uccf.h 3.4 KB

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * Copyright (C) 2006 Freescale Semiconductor, Inc.
  4. *
  5. * Dave Liu <daveliu@freescale.com>
  6. * based on source code of Shlomi Gridish
  7. */
  8. #ifndef __UCCF_H__
  9. #define __UCCF_H__
  10. #include "common.h"
  11. #include "linux/immap_qe.h"
  12. #include <fsl_qe.h>
  13. /* Fast or Giga ethernet */
  14. enum enet_type {
  15. FAST_ETH,
  16. GIGA_ETH,
  17. };
  18. /* General UCC Extended Mode Register */
  19. #define UCC_GUEMR_MODE_MASK_RX 0x02
  20. #define UCC_GUEMR_MODE_MASK_TX 0x01
  21. #define UCC_GUEMR_MODE_FAST_RX 0x02
  22. #define UCC_GUEMR_MODE_FAST_TX 0x01
  23. #define UCC_GUEMR_MODE_SLOW_RX 0x00
  24. #define UCC_GUEMR_MODE_SLOW_TX 0x00
  25. /* Bit 3 must be set 1 */
  26. #define UCC_GUEMR_SET_RESERVED3 0x10
  27. /* General UCC FAST Mode Register */
  28. #define UCC_FAST_GUMR_TCI 0x20000000
  29. #define UCC_FAST_GUMR_TRX 0x10000000
  30. #define UCC_FAST_GUMR_TTX 0x08000000
  31. #define UCC_FAST_GUMR_CDP 0x04000000
  32. #define UCC_FAST_GUMR_CTSP 0x02000000
  33. #define UCC_FAST_GUMR_CDS 0x01000000
  34. #define UCC_FAST_GUMR_CTSS 0x00800000
  35. #define UCC_FAST_GUMR_TXSY 0x00020000
  36. #define UCC_FAST_GUMR_RSYN 0x00010000
  37. #define UCC_FAST_GUMR_RTSM 0x00002000
  38. #define UCC_FAST_GUMR_REVD 0x00000400
  39. #define UCC_FAST_GUMR_ENR 0x00000020
  40. #define UCC_FAST_GUMR_ENT 0x00000010
  41. /* GUMR [MODE] bit maps */
  42. #define UCC_FAST_GUMR_HDLC 0x00000000
  43. #define UCC_FAST_GUMR_QMC 0x00000002
  44. #define UCC_FAST_GUMR_UART 0x00000004
  45. #define UCC_FAST_GUMR_BISYNC 0x00000008
  46. #define UCC_FAST_GUMR_ATM 0x0000000a
  47. #define UCC_FAST_GUMR_ETH 0x0000000c
  48. /* Transmit On Demand (UTORD) */
  49. #define UCC_SLOW_TOD 0x8000
  50. #define UCC_FAST_TOD 0x8000
  51. /* Fast Ethernet (10/100 Mbps) */
  52. /* Rx virtual FIFO size */
  53. #define UCC_GETH_URFS_INIT 512
  54. /* 1/2 urfs */
  55. #define UCC_GETH_URFET_INIT 256
  56. /* 3/4 urfs */
  57. #define UCC_GETH_URFSET_INIT 384
  58. /* Tx virtual FIFO size */
  59. #define UCC_GETH_UTFS_INIT 512
  60. /* 1/2 utfs */
  61. #define UCC_GETH_UTFET_INIT 256
  62. #define UCC_GETH_UTFTT_INIT 128
  63. /* Gigabit Ethernet (1000 Mbps) */
  64. /* Rx virtual FIFO size */
  65. #define UCC_GETH_URFS_GIGA_INIT 4096/*2048*/
  66. /* 1/2 urfs */
  67. #define UCC_GETH_URFET_GIGA_INIT 2048/*1024*/
  68. /* 3/4 urfs */
  69. #define UCC_GETH_URFSET_GIGA_INIT 3072/*1536*/
  70. /* Tx virtual FIFO size */
  71. #define UCC_GETH_UTFS_GIGA_INIT 8192/*2048*/
  72. /* 1/2 utfs */
  73. #define UCC_GETH_UTFET_GIGA_INIT 4096/*1024*/
  74. #define UCC_GETH_UTFTT_GIGA_INIT 0x400/*0x40*/
  75. /* UCC fast alignment */
  76. #define UCC_FAST_RX_ALIGN 4
  77. #define UCC_FAST_MRBLR_ALIGNMENT 4
  78. #define UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT 8
  79. /* Sizes */
  80. #define UCC_FAST_RX_VIRTUAL_FIFO_SIZE_PAD 8
  81. /* UCC fast structure. */
  82. struct ucc_fast_inf {
  83. int ucc_num;
  84. qe_clock_e rx_clock;
  85. qe_clock_e tx_clock;
  86. enum enet_type eth_type;
  87. };
  88. struct ucc_fast_priv {
  89. struct ucc_fast_inf *uf_info;
  90. ucc_fast_t *uf_regs; /* a pointer to memory map of UCC regs */
  91. u32 *p_ucce; /* a pointer to the event register */
  92. u32 *p_uccm; /* a pointer to the mask register */
  93. int enabled_tx; /* whether UCC is enabled for Tx (ENT) */
  94. int enabled_rx; /* whether UCC is enabled for Rx (ENR) */
  95. u32 ucc_fast_tx_virtual_fifo_base_offset;
  96. u32 ucc_fast_rx_virtual_fifo_base_offset;
  97. };
  98. void ucc_fast_transmit_on_demand(struct ucc_fast_priv *uccf);
  99. u32 ucc_fast_get_qe_cr_subblock(int ucc_num);
  100. void ucc_fast_enable(struct ucc_fast_priv *uccf, comm_dir_e mode);
  101. void ucc_fast_disable(struct ucc_fast_priv *uccf, comm_dir_e mode);
  102. int ucc_fast_init(struct ucc_fast_inf *uf_info,
  103. struct ucc_fast_priv **uccf_ret);
  104. #endif /* __UCCF_H__ */