bfin_mac: offer a PTP Hardware Clock.
The BF518 has a PTP time unit that works in a similar way to other MAC
based clocks, like gianfar, ixp46x, and igb. This patch adds support for
using the blackfin as a PHC. Although the blackfin hardware does offer a
few ancillary features, this patch implements only the basic operations.
Compile tested only.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/adi/bfin_mac.h b/drivers/net/ethernet/adi/bfin_mac.h
index 57f042c..7a07ee0 100644
--- a/drivers/net/ethernet/adi/bfin_mac.h
+++ b/drivers/net/ethernet/adi/bfin_mac.h
@@ -11,6 +11,7 @@
#define _BFIN_MAC_H_
#include <linux/net_tstamp.h>
+#include <linux/ptp_clock_kernel.h>
#include <linux/timer.h>
#include <linux/etherdevice.h>
#include <linux/bfin_mac.h>
@@ -94,7 +95,12 @@
#if defined(CONFIG_BFIN_MAC_USE_HWSTAMP)
u32 addend;
unsigned int shift;
+ s32 max_ppb;
struct hwtstamp_config stamp_cfg;
+ struct ptp_clock_info caps;
+ struct ptp_clock *clock;
+ int phc_index;
+ spinlock_t phc_lock; /* protects time lo/hi registers */
#endif
};