diff options
| author | Nithin Sujir <nsujir@broadcom.com> | 2013-07-29 22:58:38 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-30 08:38:52 +0200 |
| commit | 92e6457d4cf68ef69bc4f98330c93e198df06a43 (patch) | |
| tree | a60ad7edf04f1881225b8e4eb04fd3f394221c24 /drivers/net/ethernet/broadcom/tg3.h | |
| parent | tg3: Implement the shutdown handler (diff) | |
| download | linux-92e6457d4cf68ef69bc4f98330c93e198df06a43.tar.xz linux-92e6457d4cf68ef69bc4f98330c93e198df06a43.zip | |
tg3: Enable support for timesync gpio output
The PTP_CAPABLE tg3 devices have a gpio output that is toggled when the
free running counter matches a watchdog value. This patch adds support
to set the watchdog and enable this feature.
Since the output is controlled via bits in the EAV_REF_CLCK_CTL
register, we have to read-modify-write it when we stop/resume.
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/tg3.h')
| -rw-r--r-- | drivers/net/ethernet/broadcom/tg3.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h index cd63d1189aae..2e0f3d34ea5d 100644 --- a/drivers/net/ethernet/broadcom/tg3.h +++ b/drivers/net/ethernet/broadcom/tg3.h @@ -1818,12 +1818,21 @@ #define TG3_EAV_REF_CLCK_CTL 0x00006908 #define TG3_EAV_REF_CLCK_CTL_STOP 0x00000002 #define TG3_EAV_REF_CLCK_CTL_RESUME 0x00000004 +#define TG3_EAV_CTL_TSYNC_GPIO_MASK (0x3 << 16) +#define TG3_EAV_CTL_TSYNC_WDOG0 (1 << 17) + +#define TG3_EAV_WATCHDOG0_LSB 0x00006918 +#define TG3_EAV_WATCHDOG0_MSB 0x0000691c +#define TG3_EAV_WATCHDOG0_EN (1 << 31) +#define TG3_EAV_WATCHDOG_MSB_MASK 0x7fffffff + #define TG3_EAV_REF_CLK_CORRECT_CTL 0x00006928 #define TG3_EAV_REF_CLK_CORRECT_EN (1 << 31) #define TG3_EAV_REF_CLK_CORRECT_NEG (1 << 30) #define TG3_EAV_REF_CLK_CORRECT_MASK 0xffffff -/* 0x690c --> 0x7000 unused */ + +/* 0x692c --> 0x7000 unused */ /* NVRAM Control registers */ #define NVRAM_CMD 0x00007000 |