2 * Copyright (C) 2013 Altera Corporation <www.altera.com>
4 * SPDX-License-Identifier: GPL-2.0+
7 #ifndef _SCAN_MANAGER_H_
8 #define _SCAN_MANAGER_H_
10 struct socfpga_scan_manager {
20 * Shift count to get number of IO scan chain data in granularity
21 * of 128-bit ( N / 128 )
23 #define IO_SCAN_CHAIN_128BIT_SHIFT 7
26 * Mask to get residual IO scan chain data in
27 * granularity of 128-bit ( N mod 128 )
29 #define IO_SCAN_CHAIN_128BIT_MASK 0x7F
32 * Shift count to get number of IO scan chain
33 * data in granularity of 32-bit ( N / 32 )
35 #define IO_SCAN_CHAIN_32BIT_SHIFT 5
38 * Mask to get residual IO scan chain data in
39 * granularity of 32-bit ( N mod 32 )
41 #define IO_SCAN_CHAIN_32BIT_MASK 0x1F
44 #define IO_SCAN_CHAIN_BYTE_MASK 0xFF
46 /* 24-bits (3 bytes) IO scan chain payload definition */
47 #define IO_SCAN_CHAIN_PAYLOAD_24BIT 24
50 * Maximum length of TDI_TDO packet payload is 128 bits,
51 * represented by (length - 1) in TDI_TDO header
53 #define TDI_TDO_MAX_PAYLOAD 127
55 /* TDI_TDO packet header for IO scan chain program */
56 #define TDI_TDO_HEADER_FIRST_BYTE 0x80
58 /* Position of second command byte for TDI_TDO packet */
59 #define TDI_TDO_HEADER_SECOND_BYTE_SHIFT 8
62 * Maximum polling loop to wait for IO scan chain engine
63 * becomes idle to prevent infinite loop
65 #define SCAN_MAX_DELAY 100
67 #define SCANMGR_STAT_ACTIVE_GET(x) (((x) & 0x80000000) >> 31)
68 #define SCANMGR_STAT_WFIFOCNT_GET(x) (((x) & 0x70000000) >> 28)
71 * Program HPS IO Scan Chain
72 * io_scan_chain_id - IO scan chain ID
73 * io_scan_chain_len_in_bits - IO scan chain length in bits
74 * iocsr_scan_chain - IO scan chain table
76 uint32_t scan_mgr_io_scan_chain_prg(
77 uint32_t io_scan_chain_id,
78 uint32_t io_scan_chain_len_in_bits,
79 const uint32_t *iocsr_scan_chain);
81 extern const uint32_t iocsr_scan_chain0_table[
82 ((CONFIG_HPS_IOCSR_SCANCHAIN0_LENGTH / 32) + 1)];
83 extern const uint32_t iocsr_scan_chain1_table[
84 ((CONFIG_HPS_IOCSR_SCANCHAIN1_LENGTH / 32) + 1)];
85 extern const uint32_t iocsr_scan_chain2_table[
86 ((CONFIG_HPS_IOCSR_SCANCHAIN2_LENGTH / 32) + 1)];
87 extern const uint32_t iocsr_scan_chain3_table[
88 ((CONFIG_HPS_IOCSR_SCANCHAIN3_LENGTH / 32) + 1)];
90 int scan_mgr_configure_iocsr(void);
92 #endif /* _SCAN_MANAGER_H_ */