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Diffstat (limited to 'drivers/thunderbolt/sb_regs.h')
-rw-r--r--drivers/thunderbolt/sb_regs.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/drivers/thunderbolt/sb_regs.h b/drivers/thunderbolt/sb_regs.h
new file mode 100644
index 0000000000..f37a4320f1
--- /dev/null
+++ b/drivers/thunderbolt/sb_regs.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * USB4 port sideband registers found on routers and retimers
+ *
+ * Copyright (C) 2020, Intel Corporation
+ * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
+ * Rajmohan Mani <rajmohan.mani@intel.com>
+ */
+
+#ifndef _SB_REGS
+#define _SB_REGS
+
+#define USB4_SB_VENDOR_ID 0x00
+#define USB4_SB_PRODUCT_ID 0x01
+#define USB4_SB_OPCODE 0x08
+
+enum usb4_sb_opcode {
+ USB4_SB_OPCODE_ERR = 0x20525245, /* "ERR " */
+ USB4_SB_OPCODE_ONS = 0x444d4321, /* "!CMD" */
+ USB4_SB_OPCODE_ROUTER_OFFLINE = 0x4e45534c, /* "LSEN" */
+ USB4_SB_OPCODE_ENUMERATE_RETIMERS = 0x4d554e45, /* "ENUM" */
+ USB4_SB_OPCODE_SET_INBOUND_SBTX = 0x5055534c, /* "LSUP" */
+ USB4_SB_OPCODE_UNSET_INBOUND_SBTX = 0x50555355, /* "USUP" */
+ USB4_SB_OPCODE_QUERY_LAST_RETIMER = 0x5453414c, /* "LAST" */
+ USB4_SB_OPCODE_GET_NVM_SECTOR_SIZE = 0x53534e47, /* "GNSS" */
+ USB4_SB_OPCODE_NVM_SET_OFFSET = 0x53504f42, /* "BOPS" */
+ USB4_SB_OPCODE_NVM_BLOCK_WRITE = 0x574b4c42, /* "BLKW" */
+ USB4_SB_OPCODE_NVM_AUTH_WRITE = 0x48545541, /* "AUTH" */
+ USB4_SB_OPCODE_NVM_READ = 0x52524641, /* "AFRR" */
+ USB4_SB_OPCODE_READ_LANE_MARGINING_CAP = 0x50434452, /* "RDCP" */
+ USB4_SB_OPCODE_RUN_HW_LANE_MARGINING = 0x474d4852, /* "RHMG" */
+ USB4_SB_OPCODE_RUN_SW_LANE_MARGINING = 0x474d5352, /* "RSMG" */
+ USB4_SB_OPCODE_READ_SW_MARGIN_ERR = 0x57534452, /* "RDSW" */
+};
+
+#define USB4_SB_METADATA 0x09
+#define USB4_SB_METADATA_NVM_AUTH_WRITE_MASK GENMASK(5, 0)
+#define USB4_SB_DATA 0x12
+
+/* USB4_SB_OPCODE_READ_LANE_MARGINING_CAP */
+#define USB4_MARGIN_CAP_0_MODES_HW BIT(0)
+#define USB4_MARGIN_CAP_0_MODES_SW BIT(1)
+#define USB4_MARGIN_CAP_0_2_LANES BIT(2)
+#define USB4_MARGIN_CAP_0_VOLTAGE_INDP_MASK GENMASK(4, 3)
+#define USB4_MARGIN_CAP_0_VOLTAGE_INDP_SHIFT 3
+#define USB4_MARGIN_CAP_0_VOLTAGE_MIN 0x0
+#define USB4_MARGIN_CAP_0_VOLTAGE_HL 0x1
+#define USB4_MARGIN_CAP_0_VOLTAGE_BOTH 0x2
+#define USB4_MARGIN_CAP_0_TIME BIT(5)
+#define USB4_MARGIN_CAP_0_VOLTAGE_STEPS_MASK GENMASK(12, 6)
+#define USB4_MARGIN_CAP_0_VOLTAGE_STEPS_SHIFT 6
+#define USB4_MARGIN_CAP_0_MAX_VOLTAGE_OFFSET_MASK GENMASK(18, 13)
+#define USB4_MARGIN_CAP_0_MAX_VOLTAGE_OFFSET_SHIFT 13
+#define USB4_MARGIN_CAP_1_TIME_DESTR BIT(8)
+#define USB4_MARGIN_CAP_1_TIME_INDP_MASK GENMASK(10, 9)
+#define USB4_MARGIN_CAP_1_TIME_INDP_SHIFT 9
+#define USB4_MARGIN_CAP_1_TIME_MIN 0x0
+#define USB4_MARGIN_CAP_1_TIME_LR 0x1
+#define USB4_MARGIN_CAP_1_TIME_BOTH 0x2
+#define USB4_MARGIN_CAP_1_TIME_STEPS_MASK GENMASK(15, 11)
+#define USB4_MARGIN_CAP_1_TIME_STEPS_SHIFT 11
+#define USB4_MARGIN_CAP_1_TIME_OFFSET_MASK GENMASK(20, 16)
+#define USB4_MARGIN_CAP_1_TIME_OFFSET_SHIFT 16
+#define USB4_MARGIN_CAP_1_MIN_BER_MASK GENMASK(25, 21)
+#define USB4_MARGIN_CAP_1_MIN_BER_SHIFT 21
+#define USB4_MARGIN_CAP_1_MAX_BER_MASK GENMASK(30, 26)
+#define USB4_MARGIN_CAP_1_MAX_BER_SHIFT 26
+#define USB4_MARGIN_CAP_1_MAX_BER_SHIFT 26
+
+/* USB4_SB_OPCODE_RUN_HW_LANE_MARGINING */
+#define USB4_MARGIN_HW_TIME BIT(3)
+#define USB4_MARGIN_HW_RH BIT(4)
+#define USB4_MARGIN_HW_BER_MASK GENMASK(9, 5)
+#define USB4_MARGIN_HW_BER_SHIFT 5
+
+/* Applicable to all margin values */
+#define USB4_MARGIN_HW_RES_1_MARGIN_MASK GENMASK(6, 0)
+#define USB4_MARGIN_HW_RES_1_EXCEEDS BIT(7)
+/* Different lane margin shifts */
+#define USB4_MARGIN_HW_RES_1_L0_LL_MARGIN_SHIFT 8
+#define USB4_MARGIN_HW_RES_1_L1_RH_MARGIN_SHIFT 16
+#define USB4_MARGIN_HW_RES_1_L1_LL_MARGIN_SHIFT 24
+
+/* USB4_SB_OPCODE_RUN_SW_LANE_MARGINING */
+#define USB4_MARGIN_SW_TIME BIT(3)
+#define USB4_MARGIN_SW_RH BIT(4)
+#define USB4_MARGIN_SW_COUNTER_MASK GENMASK(14, 13)
+#define USB4_MARGIN_SW_COUNTER_SHIFT 13
+#define USB4_MARGIN_SW_COUNTER_NOP 0x0
+#define USB4_MARGIN_SW_COUNTER_CLEAR 0x1
+#define USB4_MARGIN_SW_COUNTER_START 0x2
+#define USB4_MARGIN_SW_COUNTER_STOP 0x3
+
+#endif