diff options
| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2015-06-11 00:02:30 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-06-11 09:24:12 +0200 |
| commit | a0d2f20650e81407d8e51ad2cbdc492861c74e9c (patch) | |
| tree | 56c9c1c4f4fcf26d246f3a0a8649729e496edf22 /drivers/net/ethernet/renesas/ravb.h | |
| parent | Renesas Ethernet AVB driver proper (diff) | |
| download | linux-a0d2f20650e81407d8e51ad2cbdc492861c74e9c.tar.xz linux-a0d2f20650e81407d8e51ad2cbdc492861c74e9c.zip | |
Renesas Ethernet AVB PTP clock driver
Ethernet AVB device includes the gPTP timer, so we can implement a PTP clock
driver. We're doing that in a separate file, with the main Ethernet driver
calling the PTP driver's [de]initialization and interrupt handler functions.
Unfortunately, the clock seems tightly coupled with the AVB-DMAC, so when that
one leaves the operation mode, we have to unregister the PTP clock... :-(
Based on the original patches by Masaru Nagai.
Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/renesas/ravb.h')
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index f2656ebba084..8aa50ac4e2d6 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -20,6 +20,8 @@ #include <linux/mdio-bitbang.h> #include <linux/netdevice.h> #include <linux/phy.h> +#include <linux/platform_device.h> +#include <linux/ptp_clock_kernel.h> #define BE_TX_RING_SIZE 64 /* TX ring size for Best Effort */ #define BE_RX_RING_SIZE 1024 /* RX ring size for Best Effort */ @@ -744,6 +746,23 @@ struct ravb_tstamp_skb { u16 tag; }; +struct ravb_ptp_perout { + u32 target; + u32 period; +}; + +#define N_EXT_TS 1 +#define N_PER_OUT 1 + +struct ravb_ptp { + struct ptp_clock *clock; + struct ptp_clock_info info; + u32 default_addend; + u32 current_addend; + int extts[N_EXT_TS]; + struct ravb_ptp_perout perout[N_PER_OUT]; +}; + struct ravb_private { struct net_device *ndev; struct platform_device *pdev; @@ -768,6 +787,7 @@ struct ravb_private { u32 tstamp_rx_ctrl; struct list_head ts_skb_list; u32 ts_skb_tag; + struct ravb_ptp ptp; spinlock_t lock; /* Register access lock */ u32 cur_rx[NUM_RX_QUEUE]; /* Consumer ring indices */ u32 dirty_rx[NUM_RX_QUEUE]; /* Producer ring indices */ @@ -803,4 +823,10 @@ static inline void ravb_write(struct net_device *ndev, u32 data, iowrite32(data, priv->addr + reg); } +int ravb_wait(struct net_device *ndev, enum ravb_reg reg, u32 mask, u32 value); + +irqreturn_t ravb_ptp_interrupt(struct net_device *ndev); +void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev); +void ravb_ptp_stop(struct net_device *ndev); + #endif /* #ifndef __RAVB_H__ */ |