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| author | Rajmohan Mani <rajmohan.mani@intel.com> | 2020-03-05 15:33:46 +0100 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-06-22 18:58:32 +0200 |
| commit | 02d12855f51651cc9cf8e59e6cbb24a5d9e0a054 (patch) | |
| tree | 3ea8dc7a031ee2a34b04f714eccf7f039e67b1da /drivers/thunderbolt/tb_regs.h | |
| parent | thunderbolt: Retry USB4 block read operation (diff) | |
| download | linux-02d12855f51651cc9cf8e59e6cbb24a5d9e0a054.tar.xz linux-02d12855f51651cc9cf8e59e6cbb24a5d9e0a054.zip | |
thunderbolt: Implement USB4 port sideband operations for retimer access
USB4 spec specifies standard set of sideband operations that are send
over the low speed link to access either retimers on the link or the
link parter (the other router). The USB4 retimer spec extends these and
adds operations for retimer NVM upgrade.
This implements the retimer access and NVM upgrade USB4 port sideband
operations which we need for retimer support in the patch that follows.
Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Co-developed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h index 4fc561347b7c..2ac6af8e0c13 100644 --- a/drivers/thunderbolt/tb_regs.h +++ b/drivers/thunderbolt/tb_regs.h @@ -288,6 +288,16 @@ struct tb_regs_port_header { #define LANE_ADP_CS_1_CURRENT_WIDTH_SHIFT 20 /* USB4 port registers */ +#define PORT_CS_1 0x01 +#define PORT_CS_1_LENGTH_SHIFT 8 +#define PORT_CS_1_TARGET_MASK GENMASK(18, 16) +#define PORT_CS_1_TARGET_SHIFT 16 +#define PORT_CS_1_RETIMER_INDEX_SHIFT 20 +#define PORT_CS_1_WNR_WRITE BIT(24) +#define PORT_CS_1_NR BIT(25) +#define PORT_CS_1_RC BIT(26) +#define PORT_CS_1_PND BIT(31) +#define PORT_CS_2 0x02 #define PORT_CS_18 0x12 #define PORT_CS_18_BE BIT(8) #define PORT_CS_18_TCM BIT(9) |