diff options
| author |   Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2008-08-19 22:55:09 +0900 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2008-10-11 16:18:42 +0100 |
| commit | d10e025f0e4ba4b96d7b5786d232ac5b0b232b11 (patch) | |
| tree | a417a55071b4b7edc22b7c5bb1a2352e7b5986d9 /arch/mips/txx9/generic/setup_tx3927.c | |
| parent | MIPS: TXx9: Early command-line preprocessing (diff) | |
| download | linux-dev-d10e025f0e4ba4b96d7b5786d232ac5b0b232b11.tar.xz linux-dev-d10e025f0e4ba4b96d7b5786d232ac5b0b232b11.zip | |
MIPS: TXx9: Cache fixup
TX39/TX49 can enable/disable I/D cache at runtime. Add kernel options
to control them. This is useful to debug some cache-related issues,
such as aliasing or I/D coherency. Also enable CWF bit for TX49 SoCs.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/txx9/generic/setup_tx3927.c')
| -rw-r--r-- | arch/mips/txx9/generic/setup_tx3927.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/arch/mips/txx9/generic/setup_tx3927.c b/arch/mips/txx9/generic/setup_tx3927.c index 7bd963d37fc3..4bc2f859379d 100644 --- a/arch/mips/txx9/generic/setup_tx3927.c +++ b/arch/mips/txx9/generic/setup_tx3927.c @@ -99,16 +99,14 @@ void __init tx3927_setup(void) txx9_gpio_init(TX3927_PIO_REG, 0, 16); conf = read_c0_conf(); - if (!(conf & TX39_CONF_ICE)) - printk(KERN_INFO "TX3927 I-Cache disabled.\n"); - if (!(conf & TX39_CONF_DCE)) - printk(KERN_INFO "TX3927 D-Cache disabled.\n"); - else if (!(conf & TX39_CONF_WBON)) - printk(KERN_INFO "TX3927 D-Cache WriteThrough.\n"); - else if (!(conf & TX39_CONF_CWFON)) - printk(KERN_INFO "TX3927 D-Cache WriteBack.\n"); - else - printk(KERN_INFO "TX3927 D-Cache WriteBack (CWF) .\n"); + if (conf & TX39_CONF_DCE) { + if (!(conf & TX39_CONF_WBON)) + pr_info("TX3927 D-Cache WriteThrough.\n"); + else if (!(conf & TX39_CONF_CWFON)) + pr_info("TX3927 D-Cache WriteBack.\n"); + else + pr_info("TX3927 D-Cache WriteBack (CWF) .\n"); + } } void __init tx3927_time_init(unsigned int evt_tmrnr, unsigned int src_tmrnr) |