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Cleanups on various subarchitectures
Cleanup patches for various ARM platforms and some of their associated
drivers, the bulk of these is for mach-91.
Arnd ended up pulling in the restart branch from Russell in order to
fix up some simple but annoying merge conflicts.
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (44 commits)
arm/at91: fix build of stamp9g20
ARM: u300: delete memory.h
MAINTAINERS: add maintainer entry for Picochip picoxcell
ARM: picoxcell: move io mappings to common.c
ARM: picoxcell: don't reserve irq_descs
ARM: picoxcell: remove mach/memory.h
ARM: at91: delete the pcontrol_g20_defconfig
arm/tegra: Remove code that's ifndef CONFIG_ARM_GIC
arm/tegra: remove unused defines
arm/tegra: fix variable formatting in makefile
ARM: davinci: vpif: move code to driver core header from platform
ARM: at91/gpio: fix display of number of irq setuped
ARM: at91/gpio: drop PIN_BASE
ARM: at91/udc: use gpio_is_valid to check the gpio
ARM: at91/ohci: use gpio_is_valid to check the gpio
ARM: at91/nand: use gpio_is_valid to check the gpio
ARM: at91/mmc: use gpio_is_valid to check the gpio
ARM: at91/ide: use gpio_is_valid to check the gpio
ARM: at91/pata: use gpio_is_valid to check the gpio
ARM: at91/soc: use gpio_is_valid to check the gpio
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Making SMP depend on (huge list of MACH_ and ARCH_ configs) is
bothersome to maintain and likely to lead to merge conflicts.
This patch moves the knowledge of which platforms are SMP-capable
to the individual machines. To enable this, a new HAVE_SMP config
option is introduced to allow machines to indicate that they can
run in a SMP configuration.
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
(for nomadik, ux500)
Acked-by: Tony Lindgren <tony@atomide.com>
(for omap)
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
(for exynos)
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
(for imx)
Acked-by: Olof Johansson <olof@lixom.net>
(for tegra)
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Add support for DEBUG_LL on the 8660 and 8960 development boards.
While we're here cleanup the uncompress.h code a bit. Avoid
the use of readl/writel as those are Linux specific APIs that
aren't guaranteed to work in the decompressor.
Cc: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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Now that DEBUG_LL is a choice we can move MSM's homegrown choice
menu to DEBUG_LL.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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git://codeaurora.org/quic/kernel/davidb/linux-msm into gpio/next
Conflicts:
drivers/gpio/Kconfig
drivers/gpio/Makefile
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Migrate the driver for the v7-based MSM chips into drivers/gpio. The
driver is unchanged, only moved.
Change-Id: I810db5b50b71cdca4e869aa0d0310f7f48781a55
Signed-off-by: David Brown <davidb@codeaurora.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
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Migrate the driver for the v6-based MSM chips into drivers/gpio. The
driver is unchanged, only moved.
Change-Id: I03ba597b95b4d62b42da112a8efac88d67aa40f9
Signed-off-by: David Brown <davidb@codeaurora.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
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This should ease finding similarities with different platforms,
with the intention of solving problems once in a generic framework
which everyone can use.
Compile-tested for MSM8X60.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Create a dedicated folder for iommu drivers, and move the base
iommu implementation over there.
Grouping the various iommu drivers in a single location will help
finding similar problems shared by different platforms, so they
could be solved once, in the iommu framework, instead of solved
differently (or duplicated) in each driver.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Allow the MSM8960 IOMMU to access its page tables directly
through the L2 cache.
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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Allow IOMMU to be selected for MSM8960 now that the
platform data has been generalized.
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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Break the IOMMU driver out as a Kconfig item. Initially it
was decided to always build this in for 8x60, but this
driver is not strictly necessary and should be optionally
selectable.
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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Add the machine record, init code, and build support for
the MSM8960 RUMI3.
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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Add the board file, Kconfig options, and Makefile options
needed to build for the MSM8960 Simulator target.
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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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>
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* '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
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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>
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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>
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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>
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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>
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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>
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The MSM8X60 FFA contains different components than the MSM8X60 SURF,
and therefore requires a different ARCH type and machine ID.
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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Board configuration for MSM8X60 simulation.
Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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Some MSM targets don't select the debug UART in this way. For those we
need to disable this selection mechanism.
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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Board configuration for MSM8X60 emulation on RUMI3.
Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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Some builds may not support the proc-comm interface with
the baseband processor.
Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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Featurize gpiomux so that systems like 7x00 which do not wish to use it
do not have to be saddled with the configuration tables.
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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Add the 'gpiomux' api, which addresses the following shortcomings
of existing tlmm api:
- gpio power-collapse, which is managed by a peripheral processor on
other targets, must be managed by the application processor on the 8x60.
- The enable/disable flag of the legacy gpio_tlmm_config api
is not applicable on the 8x60, and causes confusion.
- The gpio 'direction' bits are meaningless for all func_sel
configurations except for generic-gpio mode (func_sel 0), in which
case the gpio_direction_* functions should be used. Having these
bits in the tlmm api leads to confusion and misuse of the gpiolib
api, and they have been removed in gpiomux.
- The functional api of the legacy system ran contrary to the typical
use-case, which is a single massive configuration at boot. Rather
than forcing hundreds of 'config' function calls, the new api
allows data to be configured with a single table.
gpiomux_get and gpiomux_put are meant to be called automatically
when gpio_request and gpio_free are called, giving automatic
gpiomux/tlmm control to those drivers/lines with simple
power profiles - in the simplest cases, an entry in the gpiomux table
and the correct usage of gpiolib is all that is required to get proper
gpio power control.
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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Enables basic boot support for the MSM7x30 SURF development
board.
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
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Enable CONFIG_ARCH_QSD8X50. This is the first SOC with the
Scorpion processor.
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
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Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
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This removes the Kconfig menu option. SMD can still be selected
but it's done inside the Kconfig file and not via the menu.
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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This modifies SMD to use either the package v3 or package v4,
but not both. The current code tries to allocate as v4 on all
system which can produce a scary looking error message on boot up,
smem_find(16, 40): wrong size 16424
smd_alloc_channel() cid=02 size=08192 'SMD_RPCCALL'
With this error the code then falls back on the package v3 allocation
method. This method is inefficient because it causes a slow down
on some systems even when the allocation method can be determined
at compile time. It also causes a kernel size increase that effects
all system and is not needed.
This change corrects the allocation to use one method or the other
and not both.
Signed-off-by: Daniel Walker <c_dwalke@quicinc.com>
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This code provides the low level interface to the "shared memory
state machine" (smsm), and the virtual serial channels (smd), used
to communicate with the baseband processor. Higher level transports
(rpc, ethernet, AT command channel, etc) ride on top of this.
Signed-off-by: Brian Swetland <swetland@google.com>
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ARCH_MSM supports armv7 cpus, so we're pushed the CPU_V6/CPU_V7 selection
down into the arch/arm/mach-msm/Kconfig.
Also update the description to be a bit more accurate.
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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This is just enough to get the device booting and serial console
working. Sufficient for debugging further MSM7k/Dream Support.
This will support HTC Dream / T-Mobile G1 / Android ADP1 (which
are all the same hardware, known as "trout" to the ARM machine
database).
Signed-off-by: Brian Swetland <swetland@google.com>
Reviewed-by: GeunSik Lim <geunsik.lim@samsung.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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Provides options to select one of the three "lowspeed" UARTs
on MSM7k SoCs for DEBUG_LL output from the zImage decompressor
and kernel.
Signed-off-by: Brian Swetland <swetland@google.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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The MSM architecture covers a wider family of chips than just the MSM7X00A.
Move to a more generic name, in perparation for supporting the specific
SoC variants as sub-architectures (ARCH_MSM7X01A, ARCH_MSM722X, etc). This
gives us ARCH_MSM for the (many) common peripherals.
This also removes the unused/obsolete config item MSM7X00A_IDLE.
Signed-off-by: Brian Swetland <swetland@google.com>
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Add support for the Qualcomm MSM7200A eval board.
Common devices are defined in common.c, to avoid excessive
cut'n'pasting them into other board files.
Signed-off-by: Brian Swetland <swetland@google.com>
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