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authorHauke Mehrtens <hauke@hauke-m.de>2011-07-23 03:20:11 +0400
committerJohn W. Linville <linville@tuxdriver.com>2011-08-08 22:29:29 +0400
commit908debc8da0d5a91418f71c6a462f62bd2ac69ef (patch)
tree886072e213b3a67650a53574be916ec105d15b61 /drivers/bcma/driver_mips.c
parente3afe0e5be7576ac1282ea9fbbc9b352bb379227 (diff)
downloadlinux-908debc8da0d5a91418f71c6a462f62bd2ac69ef.tar.xz
bcma: get CPU clock
Add method to return the clock of the CPU. This is needed by the arch code to calculate the mips_hpt_frequency. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/bcma/driver_mips.c')
-rw-r--r--drivers/bcma/driver_mips.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c
index b17233cb75c6..c3e9dff4224e 100644
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -166,6 +166,18 @@ static void bcma_core_mips_dump_irq(struct bcma_bus *bus)
}
}
+u32 bcma_cpu_clock(struct bcma_drv_mips *mcore)
+{
+ struct bcma_bus *bus = mcore->core->bus;
+
+ if (bus->drv_cc.capabilities & BCMA_CC_CAP_PMU)
+ return bcma_pmu_get_clockcpu(&bus->drv_cc);
+
+ pr_err("No PMU available, need this to get the cpu clock\n");
+ return 0;
+}
+EXPORT_SYMBOL(bcma_cpu_clock);
+
static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore)
{
struct bcma_bus *bus = mcore->core->bus;