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3 Commits

Author SHA1 Message Date
Vineet Gupta
ffb7fcd66f ARC: Dynamically determine BASE_BAUD from DeviceTree 
8250 earlycon is broken on multi-platform ARC because the UART clk
value (BASE_BAUD) is fixed at build time.

Instead, determine the appropriate UART clk at runtime; parse the
devicetree early for platforms requiring alternate UART clk values
(currently only the TB10X platform).

Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Rob Herring <robh@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
 2015-02-02 17:08:37 +05:30
Christian Ruppert
072eb69390 ARC: [TB10x] Add support for TB10x platform 
Infrastructure required to make the Linux kernel compile and boot on the
Abilis Systems TB10x series of SOCs based on ARC700 CPUs:
  - Kmake related files (Kconfig, Makefile, tb10x_defconfig)
  - TB10x platform initialisation

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Pierrick Hascoet <pierrick.hascoet@abilis.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
 2013-05-07 13:43:59 +05:30
Vineet Gupta
0208c96a9d ARC: Provide a default serial.h for uart drivers needing BASE_BAUD 
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
 2013-02-15 23:16:18 +05:30