From eec417fd317a95a79257c20b3a1d66d4027549df Mon Sep 17 00:00:00 2001 From: Chris Morgan Date: Thu, 30 Sep 2021 11:24:02 -0500 Subject: mtd: rawnand: hynix: Add support for H27UCG8T2ETR-BC MLC NAND Add support for the H27UCG8T2ETR-BC MLC NAND. The NAND is used widely in the NTC CHIP, is an MLC type NAND, and is 8GB in size. Neither JEDEC nor ONFI detection identifies it correctly, so the ID is added to the nand_ids.c file. Additionally, per the datasheet this NAND appears to use the same paired pages scheme as the Toshiba TC58TEG5DCLTA00 (dist3), so add support for that to enable use in SLC emulation mode. Tested on a NTC CHIP the device is able to write to a ubifs formatted partition, and then have U-Boot (with proposed patches) boot from a kernel located on that ubifs formatted partition. Signed-off-by: Chris Morgan Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20210930162402.344-1-macroalpha82@gmail.com --- drivers/mtd/nand/raw/nand_hynix.c | 14 ++++++++++++++ drivers/mtd/nand/raw/nand_ids.c | 4 ++++ 2 files changed, 18 insertions(+) diff --git a/drivers/mtd/nand/raw/nand_hynix.c b/drivers/mtd/nand/raw/nand_hynix.c index a9f50c9af109..0d4d4bbfdece 100644 --- a/drivers/mtd/nand/raw/nand_hynix.c +++ b/drivers/mtd/nand/raw/nand_hynix.c @@ -686,6 +686,16 @@ h27ucg8t2atrbc_choose_interface_config(struct nand_chip *chip, return nand_choose_best_sdr_timings(chip, iface, NULL); } +static int h27ucg8t2etrbc_init(struct nand_chip *chip) +{ + struct mtd_info *mtd = nand_to_mtd(chip); + + chip->options |= NAND_NEED_SCRAMBLING; + mtd_set_pairing_scheme(mtd, &dist3_pairing_scheme); + + return 0; +} + static int hynix_nand_init(struct nand_chip *chip) { struct hynix_nand *hynix; @@ -707,6 +717,10 @@ static int hynix_nand_init(struct nand_chip *chip) chip->ops.choose_interface_config = h27ucg8t2atrbc_choose_interface_config; + if (!strncmp("H27UCG8T2ETR-BC", chip->parameters.model, + sizeof("H27UCG8T2ETR-BC") - 1)) + h27ucg8t2etrbc_init(chip); + ret = hynix_nand_rr_init(chip); if (ret) hynix_nand_cleanup(chip); diff --git a/drivers/mtd/nand/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c index b9945791a9d7..6e41902be35f 100644 --- a/drivers/mtd/nand/raw/nand_ids.c +++ b/drivers/mtd/nand/raw/nand_ids.c @@ -51,6 +51,10 @@ struct nand_flash_dev nand_flash_ids[] = { { .id = {0xad, 0xde, 0x94, 0xda, 0x74, 0xc4} }, SZ_8K, SZ_8K, SZ_2M, NAND_NEED_SCRAMBLING, 6, 640, NAND_ECC_INFO(40, SZ_1K) }, + {"H27UCG8T2ETR-BC 64G 3.3V 8-bit", + { .id = {0xad, 0xde, 0x14, 0xa7, 0x42, 0x4a} }, + SZ_16K, SZ_8K, SZ_4M, NAND_NEED_SCRAMBLING, 6, 1664, + NAND_ECC_INFO(40, SZ_1K) }, {"TH58NVG2S3HBAI4 4G 3.3V 8-bit", { .id = {0x98, 0xdc, 0x91, 0x15, 0x76} }, SZ_2K, SZ_512, SZ_128K, 0, 5, 128, NAND_ECC_INFO(8, SZ_512) }, -- cgit