diff options
Diffstat (limited to 'sys/contrib/octeon-sdk/cvmx-helper-errata.c')
| -rw-r--r-- | sys/contrib/octeon-sdk/cvmx-helper-errata.c | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/sys/contrib/octeon-sdk/cvmx-helper-errata.c b/sys/contrib/octeon-sdk/cvmx-helper-errata.c deleted file mode 100644 index cf1313b4f3e9..000000000000 --- a/sys/contrib/octeon-sdk/cvmx-helper-errata.c +++ /dev/null @@ -1,329 +0,0 @@ -/***********************license start*************** - * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights - * reserved. - * - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * * 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. - - * * Neither the name of Cavium Inc. nor the names of - * its contributors may be used to endorse or promote products - * derived from this software without specific prior written - * permission. - - * This Software, including technical data, may be subject to U.S. export control - * laws, including the U.S. Export Administration Act and its associated - * regulations, and may be subject to export or import regulations in other - * countries. - - * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" - * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR - * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO - * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR - * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM - * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, - * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF - * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR - * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR - * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. - ***********************license end**************************************/ - - - - - - - -/** - * @file - * - * Fixes and workaround for Octeon chip errata. This file - * contains functions called by cvmx-helper to workaround known - * chip errata. For the most part, code doesn't need to call - * these functions directly. - * - * <hr>$Revision: 70030 $<hr> - */ -#ifdef CVMX_BUILD_FOR_LINUX_KERNEL -#include <asm/octeon/cvmx.h> -#include <asm/octeon/cvmx-helper.h> -#include <asm/octeon/cvmx-helper-jtag.h> -#include <asm/octeon/cvmx-pko.h> -#include <asm/octeon/cvmx-asxx-defs.h> -#include <asm/octeon/cvmx-gmxx-defs.h> -#else -#if !defined(__FreeBSD__) || !defined(_KERNEL) -#include "executive-config.h" -#include "cvmx-config.h" -#endif - -#include "cvmx.h" - -#include "cvmx-fpa.h" -#include "cvmx-pip.h" -#include "cvmx-pko.h" -#include "cvmx-ipd.h" -#include "cvmx-gmx.h" -#include "cvmx-spi.h" -#include "cvmx-pow.h" -#include "cvmx-sysinfo.h" -#include "cvmx-helper.h" -#include "cvmx-helper-jtag.h" -#endif - - -#ifdef CVMX_ENABLE_PKO_FUNCTIONS - - -/** - * @INTERNAL - * Function to adjust internal IPD pointer alignments - * - * @return 0 on success - * !0 on failure - */ -int __cvmx_helper_errata_fix_ipd_ptr_alignment(void) -{ -#define FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES (CVMX_FPA_PACKET_POOL_SIZE-8-CVMX_HELPER_FIRST_MBUFF_SKIP) -#define FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES (CVMX_FPA_PACKET_POOL_SIZE-8-CVMX_HELPER_NOT_FIRST_MBUFF_SKIP) -#define FIX_IPD_OUTPORT 0 -#define INTERFACE(port) (port >> 4) /* Ports 0-15 are interface 0, 16-31 are interface 1 */ -#define INDEX(port) (port & 0xf) - uint64_t *p64; - cvmx_pko_command_word0_t pko_command; - cvmx_buf_ptr_t g_buffer, pkt_buffer; - cvmx_wqe_t *work; - int size, num_segs = 0, wqe_pcnt, pkt_pcnt; - cvmx_gmxx_prtx_cfg_t gmx_cfg; - int retry_cnt; - int retry_loop_cnt; - int i; - cvmx_helper_link_info_t link_info; - - /* Save values for restore at end */ - uint64_t prtx_cfg = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); - uint64_t tx_ptr_en = cvmx_read_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT))); - uint64_t rx_ptr_en = cvmx_read_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT))); - uint64_t rxx_jabber = cvmx_read_csr(CVMX_GMXX_RXX_JABBER(INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); - uint64_t frame_max = cvmx_read_csr(CVMX_GMXX_RXX_FRM_MAX(INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); - - /* Configure port to gig FDX as required for loopback mode */ - cvmx_helper_rgmii_internal_loopback(FIX_IPD_OUTPORT); - - /* Disable reception on all ports so if traffic is present it will not interfere. */ - cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), 0); - - cvmx_wait(100000000ull); - - for (retry_loop_cnt = 0;retry_loop_cnt < 10;retry_loop_cnt++) - { - retry_cnt = 100000; - wqe_pcnt = cvmx_read_csr(CVMX_IPD_PTR_COUNT); - pkt_pcnt = (wqe_pcnt >> 7) & 0x7f; - wqe_pcnt &= 0x7f; - - num_segs = (2 + pkt_pcnt - wqe_pcnt) & 3; - - if (num_segs == 0) - goto fix_ipd_exit; - - num_segs += 1; - - size = FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES + ((num_segs-1)*FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES) - - (FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES / 2); - - cvmx_write_csr(CVMX_ASXX_PRT_LOOP(INTERFACE(FIX_IPD_OUTPORT)), 1 << INDEX(FIX_IPD_OUTPORT)); - CVMX_SYNC; - - g_buffer.u64 = 0; - g_buffer.s.addr = cvmx_ptr_to_phys(cvmx_fpa_alloc(CVMX_FPA_WQE_POOL)); - if (g_buffer.s.addr == 0) { - cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT buffer allocation failure.\n"); - goto fix_ipd_exit; - } - - g_buffer.s.pool = CVMX_FPA_WQE_POOL; - g_buffer.s.size = num_segs; - - pkt_buffer.u64 = 0; - pkt_buffer.s.addr = cvmx_ptr_to_phys(cvmx_fpa_alloc(CVMX_FPA_PACKET_POOL)); - if (pkt_buffer.s.addr == 0) { - cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT buffer allocation failure.\n"); - goto fix_ipd_exit; - } - pkt_buffer.s.i = 1; - pkt_buffer.s.pool = CVMX_FPA_PACKET_POOL; - pkt_buffer.s.size = FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES; - - p64 = (uint64_t*) cvmx_phys_to_ptr(pkt_buffer.s.addr); - p64[0] = 0xffffffffffff0000ull; - p64[1] = 0x08004510ull; - p64[2] = ((uint64_t)(size-14) << 48) | 0x5ae740004000ull; - p64[3] = 0x3a5fc0a81073c0a8ull; - - for (i=0;i<num_segs;i++) - { - if (i>0) - pkt_buffer.s.size = FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES; - - if (i==(num_segs-1)) - pkt_buffer.s.i = 0; - - *(uint64_t*)cvmx_phys_to_ptr(g_buffer.s.addr + 8*i) = pkt_buffer.u64; - } - - /* Build the PKO command */ - pko_command.u64 = 0; - pko_command.s.segs = num_segs; - pko_command.s.total_bytes = size; - pko_command.s.dontfree = 0; - pko_command.s.gather = 1; - - gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); - gmx_cfg.s.en = 1; - cvmx_write_csr(CVMX_GMXX_PRTX_CFG(INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), gmx_cfg.u64); - cvmx_write_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), 1 << INDEX(FIX_IPD_OUTPORT)); - cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), 1 << INDEX(FIX_IPD_OUTPORT)); - - cvmx_write_csr(CVMX_GMXX_RXX_JABBER(INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), 65392-14-4); - cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX(INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), 65392-14-4); - - cvmx_pko_send_packet_prepare(FIX_IPD_OUTPORT, cvmx_pko_get_base_queue(FIX_IPD_OUTPORT), CVMX_PKO_LOCK_CMD_QUEUE); - cvmx_pko_send_packet_finish(FIX_IPD_OUTPORT, cvmx_pko_get_base_queue(FIX_IPD_OUTPORT), pko_command, g_buffer, CVMX_PKO_LOCK_CMD_QUEUE); - - CVMX_SYNC; - - do { - work = cvmx_pow_work_request_sync(CVMX_POW_WAIT); - retry_cnt--; - } while ((work == NULL) && (retry_cnt > 0)); - - if (!retry_cnt) - cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT get_work() timeout occurred.\n"); - - - /* Free packet */ - if (work) - cvmx_helper_free_packet_data(work); - } - -fix_ipd_exit: - - /* Return CSR configs to saved values */ - cvmx_write_csr(CVMX_GMXX_PRTX_CFG(INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), prtx_cfg); - cvmx_write_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), tx_ptr_en); - cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), rx_ptr_en); - cvmx_write_csr(CVMX_GMXX_RXX_JABBER(INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), rxx_jabber); - cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX(INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), frame_max); - cvmx_write_csr(CVMX_ASXX_PRT_LOOP(INTERFACE(FIX_IPD_OUTPORT)), 0); - link_info.u64 = 0; /* Set link to down so autonegotiation will set it up again */ - cvmx_helper_link_set(FIX_IPD_OUTPORT, link_info); - - /* Bring the link back up as autonegotiation is not done in user applications. */ - cvmx_helper_link_autoconf(FIX_IPD_OUTPORT); - - CVMX_SYNC; - if (num_segs) - cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT failed.\n"); - - return(!!num_segs); - -} - - -/** - * This function needs to be called on all Octeon chips with - * errata PKI-100. - * - * The Size field is 8 too large in WQE and next pointers - * - * The Size field generated by IPD is 8 larger than it should - * be. The Size field is <55:40> of both: - * - WORD3 in the work queue entry, and - * - the next buffer pointer (which precedes the packet data - * in each buffer). - * - * @param work Work queue entry to fix - * @return Zero on success. Negative on failure - */ -int cvmx_helper_fix_ipd_packet_chain(cvmx_wqe_t *work) -{ - uint64_t number_buffers = work->word2.s.bufs; - - /* We only need to do this if the work has buffers */ - if (number_buffers) - { - cvmx_buf_ptr_t buffer_ptr = work->packet_ptr; - /* Check for errata PKI-100 */ - if ( (buffer_ptr.s.pool == 0) && (((uint64_t)buffer_ptr.s.size + - ((uint64_t)buffer_ptr.s.back << 7) + ((uint64_t)buffer_ptr.s.addr & 0x7F)) - != (CVMX_FPA_PACKET_POOL_SIZE+8))) { - /* fix is not needed */ - return 0; - } - /* Decrement the work packet pointer */ - buffer_ptr.s.size -= 8; - work->packet_ptr = buffer_ptr; - - /* Now loop through decrementing the size for each additional buffer */ - while (--number_buffers) - { - /* Chain pointers are 8 bytes before the data */ - cvmx_buf_ptr_t *ptr = (cvmx_buf_ptr_t*)cvmx_phys_to_ptr(buffer_ptr.s.addr - 8); - buffer_ptr = *ptr; - buffer_ptr.s.size -= 8; - *ptr = buffer_ptr; - } - } - /* Make sure that these write go out before other operations such as FPA frees */ - CVMX_SYNCWS; - return 0; -} - -#endif /* CVMX_ENABLE_PKO_FUNCTIONS */ - - -/** - * Due to errata G-720, the 2nd order CDR circuit on CN52XX pass - * 1 doesn't work properly. The following code disables 2nd order - * CDR for the specified QLM. - * - * @param qlm QLM to disable 2nd order CDR for. - */ -void __cvmx_helper_errata_qlm_disable_2nd_order_cdr(int qlm) -{ - int lane; - /* Apply the workaround only once. */ - cvmx_ciu_qlm_jtgd_t qlm_jtgd; - qlm_jtgd.u64 = cvmx_read_csr(CVMX_CIU_QLM_JTGD); - if (qlm_jtgd.s.select != 0) - return; - - cvmx_helper_qlm_jtag_init(); - /* We need to load all four lanes of the QLM, a total of 1072 bits */ - for (lane=0; lane<4; lane++) - { - /* Each lane has 268 bits. We need to set cfg_cdr_incx<67:64>=3 and - cfg_cdr_secord<77>=1. All other bits are zero. Bits go in LSB - first, so start off with the zeros for bits <63:0> */ - cvmx_helper_qlm_jtag_shift_zeros(qlm, 63 - 0 + 1); - /* cfg_cdr_incx<67:64>=3 */ - cvmx_helper_qlm_jtag_shift(qlm, 67 - 64 + 1, 3); - /* Zeros for bits <76:68> */ - cvmx_helper_qlm_jtag_shift_zeros(qlm, 76 - 68 + 1); - /* cfg_cdr_secord<77>=1 */ - cvmx_helper_qlm_jtag_shift(qlm, 77 - 77 + 1, 1); - /* Zeros for bits <267:78> */ - cvmx_helper_qlm_jtag_shift_zeros(qlm, 267 - 78 + 1); - } - cvmx_helper_qlm_jtag_update(qlm); -} |