/* * QEMU model of Xilinx Versal's OSPI controller. * * Copyright (c) 2021 Xilinx Inc. * Written by Francisco Iglesias * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "qemu/osdep.h" #include "hw/sysbus.h" #include "migration/vmstate.h" #include "hw/qdev-properties.h" #include "qemu/bitops.h" #include "qemu/log.h" #include "hw/irq.h" #include "hw/ssi/xlnx-versal-ospi.h" #ifndef XILINX_VERSAL_OSPI_ERR_DEBUG #define XILINX_VERSAL_OSPI_ERR_DEBUG 0 #endif REG32(CONFIG_REG, 0x0) FIELD(CONFIG_REG, IDLE_FLD, 31, 1) FIELD(CONFIG_REG, DUAL_BYTE_OPCODE_EN_FLD, 30, 1) FIELD(CONFIG_REG, CRC_ENABLE_FLD, 29, 1) FIELD(CONFIG_REG, CONFIG_RESV2_FLD, 26, 3) FIELD(CONFIG_REG, PIPELINE_PHY_FLD, 25, 1) FIELD(CONFIG_REG, ENABLE_DTR_PROTOCOL_FLD, 24, 1) FIELD(CONFIG_REG, ENABLE_AHB_DECODER_FLD, 23, 1) FIELD(CONFIG_REG, MSTR_BAUD_DIV_FLD, 19, 4) FIELD(CONFIG_REG, ENTER_XIP_MODE_IMM_FLD, 18, 1) FIELD(CONFIG_REG, ENTER_XIP_MODE_FLD, 17, 1) FIELD(CONFIG_REG, ENB_AHB_ADDR_REMAP_FLD, 16, 1) FIELD(CONFIG_REG, ENB_DMA_IF_FLD, 15, 1) FIELD(CONFIG_REG, WR_PROT_FLASH_FLD, 14, 1) FIELD(CONFIG_REG, PERIPH_CS_LINES_FLD, 10, 4) FIELD(CONFIG_REG, PERIPH_SEL_DEC_FLD, 9, 1) FIELD(CONFIG_REG, ENB_LEGACY_IP_MODE_FLD, 8, 1) FIELD(CONFIG_REG, ENB_DIR_ACC_CTLR_FLD, 7, 1) FIELD(CONFIG_REG, RESET_CFG_FLD, 6, 1) FIELD(CONFIG_REG, RESET_PIN_FLD, 5, 1) FIELD(CONFIG_REG, HOLD_PIN_FLD, 4, 1) FIELD(CONFIG_REG, PHY_MODE_ENABLE_FLD, 3, 1) FIELD(CONFIG_REG, SEL_CLK_PHASE_FLD, 2, 1) FIELD(CONFIG_REG, SEL_CLK_POL_FLD, 1, 1) FIELD(CONFIG_REG, ENB_SPI_FLD, 0, 1) REG32(DEV_INSTR_RD_CONFIG_REG, 0x4) FIELD(DEV_INSTR_RD_CONFIG_REG, RD_INSTR_RESV5_FLD, 29, 3) FIELD(DEV_INSTR_RD_CONFIG_REG, DUMMY_RD_CLK_CYCLES_FLD, 24, 5) FIELD(DEV_INSTR_RD_CONFIG_REG, RD_INSTR_RESV4_FLD, 21, 3) FIELD(DEV_INSTR_RD_CONFIG_REG, MODE_BIT_ENABLE_FLD, 20, 1) FIELD(DEV_INSTR_RD_CONFIG_REG, RD_INSTR_RESV3_FLD, 18, 2) FIELD(DEV_INSTR_RD_CONFIG_REG, DATA_XFER_TYPE_EXT_MODE_FLD, 16, 2) FIELD(DEV_INSTR_RD_CONFIG_REG, RD_INSTR_RESV2_FLD, 14, 2) FIELD(DEV_INSTR_RD_CONFIG_REG, ADDR_XFER_TYPE_STD_MODE_FLD, 12, 2) FIELD(DEV_INSTR_RD_CONFIG_REG, PRED_DIS_FLD, 11, 1) FIELD(DEV_INSTR_RD_CONFIG_REG, DDR_EN_FLD, 10, 1) FIELD(DEV_INSTR_RD_CONFIG_REG, INSTR_TYPE_FLD, 8, 2) FIELD(DEV_INSTR_RD_CONFIG_REG, RD_OPCODE_NON_XIP_FLD, 0, 8) REG32(DEV_INSTR_WR_CONFIG_REG, 0x8) FIELD(DEV_INSTR_WR_CONFIG_REG, WR_INSTR_RESV4_FLD, 29, 3) FIELD(DEV_INSTR_WR_CONFIG_REG, DUMMY_WR_CLK_CYCLES_FLD, 24, 5) FIELD(DEV_INSTR_WR_CONFIG_REG, WR_INSTR_RESV3_FLD, 18, 6) FIELD(DEV_INSTR_WR_CONFIG_REG, DATA_XFER_TYPE_EXT_MODE_FLD, 16, 2) FIELD(DEV_INSTR_WR_CONFIG_REG, WR_INSTR_RESV2_FLD, 14, 2) FIELD(DEV_INSTR_WR_CONFIG_REG, ADDR_XFER_TYPE_STD_MODE_FLD, 12, 2) FIELD(DEV_INSTR_WR_CONFIG_REG, WR_INSTR_RESV1_FLD, 9, 3) FIELD(DEV_INSTR_WR_CONFIG_REG, WEL_DIS_FLD, 8, 1) FIELD(DEV_INSTR_WR_CONFIG_REG, WR_OPCODE_FLD, 0, 8) REG32(DEV_DELAY_REG, 0xc) FIELD(DEV_DELAY_REG, D_NSS_FLD, 24, 8) FIELD(DEV_DELAY_REG, D_BTWN_FLD, 16, 8) FIELD(DEV_DELAY_REG, D_AFTER_FLD, 8, 8) FIELD(DEV_DELAY_REG, D_INIT_FLD, 0, 8) REG32(RD_DATA_CAPTURE_REG, 0x10) FIELD(RD_DATA_CAPTURE_REG, RD_DATA_RESV3_FLD, 20, 12) FIELD(RD_DATA_CAPTURE_REG, DDR_READ_DELAY_FLD, 16, 4) FIELD(RD_DATA_CAPTURE_REG, RD_DATA_RESV2_FLD, 9, 7) FIELD(RD_DATA_CAPTURE_REG, DQS_ENABLE_FLD, 8, 1) FIELD(RD_DATA_CAPTURE_REG, RD_DATA_RESV1_FLD, 6, 2) FIELD(RD_DATA_CAPTURE_REG, SAMPLE_EDGE_SEL_FLD, 5, 1) FIELD(RD_DATA_CAPTURE_REG, DELAY_FLD, 1, 4) FIELD(RD_DATA_CAPTURE_REG, BYPASS_FLD, 0, 1) REG32(DEV_SIZE_CONFIG_REG, 0x14) FIELD(DEV_SIZE_CONFIG_REG, DEV_SIZE_RESV_FLD, 29, 3) FIELD(DEV_SIZE_CONFIG_REG, MEM_SIZE_ON_CS3_FLD, 27, 2) FIELD(DEV_SIZE_CONFIG_REG, MEM_SIZE_ON_CS2_FLD, 25, 2) FIELD(DEV_SIZE_CONFIG_REG, MEM_SIZE_ON_CS1_FLD, 23, 2) FIELD(DEV_SIZE_CONFIG_REG, MEM_SIZE_ON_CS0_FLD, 21, 2) FIELD(DEV_SIZE_CONFIG_REG, BYTES_PER_SUBSECTOR_FLD, 16, 5) FIELD(DEV_SIZE_CONFIG_REG, BYTES_PER_DEVICE_PAGE_FLD, 4, 12) FIELD(DEV_SIZE_CONFIG_REG, NUM_ADDR_BYTES_FLD, 0, 4) REG32(SRAM_PARTITION_CFG_REG, 0x18) FIELD(SRAM_PARTITION_CFG_REG, SRAM_PARTITION_RESV_FLD, 8, 24) FIELD(SRAM_PARTITION_CFG_REG, ADDR_FLD, 0, 8) REG32(IND_AHB_ADDR_TRIGGER_REG, 0x1c) REG32(DMA_PERIPH_CONFIG_REG, 0x20) FIELD(DMA_PERIPH_CONFIG_REG, DMA_PERIPH_RESV2_FLD, 12, 20) FIELD(DMA_PERIPH_CONFIG_REG, NUM_BURST_REQ_BYTES_FLD, 8, 4) FIELD(DMA_PERIPH_CONFIG_REG, DMA_PERIPH_RESV1_FLD, 4, 4) FIELD(DMA_PERIPH_CONFIG_REG, NUM_SINGLE_REQ_BYTES_FLD, 0, 4) REG32(REMAP_ADDR_REG, 0x24) REG32(MODE_BIT_CONFIG_REG, 0x28) FIELD(MODE_BIT_CONFIG_REG, RX_CRC_DATA_LOW_FLD, 24, 8) FIELD(MODE_BIT_CONFIG_REG, RX_CRC_DATA_UP_FLD, 16, 8) FIELD(MODE_BIT_CONFIG_REG, CRC_OUT_ENABLE_FLD, 15, 1) FIELD(MODE_BIT_CONFIG_REG, MODE_BIT_RESV1_FLD, 11, 4) FIELD(MODE_BIT_CONFIG_REG, CHUNK_SIZE_FLD, 8, 3) FIELD(MODE_BIT_CONFIG_REG, MODE_FLD, 0, 8) REG32(SRAM_FILL_REG, 0x2c) FIELD(SRAM_FILL_REG, SRAM_FILL_INDAC_WRITE_FLD, 16, 16) FIELD(SRAM_FILL_REG, SRAM_FILL_INDAC_READ_FLD, 0, 16) REG32(TX_THRESH_REG, 0x30) FIELD(TX_THRESH_REG, TX_THRESH_RESV_FLD, 5, 27) FIELD(TX_THRESH_REG, LEVEL_FLD, 0, 5) REG32(RX_THRESH_REG, 0x34) FIELD(RX_THRESH_REG, RX_THRESH_RESV_FLD, 5, 27) FIELD(RX_THRESH_REG, LEVEL_FLD, 0, 5) REG32(WRITE_COMPLETION_CTRL_REG, 0x38) FIELD(WRITE_COMPLETION_CTRL_REG, POLL_REP_DELAY_FLD, 24, 8) FIELD(WRITE_COMPLETION_CTRL_REG, POLL_COUNT_FLD, 16, 8) FIELD(WRITE_COMPLETION_CTRL_REG, ENABLE_POLLING_EXP_FLD, 15, 1) FIELD(WRITE_COMPLETION_CTRL_REG, DISABLE_POLLING_FLD, 14, 1) FIELD(WRITE_COMPLETION_CTRL_REG, POLLING_POLARITY_FLD, 13, 1) FIELD(WRITE_COMPLETION_CTRL_REG, WR_COMP_CTRL_RESV1_FLD, 12, 1) FIELD(WRITE_COMPLETION_CTRL_REG, POLLING_ADDR_EN_FLD, 11, 1) FIELD(WRITE_COMPLETION_CTRL_REG, POLLING_BIT_INDEX_FLD, 8, 3) FIELD(WRITE_COMPLETION_CTRL_REG, OPCODE_FLD, 0, 8) REG32(NO_OF_POLLS_BEF_EXP_REG, 0x3c) REG32(IRQ_STATUS_REG, 0x40) FIELD(IRQ_STATUS_REG, IRQ_STAT_RESV_FLD, 20, 12) FIELD(IRQ_STATUS_REG, ECC_FAIL_FLD, 19, 1) FIELD(IRQ_STATUS_REG, TX_CRC_CHUNK_BRK_FLD, 18, 1) FIELD(IRQ_STATUS_REG, RX_CRC_DATA_VAL_FLD, 17, 1) FIELD(IRQ_STATUS_REG, RX_CRC_DATA_ERR_FLD, 16, 1) FIELD(IRQ_STATUS_REG, IRQ_STAT_RESV1_FLD, 15, 1) FIELD(IRQ_STATUS_REG, STIG_REQ_INT_FLD, 14, 1) FIELD(IRQ_STATUS_REG, POLL_EXP_INT_FLD, 13, 1) FIELD(IRQ_STATUS_REG, INDRD_SRAM_FULL_FLD, 12, 1) FIELD(IRQ_STATUS_REG, RX_FIFO_FULL_FLD, 11, 1) FIELD(IRQ_STATUS_REG, RX_FIFO_NOT_EMPTY_FLD, 10, 1) FIELD(IRQ_STATUS_REG, TX_FIFO_FULL_FLD, 9, 1) FIELD(IRQ_STATUS_REG, TX_FIFO_NOT_FULL_FLD, 8, 1) FIELD(IRQ_STATUS_REG, RECV_OVERFLOW_FLD, 7, 1) FIELD(IRQ_STATUS_REG, INDIRECT_XFER_LEVEL_BREACH_FLD, 6, 1) FIELD(IRQ_STATUS_REG, ILLEGAL_ACCESS_DET_FLD, 5, 1) FIELD(IRQ_STATUS_REG, PROT_WR_ATTEMPT_FLD, 4, 1) FIELD(IRQ_STATUS_REG, INDIRECT_TRANSFER_REJECT_FLD, 3, 1) FIELD(IRQ_STATUS_REG, INDIRECT_OP_DONE_FLD, 2, 1) FIELD(IRQ_STATUS_REG, UNDERFLOW_DET_FLD, 1, 1) FIELD(IRQ_STATUS_REG, MODE_M_FAIL_FLD, 0, 1) REG32(IRQ_MASK_REG, 0x44) FIELD(IRQ_MASK_REG, IRQ_MASK_RESV_FLD, 20, 12) FIELD(IRQ_MASK_REG, ECC_FAIL_MASK_FLD, 19, 1) FIELD(IRQ_MASK_REG, TX_CRC_CHUNK_BRK_MASK_FLD, 18, 1) FIELD(IRQ_MASK_REG, RX_CRC_DATA_VAL_MASK_FLD, 17, 1) FIELD(IRQ_MASK_REG, RX_CRC_DATA_ERR_MASK_FLD, 16, 1) FIELD(IRQ_MASK_REG, IRQ_MASK_RESV1_FLD, 15, 1) FIELD(IRQ_MASK_REG, STIG_REQ_MASK_FLD, 14, 1) FIELD(IRQ_MASK_REG, POLL_EXP_INT_MASK_FLD, 13, 1) FIELD(IRQ_MASK_REG, INDRD_SRAM_FULL_MASK_FLD, 12, 1) FIELD(IRQ_MASK_REG, RX_FIFO_FULL_MASK_FLD, 11, 1) FIELD(IRQ_MASK_REG, RX_FIFO_NOT_EMPTY_MASK_FLD, 10, 1) FIELD(IRQ_MASK_REG, TX_FIFO_FULL_MASK_FLD, 9, 1) FIELD(IRQ_MASK_REG, TX_FIFO_NOT_FULL_MASK_FLD, 8, 1) FIELD(IRQ_MASK_REG, RECV_OVERFLOW_MASK_FLD, 7, 1) FIELD(IRQ_MASK_REG, INDIRECT_XFER_LEVEL_BREACH_MASK_FLD, 6, 1) FIELD(IRQ_MASK_REG, ILLEGAL_ACCESS_DET_MASK_FLD, 5, 1) FIELD(IRQ_MASK_REG, PROT_WR_ATTEMPT_MASK_FLD, 4, 1) FIELD(IRQ_MASK_REG, INDIRECT_TRANSFER_REJECT_MASK_FLD, 3, 1) FIELD(IRQ_MASK_REG, INDIRECT_OP_DONE_MASK_FLD, 2, 1) FIELD(IRQ_MASK_REG, UNDERFLOW_DET_MASK_FLD, 1, 1) FIELD(IRQ_MASK_REG, MODE_M_FAIL_MASK_FLD, 0, 1) REG32(LOWER_WR_PROT_REG, 0x50) REG32(UPPER_WR_PROT_REG, 0x54) REG32(WR_PROT_CTRL_REG, 0x58) FIELD(WR_PROT_CTRL_REG, WR_PROT_CTRL_RESV_FLD, 2, 30) FIELD(WR_PROT_CTRL_REG, ENB_FLD, 1, 1) FIELD(WR_PROT_CTRL_REG, INV_FLD, 0, 1) REG32(INDIRECT_READ_XFER_CTRL_REG, 0x60) FIELD(INDIRECT_READ_XFER_CTRL_REG, INDIR_RD_XFER_RESV_FLD, 8, 24) FIELD(INDIRECT_READ_XFER_CTRL_REG, NUM_IND_OPS_DONE_FLD, 6, 2) FIELD(INDIRECT_READ_XFER_CTRL_REG, IND_OPS_DONE_STATUS_FLD, 5, 1) FIELD(INDIRECT_READ_XFER_CTRL_REG, RD_QUEUED_FLD, 4, 1) FIELD(INDIRECT_READ_XFER_CTRL_REG, SRAM_FULL_FLD, 3, 1) FIELD(INDIRECT_READ_XFER_CTRL_REG, RD_STATUS_FLD, 2, 1) FIELD(INDIRECT_READ_XFER_CTRL_REG, CANCEL_FLD, 1, 1) FIELD(INDIRECT_READ_XFER_CTRL_REG, START_FLD, 0, 1) REG32(INDIRECT_READ_XFER_WATERMARK_REG, 0x64) REG32(INDIRECT_READ_XFER_START_REG, 0x68) REG32(INDIRECT_READ_XFER_NUM_BYTES_REG, 0x6c) REG32(INDIRECT_WRITE_XFER_CTRL_REG, 0x70) FIELD(INDIRECT_WRITE_XFER_CTRL_REG, INDIR_WR_XFER_RESV2_FLD, 8, 24) FIELD(INDIRECT_WRITE_XFER_CTRL_REG, NUM_IND_OPS_DONE_FLD, 6, 2) FIELD(INDIRECT_WRITE_XFER_CTRL_REG, IND_OPS_DONE_STATUS_FLD, 5, 1) FIELD(INDIRECT_WRITE_XFER_CTRL_REG, WR_QUEUED_FLD, 4, 1) FIELD(INDIRECT_WRITE_XFER_CTRL_REG, INDIR_WR_XFER_RESV1_FLD, 3, 1) FIELD(INDIRECT_WRITE_XFER_CTRL_REG, WR_STATUS_FLD, 2, 1) FIELD(INDIRECT_WRITE_XFER_CTRL_REG, CANCEL_FLD, 1, 1) FIELD(INDIRECT_WRITE_XFER_CTRL_REG, START_FLD, 0, 1) REG32(INDIRECT_WRITE_XFER_WATERMARK_REG, 0x74) REG32(INDIRECT_WRITE_XFER_START_REG, 0x78) REG32(INDIRECT_WRITE_XFER_NUM_BYTES_REG, 0x7c) REG32(INDIRECT_TRIGGER_ADDR_RANGE_REG, 0x80) FIELD(INDIRECT_TRIGGER_ADDR_RANGE_REG, IND_RANGE_RESV1_FLD, 4, 28) FIELD(INDIRECT_TRIGGER_ADDR_RANGE_REG, IND_RANGE_WIDTH_FLD, 0, 4) REG32(FLASH_COMMAND_CTRL_MEM_REG, 0x8c) FIELD(FLASH_COMMAND_CTRL_MEM_REG, FLASH_COMMAND_CTRL_MEM_RESV1_FLD, 29, 3) FIELD(FLASH_COMMAND_CTRL_MEM_REG, MEM_BANK_ADDR_FLD, 20, 9) FIELD(FLASH_COMMAND_CTRL_MEM_REG, FLASH_COMMAND_CTRL_MEM_RESV2_FLD, 19, 1) FIELD(FLASH_COMMAND_CTRL_MEM_REG, NB_OF_STIG_READ_BYTES_FLD, 16, 3) FIELD(FLASH_COMMAND_CTRL_MEM_REG, MEM_BANK_READ_DATA_FLD, 8, 8) FIELD(FLASH_COMMAND_CTRL_MEM_REG, FLASH_COMMAND_CTRL_MEM_RESV3_FLD, 2, 6) FIELD(FLASH_COMMAND_CTRL_MEM_REG, MEM_BANK_REQ_IN_PROGRESS_FLD, 1, 1) FIELD(FLASH_COMMAND_CTRL_MEM_REG, TRIGGER_MEM_BANK_REQ_FLD, 0, 1) REG32(FLASH_CMD_CTRL_REG, 0x90) FIELD(FLASH_CMD_CTRL_REG, CMD_OPCODE_FLD, 24, 8) FIELD(FLASH_CMD_CTRL_REG, ENB_READ_DATA_FLD, 23, 1) FIELD(FLASH_CMD_CTRL_REG, NUM_RD_DATA_BYTES_FLD, 20, 3) FIELD(FLASH_CMD_CTRL_REG, ENB_COMD_ADDR_FLD, 19, 1) FIELD(FLASH_CMD_CTRL_REG, ENB_MODE_BIT_FLD, 18, 1) FIELD(FLASH_CMD_CTRL_REG, NUM_ADDR_BYTES_FLD, 16, 2) FIELD(FLASH_CMD_CTRL_REG, ENB_WRITE_DATA_FLD, 15, 1) FIELD(FLASH_CMD_CTRL_REG, NUM_WR_DATA_BYTES_FLD, 12, 3) FIELD(FLASH_CMD_CTRL_REG, NUM_DUMMY_CYCLES_FLD, 7, 5) FIELD(FLASH_CMD_CTRL_REG, FLASH_CMD_CTRL_RESV1_FLD, 3, 4) FIELD(FLASH_CMD_CTRL_REG, STIG_MEM_BANK_EN_FLD, 2, 1) FIELD(FLASH_CMD_CTRL_REG, CMD_EXEC_STATUS_FLD, 1, 1) FIELD(FLASH_CMD_CTRL_REG, CMD_EXEC_FLD, 0, 1) REG32(FLASH_CMD_ADDR_REG, 0x94) REG32(FLASH_RD_DATA_LOWER_REG, 0xa0) REG32(FLASH_RD_DATA_UPPER_REG, 0xa4) REG32(FLASH_WR_DATA_LOWER_REG, 0xa8) REG32(FLASH_WR_DATA_UPPER_REG, 0xac) REG32(POLLING_FLASH_STATUS_REG, 0xb0) FIELD(POLLING_FLASH_STATUS_REG, DEVICE_STATUS_RSVD_FLD2, 21, 11) FIELD(POLLING_FLASH_STATUS_REG, DEVICE_STATUS_NB_DUMMY, 16, 5) FIELD(POLLING_FLASH_STATUS_REG, DEVICE_STATUS_RSVD_FLD1, 9, 7) FIELD(POLLING_FLASH_STATUS_REG, DEVICE_STATUS_VALID_FLD, 8, 1) FIELD(POLLING_FLASH_STATUS_REG, DEVICE_STATUS_FLD, 0, 8) REG32(PHY_CONFIGURATION_REG, 0xb4) FIELD(PHY_CONFIGURATION_REG, PHY_CONFIG_RESYNC_FLD, 31, 1) FIELD(PHY_CONFIGURATION_REG, PHY_CONFIG_RESET_FLD, 30, 1) FIELD(PHY_CONFIGURATION_REG, PHY_CONFIG_RX_DLL_BYPASS_FLD, 29, 1) FIELD(PHY_CONFIGURATION_REG, PHY_CONFIG_RESV2_FLD, 23, 6) FIELD(PHY_CONFIGURATION_REG, PHY_CONFIG_TX_DLL_DELAY_FLD, 16, 7) FIELD(PHY_CONFIGURATION_REG, PHY_CONFIG_RESV1_FLD, 7, 9) FIELD(PHY_CONFIGURATION_REG, PHY_CONFIG_RX_DLL_DELAY_FLD, 0, 7) REG32(PHY_MASTER_CONTROL_REG, 0xb8) FIELD(PHY_MASTER_CONTROL_REG, PHY_MASTER_CONTROL_RESV3_FLD, 25, 7) FIELD(PHY_MASTER_CONTROL_REG, PHY_MASTER_LOCK_MODE_FLD, 24, 1) FIELD(PHY_MASTER_CONTROL_REG, PHY_MASTER_BYPASS_MODE_FLD, 23, 1) FIELD(PHY_MASTER_CONTROL_REG, PHY_MASTER_PHASE_DETECT_SELECTOR_FLD, 20, 3) FIELD(PHY_MASTER_CONTROL_REG, PHY_MASTER_CONTROL_RESV2_FLD, 19, 1) FIELD(PHY_MASTER_CONTROL_REG, PHY_MASTER_NB_INDICATIONS_FLD, 16, 3) FIELD(PHY_MASTER_CONTROL_REG, PHY_MASTER_CONTROL_RESV1_FLD, 7, 9) FIELD(PHY_MASTER_CONTROL_REG, PHY_MASTER_INITIAL_DELAY_FLD, 0, 7) REG32(DLL_OBSERVABLE_LOWER_REG, 0xbc) FIELD(DLL_OBSERVABLE_LOWER_REG, DLL_OBSERVABLE_LOWER_DLL_LOCK_INC_FLD, 24, 8) FIELD(DLL_OBSERVABLE_LOWER_REG, DLL_OBSERVABLE_LOWER_DLL_LOCK_DEC_FLD, 16, 8) FIELD(DLL_OBSERVABLE_LOWER_REG, DLL_OBSERVABLE_LOWER_LOOPBACK_LOCK_FLD, 15, 1) FIELD(DLL_OBSERVABLE_LOWER_REG, DLL_OBSERVABLE_LOWER_LOCK_VALUE_FLD, 8, 7) FIELD(DLL_OBSERVABLE_LOWER_REG, DLL_OBSERVABLE_LOWER_UNLOCK_COUNTER_FLD, 3, 5) FIELD(DLL_OBSERVABLE_LOWER_REG, DLL_OBSERVABLE_LOWER_LOCK_MODE_FLD, 1, 2) FIELD(DLL_OBSERVABLE_LOWER_REG, DLL_OBSERVABLE_LOWER_DLL_LOCK_FLD, 0, 1) REG32(DLL_OBSERVABLE_UPPER_REG, 0xc0) FIELD(DLL_OBSERVABLE_UPPER_REG, DLL_OBSERVABLE_UPPER_RESV2_FLD, 23, 9) FIELD(DLL_OBSERVABLE_UPPER_REG, DLL_OBSERVABLE_UPPER_TX_DECODER_OUTPUT_FLD, 16, 7) FIELD(DLL_OBSERVABLE_UPPER_REG, DLL_OBSERVABLE_UPPER_RESV1_FLD, 7, 9) FIELD(DLL_OBSERVABLE_UPPER_REG, DLL_OBSERVABLE__UPPER_RX_DECODER_OUTPUT_FLD, 0, 7) REG32(OPCODE_EXT_LOWER_REG, 0xe0) FIELD(OPCODE_EXT_LOWER_REG, EXT_READ_OPCODE_FLD, 24, 8) FIELD(OPCODE_EXT_LOWER_REG, EXT_WRITE_OPCODE_FLD, 16, 8) FIELD(OPCODE_EXT_LOWER_REG, EXT_POLL_OPCODE_FLD, 8, 8) FIELD(OPCODE_EXT_LOWER_REG, EXT_STIG_OPCODE_FLD, 0, 8) REG32(OPCODE_EXT_UPPER_REG, 0xe4) FIELD(OPCODE_EXT_UPPER_REG, WEL_OPCODE_FLD, 24, 8) FIELD(OPCODE_EXT_UPPER_REG, EXT_WEL_OPCODE_FLD, 16, 8) FIELD(OPCODE_EXT_UPPER_REG, OPCODE_EXT_UPPER_RESV1_FLD, 0, 16) REG32(MODULE_ID_REG, 0xfc) FIELD(MODULE_ID_REG, FIX_PATCH_FLD, 24, 8) FIELD(MODULE_ID_REG, MODULE_ID_FLD, 8, 16) FIELD(MODULE_ID_REG, MODULE_ID_RESV_FLD, 2, 6) FIELD(MODULE_ID_REG, CONF_FLD, 0, 2) #define RXFF_SZ 1024 #define TXFF_SZ 1024 #define MAX_RX_DEC_OUT 8 #define SZ_512MBIT (512 * 1024 * 1024) #define SZ_1GBIT (1024 * 1024 * 1024) #define SZ_2GBIT (2ULL * SZ_1GBIT) #define SZ_4GBIT (4ULL * SZ_1GBIT) #define IS_IND_DMA_START(op) (op->done_bytes == 0) /* * Bit field size of R_INDIRECT_WRITE_XFER_CTRL_REG_NUM_IND_OPS_DONE_FLD * is 2 bits, which can record max of 3 indac operations. */ #define IND_OPS_DONE_MAX 3 typedef enum { WREN = 0x6, } FlashCMD; static unsigned int ospi_stig_addr_len(XlnxVersalOspi *s) { /* Num address bytes is NUM_ADDR_BYTES_FLD + 1 */ return ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, NUM_ADDR_BYTES_FLD) + 1; } static unsigned int ospi_stig_wr_data_len(XlnxVersalOspi *s) { /* Num write data bytes is NUM_WR_DATA_BYTES_FLD + 1 */ return ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, NUM_WR_DATA_BYTES_FLD) + 1; } static unsigned int ospi_stig_rd_data_len(XlnxVersalOspi *s) { /* Num read data bytes is NUM_RD_DATA_BYTES_FLD + 1 */ return ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, NUM_RD_DATA_BYTES_FLD) + 1; } /* * Status bits in R_IRQ_STATUS_REG are set when the event occurs and the * interrupt is enabled in the mask register ([1] Section 2.3.17) */ static void set_irq(XlnxVersalOspi *s, uint32_t set_mask) { s->regs[R_IRQ_STATUS_REG] |= s->regs[R_IRQ_MASK_REG] & set_mask; } static void ospi_update_irq_line(XlnxVersalOspi *s) { qemu_set_irq(s->irq, !!(s->regs[R_IRQ_STATUS_REG] & s->regs[R_IRQ_MASK_REG])); } static uint8_t ospi_get_wr_opcode(XlnxVersalOspi *s) { return ARRAY_FIELD_EX32(s->regs, DEV_INSTR_WR_CONFIG_REG, WR_OPCODE_FLD); } static uint8_t ospi_get_rd_opcode(XlnxVersalOspi *s) { return ARRAY_FIELD_EX32(s->regs, DEV_INSTR_RD_CONFIG_REG, RD_OPCODE_NON_XIP_FLD); } static uint32_t ospi_get_num_addr_bytes(XlnxVersalOspi *s) { /* Num address bytes is NUM_ADDR_BYTES_FLD + 1 */ return ARRAY_FIELD_EX32(s->regs, DEV_SIZE_CONFIG_REG, NUM_ADDR_BYTES_FLD) + 1; } static void ospi_stig_membank_req(XlnxVersalOspi *s) { int idx = ARRAY_FIELD_EX32(s->regs, FLASH_COMMAND_CTRL_MEM_REG, MEM_BANK_ADDR_FLD); ARRAY_FIELD_DP32(s->regs, FLASH_COMMAND_CTRL_MEM_REG, MEM_BANK_READ_DATA_FLD, s->stig_membank[idx]); } static int ospi_stig_membank_rd_bytes(XlnxVersalOspi *s) { int rd_data_fld = ARRAY_FIELD_EX32(s->regs, FLASH_COMMAND_CTRL_MEM_REG, NB_OF_STIG_READ_BYTES_FLD); static const int sizes[6] = { 16, 32, 64, 128, 256, 512 }; return (rd_data_fld < 6) ? sizes[rd_data_fld] : 0; } static uint32_t ospi_get_page_sz(XlnxVersalOspi *s) { return ARRAY_FIELD_EX32(s->regs, DEV_SIZE_CONFIG_REG, BYTES_PER_DEVICE_PAGE_FLD); } static bool ospi_ind_rd_watermark_enabled(XlnxVersalOspi *s) { return s->regs[R_INDIRECT_READ_XFER_WATERMARK_REG]; } static void ind_op_advance(IndOp *op, unsigned int len) { op->done_bytes += len; assert(op->done_bytes <= op->num_bytes); if (op->done_bytes == op->num_bytes) { op->completed = true; } } static uint32_t ind_op_next_byte(IndOp *op) { return op->flash_addr + op->done_bytes; } static uint32_t ind_op_end_byte(IndOp *op) { return op->flash_addr + op->num_bytes; } static void ospi_ind_op_next(IndOp *op) { op[0] = op[1]; op[1].completed = true; } static void ind_op_setup(IndOp *op, uint32_t flash_addr, uint32_t num_bytes) { if (num_bytes & 0x3) { qemu_log_mask(LOG_GUEST_ERROR, "OSPI indirect op num bytes not word aligned\n"); } op->flash_addr = flash_addr; op->num_bytes = num_bytes; op->done_bytes = 0; op->completed = false; } static bool ospi_ind_op_completed(IndOp *op) { return op->completed; } static bool ospi_ind_op_all_completed(XlnxVersalOspi *s) { return s->rd_ind_op[0].completed && s->wr_ind_op[0].completed; } static void ospi_ind_op_cancel(IndOp *op) { op[0].completed = true; op[1].completed = true; } static bool ospi_ind_op_add(IndOp *op, Fifo8 *fifo, uint32_t flash_addr, uint32_t num_bytes) { /* Check if first indirect op has been completed */ if (op->completed) { fifo8_reset(fifo); ind_op_setup(op, flash_addr, num_bytes); return false; } /* Check if second indirect op has been completed */ op++; if (op->completed) { ind_op_setup(op, flash_addr, num_bytes); return false; } return true; } static void ospi_ind_op_queue_up_rd(XlnxVersalOspi *s) { uint32_t num_bytes = s->regs[R_INDIRECT_READ_XFER_NUM_BYTES_REG]; uint32_t flash_addr = s->regs[R_INDIRECT_READ_XFER_START_REG]; bool failed; failed = ospi_ind_op_add(s->rd_ind_op, &s->rx_sram, flash_addr, num_bytes); /* If two already queued set rd reject interrupt */ if (failed) { set_irq(s, R_IRQ_STATUS_REG_INDIRECT_TRANSFER_REJECT_FLD_MASK); } } static void ospi_ind_op_queue_up_wr(XlnxVersalOspi *s) { uint32_t num_bytes = s->regs[R_INDIRECT_WRITE_XFER_NUM_BYTES_REG]; uint32_t flash_addr = s->regs[R_INDIRECT_WRITE_XFER_START_REG]; bool failed; failed = ospi_ind_op_add(s->wr_ind_op, &s->tx_sram, flash_addr, num_bytes); /* If two already queued set rd reject interrupt */ if (failed) { set_irq(s, R_IRQ_STATUS_REG_INDIRECT_TRANSFER_REJECT_FLD_MASK); } } static uint64_t flash_sz(XlnxVersalOspi *s, unsigned int cs) { /* Flash sizes in MB */ static const uint64_t sizes[4] = { SZ_512MBIT / 8, SZ_1GBIT / 8, SZ_2GBIT / 8, SZ_4GBIT / 8 }; uint32_t v = s->regs[R_DEV_SIZE_CONFIG_REG]; v >>= cs * R_DEV_SIZE_CONFIG_REG_MEM_SIZE_ON_CS0_FLD_LENGTH; return sizes[FIELD_EX32(v, DEV_SIZE_CONFIG_REG, MEM_SIZE_ON_CS0_FLD)]; } static unsigned int ospi_get_block_sz(XlnxVersalOspi *s) { unsigned int block_fld = ARRAY_FIELD_EX32(s->regs, DEV_SIZE_CONFIG_REG, BYTES_PER_SUBSECTOR_FLD); return 1 << block_fld; } static unsigned int flash_blocks(XlnxVersalOspi *s, unsigned int cs) { unsigned int b_sz = ospi_get_block_sz(s); unsigned int f_sz = flash_sz(s, cs); return f_sz / b_sz; } static int ospi_ahb_decoder_cs(XlnxVersalOspi *s, hwaddr addr) { uint64_t end_addr = 0; int cs; for (cs = 0; cs < s->num_cs; cs++) { end_addr += flash_sz(s, cs); if (addr < end_addr) { break; } } if (cs == s->num_cs) { /* Address is out of range */ qemu_log_mask(LOG_GUEST_ERROR, "OSPI flash address does not fit in configuration\n"); return -1; } return cs; } static void ospi_ahb_decoder_enable_cs(XlnxVersalOspi *s, hwaddr addr) { int cs = ospi_ahb_decoder_cs(s, addr); if (cs >= 0) { for (int i = 0; i < s->num_cs; i++) { qemu_set_irq(s->cs_lines[i], cs != i); } } } static unsigned int single_cs(XlnxVersalOspi *s) { unsigned int field = ARRAY_FIELD_EX32(s->regs, CONFIG_REG, PERIPH_CS_LINES_FLD); /* * Below one liner is a trick that finds the rightmost zero and makes sure * all other bits are turned to 1. It is a variant of the 'Isolate the * rightmost 0-bit' trick found below at the time of writing: * * https://emre.me/computer-science/bit-manipulation-tricks/ * * 4'bXXX0 -> 4'b1110 * 4'bXX01 -> 4'b1101 * 4'bX011 -> 4'b1011 * 4'b0111 -> 4'b0111 * 4'b1111 -> 4'b1111 */ return (field | ~(field + 1)) & 0xf; } static void ospi_update_cs_lines(XlnxVersalOspi *s) { unsigned int all_cs; int i; if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, PERIPH_SEL_DEC_FLD)) { all_cs = ARRAY_FIELD_EX32(s->regs, CONFIG_REG, PERIPH_CS_LINES_FLD); } else { all_cs = single_cs(s); } for (i = 0; i < s->num_cs; i++) { bool cs = (all_cs >> i) & 1; qemu_set_irq(s->cs_lines[i], cs); } } static void ospi_dac_cs(XlnxVersalOspi *s, hwaddr addr) { if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENABLE_AHB_DECODER_FLD)) { ospi_ahb_decoder_enable_cs(s, addr); } else { ospi_update_cs_lines(s); } } static void ospi_disable_cs(XlnxVersalOspi *s) { int i; for (i = 0; i < s->num_cs; i++) { qemu_set_irq(s->cs_lines[i], 1); } } static void ospi_flush_txfifo(XlnxVersalOspi *s) { while (!fifo8_is_empty(&s->tx_fifo)) { uint32_t tx_rx = fifo8_pop(&s->tx_fifo); tx_rx = ssi_transfer(s->spi, tx_rx); fifo8_push(&s->rx_fifo, tx_rx); } } static void ospi_tx_fifo_push_address_raw(XlnxVersalOspi *s, uint32_t flash_addr, unsigned int addr_bytes) { /* Push write address */ if (addr_bytes == 4) { fifo8_push(&s->tx_fifo, flash_addr >> 24); } if (addr_bytes >= 3) { fifo8_push(&s->tx_fifo, flash_addr >> 16); } if (addr_bytes >= 2) { fifo8_push(&s->tx_fifo, flash_addr >> 8); } fifo8_push(&s->tx_fifo, flash_addr); } static void ospi_tx_fifo_push_address(XlnxVersalOspi *s, uint32_t flash_addr) { /* Push write address */ int addr_bytes = ospi_get_num_addr_bytes(s); ospi_tx_fifo_push_address_raw(s, flash_addr, addr_bytes); } static void ospi_tx_fifo_push_stig_addr(XlnxVersalOspi *s) { uint32_t flash_addr = s->regs[R_FLASH_CMD_ADDR_REG]; unsigned int addr_bytes = ospi_stig_addr_len(s); ospi_tx_fifo_push_address_raw(s, flash_addr, addr_bytes); } static void ospi_tx_fifo_push_rd_op_addr(XlnxVersalOspi *s, uint32_t flash_addr) { uint8_t inst_code = ospi_get_rd_opcode(s); fifo8_reset(&s->tx_fifo); /* Push read opcode */ fifo8_push(&s->tx_fifo, inst_code); /* Push read address */ ospi_tx_fifo_push_address(s, flash_addr); } static void ospi_tx_fifo_push_stig_wr_data(XlnxVersalOspi *s) { uint64_t data = s->regs[R_FLASH_WR_DATA_LOWER_REG]; int wr_data_len = ospi_stig_wr_data_len(s); int i; data |= (uint64_t) s->regs[R_FLASH_WR_DATA_UPPER_REG] << 32; for (i = 0; i < wr_data_len; i++) { int shift = i * 8; fifo8_push(&s->tx_fifo, data >> shift); } } static void ospi_tx_fifo_push_stig_rd_data(XlnxVersalOspi *s) { int rd_data_len; int i; if (ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, STIG_MEM_BANK_EN_FLD)) { rd_data_len = ospi_stig_membank_rd_bytes(s); } else { rd_data_len = ospi_stig_rd_data_len(s); } /* transmit second part (data) */ for (i = 0; i < rd_data_len; ++i) { fifo8_push(&s->tx_fifo, 0); } } static void ospi_rx_fifo_pop_stig_rd_data(XlnxVersalOspi *s) { int size = ospi_stig_rd_data_len(s); uint8_t bytes[8] = {}; int i; size = MIN(fifo8_num_used(&s->rx_fifo), size); assert(size <= 8); for (i = 0; i < size; i++) { bytes[i] = fifo8_pop(&s->rx_fifo); } s->regs[R_FLASH_RD_DATA_LOWER_REG] = ldl_le_p(bytes); s->regs[R_FLASH_RD_DATA_UPPER_REG] = ldl_le_p(bytes + 4); } static void ospi_ind_read(XlnxVersalOspi *s, uint32_t flash_addr, uint32_t len) { int i; /* Create first section of read cmd */ ospi_tx_fifo_push_rd_op_addr(s, flash_addr); /* transmit first part */ ospi_update_cs_lines(s); ospi_flush_txfifo(s); fifo8_reset(&s->rx_fifo); /* transmit second part (data) */ for (i = 0; i < len; ++i) { fifo8_push(&s->tx_fifo, 0); } ospi_flush_txfifo(s); for (i = 0; i < len; ++i) { fifo8_push(&s->rx_sram, fifo8_pop(&s->rx_fifo)); } /* done */ ospi_disable_cs(s); } static unsigned int ospi_dma_burst_size(XlnxVersalOspi *s) { return 1 << ARRAY_FIELD_EX32(s->regs, DMA_PERIPH_CONFIG_REG, NUM_BURST_REQ_BYTES_FLD); } static unsigned int ospi_dma_single_size(XlnxVersalOspi *s) { return 1 << ARRAY_FIELD_EX32(s->regs, DMA_PERIPH_CONFIG_REG, NUM_SINGLE_REQ_BYTES_FLD); } static void ind_rd_inc_num_done(XlnxVersalOspi *s) { unsigned int done = ARRAY_FIELD_EX32(s->regs, INDIRECT_READ_XFER_CTRL_REG, NUM_IND_OPS_DONE_FLD); if (done < IND_OPS_DONE_MAX) { done++; } done &= 0x3; ARRAY_FIELD_DP32(s->regs, INDIRECT_READ_XFER_CTRL_REG, NUM_IND_OPS_DONE_FLD, done); } static void ospi_ind_rd_completed(XlnxVersalOspi *s) { ARRAY_FIELD_DP32(s->regs, INDIRECT_READ_XFER_CTRL_REG, IND_OPS_DONE_STATUS_FLD, 1); ind_rd_inc_num_done(s); ospi_ind_op_next(s->rd_ind_op); if (ospi_ind_op_all_completed(s)) { set_irq(s, R_IRQ_STATUS_REG_INDIRECT_OP_DONE_FLD_MASK); } } static void ospi_dma_read(XlnxVersalOspi *s) { IndOp *op = s->rd_ind_op; uint32_t dma_len = op->num_bytes; uint32_t burst_sz = ospi_dma_burst_size(s); uint32_t single_sz = ospi_dma_single_size(s); uint32_t ind_trig_range; uint32_t remainder; XlnxCSUDMAClass *xcdc = XLNX_CSU_DMA_GET_CLASS(s->dma_src); ind_trig_range = (1 << ARRAY_FIELD_EX32(s->regs, INDIRECT_TRIGGER_ADDR_RANGE_REG, IND_RANGE_WIDTH_FLD)); remainder = dma_len % burst_sz; remainder = remainder % single_sz; if (burst_sz > ind_trig_range || single_sz > ind_trig_range || remainder != 0) { qemu_log_mask(LOG_GUEST_ERROR, "OSPI DMA burst size / single size config error\n"); } s->src_dma_inprog = true; if (xcdc->read(s->dma_src, 0, dma_len) != MEMTX_OK) { qemu_log_mask(LOG_GUEST_ERROR, "OSPI DMA configuration error\n"); } s->src_dma_inprog = false; } static void ospi_do_ind_read(XlnxVersalOspi *s) { IndOp *op = s->rd_ind_op; uint32_t next_b; uint32_t end_b; uint32_t len; bool start_dma = IS_IND_DMA_START(op) && !s->src_dma_inprog; /* Continue to read flash until we run out of space in sram */ while (!ospi_ind_op_completed(op) && !fifo8_is_full(&s->rx_sram)) { /* Read requested number of bytes, max bytes limited to size of sram */ next_b = ind_op_next_byte(op); end_b = next_b + fifo8_num_free(&s->rx_sram); end_b = MIN(end_b, ind_op_end_byte(op)); len = end_b - next_b; ospi_ind_read(s, next_b, len); ind_op_advance(op, len); if (ospi_ind_rd_watermark_enabled(s)) { ARRAY_FIELD_DP32(s->regs, IRQ_STATUS_REG, INDIRECT_XFER_LEVEL_BREACH_FLD, 1); set_irq(s, R_IRQ_STATUS_REG_INDIRECT_XFER_LEVEL_BREACH_FLD_MASK); } if (!s->src_dma_inprog && ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_DMA_IF_FLD)) { ospi_dma_read(s); } } /* Set sram full */ if (fifo8_num_used(&s->rx_sram) == RXFF_SZ) { ARRAY_FIELD_DP32(s->regs, INDIRECT_READ_XFER_CTRL_REG, SRAM_FULL_FLD, 1); set_irq(s, R_IRQ_STATUS_REG_INDRD_SRAM_FULL_FLD_MASK); } /* Signal completion if done, unless inside recursion via ospi_dma_read */ if (!ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_DMA_IF_FLD) || start_dma) { if (ospi_ind_op_completed(op)) { ospi_ind_rd_completed(s); } } } /* Transmit write enable instruction */ static void ospi_transmit_wel(XlnxVersalOspi *s, bool ahb_decoder_cs, hwaddr addr) { fifo8_reset(&s->tx_fifo); fifo8_push(&s->tx_fifo, WREN); if (ahb_decoder_cs) { ospi_ahb_decoder_enable_cs(s, addr); } else { ospi_update_cs_lines(s); } ospi_flush_txfifo(s); ospi_disable_cs(s); fifo8_reset(&s->rx_fifo); } static void ospi_ind_write(XlnxVersalOspi *s, uint32_t flash_addr, uint32_t len) { bool ahb_decoder_cs = false; uint8_t inst_code; int i; assert(fifo8_num_used(&s->tx_sram) >= len); if (!ARRAY_FIELD_EX32(s->regs, DEV_INSTR_WR_CONFIG_REG, WEL_DIS_FLD)) { ospi_transmit_wel(s, ahb_decoder_cs, 0); } /* reset fifos */ fifo8_reset(&s->tx_fifo); fifo8_reset(&s->rx_fifo); /* Push write opcode */ inst_code = ospi_get_wr_opcode(s); fifo8_push(&s->tx_fifo, inst_code); /* Push write address */ ospi_tx_fifo_push_address(s, flash_addr); /* data */ for (i = 0; i < len; i++) { fifo8_push(&s->tx_fifo, fifo8_pop(&s->tx_sram)); } /* transmit */ ospi_update_cs_lines(s); ospi_flush_txfifo(s); /* done */ ospi_disable_cs(s); fifo8_reset(&s->rx_fifo); } static void ind_wr_inc_num_done(XlnxVersalOspi *s) { unsigned int done = ARRAY_FIELD_EX32(s->regs, INDIRECT_WRITE_XFER_CTRL_REG, NUM_IND_OPS_DONE_FLD); if (done < IND_OPS_DONE_MAX) { done++; } done &= 0x3; ARRAY_FIELD_DP32(s->regs, INDIRECT_WRITE_XFER_CTRL_REG, NUM_IND_OPS_DONE_FLD, done); } static void ospi_ind_wr_completed(XlnxVersalOspi *s) { ARRAY_FIELD_DP32(s->regs, INDIRECT_WRITE_XFER_CTRL_REG, IND_OPS_DONE_STATUS_FLD, 1); ind_wr_inc_num_done(s); ospi_ind_op_next(s->wr_ind_op); /* Set indirect op done interrupt if enabled */ if (ospi_ind_op_all_completed(s)) { set_irq(s, R_IRQ_STATUS_REG_INDIRECT_OP_DONE_FLD_MASK); } } static void ospi_do_indirect_write(XlnxVersalOspi *s) { uint32_t write_watermark = s->regs[R_INDIRECT_WRITE_XFER_WATERMARK_REG]; uint32_t pagesz = ospi_get_page_sz(s); uint32_t page_mask = ~(pagesz - 1); IndOp *op = s->wr_ind_op; uint32_t next_b; uint32_t end_b; uint32_t len; /* Write out tx_fifo in maximum page sz chunks */ while (!ospi_ind_op_completed(op) && fifo8_num_used(&s->tx_sram) > 0) { next_b = ind_op_next_byte(op); end_b = next_b + MIN(fifo8_num_used(&s->tx_sram), pagesz); /* Dont cross page boundary */ if ((end_b & page_mask) > next_b) { end_b &= page_mask; } len = end_b - next_b; len = MIN(len, op->num_bytes - op->done_bytes); ospi_ind_write(s, next_b, len); ind_op_advance(op, len); } /* * Always set indirect transfer level breached interrupt if enabled * (write watermark > 0) since the tx_sram always will be emptied */ if (write_watermark > 0) { set_irq(s, R_IRQ_STATUS_REG_INDIRECT_XFER_LEVEL_BREACH_FLD_MASK); } /* Signal completions if done */ if (ospi_ind_op_completed(op)) { ospi_ind_wr_completed(s); } } static void ospi_stig_fill_membank(XlnxVersalOspi *s) { int num_rd_bytes = ospi_stig_membank_rd_bytes(s); int idx = num_rd_bytes - 8; /* first of last 8 */ int i; for (i = 0; i < num_rd_bytes; i++) { s->stig_membank[i] = fifo8_pop(&s->rx_fifo); } g_assert((idx + 4) < ARRAY_SIZE(s->stig_membank)); /* Fill in lower upper regs */ s->regs[R_FLASH_RD_DATA_LOWER_REG] = ldl_le_p(&s->stig_membank[idx]); s->regs[R_FLASH_RD_DATA_UPPER_REG] = ldl_le_p(&s->stig_membank[idx + 4]); } static void ospi_stig_cmd_exec(XlnxVersalOspi *s) { uint8_t inst_code; /* Reset fifos */ fifo8_reset(&s->tx_fifo); fifo8_reset(&s->rx_fifo); /* Push write opcode */ inst_code = ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, CMD_OPCODE_FLD); fifo8_push(&s->tx_fifo, inst_code); /* Push address if enabled */ if (ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, ENB_COMD_ADDR_FLD)) { ospi_tx_fifo_push_stig_addr(s); } /* Enable cs */ ospi_update_cs_lines(s); /* Data */ if (ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, ENB_WRITE_DATA_FLD)) { ospi_tx_fifo_push_stig_wr_data(s); } else if (ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, ENB_READ_DATA_FLD)) { /* transmit first part */ ospi_flush_txfifo(s); fifo8_reset(&s->rx_fifo); ospi_tx_fifo_push_stig_rd_data(s); } /* Transmit */ ospi_flush_txfifo(s); ospi_disable_cs(s); if (ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, ENB_READ_DATA_FLD)) { if (ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, STIG_MEM_BANK_EN_FLD)) { ospi_stig_fill_membank(s); } else { ospi_rx_fifo_pop_stig_rd_data(s); } } } static uint32_t ospi_block_address(XlnxVersalOspi *s, unsigned int block) { unsigned int block_sz = ospi_get_block_sz(s); unsigned int cs = 0; uint32_t addr = 0; while (cs < s->num_cs && block >= flash_blocks(s, cs)) { block -= flash_blocks(s, 0); addr += flash_sz(s, cs); } addr += block * block_sz; return addr; } static uint32_t ospi_get_wr_prot_addr_low(XlnxVersalOspi *s) { unsigned int block = s->regs[R_LOWER_WR_PROT_REG]; return ospi_block_address(s, block); } static uint32_t ospi_get_wr_prot_addr_upper(XlnxVersalOspi *s) { unsigned int block = s->regs[R_UPPER_WR_PROT_REG]; /* Get address of first block out of defined range */ return ospi_block_address(s, block + 1); } static bool ospi_is_write_protected(XlnxVersalOspi *s, hwaddr addr) { uint32_t wr_prot_addr_upper = ospi_get_wr_prot_addr_upper(s); uint32_t wr_prot_addr_low = ospi_get_wr_prot_addr_low(s); bool in_range = false; if (addr >= wr_prot_addr_low && addr < wr_prot_addr_upper) { in_range = true; } if (ARRAY_FIELD_EX32(s->regs, WR_PROT_CTRL_REG, INV_FLD)) { in_range = !in_range; } return in_range; } static uint64_t ospi_rx_sram_read(XlnxVersalOspi *s, unsigned int size) { uint8_t bytes[8] = {}; int i; if (size < 4 && fifo8_num_used(&s->rx_sram) >= 4) { qemu_log_mask(LOG_GUEST_ERROR, "OSPI only last read of internal " "sram is allowed to be < 32 bits\n"); } size = MIN(fifo8_num_used(&s->rx_sram), size); assert(size <= 8); for (i = 0; i < size; i++) { bytes[i] = fifo8_pop(&s->rx_sram); } return ldq_le_p(bytes); } static void ospi_tx_sram_write(XlnxVersalOspi *s, uint64_t value, unsigned int size) { int i; for (i = 0; i < size && !fifo8_is_full(&s->tx_sram); i++) { fifo8_push(&s->tx_sram, value >> 8 * i); } } static uint64_t ospi_do_dac_read(void *opaque, hwaddr addr, unsigned int size) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(opaque); uint8_t bytes[8] = {}; int i; /* Create first section of read cmd */ ospi_tx_fifo_push_rd_op_addr(s, (uint32_t) addr); /* Enable cs and transmit first part */ ospi_dac_cs(s, addr); ospi_flush_txfifo(s); fifo8_reset(&s->rx_fifo); /* transmit second part (data) */ for (i = 0; i < size; ++i) { fifo8_push(&s->tx_fifo, 0); } ospi_flush_txfifo(s); /* fill in result */ size = MIN(fifo8_num_used(&s->rx_fifo), size); assert(size <= 8); for (i = 0; i < size; i++) { bytes[i] = fifo8_pop(&s->rx_fifo); } /* done */ ospi_disable_cs(s); return ldq_le_p(bytes); } static void ospi_do_dac_write(void *opaque, hwaddr addr, uint64_t value, unsigned int size) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(opaque); bool ahb_decoder_cs = ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENABLE_AHB_DECODER_FLD); uint8_t inst_code; unsigned int i; if (!ARRAY_FIELD_EX32(s->regs, DEV_INSTR_WR_CONFIG_REG, WEL_DIS_FLD)) { ospi_transmit_wel(s, ahb_decoder_cs, addr); } /* reset fifos */ fifo8_reset(&s->tx_fifo); fifo8_reset(&s->rx_fifo); /* Push write opcode */ inst_code = ospi_get_wr_opcode(s); fifo8_push(&s->tx_fifo, inst_code); /* Push write address */ ospi_tx_fifo_push_address(s, addr); /* data */ for (i = 0; i < size; i++) { fifo8_push(&s->tx_fifo, value >> 8 * i); } /* Enable cs and transmit */ ospi_dac_cs(s, addr); ospi_flush_txfifo(s); ospi_disable_cs(s); fifo8_reset(&s->rx_fifo); } static void flash_cmd_ctrl_mem_reg_post_write(RegisterInfo *reg, uint64_t val) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(reg->opaque); if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_SPI_FLD)) { if (ARRAY_FIELD_EX32(s->regs, FLASH_COMMAND_CTRL_MEM_REG, TRIGGER_MEM_BANK_REQ_FLD)) { ospi_stig_membank_req(s); ARRAY_FIELD_DP32(s->regs, FLASH_COMMAND_CTRL_MEM_REG, TRIGGER_MEM_BANK_REQ_FLD, 0); } } } static void flash_cmd_ctrl_reg_post_write(RegisterInfo *reg, uint64_t val) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(reg->opaque); if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_SPI_FLD) && ARRAY_FIELD_EX32(s->regs, FLASH_CMD_CTRL_REG, CMD_EXEC_FLD)) { ospi_stig_cmd_exec(s); set_irq(s, R_IRQ_STATUS_REG_STIG_REQ_INT_FLD_MASK); ARRAY_FIELD_DP32(s->regs, FLASH_CMD_CTRL_REG, CMD_EXEC_FLD, 0); } } static uint64_t ind_wr_dec_num_done(XlnxVersalOspi *s, uint64_t val) { unsigned int done = ARRAY_FIELD_EX32(s->regs, INDIRECT_WRITE_XFER_CTRL_REG, NUM_IND_OPS_DONE_FLD); done--; done &= 0x3; val = FIELD_DP32(val, INDIRECT_WRITE_XFER_CTRL_REG, NUM_IND_OPS_DONE_FLD, done); return val; } static bool ind_wr_clearing_op_done(XlnxVersalOspi *s, uint64_t new_val) { bool set_in_reg = ARRAY_FIELD_EX32(s->regs, INDIRECT_WRITE_XFER_CTRL_REG, IND_OPS_DONE_STATUS_FLD); bool set_in_new_val = FIELD_EX32(new_val, INDIRECT_WRITE_XFER_CTRL_REG, IND_OPS_DONE_STATUS_FLD); /* return true if clearing bit */ return set_in_reg && !set_in_new_val; } static uint64_t ind_wr_xfer_ctrl_reg_pre_write(RegisterInfo *reg, uint64_t val) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(reg->opaque); if (ind_wr_clearing_op_done(s, val)) { val = ind_wr_dec_num_done(s, val); } return val; } static void ind_wr_xfer_ctrl_reg_post_write(RegisterInfo *reg, uint64_t val) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(reg->opaque); if (s->ind_write_disabled) { return; } if (ARRAY_FIELD_EX32(s->regs, INDIRECT_WRITE_XFER_CTRL_REG, START_FLD)) { ospi_ind_op_queue_up_wr(s); ospi_do_indirect_write(s); ARRAY_FIELD_DP32(s->regs, INDIRECT_WRITE_XFER_CTRL_REG, START_FLD, 0); } if (ARRAY_FIELD_EX32(s->regs, INDIRECT_WRITE_XFER_CTRL_REG, CANCEL_FLD)) { ospi_ind_op_cancel(s->wr_ind_op); fifo8_reset(&s->tx_sram); ARRAY_FIELD_DP32(s->regs, INDIRECT_WRITE_XFER_CTRL_REG, CANCEL_FLD, 0); } } static uint64_t ind_wr_xfer_ctrl_reg_post_read(RegisterInfo *reg, uint64_t val) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(reg->opaque); IndOp *op = s->wr_ind_op; /* Check if ind ops is ongoing */ if (!ospi_ind_op_completed(&op[0])) { /* Check if two ind ops are queued */ if (!ospi_ind_op_completed(&op[1])) { val = FIELD_DP32(val, INDIRECT_WRITE_XFER_CTRL_REG, WR_QUEUED_FLD, 1); } val = FIELD_DP32(val, INDIRECT_WRITE_XFER_CTRL_REG, WR_STATUS_FLD, 1); } return val; } static uint64_t ind_rd_dec_num_done(XlnxVersalOspi *s, uint64_t val) { unsigned int done = ARRAY_FIELD_EX32(s->regs, INDIRECT_READ_XFER_CTRL_REG, NUM_IND_OPS_DONE_FLD); done--; done &= 0x3; val = FIELD_DP32(val, INDIRECT_READ_XFER_CTRL_REG, NUM_IND_OPS_DONE_FLD, done); return val; } static uint64_t ind_rd_xfer_ctrl_reg_pre_write(RegisterInfo *reg, uint64_t val) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(reg->opaque); if (FIELD_EX32(val, INDIRECT_READ_XFER_CTRL_REG, IND_OPS_DONE_STATUS_FLD)) { val = ind_rd_dec_num_done(s, val); val &= ~R_INDIRECT_READ_XFER_CTRL_REG_IND_OPS_DONE_STATUS_FLD_MASK; } return val; } static void ind_rd_xfer_ctrl_reg_post_write(RegisterInfo *reg, uint64_t val) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(reg->opaque); if (ARRAY_FIELD_EX32(s->regs, INDIRECT_READ_XFER_CTRL_REG, START_FLD)) { ospi_ind_op_queue_up_rd(s); ospi_do_ind_read(s); ARRAY_FIELD_DP32(s->regs, INDIRECT_READ_XFER_CTRL_REG, START_FLD, 0); } if (ARRAY_FIELD_EX32(s->regs, INDIRECT_READ_XFER_CTRL_REG, CANCEL_FLD)) { ospi_ind_op_cancel(s->rd_ind_op); fifo8_reset(&s->rx_sram); ARRAY_FIELD_DP32(s->regs, INDIRECT_READ_XFER_CTRL_REG, CANCEL_FLD, 0); } } static uint64_t ind_rd_xfer_ctrl_reg_post_read(RegisterInfo *reg, uint64_t val) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(reg->opaque); IndOp *op = s->rd_ind_op; /* Check if ind ops is ongoing */ if (!ospi_ind_op_completed(&op[0])) { /* Check if two ind ops are queued */ if (!ospi_ind_op_completed(&op[1])) { val = FIELD_DP32(val, INDIRECT_READ_XFER_CTRL_REG, RD_QUEUED_FLD, 1); } val = FIELD_DP32(val, INDIRECT_READ_XFER_CTRL_REG, RD_STATUS_FLD, 1); } return val; } static uint64_t sram_fill_reg_post_read(RegisterInfo *reg, uint64_t val) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(reg->opaque); val = ((fifo8_num_used(&s->tx_sram) & 0xFFFF) << 16) | (fifo8_num_used(&s->rx_sram) & 0xFFFF); return val; } static uint64_t dll_obs_upper_reg_post_read(RegisterInfo *reg, uint64_t val) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(reg->opaque); uint32_t rx_dec_out; rx_dec_out = FIELD_EX32(val, DLL_OBSERVABLE_UPPER_REG, DLL_OBSERVABLE__UPPER_RX_DECODER_OUTPUT_FLD); if (rx_dec_out < MAX_RX_DEC_OUT) { ARRAY_FIELD_DP32(s->regs, DLL_OBSERVABLE_UPPER_REG, DLL_OBSERVABLE__UPPER_RX_DECODER_OUTPUT_FLD, rx_dec_out + 1); } return val; } static void xlnx_versal_ospi_reset(DeviceState *dev) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(dev); unsigned int i; for (i = 0; i < ARRAY_SIZE(s->regs_info); ++i) { register_reset(&s->regs_info[i]); } fifo8_reset(&s->rx_fifo); fifo8_reset(&s->tx_fifo); fifo8_reset(&s->rx_sram); fifo8_reset(&s->tx_sram); s->rd_ind_op[0].completed = true; s->rd_ind_op[1].completed = true; s->wr_ind_op[0].completed = true; s->wr_ind_op[1].completed = true; ARRAY_FIELD_DP32(s->regs, DLL_OBSERVABLE_LOWER_REG, DLL_OBSERVABLE_LOWER_DLL_LOCK_FLD, 1); ARRAY_FIELD_DP32(s->regs, DLL_OBSERVABLE_LOWER_REG, DLL_OBSERVABLE_LOWER_LOOPBACK_LOCK_FLD, 1); } static RegisterAccessInfo ospi_regs_info[] = { { .name = "CONFIG_REG", .addr = A_CONFIG_REG, .reset = 0x80780081, .ro = 0x9c000000, },{ .name = "DEV_INSTR_RD_CONFIG_REG", .addr = A_DEV_INSTR_RD_CONFIG_REG, .reset = 0x3, .ro = 0xe0ecc800, },{ .name = "DEV_INSTR_WR_CONFIG_REG", .addr = A_DEV_INSTR_WR_CONFIG_REG, .reset = 0x2, .ro = 0xe0fcce00, },{ .name = "DEV_DELAY_REG", .addr = A_DEV_DELAY_REG, },{ .name = "RD_DATA_CAPTURE_REG", .addr = A_RD_DATA_CAPTURE_REG, .reset = 0x1, .ro = 0xfff0fec0, },{ .name = "DEV_SIZE_CONFIG_REG", .addr = A_DEV_SIZE_CONFIG_REG, .reset = 0x101002, .ro = 0xe0000000, },{ .name = "SRAM_PARTITION_CFG_REG", .addr = A_SRAM_PARTITION_CFG_REG, .reset = 0x80, .ro = 0xffffff00, },{ .name = "IND_AHB_ADDR_TRIGGER_REG", .addr = A_IND_AHB_ADDR_TRIGGER_REG, },{ .name = "DMA_PERIPH_CONFIG_REG", .addr = A_DMA_PERIPH_CONFIG_REG, .ro = 0xfffff0f0, },{ .name = "REMAP_ADDR_REG", .addr = A_REMAP_ADDR_REG, },{ .name = "MODE_BIT_CONFIG_REG", .addr = A_MODE_BIT_CONFIG_REG, .reset = 0x200, .ro = 0xffff7800, },{ .name = "SRAM_FILL_REG", .addr = A_SRAM_FILL_REG, .ro = 0xffffffff, .post_read = sram_fill_reg_post_read, },{ .name = "TX_THRESH_REG", .addr = A_TX_THRESH_REG, .reset = 0x1, .ro = 0xffffffe0, },{ .name = "RX_THRESH_REG", .addr = A_RX_THRESH_REG, .reset = 0x1, .ro = 0xffffffe0, },{ .name = "WRITE_COMPLETION_CTRL_REG", .addr = A_WRITE_COMPLETION_CTRL_REG, .reset = 0x10005, .ro = 0x1800, },{ .name = "NO_OF_POLLS_BEF_EXP_REG", .addr = A_NO_OF_POLLS_BEF_EXP_REG, .reset = 0xffffffff, },{ .name = "IRQ_STATUS_REG", .addr = A_IRQ_STATUS_REG, .ro = 0xfff08000, .w1c = 0xf7fff, },{ .name = "IRQ_MASK_REG", .addr = A_IRQ_MASK_REG, .ro = 0xfff08000, },{ .name = "LOWER_WR_PROT_REG", .addr = A_LOWER_WR_PROT_REG, },{ .name = "UPPER_WR_PROT_REG", .addr = A_UPPER_WR_PROT_REG, },{ .name = "WR_PROT_CTRL_REG", .addr = A_WR_PROT_CTRL_REG, .ro = 0xfffffffc, },{ .name = "INDIRECT_READ_XFER_CTRL_REG", .addr = A_INDIRECT_READ_XFER_CTRL_REG, .ro = 0xffffffd4, .w1c = 0x08, .pre_write = ind_rd_xfer_ctrl_reg_pre_write, .post_write = ind_rd_xfer_ctrl_reg_post_write, .post_read = ind_rd_xfer_ctrl_reg_post_read, },{ .name = "INDIRECT_READ_XFER_WATERMARK_REG", .addr = A_INDIRECT_READ_XFER_WATERMARK_REG, },{ .name = "INDIRECT_READ_XFER_START_REG", .addr = A_INDIRECT_READ_XFER_START_REG, },{ .name = "INDIRECT_READ_XFER_NUM_BYTES_REG", .addr = A_INDIRECT_READ_XFER_NUM_BYTES_REG, },{ .name = "INDIRECT_WRITE_XFER_CTRL_REG", .addr = A_INDIRECT_WRITE_XFER_CTRL_REG, .ro = 0xffffffdc, .w1c = 0x20, .pre_write = ind_wr_xfer_ctrl_reg_pre_write, .post_write = ind_wr_xfer_ctrl_reg_post_write, .post_read = ind_wr_xfer_ctrl_reg_post_read, },{ .name = "INDIRECT_WRITE_XFER_WATERMARK_REG", .addr = A_INDIRECT_WRITE_XFER_WATERMARK_REG, .reset = 0xffffffff, },{ .name = "INDIRECT_WRITE_XFER_START_REG", .addr = A_INDIRECT_WRITE_XFER_START_REG, },{ .name = "INDIRECT_WRITE_XFER_NUM_BYTES_REG", .addr = A_INDIRECT_WRITE_XFER_NUM_BYTES_REG, },{ .name = "INDIRECT_TRIGGER_ADDR_RANGE_REG", .addr = A_INDIRECT_TRIGGER_ADDR_RANGE_REG, .reset = 0x4, .ro = 0xfffffff0, },{ .name = "FLASH_COMMAND_CTRL_MEM_REG", .addr = A_FLASH_COMMAND_CTRL_MEM_REG, .ro = 0xe008fffe, .post_write = flash_cmd_ctrl_mem_reg_post_write, },{ .name = "FLASH_CMD_CTRL_REG", .addr = A_FLASH_CMD_CTRL_REG, .ro = 0x7a, .post_write = flash_cmd_ctrl_reg_post_write, },{ .name = "FLASH_CMD_ADDR_REG", .addr = A_FLASH_CMD_ADDR_REG, },{ .name = "FLASH_RD_DATA_LOWER_REG", .addr = A_FLASH_RD_DATA_LOWER_REG, .ro = 0xffffffff, },{ .name = "FLASH_RD_DATA_UPPER_REG", .addr = A_FLASH_RD_DATA_UPPER_REG, .ro = 0xffffffff, },{ .name = "FLASH_WR_DATA_LOWER_REG", .addr = A_FLASH_WR_DATA_LOWER_REG, },{ .name = "FLASH_WR_DATA_UPPER_REG", .addr = A_FLASH_WR_DATA_UPPER_REG, },{ .name = "POLLING_FLASH_STATUS_REG", .addr = A_POLLING_FLASH_STATUS_REG, .ro = 0xfff0ffff, },{ .name = "PHY_CONFIGURATION_REG", .addr = A_PHY_CONFIGURATION_REG, .reset = 0x40000000, .ro = 0x1f80ff80, },{ .name = "PHY_MASTER_CONTROL_REG", .addr = A_PHY_MASTER_CONTROL_REG, .reset = 0x800000, .ro = 0xfe08ff80, },{ .name = "DLL_OBSERVABLE_LOWER_REG", .addr = A_DLL_OBSERVABLE_LOWER_REG, .ro = 0xffffffff, },{ .name = "DLL_OBSERVABLE_UPPER_REG", .addr = A_DLL_OBSERVABLE_UPPER_REG, .ro = 0xffffffff, .post_read = dll_obs_upper_reg_post_read, },{ .name = "OPCODE_EXT_LOWER_REG", .addr = A_OPCODE_EXT_LOWER_REG, .reset = 0x13edfa00, },{ .name = "OPCODE_EXT_UPPER_REG", .addr = A_OPCODE_EXT_UPPER_REG, .reset = 0x6f90000, .ro = 0xffff, },{ .name = "MODULE_ID_REG", .addr = A_MODULE_ID_REG, .reset = 0x300, .ro = 0xffffffff, } }; /* Return dev-obj from reg-region created by register_init_block32 */ static XlnxVersalOspi *xilinx_ospi_of_mr(void *mr_accessor) { RegisterInfoArray *reg_array = mr_accessor; Object *dev; dev = reg_array->mem.owner; assert(dev); return XILINX_VERSAL_OSPI(dev); } static void ospi_write(void *opaque, hwaddr addr, uint64_t value, unsigned int size) { XlnxVersalOspi *s = xilinx_ospi_of_mr(opaque); register_write_memory(opaque, addr, value, size); ospi_update_irq_line(s); } static const MemoryRegionOps ospi_ops = { .read = register_read_memory, .write = ospi_write, .endianness = DEVICE_LITTLE_ENDIAN, .valid = { .min_access_size = 4, .max_access_size = 4, }, }; static uint64_t ospi_indac_read(void *opaque, unsigned int size) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(opaque); uint64_t ret = ospi_rx_sram_read(s, size); if (!ospi_ind_op_completed(s->rd_ind_op)) { ospi_do_ind_read(s); } return ret; } static void ospi_indac_write(void *opaque, uint64_t value, unsigned int size) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(opaque); g_assert(!s->ind_write_disabled); if (!ospi_ind_op_completed(s->wr_ind_op)) { ospi_tx_sram_write(s, value, size); ospi_do_indirect_write(s); } else { qemu_log_mask(LOG_GUEST_ERROR, "OSPI wr into indac area while no ongoing indac wr\n"); } } static bool is_inside_indac_range(XlnxVersalOspi *s, hwaddr addr) { uint32_t range_start; uint32_t range_end; if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_DMA_IF_FLD)) { return true; } range_start = s->regs[R_IND_AHB_ADDR_TRIGGER_REG]; range_end = range_start + (1 << ARRAY_FIELD_EX32(s->regs, INDIRECT_TRIGGER_ADDR_RANGE_REG, IND_RANGE_WIDTH_FLD)); addr += s->regs[R_IND_AHB_ADDR_TRIGGER_REG] & 0xF0000000; return addr >= range_start && addr < range_end; } static bool ospi_is_indac_active(XlnxVersalOspi *s) { /* * When dac and indac cannot be active at the same time, * return true when dac is disabled. */ return s->dac_with_indac || !s->dac_enable; } static uint64_t ospi_dac_read(void *opaque, hwaddr addr, unsigned int size) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(opaque); if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_SPI_FLD)) { if (ospi_is_indac_active(s) && is_inside_indac_range(s, addr)) { return ospi_indac_read(s, size); } if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_DIR_ACC_CTLR_FLD) && s->dac_enable) { if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_AHB_ADDR_REMAP_FLD)) { addr += s->regs[R_REMAP_ADDR_REG]; } return ospi_do_dac_read(opaque, addr, size); } else { qemu_log_mask(LOG_GUEST_ERROR, "OSPI AHB rd while DAC disabled\n"); } } else { qemu_log_mask(LOG_GUEST_ERROR, "OSPI AHB rd while OSPI disabled\n"); } return 0; } static void ospi_dac_write(void *opaque, hwaddr addr, uint64_t value, unsigned int size) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(opaque); if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_SPI_FLD)) { if (ospi_is_indac_active(s) && !s->ind_write_disabled && is_inside_indac_range(s, addr)) { return ospi_indac_write(s, value, size); } if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_DIR_ACC_CTLR_FLD) && s->dac_enable) { if (ARRAY_FIELD_EX32(s->regs, CONFIG_REG, ENB_AHB_ADDR_REMAP_FLD)) { addr += s->regs[R_REMAP_ADDR_REG]; } /* Check if addr is write protected */ if (ARRAY_FIELD_EX32(s->regs, WR_PROT_CTRL_REG, ENB_FLD) && ospi_is_write_protected(s, addr)) { set_irq(s, R_IRQ_STATUS_REG_PROT_WR_ATTEMPT_FLD_MASK); ospi_update_irq_line(s); qemu_log_mask(LOG_GUEST_ERROR, "OSPI writing into write protected area\n"); return; } ospi_do_dac_write(opaque, addr, value, size); } else { qemu_log_mask(LOG_GUEST_ERROR, "OSPI AHB wr while DAC disabled\n"); } } else { qemu_log_mask(LOG_GUEST_ERROR, "OSPI AHB wr while OSPI disabled\n"); } } static const MemoryRegionOps ospi_dac_ops = { .read = ospi_dac_read, .write = ospi_dac_write, .endianness = DEVICE_LITTLE_ENDIAN, .valid = { .min_access_size = 4, .max_access_size = 4, }, }; static void ospi_update_dac_status(void *opaque, int n, int level) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(opaque); s->dac_enable = level; } static void xlnx_versal_ospi_realize(DeviceState *dev, Error **errp) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(dev); SysBusDevice *sbd = SYS_BUS_DEVICE(dev); s->num_cs = 4; s->spi = ssi_create_bus(dev, "spi0"); s->cs_lines = g_new0(qemu_irq, s->num_cs); for (int i = 0; i < s->num_cs; ++i) { sysbus_init_irq(sbd, &s->cs_lines[i]); } fifo8_create(&s->rx_fifo, RXFF_SZ); fifo8_create(&s->tx_fifo, TXFF_SZ); fifo8_create(&s->rx_sram, RXFF_SZ); fifo8_create(&s->tx_sram, TXFF_SZ); } static void xlnx_versal_ospi_init(Object *obj) { XlnxVersalOspi *s = XILINX_VERSAL_OSPI(obj); SysBusDevice *sbd = SYS_BUS_DEVICE(obj); DeviceState *dev = DEVICE(obj); RegisterInfoArray *reg_array; memory_region_init(&s->iomem, obj, TYPE_XILINX_VERSAL_OSPI, XILINX_VERSAL_OSPI_R_MAX * 4); reg_array = register_init_block32(DEVICE(obj), ospi_regs_info, ARRAY_SIZE(ospi_regs_info), s->regs_info, s->regs, &ospi_ops, XILINX_VERSAL_OSPI_ERR_DEBUG, XILINX_VERSAL_OSPI_R_MAX * 4); memory_region_add_subregion(&s->iomem, 0x0, ®_array->mem); sysbus_init_mmio(sbd, &s->iomem); memory_region_init_io(&s->iomem_dac, obj, &ospi_dac_ops, s, TYPE_XILINX_VERSAL_OSPI "-dac", 0x20000000); sysbus_init_mmio(sbd, &s->iomem_dac); sysbus_init_irq(sbd, &s->irq); object_property_add_link(obj, "dma-src", TYPE_XLNX_CSU_DMA, (Object **)&s->dma_src, object_property_allow_set_link, OBJ_PROP_LINK_STRONG); qdev_init_gpio_in_named(dev, ospi_update_dac_status, "ospi-mux-sel", 1); } static const VMStateDescription vmstate_ind_op = { .name = "OSPIIndOp", .version_id = 1, .minimum_version_id = 1, .fields = (const VMStateField[]) { VMSTATE_UINT32(flash_addr, IndOp), VMSTATE_UINT32(num_bytes, IndOp), VMSTATE_UINT32(done_bytes, IndOp), VMSTATE_BOOL(completed, IndOp), VMSTATE_END_OF_LIST() } }; static const VMStateDescription vmstate_xlnx_versal_ospi = { .name = TYPE_XILINX_VERSAL_OSPI, .version_id = 1, .minimum_version_id = 1, .fields = (const VMStateField[]) { VMSTATE_FIFO8(rx_fifo, XlnxVersalOspi), VMSTATE_FIFO8(tx_fifo, XlnxVersalOspi), VMSTATE_FIFO8(rx_sram, XlnxVersalOspi), VMSTATE_FIFO8(tx_sram, XlnxVersalOspi), VMSTATE_BOOL(ind_write_disabled, XlnxVersalOspi), VMSTATE_BOOL(dac_with_indac, XlnxVersalOspi), VMSTATE_BOOL(dac_enable, XlnxVersalOspi), VMSTATE_BOOL(src_dma_inprog, XlnxVersalOspi), VMSTATE_STRUCT_ARRAY(rd_ind_op, XlnxVersalOspi, 2, 1, vmstate_ind_op, IndOp), VMSTATE_STRUCT_ARRAY(wr_ind_op, XlnxVersalOspi, 2, 1, vmstate_ind_op, IndOp), VMSTATE_UINT32_ARRAY(regs, XlnxVersalOspi, XILINX_VERSAL_OSPI_R_MAX), VMSTATE_UINT8_ARRAY(stig_membank, XlnxVersalOspi, 512), VMSTATE_END_OF_LIST(), } }; static Property xlnx_versal_ospi_properties[] = { DEFINE_PROP_BOOL("dac-with-indac", XlnxVersalOspi, dac_with_indac, false), DEFINE_PROP_BOOL("indac-write-disabled", XlnxVersalOspi, ind_write_disabled, false), DEFINE_PROP_END_OF_LIST(), }; static void xlnx_versal_ospi_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); dc->reset = xlnx_versal_ospi_reset; dc->realize = xlnx_versal_ospi_realize; dc->vmsd = &vmstate_xlnx_versal_ospi; device_class_set_props(dc, xlnx_versal_ospi_properties); } static const TypeInfo xlnx_versal_ospi_info = { .name = TYPE_XILINX_VERSAL_OSPI, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(XlnxVersalOspi), .class_init = xlnx_versal_ospi_class_init, .instance_init = xlnx_versal_ospi_init, }; static void xlnx_versal_ospi_register_types(void) { type_register_static(&xlnx_versal_ospi_info); } type_init(xlnx_versal_ospi_register_types)