--- /dev/null
+/*
+ * 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]"
+);
projects / u-boot.git / commitdiff