diff options
author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2008-09-01 22:22:36 +0900 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2008-10-11 16:18:47 +0100 |
commit | f6d9831bb11eb465f95fb1736b866d405d9c7cbf (patch) | |
tree | fb3a2c4dc2d31f7b085583ebeb4994c4c2816130 /arch/mips/txx9/generic/setup_tx4927.c | |
parent | 9bed90c6a46f10c2d3052c0585057a5cb7392b92 (diff) |
MIPS: TXx9: stop_unused_modules
TXx9 SoCs have pin multiplex. Stop some controller modules which can
not be used due to pin configurations.
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_tx4927.c')
-rw-r--r-- | arch/mips/txx9/generic/setup_tx4927.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/mips/txx9/generic/setup_tx4927.c b/arch/mips/txx9/generic/setup_tx4927.c index c4248cbbd84a..914e93c62639 100644 --- a/arch/mips/txx9/generic/setup_tx4927.c +++ b/arch/mips/txx9/generic/setup_tx4927.c @@ -252,3 +252,34 @@ void __init tx4927_mtd_init(int ch) return; /* disabled */ txx9_physmap_flash_init(ch, start, size, &pdata); } + +static void __init tx4927_stop_unused_modules(void) +{ + __u64 pcfg, rst = 0, ckd = 0; + char buf[128]; + + buf[0] = '\0'; + local_irq_disable(); + pcfg = ____raw_readq(&tx4927_ccfgptr->pcfg); + if (!(pcfg & TX4927_PCFG_SEL2)) { + rst |= TX4927_CLKCTR_ACLRST; + ckd |= TX4927_CLKCTR_ACLCKD; + strcat(buf, " ACLC"); + } + if (rst | ckd) { + txx9_set64(&tx4927_ccfgptr->clkctr, rst); + txx9_set64(&tx4927_ccfgptr->clkctr, ckd); + } + local_irq_enable(); + if (buf[0]) + pr_info("%s: stop%s\n", txx9_pcode_str, buf); +} + +static int __init tx4927_late_init(void) +{ + if (txx9_pcode != 0x4927) + return -ENODEV; + tx4927_stop_unused_modules(); + return 0; +} +late_initcall(tx4927_late_init); |