This patch fixes the backward compatibility of the older driver with the
newer firmware by making the binding unique so that the older driver won't
recognize the non-supported interfaces.
The new bindings are in sync with the newer firmware.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Tested-by: Mark Langsdorf <mlangsdo@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 5d425c1865 ("arm64: kernel: add support for cpu cache
information") adds cacheinfo support for ARM64. Since there's no
architectural way of detecting the cpus that share particular cache,
device tree can be used and the core cacheinfo already supports the
same.
This patch adds the L2 cache topology on Juno board, FVP/RTSM and
foundation models.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The 64-bit set of updates this release cycle adds support for three new platforms:
- Samsunc Exynos 7
- Freescale LS2085a
- Mediatek MT8173
For all these, the changes mostly consititude additions of DT contents,
but also some Kconfig entries to allow dependency/selection of drivers
per-platform, etc.
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Merge tag '64bit-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC 64-bit changes and additions from Olof Johansson:
"The 64-bit set of updates this release cycle adds support for three
new platforms:
- Samsunc Exynos 7
- Freescale LS2085a
- Mediatek MT8173
For all these, the changes mostly consititude additions of DT
contents, but also some Kconfig entries to allow dependency/selection
of drivers per-platform, etc"
* tag '64bit-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: Kconfig: clean up two no-op Kconfig options from CONFIG_ARCH_TEGRA*
arm64: Fix sort of platform Kconfig entries
arm64: Add support for FSL's LS2085A SoC in Kconfig and defconfig
arm64: Add DTS support for FSL's LS2085A SoC
arm64: mediatek: Add MT8173 SoC Kconfig and defconfig
arm64: dts: Add mediatek MT8173 SoC and evaluation board dts and Makefile
Document: DT: Add bindings for mediatek MT8173 SoC Platform
arm64: Add Tegra132 support
arm64: Enable ARMv8 based exynos7 SoC support
arm64: dts: Add nodes for mmc, i2c, rtc, watchdog, adc on exynos7
arm64: dts: Add PMU DT node for exynos7 SoC
arm64: dts: Add initial pinctrl support to exynos7
arm64: dts: Add initial device tree support for exynos7
This patch adds the device tree support for FSL LS2085A SoC
based on ARMv8 architecture.
Following levels of DTSI/DTS files have been created for the
LS2085A SoC family:
- fsl-ls2085a.dtsi:
DTS-Include file for FSL LS2085A SoC.
- fsl-ls2085a-simu.dts:
DTS file for FSL LS2085a software simulator model.
In addition, this patch adds build support for FSL's LS2085A
simulator model in arm64 dts Makefile.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
Signed-off-by: Arnab Basu <arnab_basu@rocketmail.com>
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Add device tree support for MT8173 SoC and evaluation board based on it.
Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Acked-by: Arnd Bergmann <arnd at arndb.de>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
A week's worth of fixes for various ARM platforms. Diff wise, the
largest fix is for OMAP to deal with how GIC now registers interrupts
(irq_domain_add_legacy() -> irq_domain_add_linear() changes).
Besides this, a few more renesas platforms needed the GIC instatiation
done for legacy boards. There's also a fix that disables coherency of
mvebu due to issues, and a few other smaller fixes.
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Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A week's worth of fixes for various ARM platforms. Diff wise, the
largest fix is for OMAP to deal with how GIC now registers interrupts
(irq_domain_add_legacy() -> irq_domain_add_linear() changes).
Besides this, a few more renesas platforms needed the GIC instatiation
done for legacy boards. There's also a fix that disables coherency of
mvebu due to issues, and a few other smaller fixes"
* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: dts: add baud rate to Juno stdout-path
ARM: dts: imx25: Fix PWM "per" clocks
bus: mvebu-mbus: fix support of MBus window 13
Merge tag 'mvebu-fixes-3.19-3' of git://git.infradead.org/linux-mvebu into fixes
ARM: mvebu: completely disable hardware I/O coherency
ARM: OMAP: Work around hardcoded interrupts
ARM: shmobile: r8a7779: Instantiate GIC from C board code in legacy builds
ARM: shmobile: r8a7778: Instantiate GIC from C board code in legacy builds
arm: boot: dts: dra7: enable dwc3 suspend PHY quirk
Without explicit command-line parameters, the Juno UART ends up running
at 57600 baud in the kernel, which is at odds with the 115200 baud used
by the rest of the firmware. Since commit 7914a7c565 now lets us
fix this by specifying default options in stdout-path, do so.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
As dts files have been reorganised under vendor subdirs, dtb files
cannot be removed with "make distclean" now. Thus, this patch moves
dtb files under archclean rule and removes unnecessary entries.
Cc: Robert Richter <rrichter@cavium.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jungseok Lee <jungseoklee85@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Add initial device tree nodes for exynos7 SoC and board dts file
to support espresso board based on exynos7 SoC.
Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
This adds support for two new ARM64 platforms:
* ARM Juno
* AMD Seattle
We had submissions for a number of additional platforms
from Samsung, Freescale and Spreadtrum but are still working
out the best process for getting these merged.
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Merge tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM64 SoC changes from Arnd Bergmann:
"This adds support for two new ARM64 platforms:
- ARM Juno
- AMD Seattle
We had submissions for a number of additional platforms from Samsung,
Freescale and Spreadtrum but are still working out the best process
for getting these merged"
* tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: amd-seattle: Fix PCI bus range due to SMMU limitation
arm64: ARM: Fix the Generic Timers interrupt active level description
arm64: amd-seattle: Adding device tree for AMD Seattle platform
arm64: Add Juno board device tree.
arm64: Create link to include/dt-bindings to enable C preprocessor use.
The remaining cleanups for 3.19 are to a large part result of
devicetree conversion nearing completion on two other platforms
besides AT91:
* Like AT91, Renesas shmobile is in the process to migrate to DT and
multiplatform, but using a different approach of doing it one
SoC at a time. For 3.19, the r8a7791 platform and associated\
"Koelsch" board are considered complete and we remove the non-DT
non-multiplatform support for this.
* The ARM Versatile Express has supported DT and multiplatform
for a long time, but we have still kept the legacy board files
around, because not all drivers were fully working before. We
have finally taken the last step to remove the board files.
Other changes in this branch are preparation for the later branches
or just unrelated to the more interesting changes:
* The dts files for arm64 get moved into per-vendor directories for
a clearer structure.
* Some dead code removal (zynq, exynos, davinci, imx)
* Using pr_*() macros more consistently instead of printk(KERN_*)
in some platform code.
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Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Arnd Bergmann:
"The remaining cleanups for 3.19 are to a large part result of
devicetree conversion nearing completion on two other platforms
besides AT91:
- Like AT91, Renesas shmobile is in the process to migrate to DT and
multiplatform, but using a different approach of doing it one SoC
at a time. For 3.19, the r8a7791 platform and associated "Koelsch"
board are considered complete and we remove the non-DT
non-multiplatform support for this.
- The ARM Versatile Express has supported DT and multiplatform for a
long time, but we have still kept the legacy board files around,
because not all drivers were fully working before. We have finally
taken the last step to remove the board files.
Other changes in this branch are preparation for the later branches or
just unrelated to the more interesting changes:
- The dts files for arm64 get moved into per-vendor directories for a
clearer structure.
- Some dead code removal (zynq, exynos, davinci, imx)
- Using pr_*() macros more consistently instead of printk(KERN_*) in
some platform code"
* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (71 commits)
ARM: zynq: Remove secondary_startup() declaration from header
ARM: vexpress: Enable regulator framework when MMCI is in use
ARM: vexpress: Remove non-DT code
ARM: imx: Remove unneeded .map_io initialization
ARM: dts: imx6qdl-sabresd: Fix the microphone route
ARM: imx: refactor mxc_iomux_mode()
ARM: imx: simplify clk_pllv3_prepare()
ARM: imx6q: drop unnecessary semicolon
ARM: imx: clean up machine mxc_arch_reset_init_dt reset init
ARM: dts: imx6qdl-rex: Remove unneeded 'fsl,mode' property
ARM: dts: imx6qdl-gw5x: Remove unneeded 'fsl,mode' property
ARM: dts: imx6qdl-sabresd: Use IMX6QDL_CLK_CKO define
ARM: at91: remove useless init_time for DT-only SoCs
ARM: davinci: Remove redundant casts
ARM: davinci: Use standard logging styles
ARM: shmobile: r8a7779: Spelling/grammar s/entity/identity/, s/map/mapping/
ARM: shmobile: sh7372: Spelling/grammar s/entity map/identity mapping/
ARM: shmobile: sh73a0: Spelling/grammar s/entity map/identity mapping/
ARM: EXYNOS: Remove unused static iomapping
ARM: at91: fix build breakage due to legacy board removals
...
Since PCIe is using SMMUv1 which only supports 15-bit stream ID,
only 7-bit PCI bus id is used to specify stream ID. Therefore,
we only limit the PCI bus range to 0x7f.
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The Cortex-A5x TRM states in paragraph "9.2 Generic Timer functional
description" that generic timers provide an active-LOW interrupt
output. Fix the device trees to correctly describe this.
While doing this update the CPU mask to match the number of described
CPUs as well.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Initial revision of device tree for AMD Seattle Development platform.
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Thomas Lendacky <Thomas.Lendacky@amd.com>
Signed-off-by: Joel Schopp <Joel.Schopp@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This adds support for ARM's Juno development board (rev 0).
It enables most of the board peripherals: UART, I2C, USB, MMC and
100Mb ethernet. There is no support at the moment for clock setting
and HDLCD driver which depends on it.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
DT files used in the compilation phase can be preprocessed by the C
preprocessor. This requires an include/dt-bindings directory to be
present in the arch/arm64/boot/dts directory.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'dts-subdirs-for-arm-soc-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/linux into next/cleanup
Pull "dts, kbuild: Implement support for dtb vendor subdirs" from
Robert Richter:
dts, kbuild: Implement support for dtb vendor subdirs
For arm64 we want to put dts files into vendor's subdirectories from
the beginning. This patch set implements this. As this is a generic
kbuild implementation, vendor subdirs will be also available for
arch/arm and other architectures. The subdirectory tree is also
reflected in the install path.
A new makefile variable dts-dirs is introduced to point to dts
subdirs. This variable is used by kbuild for building and installation
of dtb files.
A dts Makefile looks now as follows:
----
dtb-$(CONFIG_...) += some_file_1.dtb
dtb-$(CONFIG_...) += some_file_2.dtb
dts-dirs += dir_vendor_a
dts-dirs += dir_vendor_b
always := $(dtb-y)
subdir-y := $(dts-dirs)
clean-files := *.dtb
----
This patches also introduces the dtbs_install make target for
arm64. Install rules are moved to Makefile.dtbinst using the same
style and calling convention like for modinst and fwinst.
* tag 'dts-subdirs-for-arm-soc-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/linux:
dts, arm: Remove $(MACHINE) variable from dtbs make recipes
dts, arm64: Move dts files to vendor subdirs
dts, kbuild: Implement support for dtb vendor subdirs
dts, arm/arm64: Remove dtbs build rules in sub-makes
dts, kbuild: Factor out dtbs install rules to Makefile.dtbinst
dts, arm64: Add dtbs_install make target
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch enables CLCD support for the VE platform emulated by the
ARMv8 software model (DT bindings are based on Pawel's vexpress
patches) together with defconfig entries for SERIO_AMBAKMI and
FB_ARMCLCD.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
This patch adds support of vendor sub directories for dtb files.
Subdirectories can be specified in $(dts-dirs). Kbuild traverses over
all directories while building and installing dtb files. The directory
tree is also reflected in the install path.
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Add dtb files to build targets and let kbuild handle them. Thus,
special dtbs rules can be removed. This eases Makefiles and the
implementation of the support of vendor dtb subdirectories.
Signed-off-by: Robert Richter <rrichter@cavium.com>
Move dtbs install rules to Makefile.dtbinst. This change is needed to
implement support for dts vendor subdirs. The change makes Makefiles
easier and smaller as no longer the dtbs_install rule needs to be
defined. Another advantage is that install goals are not encoded in
targets anymore (%.dtb_dtbinst_).
Signed-off-by: Robert Richter <rrichter@cavium.com>
This adds the dtbs_install make target to arm64. The target has been
introduced already to arch/arm with the following commit:
f4d4ffc03e kbuild: dtbs_install: new make target
Implementation for arm64 is the same as for arm.
With 'dtbs_install' all config enabled dtb files are installed to
either the INSTALL_DTBS_PATH directory or the default location:
$INSTALL_PATH/dtbs/$KERNELRELEASE
Signed-off-by: Robert Richter <rrichter@cavium.com>
Pull networking fixes from David Miller:
1) Include fixes for netrom and dsa (Fabian Frederick and Florian
Fainelli)
2) Fix FIXED_PHY support in stmmac, from Giuseppe CAVALLARO.
3) Several SKB use after free fixes (vxlan, openvswitch, vxlan,
ip_tunnel, fou), from Li ROngQing.
4) fec driver PTP support fixes from Luwei Zhou and Nimrod Andy.
5) Use after free in virtio_net, from Michael S Tsirkin.
6) Fix flow mask handling for megaflows in openvswitch, from Pravin B
Shelar.
7) ISDN gigaset and capi bug fixes from Tilman Schmidt.
8) Fix route leak in ip_send_unicast_reply(), from Vasily Averin.
9) Fix two eBPF JIT bugs on x86, from Alexei Starovoitov.
10) TCP_SKB_CB() reorganization caused a few regressions, fixed by Cong
Wang and Eric Dumazet.
11) Don't overwrite end of SKB when parsing malformed sctp ASCONF
chunks, from Daniel Borkmann.
12) Don't call sock_kfree_s() with NULL pointers, this function also has
the side effect of adjusting the socket memory usage. From Cong Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits)
bna: fix skb->truesize underestimation
net: dsa: add includes for ethtool and phy_fixed definitions
openvswitch: Set flow-key members.
netrom: use linux/uaccess.h
dsa: Fix conversion from host device to mii bus
tipc: fix bug in bundled buffer reception
ipv6: introduce tcp_v6_iif()
sfc: add support for skb->xmit_more
r8152: return -EBUSY for runtime suspend
ipv4: fix a potential use after free in fou.c
ipv4: fix a potential use after free in ip_tunnel_core.c
hyperv: Add handling of IP header with option field in netvsc_set_hash()
openvswitch: Create right mask with disabled megaflows
vxlan: fix a free after use
openvswitch: fix a use after free
ipv4: dst_entry leak in ip_send_unicast_reply()
ipv4: clean up cookie_v4_check()
ipv4: share tcp_v4_save_options() with cookie_v4_check()
ipv4: call __ip_options_echo() in cookie_v4_check()
atm: simplify lanai.c by using module_pci_driver
...
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
"This set fixes a bunch of fallout from the changes that went in during
this merge window, particularly:
- Fix fsl_pq_mdio (Claudiu Manoil) and fm10k (Pranith Kumar) build
failures.
- Several networking drivers do atomic_set() on page counts where
that's not exactly legal. From Eric Dumazet.
- Make __skb_flow_get_ports() work cleanly with unaligned data, from
Alexander Duyck.
- Fix some kernel-doc buglets in rfkill and netlabel, from Fabian
Frederick.
- Unbalanced enable_irq_wake usage in bcmgenet and systemport
drivers, from Florian Fainelli.
- pxa168_eth needs to depend on HAS_DMA, from Geert Uytterhoeven.
- Multi-dequeue in the qdisc layer severely bypasses the fairness
limits the previous code used to enforce, reintroduce in a way that
at the same time doesn't compromise bulk dequeue opportunities.
From Jesper Dangaard Brouer.
- macvlan receive path unnecessarily hops through a softirq by using
netif_rx() instead of netif_receive_skb(). From Jason Baron"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (51 commits)
net: systemport: avoid unbalanced enable_irq_wake calls
net: bcmgenet: avoid unbalanced enable_irq_wake calls
net: bcmgenet: fix off-by-one in incrementing read pointer
net: fix races in page->_count manipulation
mlx4: fix race accessing page->_count
ixgbe: fix race accessing page->_count
igb: fix race accessing page->_count
fm10k: fix race accessing page->_count
net/phy: micrel: Add clock support for KSZ8021/KSZ8031
flow-dissector: Fix alignment issue in __skb_flow_get_ports
net: filter: fix the comments
Documentation: replace __sk_run_filter with __bpf_prog_run
macvlan: optimize the receive path
macvlan: pass 'bool' type to macvlan_count_rx()
drivers: net: xgene: Add 10GbE ethtool support
drivers: net: xgene: Add 10GbE support
drivers: net: xgene: Preparing for adding 10GbE support
dtb: Add 10GbE node to APM X-Gene SoC device tree
Documentation: dts: Update section header for APM X-Gene
MAINTAINERS: Update APM X-Gene section
...
Added 10GbE interface and clock nodes.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Starting with 3.18, we are merging SoC-specific changes for arm64 through
the arm-soc tree, like we have been doing for arm32.
This time, there is only one set of changes, adding support for the
Cavium "Thunder" Soc family. Since the changes are relatively small,
this includes Kconfig, defconfig and DT changes.
If all goes well, we will never require adding actual C source code
for platform support in arm64, given that the architecture is more
clearly defined and we have moved out a lot of the platform specifics
into device drivers for arm32 already.
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Merge tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM64 SoC changes from Arnd Bergmann:
"Starting with 3.18, we are merging SoC-specific changes for arm64
through the arm-soc tree, like we have been doing for arm32.
This time, there is only one set of changes, adding support for the
Cavium "Thunder" Soc family. Since the changes are relatively small,
this includes Kconfig, defconfig and DT changes.
If all goes well, we will never require adding actual C source code
for platform support in arm64, given that the architecture is more
clearly defined and we have moved out a lot of the platform specifics
into device drivers for arm32 already"
* tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64, defconfig: Enable Cavium Thunder SoC in defconfig
arm64, thunder: Add Kconfig option for Cavium Thunder SoC Family
arm64, thunder: Document devicetree bindings for Cavium Thunder SoC
arm64, thunder: Add initial dts for Cavium Thunder SoC
This introduces ARCH_THUNDER to enable soc specific drivers and dtb
files.
Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add initial device tree nodes for Cavium Thunder SoCs with support of
48 cores and gicv3. The dtsi file requires further changes, esp. for
pci, gicv3-its and smmu. This changes will be added later together
with the device drivers.
Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This adds random number generator dts node to APM X-Gene platform.
Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch adds bindings for APM X-Gene SoC ethernet driver.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Ravi Patel <rapatel@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
APM X-Gene Storm SoC supports 4 serial ports. This patch adds device nodes
for serial ports 1 to 3 (a device node for serial port 0 is already present
in the dts file).
This patch also sets the compatible property of serial nodes to "ns16550a".
Signed-off-by: Vinayak Kale <vkale@apm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Components of the Versatile Express platform (configuration
microcontrollers on motherboard and daughterboards in particular)
talk to each other over a custom configuration bus. They
provide miscellaneous functions (from clock generator control
to energy sensors) which are represented as platform devices
(and Device Tree nodes). The transactions on the bus can
be generated by different "bridges" in the system, some
of which are universal for the whole platform (for the price
of high transfer latencies), others restricted to a subsystem
(but much faster).
Until now drivers for such functions were using custom "func"
API, which is being replaced in this patch by regmap calls.
This required:
* a rework (and move to drivers/bus directory, as suggested
by Samuel and Arnd) of the config bus core, which is much
simpler now and uses device model infrastructure (class)
to keep track of the bridges; non-DT case (soon to be
retired anyway) is simply covered by a special device
registration function
* the new config-bus driver also takes over device population,
so there is no need for special matching table for
of_platform_populate nor "simple-bus" hack in the arm64
model dtsi file (relevant bindings documentation has
been updated); this allows all the vexpress devices
fit into normal device model, making it possible
to remove plenty of early inits and other hacks in
the near future
* adaptation of the syscfg bridge implementation in the
sysreg driver, again making it much simpler; there is
a special case of the "energy" function spanning two
registers, where they should be both defined in the tree
now, but backward compatibility is maintained in the code
* modification of the relevant drivers:
* hwmon - just a straight-forward API change
* power/reset driver - API change
* regulator - API change plus error handling
simplification
* osc clock driver - this one required larger rework
in order to turn in into a standard platform driver
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Mark Brown <broonie@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mike Turquette <mturquette@linaro.org>
Since the default DMA ops for arm64 are non-coherent, mark the X-Gene
controller explicitly as dma-coherent to avoid additional cache
maintenance.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Loc Ho <lho@apm.com>
This patch adds the DTS entries for the APM X-Gene SoC 15Gbps Multi-purpose
PHY driver. The PHY for SATA controller 2 and 3 are enabled by default.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Tuan Phan <tphan@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Will Deacon observed that kvmtool uses a size of 0x200 for virtio
block memory region and that the virtio block spec only uses 31 bytes in
the device specific region at 0x100 so reduce the region to a less
wasteful 0x200.
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Describe the virtio device so we can mount disk images in the simulator.
[Reduced the size of the region based on feedback from review -- broonie]
Signed-off-by: Mark Hambleton <mahamble@broadcom.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
With the spin-table SMP booting method, secondary CPUs poll a location
passed in the DT. The foundation-v8.dts file doesn't have this memory
reserved and there is a risk of Linux using it before secondary CPUs are
started.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
clk: arm64: Add DTS clock entry for APM X-Gene Storm SoC with reference to
reference, PCP PLL, SoC PLL, and Ethernet clocks.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Kumar Sankaran <ksankaran@apm.com>
Signed-off-by: Vinayak Kale <vkale@apm.com>
Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Commit 90556ca1 ("arm64: vexpress: Add dts files for the ARMv8 RTSM
models") added foundation-v8.dts, but erroneously set
/cpus/#address-cells = <1> while providing two cells in each cpus/cpu@N
node's reg property.
As of commit ea393a2e ("arm64: smp: honour #address-size when parsing
CPU reg property") we read in as many address cells as specified rather
than always reading two. This means that for foundation-v8.dts, we only
read the first reg cell (zero) for each cpu node, and receive a lot of
warnings at boot of the form "/cpus/cpu@1: duplicate cpu reg properties
in the DT".
This patch corrects foundation-v8.dts to have the correct value for
/cpus/#address-cells.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This patch adds the DTS files for the ARMv8 RTSM and Foundation models.
Signed-off-by: Pawel Moll <Pawel.Moll@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
if_changed (used by the *.dts->*.dtc rule) rebuilds files if they aren't
contained in $(targets). (make V=2 indicates this). Add $(dtb-y) to
$(targets) to prevent *.dtb from always being rebuilt. Note
This fixes a regression introduced by the .dtb rule rework in da4cbc6
"arm64: use new common dtc rule", although since arm64 doesn't actually
have any *.dts yet, this isn't a critical issue.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Based on Rob Herring's patches for arch/arm, this patch adds a dtbs
target to arch/arm64/boot/Makefile.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
The current rules have the .dtb files build in a different directory
from the .dts files. This patch changes arm64 to use the generic dtb
rule which builds .dtb files in the same directory as the source .dts.
This requires moving parts of arch/arm64/boot/Makefile into newly created
arch/arm64/boot/dts/Makefile, and updating arch/arm64/Makefile to call the
new Makefile.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This patch adds Makefile and Kconfig files required for building an
AArch64 kernel.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Iyappan Subramanian