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One more step to allowing MSM to participate in the
multi-platform defconfig.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[davidb: Comment cleanup requested by sboyd]
Signed-off-by: David Brown <davidb@codeaurora.org>
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Bit 3 of the SR register is set if there is a tx underrun. If
this bit isn't set, we should loop on the tx ready bit until we
can transmit again. Otherwise we should skip the loop and
transmit immediately. The code is doing the opposite though,
checking for an underrun and then looping on the tx ready bit
causing us to never loop on the tx read bit when the tx buffer
may not be ready.
This doesn't seem to affect my 8960 device too often, but in some
cases I see a lost character or two from the decompressor prints.
This also matches what we do in the assembly in debug-macro.S.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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With ARCH_HAS_DECOMP_WDOG removed from arch/arm/boot/compressed/decompress.c,
all the arch_decomp_wdog() definition at platform level is unneeded.
Remmove it.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Jason Cooper <jason@lakedaemon.net>
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To fix:
In file included from arm/boot/compressed/misc.c:28:0:
arm/mach-msm/include/mach/uncompress.h: In function 'putc':
arch/arm/mach-msm/include/mach/uncompress.h:48:3: error: implicit
declaration of function 'smp_mb' [-Werror=implicit-function-declaration]
The putc does a cpu_relax which for this platform is smp_mb.
Bisect indicates the 1st failing commit as: 0195c00244dc ("Merge tag
'split-asm_system_h...")
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add support for DEBUG_LL on the 8660 and 8960 development boards.
While we're here cleanup the uncompress.h code a bit. Avoid
the use of readl/writel as those are Linux specific APIs that
aren't guaranteed to work in the decompressor.
Cc: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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Provides options to select one of the three "lowspeed" UARTs
on MSM7k SoCs for DEBUG_LL output from the zImage decompressor
and kernel.
Signed-off-by: Brian Swetland <swetland@google.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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