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author | David Woodhouse <David.Woodhouse@intel.com> | 2010-06-08 18:08:32 +0100 |
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committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-06-08 18:08:32 +0100 |
commit | 8ae4f63623c6a6d164e28d6ac327cf8287b0a24d (patch) | |
tree | 1e6d7427245dcb0cdc8605fe2b0ae518b28d2574 /drivers/staging/spectra/lld_cdma.h | |
parent | f39b56f6d067786b6c37c9a20776d1c0eb405a49 (diff) | |
download | op-kernel-dev-8ae4f63623c6a6d164e28d6ac327cf8287b0a24d.zip op-kernel-dev-8ae4f63623c6a6d164e28d6ac327cf8287b0a24d.tar.gz |
spectra: Move to drivers/staging
It'll take some work before this is really shippable.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/staging/spectra/lld_cdma.h')
-rw-r--r-- | drivers/staging/spectra/lld_cdma.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/staging/spectra/lld_cdma.h b/drivers/staging/spectra/lld_cdma.h new file mode 100644 index 0000000..854ea06 --- /dev/null +++ b/drivers/staging/spectra/lld_cdma.h @@ -0,0 +1,123 @@ +/* + * NAND Flash Controller Device Driver + * Copyright (c) 2009, Intel Corporation and its suppliers. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +/* header for LLD_CDMA.c module */ + +#ifndef _LLD_CDMA_ +#define _LLD_CDMA_ + +#include "flash.h" + +#define DEBUG_SYNC 1 + +/*/////////// CDMA specific MACRO definition */ +#define MAX_DESCS (255) +#define MAX_CHANS (4) +#define MAX_SYNC_POINTS (16) +#define MAX_DESC_PER_CHAN (MAX_DESCS * 3 + MAX_SYNC_POINTS + 2) + +#define CHANNEL_SYNC_MASK (0x000F) +#define CHANNEL_DMA_MASK (0x00F0) +#define CHANNEL_ID_MASK (0x0300) +#define CHANNEL_CONT_MASK (0x4000) +#define CHANNEL_INTR_MASK (0x8000) + +#define CHANNEL_SYNC_OFFSET (0) +#define CHANNEL_DMA_OFFSET (4) +#define CHANNEL_ID_OFFSET (8) +#define CHANNEL_CONT_OFFSET (14) +#define CHANNEL_INTR_OFFSET (15) + +u16 CDMA_Data_CMD(u8 cmd, u8 *data, u32 block, u16 page, u16 num, u16 flags); +u16 CDMA_MemCopy_CMD(u8 *dest, u8 *src, u32 byte_cnt, u16 flags); +u16 CDMA_Execute_CMDs(void); +void print_pending_cmds(void); +void print_cdma_descriptors(void); + +extern u8 g_SBDCmdIndex; +extern struct mrst_nand_info info; + + +/*/////////// prototypes: APIs for LLD_CDMA */ +int is_cdma_interrupt(void); +u16 CDMA_Event_Status(void); + +/* CMD-DMA Descriptor Struct. These are defined by the CMD_DMA HW */ +struct cdma_descriptor { + u32 NxtPointerHi; + u32 NxtPointerLo; + u32 FlashPointerHi; + u32 FlashPointerLo; + u32 CommandType; + u32 MemAddrHi; + u32 MemAddrLo; + u32 CommandFlags; + u32 Channel; + u32 Status; + u32 MemCopyPointerHi; + u32 MemCopyPointerLo; + u32 Reserved12; + u32 Reserved13; + u32 Reserved14; + u32 pcmd; /* pending cmd num related to this descriptor */ +}; + +/* This struct holds one MemCopy descriptor as defined by the HW */ +struct memcpy_descriptor { + u32 NxtPointerHi; + u32 NxtPointerLo; + u32 SrcAddrHi; + u32 SrcAddrLo; + u32 DestAddrHi; + u32 DestAddrLo; + u32 XferSize; + u32 MemCopyFlags; + u32 MemCopyStatus; + u32 reserved9; + u32 reserved10; + u32 reserved11; + u32 reserved12; + u32 reserved13; + u32 reserved14; + u32 reserved15; +}; + +/* Pending CMD table entries (includes MemCopy parameters */ +struct pending_cmd { + u8 CMD; + u8 *DataAddr; + u32 Block; + u16 Page; + u16 PageCount; + u8 *DataDestAddr; + u8 *DataSrcAddr; + u32 MemCopyByteCnt; + u16 Flags; + u16 Status; +}; + +#if DEBUG_SYNC +extern u32 debug_sync_cnt; +#endif + +/* Definitions for CMD DMA descriptor chain fields */ +#define CMD_DMA_DESC_COMP 0x8000 +#define CMD_DMA_DESC_FAIL 0x4000 + +#endif /*_LLD_CDMA_*/ |