Commit Graph

205 Commits

Author SHA1 Message Date
Jeff Ohlstein
e14411da42 msm: add SMP support for msm
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2011-01-07 15:54:45 -08:00
Jeff Ohlstein
9f1890a5de msm: hotplug: support cpu hotplug on msm
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2011-01-07 15:54:44 -08:00
Jeff Ohlstein
94790ec25f msm: timer: SMP timer support for msm
The msm provides timer hardware that is private to each core. Each
timer has separate counter and match registers, so we create separate
clock_event_devices for each core. For the global clocksource, use
cpu 0's counter.

Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2011-01-07 15:54:44 -08:00
Stepan Moskovchenko
7b181446c6 msm: scm-boot: Support for setting cold/warm boot addresses
Add support for setting the cold boot address of core 1 and
the warm boot addresses of cores 0 and 1 using a secure
domain call.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2011-01-07 15:54:43 -08:00
Stephen Boyd
2a1eb58a86 msm: Secure Channel Manager (SCM) support
SCM is the protocol used to communicate between the secure and
non-secure code executing on the applications processor. The
non-secure side uses a physically contiguous buffer to pass
information to the secure side; where the buffer conforms to a
format that is agreed upon by both sides. The use of a buffer
allows multiple pending requests to be in flight on the secure
side. It also benefits use cases where the command or response
buffer contains large chunks of data.

Reviewed-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2011-01-07 15:54:43 -08:00
Linus Torvalds
3c0cb7c31c Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (416 commits)
  ARM: DMA: add support for DMA debugging
  ARM: PL011: add DMA burst threshold support for ST variants
  ARM: PL011: Add support for transmit DMA
  ARM: PL011: Ensure IRQs are disabled in UART interrupt handler
  ARM: PL011: Separate hardware FIFO size from TTY FIFO size
  ARM: PL011: Allow better handling of vendor data
  ARM: PL011: Ensure error flags are clear at startup
  ARM: PL011: include revision number in boot-time port printk
  ARM: vexpress: add sched_clock() for Versatile Express
  ARM i.MX53: Make MX53 EVK bootable
  ARM i.MX53: Some bug fix about MX53 MSL code
  ARM: 6607/1: sa1100: Update platform device registration
  ARM: 6606/1: sa1100: Fix platform device registration
  ARM i.MX51: rename IPU irqs
  ARM i.MX51: Add ipu clock support
  ARM: imx/mx27_3ds: Add PMIC support
  ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn()
  mx51: fix usb clock support
  MX51: Add support for usb host 2
  arch/arm/plat-mxc/ehci.c: fix errors/typos
  ...
2011-01-06 16:50:35 -08:00
Russell King
4073723acb Merge branch 'misc' into devel
Conflicts:
	arch/arm/Kconfig
	arch/arm/common/Makefile
	arch/arm/kernel/Makefile
	arch/arm/kernel/smp.c
2011-01-06 22:32:52 +00:00
Russell King
58daf18cdc Merge branch 'clksrc' into devel
Conflicts:
	arch/arm/mach-vexpress/v2m.c
	arch/arm/plat-omap/counter_32k.c
	arch/arm/plat-versatile/Makefile
2011-01-05 18:09:03 +00:00
Russell King
ff9c977248 ARM: MSM: update clock source registration
In d7e81c2 (clocksource: Add clocksource_register_hz/khz interface) new
interfaces were added which simplify (and optimize) the selection of the
divisor shift/mult constants.  Switch over to using this new interface.

Tested-By: Jeff Ohlstein <johlstei@codeaurora.org>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-22 22:44:33 +00:00
Pavankumar Kondeti
5155e2c70f MSM: Add USB support for MSM7x30
Add USB OTG, peripheral and host devices.  This patch also adds
usb_phy_clk which is required for resetting the PHY.  VBUS power up
and shutdown routines depends on PMIC module.  As PMIC driver is
unavailable, configure USB in peripheral only mode.

Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2010-12-16 13:53:39 -08:00
Pavankumar Kondeti
7032d512cf MSM: Add USB suport for QSD8x50
OTG driver takes care of putting hardware into low power mode.  Hence
make peripheral and host devices as children of OTG device and let
runtime PM takes care of notifying peripheral and host state to
OTG device.  VBUS power up and shutdown routines are implemented by
modem processor.  As RPC infrastructure is not available, configure
USB in peripheral only mode.

Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2010-12-16 13:53:39 -08:00
Daniel Walker
50bc0ef42c msm: initial framebuffer support
Initial framebuffer components. Add board-trout-panel.c
as well as platform parts to enable the framebuffer. This
code comes directly from Google's tree.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2010-12-15 14:13:18 -08:00
Daniel Walker
3a790bbe79 msm: add handling for clocks tagged as CLK_MINMAX
CLK_MINMAX is used to denote clocks that have a wide variation
in possible frequencies. This handling just sets the min and
max values to the same value.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2010-12-15 14:13:17 -08:00
Daniel Walker
304a09c325 msm: trout: change name of pmdh_clk to mddi_clk
This clock is used in the framebuffer driver as mddi_clk.
This just changes the name to match that. This also
mirrors a change in Google tree.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2010-12-15 14:13:17 -08:00
Daniel Walker
078dde9311 msm: add CLK_MINMAX to pmdh_clk
This adds in the CLK_MINMAX flag to the pmdh_clk since it's actual
a min/max clock instead of a single frequency clock.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2010-12-15 14:13:16 -08:00
Daniel Walker
940f2efc28 msm: trout: add gpio_to_irq
trout has gpiolib support and interrupt support, but was
missing the gpio_to_irq function. This adds that functions
which should allow proper translation.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2010-12-15 14:13:16 -08:00
Stepan Moskovchenko
294b2dea83 msm: iommu: Use the correct memory allocation flag
Change msm_iommu_map to use GFP_ATOMIC instead of
GFP_KERNEL due to the fact that the call occurs within
a spinlock-protected region.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2010-12-15 14:09:59 -08:00
Russell King
ff2e27ae0b ARM: GIC: consolidate gic_cpu_base_addr to common GIC code
Every architecture using the GIC has a gic_cpu_base_addr pointer for
GIC 0 for their entry assembly code to use to decode the cause of the
current interrupt.  Move this into the common GIC code.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14 19:21:42 +00:00
Russell King
b580b899dd ARM: GIC: provide a single initialization function for boot CPU
Provide gic_init() which initializes the GIC distributor and current
CPU's GIC interface for the boot (or single) CPU.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14 19:21:30 +00:00
Russell King
ad3b6993b9 ARM: SMP: pass an ipi number to smp_cross_call()
This allows us to use smp_cross_call() to trigger a number of different
software generated interrupts, rather than combining them all on one
SGI.  Recover the SGI number via do_IPI.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-03 08:26:30 +00:00
Stepan Moskovchenko
33069739d1 msm: iommu: Miscellaneous code cleanup
Remove some unneeded assignments and messages, restructure
a failure path in iova_to_phys, and make __flush_iotlb
return int in preparation for adding IOMMU clock control.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 16:12:00 -08:00
Stepan Moskovchenko
100832c9b6 msm: iommu: Support cache-coherent memory access
Add support for allowing IOMMU memory transactions to be
cache coherent, eliminating the need for software cache
management in certain situations. This can lead to
improvements in performance and power usage, assuming the
multimedia core's access pattern exhibits spatial locality
and that its working set fits into the cache.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 16:10:53 -08:00
Stepan Moskovchenko
08bd683978 msm: iommu: Definitions for extended memory attributes
Add the register field definitions and memory attribute
definitions that will be needed to support IOMMU
transactions with cache-coherent memory access.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 16:05:05 -08:00
Stepan Moskovchenko
0ab84745ef msm: iommu: Kconfig dependency for the IOMMU API
Make the IOMMU driver select the IOMMU API in the kernel
configuration.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 16:03:53 -08:00
Stepan Moskovchenko
00d4b2bb03 msm: iommu: Check if device is already attached
An IOMMU device can only be attached to one IOMMU domain at
any given time. Check whether the device is already
attached to a domain before allowing it to be attached to
another domain. If so, return busy.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 16:03:51 -08:00
Stepan Moskovchenko
2607b0a260 msm: iommu: Kconfig item for cacheable page tables
Add a Kconfig item to allow the IOMMU page tables to be
coherent in the L2 cache. This generally reduces IOTLB miss
latencies and has been shown to improve multimedia
performance.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 16:03:16 -08:00
Stepan Moskovchenko
f6f41eb9cc msm: iommu: Don't flush page tables if no devices attached
Don't flush the page tables on an IOMMU domain if there are
no IOMMU devices attached to the domain. The act of
attaching to the domain will cause an implicit flush of
those areas if the page tables are configured to not be L2
cacheable.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 14:04:21 -08:00
Stepan Moskovchenko
516cbc793e msm: iommu: Mark functions with the right section names
Mark the init and exit functions as __init and __exit where
appropriate.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 14:03:36 -08:00
Stepan Moskovchenko
e8952e3b32 msm: iommu: Support for the 2nd GFX core's IOMMU
Add the platform data and resources needed for the second
2D graphics core's IOMMU.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 14:02:56 -08:00
Stepan Moskovchenko
ff25ff842e msm: iommu: Revise GFX2D0 IOMMU contexts and M2V mappings
Based on recommendations from chip designers,
optimize the Machine ID to translation context
mappings for the first 2D core's IOMMU. Remove the
"gfx2d0_texv3_smmu" context, as it is no longer needed
under the new mapping scheme.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 14:01:32 -08:00
Stepan Moskovchenko
a5fcd5f59a msm: iommu: Revise GFX3D IOMMU contexts and M2V mappings
Based on recommendations from chip designers,
optimize the Machine ID to translation context
mappings for the 3D core's IOMMU. Remove the
the "gfx3d_smmu" context device, as it is no longer
needed under the new mapping scheme.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
[dwalker@codeaurora.org: updated commit text]
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 13:56:17 -08:00
Stepan Moskovchenko
12943325cd msm: iommu: Use more consistent naming in platform data
Rename all the IOMMU platform devices so that the names are
more consistent with the rest of the codebase.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 13:54:43 -08:00
Stepan Moskovchenko
c4bd2eebee msm: iomap: Addresses and IRQs for 2nd GFX core IOMMU
Add register addresses and IRQ numbers for the IOMMU used
for the second 2D graphics core.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 13:53:45 -08:00
Stepan Moskovchenko
23513c3b39 msm: iommu: Increase maximum MID size to 5 bits
On msm8x60, the MID field on the AXI connection to the
IOMMU can be up to five bits wide. Thus, allow the IOMMU
context platform data to map up to 32 MIDs.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 13:53:08 -08:00
Gregory Bean
70cc2c00d7 msm: gpio: Add irq support to v2 gpiolib.
Complete the MSM v2 gpio subsystem by adding irq_chip.

Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 13:51:52 -08:00
Gregory Bean
0cc2fc1f2f msm: gpio: Add v2 gpio support to MSM SoCs.
Beginning with the MSM8x60, the hardware block responsible for gpio
support changes.  Provide gpiolib support for the new v2 architecture.

Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Pavan Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-30 13:51:17 -08:00
Russell King
612275ad39 Merge branch 'for-russell' of git://codeaurora.org/quic/kernel/dwalker/linux-msm into devel-stable 2010-11-26 10:26:10 +00:00
Daniel Walker
89c3dedf47 arm: kconfig: enable SMP for MSM targets
This just adds ARCH_MSM_SCORPIONMP to allow SMP selection for
MSM. MSM is unique in that it doesn't enable SCU or TWD.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-22 12:37:37 -08:00
Anand Gadiyar
963fec4e0f ARM: 6484/1: fix compile warning in mm/init.c
Commit 7c63984b86 (ARM: do not define VMALLOC_END relative to PAGE_OFFSET)
changed VMALLOC_END to be an explicit value. Before this, it was
relative to PAGE_OFFSET and therefore converted to unsigned long
as PAGE_OFFSET is an unsigned long. This introduced the following
build warning. Fix this by changing the explicit defines of
VMALLOC_END to be unsigned long.

  CC      arch/arm/mm/init.o
arch/arm/mm/init.c: In function 'mem_init':
arch/arm/mm/init.c:606: warning: format '%08lx' expects type 'long unsigned int', but argument 12 has type 'unsigned int'

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Acked-by: Uwe Kleine-K <u.kleine-koenig@pengutronix.dee>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-21 22:05:56 +00:00
Pavankumar Kondeti
4916a10832 msm: io: Export __msm_ioremap
This is required for modules to use ioremap()

Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-19 09:56:58 -08:00
David Brown
44d4a4f784 msm: make constant unsigned long to correct format warning
Define VMALLOC_END as an unsigned long to match expected type.
Eliminates a warning:

arch/arm/mm/init.c: In function 'mem_init':
arch/arm/mm/init.c:606: warning: format '%08lx' expects type
   'long unsigned int', but argument 12 has type 'unsigned int'

Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-16 12:28:05 -08:00
David Brown
d2c5d2145f msm: smd: ifdef adjustment to remove unused variables
Put some variables inside of the same ifdef as the code that uses
them.

arch/arm/mach-msm/smd_debug.c: In function 'smsm_print_sleep_info':
arch/arm/mach-msm/smd_debug.c:274: warning: unused variable 'int_info'
arch/arm/mach-msm/smd_debug.c:273: warning: unused variable 'gpio'

Signed-off-by: David Brown <davidb@codeaurora.org>
[dwalker@codeaurora.org: changed the commit text a little.]
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-16 12:25:38 -08:00
David Brown
5d1394bb6b msm: sirc: remove some unused variables
Eliminate some unreferenced variables.

arch/arm/mach-msm/sirc.c:43: warning: 'save_type' defined but not used
arch/arm/mach-msm/sirc.c:44: warning: 'save_polarity' defined but not used

Signed-off-by: David Brown <davidb@codeaurora.org>
[dwalker@codeaurora.org: changed the commit text a little.]
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-16 12:23:58 -08:00
David Brown
9be58f317d msm: smd: Reduce driver log chatter
The MSM smd driver logs numerous messages during startup that are
useful for debug purposes.  Change some of these to pr_debug() to
match their purpose, and remove others that aren't really useful.

Cc: Brian Swetland <swetland@google.com>
Cc: Arve Hjønnevåg <arve@android.com>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-11-16 12:23:56 -08:00
Daniel Walker
4ee7a6c2d1 msm: Kconfig: drop unused config options
These two config options don't exist, and aren't ever going to.
So I simply delete them.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-10-29 15:56:17 -07:00
Daniel Walker
06125ff051 msm: fix compile failure when no debug uart is selected
If the board has a debug uart the user is given a choice of which
uart to use. The user can also select NONE, which means not to use one.
In most of our header files when NONE is selected nothing is defined
for MSM_DEBUG_UART_PHYS or MSM_DEBUG_UART_BASE. This causes a compile
failure in debug-macro.S which expect something to be defined there.

Example of the failure,

arch/arm/kernel/built-in.o: In function `hexbuf':
linux-2.6/arch/arm/kernel/debug.S:186: undefined reference to `MSM_DEBUG_UART_PHYS'
linux-2.6/arch/arm/kernel/debug.S:186: undefined reference to `MSM_DEBUG_UART_BASE'

This fixes the compile failure by adding an ifdef to debug-macro.S
that removes all the debug uart code in the case of NONE.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-10-29 15:56:16 -07:00
Daniel Walker
bcd72c3e0a msm: fix debug-macro.S build failure
Originally there was an ifdef case to handle when no debug uart
was selected. In commit 0ea1293009
that case was removed which causes the following build failure,

linux-2.6/arch/arm/kernel/debug.S: Assembler messages:
linux-2.6/arch/arm/kernel/debug.S:174: Error: bad instruction `addruart r1,r2'
linux-2.6/arch/arm/kernel/debug.S:176: Error: bad instruction `waituart r2,r3'
linux-2.6/arch/arm/kernel/debug.S:177: Error: bad instruction `senduart r1,r3'
linux-2.6/arch/arm/kernel/debug.S:178: Error: bad instruction `busyuart r2,r3'
linux-2.6/arch/arm/kernel/debug.S:190: Error: bad instruction `addruart r1,r2'

This is a partial revert to add back the case which was removed with
two caveats. First the API for the addruart macro was updated, and
the new addruart case now return 0xfff00000 so that a know IO mapping
is created instead of a random one.

Cc: Jeremy Kerr <jeremy.kerr@canonical.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jason Wang <jason77.wang@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-10-29 15:56:04 -07:00
Jeff Ohlstein
6f9419619e msm: timer: Decrease shift on timer clocksource
The shift of 24 causes the shift and multiply operation to sometimes
overflow, resulting in incorrect timer values and poor performance.

Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-10-27 14:24:02 -07:00
Vasiliy Kulikov
a86c44d48a arm: mach-msm: fix error handling in msm_iommu_probe()
msm_iommu_probe() didn't free mem_region and mapped IO.
Also if request_mem_region() failed then error handling
code dereferenced NULL pointer.

Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Acked-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-10-27 14:24:02 -07:00
Daniel Walker
efdfb2b118 msm: fix Kconfig target board selection
This prevents build failures since it's currently possible to select
8x50, 7x30, or 7x00 without selecting a specific board. These changes
just force a target selection, which is currently defaulting to the most
common one (7x30 only has one).

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-10-27 14:24:01 -07:00