Commit Graph

41 Commits

Author SHA1 Message Date
Russell King be093beb60 [ARM] pass reboot command line to arch_reset()
OMAP wishes to pass state to the boot loader upon reboot in order to
instruct it whether to wait for USB-based reflashing or not.  There is
already a facility to do this via the reboot() syscall, except we ignore
the string passed to machine_restart().

This patch fixes things to pass this string to arch_reset().  This means
that we keep the reboot mode limited to telling the kernel _how_ to
perform the reboot which should be independent of what we request the
boot loader to do.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-19 16:20:24 +00:00
Russell King dcea83adc6 [ARM] Hide ISA DMA API when ISA_DMA_API is unset
When ISA_DMA_API is unset, we're not implementing the ISA DMA API,
so there's no point in publishing the prototypes via asm/dma.h, nor
including the machine dependent parts of that API.

This allows us to remove a lot of mach/dma.h files which don't contain
any useful code.  Unfortunately though, some platforms put their own
private non-ISA definitions into mach/dma.h, so we leave these behind
and fix the appropriate #include statments.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-29 18:42:40 +00:00
Russell King 0114cb40d0 [ARM] iop3xx: avoid polluting the kernel's namespace
Avoid unnecessarily pollution of the kernel's namespace by avoiding
mach/hardware.h in mach/io.h, mach/memory.h and mach/timex.h.  Include
this header file where necessary.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-28 23:09:44 +00:00
Nicolas Pitre b5ee900258 [ARM] remove a common set of __virt_to_bus definitions
Let's provide an overridable default instead of having every machine
class define __virt_to_bus and __bus_to_virt to the same thing.  What
most platforms are using is bus_addr == phys_addr so such is the default.

One exception is ebsa110 which has no DMA what so ever, so the actual
definition is not important except only for proper compilation.  Also
added a comment about the special footbridge bus translation.

Let's also remove comments alluding to set_dma_addr which is not
(and should not) be commonly used.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-28 15:36:49 +00:00
Russell King fced80c735 [ARM] Convert asm/io.h to linux/io.h
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-06 12:10:45 +01:00
Russell King 0ba8b9b273 [ARM] cputype: separate definitions, use them
Add asm/cputype.h, moving functions and definitions from asm/system.h
there.  Convert all users of 'processor_id' to the more efficient
read_cpuid_id() function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-01 12:06:23 +01:00
Russell King a09e64fbc0 [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
This just leaves include/asm-arm/plat-* to deal with.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07 09:55:48 +01:00
Russell King be50972935 [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h.
Then, since asm/hardware.h only exists to include asm/arch/hardware.h,
update everything to directly include asm/arch/hardware.h and remove
asm/hardware.h.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07 09:40:08 +01:00
Riku Voipio 30be048679 leds: Add pca9532 platform data for Thecus N2100
Thecus N2100 has leds and a buzzer attached to a pca9532 controller.  Attach
the driver to the i2c bus and define the pca9532 pin coniguration for this
platform in n2100_leds.

With this patch, support for N2100 should be complete in mainline Linux.

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2008-07-23 09:49:56 +01:00
Jean Delvare 3760f73671 i2c: Convert most new-style drivers to use module aliasing
Based on earlier work by Jon Smirl and Jochen Friedrich.

Update most new-style i2c drivers to use standard module aliasing
instead of the old driver_name/type driver matching scheme. I've
left the video drivers apart (except for SoC camera drivers) as
they're a bit more diffcult to deal with, they'll have their own
patch later.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jon Smirl <jonsmirl@gmail.com>
Cc: Jochen Friedrich <jochen@scram.de>
2008-04-29 23:11:40 +02:00
Dan Williams c34002c102 iop: unconditionally initialize the ATU on platforms known to be 'hosts'
Platforms like iq80321 and iq80331 which may be host-bus-adapters
require 'iop3xx_init_atu=y' to be specified on the kernel command line.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-03-26 12:33:41 -07:00
Gordon Farquharson 4e7ffb6ab4 [ARM] 4865/1: Register the F75375 device in the GLAN Tank platform code
This patch adds the code required to register the F75375 device on the
GLAN Tank.

Signed-off-by: Gordon Farquharson <gordonfarquharson@gmail.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-03-20 15:59:30 +00:00
Gordon Farquharson b696b6b448 [ARM] 4770/1: GLAN Tank: correct physmap_flash_data width field
This patch is required, in conjunction with the patch submitted to
linux-mtd [1], to access the flash memory device in the GLAN Tank.

Without the patches, the boot log shows

physmap platform flash device: 00080000 at f0000000
...
physmap-flash physmap-flash.0: map_probe failed

whereas with the patches, the boot log shows

physmap platform flash device: 00080000 at f0000000
Found: ST M29W400DB
physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank
number of JEDEC chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
...
cmdlinepart partition parsing not available
Searching for RedBoot partition table in physmap-flash.0 at offset 0x70000
No RedBoot partition table detected in physmap-flash.0

The change made by this patch is required because the ST M29W400DB
flash memory chip in the GLAN Tank is used in 16 bit bus mode (~BYTE
pin is high when the board is powered on).

[1] http://lists.infradead.org/pipermail/linux-mtd/2008-January/020291.html

Signed-off-by: Gordon Farquharson <gordonfarquharson@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-01-26 14:58:55 +00:00
Martin Michlmayr bd7b885863 [ARM] 4732/1: GLAN Tank: register rtc-rs5c372 i2c device
Use the new i2c framework to load rtc-rs5c372 for the GLAN Tank.

Tested-by: Gordon Farquharson <gordonfarquharson@gmail.com>

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-01-26 14:37:57 +00:00
Riku Voipio 9aa6933892 hwmon: (f75375s) On n2100 systems, set fans to full speed on boot
On thecus n2100, the bootloader does not setup fans to run. In order
to protect the user from frying their gear, start up fans on boot.

Signed-off-by: Riku Voipio <riku.voipio@movial.fi>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-11-08 08:42:46 -05:00
Arnaud Patard fe885fa237 [ARM] 4491/1: em7210 rtc clock
The commit d815461c7a in linus tree
converts the rtc-rs5c372 driver to a "new style" i2c driver.
Like commit c00593f6f8, this patch
register the rtc i2c device for the em7210 board.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-20 17:29:35 +01:00
Arnaud Patard a8135fcfd0 [ARM] 4476/1: EM7210/SS4000E support
This patch adds the basic support for the em7210 board. It is similar to
the iq31244 board and can be found on Intel "Baxter Creek" ss4000e nas.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-20 09:35:35 +01:00
Martin Michlmayr c00593f6f8 Thecus N2100: register rtc-rs5c372 i2c device
Use the new i2c framework to load rtc-rs5c372 for the Thecus N2100.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Tested-by: Voipio Riku <Riku.Voipio@movial.fi>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:08 -07:00
Dan Williams 2492c84518 iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver
Adds the platform device definitions and the architecture specific support
routines (i.e. register initialization and descriptor formats) for the
iop-adma driver.

Changelog:
* add support for > 1k zero sum buffer sizes
* added dma/aau platform devices to iq80321 and iq80332 setup
* fixed the calculation in iop_desc_is_aligned
* support xor buffer sizes larger than 16MB
* fix places where software descriptors are assumed to be contiguous, only
  hardware descriptors are contiguous for up to a PAGE_SIZE buffer size
* convert to async_tx
* add interrupt support
* add platform devices for 80219 boards
* do not call platform register macros in driver code
* remove switch() statements for compatible register offsets/layouts
* change over to bitmap based capabilities
* remove unnecessary ARM assembly statement
* checkpatch.pl fixes
* gpl v2 only correction
* phys move to dma_async_tx_descriptor

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2007-07-13 08:06:19 -07:00
Dan Williams d73d801177 [ARM] 4383/1: iop: fix usage of '__init' and 'inline' in iop files
WARNING: arch/arm/mach-iop13xx/built-in.o - Section mismatch: reference to
.init.text:iop13xx_pcie_map_irq from .text between 'iop13xx_pci_setup' (at
offset 0x7fc) and 'iop13xx_map_pci_memory'

While fixing this warning I also recalled Adrian Bunk's recommendation to
not use inline in .c files, as 'iop13xx_map_pci_memory' is needlessly
inlined.

Removing 'inline' uncovered some dead code so that is cleaned up as well.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-16 15:35:27 +01:00
Dan Williams e90ddd813d [ARM] 4348/4: iop3xx: Give Linux control over PCI initialization
Currently the iop3xx platform support code assumes that RedBoot is the
bootloader and has already initialized the ATU.  Linux should handle this
initialization for three reasons:

1/ The memory map that RedBoot sets up is not optimal (page_to_dma and
virt_to_phys return different addresses).  The effect of this is that using
the dma mapping API for the internal bus dma units generates pci bus
addresses that are incorrect for the internal bus.

2/ Not all iop platforms use RedBoot

3/ If the ATU is already initialized it indicates that the iop is an add-in
card in another host, it does not own the PCI bus, and should not be
re-initialized.

Changelog:
* rather than change nr_controllers to zero, simply do not call
  pci_common_init

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-03 14:02:48 +01:00
Dan Williams 094f127588 [ARM] 4271/1: iop32x: fix ep80219 detection (support iq80219 platforms)
An iq80219 is a board with an iq31244 layout and an 80219 processor.  It
breaks the current assumption that all 80219 processors run on ep80219
platforms.  This patch adds the "force_ep80219" option to the kernel to
override boot loaders that have passed in the iq31244 id, and adds the
MACHINE_START definition for ep80219.

[ patch assumes that EP80219 has been added to mach-types ]

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-03-17 22:33:26 +00:00
Russell King e80a0e6e7c [ARM] Merge remaining IOP code
Conflicts:
	include/asm-arm/arch-at91rm9200/entry-macro.S

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-20 10:52:43 +00:00
Russell King 3b0eb4a195 Merge the easy part of the IOP branch 2007-02-18 11:31:14 +00:00
Lennert Buytenhek 66822b2eef [ARM] 4058/2: iop32x: set ->broken_parity_status on n2100 onboard r8169 ports
On the n2100, both onboard r8169 ports exhibit PCI parity problems.
Set the ->broken_parity_status flag for both ports so that the r8169
drivers knows it should ignore error interrupts.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-18 10:59:51 +00:00
Dan Williams 3668b45d46 [ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx
* architecture specific details are handled in asm/arch/time.h
* ARCH_IOP13XX now selects PLAT_IOP
* as suggested by Lennert use ifdef CONFIG_XSCALE to skip the cp_wait on
XSC3

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-17 15:05:40 +00:00
Dan Williams 4434c5c7fd [ARM] 4186/1: iop: remove cp6_enable/disable routines
This functionality is replaced by cp6_trap

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-17 15:04:53 +00:00
Dan Williams 588ef76935 [ARM] 4184/1: iop: cp6 access handler (undef_hook)
Enable svc access to cp6 via an undefined instruction hook.  Do not enable
access for usr code.

This patch also makes iop13xx select PLAT_IOP, this requires a small change
to drivers/i2c/busses/i2c-iop3xx.c.

Per Lennert Buytenhek's note, the cp6 trap routine is moved to arch/arm/plat-iop
Per Nicolas Pitre's note, the cp_wait is skipped since the latency to
return to the faulting function is longer than cp_wait.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-14 15:21:24 +00:00
Russell King 10dd5ce28d [ARM] Remove compatibility layer for ARM irqs
set_irq_chipdata -> set_irq_chip_data
get_irq_chipdata -> get_irq_chip_data
do_level_IRQ -> handle_level_irq
do_edge_IRQ -> handle_edge_irq
do_simple_IRQ -> handle_simple_irq
irqdesc -> irq_desc
irqchip -> irq_chip

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-11-30 12:24:47 +00:00
Lennert Buytenhek 811c9a4b61 [ARM] 3913/1: n2100: fix IRQ routing for second ethernet port
The second ethernet port on the Thecus n2100 was incorrectly assigned
to XINT1 instead of the correct XINT3 (PCI INTB instead of INTD), which
caused that port to be non-functional.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-10-29 16:52:17 +00:00
Lennert Buytenhek 0c92e830bd [ARM] 3851/1: iop3xx: add io-data glantank support
Add support for the IO-Data GLAN Tank, from Martin Michlmayr.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:34:02 +01:00
Lennert Buytenhek e60d07b6cd [ARM] 3850/1: iop3xx: add thecus n2100 support
Add support for the Thecus n2100 (80219-based.)

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:34:01 +01:00
Lennert Buytenhek c852ac8044 [ARM] 3832/1: iop3xx: coding style cleanup
Since the iop32x code isn't iop321-specific, and the iop33x code isn't
iop331-specfic, do a s/iop321/iop32x/ and s/iop331/iop33x/, and tidy up
the code to conform to the coding style guidelines somewhat better.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:53 +01:00
Lennert Buytenhek c680b77efe [ARM] 3830/1: iop3xx: board support file cleanup
Revamp the iop3xx board support: move the support code for each iop
board type into its own file, start using platform serial and platform
physmap flash devices, switch to a per-board time tick rate, and get
rid of the ARCH_EP80219 and STEPD config options by doing the relevant
checks at run time.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:50 +01:00
Lennert Buytenhek 610300e8f4 [ARM] 3826/1: iop3xx: remove IOP3??_IRQ_OFS irq offset
Get rid of the unused IOP3??_IRQ_OFS irq offset define, start IRQ
numbering from zero.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:46 +01:00
Lennert Buytenhek 38ce73ebd7 [ARM] 3825/1: iop3xx: use cp6 enable/disable macros
Add CP6 enable/disable sequences to the timekeeping code and the IRQ
code.  As a result, we can't depend on CP6 access being enabled when
we enter get_irqnr_and_base anymore, so switch the latter over to
using memory-mapped accesses for now.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:45 +01:00
Lennert Buytenhek 863753a81e [ARM] 3823/1: iop3xx: switch iop32x/iop33x over to shared time code
Switch the iop32x and iop33x code over to the common time implementation,
and remove the (nearly identical) iop32x and iop33x time implementations.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:43 +01:00
Lennert Buytenhek 7e9740b115 [ARM] 3821/1: iop3xx: switch iop32x/iop33x over to shared pci code
Switch the iop32x and iop33x code over to the common PCI implementation,
and remove the (nearly identical) iop32x and iop33x PCI implementations.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:41 +01:00
Lennert Buytenhek e25d64f124 [ARM] 3819/1: iop3xx: factor out shared i2c code
Move the i2c bits shared between iop32x and iop33x to plat-iop/i2c.c
and include/asm-arm/hardware/iop3xx.h.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:38 +01:00
Lennert Buytenhek 7ae1f7ec52 [ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code
Introduce the arch/arm/plat-iop directory, for code shared between the
iop32x and iop33x, and move the common memory map setup bits there.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:37 +01:00
Lennert Buytenhek 3f7e5815f4 [ARM] 3817/1: iop3xx: split the iop3xx mach into iop32x and iop33x
Split the iop3xx mach type into iop32x and iop33x -- split the config
symbols, and move the code in the mach-iop3xx directory to the mach-iop32x
and mach-iop33x directories.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:36 +01:00