| # DesignWare SPI driver configuration options |
| |
| # Copyright (c) 2015-2016 Intel Corporation |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config HAS_SPI_DW |
| bool |
| help |
| Signifies whether DesignWare SPI compatible HW is available |
| |
| menuconfig SPI_DW |
| bool "Designware SPI controller driver" |
| depends on HAS_SPI_DW |
| 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 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. |
| |
| 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 Synchronous |
| Serial Interface. Depth ranges from 2-256. |
| |
| config SPI_DW_ACCESS_WORD_ONLY |
| bool "DesignWare SPI only allows word access" |
| default n |
| depends on SPI_DW |
| help |
| In some case, e.g. ARC HS Development kit, the peripheral space of |
| DesignWare SPI only allows word access, byte access will raise |
| exception. |
| |
| if SPI_0 |
| |
| config SPI_DW_PORT_0_INTERRUPT_SINGLE_LINE |
| bool "Single interrupt line for all interrupts" |
| default y |
| help |
| Only one line is used to trigger interrupts: RX, TX and ERROR |
| interrupt go all through that line, undifferentiated. |
| |
| config SPI_DW_PORT_0_CLOCK_GATE |
| bool "Enable clock gating" |
| depends on CLOCK_CONTROL |
| |
| if SPI_DW_PORT_0_CLOCK_GATE |
| |
| config SPI_DW_PORT_0_CLOCK_GATE_DRV_NAME |
| string |
| |
| config SPI_DW_PORT_0_CLOCK_GATE_SUBSYS |
| int "Clock controller's subsystem" |
| |
| endif # SPI_DW_PORT_0_CLOCK_GATE |
| |
| endif # SPI_0 |
| |
| if SPI_1 |
| |
| config SPI_DW_PORT_1_INTERRUPT_SINGLE_LINE |
| bool "Single interrupt line for all interrupts" |
| default y |
| |
| config SPI_DW_PORT_1_CLOCK_GATE |
| bool "Enable clock gating" |
| depends on CLOCK_CONTROL |
| |
| if SPI_DW_PORT_1_CLOCK_GATE |
| |
| config SPI_DW_PORT_1_CLOCK_GATE_DRV_NAME |
| string |
| |
| config SPI_DW_PORT_1_CLOCK_GATE_SUBSYS |
| int "Clock controller's subsystem" |
| |
| endif # SPI_DW_PORT_1_CLOCK_GATE |
| |
| endif # SPI_1 |
| |
| if SPI_2 |
| |
| config SPI_DW_PORT_2_INTERRUPT_SINGLE_LINE |
| bool "Single interrupt line for all interrupts" |
| default y |
| help |
| Only one line is used to trigger interrupts: RX, TX and ERROR |
| interrupt go all through that line, undifferentiated. |
| |
| config SPI_DW_PORT_2_CLOCK_GATE |
| bool "Enable clock gating" |
| depends on CLOCK_CONTROL |
| |
| if SPI_DW_PORT_2_CLOCK_GATE |
| |
| config SPI_DW_PORT_2_CLOCK_GATE_DRV_NAME |
| string |
| default "" |
| |
| config SPI_DW_PORT_2_CLOCK_GATE_SUBSYS |
| int "Clock controller's subsystem" |
| |
| endif # SPI_DW_PORT_2_CLOCK_GATE |
| |
| endif # SPI_2 |
| |
| if SPI_3 |
| |
| config SPI_DW_PORT_3_INTERRUPT_SINGLE_LINE |
| bool "Single interrupt line for all interrupts" |
| default y |
| help |
| Only one line is used to trigger interrupts: RX, TX and ERROR |
| interrupt go all through that line, undifferentiated. |
| |
| config SPI_DW_PORT_3_CLOCK_GATE |
| bool "Enable clock gating" |
| depends on CLOCK_CONTROL |
| |
| if SPI_DW_PORT_3_CLOCK_GATE |
| |
| config SPI_DW_PORT_3_CLOCK_GATE_DRV_NAME |
| string |
| default "" |
| |
| config SPI_DW_PORT_3_CLOCK_GATE_SUBSYS |
| int "Clock controller's subsystem" |
| |
| endif # SPI_DW_PORT_3_CLOCK_GATE |
| |
| endif # SPI_3 |
| |
| endif # SPI_DW |
