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![Linus Torvalds](/assets/img/avatar_default.png)
As we've enabled multiplatform kernels on ARM, and greatly done away with the contents under arch/arm/mach-*, there's still need for SoC-related drivers to go somewhere. Many of them go in through other driver trees, but we still have drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code that might be shared between ARM and ARM64 (or just in general makes sense to not have under the architecture directory). This branch contains mostly such code: - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to communicate with power management blocks on these SoCs for use by clock, regulator and bus frequency drivers. - Allwinner Reduced Serial Bus driver, again used to communicate with PMICs. - Drivers for ARM's SCPI (System Control Processor). Not to be confused with PSCI (Power State Coordination Interface). SCPI is used to communicate with the assistant embedded cores doing power management, and we have yet to see how many of them will implement this for their hardware vs abstracting in other ways (or not at all like in the past). - To make confusion between SCPI and PSCI more likely, this release also includes an update of PSCI to interface version 1.0. - Rockchip support for power domains. - A driver to talk to the firmware on Raspberry Pi. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJWQC+cAAoJEIwa5zzehBx3jEUP/0GpxfDVanEUkudVLLe7J0RH CNlRan107Cw6hXRUJo7elEsuCALjccXjc1CAH4+RnNpOAeBKW97n+WU7trTv+wUZ sQX4SkBPKFBlgwGF2qhsi5q74gms/BrgtCa4kNb9joOYso039tlfIOPzK80DMkOm TkyIJdUCgFJMjCQLhX6kGT0PDcrbIjb6aA2cF3FAVeaJA7uz8lNe/eHJr3oHxIEY CvC651yJ2mIHQUU4BJx/AJo+wXg3dRUXNCAtBjwLRPEAzduYZXYm1ZTVIby/1q9r dR2KDFEuibODXmXrDBzKNJwCu/TLJEwo/1oPaEIVfY91XLKfiWUhgVqa1o1I+d9U XoGPibCW461qFahjQW87MfInALpCOA7/RbTNjFp+MVyipCYvkaYq7KFiYEldgFDx z4Qx/J4hYc2TlDWrpNiUCZMfmhwi7y+Ib+tnenYTO1eyMuw0e9mfnVdjk5iU3Pvk Ye4qPqpYclJruyHbYi164878+1lLaW2NCUgC3rkBO/GWPAzp7d9iLWoZ3PuyD5i5 PEjs668UcRdZYbI4rdrhGHL8Eq9Gnuc4Rthu7HxPOK+DG0XgP8r97PhM8aYGYVDO +yikBtjWRsA9fPj3rMKA3UsQ61DAeR9LmZ0XPGjWFMCjCG0JlUoIMaA+Uu0i8fr8 95qxBVxbO7rhL39r1rhV =dm+I -----END PGP SIGNATURE----- Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "As we've enabled multiplatform kernels on ARM, and greatly done away with the contents under arch/arm/mach-*, there's still need for SoC-related drivers to go somewhere. Many of them go in through other driver trees, but we still have drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code that might be shared between ARM and ARM64 (or just in general makes sense to not have under the architecture directory). This branch contains mostly such code: - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to communicate with power management blocks on these SoCs for use by clock, regulator and bus frequency drivers. - Allwinner Reduced Serial Bus driver, again used to communicate with PMICs. - Drivers for ARM's SCPI (System Control Processor). Not to be confused with PSCI (Power State Coordination Interface). SCPI is used to communicate with the assistant embedded cores doing power management, and we have yet to see how many of them will implement this for their hardware vs abstracting in other ways (or not at all like in the past). - To make confusion between SCPI and PSCI more likely, this release also includes an update of PSCI to interface version 1.0. - Rockchip support for power domains. - A driver to talk to the firmware on Raspberry Pi" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits) soc: qcom: smd-rpm: Correct size of outgoing message bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus bus: sunxi-rsb: Add Allwinner Reduced Serial Bus (RSB) controller bindings ARM: bcm2835: add mutual inclusion protection drivers: psci: make PSCI 1.0 functions initialization version dependent dt-bindings: Correct paths in Rockchip power domains binding document soc: rockchip: power-domain: don't try to print the clock name in error case soc: qcom/smem: add HWSPINLOCK dependency clk: berlin: add cpuclk ARM: berlin: dts: add CLKID_CPU for BG2Q ARM: bcm2835: Add the Raspberry Pi firmware driver soc: qcom: smem: Move RPM message ram out of smem DT node soc: qcom: smd-rpm: Correct the active vs sleep state flagging soc: qcom: smd: delete unneeded of_node_put firmware: qcom-scm: build for correct architecture level soc: qcom: smd: Correct SMEM items for upper channels qcom-scm: add missing prototype for qcom_scm_is_available() qcom-scm: fix endianess issue in __qcom_scm_is_call_available soc: qcom: smd: Reject send of too big packets soc: qcom: smd: Handle big endian CPUs ...
143 lines
4 KiB
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143 lines
4 KiB
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#
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# Bus Devices
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#
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menu "Bus devices"
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config ARM_CCI
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bool
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config ARM_CCI_PMU
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bool
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select ARM_CCI
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config ARM_CCI400_COMMON
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bool
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select ARM_CCI
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config ARM_CCI400_PMU
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bool "ARM CCI400 PMU support"
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depends on (ARM && CPU_V7) || ARM64
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depends on PERF_EVENTS
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select ARM_CCI400_COMMON
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select ARM_CCI_PMU
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help
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Support for PMU events monitoring on the ARM CCI-400 (cache coherent
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interconnect). CCI-400 supports counting events related to the
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connected slave/master interfaces.
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config ARM_CCI400_PORT_CTRL
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bool
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depends on ARM && OF && CPU_V7
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select ARM_CCI400_COMMON
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help
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Low level power management driver for CCI400 cache coherent
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interconnect for ARM platforms.
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config ARM_CCI500_PMU
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bool "ARM CCI500 PMU support"
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depends on (ARM && CPU_V7) || ARM64
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depends on PERF_EVENTS
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select ARM_CCI_PMU
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help
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Support for PMU events monitoring on the ARM CCI-500 cache coherent
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interconnect. CCI-500 provides 8 independent event counters, which
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can count events pertaining to the slave/master interfaces as well
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as the internal events to the CCI.
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If unsure, say Y
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config ARM_CCN
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bool "ARM CCN driver support"
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depends on ARM || ARM64
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depends on PERF_EVENTS
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help
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PMU (perf) driver supporting the ARM CCN (Cache Coherent Network)
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interconnect.
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config BRCMSTB_GISB_ARB
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bool "Broadcom STB GISB bus arbiter"
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depends on ARM || MIPS
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help
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Driver for the Broadcom Set Top Box System-on-a-chip internal bus
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arbiter. This driver provides timeout and target abort error handling
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and internal bus master decoding.
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config IMX_WEIM
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bool "Freescale EIM DRIVER"
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depends on ARCH_MXC
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help
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Driver for i.MX WEIM controller.
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The WEIM(Wireless External Interface Module) works like a bus.
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You can attach many different devices on it, such as NOR, onenand.
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config MIPS_CDMM
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bool "MIPS Common Device Memory Map (CDMM) Driver"
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depends on CPU_MIPSR2
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help
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Driver needed for the MIPS Common Device Memory Map bus in MIPS
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cores. This bus is for per-CPU tightly coupled devices such as the
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Fast Debug Channel (FDC).
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For this to work, either your bootloader needs to enable the CDMM
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region at an unused physical address on the boot CPU, or else your
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platform code needs to implement mips_cdmm_phys_base() (see
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asm/cdmm.h).
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config MVEBU_MBUS
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bool
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depends on PLAT_ORION
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help
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Driver needed for the MBus configuration on Marvell EBU SoCs
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(Kirkwood, Dove, Orion5x, MV78XX0 and Armada 370/XP).
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config OMAP_INTERCONNECT
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tristate "OMAP INTERCONNECT DRIVER"
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depends on ARCH_OMAP2PLUS
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help
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Driver to enable OMAP interconnect error handling driver.
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config OMAP_OCP2SCP
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tristate "OMAP OCP2SCP DRIVER"
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depends on ARCH_OMAP2PLUS
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help
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Driver to enable ocp2scp module which transforms ocp interface
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protocol to scp protocol. In OMAP4, USB PHY is connected via
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OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
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OCP2SCP.
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config SIMPLE_PM_BUS
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bool "Simple Power-Managed Bus Driver"
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depends on OF && PM
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depends on ARCH_SHMOBILE || COMPILE_TEST
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help
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Driver for transparent busses that don't need a real driver, but
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where the bus controller is part of a PM domain, or under the control
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of a functional clock, and thus relies on runtime PM for managing
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this PM domain and/or clock.
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An example of such a bus controller is the Renesas Bus State
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Controller (BSC, sometimes called "LBSC within Bus Bridge", or
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"External Bus Interface") as found on several Renesas ARM SoCs.
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config SUNXI_RSB
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tristate "Allwinner sunXi Reduced Serial Bus Driver"
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default MACH_SUN8I || MACH_SUN9I
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depends on ARCH_SUNXI
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select REGMAP
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help
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Say y here to enable support for Allwinner's Reduced Serial Bus
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(RSB) support. This controller is responsible for communicating
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with various RSB based devices, such as AXP223, AXP8XX PMICs,
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and AC100/AC200 ICs.
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config VEXPRESS_CONFIG
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bool "Versatile Express configuration bus"
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default y if ARCH_VEXPRESS
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depends on ARM || ARM64
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depends on OF
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select REGMAP
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help
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Platform configuration infrastructure for the ARM Ltd.
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Versatile Express.
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endmenu
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