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CONFIG_UART_NS16550_ACCESS_WORD_ONLY
¶
NS16550 only allows word access
Type: bool
Help¶
In some case, e.g. ARC HS Development kit, the peripheral space of ns 16550 (DesignWare UART) only allows word access, byte access will raise exception.
Direct dependencies¶
(UART_NS16550
&& SOC_ARC_HSDK
) || (UART_NS16550
&& SERIAL
)
(Includes any dependencies from ifs and menus.)
Default¶
y
Kconfig definitions¶
At <Zephyr>/soc/arc/snps_arc_hsdk/Kconfig.defconfig:43
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:25
→ <BuildDir>/Kconfig/Kconfig.soc.defconfig:1
Menu path: (Top)
config UART_NS16550_ACCESS_WORD_ONLY bool default y depends onUART_NS16550
&&SOC_ARC_HSDK
At <Zephyr>/drivers/serial/Kconfig.ns16550:36
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:32
→ <Zephyr>/drivers/Kconfig:24
→ <Zephyr>/drivers/serial/Kconfig:67
Menu path: (Top) → Device Drivers → Serial Drivers → NS16550 serial driver
config UART_NS16550_ACCESS_WORD_ONLY bool "NS16550 only allows word access" depends onUART_NS16550
&&SERIAL
help In some case, e.g. ARC HS Development kit, the peripheral space of ns 16550 (DesignWare UART) only allows word access, byte access will raise exception.
(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)