diff options
Diffstat (limited to 'arch/arm/imx-common/cmd_writebcb.c')
| -rw-r--r-- | arch/arm/imx-common/cmd_writebcb.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/arch/arm/imx-common/cmd_writebcb.c b/arch/arm/imx-common/cmd_writebcb.c new file mode 100644 index 0000000000..1ee497f110 --- /dev/null +++ b/arch/arm/imx-common/cmd_writebcb.c @@ -0,0 +1,187 @@ +/* + * Copyright (c) 2013, Toradex AG. All rights reserved. + * + * Derived from downstream U-Boot (drivers/mtd/nand/fsl_nfc.c) + * and mxsboot + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <nand.h> +#include <malloc.h> + +struct mxs_nand_fcb { + uint32_t checksum; + uint32_t fingerprint; + uint32_t version; + struct { + uint8_t data_setup; + uint8_t data_hold; + uint8_t address_setup; + uint8_t dsample_time; + uint8_t nand_timing_state; + uint8_t rea; + uint8_t rloh; + uint8_t rhoh; + } timing; + uint32_t page_data_size; + uint32_t total_page_size; + uint32_t sectors_per_block; + uint32_t number_of_nands; /* Ignored */ + uint32_t total_internal_die; /* Ignored */ + uint32_t cell_type; /* Ignored */ + uint32_t ecc_block_n_ecc_type; + uint32_t ecc_block_0_size; + uint32_t ecc_block_n_size; + uint32_t ecc_block_0_ecc_type; + uint32_t metadata_bytes; + uint32_t num_ecc_blocks_per_page; + uint32_t ecc_block_n_ecc_level_sdk; /* Ignored */ + uint32_t ecc_block_0_size_sdk; /* Ignored */ + uint32_t ecc_block_n_size_sdk; /* Ignored */ + uint32_t ecc_block_0_ecc_level_sdk; /* Ignored */ + uint32_t num_ecc_blocks_per_page_sdk; /* Ignored */ + uint32_t metadata_bytes_sdk; /* Ignored */ + uint32_t erase_threshold; + uint32_t boot_patch; + uint32_t patch_sectors; + uint32_t firmware1_starting_sector; + uint32_t firmware2_starting_sector; + uint32_t sectors_in_firmware1; + uint32_t sectors_in_firmware2; + uint32_t dbbt_search_area_start_address; + uint32_t badblock_marker_byte; + uint32_t badblock_marker_start_bit; + uint32_t bb_marker_physical_offset; + uint32_t reserved1[9]; + uint32_t disbbm; + uint32_t reserved2[10]; + uint32_t disbbm_search; + uint32_t disbbm_search_limit; +}; + +struct mxs_nand_dbbt { + uint32_t checksum; + uint32_t fingerprint; + uint32_t version; + uint32_t number_bb; + uint32_t number_2k_pages_bb; +}; + +struct mxs_nand_bbt { + uint32_t nand; + uint32_t number_bb; + uint32_t badblock[510]; +}; + +static inline uint8_t parity_13_8(const uint8_t b) +{ + uint32_t parity = 0, tmp; + + tmp = ((b >> 6) ^ (b >> 5) ^ (b >> 3) ^ (b >> 2)) & 1; + parity |= tmp << 0; + + tmp = ((b >> 7) ^ (b >> 5) ^ (b >> 4) ^ (b >> 2) ^ (b >> 1)) & 1; + parity |= tmp << 1; + + tmp = ((b >> 7) ^ (b >> 6) ^ (b >> 5) ^ (b >> 1) ^ (b >> 0)) & 1; + parity |= tmp << 2; + + tmp = ((b >> 7) ^ (b >> 4) ^ (b >> 3) ^ (b >> 0)) & 1; + parity |= tmp << 3; + + tmp = ((b >> 6) ^ (b >> 4) ^ (b >> 3) ^ + (b >> 2) ^ (b >> 1) ^ (b >> 0)) & 1; + parity |= tmp << 4; + + return parity; +} + +static void create_fcb(nand_info_t *nand, uint8_t *buf, int fw1_start_address, + int fw2_start_address) +{ + int i; + uint8_t *ecc; + struct mxs_nand_fcb *fcb = (struct mxs_nand_fcb *)buf; + + fcb->fingerprint = 0x46434220; + fcb->version = 0x00000001; + + fcb->page_data_size = nand->writesize; + fcb->total_page_size = nand->writesize + nand->oobsize; + fcb->sectors_per_block = nand->erasesize / nand->writesize; + + /* 45 or 60-bytes BCH ECC, also used by Linux/U-Boot */ +#if defined(CONFIG_SYS_NAND_VF610_NFC_45_ECC_BYTES) + fcb->ecc_block_0_ecc_type = 6; +#elif defined(CONFIG_SYS_NAND_VF610_NFC_60_ECC_BYTES) + fcb->ecc_block_0_ecc_type = 7; +#endif + + fcb->firmware1_starting_sector = fw1_start_address / nand->writesize; + fcb->firmware2_starting_sector = fw2_start_address / nand->writesize; + + fcb->dbbt_search_area_start_address = 0; + + /* This is typically the first byte of the pages OOB area */ + fcb->bb_marker_physical_offset = nand->writesize; + + /* + * Enable swapping of bad block marker byte (required for boot ROM in + * order to detect factory marked bad blocks) + */ + fcb->disbbm = 0; + + fcb->disbbm_search = 0; + fcb->disbbm_search_limit = 8; + + ecc = buf + 512; + + for (i = 0; i < sizeof(struct mxs_nand_fcb); i++) + ecc[i] = parity_13_8(buf[i]); +} + +static int do_write_bcb(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + int ret; + nand_info_t *nand; + int dev = nand_curr_device; + ulong off = 0; + uint8_t *buf; + size_t rwsize, maxsize; + ulong fw1_off, fw2_off = 0; + + if (argc < 2) + return -1; + + fw1_off = simple_strtoul(argv[1], NULL, 16); + if (argc > 2) + fw2_off = simple_strtoul(argv[2], NULL, 16); + + nand = &nand_info[dev]; + + /* Allocate one page, should be enought */ + rwsize = nand->writesize; + buf = malloc(nand->writesize); + + /* Set only the first page empty... */ + memset(buf, 0, nand->writesize); + + create_fcb(nand, buf, fw1_off, fw2_off); + + puts("Write FCB...\n"); + rwsize = maxsize = nand->writesize; + ret = nand_write(nand, off, &rwsize, (unsigned char *)buf); + + printf("FCB %d bytes written to 0x0: %s\n", rwsize, + ret ? "ERROR" : "OK"); + return 0; +} + +U_BOOT_CMD( + writebcb, 3, 0, do_write_bcb, + "Write Boot Control Block (FCB and DBBT)", + "fw1-off [fw2-off]" +); |