aboutsummaryrefslogtreecommitdiff
path: root/arch/tile/include/arch/trio_pcie_intfc.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/tile/include/arch/trio_pcie_intfc.h')
-rw-r--r--arch/tile/include/arch/trio_pcie_intfc.h229
1 files changed, 229 insertions, 0 deletions
diff --git a/arch/tile/include/arch/trio_pcie_intfc.h b/arch/tile/include/arch/trio_pcie_intfc.h
new file mode 100644
index 00000000000..0487fdb9d58
--- /dev/null
+++ b/arch/tile/include/arch/trio_pcie_intfc.h
@@ -0,0 +1,229 @@
+/*
+ * Copyright 2012 Tilera Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for
+ * more details.
+ */
+
+/* Machine-generated file; do not edit. */
+
+#ifndef __ARCH_TRIO_PCIE_INTFC_H__
+#define __ARCH_TRIO_PCIE_INTFC_H__
+
+#include <arch/abi.h>
+#include <arch/trio_pcie_intfc_def.h>
+
+#ifndef __ASSEMBLER__
+
+/*
+ * Port Configuration.
+ * Configuration of the PCIe Port
+ */
+
+__extension__
+typedef union
+{
+ struct
+ {
+#ifndef __BIG_ENDIAN__
+ /* Provides the state of the strapping pins for this port. */
+ uint_reg_t strap_state : 3;
+ /* Reserved. */
+ uint_reg_t __reserved_0 : 1;
+ /*
+ * When 1, the device type will be overridden using OVD_DEV_TYPE_VAL.
+ * When 0, the device type is determined based on the STRAP_STATE.
+ */
+ uint_reg_t ovd_dev_type : 1;
+ /* Provides the device type when OVD_DEV_TYPE is 1. */
+ uint_reg_t ovd_dev_type_val : 4;
+ /* Determines how link is trained. */
+ uint_reg_t train_mode : 2;
+ /* Reserved. */
+ uint_reg_t __reserved_1 : 1;
+ /*
+ * For PCIe, used to flip physical RX lanes that were not properly wired.
+ * This is not the same as lane reversal which is handled automatically
+ * during link training. When 0, RX Lane0 must be wired to the link
+ * partner (either to its Lane0 or it's LaneN). When RX_LANE_FLIP is 1,
+ * the highest numbered lane for this port becomes Lane0 and Lane0 does
+ * NOT have to be wired to the link partner.
+ */
+ uint_reg_t rx_lane_flip : 1;
+ /*
+ * For PCIe, used to flip physical TX lanes that were not properly wired.
+ * This is not the same as lane reversal which is handled automatically
+ * during link training. When 0, TX Lane0 must be wired to the link
+ * partner (either to its Lane0 or it's LaneN). When TX_LANE_FLIP is 1,
+ * the highest numbered lane for this port becomes Lane0 and Lane0 does
+ * NOT have to be wired to the link partner.
+ */
+ uint_reg_t tx_lane_flip : 1;
+ /*
+ * For StreamIO port, configures the width of the port when TRAIN_MODE is
+ * not STRAP.
+ */
+ uint_reg_t stream_width : 2;
+ /*
+ * For StreamIO port, configures the rate of the port when TRAIN_MODE is
+ * not STRAP.
+ */
+ uint_reg_t stream_rate : 2;
+ /* Reserved. */
+ uint_reg_t __reserved_2 : 46;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t __reserved_2 : 46;
+ uint_reg_t stream_rate : 2;
+ uint_reg_t stream_width : 2;
+ uint_reg_t tx_lane_flip : 1;
+ uint_reg_t rx_lane_flip : 1;
+ uint_reg_t __reserved_1 : 1;
+ uint_reg_t train_mode : 2;
+ uint_reg_t ovd_dev_type_val : 4;
+ uint_reg_t ovd_dev_type : 1;
+ uint_reg_t __reserved_0 : 1;
+ uint_reg_t strap_state : 3;
+#endif
+ };
+
+ uint_reg_t word;
+} TRIO_PCIE_INTFC_PORT_CONFIG_t;
+
+/*
+ * Port Status.
+ * Status of the PCIe Port. This register applies to the StreamIO port when
+ * StreamIO is enabled.
+ */
+
+__extension__
+typedef union
+{
+ struct
+ {
+#ifndef __BIG_ENDIAN__
+ /*
+ * Indicates the DL state of the port. When 1, the port is up and ready
+ * to receive traffic.
+ */
+ uint_reg_t dl_up : 1;
+ /*
+ * Indicates the number of times the link has gone down. Clears on read.
+ */
+ uint_reg_t dl_down_cnt : 7;
+ /* Indicates the SERDES PLL has spun up and is providing a valid clock. */
+ uint_reg_t clock_ready : 1;
+ /* Reserved. */
+ uint_reg_t __reserved_0 : 7;
+ /* Device revision ID. */
+ uint_reg_t device_rev : 8;
+ /* Link state (PCIe). */
+ uint_reg_t ltssm_state : 6;
+ /* Link power management state (PCIe). */
+ uint_reg_t pm_state : 3;
+ /* Reserved. */
+ uint_reg_t __reserved_1 : 31;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t __reserved_1 : 31;
+ uint_reg_t pm_state : 3;
+ uint_reg_t ltssm_state : 6;
+ uint_reg_t device_rev : 8;
+ uint_reg_t __reserved_0 : 7;
+ uint_reg_t clock_ready : 1;
+ uint_reg_t dl_down_cnt : 7;
+ uint_reg_t dl_up : 1;
+#endif
+ };
+
+ uint_reg_t word;
+} TRIO_PCIE_INTFC_PORT_STATUS_t;
+
+/*
+ * Transmit FIFO Control.
+ * Contains TX FIFO thresholds. These registers are for diagnostics purposes
+ * only. Changing these values causes undefined behavior.
+ */
+
+__extension__
+typedef union
+{
+ struct
+ {
+#ifndef __BIG_ENDIAN__
+ /*
+ * Almost-Empty level for TX0 data. Typically set to at least
+ * roundup(38.0*M/N) where N=tclk frequency and M=MAC symbol rate in MHz
+ * for a x4 port (250MHz).
+ */
+ uint_reg_t tx0_data_ae_lvl : 7;
+ /* Reserved. */
+ uint_reg_t __reserved_0 : 1;
+ /* Almost-Empty level for TX1 data. */
+ uint_reg_t tx1_data_ae_lvl : 7;
+ /* Reserved. */
+ uint_reg_t __reserved_1 : 1;
+ /* Almost-Full level for TX0 data. */
+ uint_reg_t tx0_data_af_lvl : 7;
+ /* Reserved. */
+ uint_reg_t __reserved_2 : 1;
+ /* Almost-Full level for TX1 data. */
+ uint_reg_t tx1_data_af_lvl : 7;
+ /* Reserved. */
+ uint_reg_t __reserved_3 : 1;
+ /* Almost-Full level for TX0 info. */
+ uint_reg_t tx0_info_af_lvl : 5;
+ /* Reserved. */
+ uint_reg_t __reserved_4 : 3;
+ /* Almost-Full level for TX1 info. */
+ uint_reg_t tx1_info_af_lvl : 5;
+ /* Reserved. */
+ uint_reg_t __reserved_5 : 3;
+ /*
+ * This register provides performance adjustment for high bandwidth
+ * flows. The MAC will assert almost-full to TRIO if non-posted credits
+ * fall below this level. Note that setting this larger than the initial
+ * PORT_CREDIT.NPH value will cause READS to never be sent. If the
+ * initial credit value from the link partner is smaller than this value
+ * when the link comes up, the value will be reset to the initial credit
+ * value to prevent lockup.
+ */
+ uint_reg_t min_np_credits : 8;
+ /*
+ * This register provides performance adjustment for high bandwidth
+ * flows. The MAC will assert almost-full to TRIO if posted credits fall
+ * below this level. Note that setting this larger than the initial
+ * PORT_CREDIT.PH value will cause WRITES to never be sent. If the
+ * initial credit value from the link partner is smaller than this value
+ * when the link comes up, the value will be reset to the initial credit
+ * value to prevent lockup.
+ */
+ uint_reg_t min_p_credits : 8;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t min_p_credits : 8;
+ uint_reg_t min_np_credits : 8;
+ uint_reg_t __reserved_5 : 3;
+ uint_reg_t tx1_info_af_lvl : 5;
+ uint_reg_t __reserved_4 : 3;
+ uint_reg_t tx0_info_af_lvl : 5;
+ uint_reg_t __reserved_3 : 1;
+ uint_reg_t tx1_data_af_lvl : 7;
+ uint_reg_t __reserved_2 : 1;
+ uint_reg_t tx0_data_af_lvl : 7;
+ uint_reg_t __reserved_1 : 1;
+ uint_reg_t tx1_data_ae_lvl : 7;
+ uint_reg_t __reserved_0 : 1;
+ uint_reg_t tx0_data_ae_lvl : 7;
+#endif
+ };
+
+ uint_reg_t word;
+} TRIO_PCIE_INTFC_TX_FIFO_CTL_t;
+#endif /* !defined(__ASSEMBLER__) */
+
+#endif /* !defined(__ARCH_TRIO_PCIE_INTFC_H__) */