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-rw-r--r--arch/mips/include/asm/netlogic/xlr/fmn.h363
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diff --git a/arch/mips/include/asm/netlogic/xlr/fmn.h b/arch/mips/include/asm/netlogic/xlr/fmn.h
new file mode 100644
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+++ b/arch/mips/include/asm/netlogic/xlr/fmn.h
@@ -0,0 +1,363 @@
+/*
+ * Copyright (c) 2003-2012 Broadcom Corporation
+ * All Rights Reserved
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the Broadcom
+ * license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _NLM_FMN_H_
+#define _NLM_FMN_H_
+
+#include <asm/netlogic/mips-extns.h> /* for COP2 access */
+
+/* Station IDs */
+#define FMN_STNID_CPU0 0x00
+#define FMN_STNID_CPU1 0x08
+#define FMN_STNID_CPU2 0x10
+#define FMN_STNID_CPU3 0x18
+#define FMN_STNID_CPU4 0x20
+#define FMN_STNID_CPU5 0x28
+#define FMN_STNID_CPU6 0x30
+#define FMN_STNID_CPU7 0x38
+
+#define FMN_STNID_XGS0_TX 64
+#define FMN_STNID_XMAC0_00_TX 64
+#define FMN_STNID_XMAC0_01_TX 65
+#define FMN_STNID_XMAC0_02_TX 66
+#define FMN_STNID_XMAC0_03_TX 67
+#define FMN_STNID_XMAC0_04_TX 68
+#define FMN_STNID_XMAC0_05_TX 69
+#define FMN_STNID_XMAC0_06_TX 70
+#define FMN_STNID_XMAC0_07_TX 71
+#define FMN_STNID_XMAC0_08_TX 72
+#define FMN_STNID_XMAC0_09_TX 73
+#define FMN_STNID_XMAC0_10_TX 74
+#define FMN_STNID_XMAC0_11_TX 75
+#define FMN_STNID_XMAC0_12_TX 76
+#define FMN_STNID_XMAC0_13_TX 77
+#define FMN_STNID_XMAC0_14_TX 78
+#define FMN_STNID_XMAC0_15_TX 79
+
+#define FMN_STNID_XGS1_TX 80
+#define FMN_STNID_XMAC1_00_TX 80
+#define FMN_STNID_XMAC1_01_TX 81
+#define FMN_STNID_XMAC1_02_TX 82
+#define FMN_STNID_XMAC1_03_TX 83
+#define FMN_STNID_XMAC1_04_TX 84
+#define FMN_STNID_XMAC1_05_TX 85
+#define FMN_STNID_XMAC1_06_TX 86
+#define FMN_STNID_XMAC1_07_TX 87
+#define FMN_STNID_XMAC1_08_TX 88
+#define FMN_STNID_XMAC1_09_TX 89
+#define FMN_STNID_XMAC1_10_TX 90
+#define FMN_STNID_XMAC1_11_TX 91
+#define FMN_STNID_XMAC1_12_TX 92
+#define FMN_STNID_XMAC1_13_TX 93
+#define FMN_STNID_XMAC1_14_TX 94
+#define FMN_STNID_XMAC1_15_TX 95
+
+#define FMN_STNID_GMAC 96
+#define FMN_STNID_GMACJFR_0 96
+#define FMN_STNID_GMACRFR_0 97
+#define FMN_STNID_GMACTX0 98
+#define FMN_STNID_GMACTX1 99
+#define FMN_STNID_GMACTX2 100
+#define FMN_STNID_GMACTX3 101
+#define FMN_STNID_GMACJFR_1 102
+#define FMN_STNID_GMACRFR_1 103
+
+#define FMN_STNID_DMA 104
+#define FMN_STNID_DMA_0 104
+#define FMN_STNID_DMA_1 105
+#define FMN_STNID_DMA_2 106
+#define FMN_STNID_DMA_3 107
+
+#define FMN_STNID_XGS0FR 112
+#define FMN_STNID_XMAC0JFR 112
+#define FMN_STNID_XMAC0RFR 113
+
+#define FMN_STNID_XGS1FR 114
+#define FMN_STNID_XMAC1JFR 114
+#define FMN_STNID_XMAC1RFR 115
+#define FMN_STNID_SEC 120
+#define FMN_STNID_SEC0 120
+#define FMN_STNID_SEC1 121
+#define FMN_STNID_SEC2 122
+#define FMN_STNID_SEC3 123
+#define FMN_STNID_PK0 124
+#define FMN_STNID_SEC_RSA 124
+#define FMN_STNID_SEC_RSVD0 125
+#define FMN_STNID_SEC_RSVD1 126
+#define FMN_STNID_SEC_RSVD2 127
+
+#define FMN_STNID_GMAC1 80
+#define FMN_STNID_GMAC1_FR_0 81
+#define FMN_STNID_GMAC1_TX0 82
+#define FMN_STNID_GMAC1_TX1 83
+#define FMN_STNID_GMAC1_TX2 84
+#define FMN_STNID_GMAC1_TX3 85
+#define FMN_STNID_GMAC1_FR_1 87
+#define FMN_STNID_GMAC0 96
+#define FMN_STNID_GMAC0_FR_0 97
+#define FMN_STNID_GMAC0_TX0 98
+#define FMN_STNID_GMAC0_TX1 99
+#define FMN_STNID_GMAC0_TX2 100
+#define FMN_STNID_GMAC0_TX3 101
+#define FMN_STNID_GMAC0_FR_1 103
+#define FMN_STNID_CMP_0 108
+#define FMN_STNID_CMP_1 109
+#define FMN_STNID_CMP_2 110
+#define FMN_STNID_CMP_3 111
+#define FMN_STNID_PCIE_0 116
+#define FMN_STNID_PCIE_1 117
+#define FMN_STNID_PCIE_2 118
+#define FMN_STNID_PCIE_3 119
+#define FMN_STNID_XLS_PK0 121
+
+#define nlm_read_c2_cc0(s) __read_32bit_c2_register($16, s)
+#define nlm_read_c2_cc1(s) __read_32bit_c2_register($17, s)
+#define nlm_read_c2_cc2(s) __read_32bit_c2_register($18, s)
+#define nlm_read_c2_cc3(s) __read_32bit_c2_register($19, s)
+#define nlm_read_c2_cc4(s) __read_32bit_c2_register($20, s)
+#define nlm_read_c2_cc5(s) __read_32bit_c2_register($21, s)
+#define nlm_read_c2_cc6(s) __read_32bit_c2_register($22, s)
+#define nlm_read_c2_cc7(s) __read_32bit_c2_register($23, s)
+#define nlm_read_c2_cc8(s) __read_32bit_c2_register($24, s)
+#define nlm_read_c2_cc9(s) __read_32bit_c2_register($25, s)
+#define nlm_read_c2_cc10(s) __read_32bit_c2_register($26, s)
+#define nlm_read_c2_cc11(s) __read_32bit_c2_register($27, s)
+#define nlm_read_c2_cc12(s) __read_32bit_c2_register($28, s)
+#define nlm_read_c2_cc13(s) __read_32bit_c2_register($29, s)
+#define nlm_read_c2_cc14(s) __read_32bit_c2_register($30, s)
+#define nlm_read_c2_cc15(s) __read_32bit_c2_register($31, s)
+
+#define nlm_write_c2_cc0(s, v) __write_32bit_c2_register($16, s, v)
+#define nlm_write_c2_cc1(s, v) __write_32bit_c2_register($17, s, v)
+#define nlm_write_c2_cc2(s, v) __write_32bit_c2_register($18, s, v)
+#define nlm_write_c2_cc3(s, v) __write_32bit_c2_register($19, s, v)
+#define nlm_write_c2_cc4(s, v) __write_32bit_c2_register($20, s, v)
+#define nlm_write_c2_cc5(s, v) __write_32bit_c2_register($21, s, v)
+#define nlm_write_c2_cc6(s, v) __write_32bit_c2_register($22, s, v)
+#define nlm_write_c2_cc7(s, v) __write_32bit_c2_register($23, s, v)
+#define nlm_write_c2_cc8(s, v) __write_32bit_c2_register($24, s, v)
+#define nlm_write_c2_cc9(s, v) __write_32bit_c2_register($25, s, v)
+#define nlm_write_c2_cc10(s, v) __write_32bit_c2_register($26, s, v)
+#define nlm_write_c2_cc11(s, v) __write_32bit_c2_register($27, s, v)
+#define nlm_write_c2_cc12(s, v) __write_32bit_c2_register($28, s, v)
+#define nlm_write_c2_cc13(s, v) __write_32bit_c2_register($29, s, v)
+#define nlm_write_c2_cc14(s, v) __write_32bit_c2_register($30, s, v)
+#define nlm_write_c2_cc15(s, v) __write_32bit_c2_register($31, s, v)
+
+#define nlm_read_c2_status(sel) __read_32bit_c2_register($2, 0)
+#define nlm_read_c2_config() __read_32bit_c2_register($3, 0)
+#define nlm_write_c2_config(v) __write_32bit_c2_register($3, 0, v)
+#define nlm_read_c2_bucksize(b) __read_32bit_c2_register($4, b)
+#define nlm_write_c2_bucksize(b, v) __write_32bit_c2_register($4, b, v)
+
+#define nlm_read_c2_rx_msg0() __read_64bit_c2_register($1, 0)
+#define nlm_read_c2_rx_msg1() __read_64bit_c2_register($1, 1)
+#define nlm_read_c2_rx_msg2() __read_64bit_c2_register($1, 2)
+#define nlm_read_c2_rx_msg3() __read_64bit_c2_register($1, 3)
+
+#define nlm_write_c2_tx_msg0(v) __write_64bit_c2_register($0, 0, v)
+#define nlm_write_c2_tx_msg1(v) __write_64bit_c2_register($0, 1, v)
+#define nlm_write_c2_tx_msg2(v) __write_64bit_c2_register($0, 2, v)
+#define nlm_write_c2_tx_msg3(v) __write_64bit_c2_register($0, 3, v)
+
+#define FMN_STN_RX_QSIZE 256
+#define FMN_NSTATIONS 128
+#define FMN_CORE_NBUCKETS 8
+
+static inline void nlm_msgsnd(unsigned int stid)
+{
+ __asm__ volatile (
+ ".set push\n"
+ ".set noreorder\n"
+ ".set noat\n"
+ "move $1, %0\n"
+ "c2 0x10001\n" /* msgsnd $1 */
+ ".set pop\n"
+ : : "r" (stid) : "$1"
+ );
+}
+
+static inline void nlm_msgld(unsigned int pri)
+{
+ __asm__ volatile (
+ ".set push\n"
+ ".set noreorder\n"
+ ".set noat\n"
+ "move $1, %0\n"
+ "c2 0x10002\n" /* msgld $1 */
+ ".set pop\n"
+ : : "r" (pri) : "$1"
+ );
+}
+
+static inline void nlm_msgwait(unsigned int mask)
+{
+ __asm__ volatile (
+ ".set push\n"
+ ".set noreorder\n"
+ ".set noat\n"
+ "move $8, %0\n"
+ "c2 0x10003\n" /* msgwait $1 */
+ ".set pop\n"
+ : : "r" (mask) : "$1"
+ );
+}
+
+/*
+ * Disable interrupts and enable COP2 access
+ */
+static inline uint32_t nlm_cop2_enable(void)
+{
+ uint32_t sr = read_c0_status();
+
+ write_c0_status((sr & ~ST0_IE) | ST0_CU2);
+ return sr;
+}
+
+static inline void nlm_cop2_restore(uint32_t sr)
+{
+ write_c0_status(sr);
+}
+
+static inline void nlm_fmn_setup_intr(int irq, unsigned int tmask)
+{
+ uint32_t config;
+
+ config = (1 << 24) /* interrupt water mark - 1 msg */
+ | (irq << 16) /* irq */
+ | (tmask << 8) /* thread mask */
+ | 0x2; /* enable watermark intr, disable empty intr */
+ nlm_write_c2_config(config);
+}
+
+struct nlm_fmn_msg {
+ uint64_t msg0;
+ uint64_t msg1;
+ uint64_t msg2;
+ uint64_t msg3;
+};
+
+static inline int nlm_fmn_send(unsigned int size, unsigned int code,
+ unsigned int stid, struct nlm_fmn_msg *msg)
+{
+ unsigned int dest;
+ uint32_t status;
+ int i;
+
+ /*
+ * Make sure that all the writes pending at the cpu are flushed.
+ * Any writes pending on CPU will not be see by devices. L1/L2
+ * caches are coherent with IO, so no cache flush needed.
+ */
+ __asm __volatile("sync");
+
+ /* Load TX message buffers */
+ nlm_write_c2_tx_msg0(msg->msg0);
+ nlm_write_c2_tx_msg1(msg->msg1);
+ nlm_write_c2_tx_msg2(msg->msg2);
+ nlm_write_c2_tx_msg3(msg->msg3);
+ dest = ((size - 1) << 16) | (code << 8) | stid;
+
+ /*
+ * Retry a few times on credit fail, this should be a
+ * transient condition, unless there is a configuration
+ * failure, or the receiver is stuck.
+ */
+ for (i = 0; i < 8; i++) {
+ nlm_msgsnd(dest);
+ status = nlm_read_c2_status(0);
+ if ((status & 0x2) == 1)
+ pr_info("Send pending fail!\n");
+ if ((status & 0x4) == 0)
+ return 0;
+ }
+
+ /* If there is a credit failure, return error */
+ return status & 0x06;
+}
+
+static inline int nlm_fmn_receive(int bucket, int *size, int *code, int *stid,
+ struct nlm_fmn_msg *msg)
+{
+ uint32_t status, tmp;
+
+ nlm_msgld(bucket);
+
+ /* wait for load pending to clear */
+ do {
+ status = nlm_read_c2_status(1);
+ } while ((status & 0x08) != 0);
+
+ /* receive error bits */
+ tmp = status & 0x30;
+ if (tmp != 0)
+ return tmp;
+
+ *size = ((status & 0xc0) >> 6) + 1;
+ *code = (status & 0xff00) >> 8;
+ *stid = (status & 0x7f0000) >> 16;
+ msg->msg0 = nlm_read_c2_rx_msg0();
+ msg->msg1 = nlm_read_c2_rx_msg1();
+ msg->msg2 = nlm_read_c2_rx_msg2();
+ msg->msg3 = nlm_read_c2_rx_msg3();
+
+ return 0;
+}
+
+struct xlr_fmn_info {
+ int num_buckets;
+ int start_stn_id;
+ int end_stn_id;
+ int credit_config[128];
+};
+
+struct xlr_board_fmn_config {
+ int bucket_size[128]; /* size of buckets for all stations */
+ struct xlr_fmn_info cpu[8];
+ struct xlr_fmn_info gmac[2];
+ struct xlr_fmn_info dma;
+ struct xlr_fmn_info cmp;
+ struct xlr_fmn_info sae;
+ struct xlr_fmn_info xgmac[2];
+};
+
+extern int nlm_register_fmn_handler(int start, int end,
+ void (*fn)(int, int, int, int, struct nlm_fmn_msg *, void *),
+ void *arg);
+extern void xlr_percpu_fmn_init(void);
+extern void nlm_setup_fmn_irq(void);
+extern void xlr_board_info_setup(void);
+
+extern struct xlr_board_fmn_config xlr_board_fmn_config;
+#endif