diff options
| author |   Frank Li <Frank.Li@freescale.com> | 2012-10-30 18:25:31 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-11-01 12:28:44 -0400 |
| commit | 6605b730c061f67c44113391e5af5125d0672e99 (patch) | |
| tree | f590a2528231b7ca20a9ca32457eb0128e1e107c /drivers/net/ethernet/freescale/fec.h | |
| parent | ARM: imx6q: Set enet tx reference clk from anatop to support 1588 (diff) | |
| download | linux-dev-6605b730c061f67c44113391e5af5125d0672e99.tar.xz linux-dev-6605b730c061f67c44113391e5af5125d0672e99.zip | |
FEC: Add time stamping code and a PTP hardware clock
This patch adds a driver for the FEC(MX6) that offers time
stamping and a PTP haderware clock. Because FEC\ENET(MX6)
hardware frequency adjustment is complex, we have implemented
this in software by changing the multiplication factor of the
timecounter.
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/fec.h')
| -rw-r--r-- | drivers/net/ethernet/freescale/fec.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index e803812975df..c5a3bc1475c7 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -13,6 +13,12 @@ #define FEC_H /****************************************************************************/ +#ifdef CONFIG_FEC_PTP +#include <linux/clocksource.h> +#include <linux/net_tstamp.h> +#include <linux/ptp_clock_kernel.h> +#endif + #if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ defined(CONFIG_M520x) || defined(CONFIG_M532x) || \ defined(CONFIG_ARCH_MXC) || defined(CONFIG_SOC_IMX28) @@ -88,6 +94,13 @@ struct bufdesc { unsigned short cbd_datlen; /* Data length */ unsigned short cbd_sc; /* Control and status info */ unsigned long cbd_bufaddr; /* Buffer address */ +#ifdef CONFIG_FEC_PTP + unsigned long cbd_esc; + unsigned long cbd_prot; + unsigned long cbd_bdu; + unsigned long ts; + unsigned short res0[4]; +#endif }; #else struct bufdesc { @@ -190,6 +203,9 @@ struct fec_enet_private { struct clk *clk_ipg; struct clk *clk_ahb; +#ifdef CONFIG_FEC_PTP + struct clk *clk_ptp; +#endif /* The saved address of a sent-in-place packet/buffer, for skfree(). */ unsigned char *tx_bounce[TX_RING_SIZE]; @@ -227,7 +243,29 @@ struct fec_enet_private { int full_duplex; struct completion mdio_done; int irq[FEC_IRQ_NUM]; + +#ifdef CONFIG_FEC_PTP + struct ptp_clock *ptp_clock; + struct ptp_clock_info ptp_caps; + unsigned long last_overflow_check; + spinlock_t tmreg_lock; + struct cyclecounter cc; + struct timecounter tc; + int rx_hwtstamp_filter; + u32 base_incval; + u32 cycle_speed; + int hwts_rx_en; + int hwts_tx_en; + struct timer_list time_keep; +#endif + }; +#ifdef CONFIG_FEC_PTP +void fec_ptp_init(struct net_device *ndev, struct platform_device *pdev); +void fec_ptp_start_cyclecounter(struct net_device *ndev); +int fec_ptp_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd); +#endif + /****************************************************************************/ #endif /* FEC_H */ |