diff options
Diffstat (limited to 'drivers/net/ethernet/ti/am65-cpts.c')
| -rw-r--r-- | drivers/net/ethernet/ti/am65-cpts.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/am65-cpts.c b/drivers/net/ethernet/ti/am65-cpts.c index 51c94b2a77b1..c59a289e428c 100644 --- a/drivers/net/ethernet/ti/am65-cpts.c +++ b/drivers/net/ethernet/ti/am65-cpts.c @@ -450,6 +450,19 @@ static int am65_cpts_ptp_gettimex(struct ptp_clock_info *ptp, return 0; } +u64 am65_cpts_ns_gettime(struct am65_cpts *cpts) +{ + u64 ns; + + /* reuse ptp_clk_lock as it serialize ts push */ + mutex_lock(&cpts->ptp_clk_lock); + ns = am65_cpts_gettime(cpts, NULL); + mutex_unlock(&cpts->ptp_clk_lock); + + return ns; +} +EXPORT_SYMBOL_GPL(am65_cpts_ns_gettime); + static int am65_cpts_ptp_settime(struct ptp_clock_info *ptp, const struct timespec64 *ts) { @@ -494,6 +507,41 @@ static int am65_cpts_extts_enable(struct am65_cpts *cpts, u32 index, int on) return 0; } +int am65_cpts_estf_enable(struct am65_cpts *cpts, int idx, + struct am65_cpts_estf_cfg *cfg) +{ + u64 cycles; + u32 val; + + cycles = cfg->ns_period * cpts->refclk_freq; + cycles = DIV_ROUND_UP(cycles, NSEC_PER_SEC); + if (cycles > U32_MAX) + return -EINVAL; + + /* according to TRM should be zeroed */ + am65_cpts_write32(cpts, 0, estf[idx].length); + + val = upper_32_bits(cfg->ns_start); + am65_cpts_write32(cpts, val, estf[idx].comp_hi); + val = lower_32_bits(cfg->ns_start); + am65_cpts_write32(cpts, val, estf[idx].comp_lo); + val = lower_32_bits(cycles); + am65_cpts_write32(cpts, val, estf[idx].length); + + dev_dbg(cpts->dev, "%s: ESTF:%u enabled\n", __func__, idx); + + return 0; +} +EXPORT_SYMBOL_GPL(am65_cpts_estf_enable); + +void am65_cpts_estf_disable(struct am65_cpts *cpts, int idx) +{ + am65_cpts_write32(cpts, 0, estf[idx].length); + + dev_dbg(cpts->dev, "%s: ESTF:%u disabled\n", __func__, idx); +} +EXPORT_SYMBOL_GPL(am65_cpts_estf_disable); + static void am65_cpts_perout_enable_hw(struct am65_cpts *cpts, struct ptp_perout_request *req, int on) { |