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>
diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c
index b17233cb..c3e9dff 100644
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -166,6 +166,18 @@
}
}
+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;