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path: root/drivers/hwtracing/coresight/coresight-tmc.c
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Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc.c')
-rw-r--r--drivers/hwtracing/coresight/coresight-tmc.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c
index 3f646e29a99b..66fa7736d12f 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.c
+++ b/drivers/hwtracing/coresight/coresight-tmc.c
@@ -180,6 +180,9 @@ static void tmc_etb_enable_hw(struct tmc_drvdata *drvdata)
CS_UNLOCK(drvdata->base);
+ /* Wait for TMCSReady bit to be set */
+ tmc_wait_for_tmcready(drvdata);
+
writel_relaxed(TMC_MODE_CIRCULAR_BUFFER, drvdata->base + TMC_MODE);
writel_relaxed(TMC_FFCR_EN_FMT | TMC_FFCR_EN_TI |
TMC_FFCR_FON_FLIN | TMC_FFCR_FON_TRIG_EVT |
@@ -201,6 +204,9 @@ static void tmc_etr_enable_hw(struct tmc_drvdata *drvdata)
CS_UNLOCK(drvdata->base);
+ /* Wait for TMCSReady bit to be set */
+ tmc_wait_for_tmcready(drvdata);
+
writel_relaxed(drvdata->size / 4, drvdata->base + TMC_RSZ);
writel_relaxed(TMC_MODE_CIRCULAR_BUFFER, drvdata->base + TMC_MODE);
@@ -230,6 +236,9 @@ static void tmc_etf_enable_hw(struct tmc_drvdata *drvdata)
{
CS_UNLOCK(drvdata->base);
+ /* Wait for TMCSReady bit to be set */
+ tmc_wait_for_tmcready(drvdata);
+
writel_relaxed(TMC_MODE_HARDWARE_FIFO, drvdata->base + TMC_MODE);
writel_relaxed(TMC_FFCR_EN_FMT | TMC_FFCR_EN_TI,
drvdata->base + TMC_FFCR);
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