| /* |
| * QEMU model of Xilinx Versal's OSPI controller. |
| * |
| * Copyright (c) 2021 Xilinx Inc. |
| * Written by Francisco Iglesias <francisco.iglesias@xilinx.com> |
| * |
| * 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 reqested 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 = (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, |
| .minimum_version_id_old = 1, |
| .fields = (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) |
