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authorCatalin Marinas <catalin.marinas@arm.com>2007-02-15 13:05:29 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-02-16 08:06:56 -0500
commit0e0ba76926c37f11f38670db0cb33728f502551e (patch)
treeef6c4b005b64fe9c42a2a9cd903442b1e252797d /drivers/serial
parent7770bddb27ea84519486d8bb5d35d36d580c451b (diff)
[ARM] 4201/1: SMP barriers pair needed for the secondary boot process
In some situations, the pen_release store in platform_secondary_init() may stay forever in the write buffer while the CPU is waiting on the boot_lock to be released in boot_secondary(). The primary CPU could never see the pen_release update without the barriers. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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