serial: group all the 8250 related code together

The drivers/tty/serial dir is already getting rather busy.
Relocate the 8250 related drivers to their own subdir to
reduce the clutter.

Note that sunsu.c is not included in this move -- it is
8250-like hardware, but it does not use any of the existing
infrastructure -- and does not depend on SERIAL_8250.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

24 files changed, 304 insertions, 289 deletions

diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250/8250.c
index 9f50c4e3c2be..9f50c4e3c2be 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250/8250.c
diff --git a/drivers/tty/serial/8250.h b/drivers/tty/serial/8250/8250.h
index ae027be57e25..ae027be57e25 100644
--- a/drivers/tty/serial/8250.h
+++ b/drivers/tty/serial/8250/8250.h
diff --git a/drivers/tty/serial/8250_accent.c b/drivers/tty/serial/8250/8250_accent.c
index 34b51c651192..34b51c651192 100644
--- a/drivers/tty/serial/8250_accent.c
+++ b/drivers/tty/serial/8250/8250_accent.c
diff --git a/drivers/tty/serial/8250_acorn.c b/drivers/tty/serial/8250/8250_acorn.c
index b0ce8c56f1a4..b0ce8c56f1a4 100644
--- a/drivers/tty/serial/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
diff --git a/drivers/tty/serial/8250_boca.c b/drivers/tty/serial/8250/8250_boca.c
index d125dc107985..d125dc107985 100644
--- a/drivers/tty/serial/8250_boca.c
+++ b/drivers/tty/serial/8250/8250_boca.c
diff --git a/drivers/tty/serial/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index f574eef3075f..f574eef3075f 100644
--- a/drivers/tty/serial/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
diff --git a/drivers/tty/serial/8250_early.c b/drivers/tty/serial/8250/8250_early.c
index eaafb98debed..eaafb98debed 100644
--- a/drivers/tty/serial/8250_early.c
+++ b/drivers/tty/serial/8250/8250_early.c
diff --git a/drivers/tty/serial/8250_exar_st16c554.c b/drivers/tty/serial/8250/8250_exar_st16c554.c
index bf53aabf9b5e..bf53aabf9b5e 100644
--- a/drivers/tty/serial/8250_exar_st16c554.c
+++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
diff --git a/drivers/tty/serial/8250_fourport.c b/drivers/tty/serial/8250/8250_fourport.c
index be1582609626..be1582609626 100644
--- a/drivers/tty/serial/8250_fourport.c
+++ b/drivers/tty/serial/8250/8250_fourport.c
diff --git a/drivers/tty/serial/8250_fsl.c b/drivers/tty/serial/8250/8250_fsl.c
index f4d3c47b88e8..f4d3c47b88e8 100644
--- a/drivers/tty/serial/8250_fsl.c
+++ b/drivers/tty/serial/8250/8250_fsl.c
diff --git a/drivers/tty/serial/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
index d8c0ffbfa6e3..d8c0ffbfa6e3 100644
--- a/drivers/tty/serial/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
diff --git a/drivers/tty/serial/8250_hp300.c b/drivers/tty/serial/8250/8250_hp300.c
index c13438c93012..c13438c93012 100644
--- a/drivers/tty/serial/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
diff --git a/drivers/tty/serial/8250_hub6.c b/drivers/tty/serial/8250/8250_hub6.c
index a5c778e83de0..a5c778e83de0 100644
--- a/drivers/tty/serial/8250_hub6.c
+++ b/drivers/tty/serial/8250/8250_hub6.c
diff --git a/drivers/tty/serial/8250_mca.c b/drivers/tty/serial/8250/8250_mca.c
index d20abf04541e..d20abf04541e 100644
--- a/drivers/tty/serial/8250_mca.c
+++ b/drivers/tty/serial/8250/8250_mca.c
diff --git a/drivers/tty/serial/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index da2b0b0a183f..da2b0b0a183f 100644
--- a/drivers/tty/serial/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
diff --git a/drivers/tty/serial/8250_pnp.c b/drivers/tty/serial/8250/8250_pnp.c
index a2f236510ff1..a2f236510ff1 100644
--- a/drivers/tty/serial/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
new file mode 100644
index 000000000000..591f8018e7dd
--- /dev/null
+++ b/drivers/tty/serial/8250/Kconfig
@@ -0,0 +1,280 @@
+#
+# The 8250/16550 serial drivers.  You shouldn't be in this list unless
+# you somehow have an implicit or explicit dependency on SERIAL_8250.
+#
+
+config SERIAL_8250
+        tristate "8250/16550 and compatible serial support"
+        select SERIAL_CORE
+        ---help---
+          This selects whether you want to include the driver for the standard
+          serial ports.  The standard answer is Y.  People who might say N
+          here are those that are setting up dedicated Ethernet WWW/FTP
+          servers, or users that have one of the various bus mice instead of a
+          serial mouse and don't intend to use their machine's standard serial
+          port for anything.  (Note that the Cyclades and Stallion multi
+          serial port drivers do not need this driver built in for them to
+          work.)
+
+          To compile this driver as a module, choose M here: the
+          module will be called 8250.
+          [WARNING: Do not compile this driver as a module if you are using
+          non-standard serial ports, since the configuration information will
+          be lost when the driver is unloaded.  This limitation may be lifted
+          in the future.]
+
+          BTW1: If you have a mouseman serial mouse which is not recognized by
+          the X window system, try running gpm first.
+
+          BTW2: If you intend to use a software modem (also called Winmodem)
+          under Linux, forget it.  These modems are crippled and require
+          proprietary drivers which are only available under Windows.
+
+          Most people will say Y or M here, so that they can use serial mice,
+          modems and similar devices connecting to the standard serial ports.
+
+config SERIAL_8250_CONSOLE
+        bool "Console on 8250/16550 and compatible serial port"
+        depends on SERIAL_8250=y
+        select SERIAL_CORE_CONSOLE
+        ---help---
+          If you say Y here, it will be possible to use a serial port as the
+          system console (the system console is the device which receives all
+          kernel messages and warnings and which allows logins in single user
+          mode). This could be useful if some terminal or printer is connected
+          to that serial port.
+
+          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=ttyS1". (Try "man bootparam" or see the documentation of
+          your boot loader (grub or lilo or loadlin) about how to pass options
+          to the kernel at boot time.)
+
+          If you don't have a VGA card installed and you say Y here, the
+          kernel will automatically use the first serial line, /dev/ttyS0, as
+          system console.
+
+          You can set that using a kernel command line option such as
+          "console=uart8250,io,0x3f8,9600n8"
+          "console=uart8250,mmio,0xff5e0000,115200n8".
+          and it will switch to normal serial console when the corresponding
+          port is ready.
+          "earlycon=uart8250,io,0x3f8,9600n8"
+          "earlycon=uart8250,mmio,0xff5e0000,115200n8".
+          it will not only setup early console.
+
+          If unsure, say N.
+
+config FIX_EARLYCON_MEM
+        bool
+        depends on X86
+        default y
+
+config SERIAL_8250_GSC
+        tristate
+        depends on SERIAL_8250 && GSC
+        default SERIAL_8250
+
+config SERIAL_8250_PCI
+        tristate "8250/16550 PCI device support" if EXPERT
+        depends on SERIAL_8250 && PCI
+        default SERIAL_8250
+        help
+          This builds standard PCI serial support. You may be able to
+          disable this feature if you only need legacy serial support.
+          Saves about 9K.
+
+config SERIAL_8250_PNP
+        tristate "8250/16550 PNP device support" if EXPERT
+        depends on SERIAL_8250 && PNP
+        default SERIAL_8250
+        help
+          This builds standard PNP serial support. You may be able to
+          disable this feature if you only need legacy serial support.
+
+config SERIAL_8250_HP300
+        tristate
+        depends on SERIAL_8250 && HP300
+        default SERIAL_8250
+
+config SERIAL_8250_CS
+        tristate "8250/16550 PCMCIA device support"
+        depends on PCMCIA && SERIAL_8250
+        ---help---
+          Say Y here to enable support for 16-bit PCMCIA serial devices,
+          including serial port cards, modems, and the modem functions of
+          multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are
+          credit-card size devices often used with laptops.)
+
+          To compile this driver as a module, choose M here: the
+          module will be called serial_cs.
+
+          If unsure, say N.
+
+config SERIAL_8250_NR_UARTS
+        int "Maximum number of 8250/16550 serial ports"
+        depends on SERIAL_8250
+        default "4"
+        help
+          Set this to the number of serial ports you want the driver
+          to support.  This includes any ports discovered via ACPI or
+          PCI enumeration and any ports that may be added at run-time
+          via hot-plug, or any ISA multi-port serial cards.
+
+config SERIAL_8250_RUNTIME_UARTS
+        int "Number of 8250/16550 serial ports to register at runtime"
+        depends on SERIAL_8250
+        range 0 SERIAL_8250_NR_UARTS
+        default "4"
+        help
+          Set this to the maximum number of serial ports you want
+          the kernel to register at boot time.  This can be overridden
+          with the module parameter "nr_uarts", or boot-time parameter
+          8250.nr_uarts
+
+config SERIAL_8250_EXTENDED
+        bool "Extended 8250/16550 serial driver options"
+        depends on SERIAL_8250
+        help
+          If you wish to use any non-standard features of the standard "dumb"
+          driver, say Y here. This includes HUB6 support, shared serial
+          interrupts, special multiport support, support for more than the
+          four COM 1/2/3/4 boards, etc.
+
+          Note that the answer to this question won't directly affect the
+          kernel: saying N will just cause the configurator to skip all
+          the questions about serial driver options. If unsure, say N.
+
+config SERIAL_8250_MANY_PORTS
+        bool "Support more than 4 legacy serial ports"
+        depends on SERIAL_8250_EXTENDED && !IA64
+        help
+          Say Y here if you have dumb serial boards other than the four
+          standard COM 1/2/3/4 ports. This may happen if you have an AST
+          FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available
+          from <http://www.tldp.org/docs.html#howto>), or other custom
+          serial port hardware which acts similar to standard serial port
+          hardware. If you only use the standard COM 1/2/3/4 ports, you can
+          say N here to save some memory. You can also say Y if you have an
+          "intelligent" multiport card such as Cyclades, Digiboards, etc.
+
+#
+# Multi-port serial cards
+#
+
+config SERIAL_8250_FOURPORT
+        tristate "Support Fourport cards"
+        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
+        help
+          Say Y here if you have an AST FourPort serial board.
+
+          To compile this driver as a module, choose M here: the module
+          will be called 8250_fourport.
+
+config SERIAL_8250_ACCENT
+        tristate "Support Accent cards"
+        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
+        help
+          Say Y here if you have an Accent Async serial board.
+
+          To compile this driver as a module, choose M here: the module
+          will be called 8250_accent.
+
+config SERIAL_8250_BOCA
+        tristate "Support Boca cards"
+        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
+        help
+          Say Y here if you have a Boca serial board.  Please read the Boca
+          mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>
+
+          To compile this driver as a module, choose M here: the module
+          will be called 8250_boca.
+
+config SERIAL_8250_EXAR_ST16C554
+        tristate "Support Exar ST16C554/554D Quad UART"
+        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
+        help
+          The Uplogix Envoy TU301 uses this Exar Quad UART.  If you are
+          tinkering with your Envoy TU301, or have a machine with this UART,
+          say Y here.
+
+          To compile this driver as a module, choose M here: the module
+          will be called 8250_exar_st16c554.
+
+config SERIAL_8250_HUB6
+        tristate "Support Hub6 cards"
+        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
+        help
+          Say Y here if you have a HUB6 serial board.
+
+          To compile this driver as a module, choose M here: the module
+          will be called 8250_hub6.
+
+#
+# Misc. options/drivers.
+#
+
+config SERIAL_8250_SHARE_IRQ
+        bool "Support for sharing serial interrupts"
+        depends on SERIAL_8250_EXTENDED
+        help
+          Some serial boards have hardware support which allows multiple dumb
+          serial ports on the same board to share a single IRQ. To enable
+          support for this in the serial driver, say Y here.
+
+config SERIAL_8250_DETECT_IRQ
+        bool "Autodetect IRQ on standard ports (unsafe)"
+        depends on SERIAL_8250_EXTENDED
+        help
+          Say Y here if you want the kernel to try to guess which IRQ
+          to use for your serial port.
+
+          This is considered unsafe; it is far better to configure the IRQ in
+          a boot script using the setserial command.
+
+          If unsure, say N.
+
+config SERIAL_8250_RSA
+        bool "Support RSA serial ports"
+        depends on SERIAL_8250_EXTENDED
+        help
+          ::: To be written :::
+
+config SERIAL_8250_MCA
+        tristate "Support 8250-type ports on MCA buses"
+        depends on SERIAL_8250 != n && MCA
+        help
+          Say Y here if you have a MCA serial ports.
+
+          To compile this driver as a module, choose M here: the module
+          will be called 8250_mca.
+
+config SERIAL_8250_ACORN
+        tristate "Acorn expansion card serial port support"
+        depends on ARCH_ACORN && SERIAL_8250
+        help
+          If you have an Atomwide Serial card or Serial Port card for an Acorn
+          system, say Y to this option.  The driver can handle 1, 2, or 3 port
+          cards.  If unsure, say N.
+
+config SERIAL_8250_RM9K
+        bool "Support for MIPS RM9xxx integrated serial port"
+        depends on SERIAL_8250 != n && SERIAL_RM9000
+        select SERIAL_8250_SHARE_IRQ
+        help
+          Selecting this option will add support for the integrated serial
+          port hardware found on MIPS RM9122 and similar processors.
+          If unsure, say N.
+
+config SERIAL_8250_FSL
+        bool
+        depends on SERIAL_8250_CONSOLE && PPC_UDBG_16550
+        default PPC
+
+config SERIAL_8250_DW
+        tristate "Support for Synopsys DesignWare 8250 quirks"
+        depends on SERIAL_8250 && OF
+        help
+          Selecting this option will enable handling of the extra features
+          present in the Synopsys DesignWare APB UART.
diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile
new file mode 100644
index 000000000000..867bba738908
--- /dev/null
+++ b/drivers/tty/serial/8250/Makefile
@@ -0,0 +1,20 @@
+#
+# Makefile for the 8250 serial device drivers.
+#
+
+obj-$(CONFIG_SERIAL_8250)               += 8250.o
+obj-$(CONFIG_SERIAL_8250_PNP)           += 8250_pnp.o
+obj-$(CONFIG_SERIAL_8250_GSC)           += 8250_gsc.o
+obj-$(CONFIG_SERIAL_8250_PCI)           += 8250_pci.o
+obj-$(CONFIG_SERIAL_8250_HP300)         += 8250_hp300.o
+obj-$(CONFIG_SERIAL_8250_CS)            += serial_cs.o
+obj-$(CONFIG_SERIAL_8250_ACORN)         += 8250_acorn.o
+obj-$(CONFIG_SERIAL_8250_CONSOLE)       += 8250_early.o
+obj-$(CONFIG_SERIAL_8250_FOURPORT)      += 8250_fourport.o
+obj-$(CONFIG_SERIAL_8250_ACCENT)        += 8250_accent.o
+obj-$(CONFIG_SERIAL_8250_BOCA)          += 8250_boca.o
+obj-$(CONFIG_SERIAL_8250_EXAR_ST16C554) += 8250_exar_st16c554.o
+obj-$(CONFIG_SERIAL_8250_HUB6)          += 8250_hub6.o
+obj-$(CONFIG_SERIAL_8250_MCA)           += 8250_mca.o
+obj-$(CONFIG_SERIAL_8250_FSL)           += 8250_fsl.o
+obj-$(CONFIG_SERIAL_8250_DW)            += 8250_dw.o
diff --git a/drivers/tty/serial/m32r_sio.c b/drivers/tty/serial/8250/m32r_sio.c
index 94a6792bf97b..94a6792bf97b 100644
--- a/drivers/tty/serial/m32r_sio.c
+++ b/drivers/tty/serial/8250/m32r_sio.c
diff --git a/drivers/tty/serial/m32r_sio.h b/drivers/tty/serial/8250/m32r_sio.h
index e9b7e11793b1..e9b7e11793b1 100644
--- a/drivers/tty/serial/m32r_sio.h
+++ b/drivers/tty/serial/8250/m32r_sio.h
diff --git a/drivers/tty/serial/m32r_sio_reg.h b/drivers/tty/serial/8250/m32r_sio_reg.h
index 4671473793e3..4671473793e3 100644
--- a/drivers/tty/serial/m32r_sio_reg.h
+++ b/drivers/tty/serial/8250/m32r_sio_reg.h
diff --git a/drivers/tty/serial/serial_cs.c b/drivers/tty/serial/8250/serial_cs.c
index 86090605a84e..86090605a84e 100644
--- a/drivers/tty/serial/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index aca2386c5ef1..0bff23897509 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -5,279 +5,7 @@
 menu "Serial drivers"
         depends on HAS_IOMEM
 
-#
-# The new 8250/16550 serial drivers
-config SERIAL_8250
-        tristate "8250/16550 and compatible serial support"
-        select SERIAL_CORE
-        ---help---
-          This selects whether you want to include the driver for the standard
-          serial ports.  The standard answer is Y.  People who might say N
-          here are those that are setting up dedicated Ethernet WWW/FTP
-          servers, or users that have one of the various bus mice instead of a
-          serial mouse and don't intend to use their machine's standard serial
-          port for anything.  (Note that the Cyclades and Stallion multi
-          serial port drivers do not need this driver built in for them to
-          work.)
-
-          To compile this driver as a module, choose M here: the
-          module will be called 8250.
-          [WARNING: Do not compile this driver as a module if you are using
-          non-standard serial ports, since the configuration information will
-          be lost when the driver is unloaded.  This limitation may be lifted
-          in the future.]
-
-          BTW1: If you have a mouseman serial mouse which is not recognized by
-          the X window system, try running gpm first.
-
-          BTW2: If you intend to use a software modem (also called Winmodem)
-          under Linux, forget it.  These modems are crippled and require
-          proprietary drivers which are only available under Windows.
-
-          Most people will say Y or M here, so that they can use serial mice,
-          modems and similar devices connecting to the standard serial ports.
-
-config SERIAL_8250_CONSOLE
-        bool "Console on 8250/16550 and compatible serial port"
-        depends on SERIAL_8250=y
-        select SERIAL_CORE_CONSOLE
-        ---help---
-          If you say Y here, it will be possible to use a serial port as the
-          system console (the system console is the device which receives all
-          kernel messages and warnings and which allows logins in single user
-          mode). This could be useful if some terminal or printer is connected
-          to that serial port.
-
-          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=ttyS1". (Try "man bootparam" or see the documentation of
-          your boot loader (grub or lilo or loadlin) about how to pass options
-          to the kernel at boot time.)
-
-          If you don't have a VGA card installed and you say Y here, the
-          kernel will automatically use the first serial line, /dev/ttyS0, as
-          system console.
-
-          You can set that using a kernel command line option such as
-          "console=uart8250,io,0x3f8,9600n8"
-          "console=uart8250,mmio,0xff5e0000,115200n8".
-          and it will switch to normal serial console when the corresponding 
-          port is ready.
-          "earlycon=uart8250,io,0x3f8,9600n8"
-          "earlycon=uart8250,mmio,0xff5e0000,115200n8".
-          it will not only setup early console.
-
-          If unsure, say N.
-
-config FIX_EARLYCON_MEM
-        bool
-        depends on X86
-        default y
-
-config SERIAL_8250_GSC
-        tristate
-        depends on SERIAL_8250 && GSC
-        default SERIAL_8250
-
-config SERIAL_8250_PCI
-        tristate "8250/16550 PCI device support" if EXPERT
-        depends on SERIAL_8250 && PCI
-        default SERIAL_8250
-        help
-          This builds standard PCI serial support. You may be able to
-          disable this feature if you only need legacy serial support.
-          Saves about 9K.
-
-config SERIAL_8250_PNP
-        tristate "8250/16550 PNP device support" if EXPERT
-        depends on SERIAL_8250 && PNP
-        default SERIAL_8250
-        help
-          This builds standard PNP serial support. You may be able to
-          disable this feature if you only need legacy serial support.
-
-config SERIAL_8250_FSL
-        bool
-        depends on SERIAL_8250_CONSOLE && PPC_UDBG_16550
-        default PPC
-
-config SERIAL_8250_HP300
-        tristate
-        depends on SERIAL_8250 && HP300
-        default SERIAL_8250
-
-config SERIAL_8250_CS
-        tristate "8250/16550 PCMCIA device support"
-        depends on PCMCIA && SERIAL_8250
-        ---help---
-          Say Y here to enable support for 16-bit PCMCIA serial devices,
-          including serial port cards, modems, and the modem functions of
-          multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are
-          credit-card size devices often used with laptops.)
-
-          To compile this driver as a module, choose M here: the
-          module will be called serial_cs.
-
-          If unsure, say N.
-
-config SERIAL_8250_NR_UARTS
-        int "Maximum number of 8250/16550 serial ports"
-        depends on SERIAL_8250
-        default "4"
-        help
-          Set this to the number of serial ports you want the driver
-          to support.  This includes any ports discovered via ACPI or
-          PCI enumeration and any ports that may be added at run-time
-          via hot-plug, or any ISA multi-port serial cards.
-
-config SERIAL_8250_RUNTIME_UARTS
-        int "Number of 8250/16550 serial ports to register at runtime"
-        depends on SERIAL_8250
-        range 0 SERIAL_8250_NR_UARTS
-        default "4"
-        help
-          Set this to the maximum number of serial ports you want
-          the kernel to register at boot time.  This can be overridden
-          with the module parameter "nr_uarts", or boot-time parameter
-          8250.nr_uarts
-
-config SERIAL_8250_EXTENDED
-        bool "Extended 8250/16550 serial driver options"
-        depends on SERIAL_8250
-        help
-          If you wish to use any non-standard features of the standard "dumb"
-          driver, say Y here. This includes HUB6 support, shared serial
-          interrupts, special multiport support, support for more than the
-          four COM 1/2/3/4 boards, etc.
-
-          Note that the answer to this question won't directly affect the
-          kernel: saying N will just cause the configurator to skip all
-          the questions about serial driver options. If unsure, say N.
-
-config SERIAL_8250_MANY_PORTS
-        bool "Support more than 4 legacy serial ports"
-        depends on SERIAL_8250_EXTENDED && !IA64
-        help
-          Say Y here if you have dumb serial boards other than the four
-          standard COM 1/2/3/4 ports. This may happen if you have an AST
-          FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available
-          from <http://www.tldp.org/docs.html#howto>), or other custom
-          serial port hardware which acts similar to standard serial port
-          hardware. If you only use the standard COM 1/2/3/4 ports, you can
-          say N here to save some memory. You can also say Y if you have an
-          "intelligent" multiport card such as Cyclades, Digiboards, etc.
-
-#
-# Multi-port serial cards
-#
-
-config SERIAL_8250_FOURPORT
-        tristate "Support Fourport cards"
-        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
-        help
-          Say Y here if you have an AST FourPort serial board.
-
-          To compile this driver as a module, choose M here: the module
-          will be called 8250_fourport.
-
-config SERIAL_8250_ACCENT
-        tristate "Support Accent cards"
-        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
-        help
-          Say Y here if you have an Accent Async serial board.
-
-          To compile this driver as a module, choose M here: the module
-          will be called 8250_accent.
-
-config SERIAL_8250_BOCA
-        tristate "Support Boca cards"
-        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
-        help
-          Say Y here if you have a Boca serial board.  Please read the Boca
-          mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>
-
-          To compile this driver as a module, choose M here: the module
-          will be called 8250_boca.
-
-config SERIAL_8250_EXAR_ST16C554
-        tristate "Support Exar ST16C554/554D Quad UART"
-        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
-        help
-          The Uplogix Envoy TU301 uses this Exar Quad UART.  If you are
-          tinkering with your Envoy TU301, or have a machine with this UART,
-          say Y here.
-
-          To compile this driver as a module, choose M here: the module
-          will be called 8250_exar_st16c554.
-
-config SERIAL_8250_HUB6
-        tristate "Support Hub6 cards"
-        depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
-        help
-          Say Y here if you have a HUB6 serial board.
-
-          To compile this driver as a module, choose M here: the module
-          will be called 8250_hub6.
-
-config SERIAL_8250_SHARE_IRQ
-        bool "Support for sharing serial interrupts"
-        depends on SERIAL_8250_EXTENDED
-        help
-          Some serial boards have hardware support which allows multiple dumb
-          serial ports on the same board to share a single IRQ. To enable
-          support for this in the serial driver, say Y here.
-
-config SERIAL_8250_DETECT_IRQ
-        bool "Autodetect IRQ on standard ports (unsafe)"
-        depends on SERIAL_8250_EXTENDED
-        help
-          Say Y here if you want the kernel to try to guess which IRQ
-          to use for your serial port.
-
-          This is considered unsafe; it is far better to configure the IRQ in
-          a boot script using the setserial command.
-
-          If unsure, say N.
-
-config SERIAL_8250_RSA
-        bool "Support RSA serial ports"
-        depends on SERIAL_8250_EXTENDED
-        help
-          ::: To be written :::
-
-config SERIAL_8250_MCA
-        tristate "Support 8250-type ports on MCA buses"
-        depends on SERIAL_8250 != n && MCA
-        help
-          Say Y here if you have a MCA serial ports.
-
-          To compile this driver as a module, choose M here: the module
-          will be called 8250_mca.
-
-config SERIAL_8250_ACORN
-        tristate "Acorn expansion card serial port support"
-        depends on ARCH_ACORN && SERIAL_8250
-        help
-          If you have an Atomwide Serial card or Serial Port card for an Acorn
-          system, say Y to this option.  The driver can handle 1, 2, or 3 port
-          cards.  If unsure, say N.
-
-config SERIAL_8250_RM9K
-        bool "Support for MIPS RM9xxx integrated serial port"
-        depends on SERIAL_8250 != n && SERIAL_RM9000
-        select SERIAL_8250_SHARE_IRQ
-        help
-          Selecting this option will add support for the integrated serial
-          port hardware found on MIPS RM9122 and similar processors.
-          If unsure, say N.
-
-config SERIAL_8250_DW
-        tristate "Support for Synopsys DesignWare 8250 quirks"
-        depends on SERIAL_8250 && OF
-        help
-          Selecting this option will enable handling of the extra features
-          present in the Synopsys DesignWare APB UART.
+source "drivers/tty/serial/8250/Kconfig"
 
 comment "Non-8250 serial port support"
 
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index f5b01f2ce525..a6d1ac049965 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -14,22 +14,9 @@ obj-$(CONFIG_SERIAL_SUNZILOG) += sunzilog.o
 obj-$(CONFIG_SERIAL_SUNSU) += sunsu.o
 obj-$(CONFIG_SERIAL_SUNSAB) += sunsab.o
 
-obj-$(CONFIG_SERIAL_8250) += 8250.o
-obj-$(CONFIG_SERIAL_8250_PNP) += 8250_pnp.o
-obj-$(CONFIG_SERIAL_8250_GSC) += 8250_gsc.o
-obj-$(CONFIG_SERIAL_8250_PCI) += 8250_pci.o
-obj-$(CONFIG_SERIAL_8250_HP300) += 8250_hp300.o
-obj-$(CONFIG_SERIAL_8250_CS) += serial_cs.o
-obj-$(CONFIG_SERIAL_8250_ACORN) += 8250_acorn.o
-obj-$(CONFIG_SERIAL_8250_CONSOLE) += 8250_early.o
-obj-$(CONFIG_SERIAL_8250_FOURPORT) += 8250_fourport.o
-obj-$(CONFIG_SERIAL_8250_ACCENT) += 8250_accent.o
-obj-$(CONFIG_SERIAL_8250_BOCA) += 8250_boca.o
-obj-$(CONFIG_SERIAL_8250_EXAR_ST16C554) += 8250_exar_st16c554.o
-obj-$(CONFIG_SERIAL_8250_HUB6) += 8250_hub6.o
-obj-$(CONFIG_SERIAL_8250_MCA) += 8250_mca.o
-obj-$(CONFIG_SERIAL_8250_FSL) += 8250_fsl.o
-obj-$(CONFIG_SERIAL_8250_DW) += 8250_dw.o
+# Now bring in any enabled 8250/16450/16550 type drivers.
+obj-$(CONFIG_SERIAL_8250) += 8250/
+
 obj-$(CONFIG_SERIAL_AMBA_PL010) += amba-pl010.o
 obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011.o
 obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o