tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2#
3# Bus Devices
4#
5
6menu "Bus devices"
7
8config ARM_CCI
9 bool
10
11config ARM_CCI400_COMMON
12 bool
13 select ARM_CCI
14
15config ARM_CCI400_PORT_CTRL
16 bool
17 depends on ARM && OF && CPU_V7
18 select ARM_CCI400_COMMON
19 help
20 Low level power management driver for CCI400 cache coherent
21 interconnect for ARM platforms.
22
23config ARM_INTEGRATOR_LM
24 bool "ARM Integrator Logic Module bus"
25 depends on HAS_IOMEM
26 depends on ARCH_INTEGRATOR || COMPILE_TEST
27 default ARCH_INTEGRATOR
28 help
29 Say y here to enable support for the ARM Logic Module bus
30 found on the ARM Integrator AP (Application Platform)
31
32config BRCMSTB_GISB_ARB
33 bool "Broadcom STB GISB bus arbiter"
34 depends on ARM || ARM64 || MIPS
35 default ARCH_BRCMSTB || BMIPS_GENERIC
36 help
37 Driver for the Broadcom Set Top Box System-on-a-chip internal bus
38 arbiter. This driver provides timeout and target abort error handling
39 and internal bus master decoding.
40
41config BT1_APB
42 bool "Baikal-T1 APB-bus driver"
43 depends on MIPS_BAIKAL_T1 || COMPILE_TEST
44 select REGMAP_MMIO
45 help
46 Baikal-T1 AXI-APB bridge is used to access the SoC subsystem CSRs.
47 IO requests are routed to this bus by means of the DW AMBA 3 AXI
48 Interconnect. In case of any APB protocol collisions, slave device
49 not responding on timeout an IRQ is raised with an erroneous address
50 reported to the APB terminator (APB Errors Handler Block). This
51 driver provides the interrupt handler to detect the erroneous
52 address, prints an error message about the address fault, updates an
53 errors counter. The counter and the APB-bus operations timeout can be
54 accessed via corresponding sysfs nodes.
55
56config BT1_AXI
57 bool "Baikal-T1 AXI-bus driver"
58 depends on MIPS_BAIKAL_T1 || COMPILE_TEST
59 select MFD_SYSCON
60 help
61 AXI3-bus is the main communication bus connecting all high-speed
62 peripheral IP-cores with RAM controller and with MIPS P5600 cores on
63 Baikal-T1 SoC. Traffic arbitration is done by means of DW AMBA 3 AXI
64 Interconnect (so called AXI Main Interconnect) routing IO requests
65 from one SoC block to another. This driver provides a way to detect
66 any bus protocol errors and device not responding situations by
67 means of an embedded on top of the interconnect errors handler
68 block (EHB). AXI Interconnect QoS arbitration tuning is currently
69 unsupported.
70
71config MOXTET
72 tristate "CZ.NIC Turris Mox module configuration bus"
73 depends on SPI_MASTER && OF
74 help
75 Say yes here to add support for the module configuration bus found
76 on CZ.NIC's Turris Mox. This is needed for the ability to discover
77 the order in which the modules are connected and to get/set some of
78 their settings. For example the GPIOs on Mox SFP module are
79 configured through this bus.
80
81config HISILICON_LPC
82 bool "Support for ISA I/O space on HiSilicon Hip06/7"
83 depends on (ARM64 && ARCH_HISI) || (COMPILE_TEST && !ALPHA && !HEXAGON && !PARISC && !C6X)
84 depends on HAS_IOMEM
85 select INDIRECT_PIO if ARM64
86 help
87 Driver to enable I/O access to devices attached to the Low Pin
88 Count bus on the HiSilicon Hip06/7 SoC.
89
90config IMX_WEIM
91 bool "Freescale EIM DRIVER"
92 depends on ARCH_MXC
93 help
94 Driver for i.MX WEIM controller.
95 The WEIM(Wireless External Interface Module) works like a bus.
96 You can attach many different devices on it, such as NOR, onenand.
97
98config MIPS_CDMM
99 bool "MIPS Common Device Memory Map (CDMM) Driver"
100 depends on CPU_MIPSR2
101 help
102 Driver needed for the MIPS Common Device Memory Map bus in MIPS
103 cores. This bus is for per-CPU tightly coupled devices such as the
104 Fast Debug Channel (FDC).
105
106 For this to work, either your bootloader needs to enable the CDMM
107 region at an unused physical address on the boot CPU, or else your
108 platform code needs to implement mips_cdmm_phys_base() (see
109 asm/cdmm.h).
110
111config MVEBU_MBUS
112 bool
113 depends on PLAT_ORION
114 help
115 Driver needed for the MBus configuration on Marvell EBU SoCs
116 (Kirkwood, Dove, Orion5x, MV78XX0 and Armada 370/XP).
117
118config OMAP_INTERCONNECT
119 tristate "OMAP INTERCONNECT DRIVER"
120 depends on ARCH_OMAP2PLUS
121
122 help
123 Driver to enable OMAP interconnect error handling driver.
124
125config OMAP_OCP2SCP
126 tristate "OMAP OCP2SCP DRIVER"
127 depends on ARCH_OMAP2PLUS
128 help
129 Driver to enable ocp2scp module which transforms ocp interface
130 protocol to scp protocol. In OMAP4, USB PHY is connected via
131 OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
132 OCP2SCP.
133
134config QCOM_EBI2
135 bool "Qualcomm External Bus Interface 2 (EBI2)"
136 depends on HAS_IOMEM
137 depends on ARCH_QCOM || COMPILE_TEST
138 default ARCH_QCOM
139 help
140 Say y here to enable support for the Qualcomm External Bus
141 Interface 2, which can be used to connect things like NAND Flash,
142 SRAM, ethernet adapters, FPGAs and LCD displays.
143
144config SIMPLE_PM_BUS
145 tristate "Simple Power-Managed Bus Driver"
146 depends on OF && PM
147 help
148 Driver for transparent busses that don't need a real driver, but
149 where the bus controller is part of a PM domain, or under the control
150 of a functional clock, and thus relies on runtime PM for managing
151 this PM domain and/or clock.
152 An example of such a bus controller is the Renesas Bus State
153 Controller (BSC, sometimes called "LBSC within Bus Bridge", or
154 "External Bus Interface") as found on several Renesas ARM SoCs.
155
156config SUN50I_DE2_BUS
157 bool "Allwinner A64 DE2 Bus Driver"
158 default ARM64
159 depends on ARCH_SUNXI
160 select SUNXI_SRAM
161 help
162 Say y here to enable support for Allwinner A64 DE2 bus driver. It's
163 mostly transparent, but a SRAM region needs to be claimed in the SRAM
164 controller to make the all blocks in the DE2 part accessible.
165
166config SUNXI_RSB
167 tristate "Allwinner sunXi Reduced Serial Bus Driver"
168 default MACH_SUN8I || MACH_SUN9I || ARM64
169 depends on ARCH_SUNXI
170 select REGMAP
171 help
172 Say y here to enable support for Allwinner's Reduced Serial Bus
173 (RSB) support. This controller is responsible for communicating
174 with various RSB based devices, such as AXP223, AXP8XX PMICs,
175 and AC100/AC200 ICs.
176
177config TEGRA_ACONNECT
178 tristate "Tegra ACONNECT Bus Driver"
179 depends on ARCH_TEGRA_210_SOC
180 depends on OF && PM
181 help
182 Driver for the Tegra ACONNECT bus which is used to interface with
183 the devices inside the Audio Processing Engine (APE) for Tegra210.
184
185config TEGRA_GMI
186 tristate "Tegra Generic Memory Interface bus driver"
187 depends on ARCH_TEGRA
188 help
189 Driver for the Tegra Generic Memory Interface bus which can be used
190 to attach devices such as NOR, UART, FPGA and more.
191
192config TI_PWMSS
193 bool
194 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM || TI_EQEP)
195 help
196 PWM Subsystem driver support for AM33xx SOC.
197
198 PWM submodules require PWM config space access from submodule
199 drivers and require common parent driver support.
200
201config TI_SYSC
202 bool "TI sysc interconnect target module driver"
203 depends on ARCH_OMAP2PLUS
204 help
205 Generic driver for Texas Instruments interconnect target module
206 found on many TI SoCs.
207
208config TS_NBUS
209 tristate "Technologic Systems NBUS Driver"
210 depends on SOC_IMX28
211 depends on OF_GPIO && PWM
212 help
213 Driver for the Technologic Systems NBUS which is used to interface
214 with the peripherals in the FPGA of the TS-4600 SoM.
215
216config UNIPHIER_SYSTEM_BUS
217 tristate "UniPhier System Bus driver"
218 depends on ARCH_UNIPHIER && OF
219 default y
220 help
221 Support for UniPhier System Bus, a simple external bus. This is
222 needed to use on-board devices connected to UniPhier SoCs.
223
224config VEXPRESS_CONFIG
225 tristate "Versatile Express configuration bus"
226 default y if ARCH_VEXPRESS
227 depends on ARM || ARM64
228 depends on OF
229 select REGMAP
230 help
231 Platform configuration infrastructure for the ARM Ltd.
232 Versatile Express.
233
234config DA8XX_MSTPRI
235 bool "TI da8xx master peripheral priority driver"
236 depends on ARCH_DAVINCI_DA8XX
237 help
238 Driver for Texas Instruments da8xx master peripheral priority
239 configuration. Allows to adjust the priorities of all master
240 peripherals.
241
242source "drivers/bus/fsl-mc/Kconfig"
243source "drivers/bus/mhi/Kconfig"
244
245endmenu