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List:       linux-serial
Subject:    [PATCH 0/6] Bridging PCI to amba
From:       Alessandro Rubini <rubini () gnudd ! com>
Date:       2012-05-25 15:47:48
Message-ID: cover.1337959750.git.rubini () gnudd ! com
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This patch set introduces use of the pl011 AMBA serial port under a
PCI bridge.  To compile AMBA under x86, though I need <asm/sizes.h>,
which is moved to <linux/sizes.h> as suggested earlier.

I'm hereby volunteering to handle the moving of the various users
of <asm/sizes.h> to <linux/sizes.h>; this set only moves the ARM core
files and the ones that I need under x86.

The whole patch set is sent to the same set of recipients:
all relevant lists, Russell King (for arm), Greg-KH (for uart) and
Arnd Bergmann (for generic include).

With this set in place (plus a clok API not included here) I have
4 serial ports working. We have a number of other devices that can
use existing drivers, but we definitely need <linux/sizes.h> first.

  spusa.root# uname -r
  3.4.0-next-20120524-00014-gae0c129

  spusa.root# dmesg | grep ttyA
  pl011-pci-03:0005: ttyAMA0 at MMIO 0xcf400000 (irq = 46) is a PL011 rev3
  pl011-pci-03:0006: ttyAMA1 at MMIO 0xcec00000 (irq = 47) is a PL011 rev3
  pl011-pci-03:0007: ttyAMA2 at MMIO 0xce400000 (irq = 48) is a PL011 rev3
  pl011-pci-04:0005: ttyAMA3 at MMIO 0xd3400000 (irq = 49) is a PL011 rev3

  spusa.root# grep -C1 pl011 /proc/iomem
          ce400000-ce7fffff : 0000:03:00.7
            ce400000-ce400fff : pl011-pci-03:0007
            ce400000-ce400fff : uart-pl011
          ce800000-cebfffff : 0000:03:00.6
          cec00000-ceffffff : 0000:03:00.6
            cec00000-cec00fff : pl011-pci-03:0006
            cec00000-cec00fff : uart-pl011
          cf000000-cf3fffff : 0000:03:00.5
          cf400000-cf7fffff : 0000:03:00.5
            cf400000-cf400fff : pl011-pci-03:0005
            cf400000-cf400fff : uart-pl011
          cf800000-cfbfffff : 0000:03:00.4
  --
          d3400000-d37fffff : 0000:04:00.5
            d3400000-d3400fff : pl011-pci-04:0005
            d3400000-d3400fff : uart-pl011
          d3800000-d3bfffff : 0000:04:00.4


Alessandro Rubini (6):
  sizes.h: move from asm-generic to <linux/sizes.h>
  amba: use the new linux/sizes.h
  ARM: use the new linux/sizes.h
  serial: use the new linux/sizes.h
  x86: add CONFIG_ARM_AMBA, selected by STA2X11
  serial: add amba-pl011-pci

 arch/arm/include/asm/memory.h       |    2 +-
 arch/arm/mm/dma-mapping.c           |    2 +-
 arch/arm/mm/init.c                  |    2 +-
 arch/arm/mm/ioremap.c               |    2 +-
 arch/arm/mm/mmu.c                   |    2 +-
 arch/x86/Kconfig                    |    4 ++
 drivers/amba/bus.c                  |    2 +-
 drivers/tty/serial/Kconfig          |   10 +++-
 drivers/tty/serial/Makefile         |    1 +
 drivers/tty/serial/amba-pl011-pci.c |  101 +++++++++++++++++++++++++++++++++++
 drivers/tty/serial/amba-pl011.c     |    2 +-
 include/asm-generic/sizes.h         |   49 +----------------
 include/linux/sizes.h               |   47 ++++++++++++++++
 13 files changed, 171 insertions(+), 55 deletions(-)
 create mode 100644 drivers/tty/serial/amba-pl011-pci.c
 create mode 100644 include/linux/sizes.h

-- 
1.7.7.2
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