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arm: mvebu: Add v7_outer_cache_disable function for AXP & A38x

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Add functionality to correctly disable the L2 cache on the Armada XP
and 38x platforms.

Without this, booting into Linux on ClearFog (A38x) results in a hangup
without any output on the serial console at all. Even with earlyprintk
enabled.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
This commit is contained in:
Stefan Roese
2015-12-14 12:31:48 +01:00
parent 3e5ce7ceeb
commit f0e8173a38
1 changed files with 8 additions and 0 deletions
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8
arch/arm/mach-mvebu/cpu.c
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@@ -422,3 +422,11 @@ void v7_outer_cache_enable(void)
setbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN);
}
}
void v7_outer_cache_disable(void)
{
struct pl310_regs *const pl310 =
(struct pl310_regs *)CONFIG_SYS_PL310_BASE;
clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN);
}