diff options
Diffstat (limited to 'arch/arm/include/asm/arch-tegra2/clock.h')
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/clock.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-tegra2/clock.h b/arch/arm/include/asm/arch-tegra2/clock.h index 6b12c76e8d..1d3ae38644 100644 --- a/arch/arm/include/asm/arch-tegra2/clock.h +++ b/arch/arm/include/asm/arch-tegra2/clock.h @@ -210,6 +210,21 @@ enum clock_osc_freq clock_get_osc_freq(void); unsigned long clock_start_pll(enum clock_id id, u32 divm, u32 divn, u32 divp, u32 cpcon, u32 lfcon); +/** + * Read low-level parameters of a PLL. + * + * @param id clock id to read (note: USB is not supported) + * @param divm returns input divider + * @param divn returns feedback divider + * @param divp returns post divider 2^n + * @param cpcon returns charge pump setup control + * @param lfcon returns loop filter setup control + * + * @returns 0 if ok, -1 on error (invalid clock id) + */ +int clock_ll_read_pll(enum clock_id clkid, u32 *divm, u32 *divn, + u32 *divp, u32 *cpcon, u32 *lfcon); + /* * Enable a clock * @@ -368,6 +383,13 @@ void clock_ll_start_uart(enum periph_id periph_id); */ enum periph_id clock_decode_periph_id(const void *blob, int node); +/** + * Checks if the oscillator bypass is enabled (XOBP bit) + * + * @return 1 if bypass is enabled, 0 if not + */ +int clock_get_osc_bypass(void); + /* * Checks that clocks are valid and prints a warning if not * |