This patch adds support for the PTP clock found on the DP83640.
The basic clock operations and one external time stamp have
been implemented.
Signed-off-by: Richard Cochran richard.coch...@omicron.at
---
drivers/net/phy/Makefile |1 +
drivers/net/phy/dp83640.c | 1015 +
drivers/net/phy/dp83640_reg.h | 267 +++
drivers/ptp/Kconfig | 19 +
4 files changed, 1302 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/phy/dp83640.c
create mode 100644 drivers/net/phy/dp83640_reg.h
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 13bebab..2333215 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_FIXED_PHY) += fixed.o
obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o
obj-$(CONFIG_MDIO_GPIO)+= mdio-gpio.o
obj-$(CONFIG_NATIONAL_PHY) += national.o
+obj-$(CONFIG_DP83640_PHY) += dp83640.o
obj-$(CONFIG_STE10XP) += ste10Xp.o
obj-$(CONFIG_MICREL_PHY) += micrel.o
obj-$(CONFIG_MDIO_OCTEON) += mdio-octeon.o
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
new file mode 100644
index 000..61d682d
--- /dev/null
+++ b/drivers/net/phy/dp83640.c
@@ -0,0 +1,1015 @@
+/*
+ * Driver for the National Semiconductor DP83640 PHYTER
+ *
+ * Copyright (C) 2010 OMICRON electronics GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include linux/ethtool.h
+#include linux/kernel.h
+#include linux/list.h
+#include linux/mii.h
+#include linux/module.h
+#include linux/net_tstamp.h
+#include linux/netdevice.h
+#include linux/phy.h
+#include linux/ptp_classify.h
+#include linux/ptp_clock_kernel.h
+
+#include dp83640_reg.h
+
+#define DP83640_PHY_ID 0x20005ce1
+#define PAGESEL0x13
+#define LAYER4 0x02
+#define LAYER2 0x01
+#define MAX_RXTS 4
+#define MAX_TXTS 4
+#define N_EXT_TS 1
+#define PSF_PTPVER 2
+#define PSF_EVNT 0x4000
+#define PSF_RX 0x2000
+#define PSF_TX 0x1000
+#define EXT_EVENT 1
+#define EXT_GPIO 1
+#define CAL_EVENT 2
+#define CAL_GPIO 9
+#define CAL_TRIGGER2
+
+/* phyter seems to miss the mark by 16 ns */
+#define ADJTIME_FIX16
+
+#if defined(__BIG_ENDIAN)
+#define ENDIAN_FLAG0
+#elif defined(__LITTLE_ENDIAN)
+#define ENDIAN_FLAGPSF_ENDIAN
+#endif
+
+#define SKB_PTP_TYPE(__skb) (*(unsigned int *)((__skb)-cb))
+
+struct phy_rxts {
+ u16 ns_lo; /* ns[15:0] */
+ u16 ns_hi; /* overflow[1:0], ns[29:16] */
+ u16 sec_lo; /* sec[15:0] */
+ u16 sec_hi; /* sec[31:16] */
+ u16 seqid; /* sequenceId[15:0] */
+ u16 msgtype; /* messageType[3:0], hash[11:0] */
+};
+
+struct phy_txts {
+ u16 ns_lo; /* ns[15:0] */
+ u16 ns_hi; /* overflow[1:0], ns[29:16] */
+ u16 sec_lo; /* sec[15:0] */
+ u16 sec_hi; /* sec[31:16] */
+};
+
+struct rxts {
+ struct list_head list;
+ unsigned long tmo;
+ u64 ns;
+ u16 seqid;
+ u8 msgtype;
+ u16 hash;
+};
+
+struct dp83640_clock;
+
+struct dp83640_private {
+ struct list_head list;
+ struct dp83640_clock *clock;
+ struct phy_device *phydev;
+ struct work_struct ts_work;
+ int hwts_tx_en;
+ int hwts_rx_en;
+ int layer;
+ int version;
+ /* remember state of cfg0 during calibration */
+ int cfg0;
+ /* remember the last event time stamp */
+ struct phy_txts edata;
+ /* list of rx timestamps */
+ struct list_head rxts;
+ struct list_head rxpool;
+ struct rxts rx_pool_data[MAX_RXTS];
+ /* protects above three fields from concurrent access */
+ spinlock_t rx_lock;
+ /* queues of incoming and outgoing packets */
+ struct sk_buff_head rx_queue;
+ struct sk_buff_head tx_queue;
+};
+
+struct dp83640_clock {
+ /* protects extended registers from concurrent access */
+ struct mutex extreg_lock;
+ /* remembers which page was last selected */
+ int page;
+ /* our advertised capabilities */
+ struct ptp_clock_info caps;
+ /* the one phyter from which we shall read */
+ struct dp83640_private *chosen;
+ /* list of the other
