mips: octeon: Add cvmx-xcv-defs.h header file

Import cvmx-xcv-defs.h header file from 2013 U-Boot. It will be used
by the later added drivers to support networking on the MIPS Octeon II /
III platforms.

Signed-off-by: Aaron Williams <awilliams@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>

arch/mips/mach-octeon/include/mach/cvmx-xcv-defs.h

@@ -0,0 +1,226 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018-2022 Marvell International Ltd.
+ *
+ * Configuration and status register (CSR) type definitions for
+ * Octeon xcv.
+ */
+
+#ifndef __CVMX_XCV_DEFS_H__
+#define __CVMX_XCV_DEFS_H__
+
+#define CVMX_XCV_BATCH_CRD_RET (0x00011800DB000100ull)
+#define CVMX_XCV_COMP_CTL      (0x00011800DB000020ull)
+#define CVMX_XCV_CTL	       (0x00011800DB000030ull)
+#define CVMX_XCV_DLL_CTL       (0x00011800DB000010ull)
+#define CVMX_XCV_ECO	       (0x00011800DB000200ull)
+#define CVMX_XCV_INBND_STATUS  (0x00011800DB000080ull)
+#define CVMX_XCV_INT	       (0x00011800DB000040ull)
+#define CVMX_XCV_RESET	       (0x00011800DB000000ull)
+
+/**
+ * cvmx_xcv_batch_crd_ret
+ */
+union cvmx_xcv_batch_crd_ret {
+	u64 u64;
+	struct cvmx_xcv_batch_crd_ret_s {
+		u64 reserved_1_63 : 63;
+		u64 crd_ret : 1;
+	} s;
+	struct cvmx_xcv_batch_crd_ret_s cn73xx;
+};
+
+typedef union cvmx_xcv_batch_crd_ret cvmx_xcv_batch_crd_ret_t;
+
+/**
+ * cvmx_xcv_comp_ctl
+ *
+ * This register controls programmable compensation.
+ *
+ */
+union cvmx_xcv_comp_ctl {
+	u64 u64;
+	struct cvmx_xcv_comp_ctl_s {
+		u64 drv_byp : 1;
+		u64 reserved_61_62 : 2;
+		u64 cmp_pctl : 5;
+		u64 reserved_53_55 : 3;
+		u64 cmp_nctl : 5;
+		u64 reserved_45_47 : 3;
+		u64 drv_pctl : 5;
+		u64 reserved_37_39 : 3;
+		u64 drv_nctl : 5;
+		u64 reserved_31_31 : 1;
+		u64 pctl_lock : 1;
+		u64 pctl_sat : 1;
+		u64 reserved_28_28 : 1;
+		u64 nctl_lock : 1;
+		u64 reserved_1_26 : 26;
+		u64 nctl_sat : 1;
+	} s;
+	struct cvmx_xcv_comp_ctl_s cn73xx;
+};
+
+typedef union cvmx_xcv_comp_ctl cvmx_xcv_comp_ctl_t;
+
+/**
+ * cvmx_xcv_ctl
+ *
+ * This register contains the status control bits.
+ *
+ */
+union cvmx_xcv_ctl {
+	u64 u64;
+	struct cvmx_xcv_ctl_s {
+		u64 reserved_4_63 : 60;
+		u64 lpbk_ext : 1;
+		u64 lpbk_int : 1;
+		u64 speed : 2;
+	} s;
+	struct cvmx_xcv_ctl_s cn73xx;
+};
+
+typedef union cvmx_xcv_ctl cvmx_xcv_ctl_t;
+
+/**
+ * cvmx_xcv_dll_ctl
+ *
+ * The RGMII timing specification requires that devices transmit clock and
+ * data synchronously. The specification requires external sources (namely
+ * the PC board trace routes) to introduce the appropriate 1.5 to 2.0 ns of
+ * delay.
+ *
+ * To eliminate the need for the PC board delays, the RGMII interface has optional
+ * on-board DLLs for both transmit and receive. For correct operation, at most one
+ * of the transmitter, board, or receiver involved in an RGMII link should
+ * introduce delay. By default/reset, the RGMII receivers delay the received clock,
+ * and the RGMII transmitters do not delay the transmitted clock. Whether this
+ * default works as-is with a given link partner depends on the behavior of the
+ * link partner and the PC board.
+ *
+ * These are the possible modes of RGMII receive operation:
+ *
+ * * XCV_DLL_CTL[CLKRX_BYP] = 0 (reset value) - The RGMII
+ * receive interface introduces clock delay using its internal DLL.
+ * This mode is appropriate if neither the remote
+ * transmitter nor the PC board delays the clock.
+ *
+ * * XCV_DLL_CTL[CLKRX_BYP] = 1, [CLKRX_SET] = 0x0 - The
+ * RGMII receive interface introduces no clock delay. This mode
+ * is appropriate if either the remote transmitter or the PC board
+ * delays the clock.
+ *
+ * These are the possible modes of RGMII transmit operation:
+ *
+ * * XCV_DLL_CTL[CLKTX_BYP] = 1, [CLKTX_SET] = 0x0 (reset value) -
+ * The RGMII transmit interface introduces no clock
+ * delay. This mode is appropriate is either the remote receiver
+ * or the PC board delays the clock.
+ *
+ * * XCV_DLL_CTL[CLKTX_BYP] = 0 - The RGMII transmit
+ * interface introduces clock delay using its internal DLL.
+ * This mode is appropriate if neither the remote receiver
+ * nor the PC board delays the clock.
+ */
+union cvmx_xcv_dll_ctl {
+	u64 u64;
+	struct cvmx_xcv_dll_ctl_s {
+		u64 reserved_32_63 : 32;
+		u64 lock : 1;
+		u64 clk_set : 7;
+		u64 clkrx_byp : 1;
+		u64 clkrx_set : 7;
+		u64 clktx_byp : 1;
+		u64 clktx_set : 7;
+		u64 reserved_2_7 : 6;
+		u64 refclk_sel : 2;
+	} s;
+	struct cvmx_xcv_dll_ctl_s cn73xx;
+};
+
+typedef union cvmx_xcv_dll_ctl cvmx_xcv_dll_ctl_t;
+
+/**
+ * cvmx_xcv_eco
+ */
+union cvmx_xcv_eco {
+	u64 u64;
+	struct cvmx_xcv_eco_s {
+		u64 reserved_16_63 : 48;
+		u64 eco_rw : 16;
+	} s;
+	struct cvmx_xcv_eco_s cn73xx;
+};
+
+typedef union cvmx_xcv_eco cvmx_xcv_eco_t;
+
+/**
+ * cvmx_xcv_inbnd_status
+ *
+ * This register contains RGMII in-band status.
+ *
+ */
+union cvmx_xcv_inbnd_status {
+	u64 u64;
+	struct cvmx_xcv_inbnd_status_s {
+		u64 reserved_4_63 : 60;
+		u64 duplex : 1;
+		u64 speed : 2;
+		u64 link : 1;
+	} s;
+	struct cvmx_xcv_inbnd_status_s cn73xx;
+};
+
+typedef union cvmx_xcv_inbnd_status cvmx_xcv_inbnd_status_t;
+
+/**
+ * cvmx_xcv_int
+ *
+ * This register controls interrupts.
+ *
+ */
+union cvmx_xcv_int {
+	u64 u64;
+	struct cvmx_xcv_int_s {
+		u64 reserved_7_63 : 57;
+		u64 tx_ovrflw : 1;
+		u64 tx_undflw : 1;
+		u64 incomp_byte : 1;
+		u64 duplex : 1;
+		u64 reserved_2_2 : 1;
+		u64 speed : 1;
+		u64 link : 1;
+	} s;
+	struct cvmx_xcv_int_s cn73xx;
+};
+
+typedef union cvmx_xcv_int cvmx_xcv_int_t;
+
+/**
+ * cvmx_xcv_reset
+ *
+ * This register controls reset.
+ *
+ */
+union cvmx_xcv_reset {
+	u64 u64;
+	struct cvmx_xcv_reset_s {
+		u64 enable : 1;
+		u64 reserved_16_62 : 47;
+		u64 clkrst : 1;
+		u64 reserved_12_14 : 3;
+		u64 dllrst : 1;
+		u64 reserved_8_10 : 3;
+		u64 comp : 1;
+		u64 reserved_4_6 : 3;
+		u64 tx_pkt_rst_n : 1;
+		u64 tx_dat_rst_n : 1;
+		u64 rx_pkt_rst_n : 1;
+		u64 rx_dat_rst_n : 1;
+	} s;
+	struct cvmx_xcv_reset_s cn73xx;
+};
+
+typedef union cvmx_xcv_reset cvmx_xcv_reset_t;
+
+#endif