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| author | Steve French <sfrench@us.ibm.com> | 2008-02-15 22:06:08 +0100 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2008-02-15 22:06:08 +0100 |
| commit | 0a3abcf75bf391fec4e32356ab5ddb8f5d2e6b41 (patch) | |
| tree | b80b1d344ec24cad28b057ef803cebac9434be01 /arch/cris/arch-v32/mm/l2cache.c | |
| parent | [CIFS] factoring out common code in get_inode_info functions (diff) | |
| parent | Linux 2.6.25-rc2 (diff) | |
| download | linux-0a3abcf75bf391fec4e32356ab5ddb8f5d2e6b41.tar.xz linux-0a3abcf75bf391fec4e32356ab5ddb8f5d2e6b41.zip | |
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/cris/arch-v32/mm/l2cache.c')
| -rw-r--r-- | arch/cris/arch-v32/mm/l2cache.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/cris/arch-v32/mm/l2cache.c b/arch/cris/arch-v32/mm/l2cache.c new file mode 100644 index 000000000000..332ff10dcc6b --- /dev/null +++ b/arch/cris/arch-v32/mm/l2cache.c @@ -0,0 +1,29 @@ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <memmap.h> +#include <hwregs/reg_map.h> +#include <hwregs/reg_rdwr.h> +#include <hwregs/l2cache_defs.h> +#include <asm/io.h> + +#define L2CACHE_SIZE 64 + +int __init l2cache_init(void) +{ + reg_l2cache_rw_ctrl ctrl = {0}; + reg_l2cache_rw_cfg cfg = {.en = regk_l2cache_yes}; + + ctrl.csize = L2CACHE_SIZE; + ctrl.cbase = L2CACHE_SIZE / 4 + (L2CACHE_SIZE % 4 ? 1 : 0); + REG_WR(l2cache, regi_l2cache, rw_ctrl, ctrl); + + /* Flush the tag memory */ + memset((void *)(MEM_INTMEM_START | MEM_NON_CACHEABLE), 0, 2*1024); + + /* Enable the cache */ + REG_WR(l2cache, regi_l2cache, rw_cfg, cfg); + + return 0; +} + |