projects / OpenSPARC-T2-DV / blame
| Commit | Line | Data |
|---|---|---|
| 86530b38 AT |
1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== | |
| 3 | * | |
| 4 | * OpenSPARC T2 Processor File: system_init_pcie_wait.s | |
| 5 | * Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
| 6 | * 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
| 7 | * | |
| 8 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of the GNU General Public License as published by | |
| 12 | * the Free Software Foundation; version 2 of the License. | |
| 13 | * | |
| 14 | * This program is distributed in the hope that it will be useful, | |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | * GNU General Public License for more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU General Public License | |
| 20 | * along with this program; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 22 | * | |
| 23 | * For the avoidance of doubt, and except that if any non-GPL license | |
| 24 | * choice is available it will apply instead, Sun elects to use only | |
| 25 | * the General Public License version 2 (GPLv2) at this time for any | |
| 26 | * software where a choice of GPL license versions is made | |
| 27 | * available with the language indicating that GPLv2 or any later version | |
| 28 | * may be used, or where a choice of which version of the GPL is applied is | |
| 29 | * otherwise unspecified. | |
| 30 | * | |
| 31 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 32 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 33 | * have any questions. | |
| 34 | * | |
| 35 | * | |
| 36 | * ========== Copyright Header End ============================================ | |
| 37 | */ | |
| 38 | #include "peu_defines.h" | |
| 39 | #include "dmu_peu_regs.h" | |
| 40 | ||
| 41 | PEU_LINK_TRAINING_WAIT: | |
| 42 | ! | |
| 43 | ! Skip the wait for link training if in Riesling. | |
| 44 | ! | |
| 45 | #ifdef SKIP_PCIE_LINK_WAIT | |
| 46 | ba LinkTrainingDone | |
| 47 | nop | |
| 48 | #endif | |
| 49 | ||
| 50 | ! | |
| 51 | ! wait for the "Link Up" status bit to get set in the PEU | |
| 52 | ! | |
| 53 | setx FIRE_PLC_TLU_CTB_TLR_CSR_A_OE_ERR_RW1C_ALIAS_ADDR, %g2, %g3 | |
| 54 | ||
| 55 | mov 1023, %l0 | |
| 56 | mov FIRE_PLC_TLU_CTB_TLR_CSR_A_OE_EN_ERR__LUP_P, %l1 | |
| 57 | ||
| 58 | LinkTrainingLoop: | |
| 59 | #ifndef FC_NO_PEU_VERA | |
| 60 | nop ! $EV trig_pc_d(1, @VA(.RED_EXT_SEC.LinkTrainingLoop)) -> printf("\nIn loop_LinkTraining \n") | |
| 61 | #endif | |
| 62 | ldx [%g3], %g4 | |
| 63 | andcc %l1, %g4, %g5 | |
| 64 | bne LinkTrainingDone | |
| 65 | nop | |
| 66 | ||
| 67 | dec %l0 | |
| 68 | brnz %l0, LinkTrainingLoop | |
| 69 | nop | |
| 70 | ||
| 71 | LinkTrainingTimeout: | |
| 72 | ta T_BAD_TRAP | |
| 73 | nop | |
| 74 | ||
| 75 | LinkTrainingDone: | |
| 76 | #ifndef FC_NO_PEU_VERA | |
| 77 | nop ! $EV trig_pc_d(1, @VA(.RED_EXT_SEC.LinkTrainingDone)) -> printf("\nPCI LinkTraining done\n") | |
| 78 | #endif | |
| 79 | ||
| 80 | #if defined(FC_NO_PEU_VERA) | |
| 81 | #include "dmaept_init.h" | |
| 82 | call DMAEptInit | |
| 83 | nop | |
| 84 | #endif |