[PATCH 0/6] DT early console initialization

[Rob Herring <robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

From: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

This series adds support for early serial console initialization using 
DT. This enables determining the serial port type and address using the 
FDT and allows enabling the console before platform specific 
initialization runs. I've tested this on arm64. ARM support is dependent 
on adding fixmap support.

Currently, the earlycon is only enabled if "earlycon" is present on the 
kernel command line. The FDT needs to have /chosen/stdout-path set to 
the path of the serial port.

This series is dependent on generic earlycon[1], libfdt support[2], and 
vmlinux.lds.h clean-ups[3]. The first 2 are in linux-next already. A git 
branch is available here:

git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git earlycon-dt

Rob

[1] https://lkml.org/lkml/2014/4/18/573
[2] https://lkml.org/lkml/2014/4/22/1202
[3] https://lkml.org/lkml/2014/3/27/285

Rob Herring (6):
  of: align RESERVEDMEM_OF_DECLARE function callbacks to other callbacks
  of: consolidate linker section OF match table declarations
  serial: earlycon: add DT support
  of/fdt: add FDT address translation support
  of/fdt: add FDT serial scanning for earlycon
  tty/serial: pl011: add DT based earlycon support

 drivers/clocksource/clksrc-of.c   |   2 +-
 drivers/irqchip/irqchip.h         |   7 +-
 drivers/of/Makefile               |   2 +
 drivers/of/fdt.c                  |  56 +++++++++
 drivers/of/fdt_address.c          | 241 ++++++++++++++++++++++++++++++++++++++
 drivers/of/of_reserved_mem.c      |   2 +-
 drivers/tty/serial/amba-pl011.c   |   1 +
 drivers/tty/serial/earlycon.c     |  27 +++++
 include/asm-generic/vmlinux.lds.h |   4 +-
 include/linux/clk-provider.h      |   5 +-
 include/linux/clocksource.h       |  16 +--
 include/linux/of.h                |  22 ++++
 include/linux/of_fdt.h            |   1 +
 include/linux/of_reserved_mem.h   |  22 +---
 include/linux/serial_core.h       |   6 +
 15 files changed, 372 insertions(+), 42 deletions(-)
 create mode 100644 drivers/of/fdt_address.c

-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html