ptp: ocp: Add the mapping for the external PPS registers.

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>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c
index 261713c..8804e79 100644 (file)
--- 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);