linux-sg2042/arch/sh
Paul Mundt 272966c070 serial: sh-sci: Reorder the SCxTDR write after the TDxE clear.
Under qemu there is a race between the TDxE read-and-clear and the SCxTDR
write. While on hardware it can be gauranteed that the read-and-clear
will happen prior to the character being written out, no such assumption
can be made under emulation. As this path happens with IRQs off and the
hardware itself doesn't care about the ordering, move the SCxTDR write
until after the read-and-clear.

Signed-off-by: Vladimir Prus <vladimir@codesourcery.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13 17:46:06 +09:00
..
boards sh: mach-highlander: Handle SCIF pinmuxing on R7785RP. 2008-10-23 12:35:43 +09:00
boot sh: FTRACE renamed to FUNCTION_TRACER. 2008-10-31 16:20:36 +09:00
cchips sh: Kill off long-dead HD64465 cchip support. 2008-10-28 20:07:44 +09:00
configs sh: Enable NFS root in Migo-R defconfig. 2008-10-31 16:22:31 +09:00
drivers sh: Migrate common board headers to mach-common/. 2008-10-20 13:02:48 +09:00
include sh: Provide a sane valid_phys_addr_range() to prevent TLB reset with PMB. 2008-11-12 12:53:48 +09:00
kernel serial: sh-sci: Reorder the SCxTDR write after the TDxE clear. 2008-11-13 17:46:06 +09:00
lib sh: __copy_user function can corrupt the stack in case of exception 2008-11-13 17:40:30 +09:00
lib64 sh: migrate to arch/sh/include/ 2008-07-29 08:09:44 +09:00
math-emu sh: Fix up the math-emu build. 2007-06-11 15:57:42 +09:00
mm sh: Don't factor in PAGE_OFFSET for valid_phys_addr_range() check. 2008-11-13 15:38:02 +09:00
oprofile sh: oprofile: Fix up the SH7750 performance counter name. 2008-10-27 09:51:45 +09:00
tools sh: Kill off long-dead HD64465 cchip support. 2008-10-28 20:07:44 +09:00
Kconfig sh: FTRACE renamed to FUNCTION_TRACER. 2008-10-31 16:20:36 +09:00
Kconfig.cpu sh: Disable big endian for SH-5. 2008-02-14 14:22:10 +09:00
Kconfig.debug sh: Disable 4kB stacks when using PAGE_SIZE_64KB. 2008-09-20 20:16:35 +09:00
Makefile sh: SHmedia ISA tuning fixups. 2008-10-31 15:58:53 +09:00