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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 19:29:37 +00:00
mtd: rawnand: Move ONFI code to nand_onfi.c
This moves ONFI related code to nand_onfi.c and ONFI related struct/macros to include/linux/mtd/onfi.h. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
parent
3d4af7c195
commit
1c325cc507
6 changed files with 496 additions and 455 deletions
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@ -58,6 +58,7 @@ obj-$(CONFIG_MTD_NAND_MTK) += mtk_ecc.o mtk_nand.o
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obj-$(CONFIG_MTD_NAND_TEGRA) += tegra_nand.o
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nand-objs := nand_base.o nand_legacy.o nand_bbt.o nand_timings.o nand_ids.o
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nand-objs += nand_onfi.o
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nand-objs += nand_amd.o
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nand-objs += nand_hynix.o
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nand-objs += nand_macronix.o
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@ -88,8 +88,11 @@ int nand_read_page_raw_notsupp(struct nand_chip *chip, u8 *buf,
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int nand_write_page_raw_notsupp(struct nand_chip *chip, const u8 *buf,
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int oob_required, int page);
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int nand_exit_status_op(struct nand_chip *chip);
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int nand_read_param_page_op(struct nand_chip *chip, u8 page, void *buf,
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unsigned int len);
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void nand_decode_ext_id(struct nand_chip *chip);
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void panic_nand_wait(struct nand_chip *chip, unsigned long timeo);
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void sanitize_string(uint8_t *s, size_t len);
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/* BBT functions */
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int nand_markbad_bbt(struct nand_chip *chip, loff_t offs);
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@ -101,4 +104,8 @@ void nand_legacy_set_defaults(struct nand_chip *chip);
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void nand_legacy_adjust_cmdfunc(struct nand_chip *chip);
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int nand_legacy_check_hooks(struct nand_chip *chip);
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/* ONFI functions */
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u16 onfi_crc16(u16 crc, u8 const *p, size_t len);
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int nand_onfi_detect(struct nand_chip *chip);
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#endif /* __LINUX_RAWNAND_INTERNALS */
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@ -986,8 +986,8 @@ EXPORT_SYMBOL_GPL(nand_read_page_op);
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*
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* Returns 0 on success, a negative error code otherwise.
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*/
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static int nand_read_param_page_op(struct nand_chip *chip, u8 page, void *buf,
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unsigned int len)
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int nand_read_param_page_op(struct nand_chip *chip, u8 page, void *buf,
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unsigned int len)
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{
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unsigned int i;
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u8 *p = buf;
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@ -4370,7 +4370,7 @@ static void nand_set_defaults(struct nand_chip *chip)
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}
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/* Sanitize ONFI strings so we can safely print them */
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static void sanitize_string(uint8_t *s, size_t len)
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void sanitize_string(uint8_t *s, size_t len)
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{
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ssize_t i;
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@ -4387,294 +4387,6 @@ static void sanitize_string(uint8_t *s, size_t len)
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strim(s);
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}
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static u16 onfi_crc16(u16 crc, u8 const *p, size_t len)
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{
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int i;
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while (len--) {
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crc ^= *p++ << 8;
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for (i = 0; i < 8; i++)
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crc = (crc << 1) ^ ((crc & 0x8000) ? 0x8005 : 0);
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}
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return crc;
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}
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/* Parse the Extended Parameter Page. */
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static int nand_flash_detect_ext_param_page(struct nand_chip *chip,
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struct nand_onfi_params *p)
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{
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struct onfi_ext_param_page *ep;
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struct onfi_ext_section *s;
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struct onfi_ext_ecc_info *ecc;
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uint8_t *cursor;
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int ret;
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int len;
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int i;
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len = le16_to_cpu(p->ext_param_page_length) * 16;
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ep = kmalloc(len, GFP_KERNEL);
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if (!ep)
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return -ENOMEM;
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/* Send our own NAND_CMD_PARAM. */
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ret = nand_read_param_page_op(chip, 0, NULL, 0);
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if (ret)
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goto ext_out;
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/* Use the Change Read Column command to skip the ONFI param pages. */
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ret = nand_change_read_column_op(chip,
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sizeof(*p) * p->num_of_param_pages,
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ep, len, true);
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if (ret)
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goto ext_out;
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ret = -EINVAL;
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if ((onfi_crc16(ONFI_CRC_BASE, ((uint8_t *)ep) + 2, len - 2)
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!= le16_to_cpu(ep->crc))) {
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pr_debug("fail in the CRC.\n");
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goto ext_out;
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}
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/*
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* Check the signature.
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* Do not strictly follow the ONFI spec, maybe changed in future.
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*/
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if (strncmp(ep->sig, "EPPS", 4)) {
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pr_debug("The signature is invalid.\n");
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goto ext_out;
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}
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/* find the ECC section. */
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cursor = (uint8_t *)(ep + 1);
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for (i = 0; i < ONFI_EXT_SECTION_MAX; i++) {
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s = ep->sections + i;
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if (s->type == ONFI_SECTION_TYPE_2)
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break;
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cursor += s->length * 16;
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}
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if (i == ONFI_EXT_SECTION_MAX) {
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pr_debug("We can not find the ECC section.\n");
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goto ext_out;
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}
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/* get the info we want. */
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ecc = (struct onfi_ext_ecc_info *)cursor;
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if (!ecc->codeword_size) {
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pr_debug("Invalid codeword size\n");
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goto ext_out;
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}
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chip->ecc_strength_ds = ecc->ecc_bits;
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chip->ecc_step_ds = 1 << ecc->codeword_size;
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ret = 0;
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ext_out:
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kfree(ep);
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return ret;
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}
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/*
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* Recover data with bit-wise majority
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*/
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static void nand_bit_wise_majority(const void **srcbufs,
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unsigned int nsrcbufs,
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void *dstbuf,
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unsigned int bufsize)
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{
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int i, j, k;
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for (i = 0; i < bufsize; i++) {
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u8 val = 0;
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for (j = 0; j < 8; j++) {
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unsigned int cnt = 0;
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for (k = 0; k < nsrcbufs; k++) {
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const u8 *srcbuf = srcbufs[k];
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if (srcbuf[i] & BIT(j))
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cnt++;
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}
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if (cnt > nsrcbufs / 2)
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val |= BIT(j);
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}
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((u8 *)dstbuf)[i] = val;
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}
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}
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/*
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* Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise.
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*/
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static int nand_flash_detect_onfi(struct nand_chip *chip)
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{
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struct mtd_info *mtd = nand_to_mtd(chip);
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struct nand_onfi_params *p;
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struct onfi_params *onfi;
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int onfi_version = 0;
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char id[4];
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int i, ret, val;
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/* Try ONFI for unknown chip or LP */
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ret = nand_readid_op(chip, 0x20, id, sizeof(id));
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if (ret || strncmp(id, "ONFI", 4))
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return 0;
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/* ONFI chip: allocate a buffer to hold its parameter page */
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p = kzalloc((sizeof(*p) * 3), GFP_KERNEL);
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if (!p)
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return -ENOMEM;
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ret = nand_read_param_page_op(chip, 0, NULL, 0);
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if (ret) {
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ret = 0;
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goto free_onfi_param_page;
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}
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for (i = 0; i < 3; i++) {
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ret = nand_read_data_op(chip, &p[i], sizeof(*p), true);
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if (ret) {
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ret = 0;
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goto free_onfi_param_page;
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}
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if (onfi_crc16(ONFI_CRC_BASE, (u8 *)&p[i], 254) ==
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le16_to_cpu(p->crc)) {
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if (i)
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memcpy(p, &p[i], sizeof(*p));
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break;
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}
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}
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if (i == 3) {
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const void *srcbufs[3] = {p, p + 1, p + 2};
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pr_warn("Could not find a valid ONFI parameter page, trying bit-wise majority to recover it\n");
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nand_bit_wise_majority(srcbufs, ARRAY_SIZE(srcbufs), p,
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sizeof(*p));
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if (onfi_crc16(ONFI_CRC_BASE, (u8 *)p, 254) !=
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le16_to_cpu(p->crc)) {
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pr_err("ONFI parameter recovery failed, aborting\n");
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goto free_onfi_param_page;
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}
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}
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if (chip->manufacturer.desc && chip->manufacturer.desc->ops &&
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chip->manufacturer.desc->ops->fixup_onfi_param_page)
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chip->manufacturer.desc->ops->fixup_onfi_param_page(chip, p);
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/* Check version */
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val = le16_to_cpu(p->revision);
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if (val & ONFI_VERSION_2_3)
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onfi_version = 23;
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else if (val & ONFI_VERSION_2_2)
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onfi_version = 22;
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else if (val & ONFI_VERSION_2_1)
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onfi_version = 21;
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else if (val & ONFI_VERSION_2_0)
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onfi_version = 20;
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else if (val & ONFI_VERSION_1_0)
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onfi_version = 10;
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if (!onfi_version) {
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pr_info("unsupported ONFI version: %d\n", val);
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goto free_onfi_param_page;
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}
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sanitize_string(p->manufacturer, sizeof(p->manufacturer));
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sanitize_string(p->model, sizeof(p->model));
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chip->parameters.model = kstrdup(p->model, GFP_KERNEL);
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if (!chip->parameters.model) {
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ret = -ENOMEM;
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goto free_onfi_param_page;
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}
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mtd->writesize = le32_to_cpu(p->byte_per_page);
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/*
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* pages_per_block and blocks_per_lun may not be a power-of-2 size
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* (don't ask me who thought of this...). MTD assumes that these
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* dimensions will be power-of-2, so just truncate the remaining area.
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*/
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mtd->erasesize = 1 << (fls(le32_to_cpu(p->pages_per_block)) - 1);
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mtd->erasesize *= mtd->writesize;
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mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page);
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/* See erasesize comment */
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chip->chipsize = 1 << (fls(le32_to_cpu(p->blocks_per_lun)) - 1);
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chip->chipsize *= (uint64_t)mtd->erasesize * p->lun_count;
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chip->bits_per_cell = p->bits_per_cell;
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chip->max_bb_per_die = le16_to_cpu(p->bb_per_lun);
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chip->blocks_per_die = le32_to_cpu(p->blocks_per_lun);
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if (le16_to_cpu(p->features) & ONFI_FEATURE_16_BIT_BUS)
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chip->options |= NAND_BUSWIDTH_16;
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if (p->ecc_bits != 0xff) {
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chip->ecc_strength_ds = p->ecc_bits;
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chip->ecc_step_ds = 512;
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} else if (onfi_version >= 21 &&
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(le16_to_cpu(p->features) & ONFI_FEATURE_EXT_PARAM_PAGE)) {
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/*
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* The nand_flash_detect_ext_param_page() uses the
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* Change Read Column command which maybe not supported
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* by the chip->legacy.cmdfunc. So try to update the
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* chip->legacy.cmdfunc now. We do not replace user supplied
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* command function.
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*/
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nand_legacy_adjust_cmdfunc(chip);
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/* The Extended Parameter Page is supported since ONFI 2.1. */
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if (nand_flash_detect_ext_param_page(chip, p))
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pr_warn("Failed to detect ONFI extended param page\n");
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} else {
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pr_warn("Could not retrieve ONFI ECC requirements\n");
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}
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/* Save some parameters from the parameter page for future use */
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if (le16_to_cpu(p->opt_cmd) & ONFI_OPT_CMD_SET_GET_FEATURES) {
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chip->parameters.supports_set_get_features = true;
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bitmap_set(chip->parameters.get_feature_list,
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ONFI_FEATURE_ADDR_TIMING_MODE, 1);
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bitmap_set(chip->parameters.set_feature_list,
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ONFI_FEATURE_ADDR_TIMING_MODE, 1);
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}
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onfi = kzalloc(sizeof(*onfi), GFP_KERNEL);
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if (!onfi) {
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ret = -ENOMEM;
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goto free_model;
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}
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onfi->version = onfi_version;
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onfi->tPROG = le16_to_cpu(p->t_prog);
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onfi->tBERS = le16_to_cpu(p->t_bers);
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onfi->tR = le16_to_cpu(p->t_r);
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onfi->tCCS = le16_to_cpu(p->t_ccs);
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onfi->async_timing_mode = le16_to_cpu(p->async_timing_mode);
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onfi->vendor_revision = le16_to_cpu(p->vendor_revision);
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memcpy(onfi->vendor, p->vendor, sizeof(p->vendor));
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chip->parameters.onfi = onfi;
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/* Identification done, free the full ONFI parameter page and exit */
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kfree(p);
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return 1;
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free_model:
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kfree(chip->parameters.model);
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free_onfi_param_page:
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kfree(p);
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return ret;
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}
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/*
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* Check if the NAND chip is JEDEC compliant, returns 1 if it is, 0 otherwise.
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*/
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@ -5076,7 +4788,7 @@ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type)
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if (!type->name || !type->pagesize) {
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/* Check if the chip is ONFI compliant */
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ret = nand_flash_detect_onfi(chip);
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ret = nand_onfi_detect(chip);
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if (ret < 0)
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return ret;
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else if (ret)
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305
drivers/mtd/nand/raw/nand_onfi.c
Normal file
305
drivers/mtd/nand/raw/nand_onfi.c
Normal file
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@ -0,0 +1,305 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
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* 2002-2006 Thomas Gleixner (tglx@linutronix.de)
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*
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* Credits:
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* David Woodhouse for adding multichip support
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*
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* Aleph One Ltd. and Toby Churchill Ltd. for supporting the
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* rework for 2K page size chips
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*
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* This file contains all ONFI helpers.
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*/
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#include <linux/slab.h>
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#include "internals.h"
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u16 onfi_crc16(u16 crc, u8 const *p, size_t len)
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{
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int i;
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while (len--) {
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crc ^= *p++ << 8;
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for (i = 0; i < 8; i++)
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crc = (crc << 1) ^ ((crc & 0x8000) ? 0x8005 : 0);
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}
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return crc;
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}
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/* Parse the Extended Parameter Page. */
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static int nand_flash_detect_ext_param_page(struct nand_chip *chip,
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struct nand_onfi_params *p)
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{
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struct onfi_ext_param_page *ep;
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struct onfi_ext_section *s;
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struct onfi_ext_ecc_info *ecc;
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uint8_t *cursor;
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int ret;
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int len;
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int i;
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len = le16_to_cpu(p->ext_param_page_length) * 16;
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ep = kmalloc(len, GFP_KERNEL);
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if (!ep)
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return -ENOMEM;
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/* Send our own NAND_CMD_PARAM. */
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ret = nand_read_param_page_op(chip, 0, NULL, 0);
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if (ret)
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goto ext_out;
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/* Use the Change Read Column command to skip the ONFI param pages. */
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ret = nand_change_read_column_op(chip,
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sizeof(*p) * p->num_of_param_pages,
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ep, len, true);
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if (ret)
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goto ext_out;
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ret = -EINVAL;
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if ((onfi_crc16(ONFI_CRC_BASE, ((uint8_t *)ep) + 2, len - 2)
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!= le16_to_cpu(ep->crc))) {
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pr_debug("fail in the CRC.\n");
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goto ext_out;
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}
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/*
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* Check the signature.
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* Do not strictly follow the ONFI spec, maybe changed in future.
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*/
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if (strncmp(ep->sig, "EPPS", 4)) {
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pr_debug("The signature is invalid.\n");
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goto ext_out;
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}
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/* find the ECC section. */
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cursor = (uint8_t *)(ep + 1);
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for (i = 0; i < ONFI_EXT_SECTION_MAX; i++) {
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s = ep->sections + i;
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if (s->type == ONFI_SECTION_TYPE_2)
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break;
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cursor += s->length * 16;
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}
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if (i == ONFI_EXT_SECTION_MAX) {
|
||||
pr_debug("We can not find the ECC section.\n");
|
||||
goto ext_out;
|
||||
}
|
||||
|
||||
/* get the info we want. */
|
||||
ecc = (struct onfi_ext_ecc_info *)cursor;
|
||||
|
||||
if (!ecc->codeword_size) {
|
||||
pr_debug("Invalid codeword size\n");
|
||||
goto ext_out;
|
||||
}
|
||||
|
||||
chip->ecc_strength_ds = ecc->ecc_bits;
|
||||
chip->ecc_step_ds = 1 << ecc->codeword_size;
|
||||
ret = 0;
|
||||
|
||||
ext_out:
|
||||
kfree(ep);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Recover data with bit-wise majority
|
||||
*/
|
||||
static void nand_bit_wise_majority(const void **srcbufs,
|
||||
unsigned int nsrcbufs,
|
||||
void *dstbuf,
|
||||
unsigned int bufsize)
|
||||
{
|
||||
int i, j, k;
|
||||
|
||||
for (i = 0; i < bufsize; i++) {
|
||||
u8 val = 0;
|
||||
|
||||
for (j = 0; j < 8; j++) {
|
||||
unsigned int cnt = 0;
|
||||
|
||||
for (k = 0; k < nsrcbufs; k++) {
|
||||
const u8 *srcbuf = srcbufs[k];
|
||||
|
||||
if (srcbuf[i] & BIT(j))
|
||||
cnt++;
|
||||
}
|
||||
|
||||
if (cnt > nsrcbufs / 2)
|
||||
val |= BIT(j);
|
||||
}
|
||||
|
||||
((u8 *)dstbuf)[i] = val;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise.
|
||||
*/
|
||||
int nand_onfi_detect(struct nand_chip *chip)
|
||||
{
|
||||
struct mtd_info *mtd = nand_to_mtd(chip);
|
||||
struct nand_onfi_params *p;
|
||||
struct onfi_params *onfi;
|
||||
int onfi_version = 0;
|
||||
char id[4];
|
||||
int i, ret, val;
|
||||
|
||||
/* Try ONFI for unknown chip or LP */
|
||||
ret = nand_readid_op(chip, 0x20, id, sizeof(id));
|
||||
if (ret || strncmp(id, "ONFI", 4))
|
||||
return 0;
|
||||
|
||||
/* ONFI chip: allocate a buffer to hold its parameter page */
|
||||
p = kzalloc((sizeof(*p) * 3), GFP_KERNEL);
|
||||
if (!p)
|
||||
return -ENOMEM;
|
||||
|
||||
ret = nand_read_param_page_op(chip, 0, NULL, 0);
|
||||
if (ret) {
|
||||
ret = 0;
|
||||
goto free_onfi_param_page;
|
||||
}
|
||||
|
||||
for (i = 0; i < 3; i++) {
|
||||
ret = nand_read_data_op(chip, &p[i], sizeof(*p), true);
|
||||
if (ret) {
|
||||
ret = 0;
|
||||
goto free_onfi_param_page;
|
||||
}
|
||||
|
||||
if (onfi_crc16(ONFI_CRC_BASE, (u8 *)&p[i], 254) ==
|
||||
le16_to_cpu(p->crc)) {
|
||||
if (i)
|
||||
memcpy(p, &p[i], sizeof(*p));
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (i == 3) {
|
||||
const void *srcbufs[3] = {p, p + 1, p + 2};
|
||||
|
||||
pr_warn("Could not find a valid ONFI parameter page, trying bit-wise majority to recover it\n");
|
||||
nand_bit_wise_majority(srcbufs, ARRAY_SIZE(srcbufs), p,
|
||||
sizeof(*p));
|
||||
|
||||
if (onfi_crc16(ONFI_CRC_BASE, (u8 *)p, 254) !=
|
||||
le16_to_cpu(p->crc)) {
|
||||
pr_err("ONFI parameter recovery failed, aborting\n");
|
||||
goto free_onfi_param_page;
|
||||
}
|
||||
}
|
||||
|
||||
if (chip->manufacturer.desc && chip->manufacturer.desc->ops &&
|
||||
chip->manufacturer.desc->ops->fixup_onfi_param_page)
|
||||
chip->manufacturer.desc->ops->fixup_onfi_param_page(chip, p);
|
||||
|
||||
/* Check version */
|
||||
val = le16_to_cpu(p->revision);
|
||||
if (val & ONFI_VERSION_2_3)
|
||||
onfi_version = 23;
|
||||
else if (val & ONFI_VERSION_2_2)
|
||||
onfi_version = 22;
|
||||
else if (val & ONFI_VERSION_2_1)
|
||||
onfi_version = 21;
|
||||
else if (val & ONFI_VERSION_2_0)
|
||||
onfi_version = 20;
|
||||
else if (val & ONFI_VERSION_1_0)
|
||||
onfi_version = 10;
|
||||
|
||||
if (!onfi_version) {
|
||||
pr_info("unsupported ONFI version: %d\n", val);
|
||||
goto free_onfi_param_page;
|
||||
}
|
||||
|
||||
sanitize_string(p->manufacturer, sizeof(p->manufacturer));
|
||||
sanitize_string(p->model, sizeof(p->model));
|
||||
chip->parameters.model = kstrdup(p->model, GFP_KERNEL);
|
||||
if (!chip->parameters.model) {
|
||||
ret = -ENOMEM;
|
||||
goto free_onfi_param_page;
|
||||
}
|
||||
|
||||
mtd->writesize = le32_to_cpu(p->byte_per_page);
|
||||
|
||||
/*
|
||||
* pages_per_block and blocks_per_lun may not be a power-of-2 size
|
||||
* (don't ask me who thought of this...). MTD assumes that these
|
||||
* dimensions will be power-of-2, so just truncate the remaining area.
|
||||
*/
|
||||
mtd->erasesize = 1 << (fls(le32_to_cpu(p->pages_per_block)) - 1);
|
||||
mtd->erasesize *= mtd->writesize;
|
||||
|
||||
mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page);
|
||||
|
||||
/* See erasesize comment */
|
||||
chip->chipsize = 1 << (fls(le32_to_cpu(p->blocks_per_lun)) - 1);
|
||||
chip->chipsize *= (uint64_t)mtd->erasesize * p->lun_count;
|
||||
chip->bits_per_cell = p->bits_per_cell;
|
||||
|
||||
chip->max_bb_per_die = le16_to_cpu(p->bb_per_lun);
|
||||
chip->blocks_per_die = le32_to_cpu(p->blocks_per_lun);
|
||||
|
||||
if (le16_to_cpu(p->features) & ONFI_FEATURE_16_BIT_BUS)
|
||||
chip->options |= NAND_BUSWIDTH_16;
|
||||
|
||||
if (p->ecc_bits != 0xff) {
|
||||
chip->ecc_strength_ds = p->ecc_bits;
|
||||
chip->ecc_step_ds = 512;
|
||||
} else if (onfi_version >= 21 &&
|
||||
(le16_to_cpu(p->features) & ONFI_FEATURE_EXT_PARAM_PAGE)) {
|
||||
|
||||
/*
|
||||
* The nand_flash_detect_ext_param_page() uses the
|
||||
* Change Read Column command which maybe not supported
|
||||
* by the chip->legacy.cmdfunc. So try to update the
|
||||
* chip->legacy.cmdfunc now. We do not replace user supplied
|
||||
* command function.
|
||||
*/
|
||||
nand_legacy_adjust_cmdfunc(chip);
|
||||
|
||||
/* The Extended Parameter Page is supported since ONFI 2.1. */
|
||||
if (nand_flash_detect_ext_param_page(chip, p))
|
||||
pr_warn("Failed to detect ONFI extended param page\n");
|
||||
} else {
|
||||
pr_warn("Could not retrieve ONFI ECC requirements\n");
|
||||
}
|
||||
|
||||
/* Save some parameters from the parameter page for future use */
|
||||
if (le16_to_cpu(p->opt_cmd) & ONFI_OPT_CMD_SET_GET_FEATURES) {
|
||||
chip->parameters.supports_set_get_features = true;
|
||||
bitmap_set(chip->parameters.get_feature_list,
|
||||
ONFI_FEATURE_ADDR_TIMING_MODE, 1);
|
||||
bitmap_set(chip->parameters.set_feature_list,
|
||||
ONFI_FEATURE_ADDR_TIMING_MODE, 1);
|
||||
}
|
||||
|
||||
onfi = kzalloc(sizeof(*onfi), GFP_KERNEL);
|
||||
if (!onfi) {
|
||||
ret = -ENOMEM;
|
||||
goto free_model;
|
||||
}
|
||||
|
||||
onfi->version = onfi_version;
|
||||
onfi->tPROG = le16_to_cpu(p->t_prog);
|
||||
onfi->tBERS = le16_to_cpu(p->t_bers);
|
||||
onfi->tR = le16_to_cpu(p->t_r);
|
||||
onfi->tCCS = le16_to_cpu(p->t_ccs);
|
||||
onfi->async_timing_mode = le16_to_cpu(p->async_timing_mode);
|
||||
onfi->vendor_revision = le16_to_cpu(p->vendor_revision);
|
||||
memcpy(onfi->vendor, p->vendor, sizeof(p->vendor));
|
||||
chip->parameters.onfi = onfi;
|
||||
|
||||
/* Identification done, free the full ONFI parameter page and exit */
|
||||
kfree(p);
|
||||
|
||||
return 1;
|
||||
|
||||
free_model:
|
||||
kfree(chip->parameters.model);
|
||||
free_onfi_param_page:
|
||||
kfree(p);
|
||||
|
||||
return ret;
|
||||
}
|
178
include/linux/mtd/onfi.h
Normal file
178
include/linux/mtd/onfi.h
Normal file
|
@ -0,0 +1,178 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* Copyright © 2000-2010 David Woodhouse <dwmw2@infradead.org>
|
||||
* Steven J. Hill <sjhill@realitydiluted.com>
|
||||
* Thomas Gleixner <tglx@linutronix.de>
|
||||
*
|
||||
* Contains all ONFI related definitions
|
||||
*/
|
||||
|
||||
#ifndef __LINUX_MTD_ONFI_H
|
||||
#define __LINUX_MTD_ONFI_H
|
||||
|
||||
#include <linux/types.h>
|
||||
|
||||
/* ONFI version bits */
|
||||
#define ONFI_VERSION_1_0 BIT(1)
|
||||
#define ONFI_VERSION_2_0 BIT(2)
|
||||
#define ONFI_VERSION_2_1 BIT(3)
|
||||
#define ONFI_VERSION_2_2 BIT(4)
|
||||
#define ONFI_VERSION_2_3 BIT(5)
|
||||
#define ONFI_VERSION_3_0 BIT(6)
|
||||
#define ONFI_VERSION_3_1 BIT(7)
|
||||
#define ONFI_VERSION_3_2 BIT(8)
|
||||
#define ONFI_VERSION_4_0 BIT(9)
|
||||
|
||||
/* ONFI features */
|
||||
#define ONFI_FEATURE_16_BIT_BUS (1 << 0)
|
||||
#define ONFI_FEATURE_EXT_PARAM_PAGE (1 << 7)
|
||||
|
||||
/* ONFI timing mode, used in both asynchronous and synchronous mode */
|
||||
#define ONFI_TIMING_MODE_0 (1 << 0)
|
||||
#define ONFI_TIMING_MODE_1 (1 << 1)
|
||||
#define ONFI_TIMING_MODE_2 (1 << 2)
|
||||
#define ONFI_TIMING_MODE_3 (1 << 3)
|
||||
#define ONFI_TIMING_MODE_4 (1 << 4)
|
||||
#define ONFI_TIMING_MODE_5 (1 << 5)
|
||||
#define ONFI_TIMING_MODE_UNKNOWN (1 << 6)
|
||||
|
||||
/* ONFI feature number/address */
|
||||
#define ONFI_FEATURE_NUMBER 256
|
||||
#define ONFI_FEATURE_ADDR_TIMING_MODE 0x1
|
||||
|
||||
/* Vendor-specific feature address (Micron) */
|
||||
#define ONFI_FEATURE_ADDR_READ_RETRY 0x89
|
||||
#define ONFI_FEATURE_ON_DIE_ECC 0x90
|
||||
#define ONFI_FEATURE_ON_DIE_ECC_EN BIT(3)
|
||||
|
||||
/* ONFI subfeature parameters length */
|
||||
#define ONFI_SUBFEATURE_PARAM_LEN 4
|
||||
|
||||
/* ONFI optional commands SET/GET FEATURES supported? */
|
||||
#define ONFI_OPT_CMD_SET_GET_FEATURES (1 << 2)
|
||||
|
||||
struct nand_onfi_params {
|
||||
/* rev info and features block */
|
||||
/* 'O' 'N' 'F' 'I' */
|
||||
u8 sig[4];
|
||||
__le16 revision;
|
||||
__le16 features;
|
||||
__le16 opt_cmd;
|
||||
u8 reserved0[2];
|
||||
__le16 ext_param_page_length; /* since ONFI 2.1 */
|
||||
u8 num_of_param_pages; /* since ONFI 2.1 */
|
||||
u8 reserved1[17];
|
||||
|
||||
/* manufacturer information block */
|
||||
char manufacturer[12];
|
||||
char model[20];
|
||||
u8 jedec_id;
|
||||
__le16 date_code;
|
||||
u8 reserved2[13];
|
||||
|
||||
/* memory organization block */
|
||||
__le32 byte_per_page;
|
||||
__le16 spare_bytes_per_page;
|
||||
__le32 data_bytes_per_ppage;
|
||||
__le16 spare_bytes_per_ppage;
|
||||
__le32 pages_per_block;
|
||||
__le32 blocks_per_lun;
|
||||
u8 lun_count;
|
||||
u8 addr_cycles;
|
||||
u8 bits_per_cell;
|
||||
__le16 bb_per_lun;
|
||||
__le16 block_endurance;
|
||||
u8 guaranteed_good_blocks;
|
||||
__le16 guaranteed_block_endurance;
|
||||
u8 programs_per_page;
|
||||
u8 ppage_attr;
|
||||
u8 ecc_bits;
|
||||
u8 interleaved_bits;
|
||||
u8 interleaved_ops;
|
||||
u8 reserved3[13];
|
||||
|
||||
/* electrical parameter block */
|
||||
u8 io_pin_capacitance_max;
|
||||
__le16 async_timing_mode;
|
||||
__le16 program_cache_timing_mode;
|
||||
__le16 t_prog;
|
||||
__le16 t_bers;
|
||||
__le16 t_r;
|
||||
__le16 t_ccs;
|
||||
__le16 src_sync_timing_mode;
|
||||
u8 src_ssync_features;
|
||||
__le16 clk_pin_capacitance_typ;
|
||||
__le16 io_pin_capacitance_typ;
|
||||
__le16 input_pin_capacitance_typ;
|
||||
u8 input_pin_capacitance_max;
|
||||
u8 driver_strength_support;
|
||||
__le16 t_int_r;
|
||||
__le16 t_adl;
|
||||
u8 reserved4[8];
|
||||
|
||||
/* vendor */
|
||||
__le16 vendor_revision;
|
||||
u8 vendor[88];
|
||||
|
||||
__le16 crc;
|
||||
} __packed;
|
||||
|
||||
#define ONFI_CRC_BASE 0x4F4E
|
||||
|
||||
/* Extended ECC information Block Definition (since ONFI 2.1) */
|
||||
struct onfi_ext_ecc_info {
|
||||
u8 ecc_bits;
|
||||
u8 codeword_size;
|
||||
__le16 bb_per_lun;
|
||||
__le16 block_endurance;
|
||||
u8 reserved[2];
|
||||
} __packed;
|
||||
|
||||
#define ONFI_SECTION_TYPE_0 0 /* Unused section. */
|
||||
#define ONFI_SECTION_TYPE_1 1 /* for additional sections. */
|
||||
#define ONFI_SECTION_TYPE_2 2 /* for ECC information. */
|
||||
struct onfi_ext_section {
|
||||
u8 type;
|
||||
u8 length;
|
||||
} __packed;
|
||||
|
||||
#define ONFI_EXT_SECTION_MAX 8
|
||||
|
||||
/* Extended Parameter Page Definition (since ONFI 2.1) */
|
||||
struct onfi_ext_param_page {
|
||||
__le16 crc;
|
||||
u8 sig[4]; /* 'E' 'P' 'P' 'S' */
|
||||
u8 reserved0[10];
|
||||
struct onfi_ext_section sections[ONFI_EXT_SECTION_MAX];
|
||||
|
||||
/*
|
||||
* The actual size of the Extended Parameter Page is in
|
||||
* @ext_param_page_length of nand_onfi_params{}.
|
||||
* The following are the variable length sections.
|
||||
* So we do not add any fields below. Please see the ONFI spec.
|
||||
*/
|
||||
} __packed;
|
||||
|
||||
/**
|
||||
* struct onfi_params - ONFI specific parameters that will be reused
|
||||
* @version: ONFI version (BCD encoded), 0 if ONFI is not supported
|
||||
* @tPROG: Page program time
|
||||
* @tBERS: Block erase time
|
||||
* @tR: Page read time
|
||||
* @tCCS: Change column setup time
|
||||
* @async_timing_mode: Supported asynchronous timing mode
|
||||
* @vendor_revision: Vendor specific revision number
|
||||
* @vendor: Vendor specific data
|
||||
*/
|
||||
struct onfi_params {
|
||||
int version;
|
||||
u16 tPROG;
|
||||
u16 tBERS;
|
||||
u16 tR;
|
||||
u16 tCCS;
|
||||
u16 async_timing_mode;
|
||||
u16 vendor_revision;
|
||||
u8 vendor[88];
|
||||
};
|
||||
|
||||
#endif /* __LINUX_MTD_ONFI_H */
|
|
@ -21,6 +21,7 @@
|
|||
#include <linux/mtd/mtd.h>
|
||||
#include <linux/mtd/flashchip.h>
|
||||
#include <linux/mtd/bbm.h>
|
||||
#include <linux/mtd/onfi.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
|
@ -204,147 +205,6 @@ enum nand_ecc_algo {
|
|||
#define NAND_CI_CELLTYPE_MSK 0x0C
|
||||
#define NAND_CI_CELLTYPE_SHIFT 2
|
||||
|
||||
/* ONFI version bits */
|
||||
#define ONFI_VERSION_1_0 BIT(1)
|
||||
#define ONFI_VERSION_2_0 BIT(2)
|
||||
#define ONFI_VERSION_2_1 BIT(3)
|
||||
#define ONFI_VERSION_2_2 BIT(4)
|
||||
#define ONFI_VERSION_2_3 BIT(5)
|
||||
#define ONFI_VERSION_3_0 BIT(6)
|
||||
#define ONFI_VERSION_3_1 BIT(7)
|
||||
#define ONFI_VERSION_3_2 BIT(8)
|
||||
#define ONFI_VERSION_4_0 BIT(9)
|
||||
|
||||
/* ONFI features */
|
||||
#define ONFI_FEATURE_16_BIT_BUS (1 << 0)
|
||||
#define ONFI_FEATURE_EXT_PARAM_PAGE (1 << 7)
|
||||
|
||||
/* ONFI timing mode, used in both asynchronous and synchronous mode */
|
||||
#define ONFI_TIMING_MODE_0 (1 << 0)
|
||||
#define ONFI_TIMING_MODE_1 (1 << 1)
|
||||
#define ONFI_TIMING_MODE_2 (1 << 2)
|
||||
#define ONFI_TIMING_MODE_3 (1 << 3)
|
||||
#define ONFI_TIMING_MODE_4 (1 << 4)
|
||||
#define ONFI_TIMING_MODE_5 (1 << 5)
|
||||
#define ONFI_TIMING_MODE_UNKNOWN (1 << 6)
|
||||
|
||||
/* ONFI feature number/address */
|
||||
#define ONFI_FEATURE_NUMBER 256
|
||||
#define ONFI_FEATURE_ADDR_TIMING_MODE 0x1
|
||||
|
||||
/* Vendor-specific feature address (Micron) */
|
||||
#define ONFI_FEATURE_ADDR_READ_RETRY 0x89
|
||||
#define ONFI_FEATURE_ON_DIE_ECC 0x90
|
||||
#define ONFI_FEATURE_ON_DIE_ECC_EN BIT(3)
|
||||
|
||||
/* ONFI subfeature parameters length */
|
||||
#define ONFI_SUBFEATURE_PARAM_LEN 4
|
||||
|
||||
/* ONFI optional commands SET/GET FEATURES supported? */
|
||||
#define ONFI_OPT_CMD_SET_GET_FEATURES (1 << 2)
|
||||
|
||||
struct nand_onfi_params {
|
||||
/* rev info and features block */
|
||||
/* 'O' 'N' 'F' 'I' */
|
||||
u8 sig[4];
|
||||
__le16 revision;
|
||||
__le16 features;
|
||||
__le16 opt_cmd;
|
||||
u8 reserved0[2];
|
||||
__le16 ext_param_page_length; /* since ONFI 2.1 */
|
||||
u8 num_of_param_pages; /* since ONFI 2.1 */
|
||||
u8 reserved1[17];
|
||||
|
||||
/* manufacturer information block */
|
||||
char manufacturer[12];
|
||||
char model[20];
|
||||
u8 jedec_id;
|
||||
__le16 date_code;
|
||||
u8 reserved2[13];
|
||||
|
||||
/* memory organization block */
|
||||
__le32 byte_per_page;
|
||||
__le16 spare_bytes_per_page;
|
||||
__le32 data_bytes_per_ppage;
|
||||
__le16 spare_bytes_per_ppage;
|
||||
__le32 pages_per_block;
|
||||
__le32 blocks_per_lun;
|
||||
u8 lun_count;
|
||||
u8 addr_cycles;
|
||||
u8 bits_per_cell;
|
||||
__le16 bb_per_lun;
|
||||
__le16 block_endurance;
|
||||
u8 guaranteed_good_blocks;
|
||||
__le16 guaranteed_block_endurance;
|
||||
u8 programs_per_page;
|
||||
u8 ppage_attr;
|
||||
u8 ecc_bits;
|
||||
u8 interleaved_bits;
|
||||
u8 interleaved_ops;
|
||||
u8 reserved3[13];
|
||||
|
||||
/* electrical parameter block */
|
||||
u8 io_pin_capacitance_max;
|
||||
__le16 async_timing_mode;
|
||||
__le16 program_cache_timing_mode;
|
||||
__le16 t_prog;
|
||||
__le16 t_bers;
|
||||
__le16 t_r;
|
||||
__le16 t_ccs;
|
||||
__le16 src_sync_timing_mode;
|
||||
u8 src_ssync_features;
|
||||
__le16 clk_pin_capacitance_typ;
|
||||
__le16 io_pin_capacitance_typ;
|
||||
__le16 input_pin_capacitance_typ;
|
||||
u8 input_pin_capacitance_max;
|
||||
u8 driver_strength_support;
|
||||
__le16 t_int_r;
|
||||
__le16 t_adl;
|
||||
u8 reserved4[8];
|
||||
|
||||
/* vendor */
|
||||
__le16 vendor_revision;
|
||||
u8 vendor[88];
|
||||
|
||||
__le16 crc;
|
||||
} __packed;
|
||||
|
||||
#define ONFI_CRC_BASE 0x4F4E
|
||||
|
||||
/* Extended ECC information Block Definition (since ONFI 2.1) */
|
||||
struct onfi_ext_ecc_info {
|
||||
u8 ecc_bits;
|
||||
u8 codeword_size;
|
||||
__le16 bb_per_lun;
|
||||
__le16 block_endurance;
|
||||
u8 reserved[2];
|
||||
} __packed;
|
||||
|
||||
#define ONFI_SECTION_TYPE_0 0 /* Unused section. */
|
||||
#define ONFI_SECTION_TYPE_1 1 /* for additional sections. */
|
||||
#define ONFI_SECTION_TYPE_2 2 /* for ECC information. */
|
||||
struct onfi_ext_section {
|
||||
u8 type;
|
||||
u8 length;
|
||||
} __packed;
|
||||
|
||||
#define ONFI_EXT_SECTION_MAX 8
|
||||
|
||||
/* Extended Parameter Page Definition (since ONFI 2.1) */
|
||||
struct onfi_ext_param_page {
|
||||
__le16 crc;
|
||||
u8 sig[4]; /* 'E' 'P' 'P' 'S' */
|
||||
u8 reserved0[10];
|
||||
struct onfi_ext_section sections[ONFI_EXT_SECTION_MAX];
|
||||
|
||||
/*
|
||||
* The actual size of the Extended Parameter Page is in
|
||||
* @ext_param_page_length of nand_onfi_params{}.
|
||||
* The following are the variable length sections.
|
||||
* So we do not add any fields below. Please see the ONFI spec.
|
||||
*/
|
||||
} __packed;
|
||||
|
||||
struct jedec_ecc_info {
|
||||
u8 ecc_bits;
|
||||
u8 codeword_size;
|
||||
|
@ -423,28 +283,6 @@ struct nand_jedec_params {
|
|||
__le16 crc;
|
||||
} __packed;
|
||||
|
||||
/**
|
||||
* struct onfi_params - ONFI specific parameters that will be reused
|
||||
* @version: ONFI version (BCD encoded), 0 if ONFI is not supported
|
||||
* @tPROG: Page program time
|
||||
* @tBERS: Block erase time
|
||||
* @tR: Page read time
|
||||
* @tCCS: Change column setup time
|
||||
* @async_timing_mode: Supported asynchronous timing mode
|
||||
* @vendor_revision: Vendor specific revision number
|
||||
* @vendor: Vendor specific data
|
||||
*/
|
||||
struct onfi_params {
|
||||
int version;
|
||||
u16 tPROG;
|
||||
u16 tBERS;
|
||||
u16 tR;
|
||||
u16 tCCS;
|
||||
u16 async_timing_mode;
|
||||
u16 vendor_revision;
|
||||
u8 vendor[88];
|
||||
};
|
||||
|
||||
/**
|
||||
* struct nand_parameters - NAND generic parameters from the parameter page
|
||||
* @model: Model name
|
||||
|
|
Loading…
Reference in a new issue