diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2011-09-06 07:45:46 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-20 08:21:01 -0700 |
| commit | 0e69b54fa8b48e3cdc1a78f77beab3af763a33a1 (patch) | |
| tree | 4e8b193cd3994359c108e96d208a3de42a14e834 /arch/arm/include | |
| parent | 3fa539e24c5d7077791a1d6bd8bb28bf86bef932 (diff) | |
| download | kernel_samsung_smdk4412-0e69b54fa8b48e3cdc1a78f77beab3af763a33a1.zip kernel_samsung_smdk4412-0e69b54fa8b48e3cdc1a78f77beab3af763a33a1.tar.gz kernel_samsung_smdk4412-0e69b54fa8b48e3cdc1a78f77beab3af763a33a1.tar.bz2 | |
ARM: 7080/1: l2x0: make sure I&D are not locked down on init
commit bac7e6ecf60933b68af910eb4c83a775a8b20b19 upstream.
Fighting unfixed U-Boots and other beasts that may the cache in
a locked-down state when starting the kernel, we make sure to
disable all cache lock-down when initializing the l2x0 so we
are in a known state.
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reported-by: Jan Rinze <janrinze@gmail.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Rabin Vincent <rabin.vincent@stericsson.com>
Cc: Adrian Bunk <adrian.bunk@movial.com>
Cc: Rob Herring <robherring2@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Tested-by: Robert Marklund <robert.marklund@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/hardware/cache-l2x0.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h index bfa706f..99a6ed7 100644 --- a/arch/arm/include/asm/hardware/cache-l2x0.h +++ b/arch/arm/include/asm/hardware/cache-l2x0.h @@ -45,8 +45,13 @@ #define L2X0_CLEAN_INV_LINE_PA 0x7F0 #define L2X0_CLEAN_INV_LINE_IDX 0x7F8 #define L2X0_CLEAN_INV_WAY 0x7FC -#define L2X0_LOCKDOWN_WAY_D 0x900 -#define L2X0_LOCKDOWN_WAY_I 0x904 +/* + * The lockdown registers repeat 8 times for L310, the L210 has only one + * D and one I lockdown register at 0x0900 and 0x0904. + */ +#define L2X0_LOCKDOWN_WAY_D_BASE 0x900 +#define L2X0_LOCKDOWN_WAY_I_BASE 0x904 +#define L2X0_LOCKDOWN_STRIDE 0x08 #define L2X0_TEST_OPERATION 0xF00 #define L2X0_LINE_DATA 0xF10 #define L2X0_LINE_TAG 0xF30 |