UART: add CSR SiRFprimaII SoC on-chip uart drivers
PATCH v2 1/1 UART: add CSR SiRFprimaII SoC on-chip uart drivers
From: Rong Wang <[email protected]>
SiRFprimaII is the latest generation application processor from CSR?s multi-function SoC product family.
The SoC support codes are in arch/arm/mach-prima2 from Linux mainline 3.0.
There are three dedicated UARTs in system. This patch adds basic driver support for them.
It has used the newest pinmux subsystem from Linus Walleij.
---
-v2:
rename device name from ttyS to ttySiRF;
use dynamic device major and minor;
support non-Bxxx baudrate;
fix other minor issues Alan Cox required.
drivers/tty/serial/Kconfig | 21 + drivers/tty/serial/Makefile | 1 + drivers/tty/serial/sirfsoc_uart.c | 783 +++++++++++++++++++++++++++++++++++++ drivers/tty/serial/sirfsoc_uart.h | 185 +++++++++ 4 files changed, 990 insertions(+), 0 deletions(-) create mode 100644 drivers/tty/serial/sirfsoc_uart.c create mode 100644 drivers/tty/serial/sirfsoc_uart.h
drivers/tty/serial/Kconfig +21 -0
@@ -528,6 +528,27 @@ config SERIAL_S5PV210 help Serial port support for Samsung's S5P Family of SoC's +config SERIAL_SIRFSOC + tristate "SiRF SoC Platform Serial port support" + depends on ARM && ARCH_PRIMA2 + select SERIAL_CORE + help + Support for the on-chip UART on the CSR SiRFprimaII series, + providing /dev/ttyS0, 1 and 2 (note, some machines may not + provide all of these ports, depending on how the serial port + pins are configured. + +config SERIAL_SIRFSOC_CONSOLE + bool "Support for console on SiRF SoC serial port" + depends on SERIAL_SIRFSOC=y + select SERIAL_CORE_CONSOLE + help + Even if you say Y here, the currently visible virtual console + (/dev/tty0) will still be used as the system console by default, but + you can alter that using a kernel command line option such as + "console=ttySiRFx". (Try "man bootparam" or see the documentation of + your boot loader about how to pass options to the kernel at + boot time.) config SERIAL_MAX3100 tristate "MAX3100 support"
drivers/tty/serial/Makefile +1 -0
@@ -94,3 +94,4 @@ obj-$(CONFIG_SERIAL_MSM_SMD) += msm_smd_tty.o obj-$(CONFIG_SERIAL_MXS_AUART) += mxs-auart.o obj-$(CONFIG_SERIAL_LANTIQ) += lantiq.o obj-$(CONFIG_SERIAL_XILINX_PS_UART) += xilinx_uartps.o +obj-$(CONFIG_SERIAL_SIRFSOC) += sirfsoc_uart.o
drivers/tty/serial/sirfsoc_uart.c new file +783 -0
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drivers/tty/serial/sirfsoc_uart.h new file +185 -0
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PATCH v2 1/1 UART: add CSR SiRFprimaII SoC on-chip uart drivers
2011/10/14 Barry Song <[email protected]>:
Quoted 11 lines
From: Rong Wang <[email protected]>
SiRFprimaII is the latest generation application processor from CSR?s multi-function SoC product family.
The SoC support codes are inarch/arm/mach-prima2from Linux mainline 3.0.There are three dedicated UARTs in system. This patch adds basic driver support for them.
It has used the newest pinmux subsystem from Linus Walleij.
Hi Alan, it means this patch doesn't compile until pinmux tree of Linus Walleij is merged into mainline.
Now it is a linux next tree.
Quoted 5 lines
Cc Linus Walleij <[email protected]>Signed-off-by Rong Wang <[email protected]>Signed-off-by Bin Shi <[email protected]>Signed-off-by Barry Song <[email protected]>
Quoted 7 lines
---
?-v2:
?rename device name from ttyS to ttySiRF;
?use dynamic device major and minor;
?support non-Bxxx baudrate;
?fix other minor issues Alan Cox required.
-barry
PATCH v2 1/1 UART: add CSR SiRFprimaII SoC on-chip uart drivers
Quoted 8 lines · Barry Song
2011/10/14 Barry Song <[email protected]>:
Quoted 7 lines
From: Rong Wang <[email protected]>
SiRFprimaII is the latest generation application processor from CSR?s multi-function SoC product family.
The SoC support codes are inarch/arm/mach-prima2from Linux mainline 3.0.
Quoted 8 lines
Quoted 4 lines
There are three dedicated UARTs in system. This patch adds basic driver support for them.
It has used the newest pinmux subsystem from Linus Walleij.
Hi Alan, it means this patch doesn't compile until pinmux tree of Linus Walleij is merged into mainline.
Now it is a linux next tree.
So should it go through the pinmux tree? Or do you want to wait for the 3.3 kernel release to get this merged?
thanks,
greg k-h
PATCH v2 1/1 UART: add CSR SiRFprimaII SoC on-chip uart drivers
2011/10/19 Greg KH <[email protected]>:
Quoted 12 lines · Barry Song
Quoted 11 lines
2011/10/14 Barry Song <[email protected]>:
Quoted 10 lines
From: Rong Wang <[email protected]>
SiRFprimaII is the latest generation application processor from CSR?s multi-function SoC product family.
The SoC support codes are inarch/arm/mach-prima2from Linux mainline 3.0.There are three dedicated UARTs in system. This patch adds basic driver support for them.
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
It has used the newest pinmux subsystem from Linus Walleij.
Hi Alan, it means this patch doesn't compile until pinmux tree of Linus Walleij is merged into mainline.
Now it is a linux next tree.So should it go through the pinmux tree? ?Or do you want to wait for the 3.3 kernel release to get this merged?
i think we can go ahead through Linux W's pinmux tree. Linus, would you like to take care once Alan ack this.
Quoted 4 lines
thanks,
greg k-h
-barry
PATCH v2 1/1 UART: add CSR SiRFprimaII SoC on-chip uart drivers
Quoted 3 lines
i think we can go ahead through Linux W's pinmux tree. Linus, would you like to take care once Alan ack this.
Fine by me
PATCH v2 1/1 UART: add CSR SiRFprimaII SoC on-chip uart drivers
In reply to Barry Song2011/10/19 Barry Song <[email protected]>:
Quoted 6 lines
2011/10/19 Greg KH <[email protected]>:
Quoted 2 lines
So should it go through the pinmux tree? ?Or do you want to wait for the 3.3 kernel release to get this merged?
i think we can go ahead through Linux W's pinmux tree. Linus, would you like to take care once Alan ack this.
It's a bit late, and I don't know if Torvalds will pull my pin control tree yet, that's uncertain since it's an all new subsystem. It's stabilizing for the merge window.
I would suggest that you see if my tree gets pulled in the merge window, and if and when it does, send the patch as a single patch directly to Torvalds with Alan's ACK and explain the situation with cross-dependence and all.
Linus Walleij
PATCH v2 1/1 UART: add CSR SiRFprimaII SoC on-chip uart drivers
2011/10/20 Linus Walleij <[email protected]>:
Quoted 8 lines
2011/10/19 Barry Song <[email protected]>:
Quoted 6 lines
2011/10/19 Greg KH <[email protected]>:
Quoted 2 lines
So should it go through the pinmux tree? ?Or do you want to wait for the 3.3 kernel release to get this merged?
i think we can go ahead through Linux W's pinmux tree. Linus, would you like to take care once Alan ack this.
Quoted 8 lines
It's a bit late, and I don't know if Torvalds will pull my pin control tree yet, that's uncertain since it's an all new subsystem. It's stabilizing for the merge window.
I would suggest that you see if my tree gets pulled in the merge window, and if and when it does, send the patch as a single patch directly to Torvalds with Alan's ACK and explain the situation with cross-dependence and all.
thanks. that is ok to me. i suppose Torvalds will pull your tree in this merge window or next.
if this window, i will send that to Torvalds, if next, i'd like to go through this tree and get merged in 3.3 together with your pinmux.
Quoted 3 lines
Linus Walleij
-barry
PATCH v2 1/1 UART: add CSR SiRFprimaII SoC on-chip uart drivers
In reply to Linus Walleij2011/10/20 Linus Walleij <[email protected]>:
Quoted 8 lines
2011/10/19 Barry Song <[email protected]>:
Quoted 6 lines
2011/10/19 Greg KH <[email protected]>:
Quoted 2 lines
So should it go through the pinmux tree? ?Or do you want to wait for the 3.3 kernel release to get this merged?
i think we can go ahead through Linux W's pinmux tree. Linus, would you like to take care once Alan ack this.
Quoted 8 lines
It's a bit late, and I don't know if Torvalds will pull my pin control tree yet, that's uncertain since it's an all new subsystem. It's stabilizing for the merge window.
I would suggest that you see if my tree gets pulled in the merge window, and if and when it does, send the patch as a single patch directly to Torvalds with Alan's ACK and explain the situation with cross-dependence and all.
i am glad to find your pinctrl tree has been merged by Torvalds. so i will send this uart driver patch depending on your tree to Linus Torvalds directly.
Quoted 3 lines
Linus Walleij
thanks
barry