| /* |
| * Copyright (C) 2013 Altera Corporation <www.altera.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #ifndef _SCAN_MANAGER_H_ |
| #define _SCAN_MANAGER_H_ |
| |
| struct socfpga_scan_manager { |
| u32 stat; |
| u32 en; |
| u32 padding[2]; |
| u32 fifo_single_byte; |
| u32 fifo_double_byte; |
| u32 fifo_triple_byte; |
| u32 fifo_quad_byte; |
| }; |
| |
| /* |
| * Shift count to get number of IO scan chain data in granularity |
| * of 128-bit ( N / 128 ) |
| */ |
| #define IO_SCAN_CHAIN_128BIT_SHIFT 7 |
| |
| /* |
| * Mask to get residual IO scan chain data in |
| * granularity of 128-bit ( N mod 128 ) |
| */ |
| #define IO_SCAN_CHAIN_128BIT_MASK 0x7F |
| |
| /* |
| * Shift count to get number of IO scan chain |
| * data in granularity of 32-bit ( N / 32 ) |
| */ |
| #define IO_SCAN_CHAIN_32BIT_SHIFT 5 |
| |
| /* |
| * Mask to get residual IO scan chain data in |
| * granularity of 32-bit ( N mod 32 ) |
| */ |
| #define IO_SCAN_CHAIN_32BIT_MASK 0x1F |
| |
| /* Byte mask */ |
| #define IO_SCAN_CHAIN_BYTE_MASK 0xFF |
| |
| /* 24-bits (3 bytes) IO scan chain payload definition */ |
| #define IO_SCAN_CHAIN_PAYLOAD_24BIT 24 |
| |
| /* |
| * Maximum length of TDI_TDO packet payload is 128 bits, |
| * represented by (length - 1) in TDI_TDO header |
| */ |
| #define TDI_TDO_MAX_PAYLOAD 127 |
| |
| /* TDI_TDO packet header for IO scan chain program */ |
| #define TDI_TDO_HEADER_FIRST_BYTE 0x80 |
| |
| /* Position of second command byte for TDI_TDO packet */ |
| #define TDI_TDO_HEADER_SECOND_BYTE_SHIFT 8 |
| |
| /* |
| * Maximum polling loop to wait for IO scan chain engine |
| * becomes idle to prevent infinite loop |
| */ |
| #define SCAN_MAX_DELAY 100 |
| |
| #define SCANMGR_STAT_ACTIVE_GET(x) (((x) & 0x80000000) >> 31) |
| #define SCANMGR_STAT_WFIFOCNT_GET(x) (((x) & 0x70000000) >> 28) |
| |
| /* |
| * Program HPS IO Scan Chain |
| * io_scan_chain_id - IO scan chain ID |
| * io_scan_chain_len_in_bits - IO scan chain length in bits |
| * iocsr_scan_chain - IO scan chain table |
| */ |
| uint32_t scan_mgr_io_scan_chain_prg( |
| uint32_t io_scan_chain_id, |
| uint32_t io_scan_chain_len_in_bits, |
| const uint32_t *iocsr_scan_chain); |
| |
| extern const uint32_t iocsr_scan_chain0_table[ |
| ((CONFIG_HPS_IOCSR_SCANCHAIN0_LENGTH / 32) + 1)]; |
| extern const uint32_t iocsr_scan_chain1_table[ |
| ((CONFIG_HPS_IOCSR_SCANCHAIN1_LENGTH / 32) + 1)]; |
| extern const uint32_t iocsr_scan_chain2_table[ |
| ((CONFIG_HPS_IOCSR_SCANCHAIN2_LENGTH / 32) + 1)]; |
| extern const uint32_t iocsr_scan_chain3_table[ |
| ((CONFIG_HPS_IOCSR_SCANCHAIN3_LENGTH / 32) + 1)]; |
| |
| int scan_mgr_configure_iocsr(void); |
| |
| #endif /* _SCAN_MANAGER_H_ */ |
