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| author | Ronen Shitrit <rshitrit@marvell.com> | 2008-09-23 15:28:10 +0300 |
|---|---|---|
| committer | Nicolas Pitre <nico@cam.org> | 2008-09-25 16:29:21 -0400 |
| commit | 4360bb41920ffacd4a935fa692768129ee5bef4e (patch) | |
| tree | 8d5bbe15ad4c39d089ac42ab0330d8c515584f65 /arch/arm/mach-kirkwood | |
| parent | 3d014b01e54ce08d15a598f0bfb3ce597f14ca03 (diff) | |
| download | op-kernel-dev-4360bb41920ffacd4a935fa692768129ee5bef4e.zip op-kernel-dev-4360bb41920ffacd4a935fa692768129ee5bef4e.tar.gz | |
[ARM] Kirkwood: add support for L2 cache WB/WT selection
Feroceon L2 cache can work in eighther write through or write back mode
on Kirkwood. Add the option to configure this mode according to Kconfig.
Signed-off-by: Ronen Shitrit <rshitrit@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Diffstat (limited to 'arch/arm/mach-kirkwood')
| -rw-r--r-- | arch/arm/mach-kirkwood/common.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index c8516e3..85cad05 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -588,9 +588,15 @@ static char * __init kirkwood_id(void) } } -static int __init is_l2_writethrough(void) +static void __init kirkwood_l2_init(void) { - return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH); +#ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH + writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG); + feroceon_l2_init(1); +#else + writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG); + feroceon_l2_init(0); +#endif } void __init kirkwood_init(void) @@ -605,6 +611,6 @@ void __init kirkwood_init(void) kirkwood_setup_cpu_mbus(); #ifdef CONFIG_CACHE_FEROCEON_L2 - feroceon_l2_init(is_l2_writethrough()); + kirkwood_l2_init(); #endif } |
