From: Tao Zhang <tao.zhang@xxxxxxxxxxxxxxxx> The TPDA_SYNCR register defines the frequency at which TPDA generates ASYNC packets, enabling userspace tools to accurately parse each valid packet. Signed-off-by: Tao Zhang <tao.zhang@xxxxxxxxxxxxxxxx> Co-developed-by: Jie Gan <jie.gan@xxxxxxxxxxxxxxxx> Signed-off-by: Jie Gan <jie.gan@xxxxxxxxxxxxxxxx> --- drivers/hwtracing/coresight/coresight-tpda.c | 7 +++++++ drivers/hwtracing/coresight/coresight-tpda.h | 6 ++++++ 2 files changed, 13 insertions(+) diff --git a/drivers/hwtracing/coresight/coresight-tpda.c b/drivers/hwtracing/coresight/coresight-tpda.c index 647ab49a98d7..430f76c559f2 100644 --- a/drivers/hwtracing/coresight/coresight-tpda.c +++ b/drivers/hwtracing/coresight/coresight-tpda.c @@ -187,6 +187,13 @@ static void tpda_enable_pre_port(struct tpda_drvdata *drvdata) */ if (drvdata->trig_flag_ts) writel_relaxed(0x0, drvdata->base + TPDA_FPID_CR); + + /* Program the counter value for TPDA_SYNCR */ + val = readl_relaxed(drvdata->base + TPDA_SYNCR); + /* Clear the mode */ + val &= ~TPDA_SYNCR_MODE_CTRL; + val |= FIELD_PREP(TPDA_SYNCR_COUNTER_MASK, TPDA_SYNCR_MAX_COUNTER_VAL); + writel_relaxed(val, drvdata->base + TPDA_SYNCR); } static int tpda_enable_port(struct tpda_drvdata *drvdata, int port) diff --git a/drivers/hwtracing/coresight/coresight-tpda.h b/drivers/hwtracing/coresight/coresight-tpda.h index 0be625fb52fd..8e1b66115ad1 100644 --- a/drivers/hwtracing/coresight/coresight-tpda.h +++ b/drivers/hwtracing/coresight/coresight-tpda.h @@ -9,6 +9,7 @@ #define TPDA_CR (0x000) #define TPDA_Pn_CR(n) (0x004 + (n * 4)) #define TPDA_FPID_CR (0x084) +#define TPDA_SYNCR (0x08C) /* Cross trigger FREQ packets timestamp bit */ #define TPDA_CR_FREQTS BIT(2) @@ -27,6 +28,11 @@ #define TPDA_Pn_CR_CMBSIZE GENMASK(7, 6) /* Aggregator port DSB data set element size bit */ #define TPDA_Pn_CR_DSBSIZE BIT(8) +/* TPDA_SYNCR mode control bit */ +#define TPDA_SYNCR_MODE_CTRL BIT(12) +/* TPDA_SYNCR counter mask */ +#define TPDA_SYNCR_COUNTER_MASK GENMASK(11, 0) +#define TPDA_SYNCR_MAX_COUNTER_VAL (0xFFF) #define TPDA_MAX_INPORTS 32 -- 2.34.1
