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bb1818a535
Add driver for CMSDK APB UART ports. The driver implements RX and TX functionalities. Data transmission is implemented using polling and interrupts. The driver default configuration for the port is to use 8bit data transmission, 1 stop bit, no parity control. The driver exposes a public uart driver API and allows to register up to five UART devices: from 'UART_0' to 'UART_4'. The driver performs the required pinmux, the clock control configuration is left to the platform. The driver has been verified to work with the Hello World sample application on a Beetle Board. Jira: ZEP-1245 Change-Id: I5baf78b7659aae2a574d8e66205e6fd5eb579133 Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
190 lines
4.6 KiB
Plaintext
190 lines
4.6 KiB
Plaintext
# Kconfig.beetle - ARM CMSDK APB SoC UART configuration options
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#
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#
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# Copyright (c) 2016 Linaro Limited
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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menuconfig UART_CMSDK_APB
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bool "ARM CMSDK APB UART driver"
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default n
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select SERIAL_HAS_DRIVER
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depends on SOC_FAMILY_ARM
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help
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This option enables the UART driver for ARM CMSDK APB UART.
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if UART_CMSDK_APB
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# ---------- Port 0 ----------
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config UART_CMSDK_APB_PORT0
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bool "Enable driver for UART 0"
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default n
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help
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Build the driver to utilize UART controller Port 0.
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config UART_CMSDK_APB_PORT0_NAME
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string "Device Name for UART 0"
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default "UART_0"
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depends on UART_CMSDK_APB_PORT0
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help
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This is the device name for UART, and is included in the device
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struct.
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config UART_CMSDK_APB_PORT0_IRQ_PRI
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int "UART Interrupt Priority (Interrupt support)"
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default 2
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depends on UART_CMSDK_APB_PORT0
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depends on UART_INTERRUPT_DRIVEN
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help
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The interrupt priority for UART port.
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config UART_CMSDK_APB_PORT0_BAUD_RATE
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int "Baud Rate"
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range 9600 115200
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default 115200
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depends on UART_CMSDK_APB_PORT0
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help
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The baud rate for UART port to be set to at boot.
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# ---------- Port 1 ----------
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config UART_CMSDK_APB_PORT1
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bool "Enable driver for UART 1"
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default n
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help
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Build the driver to utilize UART controller Port 1.
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config UART_CMSDK_APB_PORT1_NAME
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string "Device Name for UART 1"
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default "UART_1"
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depends on UART_CMSDK_APB_PORT1
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help
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This is the device name for UART, and is included in the device
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struct.
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config UART_CMSDK_APB_PORT1_IRQ_PRI
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int "UART Interrupt Priority (Interrupt support)"
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default 2
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depends on UART_CMSDK_APB_PORT1
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depends on UART_INTERRUPT_DRIVEN
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help
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The interrupt priority for UART port.
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config UART_CMSDK_APB_PORT1_BAUD_RATE
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int "Baud Rate"
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range 9600 115200
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default 115200
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depends on UART_CMSDK_APB_PORT1
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help
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The baud rate for UART port to be set to at boot.
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# ---------- Port 2 ----------
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config UART_CMSDK_APB_PORT2
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bool "Enable driver for UART 2"
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default n
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help
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Build the driver to utilize UART controller Port 2.
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config UART_CMSDK_APB_PORT2_NAME
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string "Device Name for UART 2"
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default "UART_2"
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depends on UART_CMSDK_APB_PORT2
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help
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This is the device name for UART, and is included in the device
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struct.
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config UART_CMSDK_APB_PORT2_IRQ_PRI
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int "UART Interrupt Priority (Interrupt support)"
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default 2
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depends on UART_CMSDK_APB_PORT2
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depends on UART_INTERRUPT_DRIVEN
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help
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The interrupt priority for UART port.
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config UART_CMSDK_APB_PORT2_BAUD_RATE
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int "Baud Rate"
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range 9600 115200
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default 115200
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depends on UART_CMSDK_APB_PORT2
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help
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The baud rate for UART port to be set to at boot.
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# ---------- Port 3 ----------
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config UART_CMSDK_APB_PORT3
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bool "Enable driver for UART 3"
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default n
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help
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Build the driver to utilize UART controller Port 3.
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config UART_CMSDK_APB_PORT3_NAME
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string "Device Name for UART 3"
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default "UART_3"
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depends on UART_CMSDK_APB_PORT3
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help
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This is the device name for UART, and is included in the device
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struct.
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config UART_CMSDK_APB_PORT3_IRQ_PRI
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int "UART Interrupt Priority (Interrupt support)"
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default 2
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depends on UART_CMSDK_APB_PORT3
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depends on UART_INTERRUPT_DRIVEN
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help
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The interrupt priority for UART port.
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config UART_CMSDK_APB_PORT3_BAUD_RATE
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int "Baud Rate"
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range 9600 115200
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default 115200
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depends on UART_CMSDK_APB_PORT3
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help
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The baud rate for UART port to be set to at boot.
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# ---------- Port 4 ----------
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config UART_CMSDK_APB_PORT4
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bool "Enable driver for UART 4"
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default n
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help
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Build the driver to utilize UART controller Port 4.
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config UART_CMSDK_APB_PORT4_NAME
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string "Device Name for UART 4"
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default "UART_4"
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depends on UART_CMSDK_APB_PORT4
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help
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This is the device name for UART, and is included in the device
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struct.
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config UART_CMSDK_APB_PORT4_IRQ_PRI
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int "UART Interrupt Priority (Interrupt support)"
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default 2
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depends on UART_CMSDK_APB_PORT4
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depends on UART_INTERRUPT_DRIVEN
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help
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The interrupt priority for UART port.
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config UART_CMSDK_APB_PORT4_BAUD_RATE
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int "Baud Rate"
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range 9600 115200
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default 115200
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depends on UART_CMSDK_APB_PORT4
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help
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The baud rate for UART port to be set to at boot.
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endif # UART_CMSDK_APB
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