summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorYangbo Lu <yangbo.lu@nxp.com>2020-04-20 05:46:45 +0300
committerDavid S. Miller <davem@davemloft.net>2020-04-22 01:38:33 +0300
commit2b49d128b3f8d8fff8972afcbc603802e5e40c6a (patch)
treed6ef5c1580d97a2f1900bfa109d296058670708f /include
parent59211053f099054e0f4c7796a494f4c9c2f79ded (diff)
downloadlinux-2b49d128b3f8d8fff8972afcbc603802e5e40c6a.tar.xz
net: mscc: ocelot: move ocelot ptp clock code out of ocelot.c
The Ocelot PTP clock driver had been embedded into ocelot.c driver. It had supported basic gettime64/settime64/adjtime/adjfine functions by now which were used by both Ocelot switch and Felix switch. This patch is to move current ptp clock code out of ocelot.c driver maintaining as a single ocelot_ptp.c. For futher new features implementation, the common code could be put in ocelot_ptp.c and the switch specific code should be in specific switch driver. The interrupt implementation in SoC is different between Ocelot and Felix. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/soc/mscc/ocelot.h1
-rw-r--r--include/soc/mscc/ocelot_ptp.h52
2 files changed, 52 insertions, 1 deletions
diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h
index 6d6a3947c8b7..6fd88ee622cf 100644
--- a/include/soc/mscc/ocelot.h
+++ b/include/soc/mscc/ocelot.h
@@ -620,7 +620,6 @@ int ocelot_vlan_add(struct ocelot *ocelot, int port, u16 vid, bool pvid,
int ocelot_vlan_del(struct ocelot *ocelot, int port, u16 vid);
int ocelot_hwstamp_get(struct ocelot *ocelot, int port, struct ifreq *ifr);
int ocelot_hwstamp_set(struct ocelot *ocelot, int port, struct ifreq *ifr);
-int ocelot_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts);
int ocelot_port_add_txtstamp_skb(struct ocelot_port *ocelot_port,
struct sk_buff *skb);
void ocelot_get_txtstamp(struct ocelot *ocelot);
diff --git a/include/soc/mscc/ocelot_ptp.h b/include/soc/mscc/ocelot_ptp.h
new file mode 100644
index 000000000000..f01b0ce4e4cb
--- /dev/null
+++ b/include/soc/mscc/ocelot_ptp.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Microsemi Ocelot Switch driver
+ *
+ * License: Dual MIT/GPL
+ * Copyright (c) 2017 Microsemi Corporation
+ * Copyright 2020 NXP
+ */
+
+#ifndef _MSCC_OCELOT_PTP_H_
+#define _MSCC_OCELOT_PTP_H_
+
+#include <linux/ptp_clock_kernel.h>
+#include <soc/mscc/ocelot.h>
+
+#define PTP_PIN_CFG_RSZ 0x20
+#define PTP_PIN_TOD_SEC_MSB_RSZ PTP_PIN_CFG_RSZ
+#define PTP_PIN_TOD_SEC_LSB_RSZ PTP_PIN_CFG_RSZ
+#define PTP_PIN_TOD_NSEC_RSZ PTP_PIN_CFG_RSZ
+
+#define PTP_PIN_CFG_DOM BIT(0)
+#define PTP_PIN_CFG_SYNC BIT(2)
+#define PTP_PIN_CFG_ACTION(x) ((x) << 3)
+#define PTP_PIN_CFG_ACTION_MASK PTP_PIN_CFG_ACTION(0x7)
+
+enum {
+ PTP_PIN_ACTION_IDLE = 0,
+ PTP_PIN_ACTION_LOAD,
+ PTP_PIN_ACTION_SAVE,
+ PTP_PIN_ACTION_CLOCK,
+ PTP_PIN_ACTION_DELTA,
+ PTP_PIN_ACTION_NOSYNC,
+ PTP_PIN_ACTION_SYNC,
+};
+
+#define PTP_CFG_MISC_PTP_EN BIT(2)
+
+#define PSEC_PER_SEC 1000000000000LL
+
+#define PTP_CFG_CLK_ADJ_CFG_ENA BIT(0)
+#define PTP_CFG_CLK_ADJ_CFG_DIR BIT(1)
+
+#define PTP_CFG_CLK_ADJ_FREQ_NS BIT(30)
+
+int ocelot_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts);
+int ocelot_ptp_settime64(struct ptp_clock_info *ptp,
+ const struct timespec64 *ts);
+int ocelot_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta);
+int ocelot_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm);
+int ocelot_init_timestamp(struct ocelot *ocelot, struct ptp_clock_info *info);
+int ocelot_deinit_timestamp(struct ocelot *ocelot);
+#endif