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git://nv-tegra.nvidia.com/kernel/nvethernetrm.git
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eea36c7572
- Return success xpcs-base is null for now. - Add is mac enable support for MGBE. - Call HW type common API base on MAC HW. - Add generic channel mask macro. Bug 200718904 Change-Id: Icc228697d0464c18af77312457a6bcfbf484ab7d Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/kernel/nvethernetrm/+/2532466 Reviewed-by: Narayan Reddy <narayanr@nvidia.com> Reviewed-by: Bhadram Varka <vbhadram@nvidia.com>
86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/*
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* Copyright (c) 2020-2021, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "../osi/common/common.h"
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#include "mgbe_common.h"
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/**
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* @brief mgbe_get_systime_from_mac - Get system time from MAC
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*
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* Algorithm: Get current system time
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*
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* @param[in] addr: Base address indicating the start of
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* memory mapped IO region of the MAC.
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*
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* @note MAC should be init and started. see osi_start_mac()
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*
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* @retval 0 on success
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* @retval -1 on failure.
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*/
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nveul64_t mgbe_get_systime_from_mac(void *addr)
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{
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nveul64_t ns1, ns2, ns = 0;
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nveu32_t varmac_stnsr, temp1;
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nveu32_t varmac_stsr;
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varmac_stnsr = osi_readl((nveu8_t *)addr + MGBE_MAC_STNSR);
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temp1 = (varmac_stnsr & MGBE_MAC_STNSR_TSSS_MASK);
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ns1 = (nveul64_t)temp1;
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varmac_stsr = osi_readl((nveu8_t *)addr + MGBE_MAC_STSR);
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varmac_stnsr = osi_readl((nveu8_t *)addr + MGBE_MAC_STNSR);
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temp1 = (varmac_stnsr & MGBE_MAC_STNSR_TSSS_MASK);
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ns2 = (nveul64_t)temp1;
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/* if ns1 is greater than ns2, it means nsec counter rollover
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* happened. In that case read the updated sec counter again
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*/
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if (ns1 >= ns2) {
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varmac_stsr = osi_readl((nveu8_t *)addr + MGBE_MAC_STSR);
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/* convert sec/high time value to nanosecond */
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if (varmac_stsr < UINT_MAX) {
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ns = ns2 + (varmac_stsr * OSI_NSEC_PER_SEC);
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}
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} else {
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/* convert sec/high time value to nanosecond */
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if (varmac_stsr < UINT_MAX) {
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ns = ns1 + (varmac_stsr * OSI_NSEC_PER_SEC);
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}
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}
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return ns;
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}
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nveu32_t mgbe_is_mac_enabled(void *addr)
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{
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nveu32_t enable = OSI_DISABLE;
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nveu32_t reg;
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reg = osi_readl((nveu8_t *)addr + MGBE_MAC_TX);
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if ((reg & (MGBE_MCR_TE)) == MGBE_MCR_TE) {
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enable = OSI_ENABLE;
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}
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return enable;
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}
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