diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2011-07-17 01:06:05 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-07-19 17:03:11 -0400 |
| commit | 6f53912fc317ab130bd910c5c30420a21ea38115 (patch) | |
| tree | 780ce23098e2cc10eb43eede985f1f64ae6bcda7 /drivers/bcma/core.c | |
| parent | 7424dd0d03502b9844b96bf6efd0716b79c36607 (diff) | |
bcma: allow enabling PLL
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/bcma/core.c')
| -rw-r--r-- | drivers/bcma/core.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/bcma/core.c b/drivers/bcma/core.c index 0686b1b5f27..2d8506dbca7 100644 --- a/drivers/bcma/core.c +++ b/drivers/bcma/core.c @@ -81,3 +81,28 @@ void bcma_core_set_clockmode(struct bcma_device *core, } } EXPORT_SYMBOL_GPL(bcma_core_set_clockmode); + +void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status, bool on) +{ + u16 i; + + WARN_ON(req & ~BCMA_CLKCTLST_EXTRESREQ); + WARN_ON(status & ~BCMA_CLKCTLST_EXTRESST); + + if (on) { + bcma_set32(core, BCMA_CLKCTLST, req); + for (i = 0; i < 10000; i++) { + if ((bcma_read32(core, BCMA_CLKCTLST) & status) == + status) { + i = 0; + break; + } + udelay(10); + } + if (i) + pr_err("PLL enable timeout\n"); + } else { + pr_warn("Disabling PLL not supported yet!\n"); + } +} +EXPORT_SYMBOL_GPL(bcma_core_pll_ctl); |