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author | Sascha Hauer <s.hauer@pengutronix.de> | 2015-07-03 08:37:36 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-07-03 08:37:36 +0200 |
commit | c5438404db8c8fecff2cd9791b8e0debe679f0d7 (patch) | |
tree | f9aceef1c34073fbf00e3bf9a17ab126b6362fbb /common | |
parent | e5ed4bea79282a629ac688daddbdd21d991e1d35 (diff) | |
parent | 6ab66787fc15a286b6142b09f9d7c2654dee78a9 (diff) | |
download | barebox-c5438404db8c8fecff2cd9791b8e0debe679f0d7.tar.gz barebox-c5438404db8c8fecff2cd9791b8e0debe679f0d7.tar.xz |
Merge branch 'for-next/imx-bbu-nand-fcb'
Conflicts:
common/Kconfig
Diffstat (limited to 'common')
-rw-r--r-- | common/Kconfig | 8 | ||||
-rw-r--r-- | common/Makefile | 1 | ||||
-rw-r--r-- | common/filetype.c | 3 | ||||
-rw-r--r-- | common/imx-bbu-nand-fcb.c | 637 |
4 files changed, 649 insertions, 0 deletions
diff --git a/common/Kconfig b/common/Kconfig index 3dfb5ac194..925fe4b331 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -97,6 +97,14 @@ config FILE_LIST config ARCH_DMA_ADDR_T_64BIT bool +config BAREBOX_UPDATE_IMX_NAND_FCB + bool + depends on ARCH_IMX6 || ARCH_IMX28 + depends on BAREBOX_UPDATE + depends on MTD_WRITE + depends on NAND_MXS + default y + menu "General Settings" config LOCALVERSION diff --git a/common/Makefile b/common/Makefile index 2738238c67..74801f7e28 100644 --- a/common/Makefile +++ b/common/Makefile @@ -52,6 +52,7 @@ lwl-$(CONFIG_IMD) += imd-barebox.o obj-$(CONFIG_IMD) += imd.o obj-$(CONFIG_FILE_LIST) += file-list.o obj-$(CONFIG_FIRMWARE) += firmware.o +obj-$(CONFIG_BAREBOX_UPDATE_IMX_NAND_FCB) += imx-bbu-nand-fcb.o quiet_cmd_pwd_h = PWDH $@ ifdef CONFIG_PASSWORD diff --git a/common/filetype.c b/common/filetype.c index 25d97614e4..28a4b2ca25 100644 --- a/common/filetype.c +++ b/common/filetype.c @@ -60,6 +60,7 @@ static const struct filetype_str filetype_str[] = { "TI OMAP CH boot image (big endian)", "ch-image-be" }, [filetype_xz_compressed] = { "XZ compressed", "xz" }, [filetype_exe] = { "MS-DOS executable", "exe" }, + [filetype_mxs_bootstream] = { "Freescale MXS bootstream", "mxsbs" }, }; const char *file_type_to_string(enum filetype f) @@ -292,6 +293,8 @@ enum filetype file_detect_type(const void *_buf, size_t bufsize) if (buf8[0] == 'M' && buf8[1] == 'Z') return filetype_exe; + if (le32_to_cpu(buf[5]) == 0x504d5453) + return filetype_mxs_bootstream; if (is_barebox_arm_head(_buf)) return filetype_arm_barebox; diff --git a/common/imx-bbu-nand-fcb.c b/common/imx-bbu-nand-fcb.c new file mode 100644 index 0000000000..22031f5b7f --- /dev/null +++ b/common/imx-bbu-nand-fcb.c @@ -0,0 +1,637 @@ +/* + * Copyright (C) 2014 Sascha Hauer, Pengutronix + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that 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. + * + */ + +#define pr_fmt(fmt) "imx-bbu-nand-fcb: " fmt + +#include <filetype.h> +#include <common.h> +#include <malloc.h> +#include <errno.h> +#include <fcntl.h> +#include <ioctl.h> +#include <linux/sizes.h> +#include <bbu.h> +#include <fs.h> +#include <linux/mtd/mtd-abi.h> +#include <linux/mtd/nand_mxs.h> +#include <linux/mtd/mtd.h> +#include <linux/stat.h> +#include <io.h> + +struct dbbt_block { + uint32_t Checksum; + uint32_t FingerPrint; + uint32_t Version; + uint32_t numberBB; /* reserved on i.MX6 */ + uint32_t DBBTNumOfPages; +}; + +struct fcb_block { + uint32_t Checksum; /* First fingerprint in first byte */ + uint32_t FingerPrint; /* 2nd fingerprint at byte 4 */ + uint32_t Version; /* 3rd fingerprint at byte 8 */ + uint8_t DataSetup; + uint8_t DataHold; + uint8_t AddressSetup; + uint8_t DSAMPLE_TIME; + /* These are for application use only and not for ROM. */ + uint8_t NandTimingState; + uint8_t REA; + uint8_t RLOH; + uint8_t RHOH; + uint32_t PageDataSize; /* 2048 for 2K pages, 4096 for 4K pages */ + uint32_t TotalPageSize; /* 2112 for 2K pages, 4314 for 4K pages */ + uint32_t SectorsPerBlock; /* Number of 2K sections per block */ + uint32_t NumberOfNANDs; /* Total Number of NANDs - not used by ROM */ + uint32_t TotalInternalDie; /* Number of separate chips in this NAND */ + uint32_t CellType; /* MLC or SLC */ + uint32_t EccBlockNEccType; /* Type of ECC, can be one of BCH-0-20 */ + uint32_t EccBlock0Size; /* Number of bytes for Block0 - BCH */ + uint32_t EccBlockNSize; /* Block size in bytes for all blocks other than Block0 - BCH */ + uint32_t EccBlock0EccType; /* Ecc level for Block 0 - BCH */ + uint32_t MetadataBytes; /* Metadata size - BCH */ + uint32_t NumEccBlocksPerPage; /* Number of blocks per page for ROM use - BCH */ + uint32_t EccBlockNEccLevelSDK; /* Type of ECC, can be one of BCH-0-20 */ + uint32_t EccBlock0SizeSDK; /* Number of bytes for Block0 - BCH */ + uint32_t EccBlockNSizeSDK; /* Block size in bytes for all blocks other than Block0 - BCH */ + uint32_t EccBlock0EccLevelSDK; /* Ecc level for Block 0 - BCH */ + uint32_t NumEccBlocksPerPageSDK;/* Number of blocks per page for SDK use - BCH */ + uint32_t MetadataBytesSDK; /* Metadata size - BCH */ + uint32_t EraseThreshold; /* To set into BCH_MODE register */ + uint32_t BootPatch; /* 0 for normal boot and 1 to load patch starting next to FCB */ + uint32_t PatchSectors; /* Size of patch in sectors */ + uint32_t Firmware1_startingPage;/* Firmware image starts on this sector */ + uint32_t Firmware2_startingPage;/* Secondary FW Image starting Sector */ + uint32_t PagesInFirmware1; /* Number of sectors in firmware image */ + uint32_t PagesInFirmware2; /* Number of sector in secondary FW image */ + uint32_t DBBTSearchAreaStartAddress; /* Page address where dbbt search area begins */ + uint32_t BadBlockMarkerByte; /* Byte in page data that have manufacturer marked bad block marker, */ + /* this will be swapped with metadata[0] to complete page data. */ + uint32_t BadBlockMarkerStartBit;/* For BCH ECC sizes other than 8 and 16 the bad block marker does not */ + /* start at 0th bit of BadBlockMarkerByte. This field is used to get to */ + /* the start bit of bad block marker byte with in BadBlockMarkerByte */ + uint32_t BBMarkerPhysicalOffset;/* FCB value that gives byte offset for bad block marker on physical NAND page */ + uint32_t BCHType; + + uint32_t TMTiming2_ReadLatency; + uint32_t TMTiming2_PreambleDelay; + uint32_t TMTiming2_CEDelay; + uint32_t TMTiming2_PostambleDelay; + uint32_t TMTiming2_CmdAddPause; + uint32_t TMTiming2_DataPause; + uint32_t TMSpeed; + uint32_t TMTiming1_BusyTimeout; + + uint32_t DISBBM; /* the flag to enable (1)/disable(0) bi swap */ + uint32_t BBMarkerPhysicalOffsetInSpareData; /* The swap position of main area in spare area */ +}; + +struct imx_nand_fcb_bbu_handler { + struct bbu_handler handler; + + void (*fcb_create)(struct imx_nand_fcb_bbu_handler *imx_handler, + struct fcb_block *fcb, struct mtd_info *mtd); + void (*dbbt_create)(struct imx_nand_fcb_bbu_handler *imx_handler, + struct dbbt_block *dbbt, int num_bad_blocks); + enum filetype filetype; +}; + +#define BF_VAL(v, bf) (((v) & bf##_MASK) >> bf##_OFFSET) +#define GETBIT(v,n) (((v) >> (n)) & 0x1) + +static uint8_t calculate_parity_13_8(uint8_t d) +{ + uint8_t p = 0; + + p |= (GETBIT(d, 6) ^ GETBIT(d, 5) ^ GETBIT(d, 3) ^ GETBIT(d, 2)) << 0; + p |= (GETBIT(d, 7) ^ GETBIT(d, 5) ^ GETBIT(d, 4) ^ GETBIT(d, 2) ^ GETBIT(d, 1)) << 1; + p |= (GETBIT(d, 7) ^ GETBIT(d, 6) ^ GETBIT(d, 5) ^ GETBIT(d, 1) ^ GETBIT(d, 0)) << 2; + p |= (GETBIT(d, 7) ^ GETBIT(d, 4) ^ GETBIT(d, 3) ^ GETBIT(d, 0)) << 3; + p |= (GETBIT(d, 6) ^ GETBIT(d, 4) ^ GETBIT(d, 3) ^ GETBIT(d, 2) ^ GETBIT(d, 1) ^ GETBIT(d, 0)) << 4; + return p; +} + +static void encode_hamming_13_8(void *_src, void *_ecc, size_t size) +{ + int i; + uint8_t *src = _src; + uint8_t *ecc = _ecc; + + for (i = 0; i < size; i++) + ecc[i] = calculate_parity_13_8(src[i]); +} + +static uint32_t calc_chksum(void *buf, size_t size) +{ + u32 chksum = 0; + u8 *bp = buf; + size_t i; + + for (i = 0; i < size; i++) + chksum += bp[i]; + + return ~chksum; +} + +static __maybe_unused void dump_fcb(void *buf) +{ + struct fcb_block *fcb = buf; + + pr_debug("Checksum: 0x%08x\n", fcb->Checksum); + pr_debug("FingerPrint: 0x%08x\n", fcb->FingerPrint); + pr_debug("Version: 0x%08x\n", fcb->Version); + pr_debug("DataSetup: 0x%02x\n", fcb->DataSetup); + pr_debug("DataHold: 0x%02x\n", fcb->DataHold); + pr_debug("AddressSetup: 0x%02x\n", fcb->AddressSetup); + pr_debug("DSAMPLE_TIME: 0x%02x\n", fcb->DSAMPLE_TIME); + pr_debug("NandTimingState: 0x%02x\n", fcb->NandTimingState); + pr_debug("REA: 0x%02x\n", fcb->REA); + pr_debug("RLOH: 0x%02x\n", fcb->RLOH); + pr_debug("RHOH: 0x%02x\n", fcb->RHOH); + pr_debug("PageDataSize: 0x%08x\n", fcb->PageDataSize); + pr_debug("TotalPageSize: 0x%08x\n", fcb->TotalPageSize); + pr_debug("SectorsPerBlock: 0x%08x\n", fcb->SectorsPerBlock); + pr_debug("NumberOfNANDs: 0x%08x\n", fcb->NumberOfNANDs); + pr_debug("TotalInternalDie: 0x%08x\n", fcb->TotalInternalDie); + pr_debug("CellType: 0x%08x\n", fcb->CellType); + pr_debug("EccBlockNEccType: 0x%08x\n", fcb->EccBlockNEccType); + pr_debug("EccBlock0Size: 0x%08x\n", fcb->EccBlock0Size); + pr_debug("EccBlockNSize: 0x%08x\n", fcb->EccBlockNSize); + pr_debug("EccBlock0EccType: 0x%08x\n", fcb->EccBlock0EccType); + pr_debug("MetadataBytes: 0x%08x\n", fcb->MetadataBytes); + pr_debug("NumEccBlocksPerPage: 0x%08x\n", fcb->NumEccBlocksPerPage); + pr_debug("EccBlockNEccLevelSDK: 0x%08x\n", fcb->EccBlockNEccLevelSDK); + pr_debug("EccBlock0SizeSDK: 0x%08x\n", fcb->EccBlock0SizeSDK); + pr_debug("EccBlockNSizeSDK: 0x%08x\n", fcb->EccBlockNSizeSDK); + pr_debug("EccBlock0EccLevelSDK: 0x%08x\n", fcb->EccBlock0EccLevelSDK); + pr_debug("NumEccBlocksPerPageSDK: 0x%08x\n", fcb->NumEccBlocksPerPageSDK); + pr_debug("MetadataBytesSDK: 0x%08x\n", fcb->MetadataBytesSDK); + pr_debug("EraseThreshold: 0x%08x\n", fcb->EraseThreshold); + pr_debug("BootPatch: 0x%08x\n", fcb->BootPatch); + pr_debug("PatchSectors: 0x%08x\n", fcb->PatchSectors); + pr_debug("Firmware1_startingPage: 0x%08x\n", fcb->Firmware1_startingPage); + pr_debug("Firmware2_startingPage: 0x%08x\n", fcb->Firmware2_startingPage); + pr_debug("PagesInFirmware1: 0x%08x\n", fcb->PagesInFirmware1); + pr_debug("PagesInFirmware2: 0x%08x\n", fcb->PagesInFirmware2); + pr_debug("DBBTSearchAreaStartAddress: 0x%08x\n", fcb->DBBTSearchAreaStartAddress); + pr_debug("BadBlockMarkerByte: 0x%08x\n", fcb->BadBlockMarkerByte); + pr_debug("BadBlockMarkerStartBit: 0x%08x\n", fcb->BadBlockMarkerStartBit); + pr_debug("BBMarkerPhysicalOffset: 0x%08x\n", fcb->BBMarkerPhysicalOffset); + pr_debug("BCHType: 0x%08x\n", fcb->BCHType); + pr_debug("TMTiming2_ReadLatency: 0x%08x\n", fcb->TMTiming2_ReadLatency); + pr_debug("TMTiming2_PreambleDelay: 0x%08x\n", fcb->TMTiming2_PreambleDelay); + pr_debug("TMTiming2_CEDelay: 0x%08x\n", fcb->TMTiming2_CEDelay); + pr_debug("TMTiming2_PostambleDelay: 0x%08x\n", fcb->TMTiming2_PostambleDelay); + pr_debug("TMTiming2_CmdAddPause: 0x%08x\n", fcb->TMTiming2_CmdAddPause); + pr_debug("TMTiming2_DataPause: 0x%08x\n", fcb->TMTiming2_DataPause); + pr_debug("TMSpeed: 0x%08x\n", fcb->TMSpeed); + pr_debug("TMTiming1_BusyTimeout: 0x%08x\n", fcb->TMTiming1_BusyTimeout); + pr_debug("DISBBM: 0x%08x\n", fcb->DISBBM); + pr_debug("BBMarkerPhysOfsInSpareData: 0x%08x\n", fcb->BBMarkerPhysicalOffsetInSpareData); +} + +static __maybe_unused ssize_t raw_read_page(struct mtd_info *mtd, void *dst, loff_t offset) +{ + struct mtd_oob_ops ops; + ssize_t ret; + + ops.mode = MTD_OPS_RAW; + ops.ooboffs = 0; + ops.datbuf = dst; + ops.len = mtd->writesize; + ops.oobbuf = dst + mtd->writesize; + ops.ooblen = mtd->oobsize; + ret = mtd_read_oob(mtd, offset, &ops); + + return ret; +} + +static ssize_t raw_write_page(struct mtd_info *mtd, void *buf, loff_t offset) +{ + struct mtd_oob_ops ops; + ssize_t ret; + + ops.mode = MTD_OPS_RAW; + ops.ooboffs = 0; + ops.datbuf = buf; + ops.len = mtd->writesize; + ops.oobbuf = buf + mtd->writesize; + ops.ooblen = mtd->oobsize; + ret = mtd_write_oob(mtd, offset, &ops); + + return ret; +} + +static int fcb_create(struct imx_nand_fcb_bbu_handler *imx_handler, + struct fcb_block *fcb, struct mtd_info *mtd) +{ + fcb->FingerPrint = 0x20424346; + fcb->Version = 0x01000000; + fcb->PageDataSize = mtd->writesize; + fcb->TotalPageSize = mtd->writesize + mtd->oobsize; + fcb->SectorsPerBlock = mtd->erasesize / mtd->writesize; + + /* Divide ECC strength by two and save the value into FCB structure. */ + fcb->EccBlock0EccType = + mxs_nand_get_ecc_strength(mtd->writesize, mtd->oobsize) >> 1; + fcb->EccBlockNEccType = fcb->EccBlock0EccType; + + fcb->EccBlock0Size = 0x00000200; + fcb->EccBlockNSize = 0x00000200; + + fcb->NumEccBlocksPerPage = mtd->writesize / fcb->EccBlock0Size - 1; + + /* DBBT search area starts at second page on first block */ + fcb->DBBTSearchAreaStartAddress = 1; + + fcb->BadBlockMarkerByte = mxs_nand_mark_byte_offset(mtd); + fcb->BadBlockMarkerStartBit = mxs_nand_mark_bit_offset(mtd); + + fcb->BBMarkerPhysicalOffset = mtd->writesize; + + imx_handler->fcb_create(imx_handler, fcb, mtd); + + fcb->Checksum = calc_chksum((void *)fcb + 4, sizeof(*fcb) - 4); + + return 0; +} + +static int imx_bbu_erase(struct mtd_info *mtd) +{ + uint64_t offset = 0; + struct erase_info erase; + int ret; + + while (offset < mtd->size) { + pr_debug("erasing at 0x%08llx\n", offset); + if (mtd_block_isbad(mtd, offset)) { + pr_debug("erase skip block @ 0x%08llx\n", offset); + offset += mtd->erasesize; + continue; + } + + memset(&erase, 0, sizeof(erase)); + erase.addr = offset; + erase.len = mtd->erasesize; + + ret = mtd_erase(mtd, &erase); + if (ret) + return ret; + + offset += mtd->erasesize; + } + + return 0; +} + +static int imx_bbu_write_firmware(struct mtd_info *mtd, unsigned block, + unsigned num_blocks, void *buf, size_t len) +{ + uint64_t offset = block * mtd->erasesize; + int ret; + size_t written; + + while (len > 0) { + int now = min(len, mtd->erasesize); + + if (!num_blocks) + return -ENOSPC; + + pr_debug("writing %p at 0x%08llx, left 0x%08x\n", + buf, offset, len); + + if (mtd_block_isbad(mtd, offset)) { + pr_debug("write skip block @ 0x%08llx\n", offset); + offset += mtd->erasesize; + block++; + continue; + } + + ret = mtd_write(mtd, offset, now, &written, buf); + if (ret) + return ret; + + offset += now; + len -= now; + buf += now; + block++; + num_blocks--; + } + + return block; +} + +static int dbbt_data_create(struct mtd_info *mtd, void *buf, int block_last) +{ + int n; + int n_bad_blocks = 0; + uint32_t *bb = buf + 0x8; + uint32_t *n_bad_blocksp = buf + 0x4; + + for (n = 0; n <= block_last; n++) { + loff_t offset = n * mtd->erasesize; + if (mtd_block_isbad(mtd, offset)) { + n_bad_blocks++; + *bb = n; + bb++; + } + } + + *n_bad_blocksp = n_bad_blocks; + + return n_bad_blocks; +} + +static int imx_bbu_nand_update(struct bbu_handler *handler, struct bbu_data *data) +{ + struct imx_nand_fcb_bbu_handler *imx_handler = + container_of(handler, struct imx_nand_fcb_bbu_handler, handler); + struct cdev *bcb_cdev; + struct mtd_info *mtd; + int ret, block_fw1, block_fw2; + struct fcb_block *fcb; + struct dbbt_block *dbbt; + void *fcb_raw_page, *dbbt_page, *dbbt_data_page; + void *ecc; + int written; + void *fw; + unsigned fw_size, partition_size; + int i; + enum filetype filetype; + unsigned num_blocks_fcb_dbbt, num_blocks, num_blocks_fw; + + filetype = file_detect_type(data->image, data->len); + + if (filetype != imx_handler->filetype && + !bbu_force(data, "Image is not of type %s but of type %s", + file_type_to_string(imx_handler->filetype), + file_type_to_string(filetype))) + return -EINVAL; + + bcb_cdev = cdev_by_name(handler->devicefile); + if (!bcb_cdev) { + pr_err("%s: No FCB device!\n", __func__); + return -ENODEV; + } + + mtd = bcb_cdev->mtd; + partition_size = mtd->size; + + fcb_raw_page = xzalloc(mtd->writesize + mtd->oobsize); + + fcb = fcb_raw_page + 12; + ecc = fcb_raw_page + 512 + 12; + + dbbt_page = xzalloc(mtd->writesize); + dbbt_data_page = xzalloc(mtd->writesize); + dbbt = dbbt_page; + + /* + * We have to write one additional page to make the ROM happy. + * Maybe the PagesInFirmwarex fields are really the number of pages - 1. + * kobs-ng has the same. + */ + fw_size = ALIGN(data->len + mtd->writesize, mtd->writesize); + fw = xzalloc(fw_size); + memcpy(fw, data->image, data->len); + + num_blocks_fcb_dbbt = 4; + num_blocks = partition_size / mtd->erasesize; + num_blocks_fw = (num_blocks - num_blocks_fcb_dbbt) / 2; + + block_fw1 = num_blocks_fcb_dbbt; + block_fw2 = num_blocks_fcb_dbbt + num_blocks_fw; + + pr_info("writing first firmware to block %d (ofs 0x%08x)\n", + block_fw1, block_fw1 * mtd->erasesize); + pr_info("writing second firmware to block %d (ofs 0x%08x)\n", + block_fw2, block_fw2 * mtd->erasesize); + pr_info("maximum size per firmware: 0x%08x bytes\n", + num_blocks_fw * mtd->erasesize); + + if (num_blocks_fw * mtd->erasesize < fw_size) + return -ENOSPC; + + ret = bbu_confirm(data); + if (ret) + goto out; + + ret = imx_bbu_erase(mtd); + if (ret) + goto out; + + ret = imx_bbu_write_firmware(mtd, block_fw1, num_blocks_fw, fw, fw_size); + if (ret < 0) + goto out; + + ret = imx_bbu_write_firmware(mtd, block_fw2, num_blocks_fw, fw, fw_size); + if (ret < 0) + goto out; + + fcb->Firmware1_startingPage = block_fw1 * mtd->erasesize / mtd->writesize; + fcb->Firmware2_startingPage = block_fw2 * mtd->erasesize / mtd->writesize; + fcb->PagesInFirmware1 = ALIGN(data->len, mtd->writesize) / mtd->writesize; + fcb->PagesInFirmware2 = fcb->PagesInFirmware1; + + fcb_create(imx_handler, fcb, mtd); + encode_hamming_13_8(fcb, ecc, 512); + + /* + * Set the first and second byte of OOB data to 0xFF, not 0x00. These + * bytes are used as the Manufacturers Bad Block Marker (MBBM). Since + * the FCB is mostly written to the first page in a block, a scan for + * factory bad blocks will detect these blocks as bad, e.g. when + * function nand_scan_bbt() is executed to build a new bad block table. + */ + memset(fcb_raw_page + mtd->writesize, 0xFF, 2); + + ret = raw_write_page(mtd, fcb_raw_page, mtd->erasesize); + if (ret) + goto out; + + dbbt->Checksum = 0; + dbbt->FingerPrint = 0x54424244; + dbbt->Version = 0x01000000; + + ret = dbbt_data_create(mtd, dbbt_data_page, block_fw2 + num_blocks_fw); + if (ret < 0) + goto out; + + if (ret > 0) { + dbbt->DBBTNumOfPages = 1; + if (imx_handler->dbbt_create) + imx_handler->dbbt_create(imx_handler, dbbt, ret); + } + + for (i = 0; i < 4; i++) { + ret = raw_write_page(mtd, fcb_raw_page, mtd->erasesize * i); + if (ret) + goto out; + + ret = mtd_write(mtd, mtd->erasesize * i + mtd->writesize, + mtd->writesize, &written, dbbt_page); + if (ret) + goto out; + + if (dbbt->DBBTNumOfPages > 0) { + ret = mtd_write(mtd, mtd->erasesize * i + mtd->writesize * 5, + mtd->writesize, &written, dbbt_data_page); + if (ret) + goto out; + } + } + +out: + free(dbbt_page); + free(dbbt_data_page); + free(fcb_raw_page); + free(fw); + + return ret; +} + +static void imx6_fcb_create(struct imx_nand_fcb_bbu_handler *imx_handler, + struct fcb_block *fcb, struct mtd_info *mtd) +{ + /* Also hardcoded in kobs-ng */ + fcb->DataSetup = 80; + fcb->DataHold = 60; + fcb->AddressSetup = 25; + fcb->DSAMPLE_TIME = 6; + fcb->MetadataBytes = 10; +} + +int imx6_bbu_nand_register_handler(const char *name, unsigned long flags) +{ + struct imx_nand_fcb_bbu_handler *imx_handler; + struct bbu_handler *handler; + int ret; + + imx_handler = xzalloc(sizeof(*imx_handler)); + imx_handler->fcb_create = imx6_fcb_create; + imx_handler->filetype = filetype_arm_barebox; + + handler = &imx_handler->handler; + handler->devicefile = "nand0.barebox"; + handler->name = name; + handler->flags = flags; + handler->handler = imx_bbu_nand_update; + + ret = bbu_register_handler(handler); + if (ret) + free(handler); + + return ret; +} + +#ifdef CONFIG_ARCH_IMX28 +#include <mach/imx28-regs.h> + +#define GPMI_TIMING0 0x00000070 +#define GPMI_TIMING0_ADDRESS_SETUP_MASK (0xff << 16) +#define GPMI_TIMING0_ADDRESS_SETUP_OFFSET 16 +#define GPMI_TIMING0_DATA_HOLD_MASK (0xff << 8) +#define GPMI_TIMING0_DATA_HOLD_OFFSET 8 +#define GPMI_TIMING0_DATA_SETUP_MASK 0xff +#define GPMI_TIMING0_DATA_SETUP_OFFSET 0 + +#define GPMI_TIMING1 0x00000080 + +#define BCH_MODE 0x00000020 + +#define BCH_FLASH0LAYOUT0 0x00000080 +#define BCH_FLASHLAYOUT0_NBLOCKS_MASK (0xff << 24) +#define BCH_FLASHLAYOUT0_NBLOCKS_OFFSET 24 +#define BCH_FLASHLAYOUT0_META_SIZE_MASK (0xff << 16) +#define BCH_FLASHLAYOUT0_META_SIZE_OFFSET 16 +#define BCH_FLASHLAYOUT0_ECC0_MASK (0xf << 12) +#define BCH_FLASHLAYOUT0_ECC0_OFFSET 12 +#define BCH_FLASHLAYOUT0_DATA0_SIZE_MASK 0xfff +#define BCH_FLASHLAYOUT0_DATA0_SIZE_OFFSET 0 + +#define BCH_FLASH0LAYOUT1 0x00000090 +#define BCH_FLASHLAYOUT1_PAGE_SIZE_MASK (0xffff << 16) +#define BCH_FLASHLAYOUT1_PAGE_SIZE_OFFSET 16 +#define BCH_FLASHLAYOUT1_ECCN_MASK (0xf << 12) +#define BCH_FLASHLAYOUT1_ECCN_OFFSET 12 +#define BCH_FLASHLAYOUT1_DATAN_SIZE_MASK 0xfff +#define BCH_FLASHLAYOUT1_DATAN_SIZE_OFFSET 0 + +static void imx28_fcb_create(struct imx_nand_fcb_bbu_handler *imx_handler, + struct fcb_block *fcb, struct mtd_info *mtd) +{ + u32 fl0, fl1, t0; + void __iomem *bch_regs = (void *)MXS_BCH_BASE; + void __iomem *gpmi_regs = (void *)MXS_GPMI_BASE; + + fl0 = readl(bch_regs + BCH_FLASH0LAYOUT0); + fl1 = readl(bch_regs + BCH_FLASH0LAYOUT1); + t0 = readl(gpmi_regs + GPMI_TIMING0); + + fcb->MetadataBytes = BF_VAL(fl0, BCH_FLASHLAYOUT0_META_SIZE); + fcb->DataSetup = BF_VAL(t0, GPMI_TIMING0_DATA_SETUP); + fcb->DataHold = BF_VAL(t0, GPMI_TIMING0_DATA_HOLD); + fcb->AddressSetup = BF_VAL(t0, GPMI_TIMING0_ADDRESS_SETUP); + fcb->MetadataBytes = BF_VAL(fl0, BCH_FLASHLAYOUT0_META_SIZE); + fcb->NumEccBlocksPerPage = BF_VAL(fl0, BCH_FLASHLAYOUT0_NBLOCKS); + fcb->EraseThreshold = readl(bch_regs + BCH_MODE); +} + +static void imx28_dbbt_create(struct imx_nand_fcb_bbu_handler *imx_handler, + struct dbbt_block *dbbt, int num_bad_blocks) +{ + uint32_t a = 0; + uint8_t *p = (void *)dbbt; + int i; + + dbbt->numberBB = num_bad_blocks; + + for (i = 4; i < 512; i++) + a += p[i]; + + a ^= 0xffffffff; + + dbbt->Checksum = a; +} + +int imx28_bbu_nand_register_handler(const char *name, unsigned long flags) +{ + struct imx_nand_fcb_bbu_handler *imx_handler; + struct bbu_handler *handler; + int ret; + + imx_handler = xzalloc(sizeof(*imx_handler)); + imx_handler->fcb_create = imx28_fcb_create; + imx_handler->dbbt_create = imx28_dbbt_create; + + imx_handler->filetype = filetype_mxs_bootstream; + + handler = &imx_handler->handler; + handler->devicefile = "nand0.barebox"; + handler->name = name; + handler->flags = flags; + handler->handler = imx_bbu_nand_update; + + ret = bbu_register_handler(handler); + if (ret) + free(handler); + + return ret; +} +#endif |