From: David Woodhouse Date: Wed, 14 Oct 2009 22:09:13 +0000 (+0100) Subject: spectra: Add basic mtd support X-Git-Tag: v2.6.36-rc1~520^2~1^2~450^2~4 X-Git-Url: http://bbs.cooldavid.org/git/?a=commitdiff_plain;h=b589aece500c16fdcfff74346efc0d4caf7ba968;p=net-next-2.6.git spectra: Add basic mtd support Signed-off-by: David Woodhouse --- diff --git a/drivers/block/spectra/Kconfig b/drivers/block/spectra/Kconfig index dae951e96e6..4bed96f6883 100644 --- a/drivers/block/spectra/Kconfig +++ b/drivers/block/spectra/Kconfig @@ -18,6 +18,13 @@ config MRST_NAND_HW Driver communicates with the actual hardware's register interface. in DMA mode. +config MRST_NAND_MTD + bool "Linux MTD mode" + depends on MTD + help + Driver communicates with the kernel MTD subsystem instead of its own + built-in hardware driver. + config MRST_NAND_EMU bool "RAM emulator testing" help diff --git a/drivers/block/spectra/Makefile b/drivers/block/spectra/Makefile index 8f5e0179250..2a949038533 100644 --- a/drivers/block/spectra/Makefile +++ b/drivers/block/spectra/Makefile @@ -7,4 +7,5 @@ spectra-y := ffsport.o flash.o lld.o spectra-$(CONFIG_MRST_NAND_HW) += lld_nand.o spectra-$(CONFIG_MRST_NAND_HW_DMA) += lld_cdma.o spectra-$(CONFIG_MRST_NAND_EMU) += lld_emu.o +spectra-$(CONFIG_MRST_NAND_MTD) += lld_mtd.o diff --git a/drivers/block/spectra/lld.c b/drivers/block/spectra/lld.c index c9a311213af..ac25eea1a2a 100644 --- a/drivers/block/spectra/lld.c +++ b/drivers/block/spectra/lld.c @@ -103,6 +103,85 @@ u16 GLOB_LLD_Get_Bad_Block(u32 block) #endif /* FLASH_EMU */ +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +#if FLASH_MTD /* vector all the LLD calls to the LLD_MTD code */ +#include "lld_mtd.h" +#include "lld_cdma.h" + +/* common functions: */ +u16 GLOB_LLD_Flash_Reset(void) +{ + return mtd_Flash_Reset(); +} + +u16 GLOB_LLD_Read_Device_ID(void) +{ + return mtd_Read_Device_ID(); +} + +int GLOB_LLD_Flash_Release(void) +{ + return mtd_Flash_Release(); +} + +u16 GLOB_LLD_Flash_Init(void) +{ + return mtd_Flash_Init(); +} + +u16 GLOB_LLD_Erase_Block(u32 block_add) +{ + return mtd_Erase_Block(block_add); +} + +u16 GLOB_LLD_Write_Page_Main(u8 *write_data, u32 block, u16 Page, + u16 PageCount) +{ + return mtd_Write_Page_Main(write_data, block, Page, PageCount); +} + +u16 GLOB_LLD_Read_Page_Main(u8 *read_data, u32 block, u16 Page, + u16 PageCount) +{ + return mtd_Read_Page_Main(read_data, block, Page, PageCount); +} + +u16 GLOB_LLD_Read_Page_Main_Polling(u8 *read_data, + u32 block, u16 page, u16 page_count) +{ + return mtd_Read_Page_Main(read_data, block, page, page_count); +} + +u16 GLOB_LLD_Write_Page_Main_Spare(u8 *write_data, u32 block, + u16 Page, u16 PageCount) +{ + return mtd_Write_Page_Main_Spare(write_data, block, Page, PageCount); +} + +u16 GLOB_LLD_Read_Page_Main_Spare(u8 *read_data, u32 block, + u16 Page, u16 PageCount) +{ + return mtd_Read_Page_Main_Spare(read_data, block, Page, PageCount); +} + +u16 GLOB_LLD_Write_Page_Spare(u8 *write_data, u32 block, u16 Page, + u16 PageCount) +{ + return mtd_Write_Page_Spare(write_data, block, Page, PageCount); +} + +u16 GLOB_LLD_Read_Page_Spare(u8 *read_data, u32 block, u16 Page, + u16 PageCount) +{ + return mtd_Read_Page_Spare(read_data, block, Page, PageCount); +} + +u16 GLOB_LLD_Get_Bad_Block(u32 block) +{ + return mtd_Get_Bad_Block(block); +} + +#endif /* FLASH_MTD */ /*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ #if FLASH_NAND /* vector all the LLD calls to the NAND controller code */ diff --git a/drivers/block/spectra/lld_mtd.c b/drivers/block/spectra/lld_mtd.c new file mode 100644 index 00000000000..f5666a9792b --- /dev/null +++ b/drivers/block/spectra/lld_mtd.c @@ -0,0 +1,684 @@ +/* + * 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. + * + */ + +#include +#include +#include +#include "flash.h" +#include "ffsdefs.h" +#include "lld_emu.h" +#include "lld.h" +#if CMD_DMA +#include "lld_cdma.h" +#endif + +#define GLOB_LLD_PAGES 64 +#define GLOB_LLD_PAGE_SIZE (512+16) +#define GLOB_LLD_PAGE_DATA_SIZE 512 +#define GLOB_LLD_BLOCKS 2048 + +#if CMD_DMA +#include "lld_cdma.h" +u32 totalUsedBanks; +u32 valid_banks[MAX_CHANS]; +#endif + +static struct mtd_info *spectra_mtd; +static int mtddev = -1; +module_param(mtddev, int, 0); + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Flash_Init +* Inputs: none +* Outputs: PASS=0 (notice 0=ok here) +* Description: Creates & initializes the flash RAM array. +* +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_Flash_Init(void) +{ + if (mtddev == -1) { + printk(KERN_ERR "No MTD device specified. Give mtddev parameter\n"); + return FAIL; + } + + spectra_mtd = get_mtd_device(NULL, mtddev); + if (!spectra_mtd) { + printk(KERN_ERR "Failed to obtain MTD device #%d\n", mtddev); + return FAIL; + } + + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + return PASS; +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Flash_Release +* Inputs: none +* Outputs: PASS=0 (notice 0=ok here) +* Description: Releases the flash. +* +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +int mtd_Flash_Release(void) +{ + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + if (!spectra_mtd) + return PASS; + + put_mtd_device(spectra_mtd); + spectra_mtd = NULL; + + return PASS; +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Read_Device_ID +* Inputs: none +* Outputs: PASS=1 FAIL=0 +* Description: Reads the info from the controller registers. +* Sets up DeviceInfo structure with device parameters +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ + +u16 mtd_Read_Device_ID(void) +{ + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + if (!spectra_mtd) + return FAIL; + + DeviceInfo.wDeviceMaker = 0; + DeviceInfo.wDeviceType = 8; + DeviceInfo.wSpectraStartBlock = SPECTRA_START_BLOCK; + DeviceInfo.wTotalBlocks = spectra_mtd->size / spectra_mtd->erasesize; + DeviceInfo.wSpectraEndBlock = DeviceInfo.wTotalBlocks - 1; + DeviceInfo.wPagesPerBlock = spectra_mtd->erasesize / spectra_mtd->writesize; + DeviceInfo.wPageSize = spectra_mtd->writesize + spectra_mtd->oobsize; + DeviceInfo.wPageDataSize = spectra_mtd->writesize; + DeviceInfo.wPageSpareSize = spectra_mtd->oobsize; + DeviceInfo.wBlockSize = DeviceInfo.wPageSize * DeviceInfo.wPagesPerBlock; + DeviceInfo.wBlockDataSize = DeviceInfo.wPageDataSize * DeviceInfo.wPagesPerBlock; + DeviceInfo.wDataBlockNum = (u32) (DeviceInfo.wSpectraEndBlock - + DeviceInfo.wSpectraStartBlock + + 1); + DeviceInfo.MLCDevice = 0;//spectra_mtd->celltype & NAND_CI_CELLTYPE_MSK; + DeviceInfo.nBitsInPageNumber = + (u8)GLOB_Calc_Used_Bits(DeviceInfo.wPagesPerBlock); + DeviceInfo.nBitsInPageDataSize = + (u8)GLOB_Calc_Used_Bits(DeviceInfo.wPageDataSize); + DeviceInfo.nBitsInBlockDataSize = + (u8)GLOB_Calc_Used_Bits(DeviceInfo.wBlockDataSize); + +#if CMD_DMA + totalUsedBanks = 4; + valid_banks[0] = 1; + valid_banks[1] = 1; + valid_banks[2] = 1; + valid_banks[3] = 1; +#endif + + return PASS; +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Flash_Reset +* Inputs: none +* Outputs: PASS=0 (notice 0=ok here) +* Description: Reset the flash +* +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_Flash_Reset(void) +{ + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + return PASS; +} + +void erase_callback(struct erase_info *e) +{ + complete((void *)e->priv); +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Erase_Block +* Inputs: Address +* Outputs: PASS=0 (notice 0=ok here) +* Description: Erase a block +* +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_Erase_Block(u32 block_add) +{ + struct erase_info erase; + DECLARE_COMPLETION_ONSTACK(comp); + int ret; + + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + if (block_add >= DeviceInfo.wTotalBlocks) { + printk(KERN_ERR "mtd_Erase_Block error! " + "Too big block address: %d\n", block_add); + return FAIL; + } + + nand_dbg_print(NAND_DBG_DEBUG, "Erasing block %d\n", + (int)block_add); + + erase.mtd = spectra_mtd; + erase.callback = erase_callback; + erase.addr = block_add * spectra_mtd->erasesize; + erase.len = spectra_mtd->erasesize; + erase.priv = (unsigned long)∁ + + ret = spectra_mtd->erase(spectra_mtd, &erase); + if (!ret) { + wait_for_completion(&comp); + if (erase.state != MTD_ERASE_DONE) + ret = -EIO; + } + if (ret) { + printk(KERN_WARNING "mtd_Erase_Block error! " + "erase of region [0x%llx, 0x%llx] failed\n", + erase.addr, erase.len); + return FAIL; + } + + return PASS; +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Write_Page_Main +* Inputs: Write buffer address pointer +* Block number +* Page number +* Number of pages to process +* Outputs: PASS=0 (notice 0=ok here) +* Description: Write the data in the buffer to main area of flash +* +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_Write_Page_Main(u8 *write_data, u32 Block, + u16 Page, u16 PageCount) +{ + size_t retlen; + int ret = 0; + + if (Block >= DeviceInfo.wTotalBlocks) + return FAIL; + + if (Page + PageCount > DeviceInfo.wPagesPerBlock) + return FAIL; + + nand_dbg_print(NAND_DBG_DEBUG, "mtd_Write_Page_Main: " + "lba %u Page %u PageCount %u\n", + (unsigned int)Block, + (unsigned int)Page, (unsigned int)PageCount); + + + while (PageCount) { + ret = spectra_mtd->write(spectra_mtd, + (Block * spectra_mtd->erasesize) + (Page * spectra_mtd->writesize), + DeviceInfo.wPageDataSize, &retlen, write_data); + if (ret) { + printk(KERN_ERR "%s failed %d\n", __func__, ret); + return FAIL; + } + write_data += DeviceInfo.wPageDataSize; + Page++; + PageCount--; + } + + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + return PASS; +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Read_Page_Main +* Inputs: Read buffer address pointer +* Block number +* Page number +* Number of pages to process +* Outputs: PASS=0 (notice 0=ok here) +* Description: Read the data from the flash main area to the buffer +* +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_Read_Page_Main(u8 *read_data, u32 Block, + u16 Page, u16 PageCount) +{ + size_t retlen; + int ret = 0; + + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + if (Block >= DeviceInfo.wTotalBlocks) + return FAIL; + + if (Page + PageCount > DeviceInfo.wPagesPerBlock) + return FAIL; + + nand_dbg_print(NAND_DBG_DEBUG, "mtd_Read_Page_Main: " + "lba %u Page %u PageCount %u\n", + (unsigned int)Block, + (unsigned int)Page, (unsigned int)PageCount); + + + while (PageCount) { + ret = spectra_mtd->read(spectra_mtd, + (Block * spectra_mtd->erasesize) + (Page * spectra_mtd->writesize), + DeviceInfo.wPageDataSize, &retlen, read_data); + if (ret) { + printk(KERN_ERR "%s failed %d\n", __func__, ret); + return FAIL; + } + read_data += DeviceInfo.wPageDataSize; + Page++; + PageCount--; + } + + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + return PASS; +} + +#ifndef ELDORA +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Read_Page_Main_Spare +* Inputs: Write Buffer +* Address +* Buffer size +* Outputs: PASS=0 (notice 0=ok here) +* Description: Read from flash main+spare area +* +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_Read_Page_Main_Spare(u8 *read_data, u32 Block, + u16 Page, u16 PageCount) +{ + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + if (Block >= DeviceInfo.wTotalBlocks) { + printk(KERN_ERR "Read Page Main+Spare " + "Error: Block Address too big\n"); + return FAIL; + } + + if (Page + PageCount > DeviceInfo.wPagesPerBlock) { + printk(KERN_ERR "Read Page Main+Spare " + "Error: Page number %d+%d too big in block %d\n", + Page, PageCount, Block); + return FAIL; + } + + nand_dbg_print(NAND_DBG_DEBUG, "Read Page Main + Spare - " + "No. of pages %u block %u start page %u\n", + (unsigned int)PageCount, + (unsigned int)Block, (unsigned int)Page); + + + while (PageCount) { + struct mtd_oob_ops ops; + int ret; + + ops.mode = MTD_OOB_AUTO; + ops.datbuf = read_data; + ops.len = DeviceInfo.wPageDataSize; + ops.oobbuf = read_data + DeviceInfo.wPageDataSize + BTSIG_OFFSET; + ops.ooblen = BTSIG_BYTES; + ops.ooboffs = 0; + + ret = spectra_mtd->read_oob(spectra_mtd, + (Block * spectra_mtd->erasesize) + (Page * spectra_mtd->writesize), + &ops); + if (ret) { + printk(KERN_ERR "%s failed %d\n", __func__, ret); + return FAIL; + } + read_data += DeviceInfo.wPageSize; + Page++; + PageCount--; + } + + return PASS; +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Write_Page_Main_Spare +* Inputs: Write buffer +* address +* buffer length +* Outputs: PASS=0 (notice 0=ok here) +* Description: Write the buffer to main+spare area of flash +* +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_Write_Page_Main_Spare(u8 *write_data, u32 Block, + u16 Page, u16 page_count) +{ + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + if (Block >= DeviceInfo.wTotalBlocks) { + printk(KERN_ERR "Write Page Main + Spare " + "Error: Block Address too big\n"); + return FAIL; + } + + if (Page + page_count > DeviceInfo.wPagesPerBlock) { + printk(KERN_ERR "Write Page Main + Spare " + "Error: Page number %d+%d too big in block %d\n", + Page, page_count, Block); + WARN_ON(1); + return FAIL; + } + + nand_dbg_print(NAND_DBG_DEBUG, "Write Page Main+Spare - " + "No. of pages %u block %u start page %u\n", + (unsigned int)page_count, + (unsigned int)Block, (unsigned int)Page); + + while (page_count) { + struct mtd_oob_ops ops; + int ret; + + ops.mode = MTD_OOB_AUTO; + ops.datbuf = write_data; + ops.len = DeviceInfo.wPageDataSize; + ops.oobbuf = write_data + DeviceInfo.wPageDataSize + BTSIG_OFFSET; + ops.ooblen = BTSIG_BYTES; + ops.ooboffs = 0; + + ret = spectra_mtd->write_oob(spectra_mtd, + (Block * spectra_mtd->erasesize) + (Page * spectra_mtd->writesize), + &ops); + if (ret) { + printk(KERN_ERR "%s failed %d\n", __func__, ret); + return FAIL; + } + write_data += DeviceInfo.wPageSize; + Page++; + page_count--; + } + + return PASS; +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Write_Page_Spare +* Inputs: Write buffer +* Address +* buffer size +* Outputs: PASS=0 (notice 0=ok here) +* Description: Write the buffer in the spare area +* +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_Write_Page_Spare(u8 *write_data, u32 Block, + u16 Page, u16 PageCount) +{ + WARN_ON(1); + return FAIL; +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Read_Page_Spare +* Inputs: Write Buffer +* Address +* Buffer size +* Outputs: PASS=0 (notice 0=ok here) +* Description: Read data from the spare area +* +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_Read_Page_Spare(u8 *read_data, u32 Block, + u16 Page, u16 PageCount) +{ + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + if (Block >= DeviceInfo.wTotalBlocks) { + printk(KERN_ERR "Read Page Spare " + "Error: Block Address too big\n"); + return FAIL; + } + + if (Page + PageCount > DeviceInfo.wPagesPerBlock) { + printk(KERN_ERR "Read Page Spare " + "Error: Page number too big\n"); + return FAIL; + } + + nand_dbg_print(NAND_DBG_DEBUG, "Read Page Spare- " + "block %u page %u (%u pages)\n", + (unsigned int)Block, (unsigned int)Page, PageCount); + + while (PageCount) { + struct mtd_oob_ops ops; + int ret; + + ops.mode = MTD_OOB_AUTO; + ops.datbuf = NULL; + ops.len = 0; + ops.oobbuf = read_data; + ops.ooblen = BTSIG_BYTES; + ops.ooboffs = 0; + + ret = spectra_mtd->read_oob(spectra_mtd, + (Block * spectra_mtd->erasesize) + (Page * spectra_mtd->writesize), + &ops); + if (ret) { + printk(KERN_ERR "%s failed %d\n", __func__, ret); + return FAIL; + } + + read_data += DeviceInfo.wPageSize; + Page++; + PageCount--; + } + + return PASS; +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Enable_Disable_Interrupts +* Inputs: enable or disable +* Outputs: none +* Description: NOP +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +void mtd_Enable_Disable_Interrupts(u16 INT_ENABLE) +{ + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); +} + +u16 mtd_Get_Bad_Block(u32 block) +{ + return 0; +} + +#if CMD_DMA +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Support for CDMA functions +************************************ +* mtd_CDMA_Flash_Init +* CDMA_process_data command (use LLD_CDMA) +* CDMA_MemCopy_CMD (use LLD_CDMA) +* mtd_CDMA_execute all commands +* mtd_CDMA_Event_Status +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_CDMA_Flash_Init(void) +{ + u16 i; + + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + for (i = 0; i < MAX_DESCS + MAX_CHANS; i++) { + PendingCMD[i].CMD = 0; + PendingCMD[i].Tag = 0; + PendingCMD[i].DataAddr = 0; + PendingCMD[i].Block = 0; + PendingCMD[i].Page = 0; + PendingCMD[i].PageCount = 0; + PendingCMD[i].DataDestAddr = 0; + PendingCMD[i].DataSrcAddr = 0; + PendingCMD[i].MemCopyByteCnt = 0; + PendingCMD[i].ChanSync[0] = 0; + PendingCMD[i].ChanSync[1] = 0; + PendingCMD[i].ChanSync[2] = 0; + PendingCMD[i].ChanSync[3] = 0; + PendingCMD[i].ChanSync[4] = 0; + PendingCMD[i].Status = 3; + } + + return PASS; +} + +static void mtd_isr(int irq, void *dev_id) +{ + /* TODO: ... */ +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: CDMA_Execute_CMDs +* Inputs: tag_count: the number of pending cmds to do +* Outputs: PASS/FAIL +* Description: execute each command in the pending CMD array +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_CDMA_Execute_CMDs(u16 tag_count) +{ + u16 i, j; + u8 CMD; /* cmd parameter */ + u8 *data; + u32 block; + u16 page; + u16 count; + u16 status = PASS; + + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + nand_dbg_print(NAND_DBG_TRACE, "At start of Execute CMDs: " + "Tag Count %u\n", tag_count); + + for (i = 0; i < totalUsedBanks; i++) { + PendingCMD[i].CMD = DUMMY_CMD; + PendingCMD[i].Tag = 0xFF; + PendingCMD[i].Block = + (DeviceInfo.wTotalBlocks / totalUsedBanks) * i; + + for (j = 0; j <= MAX_CHANS; j++) + PendingCMD[i].ChanSync[j] = 0; + } + + CDMA_Execute_CMDs(tag_count); + +#ifdef VERBOSE + print_pending_cmds(tag_count); +#endif +#if DEBUG_SYNC + } + debug_sync_cnt++; +#endif + + for (i = MAX_CHANS; + i < tag_count + MAX_CHANS; i++) { + CMD = PendingCMD[i].CMD; + data = PendingCMD[i].DataAddr; + block = PendingCMD[i].Block; + page = PendingCMD[i].Page; + count = PendingCMD[i].PageCount; + + switch (CMD) { + case ERASE_CMD: + mtd_Erase_Block(block); + PendingCMD[i].Status = PASS; + break; + case WRITE_MAIN_CMD: + mtd_Write_Page_Main(data, block, page, count); + PendingCMD[i].Status = PASS; + break; + case WRITE_MAIN_SPARE_CMD: + mtd_Write_Page_Main_Spare(data, block, page, count); + PendingCMD[i].Status = PASS; + break; + case READ_MAIN_CMD: + mtd_Read_Page_Main(data, block, page, count); + PendingCMD[i].Status = PASS; + break; + case MEMCOPY_CMD: + memcpy(PendingCMD[i].DataDestAddr, + PendingCMD[i].DataSrcAddr, + PendingCMD[i].MemCopyByteCnt); + case DUMMY_CMD: + PendingCMD[i].Status = PASS; + break; + default: + PendingCMD[i].Status = FAIL; + break; + } + } + + /* + * Temperory adding code to reset PendingCMD array for basic testing. + * It should be done at the end of event status function. + */ + for (i = tag_count + MAX_CHANS; i < MAX_DESCS; i++) { + PendingCMD[i].CMD = 0; + PendingCMD[i].Tag = 0; + PendingCMD[i].DataAddr = 0; + PendingCMD[i].Block = 0; + PendingCMD[i].Page = 0; + PendingCMD[i].PageCount = 0; + PendingCMD[i].DataDestAddr = 0; + PendingCMD[i].DataSrcAddr = 0; + PendingCMD[i].MemCopyByteCnt = 0; + PendingCMD[i].ChanSync[0] = 0; + PendingCMD[i].ChanSync[1] = 0; + PendingCMD[i].ChanSync[2] = 0; + PendingCMD[i].ChanSync[3] = 0; + PendingCMD[i].ChanSync[4] = 0; + PendingCMD[i].Status = CMD_NOT_DONE; + } + + nand_dbg_print(NAND_DBG_TRACE, "At end of Execute CMDs.\n"); + + mtd_isr(0, 0); /* This is a null isr now. Need fill it in future */ + + return status; +} + +/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& +* Function: mtd_Event_Status +* Inputs: none +* Outputs: Event_Status code +* Description: This function can also be used to force errors +*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/ +u16 mtd_CDMA_Event_Status(void) +{ + nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n", + __FILE__, __LINE__, __func__); + + return EVENT_PASS; +} + +#endif /* CMD_DMA */ +#endif /* !ELDORA */ diff --git a/drivers/block/spectra/lld_mtd.h b/drivers/block/spectra/lld_mtd.h new file mode 100644 index 00000000000..4e81ee87b53 --- /dev/null +++ b/drivers/block/spectra/lld_mtd.h @@ -0,0 +1,51 @@ +/* + * 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. + * + */ + +#ifndef _LLD_MTD_ +#define _LLD_MTD_ + +#include "ffsport.h" +#include "ffsdefs.h" + +/* prototypes: MTD API functions */ +extern u16 mtd_Flash_Reset(void); +extern u16 mtd_Flash_Init(void); +extern int mtd_Flash_Release(void); +extern u16 mtd_Read_Device_ID(void); +extern u16 mtd_Erase_Block(u32 block_addr); +extern u16 mtd_Write_Page_Main(u8 *write_data, u32 Block, + u16 Page, u16 PageCount); +extern u16 mtd_Read_Page_Main(u8 *read_data, u32 Block, u16 Page, + u16 PageCount); +extern u16 mtd_Event_Status(void); +extern void mtd_Enable_Disable_Interrupts(u16 INT_ENABLE); +extern u16 mtd_Write_Page_Main_Spare(u8 *write_data, u32 Block, + u16 Page, u16 PageCount); +extern u16 mtd_Write_Page_Spare(u8 *write_data, u32 Block, + u16 Page, u16 PageCount); +extern u16 mtd_Read_Page_Main_Spare(u8 *read_data, u32 Block, + u16 Page, u16 PageCount); +extern u16 mtd_Read_Page_Spare(u8 *read_data, u32 Block, u16 Page, + u16 PageCount); +extern u16 mtd_Get_Bad_Block(u32 block); + +u16 mtd_CDMA_Flash_Init(void); +u16 mtd_CDMA_Execute_CMDs(u16 tag_count); +u16 mtd_CDMA_Event_Status(void); +#endif /*_LLD_MTD_*/ diff --git a/drivers/block/spectra/spectraswconfig.h b/drivers/block/spectra/spectraswconfig.h index 1e6afd372fe..557c091953d 100644 --- a/drivers/block/spectra/spectraswconfig.h +++ b/drivers/block/spectra/spectraswconfig.h @@ -47,6 +47,7 @@ /***** Product Feature Support *****/ #define FLASH_EMU defined(CONFIG_MRST_NAND_EMU) #define FLASH_NAND defined(CONFIG_MRST_NAND_HW) +#define FLASH_MTD defined(CONFIG_MRST_NAND_MTD) #define CMD_DMA defined(CONFIG_MRST_NAND_HW_DMA) #define SPECTRA_PARTITION_ID 0