/*
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* Copyright 2008-2015 Freescale Semiconductor Inc.
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* Copyright 2020 NXP
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Freescale Semiconductor nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/fsl/guts.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/of_platform.h>
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#include <linux/clk.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include <linux/interrupt.h>
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#include <linux/libfdt_env.h>
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#include "fman.h"
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#include "fman_muram.h"
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#include "fman_keygen.h"
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/* General defines */
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#define FMAN_LIODN_TBL 64 /* size of LIODN table */
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#define MAX_NUM_OF_MACS 10
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#define FM_NUM_OF_FMAN_CTRL_EVENT_REGS 4
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#define BASE_RX_PORTID 0x08
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#define BASE_TX_PORTID 0x28
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/* Modules registers offsets */
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#define BMI_OFFSET 0x00080000
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#define QMI_OFFSET 0x00080400
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#define KG_OFFSET 0x000C1000
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#define DMA_OFFSET 0x000C2000
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#define FPM_OFFSET 0x000C3000
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#define IMEM_OFFSET 0x000C4000
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#define HWP_OFFSET 0x000C7000
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#define CGP_OFFSET 0x000DB000
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/* Exceptions bit map */
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#define EX_DMA_BUS_ERROR 0x80000000
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#define EX_DMA_READ_ECC 0x40000000
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#define EX_DMA_SYSTEM_WRITE_ECC 0x20000000
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#define EX_DMA_FM_WRITE_ECC 0x10000000
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#define EX_FPM_STALL_ON_TASKS 0x08000000
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#define EX_FPM_SINGLE_ECC 0x04000000
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#define EX_FPM_DOUBLE_ECC 0x02000000
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#define EX_QMI_SINGLE_ECC 0x01000000
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#define EX_QMI_DEQ_FROM_UNKNOWN_PORTID 0x00800000
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#define EX_QMI_DOUBLE_ECC 0x00400000
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#define EX_BMI_LIST_RAM_ECC 0x00200000
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#define EX_BMI_STORAGE_PROFILE_ECC 0x00100000
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#define EX_BMI_STATISTICS_RAM_ECC 0x00080000
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#define EX_IRAM_ECC 0x00040000
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#define EX_MURAM_ECC 0x00020000
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#define EX_BMI_DISPATCH_RAM_ECC 0x00010000
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#define EX_DMA_SINGLE_PORT_ECC 0x00008000
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/* DMA defines */
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/* masks */
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#define DMA_MODE_BER 0x00200000
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#define DMA_MODE_ECC 0x00000020
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#define DMA_MODE_SECURE_PROT 0x00000800
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#define DMA_MODE_AXI_DBG_MASK 0x0F000000
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#define DMA_TRANSFER_PORTID_MASK 0xFF000000
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#define DMA_TRANSFER_TNUM_MASK 0x00FF0000
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#define DMA_TRANSFER_LIODN_MASK 0x00000FFF
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#define DMA_STATUS_BUS_ERR 0x08000000
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#define DMA_STATUS_READ_ECC 0x04000000
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#define DMA_STATUS_SYSTEM_WRITE_ECC 0x02000000
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#define DMA_STATUS_FM_WRITE_ECC 0x01000000
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#define DMA_STATUS_FM_SPDAT_ECC 0x00080000
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#define DMA_MODE_CACHE_OR_SHIFT 30
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#define DMA_MODE_AXI_DBG_SHIFT 24
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#define DMA_MODE_CEN_SHIFT 13
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#define DMA_MODE_CEN_MASK 0x00000007
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#define DMA_MODE_DBG_SHIFT 7
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#define DMA_MODE_AID_MODE_SHIFT 4
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#define DMA_THRESH_COMMQ_SHIFT 24
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#define DMA_THRESH_READ_INT_BUF_SHIFT 16
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#define DMA_THRESH_READ_INT_BUF_MASK 0x0000003f
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#define DMA_THRESH_WRITE_INT_BUF_MASK 0x0000003f
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#define DMA_TRANSFER_PORTID_SHIFT 24
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#define DMA_TRANSFER_TNUM_SHIFT 16
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#define DMA_CAM_SIZEOF_ENTRY 0x40
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#define DMA_CAM_UNITS 8
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#define DMA_LIODN_SHIFT 16
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#define DMA_LIODN_BASE_MASK 0x00000FFF
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/* FPM defines */
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#define FPM_EV_MASK_DOUBLE_ECC 0x80000000
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#define FPM_EV_MASK_STALL 0x40000000
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#define FPM_EV_MASK_SINGLE_ECC 0x20000000
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#define FPM_EV_MASK_RELEASE_FM 0x00010000
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#define FPM_EV_MASK_DOUBLE_ECC_EN 0x00008000
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#define FPM_EV_MASK_STALL_EN 0x00004000
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#define FPM_EV_MASK_SINGLE_ECC_EN 0x00002000
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#define FPM_EV_MASK_EXTERNAL_HALT 0x00000008
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#define FPM_EV_MASK_ECC_ERR_HALT 0x00000004
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#define FPM_RAM_MURAM_ECC 0x00008000
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#define FPM_RAM_IRAM_ECC 0x00004000
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#define FPM_IRAM_ECC_ERR_EX_EN 0x00020000
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#define FPM_MURAM_ECC_ERR_EX_EN 0x00040000
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#define FPM_RAM_IRAM_ECC_EN 0x40000000
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#define FPM_RAM_RAMS_ECC_EN 0x80000000
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#define FPM_RAM_RAMS_ECC_EN_SRC_SEL 0x08000000
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#define FPM_REV1_MAJOR_MASK 0x0000FF00
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#define FPM_REV1_MINOR_MASK 0x000000FF
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#define FPM_DISP_LIMIT_SHIFT 24
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#define FPM_PRT_FM_CTL1 0x00000001
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#define FPM_PRT_FM_CTL2 0x00000002
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#define FPM_PORT_FM_CTL_PORTID_SHIFT 24
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#define FPM_PRC_ORA_FM_CTL_SEL_SHIFT 16
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#define FPM_THR1_PRS_SHIFT 24
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#define FPM_THR1_KG_SHIFT 16
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#define FPM_THR1_PLCR_SHIFT 8
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#define FPM_THR1_BMI_SHIFT 0
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#define FPM_THR2_QMI_ENQ_SHIFT 24
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#define FPM_THR2_QMI_DEQ_SHIFT 0
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#define FPM_THR2_FM_CTL1_SHIFT 16
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#define FPM_THR2_FM_CTL2_SHIFT 8
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#define FPM_EV_MASK_CAT_ERR_SHIFT 1
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#define FPM_EV_MASK_DMA_ERR_SHIFT 0
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#define FPM_REV1_MAJOR_SHIFT 8
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#define FPM_RSTC_FM_RESET 0x80000000
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#define FPM_RSTC_MAC0_RESET 0x40000000
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#define FPM_RSTC_MAC1_RESET 0x20000000
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#define FPM_RSTC_MAC2_RESET 0x10000000
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#define FPM_RSTC_MAC3_RESET 0x08000000
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#define FPM_RSTC_MAC8_RESET 0x04000000
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#define FPM_RSTC_MAC4_RESET 0x02000000
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#define FPM_RSTC_MAC5_RESET 0x01000000
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#define FPM_RSTC_MAC6_RESET 0x00800000
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#define FPM_RSTC_MAC7_RESET 0x00400000
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#define FPM_RSTC_MAC9_RESET 0x00200000
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#define FPM_TS_INT_SHIFT 16
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#define FPM_TS_CTL_EN 0x80000000
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/* BMI defines */
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#define BMI_INIT_START 0x80000000
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#define BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC 0x80000000
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#define BMI_ERR_INTR_EN_LIST_RAM_ECC 0x40000000
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#define BMI_ERR_INTR_EN_STATISTICS_RAM_ECC 0x20000000
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#define BMI_ERR_INTR_EN_DISPATCH_RAM_ECC 0x10000000
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#define BMI_NUM_OF_TASKS_MASK 0x3F000000
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#define BMI_NUM_OF_EXTRA_TASKS_MASK 0x000F0000
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#define BMI_NUM_OF_DMAS_MASK 0x00000F00
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#define BMI_NUM_OF_EXTRA_DMAS_MASK 0x0000000F
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#define BMI_FIFO_SIZE_MASK 0x000003FF
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#define BMI_EXTRA_FIFO_SIZE_MASK 0x03FF0000
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#define BMI_CFG2_DMAS_MASK 0x0000003F
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#define BMI_CFG2_TASKS_MASK 0x0000003F
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#define BMI_CFG2_TASKS_SHIFT 16
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#define BMI_CFG2_DMAS_SHIFT 0
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#define BMI_CFG1_FIFO_SIZE_SHIFT 16
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#define BMI_NUM_OF_TASKS_SHIFT 24
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#define BMI_EXTRA_NUM_OF_TASKS_SHIFT 16
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#define BMI_NUM_OF_DMAS_SHIFT 8
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#define BMI_EXTRA_NUM_OF_DMAS_SHIFT 0
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#define BMI_FIFO_ALIGN 0x100
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#define BMI_EXTRA_FIFO_SIZE_SHIFT 16
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/* QMI defines */
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#define QMI_CFG_ENQ_EN 0x80000000
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#define QMI_CFG_DEQ_EN 0x40000000
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#define QMI_CFG_EN_COUNTERS 0x10000000
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#define QMI_CFG_DEQ_MASK 0x0000003F
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#define QMI_CFG_ENQ_MASK 0x00003F00
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#define QMI_CFG_ENQ_SHIFT 8
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#define QMI_ERR_INTR_EN_DOUBLE_ECC 0x80000000
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#define QMI_ERR_INTR_EN_DEQ_FROM_DEF 0x40000000
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#define QMI_INTR_EN_SINGLE_ECC 0x80000000
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#define QMI_GS_HALT_NOT_BUSY 0x00000002
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/* HWP defines */
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#define HWP_RPIMAC_PEN 0x00000001
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/* IRAM defines */
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#define IRAM_IADD_AIE 0x80000000
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#define IRAM_READY 0x80000000
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/* Default values */
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#define DEFAULT_CATASTROPHIC_ERR 0
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#define DEFAULT_DMA_ERR 0
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#define DEFAULT_AID_MODE FMAN_DMA_AID_OUT_TNUM
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#define DEFAULT_DMA_COMM_Q_LOW 0x2A
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#define DEFAULT_DMA_COMM_Q_HIGH 0x3F
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#define DEFAULT_CACHE_OVERRIDE 0
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#define DEFAULT_DMA_CAM_NUM_OF_ENTRIES 64
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#define DEFAULT_DMA_DBG_CNT_MODE 0
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#define DEFAULT_DMA_SOS_EMERGENCY 0
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#define DEFAULT_DMA_WATCHDOG 0
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#define DEFAULT_DISP_LIMIT 0
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#define DEFAULT_PRS_DISP_TH 16
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#define DEFAULT_PLCR_DISP_TH 16
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#define DEFAULT_KG_DISP_TH 16
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#define DEFAULT_BMI_DISP_TH 16
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#define DEFAULT_QMI_ENQ_DISP_TH 16
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#define DEFAULT_QMI_DEQ_DISP_TH 16
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#define DEFAULT_FM_CTL1_DISP_TH 16
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#define DEFAULT_FM_CTL2_DISP_TH 16
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#define DFLT_AXI_DBG_NUM_OF_BEATS 1
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#define DFLT_DMA_READ_INT_BUF_LOW(dma_thresh_max_buf) \
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((dma_thresh_max_buf + 1) / 2)
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#define DFLT_DMA_READ_INT_BUF_HIGH(dma_thresh_max_buf) \
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((dma_thresh_max_buf + 1) * 3 / 4)
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#define DFLT_DMA_WRITE_INT_BUF_LOW(dma_thresh_max_buf) \
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((dma_thresh_max_buf + 1) / 2)
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#define DFLT_DMA_WRITE_INT_BUF_HIGH(dma_thresh_max_buf)\
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((dma_thresh_max_buf + 1) * 3 / 4)
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#define DMA_COMM_Q_LOW_FMAN_V3 0x2A
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#define DMA_COMM_Q_LOW_FMAN_V2(dma_thresh_max_commq) \
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((dma_thresh_max_commq + 1) / 2)
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#define DFLT_DMA_COMM_Q_LOW(major, dma_thresh_max_commq) \
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((major == 6) ? DMA_COMM_Q_LOW_FMAN_V3 : \
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DMA_COMM_Q_LOW_FMAN_V2(dma_thresh_max_commq))
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#define DMA_COMM_Q_HIGH_FMAN_V3 0x3f
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#define DMA_COMM_Q_HIGH_FMAN_V2(dma_thresh_max_commq) \
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((dma_thresh_max_commq + 1) * 3 / 4)
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#define DFLT_DMA_COMM_Q_HIGH(major, dma_thresh_max_commq) \
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((major == 6) ? DMA_COMM_Q_HIGH_FMAN_V3 : \
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DMA_COMM_Q_HIGH_FMAN_V2(dma_thresh_max_commq))
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#define TOTAL_NUM_OF_TASKS_FMAN_V3L 59
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#define TOTAL_NUM_OF_TASKS_FMAN_V3H 124
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#define DFLT_TOTAL_NUM_OF_TASKS(major, minor, bmi_max_num_of_tasks) \
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((major == 6) ? ((minor == 1 || minor == 4) ? \
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TOTAL_NUM_OF_TASKS_FMAN_V3L : TOTAL_NUM_OF_TASKS_FMAN_V3H) : \
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bmi_max_num_of_tasks)
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#define DMA_CAM_NUM_OF_ENTRIES_FMAN_V3 64
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#define DMA_CAM_NUM_OF_ENTRIES_FMAN_V2 32
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#define DFLT_DMA_CAM_NUM_OF_ENTRIES(major) \
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(major == 6 ? DMA_CAM_NUM_OF_ENTRIES_FMAN_V3 : \
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DMA_CAM_NUM_OF_ENTRIES_FMAN_V2)
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#define FM_TIMESTAMP_1_USEC_BIT 8
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/* Defines used for enabling/disabling FMan interrupts */
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#define ERR_INTR_EN_DMA 0x00010000
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#define ERR_INTR_EN_FPM 0x80000000
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#define ERR_INTR_EN_BMI 0x00800000
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#define ERR_INTR_EN_QMI 0x00400000
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#define ERR_INTR_EN_MURAM 0x00040000
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#define ERR_INTR_EN_MAC0 0x00004000
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#define ERR_INTR_EN_MAC1 0x00002000
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#define ERR_INTR_EN_MAC2 0x00001000
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#define ERR_INTR_EN_MAC3 0x00000800
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#define ERR_INTR_EN_MAC4 0x00000400
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#define ERR_INTR_EN_MAC5 0x00000200
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#define ERR_INTR_EN_MAC6 0x00000100
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#define ERR_INTR_EN_MAC7 0x00000080
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#define ERR_INTR_EN_MAC8 0x00008000
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#define ERR_INTR_EN_MAC9 0x00000040
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#define INTR_EN_QMI 0x40000000
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#define INTR_EN_MAC0 0x00080000
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#define INTR_EN_MAC1 0x00040000
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#define INTR_EN_MAC2 0x00020000
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#define INTR_EN_MAC3 0x00010000
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#define INTR_EN_MAC4 0x00000040
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#define INTR_EN_MAC5 0x00000020
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#define INTR_EN_MAC6 0x00000008
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#define INTR_EN_MAC7 0x00000002
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#define INTR_EN_MAC8 0x00200000
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#define INTR_EN_MAC9 0x00100000
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#define INTR_EN_REV0 0x00008000
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#define INTR_EN_REV1 0x00004000
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#define INTR_EN_REV2 0x00002000
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#define INTR_EN_REV3 0x00001000
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#define INTR_EN_TMR 0x01000000
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enum fman_dma_aid_mode {
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FMAN_DMA_AID_OUT_PORT_ID = 0, /* 4 LSB of PORT_ID */
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FMAN_DMA_AID_OUT_TNUM /* 4 LSB of TNUM */
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};
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struct fman_iram_regs {
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u32 iadd; /* FM IRAM instruction address register */
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u32 idata; /* FM IRAM instruction data register */
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u32 itcfg; /* FM IRAM timing config register */
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u32 iready; /* FM IRAM ready register */
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};
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struct fman_fpm_regs {
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u32 fmfp_tnc; /* FPM TNUM Control 0x00 */
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u32 fmfp_prc; /* FPM Port_ID FmCtl Association 0x04 */
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u32 fmfp_brkc; /* FPM Breakpoint Control 0x08 */
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u32 fmfp_mxd; /* FPM Flush Control 0x0c */
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u32 fmfp_dist1; /* FPM Dispatch Thresholds1 0x10 */
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u32 fmfp_dist2; /* FPM Dispatch Thresholds2 0x14 */
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u32 fm_epi; /* FM Error Pending Interrupts 0x18 */
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u32 fm_rie; /* FM Error Interrupt Enable 0x1c */
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u32 fmfp_fcev[4]; /* FPM FMan-Controller Event 1-4 0x20-0x2f */
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u32 res0030[4]; /* res 0x30 - 0x3f */
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u32 fmfp_cee[4]; /* PM FMan-Controller Event 1-4 0x40-0x4f */
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u32 res0050[4]; /* res 0x50-0x5f */
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u32 fmfp_tsc1; /* FPM TimeStamp Control1 0x60 */
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u32 fmfp_tsc2; /* FPM TimeStamp Control2 0x64 */
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u32 fmfp_tsp; /* FPM Time Stamp 0x68 */
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u32 fmfp_tsf; /* FPM Time Stamp Fraction 0x6c */
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u32 fm_rcr; /* FM Rams Control 0x70 */
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u32 fmfp_extc; /* FPM External Requests Control 0x74 */
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u32 fmfp_ext1; /* FPM External Requests Config1 0x78 */
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u32 fmfp_ext2; /* FPM External Requests Config2 0x7c */
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u32 fmfp_drd[16]; /* FPM Data_Ram Data 0-15 0x80 - 0xbf */
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u32 fmfp_dra; /* FPM Data Ram Access 0xc0 */
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u32 fm_ip_rev_1; /* FM IP Block Revision 1 0xc4 */
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u32 fm_ip_rev_2; /* FM IP Block Revision 2 0xc8 */
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u32 fm_rstc; /* FM Reset Command 0xcc */
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u32 fm_cld; /* FM Classifier Debug 0xd0 */
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u32 fm_npi; /* FM Normal Pending Interrupts 0xd4 */
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u32 fmfp_exte; /* FPM External Requests Enable 0xd8 */
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u32 fmfp_ee; /* FPM Event&Mask 0xdc */
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u32 fmfp_cev[4]; /* FPM CPU Event 1-4 0xe0-0xef */
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u32 res00f0[4]; /* res 0xf0-0xff */
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u32 fmfp_ps[50]; /* FPM Port Status 0x100-0x1c7 */
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u32 res01c8[14]; /* res 0x1c8-0x1ff */
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u32 fmfp_clfabc; /* FPM CLFABC 0x200 */
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u32 fmfp_clfcc; /* FPM CLFCC 0x204 */
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u32 fmfp_clfaval; /* FPM CLFAVAL 0x208 */
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u32 fmfp_clfbval; /* FPM CLFBVAL 0x20c */
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u32 fmfp_clfcval; /* FPM CLFCVAL 0x210 */
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u32 fmfp_clfamsk; /* FPM CLFAMSK 0x214 */
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u32 fmfp_clfbmsk; /* FPM CLFBMSK 0x218 */
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u32 fmfp_clfcmsk; /* FPM CLFCMSK 0x21c */
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u32 fmfp_clfamc; /* FPM CLFAMC 0x220 */
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u32 fmfp_clfbmc; /* FPM CLFBMC 0x224 */
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u32 fmfp_clfcmc; /* FPM CLFCMC 0x228 */
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u32 fmfp_decceh; /* FPM DECCEH 0x22c */
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u32 res0230[116]; /* res 0x230 - 0x3ff */
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u32 fmfp_ts[128]; /* 0x400: FPM Task Status 0x400 - 0x5ff */
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u32 res0600[0x400 - 384];
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};
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struct fman_bmi_regs {
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u32 fmbm_init; /* BMI Initialization 0x00 */
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u32 fmbm_cfg1; /* BMI Configuration 1 0x04 */
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u32 fmbm_cfg2; /* BMI Configuration 2 0x08 */
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u32 res000c[5]; /* 0x0c - 0x1f */
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u32 fmbm_ievr; /* Interrupt Event Register 0x20 */
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u32 fmbm_ier; /* Interrupt Enable Register 0x24 */
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u32 fmbm_ifr; /* Interrupt Force Register 0x28 */
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u32 res002c[5]; /* 0x2c - 0x3f */
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u32 fmbm_arb[8]; /* BMI Arbitration 0x40 - 0x5f */
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u32 res0060[12]; /* 0x60 - 0x8f */
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u32 fmbm_dtc[3]; /* Debug Trap Counter 0x90 - 0x9b */
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u32 res009c; /* 0x9c */
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u32 fmbm_dcv[3][4]; /* Debug Compare val 0xa0-0xcf */
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u32 fmbm_dcm[3][4]; /* Debug Compare Mask 0xd0-0xff */
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u32 fmbm_gde; /* BMI Global Debug Enable 0x100 */
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u32 fmbm_pp[63]; /* BMI Port Parameters 0x104 - 0x1ff */
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u32 res0200; /* 0x200 */
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u32 fmbm_pfs[63]; /* BMI Port FIFO Size 0x204 - 0x2ff */
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u32 res0300; /* 0x300 */
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u32 fmbm_spliodn[63]; /* Port Partition ID 0x304 - 0x3ff */
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};
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struct fman_qmi_regs {
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u32 fmqm_gc; /* General Configuration Register 0x00 */
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u32 res0004; /* 0x04 */
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u32 fmqm_eie; /* Error Interrupt Event Register 0x08 */
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u32 fmqm_eien; /* Error Interrupt Enable Register 0x0c */
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u32 fmqm_eif; /* Error Interrupt Force Register 0x10 */
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u32 fmqm_ie; /* Interrupt Event Register 0x14 */
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u32 fmqm_ien; /* Interrupt Enable Register 0x18 */
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u32 fmqm_if; /* Interrupt Force Register 0x1c */
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u32 fmqm_gs; /* Global Status Register 0x20 */
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u32 fmqm_ts; /* Task Status Register 0x24 */
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u32 fmqm_etfc; /* Enqueue Total Frame Counter 0x28 */
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u32 fmqm_dtfc; /* Dequeue Total Frame Counter 0x2c */
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u32 fmqm_dc0; /* Dequeue Counter 0 0x30 */
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u32 fmqm_dc1; /* Dequeue Counter 1 0x34 */
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u32 fmqm_dc2; /* Dequeue Counter 2 0x38 */
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u32 fmqm_dc3; /* Dequeue Counter 3 0x3c */
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u32 fmqm_dfdc; /* Dequeue FQID from Default Counter 0x40 */
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u32 fmqm_dfcc; /* Dequeue FQID from Context Counter 0x44 */
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u32 fmqm_dffc; /* Dequeue FQID from FD Counter 0x48 */
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u32 fmqm_dcc; /* Dequeue Confirm Counter 0x4c */
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u32 res0050[7]; /* 0x50 - 0x6b */
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u32 fmqm_tapc; /* Tnum Aging Period Control 0x6c */
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u32 fmqm_dmcvc; /* Dequeue MAC Command Valid Counter 0x70 */
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u32 fmqm_difdcc; /* Dequeue Invalid FD Command Counter 0x74 */
|
u32 fmqm_da1v; /* Dequeue A1 Valid Counter 0x78 */
|
u32 res007c; /* 0x7c */
|
u32 fmqm_dtc; /* 0x80 Debug Trap Counter 0x80 */
|
u32 fmqm_efddd; /* 0x84 Enqueue Frame desc Dynamic dbg 0x84 */
|
u32 res0088[2]; /* 0x88 - 0x8f */
|
struct {
|
u32 fmqm_dtcfg1; /* 0x90 dbg trap cfg 1 Register 0x00 */
|
u32 fmqm_dtval1; /* Debug Trap Value 1 Register 0x04 */
|
u32 fmqm_dtm1; /* Debug Trap Mask 1 Register 0x08 */
|
u32 fmqm_dtc1; /* Debug Trap Counter 1 Register 0x0c */
|
u32 fmqm_dtcfg2; /* dbg Trap cfg 2 Register 0x10 */
|
u32 fmqm_dtval2; /* Debug Trap Value 2 Register 0x14 */
|
u32 fmqm_dtm2; /* Debug Trap Mask 2 Register 0x18 */
|
u32 res001c; /* 0x1c */
|
} dbg_traps[3]; /* 0x90 - 0xef */
|
u8 res00f0[0x400 - 0xf0]; /* 0xf0 - 0x3ff */
|
};
|
|
struct fman_dma_regs {
|
u32 fmdmsr; /* FM DMA status register 0x00 */
|
u32 fmdmmr; /* FM DMA mode register 0x04 */
|
u32 fmdmtr; /* FM DMA bus threshold register 0x08 */
|
u32 fmdmhy; /* FM DMA bus hysteresis register 0x0c */
|
u32 fmdmsetr; /* FM DMA SOS emergency Threshold Register 0x10 */
|
u32 fmdmtah; /* FM DMA transfer bus address high reg 0x14 */
|
u32 fmdmtal; /* FM DMA transfer bus address low reg 0x18 */
|
u32 fmdmtcid; /* FM DMA transfer bus communication ID reg 0x1c */
|
u32 fmdmra; /* FM DMA bus internal ram address register 0x20 */
|
u32 fmdmrd; /* FM DMA bus internal ram data register 0x24 */
|
u32 fmdmwcr; /* FM DMA CAM watchdog counter value 0x28 */
|
u32 fmdmebcr; /* FM DMA CAM base in MURAM register 0x2c */
|
u32 fmdmccqdr; /* FM DMA CAM and CMD Queue Debug reg 0x30 */
|
u32 fmdmccqvr1; /* FM DMA CAM and CMD Queue Value reg #1 0x34 */
|
u32 fmdmccqvr2; /* FM DMA CAM and CMD Queue Value reg #2 0x38 */
|
u32 fmdmcqvr3; /* FM DMA CMD Queue Value register #3 0x3c */
|
u32 fmdmcqvr4; /* FM DMA CMD Queue Value register #4 0x40 */
|
u32 fmdmcqvr5; /* FM DMA CMD Queue Value register #5 0x44 */
|
u32 fmdmsefrc; /* FM DMA Semaphore Entry Full Reject Cntr 0x48 */
|
u32 fmdmsqfrc; /* FM DMA Semaphore Queue Full Reject Cntr 0x4c */
|
u32 fmdmssrc; /* FM DMA Semaphore SYNC Reject Counter 0x50 */
|
u32 fmdmdcr; /* FM DMA Debug Counter 0x54 */
|
u32 fmdmemsr; /* FM DMA Emergency Smoother Register 0x58 */
|
u32 res005c; /* 0x5c */
|
u32 fmdmplr[FMAN_LIODN_TBL / 2]; /* DMA LIODN regs 0x60-0xdf */
|
u32 res00e0[0x400 - 56];
|
};
|
|
struct fman_hwp_regs {
|
u32 res0000[0x844 / 4]; /* 0x000..0x843 */
|
u32 fmprrpimac; /* FM Parser Internal memory access control */
|
u32 res[(0x1000 - 0x848) / 4]; /* 0x848..0xFFF */
|
};
|
|
/* Structure that holds current FMan state.
|
* Used for saving run time information.
|
*/
|
struct fman_state_struct {
|
u8 fm_id;
|
u16 fm_clk_freq;
|
struct fman_rev_info rev_info;
|
bool enabled_time_stamp;
|
u8 count1_micro_bit;
|
u8 total_num_of_tasks;
|
u8 accumulated_num_of_tasks;
|
u32 accumulated_fifo_size;
|
u8 accumulated_num_of_open_dmas;
|
u8 accumulated_num_of_deq_tnums;
|
u32 exceptions;
|
u32 extra_fifo_pool_size;
|
u8 extra_tasks_pool_size;
|
u8 extra_open_dmas_pool_size;
|
u16 port_mfl[MAX_NUM_OF_MACS];
|
u16 mac_mfl[MAX_NUM_OF_MACS];
|
|
/* SOC specific */
|
u32 fm_iram_size;
|
/* DMA */
|
u32 dma_thresh_max_commq;
|
u32 dma_thresh_max_buf;
|
u32 max_num_of_open_dmas;
|
/* QMI */
|
u32 qmi_max_num_of_tnums;
|
u32 qmi_def_tnums_thresh;
|
/* BMI */
|
u32 bmi_max_num_of_tasks;
|
u32 bmi_max_fifo_size;
|
/* General */
|
u32 fm_port_num_of_cg;
|
u32 num_of_rx_ports;
|
u32 total_fifo_size;
|
|
u32 qman_channel_base;
|
u32 num_of_qman_channels;
|
|
struct resource *res;
|
};
|
|
/* Structure that holds FMan initial configuration */
|
struct fman_cfg {
|
u8 disp_limit_tsh;
|
u8 prs_disp_tsh;
|
u8 plcr_disp_tsh;
|
u8 kg_disp_tsh;
|
u8 bmi_disp_tsh;
|
u8 qmi_enq_disp_tsh;
|
u8 qmi_deq_disp_tsh;
|
u8 fm_ctl1_disp_tsh;
|
u8 fm_ctl2_disp_tsh;
|
int dma_cache_override;
|
enum fman_dma_aid_mode dma_aid_mode;
|
u32 dma_axi_dbg_num_of_beats;
|
u32 dma_cam_num_of_entries;
|
u32 dma_watchdog;
|
u8 dma_comm_qtsh_asrt_emer;
|
u32 dma_write_buf_tsh_asrt_emer;
|
u32 dma_read_buf_tsh_asrt_emer;
|
u8 dma_comm_qtsh_clr_emer;
|
u32 dma_write_buf_tsh_clr_emer;
|
u32 dma_read_buf_tsh_clr_emer;
|
u32 dma_sos_emergency;
|
int dma_dbg_cnt_mode;
|
int catastrophic_err;
|
int dma_err;
|
u32 exceptions;
|
u16 clk_freq;
|
u32 cam_base_addr;
|
u32 fifo_base_addr;
|
u32 total_fifo_size;
|
u32 total_num_of_tasks;
|
u32 qmi_def_tnums_thresh;
|
};
|
|
#ifdef CONFIG_DPAA_ERRATUM_A050385
|
static bool fman_has_err_a050385;
|
#endif
|
|
static irqreturn_t fman_exceptions(struct fman *fman,
|
enum fman_exceptions exception)
|
{
|
dev_dbg(fman->dev, "%s: FMan[%d] exception %d\n",
|
__func__, fman->state->fm_id, exception);
|
|
return IRQ_HANDLED;
|
}
|
|
static irqreturn_t fman_bus_error(struct fman *fman, u8 __maybe_unused port_id,
|
u64 __maybe_unused addr,
|
u8 __maybe_unused tnum,
|
u16 __maybe_unused liodn)
|
{
|
dev_dbg(fman->dev, "%s: FMan[%d] bus error: port_id[%d]\n",
|
__func__, fman->state->fm_id, port_id);
|
|
return IRQ_HANDLED;
|
}
|
|
static inline irqreturn_t call_mac_isr(struct fman *fman, u8 id)
|
{
|
if (fman->intr_mng[id].isr_cb) {
|
fman->intr_mng[id].isr_cb(fman->intr_mng[id].src_handle);
|
|
return IRQ_HANDLED;
|
}
|
|
return IRQ_NONE;
|
}
|
|
static inline u8 hw_port_id_to_sw_port_id(u8 major, u8 hw_port_id)
|
{
|
u8 sw_port_id = 0;
|
|
if (hw_port_id >= BASE_TX_PORTID)
|
sw_port_id = hw_port_id - BASE_TX_PORTID;
|
else if (hw_port_id >= BASE_RX_PORTID)
|
sw_port_id = hw_port_id - BASE_RX_PORTID;
|
else
|
sw_port_id = 0;
|
|
return sw_port_id;
|
}
|
|
static void set_port_order_restoration(struct fman_fpm_regs __iomem *fpm_rg,
|
u8 port_id)
|
{
|
u32 tmp = 0;
|
|
tmp = port_id << FPM_PORT_FM_CTL_PORTID_SHIFT;
|
|
tmp |= FPM_PRT_FM_CTL2 | FPM_PRT_FM_CTL1;
|
|
/* order restoration */
|
if (port_id % 2)
|
tmp |= FPM_PRT_FM_CTL1 << FPM_PRC_ORA_FM_CTL_SEL_SHIFT;
|
else
|
tmp |= FPM_PRT_FM_CTL2 << FPM_PRC_ORA_FM_CTL_SEL_SHIFT;
|
|
iowrite32be(tmp, &fpm_rg->fmfp_prc);
|
}
|
|
static void set_port_liodn(struct fman *fman, u8 port_id,
|
u32 liodn_base, u32 liodn_ofst)
|
{
|
u32 tmp;
|
|
iowrite32be(liodn_ofst, &fman->bmi_regs->fmbm_spliodn[port_id - 1]);
|
if (!IS_ENABLED(CONFIG_FSL_PAMU))
|
return;
|
/* set LIODN base for this port */
|
tmp = ioread32be(&fman->dma_regs->fmdmplr[port_id / 2]);
|
if (port_id % 2) {
|
tmp &= ~DMA_LIODN_BASE_MASK;
|
tmp |= liodn_base;
|
} else {
|
tmp &= ~(DMA_LIODN_BASE_MASK << DMA_LIODN_SHIFT);
|
tmp |= liodn_base << DMA_LIODN_SHIFT;
|
}
|
iowrite32be(tmp, &fman->dma_regs->fmdmplr[port_id / 2]);
|
}
|
|
static void enable_rams_ecc(struct fman_fpm_regs __iomem *fpm_rg)
|
{
|
u32 tmp;
|
|
tmp = ioread32be(&fpm_rg->fm_rcr);
|
if (tmp & FPM_RAM_RAMS_ECC_EN_SRC_SEL)
|
iowrite32be(tmp | FPM_RAM_IRAM_ECC_EN, &fpm_rg->fm_rcr);
|
else
|
iowrite32be(tmp | FPM_RAM_RAMS_ECC_EN |
|
FPM_RAM_IRAM_ECC_EN, &fpm_rg->fm_rcr);
|
}
|
|
static void disable_rams_ecc(struct fman_fpm_regs __iomem *fpm_rg)
|
{
|
u32 tmp;
|
|
tmp = ioread32be(&fpm_rg->fm_rcr);
|
if (tmp & FPM_RAM_RAMS_ECC_EN_SRC_SEL)
|
iowrite32be(tmp & ~FPM_RAM_IRAM_ECC_EN, &fpm_rg->fm_rcr);
|
else
|
iowrite32be(tmp & ~(FPM_RAM_RAMS_ECC_EN | FPM_RAM_IRAM_ECC_EN),
|
&fpm_rg->fm_rcr);
|
}
|
|
static void fman_defconfig(struct fman_cfg *cfg)
|
{
|
memset(cfg, 0, sizeof(struct fman_cfg));
|
|
cfg->catastrophic_err = DEFAULT_CATASTROPHIC_ERR;
|
cfg->dma_err = DEFAULT_DMA_ERR;
|
cfg->dma_aid_mode = DEFAULT_AID_MODE;
|
cfg->dma_comm_qtsh_clr_emer = DEFAULT_DMA_COMM_Q_LOW;
|
cfg->dma_comm_qtsh_asrt_emer = DEFAULT_DMA_COMM_Q_HIGH;
|
cfg->dma_cache_override = DEFAULT_CACHE_OVERRIDE;
|
cfg->dma_cam_num_of_entries = DEFAULT_DMA_CAM_NUM_OF_ENTRIES;
|
cfg->dma_dbg_cnt_mode = DEFAULT_DMA_DBG_CNT_MODE;
|
cfg->dma_sos_emergency = DEFAULT_DMA_SOS_EMERGENCY;
|
cfg->dma_watchdog = DEFAULT_DMA_WATCHDOG;
|
cfg->disp_limit_tsh = DEFAULT_DISP_LIMIT;
|
cfg->prs_disp_tsh = DEFAULT_PRS_DISP_TH;
|
cfg->plcr_disp_tsh = DEFAULT_PLCR_DISP_TH;
|
cfg->kg_disp_tsh = DEFAULT_KG_DISP_TH;
|
cfg->bmi_disp_tsh = DEFAULT_BMI_DISP_TH;
|
cfg->qmi_enq_disp_tsh = DEFAULT_QMI_ENQ_DISP_TH;
|
cfg->qmi_deq_disp_tsh = DEFAULT_QMI_DEQ_DISP_TH;
|
cfg->fm_ctl1_disp_tsh = DEFAULT_FM_CTL1_DISP_TH;
|
cfg->fm_ctl2_disp_tsh = DEFAULT_FM_CTL2_DISP_TH;
|
}
|
|
static int dma_init(struct fman *fman)
|
{
|
struct fman_dma_regs __iomem *dma_rg = fman->dma_regs;
|
struct fman_cfg *cfg = fman->cfg;
|
u32 tmp_reg;
|
|
/* Init DMA Registers */
|
|
/* clear status reg events */
|
tmp_reg = (DMA_STATUS_BUS_ERR | DMA_STATUS_READ_ECC |
|
DMA_STATUS_SYSTEM_WRITE_ECC | DMA_STATUS_FM_WRITE_ECC);
|
iowrite32be(ioread32be(&dma_rg->fmdmsr) | tmp_reg, &dma_rg->fmdmsr);
|
|
/* configure mode register */
|
tmp_reg = 0;
|
tmp_reg |= cfg->dma_cache_override << DMA_MODE_CACHE_OR_SHIFT;
|
if (cfg->exceptions & EX_DMA_BUS_ERROR)
|
tmp_reg |= DMA_MODE_BER;
|
if ((cfg->exceptions & EX_DMA_SYSTEM_WRITE_ECC) |
|
(cfg->exceptions & EX_DMA_READ_ECC) |
|
(cfg->exceptions & EX_DMA_FM_WRITE_ECC))
|
tmp_reg |= DMA_MODE_ECC;
|
if (cfg->dma_axi_dbg_num_of_beats)
|
tmp_reg |= (DMA_MODE_AXI_DBG_MASK &
|
((cfg->dma_axi_dbg_num_of_beats - 1)
|
<< DMA_MODE_AXI_DBG_SHIFT));
|
|
tmp_reg |= (((cfg->dma_cam_num_of_entries / DMA_CAM_UNITS) - 1) &
|
DMA_MODE_CEN_MASK) << DMA_MODE_CEN_SHIFT;
|
tmp_reg |= DMA_MODE_SECURE_PROT;
|
tmp_reg |= cfg->dma_dbg_cnt_mode << DMA_MODE_DBG_SHIFT;
|
tmp_reg |= cfg->dma_aid_mode << DMA_MODE_AID_MODE_SHIFT;
|
|
iowrite32be(tmp_reg, &dma_rg->fmdmmr);
|
|
/* configure thresholds register */
|
tmp_reg = ((u32)cfg->dma_comm_qtsh_asrt_emer <<
|
DMA_THRESH_COMMQ_SHIFT);
|
tmp_reg |= (cfg->dma_read_buf_tsh_asrt_emer &
|
DMA_THRESH_READ_INT_BUF_MASK) << DMA_THRESH_READ_INT_BUF_SHIFT;
|
tmp_reg |= cfg->dma_write_buf_tsh_asrt_emer &
|
DMA_THRESH_WRITE_INT_BUF_MASK;
|
|
iowrite32be(tmp_reg, &dma_rg->fmdmtr);
|
|
/* configure hysteresis register */
|
tmp_reg = ((u32)cfg->dma_comm_qtsh_clr_emer <<
|
DMA_THRESH_COMMQ_SHIFT);
|
tmp_reg |= (cfg->dma_read_buf_tsh_clr_emer &
|
DMA_THRESH_READ_INT_BUF_MASK) << DMA_THRESH_READ_INT_BUF_SHIFT;
|
tmp_reg |= cfg->dma_write_buf_tsh_clr_emer &
|
DMA_THRESH_WRITE_INT_BUF_MASK;
|
|
iowrite32be(tmp_reg, &dma_rg->fmdmhy);
|
|
/* configure emergency threshold */
|
iowrite32be(cfg->dma_sos_emergency, &dma_rg->fmdmsetr);
|
|
/* configure Watchdog */
|
iowrite32be((cfg->dma_watchdog * cfg->clk_freq), &dma_rg->fmdmwcr);
|
|
iowrite32be(cfg->cam_base_addr, &dma_rg->fmdmebcr);
|
|
/* Allocate MURAM for CAM */
|
fman->cam_size =
|
(u32)(fman->cfg->dma_cam_num_of_entries * DMA_CAM_SIZEOF_ENTRY);
|
fman->cam_offset = fman_muram_alloc(fman->muram, fman->cam_size);
|
if (IS_ERR_VALUE(fman->cam_offset)) {
|
dev_err(fman->dev, "%s: MURAM alloc for DMA CAM failed\n",
|
__func__);
|
return -ENOMEM;
|
}
|
|
if (fman->state->rev_info.major == 2) {
|
u32 __iomem *cam_base_addr;
|
|
fman_muram_free_mem(fman->muram, fman->cam_offset,
|
fman->cam_size);
|
|
fman->cam_size = fman->cfg->dma_cam_num_of_entries * 72 + 128;
|
fman->cam_offset = fman_muram_alloc(fman->muram,
|
fman->cam_size);
|
if (IS_ERR_VALUE(fman->cam_offset)) {
|
dev_err(fman->dev, "%s: MURAM alloc for DMA CAM failed\n",
|
__func__);
|
return -ENOMEM;
|
}
|
|
if (fman->cfg->dma_cam_num_of_entries % 8 ||
|
fman->cfg->dma_cam_num_of_entries > 32) {
|
dev_err(fman->dev, "%s: wrong dma_cam_num_of_entries\n",
|
__func__);
|
return -EINVAL;
|
}
|
|
cam_base_addr = (u32 __iomem *)
|
fman_muram_offset_to_vbase(fman->muram,
|
fman->cam_offset);
|
iowrite32be(~((1 <<
|
(32 - fman->cfg->dma_cam_num_of_entries)) - 1),
|
cam_base_addr);
|
}
|
|
fman->cfg->cam_base_addr = fman->cam_offset;
|
|
return 0;
|
}
|
|
static void fpm_init(struct fman_fpm_regs __iomem *fpm_rg, struct fman_cfg *cfg)
|
{
|
u32 tmp_reg;
|
int i;
|
|
/* Init FPM Registers */
|
|
tmp_reg = (u32)(cfg->disp_limit_tsh << FPM_DISP_LIMIT_SHIFT);
|
iowrite32be(tmp_reg, &fpm_rg->fmfp_mxd);
|
|
tmp_reg = (((u32)cfg->prs_disp_tsh << FPM_THR1_PRS_SHIFT) |
|
((u32)cfg->kg_disp_tsh << FPM_THR1_KG_SHIFT) |
|
((u32)cfg->plcr_disp_tsh << FPM_THR1_PLCR_SHIFT) |
|
((u32)cfg->bmi_disp_tsh << FPM_THR1_BMI_SHIFT));
|
iowrite32be(tmp_reg, &fpm_rg->fmfp_dist1);
|
|
tmp_reg =
|
(((u32)cfg->qmi_enq_disp_tsh << FPM_THR2_QMI_ENQ_SHIFT) |
|
((u32)cfg->qmi_deq_disp_tsh << FPM_THR2_QMI_DEQ_SHIFT) |
|
((u32)cfg->fm_ctl1_disp_tsh << FPM_THR2_FM_CTL1_SHIFT) |
|
((u32)cfg->fm_ctl2_disp_tsh << FPM_THR2_FM_CTL2_SHIFT));
|
iowrite32be(tmp_reg, &fpm_rg->fmfp_dist2);
|
|
/* define exceptions and error behavior */
|
tmp_reg = 0;
|
/* Clear events */
|
tmp_reg |= (FPM_EV_MASK_STALL | FPM_EV_MASK_DOUBLE_ECC |
|
FPM_EV_MASK_SINGLE_ECC);
|
/* enable interrupts */
|
if (cfg->exceptions & EX_FPM_STALL_ON_TASKS)
|
tmp_reg |= FPM_EV_MASK_STALL_EN;
|
if (cfg->exceptions & EX_FPM_SINGLE_ECC)
|
tmp_reg |= FPM_EV_MASK_SINGLE_ECC_EN;
|
if (cfg->exceptions & EX_FPM_DOUBLE_ECC)
|
tmp_reg |= FPM_EV_MASK_DOUBLE_ECC_EN;
|
tmp_reg |= (cfg->catastrophic_err << FPM_EV_MASK_CAT_ERR_SHIFT);
|
tmp_reg |= (cfg->dma_err << FPM_EV_MASK_DMA_ERR_SHIFT);
|
/* FMan is not halted upon external halt activation */
|
tmp_reg |= FPM_EV_MASK_EXTERNAL_HALT;
|
/* Man is not halted upon Unrecoverable ECC error behavior */
|
tmp_reg |= FPM_EV_MASK_ECC_ERR_HALT;
|
iowrite32be(tmp_reg, &fpm_rg->fmfp_ee);
|
|
/* clear all fmCtls event registers */
|
for (i = 0; i < FM_NUM_OF_FMAN_CTRL_EVENT_REGS; i++)
|
iowrite32be(0xFFFFFFFF, &fpm_rg->fmfp_cev[i]);
|
|
/* RAM ECC - enable and clear events */
|
/* first we need to clear all parser memory,
|
* as it is uninitialized and may cause ECC errors
|
*/
|
/* event bits */
|
tmp_reg = (FPM_RAM_MURAM_ECC | FPM_RAM_IRAM_ECC);
|
|
iowrite32be(tmp_reg, &fpm_rg->fm_rcr);
|
|
tmp_reg = 0;
|
if (cfg->exceptions & EX_IRAM_ECC) {
|
tmp_reg |= FPM_IRAM_ECC_ERR_EX_EN;
|
enable_rams_ecc(fpm_rg);
|
}
|
if (cfg->exceptions & EX_MURAM_ECC) {
|
tmp_reg |= FPM_MURAM_ECC_ERR_EX_EN;
|
enable_rams_ecc(fpm_rg);
|
}
|
iowrite32be(tmp_reg, &fpm_rg->fm_rie);
|
}
|
|
static void bmi_init(struct fman_bmi_regs __iomem *bmi_rg,
|
struct fman_cfg *cfg)
|
{
|
u32 tmp_reg;
|
|
/* Init BMI Registers */
|
|
/* define common resources */
|
tmp_reg = cfg->fifo_base_addr;
|
tmp_reg = tmp_reg / BMI_FIFO_ALIGN;
|
|
tmp_reg |= ((cfg->total_fifo_size / FMAN_BMI_FIFO_UNITS - 1) <<
|
BMI_CFG1_FIFO_SIZE_SHIFT);
|
iowrite32be(tmp_reg, &bmi_rg->fmbm_cfg1);
|
|
tmp_reg = ((cfg->total_num_of_tasks - 1) & BMI_CFG2_TASKS_MASK) <<
|
BMI_CFG2_TASKS_SHIFT;
|
/* num of DMA's will be dynamically updated when each port is set */
|
iowrite32be(tmp_reg, &bmi_rg->fmbm_cfg2);
|
|
/* define unmaskable exceptions, enable and clear events */
|
tmp_reg = 0;
|
iowrite32be(BMI_ERR_INTR_EN_LIST_RAM_ECC |
|
BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC |
|
BMI_ERR_INTR_EN_STATISTICS_RAM_ECC |
|
BMI_ERR_INTR_EN_DISPATCH_RAM_ECC, &bmi_rg->fmbm_ievr);
|
|
if (cfg->exceptions & EX_BMI_LIST_RAM_ECC)
|
tmp_reg |= BMI_ERR_INTR_EN_LIST_RAM_ECC;
|
if (cfg->exceptions & EX_BMI_STORAGE_PROFILE_ECC)
|
tmp_reg |= BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC;
|
if (cfg->exceptions & EX_BMI_STATISTICS_RAM_ECC)
|
tmp_reg |= BMI_ERR_INTR_EN_STATISTICS_RAM_ECC;
|
if (cfg->exceptions & EX_BMI_DISPATCH_RAM_ECC)
|
tmp_reg |= BMI_ERR_INTR_EN_DISPATCH_RAM_ECC;
|
iowrite32be(tmp_reg, &bmi_rg->fmbm_ier);
|
}
|
|
static void qmi_init(struct fman_qmi_regs __iomem *qmi_rg,
|
struct fman_cfg *cfg)
|
{
|
u32 tmp_reg;
|
|
/* Init QMI Registers */
|
|
/* Clear error interrupt events */
|
|
iowrite32be(QMI_ERR_INTR_EN_DOUBLE_ECC | QMI_ERR_INTR_EN_DEQ_FROM_DEF,
|
&qmi_rg->fmqm_eie);
|
tmp_reg = 0;
|
if (cfg->exceptions & EX_QMI_DEQ_FROM_UNKNOWN_PORTID)
|
tmp_reg |= QMI_ERR_INTR_EN_DEQ_FROM_DEF;
|
if (cfg->exceptions & EX_QMI_DOUBLE_ECC)
|
tmp_reg |= QMI_ERR_INTR_EN_DOUBLE_ECC;
|
/* enable events */
|
iowrite32be(tmp_reg, &qmi_rg->fmqm_eien);
|
|
tmp_reg = 0;
|
/* Clear interrupt events */
|
iowrite32be(QMI_INTR_EN_SINGLE_ECC, &qmi_rg->fmqm_ie);
|
if (cfg->exceptions & EX_QMI_SINGLE_ECC)
|
tmp_reg |= QMI_INTR_EN_SINGLE_ECC;
|
/* enable events */
|
iowrite32be(tmp_reg, &qmi_rg->fmqm_ien);
|
}
|
|
static void hwp_init(struct fman_hwp_regs __iomem *hwp_rg)
|
{
|
/* enable HW Parser */
|
iowrite32be(HWP_RPIMAC_PEN, &hwp_rg->fmprrpimac);
|
}
|
|
static int enable(struct fman *fman, struct fman_cfg *cfg)
|
{
|
u32 cfg_reg = 0;
|
|
/* Enable all modules */
|
|
/* clear&enable global counters - calculate reg and save for later,
|
* because it's the same reg for QMI enable
|
*/
|
cfg_reg = QMI_CFG_EN_COUNTERS;
|
|
/* Set enqueue and dequeue thresholds */
|
cfg_reg |= (cfg->qmi_def_tnums_thresh << 8) | cfg->qmi_def_tnums_thresh;
|
|
iowrite32be(BMI_INIT_START, &fman->bmi_regs->fmbm_init);
|
iowrite32be(cfg_reg | QMI_CFG_ENQ_EN | QMI_CFG_DEQ_EN,
|
&fman->qmi_regs->fmqm_gc);
|
|
return 0;
|
}
|
|
static int set_exception(struct fman *fman,
|
enum fman_exceptions exception, bool enable)
|
{
|
u32 tmp;
|
|
switch (exception) {
|
case FMAN_EX_DMA_BUS_ERROR:
|
tmp = ioread32be(&fman->dma_regs->fmdmmr);
|
if (enable)
|
tmp |= DMA_MODE_BER;
|
else
|
tmp &= ~DMA_MODE_BER;
|
/* disable bus error */
|
iowrite32be(tmp, &fman->dma_regs->fmdmmr);
|
break;
|
case FMAN_EX_DMA_READ_ECC:
|
case FMAN_EX_DMA_SYSTEM_WRITE_ECC:
|
case FMAN_EX_DMA_FM_WRITE_ECC:
|
tmp = ioread32be(&fman->dma_regs->fmdmmr);
|
if (enable)
|
tmp |= DMA_MODE_ECC;
|
else
|
tmp &= ~DMA_MODE_ECC;
|
iowrite32be(tmp, &fman->dma_regs->fmdmmr);
|
break;
|
case FMAN_EX_FPM_STALL_ON_TASKS:
|
tmp = ioread32be(&fman->fpm_regs->fmfp_ee);
|
if (enable)
|
tmp |= FPM_EV_MASK_STALL_EN;
|
else
|
tmp &= ~FPM_EV_MASK_STALL_EN;
|
iowrite32be(tmp, &fman->fpm_regs->fmfp_ee);
|
break;
|
case FMAN_EX_FPM_SINGLE_ECC:
|
tmp = ioread32be(&fman->fpm_regs->fmfp_ee);
|
if (enable)
|
tmp |= FPM_EV_MASK_SINGLE_ECC_EN;
|
else
|
tmp &= ~FPM_EV_MASK_SINGLE_ECC_EN;
|
iowrite32be(tmp, &fman->fpm_regs->fmfp_ee);
|
break;
|
case FMAN_EX_FPM_DOUBLE_ECC:
|
tmp = ioread32be(&fman->fpm_regs->fmfp_ee);
|
if (enable)
|
tmp |= FPM_EV_MASK_DOUBLE_ECC_EN;
|
else
|
tmp &= ~FPM_EV_MASK_DOUBLE_ECC_EN;
|
iowrite32be(tmp, &fman->fpm_regs->fmfp_ee);
|
break;
|
case FMAN_EX_QMI_SINGLE_ECC:
|
tmp = ioread32be(&fman->qmi_regs->fmqm_ien);
|
if (enable)
|
tmp |= QMI_INTR_EN_SINGLE_ECC;
|
else
|
tmp &= ~QMI_INTR_EN_SINGLE_ECC;
|
iowrite32be(tmp, &fman->qmi_regs->fmqm_ien);
|
break;
|
case FMAN_EX_QMI_DOUBLE_ECC:
|
tmp = ioread32be(&fman->qmi_regs->fmqm_eien);
|
if (enable)
|
tmp |= QMI_ERR_INTR_EN_DOUBLE_ECC;
|
else
|
tmp &= ~QMI_ERR_INTR_EN_DOUBLE_ECC;
|
iowrite32be(tmp, &fman->qmi_regs->fmqm_eien);
|
break;
|
case FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID:
|
tmp = ioread32be(&fman->qmi_regs->fmqm_eien);
|
if (enable)
|
tmp |= QMI_ERR_INTR_EN_DEQ_FROM_DEF;
|
else
|
tmp &= ~QMI_ERR_INTR_EN_DEQ_FROM_DEF;
|
iowrite32be(tmp, &fman->qmi_regs->fmqm_eien);
|
break;
|
case FMAN_EX_BMI_LIST_RAM_ECC:
|
tmp = ioread32be(&fman->bmi_regs->fmbm_ier);
|
if (enable)
|
tmp |= BMI_ERR_INTR_EN_LIST_RAM_ECC;
|
else
|
tmp &= ~BMI_ERR_INTR_EN_LIST_RAM_ECC;
|
iowrite32be(tmp, &fman->bmi_regs->fmbm_ier);
|
break;
|
case FMAN_EX_BMI_STORAGE_PROFILE_ECC:
|
tmp = ioread32be(&fman->bmi_regs->fmbm_ier);
|
if (enable)
|
tmp |= BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC;
|
else
|
tmp &= ~BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC;
|
iowrite32be(tmp, &fman->bmi_regs->fmbm_ier);
|
break;
|
case FMAN_EX_BMI_STATISTICS_RAM_ECC:
|
tmp = ioread32be(&fman->bmi_regs->fmbm_ier);
|
if (enable)
|
tmp |= BMI_ERR_INTR_EN_STATISTICS_RAM_ECC;
|
else
|
tmp &= ~BMI_ERR_INTR_EN_STATISTICS_RAM_ECC;
|
iowrite32be(tmp, &fman->bmi_regs->fmbm_ier);
|
break;
|
case FMAN_EX_BMI_DISPATCH_RAM_ECC:
|
tmp = ioread32be(&fman->bmi_regs->fmbm_ier);
|
if (enable)
|
tmp |= BMI_ERR_INTR_EN_DISPATCH_RAM_ECC;
|
else
|
tmp &= ~BMI_ERR_INTR_EN_DISPATCH_RAM_ECC;
|
iowrite32be(tmp, &fman->bmi_regs->fmbm_ier);
|
break;
|
case FMAN_EX_IRAM_ECC:
|
tmp = ioread32be(&fman->fpm_regs->fm_rie);
|
if (enable) {
|
/* enable ECC if not enabled */
|
enable_rams_ecc(fman->fpm_regs);
|
/* enable ECC interrupts */
|
tmp |= FPM_IRAM_ECC_ERR_EX_EN;
|
} else {
|
/* ECC mechanism may be disabled,
|
* depending on driver status
|
*/
|
disable_rams_ecc(fman->fpm_regs);
|
tmp &= ~FPM_IRAM_ECC_ERR_EX_EN;
|
}
|
iowrite32be(tmp, &fman->fpm_regs->fm_rie);
|
break;
|
case FMAN_EX_MURAM_ECC:
|
tmp = ioread32be(&fman->fpm_regs->fm_rie);
|
if (enable) {
|
/* enable ECC if not enabled */
|
enable_rams_ecc(fman->fpm_regs);
|
/* enable ECC interrupts */
|
tmp |= FPM_MURAM_ECC_ERR_EX_EN;
|
} else {
|
/* ECC mechanism may be disabled,
|
* depending on driver status
|
*/
|
disable_rams_ecc(fman->fpm_regs);
|
tmp &= ~FPM_MURAM_ECC_ERR_EX_EN;
|
}
|
iowrite32be(tmp, &fman->fpm_regs->fm_rie);
|
break;
|
default:
|
return -EINVAL;
|
}
|
return 0;
|
}
|
|
static void resume(struct fman_fpm_regs __iomem *fpm_rg)
|
{
|
u32 tmp;
|
|
tmp = ioread32be(&fpm_rg->fmfp_ee);
|
/* clear tmp_reg event bits in order not to clear standing events */
|
tmp &= ~(FPM_EV_MASK_DOUBLE_ECC |
|
FPM_EV_MASK_STALL | FPM_EV_MASK_SINGLE_ECC);
|
tmp |= FPM_EV_MASK_RELEASE_FM;
|
|
iowrite32be(tmp, &fpm_rg->fmfp_ee);
|
}
|
|
static int fill_soc_specific_params(struct fman_state_struct *state)
|
{
|
u8 minor = state->rev_info.minor;
|
/* P4080 - Major 2
|
* P2041/P3041/P5020/P5040 - Major 3
|
* Tx/Bx - Major 6
|
*/
|
switch (state->rev_info.major) {
|
case 3:
|
state->bmi_max_fifo_size = 160 * 1024;
|
state->fm_iram_size = 64 * 1024;
|
state->dma_thresh_max_commq = 31;
|
state->dma_thresh_max_buf = 127;
|
state->qmi_max_num_of_tnums = 64;
|
state->qmi_def_tnums_thresh = 48;
|
state->bmi_max_num_of_tasks = 128;
|
state->max_num_of_open_dmas = 32;
|
state->fm_port_num_of_cg = 256;
|
state->num_of_rx_ports = 6;
|
state->total_fifo_size = 136 * 1024;
|
break;
|
|
case 2:
|
state->bmi_max_fifo_size = 160 * 1024;
|
state->fm_iram_size = 64 * 1024;
|
state->dma_thresh_max_commq = 31;
|
state->dma_thresh_max_buf = 127;
|
state->qmi_max_num_of_tnums = 64;
|
state->qmi_def_tnums_thresh = 48;
|
state->bmi_max_num_of_tasks = 128;
|
state->max_num_of_open_dmas = 32;
|
state->fm_port_num_of_cg = 256;
|
state->num_of_rx_ports = 5;
|
state->total_fifo_size = 100 * 1024;
|
break;
|
|
case 6:
|
state->dma_thresh_max_commq = 83;
|
state->dma_thresh_max_buf = 127;
|
state->qmi_max_num_of_tnums = 64;
|
state->qmi_def_tnums_thresh = 32;
|
state->fm_port_num_of_cg = 256;
|
|
/* FManV3L */
|
if (minor == 1 || minor == 4) {
|
state->bmi_max_fifo_size = 192 * 1024;
|
state->bmi_max_num_of_tasks = 64;
|
state->max_num_of_open_dmas = 32;
|
state->num_of_rx_ports = 5;
|
if (minor == 1)
|
state->fm_iram_size = 32 * 1024;
|
else
|
state->fm_iram_size = 64 * 1024;
|
state->total_fifo_size = 156 * 1024;
|
}
|
/* FManV3H */
|
else if (minor == 0 || minor == 2 || minor == 3) {
|
state->bmi_max_fifo_size = 384 * 1024;
|
state->fm_iram_size = 64 * 1024;
|
state->bmi_max_num_of_tasks = 128;
|
state->max_num_of_open_dmas = 84;
|
state->num_of_rx_ports = 8;
|
state->total_fifo_size = 295 * 1024;
|
} else {
|
pr_err("Unsupported FManv3 version\n");
|
return -EINVAL;
|
}
|
|
break;
|
default:
|
pr_err("Unsupported FMan version\n");
|
return -EINVAL;
|
}
|
|
return 0;
|
}
|
|
static bool is_init_done(struct fman_cfg *cfg)
|
{
|
/* Checks if FMan driver parameters were initialized */
|
if (!cfg)
|
return true;
|
|
return false;
|
}
|
|
static void free_init_resources(struct fman *fman)
|
{
|
if (fman->cam_offset)
|
fman_muram_free_mem(fman->muram, fman->cam_offset,
|
fman->cam_size);
|
if (fman->fifo_offset)
|
fman_muram_free_mem(fman->muram, fman->fifo_offset,
|
fman->fifo_size);
|
}
|
|
static irqreturn_t bmi_err_event(struct fman *fman)
|
{
|
u32 event, mask, force;
|
struct fman_bmi_regs __iomem *bmi_rg = fman->bmi_regs;
|
irqreturn_t ret = IRQ_NONE;
|
|
event = ioread32be(&bmi_rg->fmbm_ievr);
|
mask = ioread32be(&bmi_rg->fmbm_ier);
|
event &= mask;
|
/* clear the forced events */
|
force = ioread32be(&bmi_rg->fmbm_ifr);
|
if (force & event)
|
iowrite32be(force & ~event, &bmi_rg->fmbm_ifr);
|
/* clear the acknowledged events */
|
iowrite32be(event, &bmi_rg->fmbm_ievr);
|
|
if (event & BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC)
|
ret = fman->exception_cb(fman, FMAN_EX_BMI_STORAGE_PROFILE_ECC);
|
if (event & BMI_ERR_INTR_EN_LIST_RAM_ECC)
|
ret = fman->exception_cb(fman, FMAN_EX_BMI_LIST_RAM_ECC);
|
if (event & BMI_ERR_INTR_EN_STATISTICS_RAM_ECC)
|
ret = fman->exception_cb(fman, FMAN_EX_BMI_STATISTICS_RAM_ECC);
|
if (event & BMI_ERR_INTR_EN_DISPATCH_RAM_ECC)
|
ret = fman->exception_cb(fman, FMAN_EX_BMI_DISPATCH_RAM_ECC);
|
|
return ret;
|
}
|
|
static irqreturn_t qmi_err_event(struct fman *fman)
|
{
|
u32 event, mask, force;
|
struct fman_qmi_regs __iomem *qmi_rg = fman->qmi_regs;
|
irqreturn_t ret = IRQ_NONE;
|
|
event = ioread32be(&qmi_rg->fmqm_eie);
|
mask = ioread32be(&qmi_rg->fmqm_eien);
|
event &= mask;
|
|
/* clear the forced events */
|
force = ioread32be(&qmi_rg->fmqm_eif);
|
if (force & event)
|
iowrite32be(force & ~event, &qmi_rg->fmqm_eif);
|
/* clear the acknowledged events */
|
iowrite32be(event, &qmi_rg->fmqm_eie);
|
|
if (event & QMI_ERR_INTR_EN_DOUBLE_ECC)
|
ret = fman->exception_cb(fman, FMAN_EX_QMI_DOUBLE_ECC);
|
if (event & QMI_ERR_INTR_EN_DEQ_FROM_DEF)
|
ret = fman->exception_cb(fman,
|
FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID);
|
|
return ret;
|
}
|
|
static irqreturn_t dma_err_event(struct fman *fman)
|
{
|
u32 status, mask, com_id;
|
u8 tnum, port_id, relative_port_id;
|
u16 liodn;
|
struct fman_dma_regs __iomem *dma_rg = fman->dma_regs;
|
irqreturn_t ret = IRQ_NONE;
|
|
status = ioread32be(&dma_rg->fmdmsr);
|
mask = ioread32be(&dma_rg->fmdmmr);
|
|
/* clear DMA_STATUS_BUS_ERR if mask has no DMA_MODE_BER */
|
if ((mask & DMA_MODE_BER) != DMA_MODE_BER)
|
status &= ~DMA_STATUS_BUS_ERR;
|
|
/* clear relevant bits if mask has no DMA_MODE_ECC */
|
if ((mask & DMA_MODE_ECC) != DMA_MODE_ECC)
|
status &= ~(DMA_STATUS_FM_SPDAT_ECC |
|
DMA_STATUS_READ_ECC |
|
DMA_STATUS_SYSTEM_WRITE_ECC |
|
DMA_STATUS_FM_WRITE_ECC);
|
|
/* clear set events */
|
iowrite32be(status, &dma_rg->fmdmsr);
|
|
if (status & DMA_STATUS_BUS_ERR) {
|
u64 addr;
|
|
addr = (u64)ioread32be(&dma_rg->fmdmtal);
|
addr |= ((u64)(ioread32be(&dma_rg->fmdmtah)) << 32);
|
|
com_id = ioread32be(&dma_rg->fmdmtcid);
|
port_id = (u8)(((com_id & DMA_TRANSFER_PORTID_MASK) >>
|
DMA_TRANSFER_PORTID_SHIFT));
|
relative_port_id =
|
hw_port_id_to_sw_port_id(fman->state->rev_info.major, port_id);
|
tnum = (u8)((com_id & DMA_TRANSFER_TNUM_MASK) >>
|
DMA_TRANSFER_TNUM_SHIFT);
|
liodn = (u16)(com_id & DMA_TRANSFER_LIODN_MASK);
|
ret = fman->bus_error_cb(fman, relative_port_id, addr, tnum,
|
liodn);
|
}
|
if (status & DMA_STATUS_FM_SPDAT_ECC)
|
ret = fman->exception_cb(fman, FMAN_EX_DMA_SINGLE_PORT_ECC);
|
if (status & DMA_STATUS_READ_ECC)
|
ret = fman->exception_cb(fman, FMAN_EX_DMA_READ_ECC);
|
if (status & DMA_STATUS_SYSTEM_WRITE_ECC)
|
ret = fman->exception_cb(fman, FMAN_EX_DMA_SYSTEM_WRITE_ECC);
|
if (status & DMA_STATUS_FM_WRITE_ECC)
|
ret = fman->exception_cb(fman, FMAN_EX_DMA_FM_WRITE_ECC);
|
|
return ret;
|
}
|
|
static irqreturn_t fpm_err_event(struct fman *fman)
|
{
|
u32 event;
|
struct fman_fpm_regs __iomem *fpm_rg = fman->fpm_regs;
|
irqreturn_t ret = IRQ_NONE;
|
|
event = ioread32be(&fpm_rg->fmfp_ee);
|
/* clear the all occurred events */
|
iowrite32be(event, &fpm_rg->fmfp_ee);
|
|
if ((event & FPM_EV_MASK_DOUBLE_ECC) &&
|
(event & FPM_EV_MASK_DOUBLE_ECC_EN))
|
ret = fman->exception_cb(fman, FMAN_EX_FPM_DOUBLE_ECC);
|
if ((event & FPM_EV_MASK_STALL) && (event & FPM_EV_MASK_STALL_EN))
|
ret = fman->exception_cb(fman, FMAN_EX_FPM_STALL_ON_TASKS);
|
if ((event & FPM_EV_MASK_SINGLE_ECC) &&
|
(event & FPM_EV_MASK_SINGLE_ECC_EN))
|
ret = fman->exception_cb(fman, FMAN_EX_FPM_SINGLE_ECC);
|
|
return ret;
|
}
|
|
static irqreturn_t muram_err_intr(struct fman *fman)
|
{
|
u32 event, mask;
|
struct fman_fpm_regs __iomem *fpm_rg = fman->fpm_regs;
|
irqreturn_t ret = IRQ_NONE;
|
|
event = ioread32be(&fpm_rg->fm_rcr);
|
mask = ioread32be(&fpm_rg->fm_rie);
|
|
/* clear MURAM event bit (do not clear IRAM event) */
|
iowrite32be(event & ~FPM_RAM_IRAM_ECC, &fpm_rg->fm_rcr);
|
|
if ((mask & FPM_MURAM_ECC_ERR_EX_EN) && (event & FPM_RAM_MURAM_ECC))
|
ret = fman->exception_cb(fman, FMAN_EX_MURAM_ECC);
|
|
return ret;
|
}
|
|
static irqreturn_t qmi_event(struct fman *fman)
|
{
|
u32 event, mask, force;
|
struct fman_qmi_regs __iomem *qmi_rg = fman->qmi_regs;
|
irqreturn_t ret = IRQ_NONE;
|
|
event = ioread32be(&qmi_rg->fmqm_ie);
|
mask = ioread32be(&qmi_rg->fmqm_ien);
|
event &= mask;
|
/* clear the forced events */
|
force = ioread32be(&qmi_rg->fmqm_if);
|
if (force & event)
|
iowrite32be(force & ~event, &qmi_rg->fmqm_if);
|
/* clear the acknowledged events */
|
iowrite32be(event, &qmi_rg->fmqm_ie);
|
|
if (event & QMI_INTR_EN_SINGLE_ECC)
|
ret = fman->exception_cb(fman, FMAN_EX_QMI_SINGLE_ECC);
|
|
return ret;
|
}
|
|
static void enable_time_stamp(struct fman *fman)
|
{
|
struct fman_fpm_regs __iomem *fpm_rg = fman->fpm_regs;
|
u16 fm_clk_freq = fman->state->fm_clk_freq;
|
u32 tmp, intgr, ts_freq, frac;
|
|
ts_freq = (u32)(1 << fman->state->count1_micro_bit);
|
/* configure timestamp so that bit 8 will count 1 microsecond
|
* Find effective count rate at TIMESTAMP least significant bits:
|
* Effective_Count_Rate = 1MHz x 2^8 = 256MHz
|
* Find frequency ratio between effective count rate and the clock:
|
* Effective_Count_Rate / CLK e.g. for 600 MHz clock:
|
* 256/600 = 0.4266666...
|
*/
|
|
intgr = ts_freq / fm_clk_freq;
|
/* we multiply by 2^16 to keep the fraction of the division
|
* we do not div back, since we write this value as a fraction
|
* see spec
|
*/
|
|
frac = ((ts_freq << 16) - (intgr << 16) * fm_clk_freq) / fm_clk_freq;
|
/* we check remainder of the division in order to round up if not int */
|
if (((ts_freq << 16) - (intgr << 16) * fm_clk_freq) % fm_clk_freq)
|
frac++;
|
|
tmp = (intgr << FPM_TS_INT_SHIFT) | (u16)frac;
|
iowrite32be(tmp, &fpm_rg->fmfp_tsc2);
|
|
/* enable timestamp with original clock */
|
iowrite32be(FPM_TS_CTL_EN, &fpm_rg->fmfp_tsc1);
|
fman->state->enabled_time_stamp = true;
|
}
|
|
static int clear_iram(struct fman *fman)
|
{
|
struct fman_iram_regs __iomem *iram;
|
int i, count;
|
|
iram = fman->base_addr + IMEM_OFFSET;
|
|
/* Enable the auto-increment */
|
iowrite32be(IRAM_IADD_AIE, &iram->iadd);
|
count = 100;
|
do {
|
udelay(1);
|
} while ((ioread32be(&iram->iadd) != IRAM_IADD_AIE) && --count);
|
if (count == 0)
|
return -EBUSY;
|
|
for (i = 0; i < (fman->state->fm_iram_size / 4); i++)
|
iowrite32be(0xffffffff, &iram->idata);
|
|
iowrite32be(fman->state->fm_iram_size - 4, &iram->iadd);
|
count = 100;
|
do {
|
udelay(1);
|
} while ((ioread32be(&iram->idata) != 0xffffffff) && --count);
|
if (count == 0)
|
return -EBUSY;
|
|
return 0;
|
}
|
|
static u32 get_exception_flag(enum fman_exceptions exception)
|
{
|
u32 bit_mask;
|
|
switch (exception) {
|
case FMAN_EX_DMA_BUS_ERROR:
|
bit_mask = EX_DMA_BUS_ERROR;
|
break;
|
case FMAN_EX_DMA_SINGLE_PORT_ECC:
|
bit_mask = EX_DMA_SINGLE_PORT_ECC;
|
break;
|
case FMAN_EX_DMA_READ_ECC:
|
bit_mask = EX_DMA_READ_ECC;
|
break;
|
case FMAN_EX_DMA_SYSTEM_WRITE_ECC:
|
bit_mask = EX_DMA_SYSTEM_WRITE_ECC;
|
break;
|
case FMAN_EX_DMA_FM_WRITE_ECC:
|
bit_mask = EX_DMA_FM_WRITE_ECC;
|
break;
|
case FMAN_EX_FPM_STALL_ON_TASKS:
|
bit_mask = EX_FPM_STALL_ON_TASKS;
|
break;
|
case FMAN_EX_FPM_SINGLE_ECC:
|
bit_mask = EX_FPM_SINGLE_ECC;
|
break;
|
case FMAN_EX_FPM_DOUBLE_ECC:
|
bit_mask = EX_FPM_DOUBLE_ECC;
|
break;
|
case FMAN_EX_QMI_SINGLE_ECC:
|
bit_mask = EX_QMI_SINGLE_ECC;
|
break;
|
case FMAN_EX_QMI_DOUBLE_ECC:
|
bit_mask = EX_QMI_DOUBLE_ECC;
|
break;
|
case FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID:
|
bit_mask = EX_QMI_DEQ_FROM_UNKNOWN_PORTID;
|
break;
|
case FMAN_EX_BMI_LIST_RAM_ECC:
|
bit_mask = EX_BMI_LIST_RAM_ECC;
|
break;
|
case FMAN_EX_BMI_STORAGE_PROFILE_ECC:
|
bit_mask = EX_BMI_STORAGE_PROFILE_ECC;
|
break;
|
case FMAN_EX_BMI_STATISTICS_RAM_ECC:
|
bit_mask = EX_BMI_STATISTICS_RAM_ECC;
|
break;
|
case FMAN_EX_BMI_DISPATCH_RAM_ECC:
|
bit_mask = EX_BMI_DISPATCH_RAM_ECC;
|
break;
|
case FMAN_EX_MURAM_ECC:
|
bit_mask = EX_MURAM_ECC;
|
break;
|
default:
|
bit_mask = 0;
|
break;
|
}
|
|
return bit_mask;
|
}
|
|
static int get_module_event(enum fman_event_modules module, u8 mod_id,
|
enum fman_intr_type intr_type)
|
{
|
int event;
|
|
switch (module) {
|
case FMAN_MOD_MAC:
|
if (intr_type == FMAN_INTR_TYPE_ERR)
|
event = FMAN_EV_ERR_MAC0 + mod_id;
|
else
|
event = FMAN_EV_MAC0 + mod_id;
|
break;
|
case FMAN_MOD_FMAN_CTRL:
|
if (intr_type == FMAN_INTR_TYPE_ERR)
|
event = FMAN_EV_CNT;
|
else
|
event = (FMAN_EV_FMAN_CTRL_0 + mod_id);
|
break;
|
case FMAN_MOD_DUMMY_LAST:
|
event = FMAN_EV_CNT;
|
break;
|
default:
|
event = FMAN_EV_CNT;
|
break;
|
}
|
|
return event;
|
}
|
|
static int set_size_of_fifo(struct fman *fman, u8 port_id, u32 *size_of_fifo,
|
u32 *extra_size_of_fifo)
|
{
|
struct fman_bmi_regs __iomem *bmi_rg = fman->bmi_regs;
|
u32 fifo = *size_of_fifo;
|
u32 extra_fifo = *extra_size_of_fifo;
|
u32 tmp;
|
|
/* if this is the first time a port requires extra_fifo_pool_size,
|
* the total extra_fifo_pool_size must be initialized to 1 buffer per
|
* port
|
*/
|
if (extra_fifo && !fman->state->extra_fifo_pool_size)
|
fman->state->extra_fifo_pool_size =
|
fman->state->num_of_rx_ports * FMAN_BMI_FIFO_UNITS;
|
|
fman->state->extra_fifo_pool_size =
|
max(fman->state->extra_fifo_pool_size, extra_fifo);
|
|
/* check that there are enough uncommitted fifo size */
|
if ((fman->state->accumulated_fifo_size + fifo) >
|
(fman->state->total_fifo_size -
|
fman->state->extra_fifo_pool_size)) {
|
dev_err(fman->dev, "%s: Requested fifo size and extra size exceed total FIFO size.\n",
|
__func__);
|
return -EAGAIN;
|
}
|
|
/* Read, modify and write to HW */
|
tmp = (fifo / FMAN_BMI_FIFO_UNITS - 1) |
|
((extra_fifo / FMAN_BMI_FIFO_UNITS) <<
|
BMI_EXTRA_FIFO_SIZE_SHIFT);
|
iowrite32be(tmp, &bmi_rg->fmbm_pfs[port_id - 1]);
|
|
/* update accumulated */
|
fman->state->accumulated_fifo_size += fifo;
|
|
return 0;
|
}
|
|
static int set_num_of_tasks(struct fman *fman, u8 port_id, u8 *num_of_tasks,
|
u8 *num_of_extra_tasks)
|
{
|
struct fman_bmi_regs __iomem *bmi_rg = fman->bmi_regs;
|
u8 tasks = *num_of_tasks;
|
u8 extra_tasks = *num_of_extra_tasks;
|
u32 tmp;
|
|
if (extra_tasks)
|
fman->state->extra_tasks_pool_size =
|
max(fman->state->extra_tasks_pool_size, extra_tasks);
|
|
/* check that there are enough uncommitted tasks */
|
if ((fman->state->accumulated_num_of_tasks + tasks) >
|
(fman->state->total_num_of_tasks -
|
fman->state->extra_tasks_pool_size)) {
|
dev_err(fman->dev, "%s: Requested num_of_tasks and extra tasks pool for fm%d exceed total num_of_tasks.\n",
|
__func__, fman->state->fm_id);
|
return -EAGAIN;
|
}
|
/* update accumulated */
|
fman->state->accumulated_num_of_tasks += tasks;
|
|
/* Write to HW */
|
tmp = ioread32be(&bmi_rg->fmbm_pp[port_id - 1]) &
|
~(BMI_NUM_OF_TASKS_MASK | BMI_NUM_OF_EXTRA_TASKS_MASK);
|
tmp |= ((u32)((tasks - 1) << BMI_NUM_OF_TASKS_SHIFT) |
|
(u32)(extra_tasks << BMI_EXTRA_NUM_OF_TASKS_SHIFT));
|
iowrite32be(tmp, &bmi_rg->fmbm_pp[port_id - 1]);
|
|
return 0;
|
}
|
|
static int set_num_of_open_dmas(struct fman *fman, u8 port_id,
|
u8 *num_of_open_dmas,
|
u8 *num_of_extra_open_dmas)
|
{
|
struct fman_bmi_regs __iomem *bmi_rg = fman->bmi_regs;
|
u8 open_dmas = *num_of_open_dmas;
|
u8 extra_open_dmas = *num_of_extra_open_dmas;
|
u8 total_num_dmas = 0, current_val = 0, current_extra_val = 0;
|
u32 tmp;
|
|
if (!open_dmas) {
|
/* Configuration according to values in the HW.
|
* read the current number of open Dma's
|
*/
|
tmp = ioread32be(&bmi_rg->fmbm_pp[port_id - 1]);
|
current_extra_val = (u8)((tmp & BMI_NUM_OF_EXTRA_DMAS_MASK) >>
|
BMI_EXTRA_NUM_OF_DMAS_SHIFT);
|
|
tmp = ioread32be(&bmi_rg->fmbm_pp[port_id - 1]);
|
current_val = (u8)(((tmp & BMI_NUM_OF_DMAS_MASK) >>
|
BMI_NUM_OF_DMAS_SHIFT) + 1);
|
|
/* This is the first configuration and user did not
|
* specify value (!open_dmas), reset values will be used
|
* and we just save these values for resource management
|
*/
|
fman->state->extra_open_dmas_pool_size =
|
(u8)max(fman->state->extra_open_dmas_pool_size,
|
current_extra_val);
|
fman->state->accumulated_num_of_open_dmas += current_val;
|
*num_of_open_dmas = current_val;
|
*num_of_extra_open_dmas = current_extra_val;
|
return 0;
|
}
|
|
if (extra_open_dmas > current_extra_val)
|
fman->state->extra_open_dmas_pool_size =
|
(u8)max(fman->state->extra_open_dmas_pool_size,
|
extra_open_dmas);
|
|
if ((fman->state->rev_info.major < 6) &&
|
(fman->state->accumulated_num_of_open_dmas - current_val +
|
open_dmas > fman->state->max_num_of_open_dmas)) {
|
dev_err(fman->dev, "%s: Requested num_of_open_dmas for fm%d exceeds total num_of_open_dmas.\n",
|
__func__, fman->state->fm_id);
|
return -EAGAIN;
|
} else if ((fman->state->rev_info.major >= 6) &&
|
!((fman->state->rev_info.major == 6) &&
|
(fman->state->rev_info.minor == 0)) &&
|
(fman->state->accumulated_num_of_open_dmas -
|
current_val + open_dmas >
|
fman->state->dma_thresh_max_commq + 1)) {
|
dev_err(fman->dev, "%s: Requested num_of_open_dmas for fm%d exceeds DMA Command queue (%d)\n",
|
__func__, fman->state->fm_id,
|
fman->state->dma_thresh_max_commq + 1);
|
return -EAGAIN;
|
}
|
|
WARN_ON(fman->state->accumulated_num_of_open_dmas < current_val);
|
/* update acummulated */
|
fman->state->accumulated_num_of_open_dmas -= current_val;
|
fman->state->accumulated_num_of_open_dmas += open_dmas;
|
|
if (fman->state->rev_info.major < 6)
|
total_num_dmas =
|
(u8)(fman->state->accumulated_num_of_open_dmas +
|
fman->state->extra_open_dmas_pool_size);
|
|
/* calculate reg */
|
tmp = ioread32be(&bmi_rg->fmbm_pp[port_id - 1]) &
|
~(BMI_NUM_OF_DMAS_MASK | BMI_NUM_OF_EXTRA_DMAS_MASK);
|
tmp |= (u32)(((open_dmas - 1) << BMI_NUM_OF_DMAS_SHIFT) |
|
(extra_open_dmas << BMI_EXTRA_NUM_OF_DMAS_SHIFT));
|
iowrite32be(tmp, &bmi_rg->fmbm_pp[port_id - 1]);
|
|
/* update total num of DMA's with committed number of open DMAS,
|
* and max uncommitted pool.
|
*/
|
if (total_num_dmas) {
|
tmp = ioread32be(&bmi_rg->fmbm_cfg2) & ~BMI_CFG2_DMAS_MASK;
|
tmp |= (u32)(total_num_dmas - 1) << BMI_CFG2_DMAS_SHIFT;
|
iowrite32be(tmp, &bmi_rg->fmbm_cfg2);
|
}
|
|
return 0;
|
}
|
|
static int fman_config(struct fman *fman)
|
{
|
void __iomem *base_addr;
|
int err;
|
|
base_addr = fman->dts_params.base_addr;
|
|
fman->state = kzalloc(sizeof(*fman->state), GFP_KERNEL);
|
if (!fman->state)
|
goto err_fm_state;
|
|
/* Allocate the FM driver's parameters structure */
|
fman->cfg = kzalloc(sizeof(*fman->cfg), GFP_KERNEL);
|
if (!fman->cfg)
|
goto err_fm_drv;
|
|
/* Initialize MURAM block */
|
fman->muram =
|
fman_muram_init(fman->dts_params.muram_res.start,
|
resource_size(&fman->dts_params.muram_res));
|
if (!fman->muram)
|
goto err_fm_soc_specific;
|
|
/* Initialize FM parameters which will be kept by the driver */
|
fman->state->fm_id = fman->dts_params.id;
|
fman->state->fm_clk_freq = fman->dts_params.clk_freq;
|
fman->state->qman_channel_base = fman->dts_params.qman_channel_base;
|
fman->state->num_of_qman_channels =
|
fman->dts_params.num_of_qman_channels;
|
fman->state->res = fman->dts_params.res;
|
fman->exception_cb = fman_exceptions;
|
fman->bus_error_cb = fman_bus_error;
|
fman->fpm_regs = base_addr + FPM_OFFSET;
|
fman->bmi_regs = base_addr + BMI_OFFSET;
|
fman->qmi_regs = base_addr + QMI_OFFSET;
|
fman->dma_regs = base_addr + DMA_OFFSET;
|
fman->hwp_regs = base_addr + HWP_OFFSET;
|
fman->kg_regs = base_addr + KG_OFFSET;
|
fman->base_addr = base_addr;
|
|
spin_lock_init(&fman->spinlock);
|
fman_defconfig(fman->cfg);
|
|
fman->state->extra_fifo_pool_size = 0;
|
fman->state->exceptions = (EX_DMA_BUS_ERROR |
|
EX_DMA_READ_ECC |
|
EX_DMA_SYSTEM_WRITE_ECC |
|
EX_DMA_FM_WRITE_ECC |
|
EX_FPM_STALL_ON_TASKS |
|
EX_FPM_SINGLE_ECC |
|
EX_FPM_DOUBLE_ECC |
|
EX_QMI_DEQ_FROM_UNKNOWN_PORTID |
|
EX_BMI_LIST_RAM_ECC |
|
EX_BMI_STORAGE_PROFILE_ECC |
|
EX_BMI_STATISTICS_RAM_ECC |
|
EX_MURAM_ECC |
|
EX_BMI_DISPATCH_RAM_ECC |
|
EX_QMI_DOUBLE_ECC |
|
EX_QMI_SINGLE_ECC);
|
|
/* Read FMan revision for future use*/
|
fman_get_revision(fman, &fman->state->rev_info);
|
|
err = fill_soc_specific_params(fman->state);
|
if (err)
|
goto err_fm_soc_specific;
|
|
/* FM_AID_MODE_NO_TNUM_SW005 Errata workaround */
|
if (fman->state->rev_info.major >= 6)
|
fman->cfg->dma_aid_mode = FMAN_DMA_AID_OUT_PORT_ID;
|
|
fman->cfg->qmi_def_tnums_thresh = fman->state->qmi_def_tnums_thresh;
|
|
fman->state->total_num_of_tasks =
|
(u8)DFLT_TOTAL_NUM_OF_TASKS(fman->state->rev_info.major,
|
fman->state->rev_info.minor,
|
fman->state->bmi_max_num_of_tasks);
|
|
if (fman->state->rev_info.major < 6) {
|
fman->cfg->dma_comm_qtsh_clr_emer =
|
(u8)DFLT_DMA_COMM_Q_LOW(fman->state->rev_info.major,
|
fman->state->dma_thresh_max_commq);
|
|
fman->cfg->dma_comm_qtsh_asrt_emer =
|
(u8)DFLT_DMA_COMM_Q_HIGH(fman->state->rev_info.major,
|
fman->state->dma_thresh_max_commq);
|
|
fman->cfg->dma_cam_num_of_entries =
|
DFLT_DMA_CAM_NUM_OF_ENTRIES(fman->state->rev_info.major);
|
|
fman->cfg->dma_read_buf_tsh_clr_emer =
|
DFLT_DMA_READ_INT_BUF_LOW(fman->state->dma_thresh_max_buf);
|
|
fman->cfg->dma_read_buf_tsh_asrt_emer =
|
DFLT_DMA_READ_INT_BUF_HIGH(fman->state->dma_thresh_max_buf);
|
|
fman->cfg->dma_write_buf_tsh_clr_emer =
|
DFLT_DMA_WRITE_INT_BUF_LOW(fman->state->dma_thresh_max_buf);
|
|
fman->cfg->dma_write_buf_tsh_asrt_emer =
|
DFLT_DMA_WRITE_INT_BUF_HIGH(fman->state->dma_thresh_max_buf);
|
|
fman->cfg->dma_axi_dbg_num_of_beats =
|
DFLT_AXI_DBG_NUM_OF_BEATS;
|
}
|
|
return 0;
|
|
err_fm_soc_specific:
|
kfree(fman->cfg);
|
err_fm_drv:
|
kfree(fman->state);
|
err_fm_state:
|
kfree(fman);
|
return -EINVAL;
|
}
|
|
static int fman_reset(struct fman *fman)
|
{
|
u32 count;
|
int err = 0;
|
|
if (fman->state->rev_info.major < 6) {
|
iowrite32be(FPM_RSTC_FM_RESET, &fman->fpm_regs->fm_rstc);
|
/* Wait for reset completion */
|
count = 100;
|
do {
|
udelay(1);
|
} while (((ioread32be(&fman->fpm_regs->fm_rstc)) &
|
FPM_RSTC_FM_RESET) && --count);
|
if (count == 0)
|
err = -EBUSY;
|
|
goto _return;
|
} else {
|
#ifdef CONFIG_PPC
|
struct device_node *guts_node;
|
struct ccsr_guts __iomem *guts_regs;
|
u32 devdisr2, reg;
|
|
/* Errata A007273 */
|
guts_node =
|
of_find_compatible_node(NULL, NULL,
|
"fsl,qoriq-device-config-2.0");
|
if (!guts_node) {
|
dev_err(fman->dev, "%s: Couldn't find guts node\n",
|
__func__);
|
goto guts_node;
|
}
|
|
guts_regs = of_iomap(guts_node, 0);
|
if (!guts_regs) {
|
dev_err(fman->dev, "%s: Couldn't map %pOF regs\n",
|
__func__, guts_node);
|
goto guts_regs;
|
}
|
#define FMAN1_ALL_MACS_MASK 0xFCC00000
|
#define FMAN2_ALL_MACS_MASK 0x000FCC00
|
/* Read current state */
|
devdisr2 = ioread32be(&guts_regs->devdisr2);
|
if (fman->dts_params.id == 0)
|
reg = devdisr2 & ~FMAN1_ALL_MACS_MASK;
|
else
|
reg = devdisr2 & ~FMAN2_ALL_MACS_MASK;
|
|
/* Enable all MACs */
|
iowrite32be(reg, &guts_regs->devdisr2);
|
#endif
|
|
/* Perform FMan reset */
|
iowrite32be(FPM_RSTC_FM_RESET, &fman->fpm_regs->fm_rstc);
|
|
/* Wait for reset completion */
|
count = 100;
|
do {
|
udelay(1);
|
} while (((ioread32be(&fman->fpm_regs->fm_rstc)) &
|
FPM_RSTC_FM_RESET) && --count);
|
if (count == 0) {
|
#ifdef CONFIG_PPC
|
iounmap(guts_regs);
|
of_node_put(guts_node);
|
#endif
|
err = -EBUSY;
|
goto _return;
|
}
|
#ifdef CONFIG_PPC
|
|
/* Restore devdisr2 value */
|
iowrite32be(devdisr2, &guts_regs->devdisr2);
|
|
iounmap(guts_regs);
|
of_node_put(guts_node);
|
#endif
|
|
goto _return;
|
|
#ifdef CONFIG_PPC
|
guts_regs:
|
of_node_put(guts_node);
|
guts_node:
|
dev_dbg(fman->dev, "%s: Didn't perform FManV3 reset due to Errata A007273!\n",
|
__func__);
|
#endif
|
}
|
_return:
|
return err;
|
}
|
|
static int fman_init(struct fman *fman)
|
{
|
struct fman_cfg *cfg = NULL;
|
int err = 0, i, count;
|
|
if (is_init_done(fman->cfg))
|
return -EINVAL;
|
|
fman->state->count1_micro_bit = FM_TIMESTAMP_1_USEC_BIT;
|
|
cfg = fman->cfg;
|
|
/* clear revision-dependent non existing exception */
|
if (fman->state->rev_info.major < 6)
|
fman->state->exceptions &= ~FMAN_EX_BMI_DISPATCH_RAM_ECC;
|
|
if (fman->state->rev_info.major >= 6)
|
fman->state->exceptions &= ~FMAN_EX_QMI_SINGLE_ECC;
|
|
/* clear CPG */
|
memset_io((void __iomem *)(fman->base_addr + CGP_OFFSET), 0,
|
fman->state->fm_port_num_of_cg);
|
|
/* Save LIODN info before FMan reset
|
* Skipping non-existent port 0 (i = 1)
|
*/
|
for (i = 1; i < FMAN_LIODN_TBL; i++) {
|
u32 liodn_base;
|
|
fman->liodn_offset[i] =
|
ioread32be(&fman->bmi_regs->fmbm_spliodn[i - 1]);
|
if (!IS_ENABLED(CONFIG_FSL_PAMU))
|
continue;
|
liodn_base = ioread32be(&fman->dma_regs->fmdmplr[i / 2]);
|
if (i % 2) {
|
/* FMDM_PLR LSB holds LIODN base for odd ports */
|
liodn_base &= DMA_LIODN_BASE_MASK;
|
} else {
|
/* FMDM_PLR MSB holds LIODN base for even ports */
|
liodn_base >>= DMA_LIODN_SHIFT;
|
liodn_base &= DMA_LIODN_BASE_MASK;
|
}
|
fman->liodn_base[i] = liodn_base;
|
}
|
|
err = fman_reset(fman);
|
if (err)
|
return err;
|
|
if (ioread32be(&fman->qmi_regs->fmqm_gs) & QMI_GS_HALT_NOT_BUSY) {
|
resume(fman->fpm_regs);
|
/* Wait until QMI is not in halt not busy state */
|
count = 100;
|
do {
|
udelay(1);
|
} while (((ioread32be(&fman->qmi_regs->fmqm_gs)) &
|
QMI_GS_HALT_NOT_BUSY) && --count);
|
if (count == 0)
|
dev_warn(fman->dev, "%s: QMI is in halt not busy state\n",
|
__func__);
|
}
|
|
if (clear_iram(fman) != 0)
|
return -EINVAL;
|
|
cfg->exceptions = fman->state->exceptions;
|
|
/* Init DMA Registers */
|
|
err = dma_init(fman);
|
if (err != 0) {
|
free_init_resources(fman);
|
return err;
|
}
|
|
/* Init FPM Registers */
|
fpm_init(fman->fpm_regs, fman->cfg);
|
|
/* define common resources */
|
/* allocate MURAM for FIFO according to total size */
|
fman->fifo_offset = fman_muram_alloc(fman->muram,
|
fman->state->total_fifo_size);
|
if (IS_ERR_VALUE(fman->fifo_offset)) {
|
free_init_resources(fman);
|
dev_err(fman->dev, "%s: MURAM alloc for BMI FIFO failed\n",
|
__func__);
|
return -ENOMEM;
|
}
|
|
cfg->fifo_base_addr = fman->fifo_offset;
|
cfg->total_fifo_size = fman->state->total_fifo_size;
|
cfg->total_num_of_tasks = fman->state->total_num_of_tasks;
|
cfg->clk_freq = fman->state->fm_clk_freq;
|
|
/* Init BMI Registers */
|
bmi_init(fman->bmi_regs, fman->cfg);
|
|
/* Init QMI Registers */
|
qmi_init(fman->qmi_regs, fman->cfg);
|
|
/* Init HW Parser */
|
hwp_init(fman->hwp_regs);
|
|
/* Init KeyGen */
|
fman->keygen = keygen_init(fman->kg_regs);
|
if (!fman->keygen)
|
return -EINVAL;
|
|
err = enable(fman, cfg);
|
if (err != 0)
|
return err;
|
|
enable_time_stamp(fman);
|
|
kfree(fman->cfg);
|
fman->cfg = NULL;
|
|
return 0;
|
}
|
|
static int fman_set_exception(struct fman *fman,
|
enum fman_exceptions exception, bool enable)
|
{
|
u32 bit_mask = 0;
|
|
if (!is_init_done(fman->cfg))
|
return -EINVAL;
|
|
bit_mask = get_exception_flag(exception);
|
if (bit_mask) {
|
if (enable)
|
fman->state->exceptions |= bit_mask;
|
else
|
fman->state->exceptions &= ~bit_mask;
|
} else {
|
dev_err(fman->dev, "%s: Undefined exception (%d)\n",
|
__func__, exception);
|
return -EINVAL;
|
}
|
|
return set_exception(fman, exception, enable);
|
}
|
|
/**
|
* fman_register_intr
|
* @fman: A Pointer to FMan device
|
* @module: Calling module
|
* @mod_id: Module id (if more than 1 exists, '0' if not)
|
* @intr_type: Interrupt type (error/normal) selection.
|
* @isr_cb: The interrupt service routine.
|
* @src_arg: Argument to be passed to isr_cb.
|
*
|
* Used to register an event handler to be processed by FMan
|
*
|
* Return: 0 on success; Error code otherwise.
|
*/
|
void fman_register_intr(struct fman *fman, enum fman_event_modules module,
|
u8 mod_id, enum fman_intr_type intr_type,
|
void (*isr_cb)(void *src_arg), void *src_arg)
|
{
|
int event = 0;
|
|
event = get_module_event(module, mod_id, intr_type);
|
WARN_ON(event >= FMAN_EV_CNT);
|
|
/* register in local FM structure */
|
fman->intr_mng[event].isr_cb = isr_cb;
|
fman->intr_mng[event].src_handle = src_arg;
|
}
|
EXPORT_SYMBOL(fman_register_intr);
|
|
/**
|
* fman_unregister_intr
|
* @fman: A Pointer to FMan device
|
* @module: Calling module
|
* @mod_id: Module id (if more than 1 exists, '0' if not)
|
* @intr_type: Interrupt type (error/normal) selection.
|
*
|
* Used to unregister an event handler to be processed by FMan
|
*
|
* Return: 0 on success; Error code otherwise.
|
*/
|
void fman_unregister_intr(struct fman *fman, enum fman_event_modules module,
|
u8 mod_id, enum fman_intr_type intr_type)
|
{
|
int event = 0;
|
|
event = get_module_event(module, mod_id, intr_type);
|
WARN_ON(event >= FMAN_EV_CNT);
|
|
fman->intr_mng[event].isr_cb = NULL;
|
fman->intr_mng[event].src_handle = NULL;
|
}
|
EXPORT_SYMBOL(fman_unregister_intr);
|
|
/**
|
* fman_set_port_params
|
* @fman: A Pointer to FMan device
|
* @port_params: Port parameters
|
*
|
* Used by FMan Port to pass parameters to the FMan
|
*
|
* Return: 0 on success; Error code otherwise.
|
*/
|
int fman_set_port_params(struct fman *fman,
|
struct fman_port_init_params *port_params)
|
{
|
int err;
|
unsigned long flags;
|
u8 port_id = port_params->port_id, mac_id;
|
|
spin_lock_irqsave(&fman->spinlock, flags);
|
|
err = set_num_of_tasks(fman, port_params->port_id,
|
&port_params->num_of_tasks,
|
&port_params->num_of_extra_tasks);
|
if (err)
|
goto return_err;
|
|
/* TX Ports */
|
if (port_params->port_type != FMAN_PORT_TYPE_RX) {
|
u32 enq_th, deq_th, reg;
|
|
/* update qmi ENQ/DEQ threshold */
|
fman->state->accumulated_num_of_deq_tnums +=
|
port_params->deq_pipeline_depth;
|
enq_th = (ioread32be(&fman->qmi_regs->fmqm_gc) &
|
QMI_CFG_ENQ_MASK) >> QMI_CFG_ENQ_SHIFT;
|
/* if enq_th is too big, we reduce it to the max value
|
* that is still 0
|
*/
|
if (enq_th >= (fman->state->qmi_max_num_of_tnums -
|
fman->state->accumulated_num_of_deq_tnums)) {
|
enq_th =
|
fman->state->qmi_max_num_of_tnums -
|
fman->state->accumulated_num_of_deq_tnums - 1;
|
|
reg = ioread32be(&fman->qmi_regs->fmqm_gc);
|
reg &= ~QMI_CFG_ENQ_MASK;
|
reg |= (enq_th << QMI_CFG_ENQ_SHIFT);
|
iowrite32be(reg, &fman->qmi_regs->fmqm_gc);
|
}
|
|
deq_th = ioread32be(&fman->qmi_regs->fmqm_gc) &
|
QMI_CFG_DEQ_MASK;
|
/* if deq_th is too small, we enlarge it to the min
|
* value that is still 0.
|
* depTh may not be larger than 63
|
* (fman->state->qmi_max_num_of_tnums-1).
|
*/
|
if ((deq_th <= fman->state->accumulated_num_of_deq_tnums) &&
|
(deq_th < fman->state->qmi_max_num_of_tnums - 1)) {
|
deq_th = fman->state->accumulated_num_of_deq_tnums + 1;
|
reg = ioread32be(&fman->qmi_regs->fmqm_gc);
|
reg &= ~QMI_CFG_DEQ_MASK;
|
reg |= deq_th;
|
iowrite32be(reg, &fman->qmi_regs->fmqm_gc);
|
}
|
}
|
|
err = set_size_of_fifo(fman, port_params->port_id,
|
&port_params->size_of_fifo,
|
&port_params->extra_size_of_fifo);
|
if (err)
|
goto return_err;
|
|
err = set_num_of_open_dmas(fman, port_params->port_id,
|
&port_params->num_of_open_dmas,
|
&port_params->num_of_extra_open_dmas);
|
if (err)
|
goto return_err;
|
|
set_port_liodn(fman, port_id, fman->liodn_base[port_id],
|
fman->liodn_offset[port_id]);
|
|
if (fman->state->rev_info.major < 6)
|
set_port_order_restoration(fman->fpm_regs, port_id);
|
|
mac_id = hw_port_id_to_sw_port_id(fman->state->rev_info.major, port_id);
|
|
if (port_params->max_frame_length >= fman->state->mac_mfl[mac_id]) {
|
fman->state->port_mfl[mac_id] = port_params->max_frame_length;
|
} else {
|
dev_warn(fman->dev, "%s: Port (%d) max_frame_length is smaller than MAC (%d) current MTU\n",
|
__func__, port_id, mac_id);
|
err = -EINVAL;
|
goto return_err;
|
}
|
|
spin_unlock_irqrestore(&fman->spinlock, flags);
|
|
return 0;
|
|
return_err:
|
spin_unlock_irqrestore(&fman->spinlock, flags);
|
return err;
|
}
|
EXPORT_SYMBOL(fman_set_port_params);
|
|
/**
|
* fman_reset_mac
|
* @fman: A Pointer to FMan device
|
* @mac_id: MAC id to be reset
|
*
|
* Reset a specific MAC
|
*
|
* Return: 0 on success; Error code otherwise.
|
*/
|
int fman_reset_mac(struct fman *fman, u8 mac_id)
|
{
|
struct fman_fpm_regs __iomem *fpm_rg = fman->fpm_regs;
|
u32 msk, timeout = 100;
|
|
if (fman->state->rev_info.major >= 6) {
|
dev_err(fman->dev, "%s: FMan MAC reset no available for FMan V3!\n",
|
__func__);
|
return -EINVAL;
|
}
|
|
/* Get the relevant bit mask */
|
switch (mac_id) {
|
case 0:
|
msk = FPM_RSTC_MAC0_RESET;
|
break;
|
case 1:
|
msk = FPM_RSTC_MAC1_RESET;
|
break;
|
case 2:
|
msk = FPM_RSTC_MAC2_RESET;
|
break;
|
case 3:
|
msk = FPM_RSTC_MAC3_RESET;
|
break;
|
case 4:
|
msk = FPM_RSTC_MAC4_RESET;
|
break;
|
case 5:
|
msk = FPM_RSTC_MAC5_RESET;
|
break;
|
case 6:
|
msk = FPM_RSTC_MAC6_RESET;
|
break;
|
case 7:
|
msk = FPM_RSTC_MAC7_RESET;
|
break;
|
case 8:
|
msk = FPM_RSTC_MAC8_RESET;
|
break;
|
case 9:
|
msk = FPM_RSTC_MAC9_RESET;
|
break;
|
default:
|
dev_warn(fman->dev, "%s: Illegal MAC Id [%d]\n",
|
__func__, mac_id);
|
return -EINVAL;
|
}
|
|
/* reset */
|
iowrite32be(msk, &fpm_rg->fm_rstc);
|
while ((ioread32be(&fpm_rg->fm_rstc) & msk) && --timeout)
|
udelay(10);
|
|
if (!timeout)
|
return -EIO;
|
|
return 0;
|
}
|
EXPORT_SYMBOL(fman_reset_mac);
|
|
/**
|
* fman_set_mac_max_frame
|
* @fman: A Pointer to FMan device
|
* @mac_id: MAC id
|
* @mfl: Maximum frame length
|
*
|
* Set maximum frame length of specific MAC in FMan driver
|
*
|
* Return: 0 on success; Error code otherwise.
|
*/
|
int fman_set_mac_max_frame(struct fman *fman, u8 mac_id, u16 mfl)
|
{
|
/* if port is already initialized, check that MaxFrameLength is smaller
|
* or equal to the port's max
|
*/
|
if ((!fman->state->port_mfl[mac_id]) ||
|
(mfl <= fman->state->port_mfl[mac_id])) {
|
fman->state->mac_mfl[mac_id] = mfl;
|
} else {
|
dev_warn(fman->dev, "%s: MAC max_frame_length is larger than Port max_frame_length\n",
|
__func__);
|
return -EINVAL;
|
}
|
return 0;
|
}
|
EXPORT_SYMBOL(fman_set_mac_max_frame);
|
|
/**
|
* fman_get_clock_freq
|
* @fman: A Pointer to FMan device
|
*
|
* Get FMan clock frequency
|
*
|
* Return: FMan clock frequency
|
*/
|
u16 fman_get_clock_freq(struct fman *fman)
|
{
|
return fman->state->fm_clk_freq;
|
}
|
|
/**
|
* fman_get_bmi_max_fifo_size
|
* @fman: A Pointer to FMan device
|
*
|
* Get FMan maximum FIFO size
|
*
|
* Return: FMan Maximum FIFO size
|
*/
|
u32 fman_get_bmi_max_fifo_size(struct fman *fman)
|
{
|
return fman->state->bmi_max_fifo_size;
|
}
|
EXPORT_SYMBOL(fman_get_bmi_max_fifo_size);
|
|
/**
|
* fman_get_revision
|
* @fman: - Pointer to the FMan module
|
* @rev_info: - A structure of revision information parameters.
|
*
|
* Returns the FM revision
|
*
|
* Allowed only following fman_init().
|
*
|
* Return: 0 on success; Error code otherwise.
|
*/
|
void fman_get_revision(struct fman *fman, struct fman_rev_info *rev_info)
|
{
|
u32 tmp;
|
|
tmp = ioread32be(&fman->fpm_regs->fm_ip_rev_1);
|
rev_info->major = (u8)((tmp & FPM_REV1_MAJOR_MASK) >>
|
FPM_REV1_MAJOR_SHIFT);
|
rev_info->minor = tmp & FPM_REV1_MINOR_MASK;
|
}
|
EXPORT_SYMBOL(fman_get_revision);
|
|
/**
|
* fman_get_qman_channel_id
|
* @fman: A Pointer to FMan device
|
* @port_id: Port id
|
*
|
* Get QMan channel ID associated to the Port id
|
*
|
* Return: QMan channel ID
|
*/
|
u32 fman_get_qman_channel_id(struct fman *fman, u32 port_id)
|
{
|
int i;
|
|
if (fman->state->rev_info.major >= 6) {
|
static const u32 port_ids[] = {
|
0x30, 0x31, 0x28, 0x29, 0x2a, 0x2b,
|
0x2c, 0x2d, 0x2, 0x3, 0x4, 0x5, 0x7, 0x7
|
};
|
|
for (i = 0; i < fman->state->num_of_qman_channels; i++) {
|
if (port_ids[i] == port_id)
|
break;
|
}
|
} else {
|
static const u32 port_ids[] = {
|
0x30, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x1,
|
0x2, 0x3, 0x4, 0x5, 0x7, 0x7
|
};
|
|
for (i = 0; i < fman->state->num_of_qman_channels; i++) {
|
if (port_ids[i] == port_id)
|
break;
|
}
|
}
|
|
if (i == fman->state->num_of_qman_channels)
|
return 0;
|
|
return fman->state->qman_channel_base + i;
|
}
|
EXPORT_SYMBOL(fman_get_qman_channel_id);
|
|
/**
|
* fman_get_mem_region
|
* @fman: A Pointer to FMan device
|
*
|
* Get FMan memory region
|
*
|
* Return: A structure with FMan memory region information
|
*/
|
struct resource *fman_get_mem_region(struct fman *fman)
|
{
|
return fman->state->res;
|
}
|
EXPORT_SYMBOL(fman_get_mem_region);
|
|
/* Bootargs defines */
|
/* Extra headroom for RX buffers - Default, min and max */
|
#define FSL_FM_RX_EXTRA_HEADROOM 64
|
#define FSL_FM_RX_EXTRA_HEADROOM_MIN 16
|
#define FSL_FM_RX_EXTRA_HEADROOM_MAX 384
|
|
/* Maximum frame length */
|
#define FSL_FM_MAX_FRAME_SIZE 1522
|
#define FSL_FM_MAX_POSSIBLE_FRAME_SIZE 9600
|
#define FSL_FM_MIN_POSSIBLE_FRAME_SIZE 64
|
|
/* Extra headroom for Rx buffers.
|
* FMan is instructed to allocate, on the Rx path, this amount of
|
* space at the beginning of a data buffer, beside the DPA private
|
* data area and the IC fields.
|
* Does not impact Tx buffer layout.
|
* Configurable from bootargs. 64 by default, it's needed on
|
* particular forwarding scenarios that add extra headers to the
|
* forwarded frame.
|
*/
|
static int fsl_fm_rx_extra_headroom = FSL_FM_RX_EXTRA_HEADROOM;
|
module_param(fsl_fm_rx_extra_headroom, int, 0);
|
MODULE_PARM_DESC(fsl_fm_rx_extra_headroom, "Extra headroom for Rx buffers");
|
|
/* Max frame size, across all interfaces.
|
* Configurable from bootargs, to avoid allocating oversized (socket)
|
* buffers when not using jumbo frames.
|
* Must be large enough to accommodate the network MTU, but small enough
|
* to avoid wasting skb memory.
|
*/
|
static int fsl_fm_max_frm = FSL_FM_MAX_FRAME_SIZE;
|
module_param(fsl_fm_max_frm, int, 0);
|
MODULE_PARM_DESC(fsl_fm_max_frm, "Maximum frame size, across all interfaces");
|
|
/**
|
* fman_get_max_frm
|
*
|
* Return: Max frame length configured in the FM driver
|
*/
|
u16 fman_get_max_frm(void)
|
{
|
static bool fm_check_mfl;
|
|
if (!fm_check_mfl) {
|
if (fsl_fm_max_frm > FSL_FM_MAX_POSSIBLE_FRAME_SIZE ||
|
fsl_fm_max_frm < FSL_FM_MIN_POSSIBLE_FRAME_SIZE) {
|
pr_warn("Invalid fsl_fm_max_frm value (%d) in bootargs, valid range is %d-%d. Falling back to the default (%d)\n",
|
fsl_fm_max_frm,
|
FSL_FM_MIN_POSSIBLE_FRAME_SIZE,
|
FSL_FM_MAX_POSSIBLE_FRAME_SIZE,
|
FSL_FM_MAX_FRAME_SIZE);
|
fsl_fm_max_frm = FSL_FM_MAX_FRAME_SIZE;
|
}
|
fm_check_mfl = true;
|
}
|
|
return fsl_fm_max_frm;
|
}
|
EXPORT_SYMBOL(fman_get_max_frm);
|
|
/**
|
* fman_get_rx_extra_headroom
|
*
|
* Return: Extra headroom size configured in the FM driver
|
*/
|
int fman_get_rx_extra_headroom(void)
|
{
|
static bool fm_check_rx_extra_headroom;
|
|
if (!fm_check_rx_extra_headroom) {
|
if (fsl_fm_rx_extra_headroom > FSL_FM_RX_EXTRA_HEADROOM_MAX ||
|
fsl_fm_rx_extra_headroom < FSL_FM_RX_EXTRA_HEADROOM_MIN) {
|
pr_warn("Invalid fsl_fm_rx_extra_headroom value (%d) in bootargs, valid range is %d-%d. Falling back to the default (%d)\n",
|
fsl_fm_rx_extra_headroom,
|
FSL_FM_RX_EXTRA_HEADROOM_MIN,
|
FSL_FM_RX_EXTRA_HEADROOM_MAX,
|
FSL_FM_RX_EXTRA_HEADROOM);
|
fsl_fm_rx_extra_headroom = FSL_FM_RX_EXTRA_HEADROOM;
|
}
|
|
fm_check_rx_extra_headroom = true;
|
fsl_fm_rx_extra_headroom = ALIGN(fsl_fm_rx_extra_headroom, 16);
|
}
|
|
return fsl_fm_rx_extra_headroom;
|
}
|
EXPORT_SYMBOL(fman_get_rx_extra_headroom);
|
|
/**
|
* fman_bind
|
* @fm_dev: FMan OF device pointer
|
*
|
* Bind to a specific FMan device.
|
*
|
* Allowed only after the port was created.
|
*
|
* Return: A pointer to the FMan device
|
*/
|
struct fman *fman_bind(struct device *fm_dev)
|
{
|
return (struct fman *)(dev_get_drvdata(get_device(fm_dev)));
|
}
|
EXPORT_SYMBOL(fman_bind);
|
|
#ifdef CONFIG_DPAA_ERRATUM_A050385
|
bool fman_has_errata_a050385(void)
|
{
|
return fman_has_err_a050385;
|
}
|
EXPORT_SYMBOL(fman_has_errata_a050385);
|
#endif
|
|
static irqreturn_t fman_err_irq(int irq, void *handle)
|
{
|
struct fman *fman = (struct fman *)handle;
|
u32 pending;
|
struct fman_fpm_regs __iomem *fpm_rg;
|
irqreturn_t single_ret, ret = IRQ_NONE;
|
|
if (!is_init_done(fman->cfg))
|
return IRQ_NONE;
|
|
fpm_rg = fman->fpm_regs;
|
|
/* error interrupts */
|
pending = ioread32be(&fpm_rg->fm_epi);
|
if (!pending)
|
return IRQ_NONE;
|
|
if (pending & ERR_INTR_EN_BMI) {
|
single_ret = bmi_err_event(fman);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_QMI) {
|
single_ret = qmi_err_event(fman);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_FPM) {
|
single_ret = fpm_err_event(fman);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_DMA) {
|
single_ret = dma_err_event(fman);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_MURAM) {
|
single_ret = muram_err_intr(fman);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
|
/* MAC error interrupts */
|
if (pending & ERR_INTR_EN_MAC0) {
|
single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 0);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_MAC1) {
|
single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 1);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_MAC2) {
|
single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 2);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_MAC3) {
|
single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 3);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_MAC4) {
|
single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 4);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_MAC5) {
|
single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 5);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_MAC6) {
|
single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 6);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_MAC7) {
|
single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 7);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_MAC8) {
|
single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 8);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & ERR_INTR_EN_MAC9) {
|
single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 9);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
|
return ret;
|
}
|
|
static irqreturn_t fman_irq(int irq, void *handle)
|
{
|
struct fman *fman = (struct fman *)handle;
|
u32 pending;
|
struct fman_fpm_regs __iomem *fpm_rg;
|
irqreturn_t single_ret, ret = IRQ_NONE;
|
|
if (!is_init_done(fman->cfg))
|
return IRQ_NONE;
|
|
fpm_rg = fman->fpm_regs;
|
|
/* normal interrupts */
|
pending = ioread32be(&fpm_rg->fm_npi);
|
if (!pending)
|
return IRQ_NONE;
|
|
if (pending & INTR_EN_QMI) {
|
single_ret = qmi_event(fman);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
|
/* MAC interrupts */
|
if (pending & INTR_EN_MAC0) {
|
single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 0);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & INTR_EN_MAC1) {
|
single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 1);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & INTR_EN_MAC2) {
|
single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 2);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & INTR_EN_MAC3) {
|
single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 3);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & INTR_EN_MAC4) {
|
single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 4);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & INTR_EN_MAC5) {
|
single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 5);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & INTR_EN_MAC6) {
|
single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 6);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & INTR_EN_MAC7) {
|
single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 7);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & INTR_EN_MAC8) {
|
single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 8);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
if (pending & INTR_EN_MAC9) {
|
single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 9);
|
if (single_ret == IRQ_HANDLED)
|
ret = IRQ_HANDLED;
|
}
|
|
return ret;
|
}
|
|
static const struct of_device_id fman_muram_match[] = {
|
{
|
.compatible = "fsl,fman-muram"},
|
{}
|
};
|
MODULE_DEVICE_TABLE(of, fman_muram_match);
|
|
static struct fman *read_dts_node(struct platform_device *of_dev)
|
{
|
struct fman *fman;
|
struct device_node *fm_node, *muram_node;
|
struct resource *res;
|
u32 val, range[2];
|
int err, irq;
|
struct clk *clk;
|
u32 clk_rate;
|
phys_addr_t phys_base_addr;
|
resource_size_t mem_size;
|
|
fman = kzalloc(sizeof(*fman), GFP_KERNEL);
|
if (!fman)
|
return NULL;
|
|
fm_node = of_node_get(of_dev->dev.of_node);
|
|
err = of_property_read_u32(fm_node, "cell-index", &val);
|
if (err) {
|
dev_err(&of_dev->dev, "%s: failed to read cell-index for %pOF\n",
|
__func__, fm_node);
|
goto fman_node_put;
|
}
|
fman->dts_params.id = (u8)val;
|
|
/* Get the FM interrupt */
|
res = platform_get_resource(of_dev, IORESOURCE_IRQ, 0);
|
if (!res) {
|
dev_err(&of_dev->dev, "%s: Can't get FMan IRQ resource\n",
|
__func__);
|
goto fman_node_put;
|
}
|
irq = res->start;
|
|
/* Get the FM error interrupt */
|
res = platform_get_resource(of_dev, IORESOURCE_IRQ, 1);
|
if (!res) {
|
dev_err(&of_dev->dev, "%s: Can't get FMan Error IRQ resource\n",
|
__func__);
|
goto fman_node_put;
|
}
|
fman->dts_params.err_irq = res->start;
|
|
/* Get the FM address */
|
res = platform_get_resource(of_dev, IORESOURCE_MEM, 0);
|
if (!res) {
|
dev_err(&of_dev->dev, "%s: Can't get FMan memory resource\n",
|
__func__);
|
goto fman_node_put;
|
}
|
|
phys_base_addr = res->start;
|
mem_size = resource_size(res);
|
|
clk = of_clk_get(fm_node, 0);
|
if (IS_ERR(clk)) {
|
dev_err(&of_dev->dev, "%s: Failed to get FM%d clock structure\n",
|
__func__, fman->dts_params.id);
|
goto fman_node_put;
|
}
|
|
clk_rate = clk_get_rate(clk);
|
if (!clk_rate) {
|
dev_err(&of_dev->dev, "%s: Failed to determine FM%d clock rate\n",
|
__func__, fman->dts_params.id);
|
goto fman_node_put;
|
}
|
/* Rounding to MHz */
|
fman->dts_params.clk_freq = DIV_ROUND_UP(clk_rate, 1000000);
|
|
err = of_property_read_u32_array(fm_node, "fsl,qman-channel-range",
|
&range[0], 2);
|
if (err) {
|
dev_err(&of_dev->dev, "%s: failed to read fsl,qman-channel-range for %pOF\n",
|
__func__, fm_node);
|
goto fman_node_put;
|
}
|
fman->dts_params.qman_channel_base = range[0];
|
fman->dts_params.num_of_qman_channels = range[1];
|
|
/* Get the MURAM base address and size */
|
muram_node = of_find_matching_node(fm_node, fman_muram_match);
|
if (!muram_node) {
|
dev_err(&of_dev->dev, "%s: could not find MURAM node\n",
|
__func__);
|
goto fman_free;
|
}
|
|
err = of_address_to_resource(muram_node, 0,
|
&fman->dts_params.muram_res);
|
if (err) {
|
of_node_put(muram_node);
|
dev_err(&of_dev->dev, "%s: of_address_to_resource() = %d\n",
|
__func__, err);
|
goto fman_free;
|
}
|
|
of_node_put(muram_node);
|
|
err = devm_request_irq(&of_dev->dev, irq, fman_irq, IRQF_SHARED,
|
"fman", fman);
|
if (err < 0) {
|
dev_err(&of_dev->dev, "%s: irq %d allocation failed (error = %d)\n",
|
__func__, irq, err);
|
goto fman_free;
|
}
|
|
if (fman->dts_params.err_irq != 0) {
|
err = devm_request_irq(&of_dev->dev, fman->dts_params.err_irq,
|
fman_err_irq, IRQF_SHARED,
|
"fman-err", fman);
|
if (err < 0) {
|
dev_err(&of_dev->dev, "%s: irq %d allocation failed (error = %d)\n",
|
__func__, fman->dts_params.err_irq, err);
|
goto fman_free;
|
}
|
}
|
|
fman->dts_params.res =
|
devm_request_mem_region(&of_dev->dev, phys_base_addr,
|
mem_size, "fman");
|
if (!fman->dts_params.res) {
|
dev_err(&of_dev->dev, "%s: request_mem_region() failed\n",
|
__func__);
|
goto fman_free;
|
}
|
|
fman->dts_params.base_addr =
|
devm_ioremap(&of_dev->dev, phys_base_addr, mem_size);
|
if (!fman->dts_params.base_addr) {
|
dev_err(&of_dev->dev, "%s: devm_ioremap() failed\n", __func__);
|
goto fman_free;
|
}
|
|
fman->dev = &of_dev->dev;
|
|
err = of_platform_populate(fm_node, NULL, NULL, &of_dev->dev);
|
if (err) {
|
dev_err(&of_dev->dev, "%s: of_platform_populate() failed\n",
|
__func__);
|
goto fman_free;
|
}
|
|
#ifdef CONFIG_DPAA_ERRATUM_A050385
|
fman_has_err_a050385 =
|
of_property_read_bool(fm_node, "fsl,erratum-a050385");
|
#endif
|
|
return fman;
|
|
fman_node_put:
|
of_node_put(fm_node);
|
fman_free:
|
kfree(fman);
|
return NULL;
|
}
|
|
static int fman_probe(struct platform_device *of_dev)
|
{
|
struct fman *fman;
|
struct device *dev;
|
int err;
|
|
dev = &of_dev->dev;
|
|
fman = read_dts_node(of_dev);
|
if (!fman)
|
return -EIO;
|
|
err = fman_config(fman);
|
if (err) {
|
dev_err(dev, "%s: FMan config failed\n", __func__);
|
return -EINVAL;
|
}
|
|
if (fman_init(fman) != 0) {
|
dev_err(dev, "%s: FMan init failed\n", __func__);
|
return -EINVAL;
|
}
|
|
if (fman->dts_params.err_irq == 0) {
|
fman_set_exception(fman, FMAN_EX_DMA_BUS_ERROR, false);
|
fman_set_exception(fman, FMAN_EX_DMA_READ_ECC, false);
|
fman_set_exception(fman, FMAN_EX_DMA_SYSTEM_WRITE_ECC, false);
|
fman_set_exception(fman, FMAN_EX_DMA_FM_WRITE_ECC, false);
|
fman_set_exception(fman, FMAN_EX_DMA_SINGLE_PORT_ECC, false);
|
fman_set_exception(fman, FMAN_EX_FPM_STALL_ON_TASKS, false);
|
fman_set_exception(fman, FMAN_EX_FPM_SINGLE_ECC, false);
|
fman_set_exception(fman, FMAN_EX_FPM_DOUBLE_ECC, false);
|
fman_set_exception(fman, FMAN_EX_QMI_SINGLE_ECC, false);
|
fman_set_exception(fman, FMAN_EX_QMI_DOUBLE_ECC, false);
|
fman_set_exception(fman,
|
FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID, false);
|
fman_set_exception(fman, FMAN_EX_BMI_LIST_RAM_ECC, false);
|
fman_set_exception(fman, FMAN_EX_BMI_STORAGE_PROFILE_ECC,
|
false);
|
fman_set_exception(fman, FMAN_EX_BMI_STATISTICS_RAM_ECC, false);
|
fman_set_exception(fman, FMAN_EX_BMI_DISPATCH_RAM_ECC, false);
|
}
|
|
dev_set_drvdata(dev, fman);
|
|
dev_dbg(dev, "FMan%d probed\n", fman->dts_params.id);
|
|
return 0;
|
}
|
|
static const struct of_device_id fman_match[] = {
|
{
|
.compatible = "fsl,fman"},
|
{}
|
};
|
|
MODULE_DEVICE_TABLE(of, fman_match);
|
|
static struct platform_driver fman_driver = {
|
.driver = {
|
.name = "fsl-fman",
|
.of_match_table = fman_match,
|
},
|
.probe = fman_probe,
|
};
|
|
static int __init fman_load(void)
|
{
|
int err;
|
|
pr_debug("FSL DPAA FMan driver\n");
|
|
err = platform_driver_register(&fman_driver);
|
if (err < 0)
|
pr_err("Error, platform_driver_register() = %d\n", err);
|
|
return err;
|
}
|
module_init(fman_load);
|
|
static void __exit fman_unload(void)
|
{
|
platform_driver_unregister(&fman_driver);
|
}
|
module_exit(fman_unload);
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
MODULE_DESCRIPTION("Freescale DPAA Frame Manager driver");
|
