diff options
Diffstat (limited to 'arch/arm/mach-tegra/tegra210/clock.c')
-rw-r--r-- | arch/arm/mach-tegra/tegra210/clock.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/tegra210/clock.c b/arch/arm/mach-tegra/tegra210/clock.c index 830a33f..146bb64 100644 --- a/arch/arm/mach-tegra/tegra210/clock.c +++ b/arch/arm/mach-tegra/tegra210/clock.c @@ -998,6 +998,17 @@ void clock_early_init(void) udelay(2); } +unsigned int clk_m_get_rate(unsigned parent_rate) +{ + struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 value, div; + + value = readl(&clkrst->crc_spare_reg0); + div = ((value >> 2) & 0x3) + 1; + + return parent_rate / div; +} + void arch_timer_init(void) { struct sysctr_ctlr *sysctr = (struct sysctr_ctlr *)NV_PA_TSC_BASE; |