[PATCH v2 -next 00/14] OF earlycon cleanup

From: Peter Hurley
Date: Fri Mar 06 2015 - 14:25:48 EST

I thought I'd respin this to address the bugs in v1.

I'm still having an open conversation with Rob Herring about the
OF_EARLYCON_DECLARE macro and earlycon console names.

* Changes from v1 *

- Rebase on top of device-tree compiler patch submission,
"libfdt: Add fdt_path_offset_namelen()"
- Fixed x86 build breakage, conditionally compile of_setup_earlycon();
Note: this should have already been the case since of_setup_earlycon()
is dead code without CONFIG_OF_EARLY_FLATTREE
- Fixed Geert's suggestion to change the printf specifier for ->mapbase
- Fixed initial console index value for earlycon name without trailing

Hi Greg, Grant & Rob,

This patch series builds on my earlier "Extensible console matching &
direct earlycon" to add several useful features to earlycon:
* Proper port i/o configuration from DT node with of_serial properties
(such as reg-io-width, reg-shift and reg-offset)
* Proper console name & index initialization from earlycon name
(for both command line and DT-defined earlycons)
* Support for DT 'stdout-path' options pass-through to earlycon setup
* Improved log messages for troubleshooting
* Support for multiple OF earlycon declarations so different
compatible strings can specify the same OF earlycon

Lastly, this patch series adds an omap8250 OF earlycon. I don't think
the last patch requires the "Split 8250 driver" to work but it won't
apply cleanly without it.

Requires: 1) "libfdt: Add fdt_path_offset_namelen()"
2) the last patch which adds omap8250 earlycon requires some
kind of fixmap support, such as "ARM: early fixmap support
for earlycon", which has not yet been accepted upstream.


Peter Hurley (14):
of: earlycon: Fix 'stdout-path' with ':' path terminator
serial: earlycon: Fixup earlycon console name and index
serial: earlycon: Emit earlycon name in the OF table
of: earlycon: Fixup earlycon console name and index
of: earlycon: Add options string handling
of: earlycon: of_setup_earlycon() requires CONFIG_OF_EARLY_FLATTREE
of: earlycon: Initialize port fields from DT properties
of: earlycon: Move address translation to of_setup_earlycon()
serial: earlycon: Common log banner for command line and DT
serial: earlycon: Show the earlycon "driver" in banner
of: earlycon: Allow multiple OF_EARLYCON_DECLARE() with same name
of: earlycon: Log more helpful message if earlycon not found
serial: 8250_early: Use port->regshift
serial: 8250_omap: Add omap8250 earlycon

drivers/of/fdt.c | 18 +++----
drivers/of/fdt_address.c | 11 +++-
drivers/tty/serial/8250/8250_early.c | 29 +++++++++-
drivers/tty/serial/earlycon.c | 100 ++++++++++++++++++++++++++++-------
include/linux/of_fdt.h | 2 +-
include/linux/serial_core.h | 20 +++++--
6 files changed, 144 insertions(+), 36 deletions(-)


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