From 213042bba186b995bc2f25c8c2d06a9652177fa3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= Date: Tue, 27 Sep 2022 17:09:49 +0200 Subject: Import Turris OS kernel patches --- ...d-spinand-add-support-for-ESMT-F50x1G41LB.patch | 155 +++++++++++++++++++++ 1 file changed, 155 insertions(+) create mode 100644 nixos/modules/kernel-patches/0052-mtd-spinand-add-support-for-ESMT-F50x1G41LB.patch (limited to 'nixos/modules/kernel-patches/0052-mtd-spinand-add-support-for-ESMT-F50x1G41LB.patch') diff --git a/nixos/modules/kernel-patches/0052-mtd-spinand-add-support-for-ESMT-F50x1G41LB.patch b/nixos/modules/kernel-patches/0052-mtd-spinand-add-support-for-ESMT-F50x1G41LB.patch new file mode 100644 index 0000000..aa8d4ff --- /dev/null +++ b/nixos/modules/kernel-patches/0052-mtd-spinand-add-support-for-ESMT-F50x1G41LB.patch @@ -0,0 +1,155 @@ +From 212a7751ee6e76db714bb1dc50c80aa21c0ce871 Mon Sep 17 00:00:00 2001 +From: Chuanhong Guo +Date: Wed, 13 Apr 2022 11:58:17 +0800 +Subject: [PATCH 52/96] mtd: spinand: add support for ESMT F50x1G41LB + +This patch adds support for ESMT F50L1G41LB and F50D1G41LB. +It seems that ESMT likes to use random JEDEC ID from other vendors. +Their 1G chips uses 0xc8 from GigaDevice and 2G/4G chips uses 0x2c from +Micron. For this reason, the ESMT entry is named esmt_c8 with explicit +JEDEC ID in variable name. + +Datasheets: +https://www.esmt.com.tw/upload/pdf/ESMT/datasheets/F50L1G41LB(2M).pdf +https://www.esmt.com.tw/upload/pdf/ESMT/datasheets/F50D1G41LB(2M).pdf + +Signed-off-by: Chuanhong Guo +--- + drivers/mtd/nand/spi/Makefile | 2 +- + drivers/mtd/nand/spi/core.c | 1 + + drivers/mtd/nand/spi/esmt.c | 89 +++++++++++++++++++++++++++++++++++ + include/linux/mtd/spinand.h | 1 + + 4 files changed, 92 insertions(+), 1 deletion(-) + create mode 100644 drivers/mtd/nand/spi/esmt.c + +diff --git a/drivers/mtd/nand/spi/Makefile b/drivers/mtd/nand/spi/Makefile +index 80dabe6ff0f3..9c64d9fcb189 100644 +--- a/drivers/mtd/nand/spi/Makefile ++++ b/drivers/mtd/nand/spi/Makefile +@@ -1,3 +1,3 @@ + # SPDX-License-Identifier: GPL-2.0 +-spinand-objs := core.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o xtx.o ++spinand-objs := core.o esmt.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o xtx.o + obj-$(CONFIG_MTD_SPI_NAND) += spinand.o +diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c +index d5b685d1605e..f9fd111f3364 100644 +--- a/drivers/mtd/nand/spi/core.c ++++ b/drivers/mtd/nand/spi/core.c +@@ -927,6 +927,7 @@ static const struct nand_ops spinand_ops = { + }; + + static const struct spinand_manufacturer *spinand_manufacturers[] = { ++ &esmt_c8_spinand_manufacturer, + &gigadevice_spinand_manufacturer, + ¯onix_spinand_manufacturer, + µn_spinand_manufacturer, +diff --git a/drivers/mtd/nand/spi/esmt.c b/drivers/mtd/nand/spi/esmt.c +new file mode 100644 +index 000000000000..dad0ba60bb79 +--- /dev/null ++++ b/drivers/mtd/nand/spi/esmt.c +@@ -0,0 +1,89 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Author: ++ * Chuanhong Guo ++ */ ++ ++#include ++#include ++#include ++ ++/* ESMT uses GigaDevice 0xc8 JECDEC ID on some SPI NANDs */ ++#define SPINAND_MFR_ESMT_C8 0xc8 ++ ++static SPINAND_OP_VARIANTS(read_cache_variants, ++ SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0), ++ SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), ++ SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), ++ SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), ++ SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), ++ SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); ++ ++static SPINAND_OP_VARIANTS(write_cache_variants, ++ SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), ++ SPINAND_PROG_LOAD(true, 0, NULL, 0)); ++ ++static SPINAND_OP_VARIANTS(update_cache_variants, ++ SPINAND_PROG_LOAD_X4(false, 0, NULL, 0), ++ SPINAND_PROG_LOAD(false, 0, NULL, 0)); ++ ++static int f50l1g41lb_ooblayout_ecc(struct mtd_info *mtd, int section, ++ struct mtd_oob_region *region) ++{ ++ if (section > 3) ++ return -ERANGE; ++ ++ region->offset = 16 * section + 8; ++ region->length = 8; ++ ++ return 0; ++} ++ ++static int f50l1g41lb_ooblayout_free(struct mtd_info *mtd, int section, ++ struct mtd_oob_region *region) ++{ ++ if (section > 3) ++ return -ERANGE; ++ ++ region->offset = 16 * section + 2; ++ region->length = 6; ++ ++ return 0; ++} ++ ++static const struct mtd_ooblayout_ops f50l1g41lb_ooblayout = { ++ .ecc = f50l1g41lb_ooblayout_ecc, ++ .free = f50l1g41lb_ooblayout_free, ++}; ++ ++static const struct spinand_info esmt_c8_spinand_table[] = { ++ SPINAND_INFO("F50L1G41LB", ++ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x01), ++ NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1), ++ NAND_ECCREQ(1, 512), ++ SPINAND_INFO_OP_VARIANTS(&read_cache_variants, ++ &write_cache_variants, ++ &update_cache_variants), ++ 0, ++ SPINAND_ECCINFO(&f50l1g41lb_ooblayout, NULL)), ++ SPINAND_INFO("F50D1G41LB", ++ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x11), ++ NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1), ++ NAND_ECCREQ(1, 512), ++ SPINAND_INFO_OP_VARIANTS(&read_cache_variants, ++ &write_cache_variants, ++ &update_cache_variants), ++ 0, ++ SPINAND_ECCINFO(&f50l1g41lb_ooblayout, NULL)), ++}; ++ ++static const struct spinand_manufacturer_ops esmt_spinand_manuf_ops = { ++}; ++ ++const struct spinand_manufacturer esmt_c8_spinand_manufacturer = { ++ .id = SPINAND_MFR_ESMT_C8, ++ .name = "ESMT", ++ .chips = esmt_c8_spinand_table, ++ .nchips = ARRAY_SIZE(esmt_c8_spinand_table), ++ .ops = &esmt_spinand_manuf_ops, ++}; +diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h +index 5584d3bb6556..3b42e7392226 100644 +--- a/include/linux/mtd/spinand.h ++++ b/include/linux/mtd/spinand.h +@@ -260,6 +260,7 @@ struct spinand_manufacturer { + }; + + /* SPI NAND manufacturers */ ++extern const struct spinand_manufacturer esmt_c8_spinand_manufacturer; + extern const struct spinand_manufacturer gigadevice_spinand_manufacturer; + extern const struct spinand_manufacturer macronix_spinand_manufacturer; + extern const struct spinand_manufacturer micron_spinand_manufacturer; +-- +2.37.2 + -- cgit v1.2.3