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net: mscc: ocelot: move ocelot ptp clock code out of ocelot.c

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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>
This commit is contained in:
Yangbo Lu
2020-04-20 10:46:45 +08:00
committed by David S. Miller
parent 59211053f0
commit 2b49d128b3
8 changed files with 266 additions and 210 deletions
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25
drivers/net/dsa/ocelot/felix.c
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@@ -7,6 +7,7 @@
#include <soc/mscc/ocelot_sys.h>
#include <soc/mscc/ocelot_dev.h>
#include <soc/mscc/ocelot_ana.h>
#include <soc/mscc/ocelot_ptp.h>
#include <soc/mscc/ocelot.h>
#include <linux/packing.h>
#include <linux/module.h>
@@ -494,6 +495,21 @@ static int felix_init_structs(struct felix *felix, int num_phys_ports)
return 0;
}
static struct ptp_clock_info ocelot_ptp_clock_info = {
.owner = THIS_MODULE,
.name = "felix ptp",
.max_adj = 0x7fffffff,
.n_alarm = 0,
.n_ext_ts = 0,
.n_per_out = 0,
.n_pins = 0,
.pps = 0,
.gettime64 = ocelot_ptp_gettime64,
.settime64 = ocelot_ptp_settime64,
.adjtime = ocelot_ptp_adjtime,
.adjfine = ocelot_ptp_adjfine,
};
/* Hardware initialization done here so that we can allocate structures with
* devm without fear of dsa_register_switch returning -EPROBE_DEFER and causing
* us to allocate structures twice (leak memory) and map PCI memory twice
@@ -510,6 +526,14 @@ static int felix_setup(struct dsa_switch *ds)
return err;
ocelot_init(ocelot);
if (ocelot->ptp) {
err = ocelot_init_timestamp(ocelot, &ocelot_ptp_clock_info);
if (err) {
dev_err(ocelot->dev,
"Timestamp initialization failed\n");
ocelot->ptp = 0;
}
}
for (port = 0; port < ds->num_ports; port++) {
ocelot_init_port(ocelot, port);
@@ -548,6 +572,7 @@ static void felix_teardown(struct dsa_switch *ds)
if (felix->info->mdio_bus_free)
felix->info->mdio_bus_free(ocelot);
ocelot_deinit_timestamp(ocelot);
/* stop workqueue thread */
ocelot_deinit(ocelot);
}