Alan Olsen | 494a43b | 2010-04-26 10:50:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | * NAND Flash Controller Device Driver |
| 3 | * Copyright (c) 2009, Intel Corporation and its suppliers. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms and conditions of the GNU General Public License, |
| 7 | * version 2, as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| 17 | * |
| 18 | */ |
| 19 | |
| 20 | /* header for LLD_CDMA.c module */ |
| 21 | |
| 22 | #ifndef _LLD_CDMA_ |
| 23 | #define _LLD_CDMA_ |
| 24 | |
| 25 | #include "flash.h" |
| 26 | |
| 27 | #define DEBUG_SYNC 1 |
| 28 | |
| 29 | /*/////////// CDMA specific MACRO definition */ |
| 30 | #define MAX_DESCS (255) |
| 31 | #define MAX_CHANS (4) |
| 32 | #define MAX_SYNC_POINTS (16) |
| 33 | #define MAX_DESC_PER_CHAN (MAX_DESCS * 3 + MAX_SYNC_POINTS + 2) |
| 34 | |
| 35 | #define CHANNEL_SYNC_MASK (0x000F) |
| 36 | #define CHANNEL_DMA_MASK (0x00F0) |
| 37 | #define CHANNEL_ID_MASK (0x0300) |
| 38 | #define CHANNEL_CONT_MASK (0x4000) |
| 39 | #define CHANNEL_INTR_MASK (0x8000) |
| 40 | |
| 41 | #define CHANNEL_SYNC_OFFSET (0) |
| 42 | #define CHANNEL_DMA_OFFSET (4) |
| 43 | #define CHANNEL_ID_OFFSET (8) |
| 44 | #define CHANNEL_CONT_OFFSET (14) |
| 45 | #define CHANNEL_INTR_OFFSET (15) |
| 46 | |
| 47 | u16 CDMA_Data_CMD(u8 cmd, u8 *data, u32 block, u16 page, u16 num, u16 flags); |
| 48 | u16 CDMA_MemCopy_CMD(u8 *dest, u8 *src, u32 byte_cnt, u16 flags); |
| 49 | u16 CDMA_Execute_CMDs(void); |
| 50 | void print_pending_cmds(void); |
| 51 | void print_cdma_descriptors(void); |
| 52 | |
| 53 | extern u8 g_SBDCmdIndex; |
| 54 | extern struct mrst_nand_info info; |
| 55 | |
| 56 | |
| 57 | /*/////////// prototypes: APIs for LLD_CDMA */ |
| 58 | int is_cdma_interrupt(void); |
| 59 | u16 CDMA_Event_Status(void); |
| 60 | |
| 61 | /* CMD-DMA Descriptor Struct. These are defined by the CMD_DMA HW */ |
| 62 | struct cdma_descriptor { |
| 63 | u32 NxtPointerHi; |
| 64 | u32 NxtPointerLo; |
| 65 | u32 FlashPointerHi; |
| 66 | u32 FlashPointerLo; |
| 67 | u32 CommandType; |
| 68 | u32 MemAddrHi; |
| 69 | u32 MemAddrLo; |
| 70 | u32 CommandFlags; |
| 71 | u32 Channel; |
| 72 | u32 Status; |
| 73 | u32 MemCopyPointerHi; |
| 74 | u32 MemCopyPointerLo; |
| 75 | u32 Reserved12; |
| 76 | u32 Reserved13; |
| 77 | u32 Reserved14; |
| 78 | u32 pcmd; /* pending cmd num related to this descriptor */ |
| 79 | }; |
| 80 | |
| 81 | /* This struct holds one MemCopy descriptor as defined by the HW */ |
| 82 | struct memcpy_descriptor { |
| 83 | u32 NxtPointerHi; |
| 84 | u32 NxtPointerLo; |
| 85 | u32 SrcAddrHi; |
| 86 | u32 SrcAddrLo; |
| 87 | u32 DestAddrHi; |
| 88 | u32 DestAddrLo; |
| 89 | u32 XferSize; |
| 90 | u32 MemCopyFlags; |
| 91 | u32 MemCopyStatus; |
| 92 | u32 reserved9; |
| 93 | u32 reserved10; |
| 94 | u32 reserved11; |
| 95 | u32 reserved12; |
| 96 | u32 reserved13; |
| 97 | u32 reserved14; |
| 98 | u32 reserved15; |
| 99 | }; |
| 100 | |
| 101 | /* Pending CMD table entries (includes MemCopy parameters */ |
| 102 | struct pending_cmd { |
| 103 | u8 CMD; |
| 104 | u8 *DataAddr; |
| 105 | u32 Block; |
| 106 | u16 Page; |
| 107 | u16 PageCount; |
| 108 | u8 *DataDestAddr; |
| 109 | u8 *DataSrcAddr; |
| 110 | u32 MemCopyByteCnt; |
| 111 | u16 Flags; |
| 112 | u16 Status; |
| 113 | }; |
| 114 | |
| 115 | #if DEBUG_SYNC |
| 116 | extern u32 debug_sync_cnt; |
| 117 | #endif |
| 118 | |
| 119 | /* Definitions for CMD DMA descriptor chain fields */ |
| 120 | #define CMD_DMA_DESC_COMP 0x8000 |
| 121 | #define CMD_DMA_DESC_FAIL 0x4000 |
| 122 | |
| 123 | #endif /*_LLD_CDMA_*/ |