
- if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || *fmt =='Z') {
- qualifier = *fmt;
- ++fmt;
- }
-
- /* default base */
- base = 10;
-
- switch (*fmt) {
- case 'c':
- if (!(flags & LEFT))
- while (--field_width > 0)
- *str++ = ' ';
- *str++ = (unsigned char) va_arg(args, int);
- while (--field_width > 0)
- *str++ = ' ';
- continue;
-
- case 's':
- s = va_arg(args, char *);
- if (!s)
- s = "<NULL>";
-
- len = strnlen(s, precision);
-
- if (!(flags & LEFT))
- while (len < field_width--)
- *str++ = ' ';
- for (i = 0; i < len; ++i)
- *str++ = *s++;
- while (len < field_width--)
- *str++ = ' ';
- continue;
-
- case 'p':
- if (field_width == -1) {
- field_width = 2*sizeof(void *);
- flags |= ZEROPAD;
- }
- str = number(str,
- (unsigned long) va_arg(args, void *), 16,
- field_width, precision, flags);
- continue;
-
-
- case 'n':
- if (qualifier == 'l') {
- long * ip = va_arg(args, long *);
- *ip = (str - buf);
- } else if (qualifier == 'Z') {
- size_t * ip = va_arg(args, size_t *);
- *ip = (str - buf);
- } else {
- int * ip = va_arg(args, int *);
- *ip = (str - buf);
- }
- continue;
-
- case '%':
- *str++ = '%';
- continue;
-
- /* integer number formats - set up the flags and "break" */
- case 'o':
- base = 8;
- break;
-
- case 'X':
- flags |= LARGE;
- case 'x':
- base = 16;
- break;
-
- case 'd':
- case 'i':
- flags |= SIGN;
- case 'u':
- break;
-
- default:
- *str++ = '%';
- if (*fmt)
- *str++ = *fmt;
- else
- --fmt;
- continue;
- }
- if (qualifier == 'l') {
- num = va_arg(args, unsigned long);
- if (flags & SIGN)
- num = (signed long) num;
- } else if (qualifier == 'Z') {
- num = va_arg(args, size_t);
- } else if (qualifier == 'h') {
- num = (unsigned short) va_arg(args, int);
- if (flags & SIGN)
- num = (signed short) num;
- } else {
- num = va_arg(args, unsigned int);
- if (flags & SIGN)
- num = (signed int) num;
- }
- str = number(str, num, base, field_width, precision, flags);
- }
- *str = '\0';
- return str-buf;
-}
-
-int sprintf(char * buf, const char *fmt, ...)
-{
- va_list args;
- int i;
-
- va_start(args, fmt);
- i=vsprintf(buf,fmt,args);
- va_end(args);
- return i;
-}
-
-static char sprint_buf[1024];
-
-int
-printf(const char *fmt, ...)
-{
- va_list args;
- int n;
-
- va_start(args, fmt);
- n = vsprintf(sprint_buf, fmt, args);
- va_end(args);
- write(stdout, sprint_buf, n);
- return n;
+ ret = call_prom_ret("call-method", 5, 2, &result, "claim", memory,
+ align, size, virt);
+ if (ret != 0 || result == -1)
+ return (void *) -1;
+ ret = call_prom_ret("call-method", 5, 2, &result, "claim", chosen_mmu,
+ align, size, virt);
+ /* 0x12 == coherent + read/write */
+ ret = call_prom("call-method", 6, 1, "map", chosen_mmu,
+ 0x12, size, virt, virt);
+ return (void *) virt;
}
diff -urN powerpc/arch/powerpc/boot/prom.h merge-hack/arch/powerpc/boot/prom.h
--- powerpc/arch/powerpc/boot/prom.h 2005-11-16 15:55:17.000000000 +1100
+++ merge-hack/arch/powerpc/boot/prom.h 2005-11-17 11:11:47.000000000 +1100
@@ -1,18 +1,34 @@
#ifndef _PPC_BOOT_PROM_H_
#define _PPC_BOOT_PROM_H_
+typedef void *phandle;
+typedef void *ihandle;
+
extern int (*prom) (void *);
-extern void *chosen_handle;
+extern phandle chosen_handle;
+extern ihandle stdout;
-extern void *stdin;
-extern void *stdout;
-extern void *stderr;
+int call_prom(const char *service, int nargs, int nret, ...);
+int call_prom_ret(const char *service, int nargs, int nret,
+ unsigned int *rets, ...);
extern int write(void *handle, void *ptr, int nb);
-extern int read(void *handle, void *ptr, int nb);
-extern void exit(void);
-extern void pause(void);
-extern void *finddevice(const char *);
-extern void *claim(unsigned long virt, unsigned long size, unsigned long align);
-extern int getprop(void *phandle, const char *name, void *buf, int buflen);
+extern void *claim(unsigned long virt, unsigned long size, unsigned long aln);
+
+static inline void exit(void)
+{
+ call_prom("exit", 0, 0);
+}
+
+static inline phandle finddevice(const char *name)
+{
+ return (phandle) call_prom("finddevice", 1, 1, name);
+}
+
+static inline int getprop(void *phandle, const char *name,
+ void *buf, int buflen)
+{
+ return call_prom("getprop", 4, 1, phandle, name, buf, buflen);
+}
+
#endif /* _PPC_BOOT_PROM_H_ */
diff -urN powerpc/arch/powerpc/boot/rs6000.h merge-hack/arch/powerpc/boot/rs6000.h
--- /dev/null 2005-11-19 12:36:29.626282000 +1100
+++ merge-hack/arch/powerpc/boot/rs6000.h 2005-11-17 14:57:47.000000000 +1100
@@ -0,0 +1,243 @@
+/* IBM RS/6000 "XCOFF" file definitions for BFD.
+ Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+ FIXME: Can someone provide a transliteration of this name into ASCII?
+ Using the following chars caused a compiler warning on HIUX (so I replaced
+ them with octal escapes), and isn't useful without an understanding of what
+ character set it is.
+ Written by Mimi Ph\373\364ng-Th\345o V\365 of IBM
+ and John Gilmore of Cygnus Support. */
+
+/********************** FILE HEADER **********************/
+
+struct external_filehdr {
+ char f_magic[2]; /* magic number */
+ char f_nscns[2]; /* number of sections */
+ char f_timdat[4]; /* time & date stamp */
+ char f_symptr[4]; /* file pointer to symtab */
+ char f_nsyms[4]; /* number of symtab entries */
+ char f_opthdr[2]; /* sizeof(optional hdr) */
+ char f_flags[2]; /* flags */
+};
+
+ /* IBM RS/6000 */
+#define U802WRMAGIC 0730 /* writeable text segments **chh** */
+#define U802ROMAGIC 0735 /* readonly sharable text segments */
+#define U802TOCMAGIC 0737 /* readonly text segments and TOC */
+
+#define BADMAG(x) \
+ ((x).f_magic != U802ROMAGIC && (x).f_magic != U802WRMAGIC && \
+ (x).f_magic != U802TOCMAGIC)
+
+#define FILHDR struct external_filehdr
+#define FILHSZ 20
+
+
+/********************** AOUT "OPTIONAL HEADER" **********************/
+
+
+typedef struct
+{
+ unsigned char magic[2]; /* type of file */
+ unsigned char vstamp[2]; /* version stamp */
+ unsigned char tsize[4]; /* text size in bytes, padded to FW bdry */
+ unsigned char dsize[4]; /* initialized data " " */
+ unsigned char bsize[4]; /* uninitialized data " " */
+ unsigned char entry[4]; /* entry pt. */
+ unsigned char text_start[4]; /* base of text used for this file */
+ unsigned char data_start[4]; /* base of data used for this file */
+ unsigned char o_toc[4]; /* address of TOC */
+ unsigned char o_snentry[2]; /* section number of entry point */
+ unsigned char o_sntext[2]; /* section number of .text section */
+ unsigned char o_sndata[2]; /* section number of .data section */
+ unsigned char o_sntoc[2]; /* section number of TOC */
+ unsigned char o_snloader[2]; /* section number of .loader section */
+ unsigned char o_snbss[2]; /* section number of .bss section */
+ unsigned char o_algntext[2]; /* .text alignment */
+ unsigned char o_algndata[2]; /* .data alignment */
+ unsigned char o_modtype[2]; /* module type (??) */
+ unsigned char o_cputype[2]; /* cpu type */
+ unsigned char o_maxstack[4]; /* max stack size (??) */
+ unsigned char o_maxdata[4]; /* max data size (??) */
+ unsigned char o_resv2[12]; /* reserved */
+}
+AOUTHDR;
+
+#define AOUTSZ 72
+#define SMALL_AOUTSZ (28)
+#define AOUTHDRSZ 72
+
+#define RS6K_AOUTHDR_OMAGIC 0x0107 /* old: text & data writeable */
+#define RS6K_AOUTHDR_NMAGIC 0x0108 /* new: text r/o, data r/w */
+#define RS6K_AOUTHDR_ZMAGIC 0x010B /* paged: text r/o, both page-aligned */
+
+
+/********************** SECTION HEADER **********************/
+
+
+struct external_scnhdr {
+ char s_name[8]; /* section name */
+ char s_paddr[4]; /* physical address, aliased s_nlib */
+ char s_vaddr[4]; /* virtual address */
+ char s_size[4]; /* section size */
+ char s_scnptr[4]; /* file ptr to raw data for section */
+ char s_relptr[4]; /* file ptr to relocation */
+ char s_lnnoptr[4]; /* file ptr to line numbers */
+ char s_nreloc[2]; /* number of relocation entries */
+ char s_nlnno[2]; /* number of line number entries*/
+ char s_flags[4]; /* flags */
+};
+
+/*
+ * names of "special" sections
+ */
+#define _TEXT ".text"
+#define _DATA ".data"
+#define _BSS ".bss"
+#define _PAD ".pad"
+#define _LOADER ".loader"
+
+#define SCNHDR struct external_scnhdr
+#define SCNHSZ 40
+
+/* XCOFF uses a special .loader section with type STYP_LOADER. */
+#define STYP_LOADER 0x1000
+
+/* XCOFF uses a special .debug section with type STYP_DEBUG. */
+#define STYP_DEBUG 0x2000
+
+/* XCOFF handles line number or relocation overflow by creating
+ another section header with STYP_OVRFLO set. */
+#define STYP_OVRFLO 0x8000
+
+/********************** LINE NUMBERS **********************/
+
+/* 1 line number entry for every "breakpointable" source line in a section.
+ * Line numbers are grouped on a per function basis; first entry in a function
+ * grouping will have l_lnno = 0 and in place of physical address will be the
+ * symbol table index of the function name.
+ */
+struct external_lineno {
+ union {
+ char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
+ char l_paddr[4]; /* (physical) address of line number */
+ } l_addr;
+ char l_lnno[2]; /* line number */
+};
+
+
+#define LINENO struct external_lineno
+#define LINESZ 6
+
+
+/********************** SYMBOLS **********************/
+
+#define E_SYMNMLEN 8 /* # characters in a symbol name */
+#define E_FILNMLEN 14 /* # characters in a file name */
+#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
+
+struct external_syment
+{
+ union {
+ char e_name[E_SYMNMLEN];
+ struct {
+ char e_zeroes[4];
+ char e_offset[4];
+ } e;
+ } e;
+ char e_value[4];
+ char e_scnum[2];
+ char e_type[2];
+ char e_sclass[1];
+ char e_numaux[1];
+};
+
+
+
+#define N_BTMASK (017)
+#define N_TMASK (060)
+#define N_BTSHFT (4)
+#define N_TSHIFT (2)
+
+
+union external_auxent {
+ struct {
+ char x_tagndx[4]; /* str, un, or enum tag indx */
+ union {
+ struct {
+ char x_lnno[2]; /* declaration line number */
+ char x_size[2]; /* str/union/array size */
+ } x_lnsz;
+ char x_fsize[4]; /* size of function */
+ } x_misc;
+ union {
+ struct { /* if ISFCN, tag, or .bb */
+ char x_lnnoptr[4]; /* ptr to fcn line # */
+ char x_endndx[4]; /* entry ndx past block end */
+ } x_fcn;
+ struct { /* if ISARY, up to 4 dimen. */
+ char x_dimen[E_DIMNUM][2];
+ } x_ary;
+ } x_fcnary;
+ char x_tvndx[2]; /* tv index */
+ } x_sym;
+
+ union {
+ char x_fname[E_FILNMLEN];
+ struct {
+ char x_zeroes[4];
+ char x_offset[4];
+ } x_n;
+ } x_file;
+
+ struct {
+ char x_scnlen[4]; /* section length */
+ char x_nreloc[2]; /* # relocation entries */
+ char x_nlinno[2]; /* # line numbers */
+ } x_scn;
+
+ struct {
+ char x_tvfill[4]; /* tv fill value */
+ char x_tvlen[2]; /* length of .tv */
+ char x_tvran[2][2]; /* tv range */
+ } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
+
+ struct {
+ unsigned char x_scnlen[4];
+ unsigned char x_parmhash[4];
+ unsigned char x_snhash[2];
+ unsigned char x_smtyp[1];
+ unsigned char x_smclas[1];
+ unsigned char x_stab[4];
+ unsigned char x_snstab[2];
+ } x_csect;
+
+};
+
+#define SYMENT struct external_syment
+#define SYMESZ 18
+#define AUXENT union external_auxent
+#define AUXESZ 18
+#define DBXMASK 0x80 /* for dbx storage mask */
+#define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK)
+
+
+
+/********************** RELOCATION DIRECTIVES **********************/
+
+
+struct external_reloc {
+ char r_vaddr[4];
+ char r_symndx[4];
+ char r_size[1];
+ char r_type[1];
+};
+
+
+#define RELOC struct external_reloc
+#define RELSZ 10
+
+#define DEFAULT_DATA_SECTION_ALIGNMENT 4
+#define DEFAULT_BSS_SECTION_ALIGNMENT 4
+#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
+/* For new sections we havn't heard of before */
+#define DEFAULT_SECTION_ALIGNMENT 4
diff -urN powerpc/arch/powerpc/boot/stdio.c merge-hack/arch/powerpc/boot/stdio.c
--- /dev/null 2005-11-19 12:36:29.626282000 +1100
+++ merge-hack/arch/powerpc/boot/stdio.c 2005-11-17 14:36:52.000000000 +1100
@@ -0,0 +1,325 @@
+/*
+ * Copyright (C) Paul Mackerras 1997.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <stdarg.h>
+#include <stddef.h>
+#include "string.h"
+#include "stdio.h"
+#include "prom.h"
+
+size_t strnlen(const char * s, size_t count)
+{
+ const char *sc;
+
+ for (sc = s; count-- && *sc != '\0'; ++sc)
+ /* nothing */;
+ return sc - s;
+}
+
+extern unsigned int __div64_32(unsigned long long *dividend,
+ unsigned int divisor);
+
+/* The unnecessary pointer compare is there
+ * to check for type safety (n must be 64bit)
+ */
+# define do_div(n,base) ({ \
+ unsigned int __base = (base); \
+ unsigned int __rem; \
+ (void)(((typeof((n)) *)0) == ((unsigned long long *)0)); \
+ if (((n) >> 32) == 0) { \
+ __rem = (unsigned int)(n) % __base; \
+ (n) = (unsigned int)(n) / __base; \
+ } else \
+ __rem = __div64_32(&(n), __base); \
+ __rem; \
+ })
+
+static int skip_atoi(const char **s)
+{
+ int i, c;
+
+ for (i = 0; '0' <= (c = **s) && c <= '9'; ++*s)
+ i = i*10 + c - '0';
+ return i;
+}
+
+#define ZEROPAD 1 /* pad with zero */
+#define SIGN 2 /* unsigned/signed long */
+#define PLUS 4 /* show plus */
+#define SPACE 8 /* space if plus */
+#define LEFT 16 /* left justified */
+#define SPECIAL 32 /* 0x */
+#define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */
+
+static char * number(char * str, unsigned long long num, int base, int size, int precision, int type)
+{
+ char c,sign,tmp[66];
+ const char *digits="0123456789abcdefghijklmnopqrstuvwxyz";
+ int i;
+
+ if (type & LARGE)
+ digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+ if (type & LEFT)
+ type &= ~ZEROPAD;
+ if (base < 2 || base > 36)
+ return 0;
+ c = (type & ZEROPAD) ? '0' : ' ';
+ sign = 0;
+ if (type & SIGN) {
+ if ((signed long long)num < 0) {
+ sign = '-';
+ num = - (signed long long)num;
+ size--;
+ } else if (type & PLUS) {
+ sign = '+';
+ size--;
+ } else if (type & SPACE) {
+ sign = ' ';
+ size--;
+ }
+ }
+ if (type & SPECIAL) {
+ if (base == 16)
+ size -= 2;
+ else if (base == 8)
+ size--;
+ }
+ i = 0;
+ if (num == 0)
+ tmp[i++]='0';
+ else while (num != 0) {
+ tmp[i++] = digits[do_div(num, base)];
+ }
+ if (i > precision)
+ precision = i;
+ size -= precision;
+ if (!(type&(ZEROPAD+LEFT)))
+ while(size-->0)
+ *str++ = ' ';
+ if (sign)
+ *str++ = sign;
+ if (type & SPECIAL) {
+ if (base==8)
+ *str++ = '0';
+ else if (base==16) {
+ *str++ = '0';
+ *str++ = digits[33];
+ }
+ }
+ if (!(type & LEFT))
+ while (size-- > 0)
+ *str++ = c;
+ while (i < precision--)
+ *str++ = '0';
+ while (i-- > 0)
+ *str++ = tmp[i];
+ while (size-- > 0)
+ *str++ = ' ';
+ return str;
+}
+
+int vsprintf(char *buf, const char *fmt, va_list args)
+{
+ int len;
+ unsigned long long num;
+ int i, base;
+ char * str;
+ const char *s;
+
+ int flags; /* flags to number() */
+
+ int field_width; /* width of output field */
+ int precision; /* min. # of digits for integers; max
+ number of chars for from string */
+ int qualifier; /* 'h', 'l', or 'L' for integer fields */
+ /* 'z' support added 23/7/1999 S.H. */
+ /* 'z' changed to 'Z' --davidm 1/25/99 */
+
+
+ for (str=buf ; *fmt ; ++fmt) {
+ if (*fmt != '%') {
+ *str++ = *fmt;
+ continue;
+ }
+
+ /* process flags */
+ flags = 0;
+ repeat:
+ ++fmt; /* this also skips first '%' */
+ switch (*fmt) {
+ case '-': flags |= LEFT; goto repeat;
+ case '+': flags |= PLUS; goto repeat;
+ case ' ': flags |= SPACE; goto repeat;
+ case '#': flags |= SPECIAL; goto repeat;
+ case '0': flags |= ZEROPAD; goto repeat;
+ }
+
+ /* get field width */
+ field_width = -1;
+ if ('0' <= *fmt && *fmt <= '9')
+ field_width = skip_atoi(&fmt);
+ else if (*fmt == '*') {
+ ++fmt;
+ /* it's the next argument */
+ field_width = va_arg(args, int);
+ if (field_width < 0) {
+ field_width = -field_width;
+ flags |= LEFT;
+ }
+ }
+
+ /* get the precision */
+ precision = -1;
+ if (*fmt == '.') {
+ ++fmt;
+ if ('0' <= *fmt && *fmt <= '9')
+ precision = skip_atoi(&fmt);
+ else if (*fmt == '*') {
+ ++fmt;
+ /* it's the next argument */
+ precision = va_arg(args, int);
+ }
+ if (precision < 0)
+ precision = 0;
+ }
+
+ /* get the conversion qualifier */
+ qualifier = -1;
+ if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || *fmt =='Z') {
+ qualifier = *fmt;
+ ++fmt;
+ }
+
+ /* default base */
+ base = 10;
+
+ switch (*fmt) {
+ case 'c':
+ if (!(flags & LEFT))
+ while (--field_width > 0)
+ *str++ = ' ';
+ *str++ = (unsigned char) va_arg(args, int);
+ while (--field_width > 0)
+ *str++ = ' ';
+ continue;
+
+ case 's':
+ s = va_arg(args, char *);
+ if (!s)
+ s = "<NULL>";
+
+ len = strnlen(s, precision);
+
+ if (!(flags & LEFT))
+ while (len < field_width--)
+ *str++ = ' ';
+ for (i = 0; i < len; ++i)
+ *str++ = *s++;
+ while (len < field_width--)
+ *str++ = ' ';
+ continue;
+
+ case 'p':
+ if (field_width == -1) {
+ field_width = 2*sizeof(void *);
+ flags |= ZEROPAD;
+ }
+ str = number(str,
+ (unsigned long) va_arg(args, void *), 16,
+ field_width, precision, flags);
+ continue;
+
+
+ case 'n':
+ if (qualifier == 'l') {
+ long * ip = va_arg(args, long *);
+ *ip = (str - buf);
+ } else if (qualifier == 'Z') {
+ size_t * ip = va_arg(args, size_t *);
+ *ip = (str - buf);
+ } else {
+ int * ip = va_arg(args, int *);
+ *ip = (str - buf);
+ }
+ continue;
+
+ case '%':
+ *str++ = '%';
+ continue;
+
+ /* integer number formats - set up the flags and "break" */
+ case 'o':
+ base = 8;
+ break;
+
+ case 'X':
+ flags |= LARGE;
+ case 'x':
+ base = 16;
+ break;
+
+ case 'd':
+ case 'i':
+ flags |= SIGN;
+ case 'u':
+ break;
+
+ default:
+ *str++ = '%';
+ if (*fmt)
+ *str++ = *fmt;
+ else
+ --fmt;
+ continue;
+ }
+ if (qualifier == 'l') {
+ num = va_arg(args, unsigned long);
+ if (flags & SIGN)
+ num = (signed long) num;
+ } else if (qualifier == 'Z') {
+ num = va_arg(args, size_t);
+ } else if (qualifier == 'h') {
+ num = (unsigned short) va_arg(args, int);
+ if (flags & SIGN)
+ num = (signed short) num;
+ } else {
+ num = va_arg(args, unsigned int);
+ if (flags & SIGN)
+ num = (signed int) num;
+ }
+ str = number(str, num, base, field_width, precision, flags);
+ }
+ *str = '\0';
+ return str-buf;
+}
+
+int sprintf(char * buf, const char *fmt, ...)
+{
+ va_list args;
+ int i;
+
+ va_start(args, fmt);
+ i=vsprintf(buf,fmt,args);
+ va_end(args);
+ return i;
+}
+
+static char sprint_buf[1024];
+
+int
+printf(const char *fmt, ...)
+{
+ va_list args;
+ int n;
+
+ va_start(args, fmt);
+ n = vsprintf(sprint_buf, fmt, args);
+ va_end(args);
+ write(stdout, sprint_buf, n);
+ return n;
+}
diff -urN powerpc/arch/powerpc/boot/stdio.h merge-hack/arch/powerpc/boot/stdio.h
--- powerpc/arch/powerpc/boot/stdio.h 2005-11-16 15:55:17.000000000 +1100
+++ merge-hack/arch/powerpc/boot/stdio.h 2005-11-17 11:07:34.000000000 +1100
@@ -7,10 +7,4 @@
extern int vsprintf(char *buf, const char *fmt, va_list args);
-extern int putc(int c, void *f);
-extern int putchar(int c);
-extern int getchar(void);
-
-extern int fputs(char *str, void *f);
-
#endif /* _PPC_BOOT_STDIO_H_ */
diff -urN powerpc/arch/powerpc/boot/zImage.coff.lds merge-hack/arch/powerpc/boot/zImage.coff.lds
--- /dev/null 2005-11-19 12:36:29.626282000 +1100
+++ merge-hack/arch/powerpc/boot/zImage.coff.lds 2005-11-18 22:19:31.000000000 +1100
@@ -0,0 +1,46 @@
+OUTPUT_ARCH(powerpc:common)
+ENTRY(_start)
+SECTIONS
+{
+ . = (5*1024*1024);
+ _start = .;
+ .text :
+ {
+ *(.text)
+ *(.fixup)
+ }
+ _etext = .;
+ . = ALIGN(4096);
+ .data :
+ {
+ *(.rodata*)
+ *(.data*)
+ *(.sdata*)
+ __got2_start = .;
+ *(.got2)
+ __got2_end = .;
+
+ _vmlinux_start = .;
+ *(.kernel:vmlinux.strip)
+ _vmlinux_end = .;
+
+ _initrd_start = .;
+ *(.kernel:initrd)
+ _initrd_end = .;
+ }
+
+ . = ALIGN(4096);
+ _edata = .;
+ __bss_start = .;
+ .bss :
+ {
+ *(.sbss)
+ *(.bss)
+ }
+ _end = . ;
+
+ /DISCARD/ :
+ {
+ *(.comment)
+ }
+}
diff -urN powerpc/arch/powerpc/boot/zImage.lds merge-hack/arch/powerpc/boot/zImage.lds
--- powerpc/arch/powerpc/boot/zImage.lds 2005-11-16 15:55:17.000000000 +1100
+++ merge-hack/arch/powerpc/boot/zImage.lds 2005-11-18 21:21:04.000000000 +1100
@@ -2,7 +2,7 @@
ENTRY(_zimage_start)
SECTIONS
{
- . = (4*1024*1024);
+ . = (5*1024*1024);
_start = .;
.text :
{
@@ -33,8 +33,6 @@
. = ALIGN(4096);
_edata = .;
-
- . = ALIGN(4096);
__bss_start = .;
.bss :
{
^ permalink raw reply
* Memtest-SDRAM
From: srideep.devireddy @ 2005-11-19 4:33 UTC (permalink / raw)
To: linuxppc-embedded
[-- Attachment #1: Type: text/plain, Size: 753 bytes --]
Hi all ,
Can I comprehensively test and conform that my SDRAM is creating
problem other than mtest at u-boot( which I already implemented the
mtest with the help of mailing list , where my memory failed . ) , if is
there is a way please do let me know .
Thanks in advance,
Best Regards\
Srideep
Confidentiality Notice
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for the exclusive use of the addressee(s) and may contain confidential or privileged information. If
you are not the intended recipient, please notify the sender at Wipro or Mailadmin@wipro.com immediately
and destroy all copies of this message and any attachments.
[-- Attachment #2: Type: text/html, Size: 3371 bytes --]
^ permalink raw reply
* Re: [PATCH] m8xx_wdt: software watchdog reset/interrupt select
From: Florian Schirmer @ 2005-11-19 6:16 UTC (permalink / raw)
To: Marcelo Tosatti; +Cc: obi, carjay, linux-ppc-embedded
In-Reply-To: <20051118153657.GA13943@logos.cnet>
Hi,
> After your message I decided to check if the PIT is working, guess what: it isnt.
>
> Our board uses an external RTC (the internal RTC/PIT HW seem to be
> nonexistant/nonfunctional).
Now it starts to make sense :-) Patch looks good. If Dan doesn't come up
with a better idea to solve the clock detection problem feel free to go
ahead and send it upstream.
Best,
Florian
^ permalink raw reply
* Re: [PATCH] generate COFF zImage in arch/powerpc/boot
From: Olaf Hering @ 2005-11-19 8:46 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <17278.40894.898159.724090@cargo.ozlabs.ibm.com>
On Sat, Nov 19, Paul Mackeras wrote:
> There is still something I haven't got right: if you do make -j3, it
> does this sort of thing:
>
> STRIP vmlinux.strip
> STRIP vmlinux.strip
> GZIP arch/powerpc/boot/kernel-vmlinux.strip.gz
> GZIP arch/powerpc/boot/kernel-vmlinux.strip.gz
> BOOTCC arch/powerpc/boot/kernel-vmlinux.strip.o
> BOOTCC arch/powerpc/boot/kernel-vmlinux.strip.o
> mv: cannot stat `arch/powerpc/boot/.kernel-vmlinux.strip.o.tmp': No such file or directory
> make[2]: *** [arch/powerpc/boot/kernel-vmlinux.strip.o] Error 1
> make[1]: *** [zImage] Error 2
>
> I have no idea why it tries to make those things twice in parallel.
> It doesn't do that for vmlinux.
I think this comes from the targets evaluation. Maybe strip needs to be
some sort of serialization:
cmd_stripvm = $(STRIP) -s -R .comment $< -o $@.$$$$ && mv -v $@.$$$$ $@
gzip is also called twice, use the mygzip rule from
arch/ppc/boot/images/Makefile
--
short story of a lazy sysadmin:
alias appserv=wotan
^ permalink raw reply
* Re: [PATCH] generate COFF zImage in arch/powerpc/boot
From: Olaf Hering @ 2005-11-19 9:12 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <20051119084654.GA29731@suse.de>
On Sat, Nov 19, Olaf Hering wrote:
> On Sat, Nov 19, Paul Mackeras wrote:
>
> > There is still something I haven't got right: if you do make -j3, it
> > does this sort of thing:
> >
> > STRIP vmlinux.strip
> > STRIP vmlinux.strip
> > GZIP arch/powerpc/boot/kernel-vmlinux.strip.gz
> > GZIP arch/powerpc/boot/kernel-vmlinux.strip.gz
> > BOOTCC arch/powerpc/boot/kernel-vmlinux.strip.o
> > BOOTCC arch/powerpc/boot/kernel-vmlinux.strip.o
> > mv: cannot stat `arch/powerpc/boot/.kernel-vmlinux.strip.o.tmp': No such file or directory
> > make[2]: *** [arch/powerpc/boot/kernel-vmlinux.strip.o] Error 1
> > make[1]: *** [zImage] Error 2
> >
> > I have no idea why it tries to make those things twice in parallel.
I got this:
Building modules, stage 2.
BOOTAS arch/powerpc/boot/crt0.o
BOOTCC arch/powerpc/boot/prom.o
BOOTAS arch/powerpc/boot/crt0.o
BOOTCC arch/powerpc/boot/prom.o
BOOTCC arch/powerpc/boot/stdio.o
BOOTCC arch/powerpc/boot/main.o
BOOTCC arch/powerpc/boot/stdio.o
BOOTCC arch/powerpc/boot/main.o
HOSTCC arch/powerpc/boot/hack-coff
mv: cannot stat `arch/powerpc/boot/.crt0.o.tmp': No such file or directory
make[2]: *** [arch/powerpc/boot/crt0.o] Error 1
make[2]: *** Waiting for unfinished jobs....
mv: cannot stat `arch/powerpc/boot/.prom.o.tmp': No such file or directory
make[2]: *** [arch/powerpc/boot/prom.o] Error 1
fixdep: arch/powerpc/boot/.main.o.d: No such file or directory
make[2]: *** [arch/powerpc/boot/main.o] Error 2
make[1]: *** [zImage] Error 2
make[1]: *** Waiting for unfinished jobs....
mv: cannot stat `arch/powerpc/boot/.stdio.o.tmp': No such file or directory
make[2]: *** [arch/powerpc/boot/stdio.o] Error 1
make[1]: *** [zImage.coff] Error 2
The dependencies need some work.
--
short story of a lazy sysadmin:
alias appserv=wotan
^ permalink raw reply
* Re: [PATCH] generate COFF zImage in arch/powerpc/boot
From: Olaf Hering @ 2005-11-19 10:29 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <17278.40894.898159.724090@cargo.ozlabs.ibm.com>
On Sat, Nov 19, Paul Mackeras wrote:
> Olaf Hering writes:
>
> > So we either need a ld script for coff with kernel and initrd in the
> > .data section. Or we write a tool to extract the vmlinux.gz and initrd
> > based on nm or readelf -a output.
>
> Here's a new version that does the first of those...
>
> The zImage base address could go back to 4MB now. In fact one could
> argue that if OF is based at 12MB and load-base is near zero, linking
> it at 6MB would be best.
>
> There is still something I haven't got right: if you do make -j3, it
> does this sort of thing:
>
> STRIP vmlinux.strip
> STRIP vmlinux.strip
> GZIP arch/powerpc/boot/kernel-vmlinux.strip.gz
> GZIP arch/powerpc/boot/kernel-vmlinux.strip.gz
> BOOTCC arch/powerpc/boot/kernel-vmlinux.strip.o
> BOOTCC arch/powerpc/boot/kernel-vmlinux.strip.o
> mv: cannot stat `arch/powerpc/boot/.kernel-vmlinux.strip.o.tmp': No such file or directory
> make[2]: *** [arch/powerpc/boot/kernel-vmlinux.strip.o] Error 1
> make[1]: *** [zImage] Error 2
>
> I have no idea why it tries to make those things twice in parallel.
> It doesn't do that for vmlinux.
This patch on top of yours fixes it for me.
All members of $(BOOT_TARGETS) will be built in parallel.
make zImage.vmode doesnt work right now, without your patch.
And all it gains is one less host prog and one less zImage file.
Same for zImage.coff. Is it worth the trouble?
arch/powerpc/Makefile | 5 ++---
arch/powerpc/boot/Makefile | 10 +++++-----
2 files changed, 7 insertions(+), 8 deletions(-)
Index: linux-2.6.15-rc1-olh/arch/powerpc/boot/Makefile
===================================================================
--- linux-2.6.15-rc1-olh.orig/arch/powerpc/boot/Makefile
+++ linux-2.6.15-rc1-olh/arch/powerpc/boot/Makefile
@@ -89,7 +89,7 @@ gz-sec = $(foreach section, $(1), $(pat
hostprogs-y := addnote addRamDisk hack-coff
-targets += zImage.vmode zImage.initrd.vmode zImage zImage.initrd \
+targets += zImage zImage.initrd \
$(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
$(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
$(patsubst $(obj)/%,%, $(call gz-sec, $(required) $(initrd))) \
@@ -132,19 +132,19 @@ $(call obj-sec, $(required) $(initrd)):
$(call if_changed_dep,bootcc)
$(call cmd,addsection)
-$(obj)/zImage.vmode $(obj)/zImage.coff: obj-boot += $(call obj-sec, $(required))
+$(obj)/zImage.vmode: obj-boot += $(call obj-sec, $(required))
$(obj)/zImage.vmode: $(call obj-sec, $(required)) $(obj-boot) $(srctree)/$(src)/zImage.lds
$(call cmd,bootld,$(obj-boot),zImage.lds)
-$(obj)/zImage.initrd.vmode $(obj)/zImage.initrd.coff: obj-boot += $(call obj-sec, $(required) $(initrd))
+$(obj)/zImage.initrd.vmode: obj-boot += $(call obj-sec, $(required) $(initrd))
$(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(srctree)/$(src)/zImage.lds
$(call cmd,bootld,$(obj-boot),zImage.lds)
-$(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote
+$(obj)/zImage: $(obj)/zImage.vmode $(obj)/zImage.coff $(obj)/addnote
@cp -f $< $@
$(call if_changed,addnote)
-$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/addnote
+$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/zImage.initrd.coff $(obj)/addnote
@cp -f $< $@
$(call if_changed,addnote)
Index: linux-2.6.15-rc1-olh/arch/powerpc/Makefile
===================================================================
--- linux-2.6.15-rc1-olh.orig/arch/powerpc/Makefile
+++ linux-2.6.15-rc1-olh/arch/powerpc/Makefile
@@ -138,7 +138,7 @@ drivers-$(CONFIG_CPM2) += arch/ppc/8260
drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
-defaultimage-$(CONFIG_PPC32) := zImage zImage.coff
+defaultimage-$(CONFIG_PPC32) := zImage
defaultimage-$(CONFIG_PPC_ISERIES) := vmlinux
defaultimage-$(CONFIG_PPC_PSERIES) := zImage
KBUILD_IMAGE := $(defaultimage-y)
@@ -149,8 +149,7 @@ CPPFLAGS_vmlinux.lds := -Upowerpc
# All the instructions talk about "make bzImage".
bzImage: zImage
-BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm \
- zImage.vmode zImage.initrd.vmode zImage.coff zImage.initrd.coff
+BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
.PHONY: $(BOOT_TARGETS)
--
short story of a lazy sysadmin:
alias appserv=wotan
^ permalink raw reply
* Re: Memtest-SDRAM
From: Wolfgang Denk @ 2005-11-19 15:24 UTC (permalink / raw)
To: srideep.devireddy; +Cc: linuxppc-embedded
In-Reply-To: <6AD9F6A5F6E096408F0B703773355A0765E931@CHN-SNR-MBX01.wipro.com>
In message <6AD9F6A5F6E096408F0B703773355A0765E931@CHN-SNR-MBX01.wipro.com> you wrote:
>
> Can I comprehensively test and conform that my SDRAM is creating
> problem other than mtest at u-boot( which I already implemented the
> mtest with the help of mailing list , where my memory failed . ) , if is
> there is a way please do let me know .
A simple test is: if Linux is running without problems under load
than there are no problems with your SDRAM.
See also the U-Boot FAQ.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
I have a very small mind and must live with it. -- Edsger Dijkstra
^ permalink raw reply
* Re: [PATCH] generate COFF zImage in arch/powerpc/boot
From: Olaf Hering @ 2005-11-19 17:29 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <20051119102952.GA32273@suse.de>
On Sat, Nov 19, Olaf Hering wrote:
> This patch on top of yours fixes it for me.
Another Makefile fix to actually include the kernel in the zImage.coff.
With this my 7200 almost works. There is one thing that I cant explain
right now. alloc_up calls prom_claim at some point, and it stores the
result in alloc_bottom. r30 holds the address where the code is running.
But this reg is 0 after returning from prom_claim. My debug patch below
adds checks for the value of r30, there is no way it can return with r30
being 0, according to the objdump output. But still it does.
If I enable DEBUG_PROM, and add a 2 or 3 prom_debug calls, everything
works. Any idea what that means?
arch/powerpc/boot/Makefile | 2 ++
arch/powerpc/boot/main.c | 9 +++------
arch/powerpc/kernel/prom_init.c | 21 +++++++++++++++++++++
3 files changed, 26 insertions(+), 6 deletions(-)
Index: linux-2.6.15-rc1-olh/arch/powerpc/boot/Makefile
===================================================================
--- linux-2.6.15-rc1-olh.orig/arch/powerpc/boot/Makefile
+++ linux-2.6.15-rc1-olh/arch/powerpc/boot/Makefile
@@ -140,10 +140,12 @@ $(obj)/zImage.initrd.vmode: obj-boot +=
$(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(srctree)/$(src)/zImage.lds
$(call cmd,bootld,$(obj-boot),zImage.lds)
+$(obj)/zImage.coff: obj-boot += $(call obj-sec, $(required))
$(obj)/zImage: $(obj)/zImage.vmode $(obj)/zImage.coff $(obj)/addnote
@cp -f $< $@
$(call if_changed,addnote)
+$(obj)/zImage.initrd.coff: obj-boot += $(call obj-sec, $(required) $(initrd))
$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/zImage.initrd.coff $(obj)/addnote
@cp -f $< $@
$(call if_changed,addnote)
Index: linux-2.6.15-rc1-olh/arch/powerpc/boot/main.c
===================================================================
--- linux-2.6.15-rc1-olh.orig/arch/powerpc/boot/main.c
+++ linux-2.6.15-rc1-olh/arch/powerpc/boot/main.c
@@ -299,15 +299,12 @@ void start(unsigned long a1, unsigned lo
flush_cache((void *)vmlinux.addr, vmlinux.size);
kernel_entry = (kernel_entry_t)vmlinux.addr;
-#ifdef DEBUG
+#if 1
printf( "kernel:\n\r"
" entry addr = 0x%lx\n\r"
" a1 = 0x%lx,\n\r"
- " a2 = 0x%lx,\n\r"
- " prom = 0x%lx,\n\r"
- " bi_recs = 0x%lx,\n\r",
- (unsigned long)kernel_entry, a1, a2,
- (unsigned long)prom, NULL);
+ " a2 = 0x%lx,\n\r",
+ (unsigned long)kernel_entry, a1, a2);
#endif
kernel_entry(a1, a2, prom, NULL);
Index: linux-2.6.15-rc1-olh/arch/powerpc/kernel/prom_init.c
===================================================================
--- linux-2.6.15-rc1-olh.orig/arch/powerpc/kernel/prom_init.c
+++ linux-2.6.15-rc1-olh/arch/powerpc/kernel/prom_init.c
@@ -144,6 +144,7 @@ struct mem_map_entry {
typedef u32 cell_t;
extern void __start(unsigned long r3, unsigned long r4, unsigned long r5);
+static inline unsigned long __init olh_reg30(void) { unsigned long reg; __asm__ __volatile__("mr %0,30\n" : "=r" (reg)); return reg; }
#ifdef CONFIG_PPC64
extern int enter_prom(struct prom_args *args, unsigned long entry);
@@ -242,9 +243,13 @@ static int __init call_prom(const char *
for (i = 0; i < nret; i++)
args.args[nargs+i] = 0;
+ if (!olh_reg30())
+ asm(".long 0x0\n");
if (enter_prom(&args, RELOC(prom_entry)) < 0)
return PROM_ERROR;
+ if (!olh_reg30())
+ asm(".long 0x0\n");
return (nret > 0) ? args.args[nargs] : 0;
}
@@ -255,6 +260,8 @@ static int __init call_prom_ret(const ch
struct prom_args args;
va_list list;
+ if (!olh_reg30())
+ asm(".long 0x0\n");
args.service = ADDR(service);
args.nargs = nargs;
args.nret = nret;
@@ -274,6 +281,8 @@ static int __init call_prom_ret(const ch
for (i = 1; i < nret; ++i)
rets[i-1] = args.args[nargs+i];
+ if (!olh_reg30())
+ asm(".long 0x0\n");
return (nret > 0) ? args.args[nargs] : 0;
}
@@ -364,6 +373,8 @@ static unsigned int __init prom_claim(un
{
struct prom_t *_prom = &RELOC(prom);
+ if (!olh_reg30())
+ asm(".long 0x0\n");
if (align == 0 && (OF_WORKAROUNDS & OF_WA_CLAIM)) {
/*
* Old OF requires we claim physical and virtual separately
@@ -375,21 +386,29 @@ static unsigned int __init prom_claim(un
ret = call_prom_ret("call-method", 5, 2, &result,
ADDR("claim"), _prom->memory,
align, size, virt);
+ if (!olh_reg30())
+ asm(".long 0x0\n");
if (ret != 0 || result == -1)
return -1;
ret = call_prom_ret("call-method", 5, 2, &result,
ADDR("claim"), _prom->mmumap,
align, size, virt);
+ if (!olh_reg30())
+ asm(".long 0x0\n");
if (ret != 0) {
call_prom("call-method", 4, 1, ADDR("release"),
_prom->memory, size, virt);
+ asm(".long 0x0\n");
return -1;
}
/* the 0x12 is M (coherence) + PP == read/write */
call_prom("call-method", 6, 1,
ADDR("map"), _prom->mmumap, 0x12, size, virt, virt);
+ if (!olh_reg30())
+ asm(".long 0x0\n");
return virt;
}
+ asm(".long 0x0\n");
return call_prom("claim", 3, 1, (prom_arg_t)virt, (prom_arg_t)size,
(prom_arg_t)align);
}
@@ -752,6 +771,8 @@ static unsigned long __init alloc_up(uns
base = _ALIGN_UP(base + 0x100000, align)) {
prom_debug(" trying: 0x%x\n\r", base);
addr = (unsigned long)prom_claim(base, size, 0);
+ if (!olh_reg30())
+ asm(".long 0x0\n");
if (addr != PROM_ERROR && addr != 0)
break;
addr = 0;
--
short story of a lazy sysadmin:
alias appserv=wotan
^ permalink raw reply
* Re: [PATCH] generate COFF zImage in arch/powerpc/boot
From: Olaf Hering @ 2005-11-19 20:47 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <20051119172900.GA11829@suse.de>
On Sat, Nov 19, Olaf Hering wrote:
> On Sat, Nov 19, Olaf Hering wrote:
>
> > This patch on top of yours fixes it for me.
>
> Another Makefile fix to actually include the kernel in the zImage.coff.
The kernel entry point should be printed unconditional. It helps
debugging the early init when it doesnt run at the link address.
My stack corruption was caused by a bug in call_prom_ret. It uses the
wrong pointer to clear the memory of the return values.
arch/powerpc/boot/Makefile | 2 ++
arch/powerpc/boot/main.c | 12 ++----------
arch/powerpc/kernel/prom_init.c | 2 +-
3 files changed, 5 insertions(+), 11 deletions(-)
Index: linux-2.6.15-rc1-olh/arch/powerpc/boot/Makefile
===================================================================
--- linux-2.6.15-rc1-olh.orig/arch/powerpc/boot/Makefile
+++ linux-2.6.15-rc1-olh/arch/powerpc/boot/Makefile
@@ -140,10 +140,12 @@ $(obj)/zImage.initrd.vmode: obj-boot +=
$(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(srctree)/$(src)/zImage.lds
$(call cmd,bootld,$(obj-boot),zImage.lds)
+$(obj)/zImage.coff: obj-boot += $(call obj-sec, $(required))
$(obj)/zImage: $(obj)/zImage.vmode $(obj)/zImage.coff $(obj)/addnote
@cp -f $< $@
$(call if_changed,addnote)
+$(obj)/zImage.initrd.coff: obj-boot += $(call obj-sec, $(required) $(initrd))
$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/zImage.initrd.coff $(obj)/addnote
@cp -f $< $@
$(call if_changed,addnote)
Index: linux-2.6.15-rc1-olh/arch/powerpc/boot/main.c
===================================================================
--- linux-2.6.15-rc1-olh.orig/arch/powerpc/boot/main.c
+++ linux-2.6.15-rc1-olh/arch/powerpc/boot/main.c
@@ -299,16 +299,8 @@ void start(unsigned long a1, unsigned lo
flush_cache((void *)vmlinux.addr, vmlinux.size);
kernel_entry = (kernel_entry_t)vmlinux.addr;
-#ifdef DEBUG
- printf( "kernel:\n\r"
- " entry addr = 0x%lx\n\r"
- " a1 = 0x%lx,\n\r"
- " a2 = 0x%lx,\n\r"
- " prom = 0x%lx,\n\r"
- " bi_recs = 0x%lx,\n\r",
- (unsigned long)kernel_entry, a1, a2,
- (unsigned long)prom, NULL);
-#endif
+ printf( "entering kernel at 0x%08x(%x/%x/%08x)\n\r",
+ (unsigned long)kernel_entry, a1, a2, prom);
kernel_entry(a1, a2, prom, NULL);
Index: linux-2.6.15-rc1-olh/arch/powerpc/kernel/prom_init.c
===================================================================
--- linux-2.6.15-rc1-olh.orig/arch/powerpc/kernel/prom_init.c
+++ linux-2.6.15-rc1-olh/arch/powerpc/kernel/prom_init.c
@@ -265,7 +265,7 @@ static int __init call_prom_ret(const ch
va_end(list);
for (i = 0; i < nret; i++)
- rets[nargs+i] = 0;
+ args.args[nargs+i] = 0;
if (enter_prom(&args, RELOC(prom_entry)) < 0)
return PROM_ERROR;
--
short story of a lazy sysadmin:
alias appserv=wotan
^ permalink raw reply
* [PATCH] Fix oops in MGA DRM on root bus.
From: David Woodhouse @ 2005-11-19 23:19 UTC (permalink / raw)
To: airlied, greg; +Cc: linuxppc-dev
I think that if a PCI bus is a root bus, attached to a host bridge not a
PCI->PCI bridge, then bus->self is allowed to be NULL. Certainly that's
the case on my Pegasos, and it makes the MGA DRM driver oops...
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/drivers/char/drm/mga_drv.c b/drivers/char/drm/mga_drv.c
--- a/drivers/char/drm/mga_drv.c
+++ b/drivers/char/drm/mga_drv.c
@@ -161,7 +161,7 @@ static int mga_driver_device_is_agp(drm_
* device.
*/
- if ((pdev->device == 0x0525)
+ if ((pdev->device == 0x0525) && pdev->bus->self &&
&& (pdev->bus->self->vendor == 0x3388)
&& (pdev->bus->self->device == 0x0021)) {
return 0;
--
dwmw2
^ permalink raw reply
* Re: [PATCH] Fix oops in MGA DRM on root bus.
From: David Woodhouse @ 2005-11-20 0:08 UTC (permalink / raw)
To: greg, airlied; +Cc: linuxppc-dev
In-Reply-To: <1132442389.4084.5.camel@baythorne.infradead.org>
On Sat, 2005-11-19 at 23:19 +0000, David Woodhouse wrote:
> - if ((pdev->device == 0x0525)
> + if ((pdev->device == 0x0525) && pdev->bus->self &&
> && (pdev->bus->self->vendor == 0x3388)
> && (pdev->bus->self->device == 0x0021)) {
> return 0;
Perhaps with one fewer '&&'...
diff --git a/drivers/char/drm/mga_drv.c b/drivers/char/drm/mga_drv.c
--- a/drivers/char/drm/mga_drv.c
+++ b/drivers/char/drm/mga_drv.c
@@ -161,7 +161,7 @@ static int mga_driver_device_is_agp(drm_
* device.
*/
- if ((pdev->device == 0x0525)
+ if ((pdev->device == 0x0525) && pdev->bus->self
&& (pdev->bus->self->vendor == 0x3388)
&& (pdev->bus->self->device == 0x0021)) {
return 0;
--
dwmw2
^ permalink raw reply
* [PATCH] ppc32: smc1_lineif fix for mpc8272
From: Mike Rapoport @ 2005-11-20 14:05 UTC (permalink / raw)
To: galak; +Cc: 'linuxppc-embedded@ozlabs.org'
[-- Attachment #1: Type: text/plain, Size: 154 bytes --]
This patch fixes the pin assignment of SMC1 for MPC8272 family
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
--
Sincerely yours,
Mike Rapoport
[-- Attachment #2: smc_8272.patch --]
[-- Type: text/x-diff, Size: 728 bytes --]
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -89,11 +89,19 @@ void smc1_lineif(struct uart_cpm_port *p
{
volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
+#ifdef CONFIG_8272
+ /* SMC1 is only on port C on 8272 */
+ io->iop_pparc |= 0x0c000000;
+ io->iop_pdirc |= 0x04000000;
+ io->iop_pdirc &= ~0x08000000;
+ io->iop_psorc &= ~0x0c000000;
+#else
/* SMC1 is only on port D */
io->iop_ppard |= 0x00c00000;
io->iop_pdird |= 0x00400000;
io->iop_pdird &= ~0x00800000;
io->iop_psord &= ~0x00c00000;
+#endif
/* Wire BRG1 to SMC1 */
cpm2_immr->im_cpmux.cmx_smr &= 0x0f;
^ permalink raw reply
* Re: Memtest-SDRAM
From: Kylo Ginsberg @ 2005-11-20 18:58 UTC (permalink / raw)
To: Wolfgang Denk; +Cc: linuxppc-embedded
In-Reply-To: <20051119152413.D0B44353BEF@atlas.denx.de>
On 11/19/05, Wolfgang Denk <wd@denx.de> wrote:
> In message <6AD9F6A5F6E096408F0B703773355A0765E931@CHN-SNR-MBX01.wipro.co=
m> you wrote:
> >
> > Can I comprehensively test and conform that my SDRAM is creating
> > problem other than mtest at u-boot( which I already implemented the
> > mtest with the help of mailing list , where my memory failed . ) , if i=
s
> > there is a way please do let me know .
>
> A simple test is: if Linux is running without problems under load
> than there are no problems with your SDRAM.
Yes, but determining the proper load to test with can be tricky.=20
E.g., I had a subtle memory timing issue that only turned up under
very peculiar circumstances under linux; this was very difficult to
reproduce until I started using a simple user-space memory tester
application, which could very reliably produce failures. Fwiw, I
started with this:
http://pyropus.ca/software/memtester/
Cheers,
Kylo
^ permalink raw reply
* Re: Memtest-SDRAM
From: Wolfgang Denk @ 2005-11-20 20:30 UTC (permalink / raw)
To: Kylo Ginsberg; +Cc: linuxppc-embedded
In-Reply-To: <61cc712d0511201058p367df361i7e46591336918712@mail.gmail.com>
In message <61cc712d0511201058p367df361i7e46591336918712@mail.gmail.com> you wrote:
>
> > A simple test is: if Linux is running without problems under load
> > than there are no problems with your SDRAM.
>
> Yes, but determining the proper load to test with can be tricky.
Ummm.. I disagree. Avtually it's pretty simple. Boot the system with
root file system mounted over NFS. The compile a Linux kernel
natively on the board. This is doing all you want: stressing network
(lots of DMA), stressing the memory (lots of context switches and
heavy RAM use), etc. If your system survives this, you can be 98%
sure that it will pass any other test as well.
> E.g., I had a subtle memory timing issue that only turned up under
> very peculiar circumstances under linux; this was very difficult to
Of course there are really weird cases, but fortunaltey these are
rare exceptions.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Committee, n.: A group of men who individually can do nothing but as
a group decide that nothing can be done. - Fred Allen
^ permalink raw reply
* anyone used i2c-algo-8260 for the MPC8272 family?
From: Ron Kellam @ 2005-11-21 6:56 UTC (permalink / raw)
To: linuxppc-embedded
Hi all,
I'm trying to get i2c-algo-8260 and i2c-pm826 working on an MPC8247.
It doesn't... It just hangs the kernel.
There are some subtle differences b/t the 8260 family and 8272 family.
The 8272 family only has 8KB DPRAM (c.f. 16KB), so I believe the
definition of PROFF_I2C in include/linux/cpm_8260.h should be
different. I've changed it from:
#define PROFF_I2C ((16 * 1024) - 64)
to
#define PROFF_I2C ((8 * 1024) - 64)
but still get no I2C activity, and a kernel hang.
Anyone have this working, or any thoughts to contribute?
Regards,
Ron Kellam.
^ permalink raw reply
* Re:Re: Help ! 2.6.14 kernel can't bring up
From: zjznliang @ 2005-11-21 6:59 UTC (permalink / raw)
To: clemens.koller; +Cc: linuxppc-embedded
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IGZvciB5b3VyIHBhdGllbmNlLg0KIA0KCQlJZiB5b3UgaGF2ZSBzb21lIGFkdmljZXMgLHBsZWFz
ZSBsZXQgbWUga25vdyAgLlRoYW5rIHlvdSAhIA0KIAkJCQkNCg0KoaGhoXpqem5saWFuZw0KoaGh
oaGhoaF6anpubGlhbmdfcG9wb0AxNjMuY29tDQqhoaGhoaGhoaGhoaEyMDA1LTExLTIxDQo=
^ permalink raw reply
* Strange results with changing HZ
From: Wojciech Kromer @ 2005-11-21 7:44 UTC (permalink / raw)
To: linuxppc-embedded
My system is:
- 2.4.25 kernel from denx.de
- uclibc (gcc 3.4.2) + busybox
- changed HZ to 1000
- rebuild kernel only
AFAIR there souldn't be any need to recompile user apps.
I have strange results.
Sleep and timeout selects works fine, but alarm functions seems to be
too fast.
For example included program or ping waits too short.
it is OK:
# time alarm_test
alarm fired after 0.099166s
real 0m 0.11s
user 0m 0.00s
sys 0m 0.00s
#
# time sleep 1
real 0m 1.01s
user 0m 0.00s
sys 0m 0.00s
# time sleep 10
real 0m 10.01s
user 0m 0.00s
sys 0m 0.00s
but:
# alarm_test
alarm fired after 0.099709s
# alarm_test
alarm fired after 0.099710s
------------------------------------ alarm_test.c :
#include <stdio.h>
#include <signal.h>
#include <unistd.h>
#include <sys/time.h>
static void sighand(int sig)
{
}
int main()
{
struct timeval tv1, tv2;
sigset_t set;
sigfillset(&set);
sigdelset(&set, SIGALRM);
sigdelset(&set, SIGINT);
signal(SIGALRM, sighand);
gettimeofday(&tv1, NULL);
alarm(1);
sigsuspend(&set);
gettimeofday(&tv2, NULL);
tv1.tv_sec = tv2.tv_sec - tv1.tv_sec - (tv2.tv_usec < tv1.tv_usec);
tv1.tv_usec = tv2.tv_usec - tv1.tv_usec + (tv2.tv_usec < tv1.tv_usec) *
1000000;
printf("alarm fired after %ld.%06lds\n",
tv1.tv_sec, tv1.tv_usec);
return 0;
}
^ permalink raw reply
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