diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2015-08-08 12:36:44 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-08-14 08:37:38 +0200 |
| commit | 49043cbad1db2e97daffe54d5ee32103c11dd4fd (patch) | |
| tree | 8bcf19d4634c6ab93278d00323548486e02254c7 /arch/arm/cpu/armv7/sunxi/clock_sun4i.c | |
| parent | fbf10ae98657f1a888b670078f4eb18f9172c834 (diff) | |
sunxi: clock: Add clock_get_pll3() helper function
Add a helper function to get the pll3 clock rate.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'arch/arm/cpu/armv7/sunxi/clock_sun4i.c')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/clock_sun4i.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/clock_sun4i.c b/arch/arm/cpu/armv7/sunxi/clock_sun4i.c index c3e04af36d..7c8eff959b 100644 --- a/arch/arm/cpu/armv7/sunxi/clock_sun4i.c +++ b/arch/arm/cpu/armv7/sunxi/clock_sun4i.c @@ -198,6 +198,15 @@ void clock_set_pll3(unsigned int clk) CCM_PLL3_CTRL_M(clk / 3000000), &ccm->pll3_cfg); } +unsigned int clock_get_pll3(void) +{ + struct sunxi_ccm_reg *const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + uint32_t rval = readl(&ccm->pll3_cfg); + int m = ((rval & CCM_PLL3_CTRL_M_MASK) >> CCM_PLL3_CTRL_M_SHIFT); + return 3000000 * m; +} + unsigned int clock_get_pll5p(void) { struct sunxi_ccm_reg *const ccm = |