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| author |   Mika Westerberg <mika.westerberg@linux.intel.com> | 2018-10-11 12:33:08 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2019-04-18 11:18:51 +0300 |
| commit | e879a709de0210802ba14243a168d632cb7ab527 (patch) | |
| tree | 755d8ff601ef92bc67802e9663a76ee156ba371a /drivers/thunderbolt/tb_regs.h | |
| parent | thunderbolt: Move LC specific functionality into a separate file (diff) | |
| download | linux-dev-e879a709de0210802ba14243a168d632cb7ab527.tar.xz linux-dev-e879a709de0210802ba14243a168d632cb7ab527.zip | |
thunderbolt: Configure lanes when switch is initialized
Thunderbolt 2 devices and beyond need to have additional bits set in
link controller specific registers. This includes two bits in LC_SX_CTRL
that tell the link controller which lane is connected and whether it is
upstream facing or not.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/tb_regs.h')
| -rw-r--r-- | drivers/thunderbolt/tb_regs.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h index 4895ae9f0b40..e0f867dad5cf 100644 --- a/drivers/thunderbolt/tb_regs.h +++ b/drivers/thunderbolt/tb_regs.h @@ -238,6 +238,17 @@ struct tb_regs_hop { } __packed; /* Common link controller registers */ +#define TB_LC_DESC 0x02 +#define TB_LC_DESC_SIZE_SHIFT 8 +#define TB_LC_DESC_SIZE_MASK GENMASK(15, 8) +#define TB_LC_DESC_PORT_SIZE_SHIFT 16 +#define TB_LC_DESC_PORT_SIZE_MASK GENMASK(27, 16) #define TB_LC_FUSE 0x03 +/* Link controller registers */ +#define TB_LC_SX_CTRL 0x96 +#define TB_LC_SX_CTRL_L1C BIT(16) +#define TB_LC_SX_CTRL_L2C BIT(20) +#define TB_LC_SX_CTRL_UPSTREAM BIT(30) + #endif |