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Disabling the L2 cache is not working in imx5_init_lowlevel() because
the necessary cache maintenance operations are missing. This often
results in cache corruption in a chainloaded barebox.
Disabling the cache is unnecessary: when we come from the ROM the L2
cache is disabled anyway, so disabling it is a no-op. When we get here
in a chainloaded barebox the L2 cache is already enabled and correctly
configured. So instead of initializing it again we can take an enabled
L2 cache as a sign to skip initialization and just return from the
function.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This file originates in Linux. Linux has it under include/linux/
directory since commit dccd2304cc90.
Let's move it to the same place as well in barebox.
This commit was generated by the following commands:
find -name '*.[chS]' | xargs sed -i -e 's:<sizes.h>:<linux/sizes.h>:'
git mv include/sizes.h include/linux/
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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- move code which can be shared between i.MX53 and i.MX51
to a common file
- rename mx53_init_lowlevel to imx53_init_lowlevel
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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