On Mon, 24 Nov 2014 15:36:15 -0800
, Kevin Cernekee <cernekee@xxxxxxxxx>
wrote:
> My last submission attempted to work around serial driver coexistence
> problems on multiplatform kernels. Since there are still questions
> surrounding the best way to solve that problem, this patch series
> will focus on the narrower topic of big endian MMIO support on serial.
>
>
> V2->V3:
>
> - Document the new DT properties.
>
> - Add libfdt-based wrapper, to complement the "struct device_node" based
> version.
>
> - Restructure early_init_dt_scan_chosen_serial() changes to use a
> temporary variable, so it is easy to add more of_setup_earlycon()
> properties later.
>
> - Make of_serial and serial8250 honor the new "big-endian" property.
>
>
> This series applies cleanly to:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux.git devicetree/next-overlay
>
> but was tested on the mips-for-linux-next branch because my BE platform
> isn't supported in mainline yet.
For the whole series:
Acked-by: Grant Likely <grant.likely@xxxxxxxxxx>
Greg, which tree do you want to merge this through? My DT tree, or the
tty tree?
g.
>
>
> Kevin Cernekee (7):
> of: Add helper function to check MMIO register endianness
> of/fdt: Add endianness helper function for early init code
> of: Document {little,big,native}-endian bindings
> serial: core: Add big-endian iotype
> serial: earlycon: Set UPIO_MEM32BE based on DT properties
> serial: of_serial: Support big-endian register accesses
> serial: 8250: Add support for big-endian MMIO accesses
>
> .../devicetree/bindings/common-properties.txt | 60 ++++++++++++++++++++++
> drivers/of/base.c | 23 +++++++++
> drivers/of/fdt.c | 26 +++++++++-
> drivers/tty/serial/8250/8250_core.c | 20 ++++++++
> drivers/tty/serial/8250/8250_early.c | 5 ++
> drivers/tty/serial/earlycon.c | 4 +-
> drivers/tty/serial/of_serial.c | 3 +-
> drivers/tty/serial/serial_core.c | 2 +
> include/linux/of.h | 6 +++
> include/linux/of_fdt.h | 2 +
> include/linux/serial_core.h | 15 +++---
> 11 files changed, 155 insertions(+), 11 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/common-properties.txt
>
> --
> 2.1.0
>
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