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| author | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2010-07-31 18:10:10 +0200 |
|---|---|---|
| committer | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2010-10-26 08:10:00 +0200 |
| commit | 4e803c40b33822b52389952040f490e79973e94a (patch) | |
| tree | 389ec7520f58b7ac136fb6853efbe3ff997740d5 /arch | |
| parent | arm: Implement l2x0 cache disable functions (diff) | |
| download | linux-4e803c40b33822b52389952040f490e79973e94a.tar.xz linux-4e803c40b33822b52389952040f490e79973e94a.zip | |
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 <santosh.shilimkar@ti.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/omap4-common.c | 13 |
1 files changed, 13 insertions, 0 deletions
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); |