11 years ago[POWERPC] Add of_device_is_available function
Josh Boyer [Wed, 26 Mar 2008 13:33:14 +0000]
[POWERPC] Add of_device_is_available function

IEEE 1275 defined a standard "status" property to indicate the operational
status of a device.  The property has four possible values: okay, disabled,
fail, fail-xxx.  The absence of this property means the operational status
of the device is unknown or okay.

This adds a function called of_device_is_available that checks the state
of the status property of a device.  If the property is absent or set to
either "okay" or "ok", it returns 1.  Otherwise it returns 0.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Enable CONFIG_FORCE_MAX_ZONEORDER for all PowerPC, and make selectable
Timur Tabi [Tue, 25 Mar 2008 21:35:32 +0000]
[POWERPC] Enable CONFIG_FORCE_MAX_ZONEORDER for all PowerPC, and make selectable

This enables the FORCE_MAX_ZONEORDER Kconfig option for all PowerPC
systems.  Previously, it was enabled only for 64-bit systems.  We also
make the option selectable from the menu, so that the user can specify
different values.  This is useful for 32-bit systems that need to
allocate more than 4MB of physically contiguous memory.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Use __SPIN_LOCK_UNLOCKED macro in mpc52xx_set_psc_clkdiv
Robert P. J. Day [Sat, 15 Mar 2008 17:27:07 +0000]
[POWERPC] Use __SPIN_LOCK_UNLOCKED macro in mpc52xx_set_psc_clkdiv

__SPIN_LOCK_UNLOCKED is newer and is not deprecated.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Fix kernel panic in arch_arm_kprobe
Ionut Nicu [Wed, 5 Mar 2008 16:12:54 +0000]
[POWERPC] Fix kernel panic in arch_arm_kprobe

The code in arch_arm_kprobe was trying to set a breakpoint which
resulted in a page fault because the kernel text pages were write
protected.  Disable the write protect when CONFIG_KPROBES is defined.

Signed-off-by: Ionut Nicu <ionut.nicu@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Add hand-coded assembly strcmp
Steven Rostedt [Fri, 29 Feb 2008 16:04:57 +0000]
[POWERPC] Add hand-coded assembly strcmp

We have an assembly version of strncmp for the bootwrapper, but not
for the kernel, so we end up using the C version in the kernel.  This
takes the strncmp code from the bootup and copies it to the kernel
proper, adding two instructions so it copes correctly with len==0.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Replace logical-AND by bit-AND in pci_process_ISA_OF_ranges()
Roel Kluin [Mon, 28 Jan 2008 10:06:55 +0000]
[POWERPC] Replace logical-AND by bit-AND in pci_process_ISA_OF_ranges()

Replace logical "&&" by bit "&" for ISA_SPACE_MASK.

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] 4xx: Add Canyonlands and Yosemite to multi-board defconfig
Josh Boyer [Sat, 5 Apr 2008 23:02:31 +0000]
[POWERPC] 4xx: Add Canyonlands and Yosemite to multi-board defconfig

Include the newly added Canyonlands and Yosemite ports in the mutli-board
440 defconfig.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Use machine_device_initcall() for warp_nand
Valentine Barshak [Fri, 4 Apr 2008 18:24:37 +0000]
[POWERPC] 4xx: Use machine_device_initcall() for warp_nand

With a multiplatform kernel, once built we always have warp_setup_nand_flash()
called and NDFC probed, no matter what machine we actually run on. This
potentially can cause problems (such as kernel crash), since NDFC is probed at
a warp-predefined address.

Using machine_device_initcall() NAND devices are registered if we run on a warp only.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Change dts files to support jumbo frames
Stefan Roese [Thu, 3 Apr 2008 14:38:11 +0000]
[POWERPC] 4xx: Change dts files to support jumbo frames

This patch changes the "max-frame-size" property to 9000 for all gbit
enabled 4xx boards. All those ports generally support jumbo frames, so
let's give the user a chance to enable it.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Some EMAC related changes in Canyonlands & Glacier dts files
Stefan Roese [Thu, 3 Apr 2008 13:35:06 +0000]
[POWERPC] 4xx: Some EMAC related changes in Canyonlands & Glacier dts files

This patch fixes some problems in the Canyonlands 460EX and Glacier 460GT
dts files:

- Add "mdio-device = <&EMAC0>" to all all EMAC's except for EMAC0 itself
  (the 460EX/GT only can access the PHY via the EMAC0 instance)
- Add TAH support to Canyonlands dts

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Create common ppc4xx_reset_system() in ppc4xx_soc.c
Stefan Roese [Thu, 27 Mar 2008 14:43:31 +0000]
[POWERPC] 4xx: Create common ppc4xx_reset_system() in ppc4xx_soc.c

This patch creates a common system reset routine for all 40x and 44x
systems. Previously only a 44x routine existed. But since this system
reset via the debug control register is common for 40x and 44x let's
share this code for all those platforms in ppc4xx_soc.c.

This patch also enables CONFIG_4xx_SOC for all 40x and 44x platforms.

Tested on Kilauea (405EX) and Canyonlands (440EX).

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] bootwrapper: Add a firmware-independent simpleboot target.
Grant Likely [Tue, 18 Mar 2008 17:07:43 +0000]
[POWERPC] bootwrapper: Add a firmware-independent simpleboot target.

This target produces a flat binary rather than an ELF file,
fixes the entry point at the beginning of the image, and takes
a complete device tree with no fixups needed.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] of_serial: Fix possible null dereference.
Stephen Neuendorffer [Wed, 2 Apr 2008 16:52:13 +0000]
[POWERPC] of_serial: Fix possible null dereference.

The of_serial driver queries the current-speed property and attempts
to use it to register the custom_divisor property of the uart_port.
However, if current-speed is not set, then this code will dereference
a bad pointer.  The fix is to only set custom_divisor when a
current-speed property appears in the device tree.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Signed-off-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Fix PESDRn_UTLSET1 register setup on 460EX/GT
Stefan Roese [Tue, 1 Apr 2008 13:45:00 +0000]
[POWERPC] 4xx: Fix PESDRn_UTLSET1 register setup on 460EX/GT

The patch fixes a bug, where the PESDRn_UTLSET1 register was setup
wrongly resulting in a non working PCIe port 1. With this fix both
PCIe ports work fine again.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Only reset PCIe PHY on 405EX systems when no link is detected
Stefan Roese [Thu, 27 Mar 2008 15:34:50 +0000]
[POWERPC] 4xx: Only reset PCIe PHY on 405EX systems when no link is detected

Since the arch/powerpc PCI subsystem now does a complete re-assignment of
the resources, we can move from the unconditional PCIe PHY reset to the
conditional version. Now the PHY is only reset, if no link is established yet.
An additional PHY reset (one is already done in U-Boot) leads to problems
with some Atheros PCIe boards and some HP FPGA PCIe designs.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] add target for building .dtb files
Grant Likely [Mon, 24 Mar 2008 22:52:46 +0000]
[POWERPC] add target for building .dtb files

Call dtc from the Makefile instead of the wrapper script so that the dt
blobs can be generated with a simple make invocation.

Using this patch allows board ports to trigger automatic building of .dtb
files by adding them to the image-y target list.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] ppc: Remove redundant display of free swap space in show_mem()
Johannes Weiner [Fri, 28 Mar 2008 21:21:10 +0000]
[POWERPC] ppc: Remove redundant display of free swap space in show_mem()

show_mem() has no need to print the amount of free swap space manually
because show_free_areas() does this already and is called by the
former.

The two outputs only differ in text formatting:

  printk("Free swap  = %lukB\n", ...);
  printk("Free swap:       %6ldkB\n", ...);

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Remove redundant display of free swap space in show_mem()
Johannes Weiner [Fri, 28 Mar 2008 21:21:09 +0000]
[POWERPC] Remove redundant display of free swap space in show_mem()

show_mem() has no need to print the amount of free swap space manually
because show_free_areas() does this already and is called by the
former.

The two outputs only differ in text formatting:

  printk("Free swap  = %lukB\n", ...);
  printk("Free swap:       %6ldkB\n", ...);

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Use FIELD_SIZEOF in drivers/block/viodasd.c
Julia Lawall [Fri, 28 Mar 2008 21:21:08 +0000]
[POWERPC] Use FIELD_SIZEOF in drivers/block/viodasd.c

Robert P.J. Day proposed to use the macro FIELD_SIZEOF in replace of code
that matches its definition.

The modification was made using the following semantic patch
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@haskernel@
@@

#include <linux/kernel.h>

@depends on haskernel@
type t;
identifier f;
@@

- (sizeof(((t*)0)->f))
+ FIELD_SIZEOF(t, f)

@depends on haskernel@
type t;
identifier f;
@@

- sizeof(((t*)0)->f)
+ FIELD_SIZEOF(t, f)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] ppc: Replace remaining __FUNCTION__ occurrences
Harvey Harrison [Fri, 28 Mar 2008 21:21:07 +0000]
[POWERPC] ppc: Replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Replace remaining __FUNCTION__ occurrences
Harvey Harrison [Fri, 28 Mar 2008 21:21:07 +0000]
[POWERPC] Replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Add kernel parameter to set l3cr for MPC745x
Robert Brose [Fri, 28 Mar 2008 20:20:23 +0000]
[POWERPC] Add kernel parameter to set l3cr for MPC745x

Old-world powermacs don't set L2CR or L3CR on processor upgrade cards.
This simple patch allows the setting of L3CR via a kernel parameter
(like the existing kernel parameter to set L2CR).

Signed-off-by: Robert Brose <bob@qbjnet.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] PS3: Split device setup for static vs. dynamic devices
Geert Uytterhoeven [Fri, 28 Mar 2008 16:53:38 +0000]
[POWERPC] PS3: Split device setup for static vs. dynamic devices

Split the device setup code in ps3_register_repository_device() in two
routines:
  1. ps3_setup_static_device(), to handle the setup of static devices in the
     PS3 repository, which can be __init,
  2. ps3_setup_dynamic_device(), to handle the setup of storage devices that
     may appear later in the PS3 repository.

This fixes a few section mismatch warnings.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] arch_add_memory() cannot be __devinit
Geert Uytterhoeven [Fri, 28 Mar 2008 16:10:50 +0000]
[POWERPC] arch_add_memory() cannot be __devinit

WARNING: vmlinux.o(.text+0xb41b0): Section mismatch in reference from the
function .add_memory() to the function .devinit.text:.arch_add_memory()
The function .add_memory() references
the function __devinit .arch_add_memory().
This is often because .add_memory lacks a __devinit
annotation or the annotation of .arch_add_memory is wrong.

arch_add_memory() is also not __devinit on other architectures

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] move_device_tree() should be __init
Geert Uytterhoeven [Fri, 28 Mar 2008 16:07:45 +0000]
[POWERPC] move_device_tree() should be __init

WARNING: vmlinux.o(.text+0x1e4c0): Section mismatch in reference from the
function .move_device_tree() to the function .init.text:.lmb_alloc_base()
The function .move_device_tree() references
the function __init .lmb_alloc_base().
This is often because .move_device_tree lacks a __init
annotation or the annotation of .lmb_alloc_base is wrong.

move_device_tree() is called from early_init_devtree() only, which is __init

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Add error return from htab_remove_mapping()
Badari Pulavarty [Fri, 28 Mar 2008 00:37:21 +0000]
[POWERPC] Add error return from htab_remove_mapping()

If the platform doesn't support hpte_removebolted(), gracefully
return failure rather than success.

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] PS3: Gelic network driver Wake-on-LAN support
Masakazu Mokuno [Thu, 27 Mar 2008 00:39:31 +0000]
[POWERPC] PS3: Gelic network driver Wake-on-LAN support

Add Wake-on-LAN support to the PS3 Gelic network driver.
Other OS WOL support was introduced in PS3 system firmware 2.20.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] PS3: Sys-manager Wake-on-LAN support
Geoff Levand [Thu, 27 Mar 2008 00:39:04 +0000]
[POWERPC] PS3: Sys-manager Wake-on-LAN support

Add Wake-on-LAN support to the PS3 system-manager.  Other OS WOL
support was introduced in PS3 system firmware 2.20.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] PS3: Save power in busy loops on halt
Geert Uytterhoeven [Thu, 27 Mar 2008 00:38:31 +0000]
[POWERPC] PS3: Save power in busy loops on halt

PS3 save power on halt:
  - Replace infinite busy loops by smarter loops calling
    lv1_pause() to save power.
  - Add ps3_halt() and ps3_sys_manager_halt().
  - Add __noreturn annotations.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] PS3: Bootwrapper improvements
Geoff Levand [Thu, 27 Mar 2008 20:41:45 +0000]
[POWERPC] PS3: Bootwrapper improvements

Improve the debugging support of the PS3 bootwraper code:

 o Increase the size of the PS3 bootwrapper overlay from 256 to 512 bytes to
   allow for more debugging code in the overlay.
 o Use the dot symbol to set the size of __system_reset_overlay.  The
   assembler will then emit an error if the overlay code is too big.
 o Remove some unused instructions.
 o Update the text describing the PS3 bootwrapper overlay.
 o Add a check for null pointer writes.
 o Change hcall return value from s64.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] PS3: Add ps3_get_speid routine
Takashi Yamamoto [Thu, 27 Mar 2008 00:37:38 +0000]
[POWERPC] PS3: Add ps3_get_speid routine

Add a new routine ps3_get_speid() which returns the logical
SPE ID.  This ID is needed for profiling support.

Signed-off-by: Takashi Yamamoto <TakashiA.Yamamoto@jp.sony.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] PS3: Fix unlikely typo in ps3_get_irq
Roel Kluin [Thu, 27 Mar 2008 00:37:18 +0000]
[POWERPC] PS3: Fix unlikely typo in ps3_get_irq

Fix a typo bug 'unlikely(x) == y' and add an unlikely() call to
an unlikely code path in the PS3 interrupt routine ps3_get_irq().

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years agoMerge branch 'powerpc-next' of master.kernel.org:/pub/scm/linux/kernel/git/galak...
Paul Mackerras [Tue, 1 Apr 2008 09:34:26 +0000]
Merge branch 'powerpc-next' of /linux/kernel/git/galak/powerpc

11 years ago[POWERPC] 85xx: Emerson KSI8560 device tree
Alexandr Smirnov [Thu, 6 Mar 2008 15:14:51 +0000]
[POWERPC] 85xx: Emerson KSI8560 device tree

Add device tree file for Emerson KSI8560 board.

Signed-off-by: Alexandr Smirnov <asmirnov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

11 years ago[POWERPC] 85xx: Emerson KSI8560 default config
Alexandr Smirnov [Tue, 4 Mar 2008 16:36:52 +0000]
[POWERPC] 85xx: Emerson KSI8560 default config

Add default config for Emerson KSI8560 board.

Signed-off-by: Alexandr Smirnov <asmirnov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

11 years ago[POWERPC] 85xx: Emerson KSI8560 bootwrapper
Alexandr Smirnov [Tue, 4 Mar 2008 16:34:26 +0000]
[POWERPC] 85xx: Emerson KSI8560 bootwrapper

Add boot wrapper for Emerson KSI8560 board.

Signed-off-by: Alexandr Smirnov <asmirnov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

11 years ago[POWERPC] 85xx: Emerson KSI8560 base support
Alexandr Smirnov [Thu, 6 Mar 2008 15:17:16 +0000]
[POWERPC] 85xx: Emerson KSI8560 base support

The KSI8560 is a single compact, mid-, or full-size Advanced Mezzanine Card
(AdvancedMC™) based on the Freescale™ Semiconductor MPC8560 PowerQUICC III™
microprocessor. This product will serve in data and signaling applications such
as signaling gateways (SGW) and softswitch signaling interface cards.

The board has altera maxii CPLD, that is used to obtain and manage board
configuration. Also there are two SCC UART serial consoles and FCC ethernet,
that is routed to the front panel, while other ethernet controlers (TSEC's) are
routed to the backplane.

Signed-off-by: Alexandr Smirnov <asmirnov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

11 years ago[POWERPC] 4xx: Add L2 cache node to AMCC Taishan dts file
Stefan Roese [Wed, 26 Mar 2008 11:42:55 +0000]
[POWERPC] 4xx: Add L2 cache node to AMCC Taishan dts file

This patch adds the L2 cache node to the Taishan 440GX dts file.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add PPC4xx L2-cache support (440GX)
Stefan Roese [Wed, 26 Mar 2008 11:39:50 +0000]
[POWERPC] 4xx: Add PPC4xx L2-cache support (440GX)

This patch adds support for the 256k L2 cache found on some IBM/AMCC
4xx PPC's. It introduces a common 4xx SoC file (sysdev/ppc4xx_soc.c)
which currently "only" adds the L2 cache init code. Other common 4xx
stuff can be added later here.

The L2 cache handling code is a copy of Eugene's code in arch/ppc
with small modifications.

Tested on AMCC Taishan 440GX.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add "amcc, haleakala" to the toplevel compatible property
Stefan Roese [Thu, 20 Mar 2008 10:33:39 +0000]
[POWERPC] 4xx: Add "amcc, haleakala" to the toplevel compatible property

Currently Haleakala uses the Kilauea platform code. This patch adds
"haleakala" to the compatible property, in case later kernel versions
will introduce a Haleakala platform code.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add AMCC Glacier 460GT eval board dts
Stefan Roese [Thu, 20 Mar 2008 06:34:24 +0000]
[POWERPC] 4xx: Add AMCC Glacier 460GT eval board dts

The patch adds the Glacier dts. The Glacier is nearly identical to the
Canyonlands (460EX). Here the differences:

- 4 ethernet ports instead of 2
- no SATA port
- no USB port

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] Xilinx: hwicap: Use fixed device major.
Stephen Neuendorffer [Mon, 17 Mar 2008 17:36:32 +0000]
[POWERPC] Xilinx: hwicap: Use fixed device major.

Major 259 has been assigned by lanana.  Use it.  Also, publish
/dev/icap[0-k] as the device entries, and register platform devices
named 'icap' to be consistent.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] Xilinx: hwicap: Verify sync before reading idcode.
Stephen Neuendorffer [Mon, 17 Mar 2008 17:36:31 +0000]
[POWERPC] Xilinx: hwicap: Verify sync before reading idcode.

It appears that in some cases, the sync word might not be recognized
by the hardware correctly.  If this happens, then attempting to read
from the port results in an unrecoverable error because of the design
of the FPGA core.  This patch updates the code to check the status of
the device before reading the IDCODE, in order to avoid entering this
unrecoverable state.  This patch also adds additional NOOP commands
into the sychronization sequence, which appears to be necessary to
avoid the condition on some hardware.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] Xilinx: hwicap: Refactor status handling code.
Stephen Neuendorffer [Mon, 17 Mar 2008 17:36:30 +0000]
[POWERPC] Xilinx: hwicap: Refactor status handling code.

Both the buffer-based and fifo-based icap cores have a status
register.  Previously, this was only used internally to check whether
transactions have completed.  However, the status can be useful to the
main driver as well.  This patch exposes these status functions to the
main driver along with some masks for the differnet bits.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add TAH support to taishan dts
Stefan Roese [Thu, 13 Mar 2008 16:00:03 +0000]
[POWERPC] 4xx: Add TAH support to taishan dts

This patch adds TAH (TCP/IP Acceleration Hardware) support to the
taishan 440GX dts. It depends on the NEWEMAC/tah patch that adds the
compatible "ibm,tah" property to the matching table.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Use dcri_clrset() for PCIe indirect dcr read/modify/write access
Valentine Barshak [Thu, 6 Mar 2008 14:34:52 +0000]
[POWERPC] 4xx: Use dcri_clrset() for PCIe indirect dcr read/modify/write access

Use dcri_clrset() for PCIe SDR0 read/modify/write access.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add dcri_clrset() for locked read/modify/write functionality
Valentine Barshak [Wed, 5 Mar 2008 18:38:04 +0000]
[POWERPC] 4xx: Add dcri_clrset() for locked read/modify/write functionality

This adds dcri_clrset() macro which does read/modify/write
on indirect dcr registers while holding indirect dcr lock.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add bootwrapper for AMCC Yosemite board
Josh Boyer [Fri, 7 Mar 2008 03:15:52 +0000]
[POWERPC] 4xx: Add bootwrapper for AMCC Yosemite board

Add the cuboot wrapper for the AMCC 440EP Yosemite board

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add platform support for the AMCC Yosemite board
Josh Boyer [Fri, 7 Mar 2008 03:15:42 +0000]
[POWERPC] 4xx: Add platform support for the AMCC Yosemite board

The AMCC 440EP Yosemite board is very similar to the original AMCC Bamboo
board.  This adds a YOSEMITE option to Kconfig, and reuses the existing
bamboo board support in the kernel.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add AMCC 440EP Yosemite DTS
Josh Boyer [Fri, 7 Mar 2008 03:15:07 +0000]
[POWERPC] 4xx: Add AMCC 440EP Yosemite DTS

This adds a DTS file for the AMCC 440EP Yosemite board.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add Canyonlands defconfig file
Stefan Roese [Sat, 23 Feb 2008 21:08:17 +0000]
[POWERPC] 4xx: Add Canyonlands defconfig file

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add 460EX PCIe support to 4xx pci driver
Stefan Roese [Sat, 23 Feb 2008 21:08:27 +0000]
[POWERPC] 4xx: Add 460EX PCIe support to 4xx pci driver

All this code is needed to properly initialize the 460EX PCIe host
bridge(s). We re-initialize all ports again, even though this has been done
in the bootloader (U-Boot) before. This way we make sure, that we always
run the latest init code in Linux and don't depend on code versions from
U-Boot.

Unfortunately all IBM/AMCC chips currently supported in this PCIe driver need
a different reset-/init-sequence.

Tested on AMCC Canyonlands eval board.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add Canyonlands DTS
Stefan Roese [Fri, 29 Feb 2008 16:25:29 +0000]
[POWERPC] 4xx: Add Canyonlands DTS

This dts source file for the AMCC 460EX Canyonlands evalutaion board

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add AMCC Canyonlands 460EX eval board support to platforms/44x
Stefan Roese [Sat, 23 Feb 2008 21:07:52 +0000]
[POWERPC] 4xx: Add AMCC Canyonlands 460EX eval board support to platforms/44x

Canyonlands is the AMCC 460EX eval board, featuring nearly all of the 460EX
interfaces:

- 1 * PCI (max 66MHz), 2 * PCIe (one 4-lane, one 1-lane)
- 2 * GBit Ethernet with TCP/IP acceleration
- USB 2.0 Host/Device OTG and Host interface
- SATA port

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] 4xx: Add AMCC 460EX/460GT support to cputable.c & cpu_setup_44x.S
Stefan Roese [Sat, 23 Feb 2008 21:07:41 +0000]
[POWERPC] 4xx: Add AMCC 460EX/460GT support to cputable.c & cpu_setup_44x.S

This patch adds basic support for the AMCC 460EX/460GT PPC's to arch/powerpc.
Currently those PPC's are still based on a 440 core and *not* a 460 core.

Here some basic features of those SoC's:

460EX:
- Up to 1.2GHz, 32kB L1 I-cache and D-cache, 256kB L2-cache, FPU
- 1 * PCI (max 66MHz), 2 * PCIe (one 4-lane, one 1-lane)
- 2 * GBit Ethernet with TCP/IP acceleration
- USB 2.0 Host/Device OTG and Host interface
- SATA controller
- Optional security feature

460GT (only changes to 460EX):
- 4 * GBit Ethernet with TCP/IP acceleration
- RapidIO
- No SATA
- No USB

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years ago[POWERPC] Start removing linux,network-index in favour of aliases
David Gibson [Tue, 26 Feb 2008 00:43:20 +0000]
[POWERPC] Start removing linux,network-index in favour of aliases

This patch alters the bootwrapper for a number of machines (roubhly
all 4xx based cuboot or treeboot platforms) to use aliases instead of
the linux,network-index hack to work out which MAC address to attach
to which ethernet device node.

The now obsolete linux,network-index properties are removed from the
corresponding device trees.  This won't break backwards compatiblity,
because in cases where this fixup code is relevant, the device tree is
part of the kernel image.

The references to linux,network-index are removed from
booting-without-of.txt.  Not only is it now deprecated, but as a hack
applicable only when the device tree blob and fixup code were in the
same image, this property never belonged in booting-without-of.txt
which describes the interface between the kernel and firmware or
bootloaders which produce a device tree.  By the time the device tree
reaches the kernel, all the MAC addresses must be fully filled in.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

11 years agoMerge branch 'linux-2.6'
Paul Mackerras [Tue, 25 Mar 2008 21:44:18 +0000]
Merge branch 'linux-2.6'

11 years ago[POWERPC] scanlog_init cleanup and minor fixes
Nathan Lynch [Sun, 23 Mar 2008 22:51:45 +0000]
[POWERPC] scanlog_init cleanup and minor fixes

scanlog_init() could use some love.

* properly return -ENODEV if this system doesn't support scan-log-dump
* don't printk if scan-log-dump not present; only older systems have it
* convert from create_proc_entry() to preferred proc_create()
* allocate zeroed data buffer
* fix potential memory leak of ent->data on failed create_proc_entry()
* simplify control flow

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Move a.out.h to header-y since it doesn't check __KERNEL__
Robert P. J. Day [Sat, 22 Mar 2008 19:05:43 +0000]
[POWERPC] Move a.out.h to header-y since it doesn't check __KERNEL__

Since a.out.h doesn't check the value of __KERNEL__, there's no point
in unifdef'ing it.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] pseries: phyp dump: Inform kdump when phyp-dump is loaded
Manish Ahuja [Sat, 22 Mar 2008 00:40:53 +0000]
[POWERPC] pseries: phyp dump: Inform kdump when phyp-dump is loaded

This adds /sys/kernel/phyp_dump_active so that kdump init scripts may
look for it and take appropriate action if this file is found.  This
file is only created when phyp_dump has been registered.

Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] pseries: phyp dump: Disable phyp-dump through boot-var
Manish Ahuja [Sat, 22 Mar 2008 00:38:59 +0000]
[POWERPC] pseries: phyp dump: Disable phyp-dump through boot-var

This adds a kernel command line option "phyp_dump", which takes a 0/1
value for disabling/ enabling phyp_dump at boot time.  Kdump can use
this on cmdline (phyp_dump=0) to disable phyp-dump during boot when
enabling itself.  This will ensure only one dumping mechanism is active
at any given time.

Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] pseries: phyp dump: Add Kconfig file option
Manish Ahuja [Fri, 21 Mar 2008 23:50:50 +0000]
[POWERPC] pseries: phyp dump: Add Kconfig file option

Add hypervisor-assisted dump to kernel config.

Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] pseries: phyp dump: Tracking memory range freed
Manish Ahuja [Fri, 21 Mar 2008 23:47:04 +0000]
[POWERPC] pseries: phyp dump: Tracking memory range freed

This tracks the size freed.  For now it does a simple rudimentary
calculation of the ranges freed.  The idea is to keep it simple at the
external shell script level and send in large chunks for now.

Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] pseries: phyp dump: Invalidate and print dump areas
Manish Ahuja [Fri, 21 Mar 2008 23:45:22 +0000]
[POWERPC] pseries: phyp dump: Invalidate and print dump areas

This adds routines to
a. invalidate dump
b. calculate region that is reserved and needs to be freed.  This is
   exported through sysfs interface.

Unregister has been removed for now as it wasn't being used.

Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] pseries: phyp dump: Debugging print routines
Manish Ahuja [Fri, 21 Mar 2008 23:44:05 +0000]
[POWERPC] pseries: phyp dump: Debugging print routines

Provide some basic debugging support.

Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] pseries: phyp dump: Register dump area
Manish Ahuja [Fri, 21 Mar 2008 23:43:15 +0000]
[POWERPC] pseries: phyp dump: Register dump area

Set up the actual dump header, register it with the hypervisor.

Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] pseries: phyp dump: Use sysfs to release reserved mem
Manish Ahuja [Fri, 21 Mar 2008 23:39:17 +0000]
[POWERPC] pseries: phyp dump: Use sysfs to release reserved mem

Check to see if there actually is data from a previously
crashed kernel waiting.  If so, allow user-space tools to
grab the data (by reading /proc/kcore).  When user-space
finishes dumping a section, it must release that memory
by writing to sysfs. For example,

  echo "0x40000000 0x10000000" > /sys/kernel/release_region

will release 256MB starting at the 1GB.  The released memory
becomes free for general use.

Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] pseries: phyp dump: Reserve and release memory
Manish Ahuja [Fri, 21 Mar 2008 23:37:08 +0000]
[POWERPC] pseries: phyp dump: Reserve and release memory

Initial patch for reserving memory in early boot, and freeing it
later.  If the previous boot had ended with a crash, the reserved
memory would contain a copy of the crashed kernel data.

Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] pseries: phyp dump: Documentation
Manish Ahuja [Fri, 21 Mar 2008 23:33:10 +0000]
[POWERPC] pseries: phyp dump: Documentation

Basic documentation for hypervisor-assisted dump.

Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] powerpc32: Remove asm-offsets ptrace cruft
Roland McGrath [Wed, 19 Mar 2008 21:07:51 +0000]
[POWERPC] powerpc32: Remove asm-offsets ptrace cruft

These items in asm-offsets.c are not used anywhere.  This removes them.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] arch/powerpc/platforms/iseries/pci.c: Use time_* macros
S.Çağlar Onur [Mon, 17 Mar 2008 09:36:26 +0000]
[POWERPC] arch/powerpc/platforms/iseries/pci.c: Use time_* macros

The functions time_before, time_before_eq, time_after, and
time_after_eq are more robust for comparing jiffies against other
values.

This implements usage of the time_after() macro, defined at
linux/jiffies.h, which deals with wrapping correctly.

Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Update wait_state_cycles in the VPA
Tony Breeds [Mon, 17 Mar 2008 05:23:29 +0000]
[POWERPC] Update wait_state_cycles in the VPA

The hypervisor can look at the value in the wait_state_cycles field of
the VPA for an estimate of how busy dedicated processors are.
Currently, as the kernel never touches this field, we appear to be
100% busy.  This records the duration the kernel is in powersave and
passes that to the HV to provide a reasonable indication of
utilisation.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Don't touch PT_DTRACE in exec
Roland McGrath [Mon, 17 Mar 2008 05:01:20 +0000]
[POWERPC] Don't touch PT_DTRACE in exec

The PT_DTRACE flag is meaningless and obsolete.
Don't touch it.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Really export empty_zero_page
Stephen Rothwell [Thu, 13 Mar 2008 05:20:31 +0000]
[POWERPC] Really export empty_zero_page

It was being protected by CONFIG_PPC32, but we want to export it on
64-bit also.  This moves it out of the ifdef.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] maple: Enable ipr driver in defconfig
Nathan Lynch [Wed, 12 Mar 2008 23:43:05 +0000]
[POWERPC] maple: Enable ipr driver in defconfig

Some machines supported by the maple platform have an Obsidian
controller which can't be used without enabling CONFIG_IPR and the
options on which it depends.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] maple: Kill fixup_maple_ide
Nathan Lynch [Wed, 12 Mar 2008 23:43:04 +0000]
[POWERPC] maple: Kill fixup_maple_ide

This function has been a no-op for about 18 months; it's there in
the history should anyone need to resurrect it.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] maple: Use platform name in define_machine()
Nathan Lynch [Wed, 12 Mar 2008 23:43:03 +0000]
[POWERPC] maple: Use platform name in define_machine()

Prevailing practice for define_machine() in powerpc is to use the
platform name when the platform has only one define_machine()
statement, but maple uses "maple_md".  This caused me some
head-scratching when writing some new code that uses
machine_is(maple).

Use "maple" instead of "maple_md".  There should not be any behavioral
change -- fixup_maple_ide() calls machine_is(maple) but the body of
the function is ifdef'd out.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years ago[POWERPC] Add 'model: ...' line to common show_cpuinfo()
Marian Balakowicz [Fri, 9 Nov 2007 17:11:43 +0000]
[POWERPC] Add 'model: ...' line to common show_cpuinfo()

Print out 'model' property of '/' node as a machine name
in generic show_cpuinfo() routine.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Tue, 25 Mar 2008 06:24:16 +0000]
Merge git://git./linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: Fix cut-and-paste error in rtl8150.c
  USB: ehci: stop vt6212 bus hogging
  USB: sierra: add another device id
  USB: sierra: dma fixes
  USB: add support for Motorola ROKR Z6 cellphone in mass storage mode
  USB: isd200: fix memory leak in isd200_get_inquiry_data
  USB: pl2303: another product ID
  USB: new quirk flag to avoid Set-Interface
  USB: fix gadgetfs class request delegation

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
Linus Torvalds [Tue, 25 Mar 2008 06:23:39 +0000]
Merge git://git./linux/kernel/git/gregkh/driver-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
  driver core: debug for bad dev_attr_show() return value.
  UIO: add pgprot_noncached() to UIO mmap code

11 years agoPCI: revert "pcie: utilize pcie transaction pending bit"
Andrew Morton [Mon, 17 Mar 2008 21:21:18 +0000]
PCI: revert "pcie: utilize pcie transaction pending bit"

Revert as it is reported to cause problems for people.

commit 4348a2dc49f9baecd34a9b0904245488c6189398
Author: Shaohua Li <shaohua.li@intel.com>
Date:   Wed Oct 24 10:45:08 2007 +0800

    pcie: utilize pcie transaction pending bit

    PCIE has a mechanism to wait for Non-Posted request to complete. I think
    pci_disable_device is a good place to do this.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Due to the regression reported at
http://bugzilla.kernel.org/show_bug.cgi?id=10065

Cc: Shaohua Li <shaohua.li@intel.com>
Cc: Soeren Sonnenburg <kernel@nn7.de>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoPCI: iova: lockdep false alarm fix
Mark Gross [Tue, 4 Mar 2008 22:59:31 +0000]
PCI: iova: lockdep false alarm fix

lockdep goes off on the iova copy_reserved_iova() because it and a function
it calls grabs locks in the from, and the to of the copy operation.

The function grab locks of the same lock classes triggering the warning.  The
first lock grabbed is for the constant reserved areas that is never accessed
after early boot.  Technically you could do without grabbing the locks for the
"from" structure its copying reserved areas from.

But dropping the from locks to me looks wrong, even though it would be ok.

The affected code only runs in early boot as its setting up the DMAR
engines.

This patch gives the reserved_ioval_list locks special lockdep classes.

Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agodriver core: debug for bad dev_attr_show() return value.
Andrew Morton [Tue, 4 Mar 2008 23:09:07 +0000]
driver core: debug for bad dev_attr_show() return value.

Try to find the culprit who caused
http://bugzilla.kernel.org/show_bug.cgi?id=10150

Cc: <balajirrao@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUIO: add pgprot_noncached() to UIO mmap code
Jean-Samuel Chenard [Fri, 14 Mar 2008 10:28:36 +0000]
UIO: add pgprot_noncached() to UIO mmap code

Mapping of physical memory in UIO needs pgprot_noncached() to ensure
that IO memory is not cached. Without pgprot_noncached(), it (accidentally)
works on x86 and arm, but fails on PPC.

Signed-off-by: Jean-Samuel Chenard <jsamch@gmail.com>
Signed-off-by: Hans J Koch <hjk@linutronix.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: Fix cut-and-paste error in rtl8150.c
Robert P. J. Day [Mon, 10 Mar 2008 00:44:52 +0000]
USB: Fix cut-and-paste error in rtl8150.c

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: ehci: stop vt6212 bus hogging
Rene Herman [Thu, 20 Mar 2008 07:58:16 +0000]
USB: ehci: stop vt6212 bus hogging

The VIA VT6212 defaults to only waiting 1us between passes over EHCI's
async ring, which hammers PCI badly ... and by preventing other devices
from accessing the bus, causes problems like drops in IDE throughput,
a problem that's been bugging users of those chips for several years.

A (partial) datasheet for this chip eventually turned up, letting us
see how to make it use a VIA-specific register to switch over to the
the normal 10us value instead, as suggested by the EHCI specification
Solution noted by Lev A. Melnikovsky.

It's not clear whether this register exists on other VIA chips; we
know that it's ineffective on the vt8235.  So this patch only applies
to chips that seem to be incarnations of the (discrete) vt6212.

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Tested-by: Lev A. Melnikovsky <melnikovsky@mail.ru>
Tested-by: Alessandro Suardi <alessandro.suardi@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: sierra: add another device id
Kevin Lloyd [Fri, 14 Mar 2008 07:53:24 +0000]
USB: sierra: add another device id

Add support for the MC8775 device to the sierra driver.

Signed-off-by: Kevin Lloyd <klloyd@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: sierra: dma fixes
Oliver Neukum [Fri, 14 Mar 2008 07:53:24 +0000]
USB: sierra: dma fixes

while I was adding autosuspend to that driver I noticed a few issues.
You were having DMAed buffers as a part of a structure.
This will fail on platforms that are not DMA-coherent (arm, sparc, ppc, ...)
Please test this patch to fix it.

Signed-off-by: Kevin Lloyd <klloyd@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: add support for Motorola ROKR Z6 cellphone in mass storage mode
Constantin Baranov [Sun, 16 Mar 2008 20:04:23 +0000]
USB: add support for Motorola ROKR Z6 cellphone in mass storage mode

Motorola ROKR Z6 cellphone has bugs in its USB, so it is impossible to use
it as mass storage. Patch describes new "unusual" USB device for it with
FIX_INQUIRY and FIX_CAPACITY flags and new BULK_IGNORE_TAG flag.
Last flag relaxes check for equality of bcs->Tag and us->tag in
usb_stor_Bulk_transport routine.

Signed-off-by: Constantin Baranov <const@tltsu.ru>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: isd200: fix memory leak in isd200_get_inquiry_data
Boaz Harrosh [Mon, 17 Mar 2008 21:21:01 +0000]
USB: isd200: fix memory leak in isd200_get_inquiry_data

If the inquiry fails then the info structure on us->extra was not freed.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: pl2303: another product ID
Max Arnold [Thu, 20 Mar 2008 09:43:56 +0000]
USB: pl2303: another product ID

Device like this http://aldiga.com/english/A-100-USB-EDGE10.htm
contains Prolific 2303 chip.
Actually their site a bit outdated - I have AlDiga AL-11U
GSM/GPRS/EDGE modem and it works with pl2303 module after adding
corresponding product ID.

By default modem uses baud rate 460800.  GSM chipset - SIMCom SIM600,
quad band 850/900/1800/1900 MHz

Device info:

T:  Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  5 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=067b ProdID=0611 Rev= 0.00
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=pl2303
E:  Ad=81(I) Atr=03(Int.) MxPS=  10 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=83(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms

From: Max Arnold <lwarxx@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: new quirk flag to avoid Set-Interface
Alan Stern [Tue, 11 Mar 2008 14:20:12 +0000]
USB: new quirk flag to avoid Set-Interface

This patch (as1057) fixes a problem with the X-Rite/Gretag-Macbeth
Eye-One Pro display colorimeter; the device crashes when it receives a
Set-Interface request.  A new quirk (USB_QUIRK_NO_SET_INTF) is
introduced and a quirks entry is created for this device.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: fix gadgetfs class request delegation
Roy Hashimoto [Wed, 12 Mar 2008 21:55:31 +0000]
USB: fix gadgetfs class request delegation

gadgetfs (drivers/usb/gadget/inode.c) was not delegating all
non-device requests to userspace.  This patch makes the handling of
all request cases consistent.

Signed-off-by: Roy Hashimoto <hashimot@alumni.caltech.edu>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Linus Torvalds [Tue, 25 Mar 2008 03:35:48 +0000]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] mpc5200: Fix incorrect compatible string for the mdio node
  [POWERPC] Update some defconfigs

11 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Tue, 25 Mar 2008 03:02:32 +0000]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [libata] ahci: SB600 workaround is suspect... play it safe for now
  sata_promise: fix hardreset hotplug events, take 2
  libata: improve HPA error handling
  libata: assume no device is attached if both IDENTIFYs are aborted
  pata_it821x: use raw nbytes in check_atapi_dma
  libata: implement ata_qc_raw_nbytes()

11 years ago[libata] ahci: SB600 workaround is suspect... play it safe for now
Jeff Garzik [Tue, 25 Mar 2008 02:40:40 +0000]
[libata] ahci: SB600 workaround is suspect... play it safe for now

At least one report claims that a878539ef994787c447a98c2e3ba0fe3dad984ec
failed to solve lockups, whereas the old limit-to-32-bit trick worked.

Restore the 32-bit limit, but also leave the 255-sector limit in place,
because we know that's needed as well.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-linus
Linus Torvalds [Tue, 25 Mar 2008 02:32:38 +0000]
Merge git://git./linux/kernel/git/sam/kbuild-linus

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-linus:
  kbuild: soften modpost checks when doing cross builds

11 years agoMerge branch 'linux-2.6' into merge
Paul Mackerras [Tue, 25 Mar 2008 02:31:46 +0000]
Merge branch 'linux-2.6' into merge

11 years agosata_promise: fix hardreset hotplug events, take 2
Mikael Pettersson [Sun, 23 Mar 2008 17:41:01 +0000]
sata_promise: fix hardreset hotplug events, take 2

A Promise SATA controller will signal hotplug events when a hard
reset (COMRESET) is done on a port. These events aren't masked by
the driver, and the unexpected interrupts will cause a sequence
of failed reset attempts util libata's EH finally gives up.

This has not been a common problem so far, but the pending libata
hardreset-by-default changes makes it a critical issue.

The solution is to disable hotplug events before a reset, and to
reenable them afterwards. (Promise's driver does this too.)

This patch adds SATA-specific versions of ->freeze() and ->thaw()
that also disable and enable hotplug events. PATA ports continue
to use the old versions of ->freeze() and ->thaw().

Accesses to the hotplug register must be serialised via host->lock.
We rely on ap->lock == &ap->host->lock and that libata takes this
lock before ->freeze() and ->thaw(). Document this requirement.
The interrupt handler is adjusted so its hotplug register accesses
are inside the region protected by host->lock.

Tested on various chips (SATA300TX4, SATA300TX2plus, SATAII150TX4,
FastTrack TX4000) with various combinations of SATA and PATA disks,
with and without the pending hardreset-by-default changes.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

11 years agoMake printk() console semaphore accesses sensible
Linus Torvalds [Tue, 25 Mar 2008 02:25:08 +0000]
Make printk() console semaphore accesses sensible

The printk() logic on when/how to get the console semaphore was
unreadable, this splits the code up into a few helper functions and
makes it easier to follow what is going on.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>