From: Jonathan Lemon <jonathan.lemon@gmail.com>
To: kuba@kernel.org, davem@davemloft.net, richardcochran@gmail.com
Cc: netdev@vger.kernel.org, kernel-team@fb.com
Subject: [PATCH net-next 14/18] ptp: ocp: Add second GNSS device
Date: Tue, 14 Sep 2021 19:16:32 -0700 [thread overview]
Message-ID: <20210915021636.153754-15-jonathan.lemon@gmail.com> (raw)
In-Reply-To: <20210915021636.153754-1-jonathan.lemon@gmail.com>
Upcoming boards may have a second GNSS receiver, getting information
from a different constellation than the first receiver, which provides
some measure of anti-spoofing.
Expose the sysfs attribute for this device, if detected.
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
---
drivers/ptp/ptp_ocp.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c
index 74b5561fbdae..d0e3096f53f6 100644
--- a/drivers/ptp/ptp_ocp.c
+++ b/drivers/ptp/ptp_ocp.c
@@ -232,6 +232,7 @@ struct ptp_ocp {
int id;
int n_irqs;
int gnss_port;
+ int gnss2_port;
int mac_port; /* miniature atomic clock */
int nmea_port;
u8 serial[6];
@@ -286,8 +287,8 @@ static int ptp_ocp_ts_enable(void *priv, bool enable);
* 0: N/C
* 1: TS0
* 2: TS1
- * 3: GPS
- * 4: GPS2 (n/c)
+ * 3: GNSS
+ * 4: GNSS2
* 5: MAC
* 6: TS2
* 7: I2C controller
@@ -384,6 +385,10 @@ static struct ocp_resource ocp_fb_resource[] = {
OCP_SERIAL_RESOURCE(gnss_port),
.offset = 0x00160000 + 0x1000, .irq_vec = 3,
},
+ {
+ OCP_SERIAL_RESOURCE(gnss2_port),
+ .offset = 0x00170000 + 0x1000, .irq_vec = 4,
+ },
{
OCP_SERIAL_RESOURCE(mac_port),
.offset = 0x00180000 + 0x1000, .irq_vec = 5,
@@ -2100,6 +2105,7 @@ ptp_ocp_device_init(struct ptp_ocp *bp, struct pci_dev *pdev)
bp->ptp_info = ptp_ocp_clock_info;
spin_lock_init(&bp->lock);
bp->gnss_port = -1;
+ bp->gnss2_port = -1;
bp->mac_port = -1;
bp->nmea_port = -1;
bp->pdev = pdev;
@@ -2163,6 +2169,10 @@ ptp_ocp_complete(struct ptp_ocp *bp)
sprintf(buf, "ttyS%d", bp->gnss_port);
ptp_ocp_link_child(bp, buf, "ttyGNSS");
}
+ if (bp->gnss2_port != -1) {
+ sprintf(buf, "ttyS%d", bp->gnss2_port);
+ ptp_ocp_link_child(bp, buf, "ttyGNSS2");
+ }
if (bp->mac_port != -1) {
sprintf(buf, "ttyS%d", bp->mac_port);
ptp_ocp_link_child(bp, buf, "ttyMAC");
@@ -2241,6 +2251,7 @@ ptp_ocp_info(struct ptp_ocp *bp)
ver >> 16);
}
ptp_ocp_serial_info(dev, "GNSS", bp->gnss_port, 115200);
+ ptp_ocp_serial_info(dev, "GNSS2", bp->gnss2_port, 115200);
ptp_ocp_serial_info(dev, "MAC", bp->mac_port, 57600);
if (bp->nmea_out && bp->nmea_port != -1) {
int baud = -1;
@@ -2281,6 +2292,8 @@ ptp_ocp_detach(struct ptp_ocp *bp)
ptp_ocp_unregister_ext(bp->pps);
if (bp->gnss_port != -1)
serial8250_unregister_port(bp->gnss_port);
+ if (bp->gnss2_port != -1)
+ serial8250_unregister_port(bp->gnss2_port);
if (bp->mac_port != -1)
serial8250_unregister_port(bp->mac_port);
if (bp->nmea_port != -1)
--
2.31.1
next prev parent reply other threads:[~2021-09-15 2:17 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-15 2:16 [PATCH net-next 00/18] timecard updates for v13 firmware Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 01/18] ptp: ocp: parameterize the i2c driver used Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 02/18] ptp: ocp: Parameterize the TOD information display Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 03/18] ptp: ocp: Skip I2C flash read when there is no controller Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 04/18] ptp: ocp: Skip resources with out of range irqs Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 05/18] ptp: ocp: Report error if resource registration fails Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 06/18] ptp: ocp: Add third timestamper Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 07/18] ptp: ocp: Add SMA selector and controls Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 08/18] ptp: ocp: Add IRIG-B and DCF blocks Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 09/18] ptp: ocp: Add IRIG-B output mode control Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 10/18] ptp: ocp: Add sysfs attribute utc_tai_offset Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 11/18] ptp: ocp: Separate the init and info logic Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 12/18] ptp: ocp: Add debugfs entry for timecard Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 13/18] ptp: ocp: Add NMEA output Jonathan Lemon
2021-09-15 2:16 ` Jonathan Lemon [this message]
2021-09-15 2:16 ` [PATCH net-next 15/18] ptp: ocp: Enable 4th timestamper / PPS generator Jonathan Lemon
2021-11-06 22:25 ` kernel test robot
2021-11-06 22:25 ` kernel test robot
2021-09-15 2:16 ` [PATCH net-next 16/18] ptp: ocp: Have FPGA fold in ns adjustment for adjtime Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 17/18] ptp: ocp: Add timestamp window adjustment Jonathan Lemon
2021-09-15 2:16 ` [PATCH net-next 18/18] docs: ABI: Add sysfs documentation for timecard Jonathan Lemon
2021-09-15 10:30 ` [PATCH net-next 00/18] timecard updates for v13 firmware patchwork-bot+netdevbpf
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