Re: [PATCH v3 00/13] Earlycon cleanup

[Peter Hurley]

On 04/08/2015 01:45 PM, Peter Hurley wrote:
> 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
> 
> * 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
>   numerals
> 
> * Changes from v2 *
> 
> - All earlycon declarations are now in a single table, with a common
>   framework for devicetree and command line earlycons
> 
> 
> Requires: 1) "libfdt: Add fdt_path_offset_namelen()" -- now in
> 	     upstream dtc

also requires "earlycon: Fix __earlycon_table stride"


> 	  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.
> 
> Regards,
> 
> Peter Hurley (13):
>   of: earlycon: Fix 'stdout-path' with ':' path terminator
>   earlycon: Use common framework for earlycon declarations
>   serial: earlycon: Fixup earlycon console name and index
>   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: Log more helpful message if earlycon not found
>   serial: 8250_early: Use port->regshift
>   serial: 8250_omap: Add omap8250 earlycon
> 
>  drivers/of/fdt.c                     |  28 ++++-----
>  drivers/of/fdt_address.c             |  11 +++-
>  drivers/tty/serial/8250/8250_early.c |  29 +++++++++-
>  drivers/tty/serial/amba-pl011.c      |   1 -
>  drivers/tty/serial/arc_uart.c        |   1 -
>  drivers/tty/serial/earlycon.c        | 109 ++++++++++++++++++++++++++---------
>  drivers/tty/serial/msm_serial.c      |   2 -
>  drivers/tty/serial/samsung.c         |   6 --
>  drivers/tty/serial/sprd_serial.c     |   2 -
>  include/asm-generic/vmlinux.lds.h    |   8 +--
>  include/linux/of_fdt.h               |   2 +-
>  include/linux/serial_core.h          |  25 ++++----
>  12 files changed, 151 insertions(+), 73 deletions(-)
> 

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