From 4e803c40b33822b52389952040f490e79973e94a Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Sat, 31 Jul 2010 21:40:10 +0530 Subject: omap4: l2x0: Override the default l2x0_disable The machine_kexec() calls outer_disable which can crash on OMAP4 becasue of trustzone restrictions. This patch overrides the default l2x0_disable with a OMAP4 specific implementation taking care of trustzone Signed-off-by: Santosh Shilimkar Reviewed-by: Tony Lindgren Acked-by: Linus Walleij --- arch/arm/mach-omap2/omap4-common.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c index 13dc9794dcc2..b557cc2c4b10 100644 --- a/arch/arm/mach-omap2/omap4-common.c +++ b/arch/arm/mach-omap2/omap4-common.c @@ -44,6 +44,13 @@ void __init gic_init_irq(void) } #ifdef CONFIG_CACHE_L2X0 + +static void omap4_l2x0_disable(void) +{ + /* Disable PL310 L2 Cache controller */ + omap_smc1(0x102, 0x0); +} + static int __init omap_l2_cache_init(void) { /* @@ -66,6 +73,12 @@ static int __init omap_l2_cache_init(void) */ l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff); + /* + * Override default outer_cache.disable with a OMAP4 + * specific one + */ + outer_cache.disable = omap4_l2x0_disable; + return 0; } early_initcall(omap_l2_cache_init); -- cgit v1.2.2