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 --- arch/arm/mach-mvebu/cpu.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm/mach-mvebu/cpu.c b/arch/arm/mach-mvebu/cpu.c index 74087e2..fd56c99 100644 --- a/arch/arm/mach-mvebu/cpu.c +++ b/arch/arm/mach-mvebu/cpu.c @@ -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); +}