| # Kconfig.dw - DesignWare SPI driver configuration options |
| # |
| # |
| # Copyright (c) 2015-2016 Intel Corporation |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| menuconfig SPI_DW |
| bool |
| prompt "Designware SPI controller driver" |
| depends on SPI |
| default n |
| help |
| Enable support for Designware's SPI controllers. |
| |
| if SPI_DW |
| |
| config SPI_DW_ARC_AUX_REGS |
| bool "Registers are part of ARC auxiliary registers" |
| depends on SPI_DW && ARC |
| default y |
| help |
| SPI IP block registers are part of user extended auxiliary |
| registers and thus their access is different than memory |
| mapped registers. |
| |
| |
| choice |
| depends on SPI_DW |
| prompt "DesignWare SPI interrupt management logic" |
| default SPI_DW_INTERRUPT_SINGLE_LINE |
| |
| config SPI_DW_INTERRUPT_SINGLE_LINE |
| bool "Single interrupt line for all interrupts" |
| help |
| Only one line is used to trigger interrupts: RX, TX and ERROR |
| interrupt go all through that line, undifferentiated. |
| config SPI_DW_INTERRUPT_SEPARATED_LINES |
| bool "One line per-interrupt type (RX, TX and ERROR)" |
| help |
| Each interrupt gets a dedicated line |
| endchoice |
| |
| config SPI_DW_CLOCK_GATE |
| bool "Enable glock gating" |
| depends on SPI_DW && SOC_QUARK_SE_C1000 |
| select CLOCK_CONTROL |
| default n |
| |
| config SPI_DW_CLOCK_GATE_DRV_NAME |
| string |
| depends on SPI_DW_CLOCK_GATE |
| default "" |
| |
| config SPI_DW_FIFO_DEPTH |
| int "Rx and Tx FIFO Depth" |
| help |
| Corresponds to the SSI_TX_FIFO_DEPTH and |
| SSI_RX_FIFO_DEPTH of the DesignWare Syncrhonous |
| Serial Interface. Depth ranges from 2-256. |
| |
| config SPI_DW_PORT_0_CLOCK_GATE_SUBSYS |
| int "Clock controller's subsystem" |
| depends on SPI_DW_CLOCK_GATE |
| |
| |
| config SPI_DW_PORT_1_CLOCK_GATE_SUBSYS |
| int "Clock controller's subsystem" |
| depends on SPI_DW_CLOCK_GATE |
| |
| |
| endif # SPI_DW |
