[2446] | 1 | #ifndef WARP_SIMPLE_SPI_H |
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| 2 | #define WARP_SIMPLE_SPI_H |
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| 3 | |
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| 4 | #include "xbasic_types.h" |
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| 5 | #include "xstatus.h" |
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| 6 | #include "xil_io.h" |
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| 7 | |
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| 8 | #define WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET (0x00000000) |
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| 9 | #define WARP_SIMPLE_SPI_SLV_REG0_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000000) |
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| 10 | #define WARP_SIMPLE_SPI_SLV_REG1_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000004) |
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| 11 | #define WARP_SIMPLE_SPI_SLV_REG2_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000008) |
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| 12 | #define WARP_SIMPLE_SPI_SLV_REG3_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x0000000C) |
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| 13 | #define WARP_SIMPLE_SPI_SLV_REG4_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000010) |
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| 14 | #define WARP_SIMPLE_SPI_SLV_REG5_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000014) |
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| 15 | #define WARP_SIMPLE_SPI_SLV_REG6_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000018) |
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| 16 | #define WARP_SIMPLE_SPI_SLV_REG7_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x0000001C) |
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| 17 | #define WARP_SIMPLE_SPI_SLV_REG8_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000020) |
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| 18 | #define WARP_SIMPLE_SPI_SLV_REG9_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000024) |
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| 19 | #define WARP_SIMPLE_SPI_SLV_REG10_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000028) |
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| 20 | #define WARP_SIMPLE_SPI_SLV_REG11_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x0000002C) |
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| 21 | #define WARP_SIMPLE_SPI_SLV_REG12_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000030) |
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| 22 | #define WARP_SIMPLE_SPI_SLV_REG13_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000034) |
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| 23 | #define WARP_SIMPLE_SPI_SLV_REG14_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x00000038) |
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| 24 | #define WARP_SIMPLE_SPI_SLV_REG15_OFFSET (WARP_SIMPLE_SPI_USER_SLV_SPACE_OFFSET + 0x0000003C) |
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| 25 | |
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| 26 | |
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| 27 | /* Address map: |
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| 28 | HDL is coded [MSB:LSB] = [31:0] |
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| 29 | regX[31] maps to 0x80000000 in C driver |
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| 30 | regX[0] maps to 0x00000001 in C driver |
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| 31 | |
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| 32 | 0: Config: |
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| 33 | [ 3: 0] Clock divider bit sel (00=0.5*busclk, 01=0.25*busclk, ...) 0x0000000F |
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| 34 | [30:10] Reserved |
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| 35 | [ 31] Chip select |
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| 36 | |
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| 37 | 1: SPI Tx |
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| 38 | [ 7: 0] Tx data byte |
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| 39 | [31: 8] Reserved |
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| 40 | |
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| 41 | 2: SPI Rx: {samp_rxByte, 24'b0} |
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| 42 | [ 7: 0] SPI Rx byte |
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| 43 | [31: 8] Reserved 0xFFFFFF00 |
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| 44 | |
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| 45 | 3: FPGA config control: |
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| 46 | [ 0] SPI Enable (inverted below - reg active high, output active low) - gives FPGA SPI master control of SD card |
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| 47 | [ 1] Config request (inverted below - reg active high, output active low) - asserting this bit will reconfigure FPGA! |
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| 48 | [ 7: 2] Reserved |
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| 49 | [10: 8] Bitstream selection (slot on SD card, [0 to 7]) |
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| 50 | [31:11] Reserved |
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| 51 | |
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| 52 | 4-15: Reserved |
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| 53 | */ |
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| 54 | |
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| 55 | #define SSPI_REG_CONFIG WARP_SIMPLE_SPI_SLV_REG0_OFFSET |
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| 56 | #define SSPI_REG_SPITX WARP_SIMPLE_SPI_SLV_REG1_OFFSET |
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| 57 | #define SSPI_REG_SPIRX WARP_SIMPLE_SPI_SLV_REG2_OFFSET |
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| 58 | #define SSPI_REG_FPGA_CFG_CTRL WARP_SIMPLE_SPI_SLV_REG3_OFFSET |
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| 59 | |
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| 60 | #define SSPI_REG_CONFIG_MASK_CLKDIV 0x0000000F |
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| 61 | #define SSPI_REG_CONFIG_MASK_CS 0x80000000 |
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| 62 | |
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| 63 | #define SSPI_REG_FPGA_CFG_MASK_EN 0x00000001 |
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| 64 | #define SSPI_REG_FPGA_CFG_MASK_GO 0x00000002 |
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| 65 | #define SSPI_REG_FPGA_CFG_MASK_SLOT 0x00000F00 |
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| 66 | |
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| 67 | #define sd_fpga_ctrl_en(ba) Xil_Out32((ba+SSPI_REG_FPGA_CFG_CTRL), (Xil_In32((ba+SSPI_REG_FPGA_CFG_CTRL)) | SSPI_REG_FPGA_CFG_MASK_EN)) |
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| 68 | #define sd_fpga_ctrl_dis(ba) Xil_Out32((ba+SSPI_REG_FPGA_CFG_CTRL), (Xil_In32((ba+SSPI_REG_FPGA_CFG_CTRL)) & ~SSPI_REG_FPGA_CFG_MASK_EN)) |
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| 69 | |
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| 70 | #define sd_config_req(ba) Xil_Out32((ba+SSPI_REG_FPGA_CFG_CTRL), (Xil_In32((ba+SSPI_REG_FPGA_CFG_CTRL)) | SSPI_REG_FPGA_CFG_MASK_GO)) |
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| 71 | #define sd_config_set_slot(ba, slot) Xil_Out32((ba+SSPI_REG_FPGA_CFG_CTRL), ((Xil_In32((ba+SSPI_REG_FPGA_CFG_CTRL)) & ~SSPI_REG_FPGA_CFG_MASK_SLOT) | (slot&0xF)<<8)) |
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| 72 | |
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| 73 | #define simple_spi_set_clkDiv(ba, div) (Xil_Out32((ba+SSPI_REG_CONFIG), \ |
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| 74 | (Xil_In32((ba+SSPI_REG_CONFIG)) & ~SSPI_REG_CONFIG_MASK_CLKDIV) | (div & SSPI_REG_CONFIG_MASK_CLKDIV))) |
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| 75 | |
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| 76 | #define simple_spi_set_cs(ba, cs) (Xil_Out32((ba+SSPI_REG_CONFIG), \ |
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| 77 | (Xil_In32((ba+SSPI_REG_CONFIG)) & ~SSPI_REG_CONFIG_MASK_CS) | (cs ? SSPI_REG_CONFIG_MASK_CS:0))) |
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| 78 | |
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| 79 | //Functions |
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| 80 | u8 simple_spi_read(u32 baseaddr); |
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| 81 | void simple_spi_write(u32 baseaddr, u8 txByte); |
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| 82 | void sd_send_cmd(u32 ba, u8 cmd, u32 args, u8 last_byte); |
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| 83 | int sd_read_block(u32 ba, u32 blk_offset, u8* buf, u32 blk_size); |
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| 84 | int sd_write_block(u32 ba, u32 blk_offset, u8* buf, u32 blk_size); |
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| 85 | int sd_rw_init(u32 ba); |
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| 86 | |
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| 87 | #define SD_BLK_SIZE 512 |
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| 88 | #define SD_BLKS_PER_IMG 18404 //LX240 bitstrem = 9.2MB |
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| 89 | |
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[2447] | 90 | //Subset of SD card commands for basic init/read/write via SPI |
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| 91 | #define SD_CMD0 (0x40+0) /* GO_IDLE_STATE */ |
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| 92 | #define SD_ACMD41 (0x40+41) /* SEND_OP_COND (SDC) */ |
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| 93 | #define SD_CMD16 (0x40+16) /* SET_BLOCKLEN */ |
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| 94 | #define SD_CMD17 (0x40+17) /* READ_SINGLE_BLOCK */ |
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| 95 | #define SD_CMD23 (0x40+23) /* SET_BLOCK_COUNT (MMC) */ |
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| 96 | #define SD_CMD24 (0x40+24) /* WRITE_BLOCK */ |
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| 97 | #define SD_CMD55 (0x40+55) /* APP_CMD */ |
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[2446] | 98 | |
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[2447] | 99 | #define SD_DATA_TOKEN_RD 0xFE |
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| 100 | #define SD_DATA_TOKEN_WR_SINGLE 0xFE |
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| 101 | #define SD_DATA_TOKEN_WR_MULTI 0xFC |
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| 102 | #define SD_DATA_TOKEN_STOP_TRAN 0xFD |
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[2446] | 103 | |
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| 104 | #endif /** WARP_SIMPLE_SPI_H */ |
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