[PATCH v3 7/7] tty: add pruss SUART driver
From: Randy Dunlap <hidden>
Date: 2011-03-08 18:49:07
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On Tue, 8 Mar 2011 19:27:46 +0530 Subhasish Ghosh wrote:
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This patch adds support for the TTY compliant Soft-UART device emulated on PRUSS. This patch depends on: davinci: macro rename DA8XX_LPSC0_DMAX to DA8XX_LPSC0_PRUSS. https://patchwork.kernel.org/patch/615681/ davinci: changed SRAM allocator to shared ram. https://patchwork.kernel.org/patch/549351/ Signed-off-by: Subhasish Ghosh <redacted> --- drivers/tty/serial/Kconfig | 22 + drivers/tty/serial/Makefile | 10 + drivers/tty/serial/pruss_suart.c | 1058 +++++++++++++++++++ drivers/tty/serial/pruss_suart.h | 1081 ++++++++++++++++++++ drivers/tty/serial/pruss_suart_api.c | 1757 ++++++++++++++++++++++++++++++++ drivers/tty/serial/pruss_suart_utils.c | 391 +++++++ include/linux/serial_core.h | 2 + 7 files changed, 4321 insertions(+), 0 deletions(-) create mode 100644 drivers/tty/serial/pruss_suart.c create mode 100644 drivers/tty/serial/pruss_suart.h create mode 100644 drivers/tty/serial/pruss_suart_api.c create mode 100644 drivers/tty/serial/pruss_suart_utils.cdiff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 2b83346..14ea0a3 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig@@ -1596,4 +1596,26 @@ config SERIAL_PCH_UART This driver is for PCH(Platform controller Hub) UART of Intel EG20T which is an IOH(Input/Output Hub) for x86 embedded processor. Enabling PCH_DMA, this PCH UART works as DMA mode. + +# +# SUART Kernel Configuration +# + +config SERIAL_PRUSS_SUART + depends on ARCH_DAVINCI && ARCH_DAVINCI_DA850 + select SERIAL_CORE + tristate "PRUSS based SoftUART emulation on DA8XX" + ---help--- + This driver emulates upto eight different UARTs on the PRUSS.
up to
+ You may modify the NR_SUARTS macro in the driver to emulate + less number of UARTS as per your requirement. + If not sure, mark N
mark N.
+ +config PRUSS_SUART_MCASP + int "McASP number" + depends on ARCH_DAVINCI && ARCH_DAVINCI_DA830 && SERIAL_PRUSS_SUART + default "0" + ---help--- + Enter the McASP number to use with SUART (0, 1 or 2). + You will need to recompile the kernel if this is changed.
The 2 help text lines should be indented the same.
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--- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code ***