diff mbox series

[net-next,2/6] ptp: ocp: Add the mapping for the external PPS registers.

Message ID 20210805195248.35665-3-jonathan.lemon@gmail.com
State New
Headers show
Series ptp: ocp: assorted fixes. | expand

Commit Message

Jonathan Lemon Aug. 5, 2021, 7:52 p.m. UTC
There are two PPS blocks: one handles the external PPS signal output,
with the other handling the PPS signal input to the internal clock.
Add controls for the external PPS block.

Rename the fields so they match their function.

Add cable_delay to the register definitions.

Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
---
 drivers/ptp/ptp_ocp.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c
index 261713c6e9a7..8804e79477cd 100644
--- a/drivers/ptp/ptp_ocp.c
+++ b/drivers/ptp/ptp_ocp.c
@@ -113,6 +113,8 @@  struct ts_reg {
 struct pps_reg {
 	u32	ctrl;
 	u32	status;
+	u32	__pad0[6];
+	u32	cable_delay;
 };
 
 #define PPS_STATUS_FILTER_ERR	BIT(0)
@@ -149,7 +151,8 @@  struct ptp_ocp {
 	spinlock_t		lock;
 	struct ocp_reg __iomem	*reg;
 	struct tod_reg __iomem	*tod;
-	struct pps_reg __iomem	*pps_monitor;
+	struct pps_reg __iomem	*pps_to_ext;
+	struct pps_reg __iomem	*pps_to_clk;
 	struct ptp_ocp_ext_src	*pps;
 	struct ptp_ocp_ext_src	*ts0;
 	struct ptp_ocp_ext_src	*ts1;
@@ -251,7 +254,11 @@  static struct ocp_resource ocp_fb_resource[] = {
 		},
 	},
 	{
-		OCP_MEM_RESOURCE(pps_monitor),
+		OCP_MEM_RESOURCE(pps_to_ext),
+		.offset = 0x01030000, .size = 0x10000,
+	},
+	{
+		OCP_MEM_RESOURCE(pps_to_clk),
 		.offset = 0x01040000, .size = 0x10000,
 	},
 	{
@@ -537,10 +544,10 @@  ptp_ocp_watchdog(struct timer_list *t)
 	unsigned long flags;
 	u32 status;
 
-	status = ioread32(&bp->pps_monitor->status);
+	status = ioread32(&bp->pps_to_clk->status);
 
 	if (status & PPS_STATUS_SUPERV_ERR) {
-		iowrite32(status, &bp->pps_monitor->status);
+		iowrite32(status, &bp->pps_to_clk->status);
 		if (!bp->gps_lost) {
 			spin_lock_irqsave(&bp->lock, flags);
 			__ptp_ocp_clear_drift_locked(bp);