diff options
Diffstat (limited to 'pkgs/patches-linux-5.15/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch')
| -rw-r--r-- | pkgs/patches-linux-5.15/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/pkgs/patches-linux-5.15/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch b/pkgs/patches-linux-5.15/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch new file mode 100644 index 0000000..a73c9fa --- /dev/null +++ b/pkgs/patches-linux-5.15/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch @@ -0,0 +1,178 @@ +From a07e31adf2753cad2fd9790db5bfc047c81e8152 Mon Sep 17 00:00:00 2001 +From: Felix Matouschek <felix@matouschek.org> +Date: Fri, 2 Jul 2021 20:31:23 +0200 +Subject: [PATCH] mtd: spinand: Add support for XTX XT26G0xA + +Add support for XTX Technology XT26G01AXXXXX, XTX26G02AXXXXX and +XTX26G04AXXXXX SPI NAND. + +These are 3V, 1G/2G/4Gbit serial SLC NAND flash devices with on-die ECC +(8bit strength per 512bytes). + +Tested on Teltonika RUTX10 flashed with OpenWrt. + +Datasheets available at +http://www.xtxtech.com/download/?AId=225 +https://datasheet.lcsc.com/szlcsc/2005251034_XTX-XT26G01AWSEGA_C558841.pdf + +Signed-off-by: Felix Matouschek <felix@matouschek.org> +--- + drivers/mtd/nand/spi/Makefile | 2 +- + drivers/mtd/nand/spi/core.c | 1 + + drivers/mtd/nand/spi/xtx.c | 122 ++++++++++++++++++++++++++++++++++ + include/linux/mtd/spinand.h | 1 + + 4 files changed, 125 insertions(+), 1 deletion(-) + create mode 100644 drivers/mtd/nand/spi/xtx.c + +--- 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 ++spinand-objs := core.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o xtx.o + obj-$(CONFIG_MTD_SPI_NAND) += spinand.o +--- a/drivers/mtd/nand/spi/core.c ++++ b/drivers/mtd/nand/spi/core.c +@@ -902,6 +902,7 @@ static const struct spinand_manufacturer + ¶gon_spinand_manufacturer, + &toshiba_spinand_manufacturer, + &winbond_spinand_manufacturer, ++ &xtx_spinand_manufacturer, + }; + + static int spinand_manufacturer_match(struct spinand_device *spinand, +--- /dev/null ++++ b/drivers/mtd/nand/spi/xtx.c +@@ -0,0 +1,122 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Author: ++ * Felix Matouschek <felix@matouschek.org> ++ */ ++ ++#include <linux/device.h> ++#include <linux/kernel.h> ++#include <linux/mtd/spinand.h> ++ ++#define SPINAND_MFR_XTX 0x0B ++ ++#define XT26G0XA_STATUS_ECC_MASK GENMASK(5, 2) ++#define XT26G0XA_STATUS_ECC_NO_DETECTED (0 << 2) ++#define XT26G0XA_STATUS_ECC_8_CORRECTED (3 << 4) ++#define XT26G0XA_STATUS_ECC_UNCOR_ERROR (2 << 4) ++ ++static SPINAND_OP_VARIANTS(read_cache_variants, ++ SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, 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 xt26g0xa_ooblayout_ecc(struct mtd_info *mtd, int section, ++ struct mtd_oob_region *region) ++{ ++ if (section) ++ return -ERANGE; ++ ++ region->offset = 48; ++ region->length = 16; ++ ++ return 0; ++} ++ ++static int xt26g0xa_ooblayout_free(struct mtd_info *mtd, int section, ++ struct mtd_oob_region *region) ++{ ++ if (section) ++ return -ERANGE; ++ ++ region->offset = 1; ++ region->length = 47; ++ ++ return 0; ++} ++ ++static const struct mtd_ooblayout_ops xt26g0xa_ooblayout = { ++ .ecc = xt26g0xa_ooblayout_ecc, ++ .free = xt26g0xa_ooblayout_free, ++}; ++ ++static int xt26g0xa_ecc_get_status(struct spinand_device *spinand, ++ u8 status) ++{ ++ switch (status & XT26G0XA_STATUS_ECC_MASK) { ++ case XT26G0XA_STATUS_ECC_NO_DETECTED: ++ return 0; ++ case XT26G0XA_STATUS_ECC_8_CORRECTED: ++ return 8; ++ case XT26G0XA_STATUS_ECC_UNCOR_ERROR: ++ return -EBADMSG; ++ default: /* (1 << 2) through (7 << 2) are 1-7 corrected errors */ ++ return (status & XT26G0XA_STATUS_ECC_MASK) >> 2; ++ } ++ ++ return -EINVAL; ++} ++ ++static const struct spinand_info xtx_spinand_table[] = { ++ SPINAND_INFO("XT26G01A", ++ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xE1), ++ NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1), ++ NAND_ECCREQ(8, 512), ++ SPINAND_INFO_OP_VARIANTS(&read_cache_variants, ++ &write_cache_variants, ++ &update_cache_variants), ++ SPINAND_HAS_QE_BIT, ++ SPINAND_ECCINFO(&xt26g0xa_ooblayout, ++ xt26g0xa_ecc_get_status)), ++ SPINAND_INFO("XT26G02A", ++ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xE2), ++ NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1), ++ NAND_ECCREQ(8, 512), ++ SPINAND_INFO_OP_VARIANTS(&read_cache_variants, ++ &write_cache_variants, ++ &update_cache_variants), ++ SPINAND_HAS_QE_BIT, ++ SPINAND_ECCINFO(&xt26g0xa_ooblayout, ++ xt26g0xa_ecc_get_status)), ++ SPINAND_INFO("XT26G04A", ++ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xE3), ++ NAND_MEMORG(1, 2048, 64, 128, 2048, 40, 1, 1, 1), ++ NAND_ECCREQ(8, 512), ++ SPINAND_INFO_OP_VARIANTS(&read_cache_variants, ++ &write_cache_variants, ++ &update_cache_variants), ++ SPINAND_HAS_QE_BIT, ++ SPINAND_ECCINFO(&xt26g0xa_ooblayout, ++ xt26g0xa_ecc_get_status)), ++}; ++ ++static const struct spinand_manufacturer_ops xtx_spinand_manuf_ops = { ++}; ++ ++const struct spinand_manufacturer xtx_spinand_manufacturer = { ++ .id = SPINAND_MFR_XTX, ++ .name = "XTX", ++ .chips = xtx_spinand_table, ++ .nchips = ARRAY_SIZE(xtx_spinand_table), ++ .ops = &xtx_spinand_manuf_ops, ++}; +--- a/include/linux/mtd/spinand.h ++++ b/include/linux/mtd/spinand.h +@@ -266,6 +266,7 @@ extern const struct spinand_manufacturer + extern const struct spinand_manufacturer paragon_spinand_manufacturer; + extern const struct spinand_manufacturer toshiba_spinand_manufacturer; + extern const struct spinand_manufacturer winbond_spinand_manufacturer; ++extern const struct spinand_manufacturer xtx_spinand_manufacturer; + + /** + * struct spinand_op_variants - SPI NAND operation variants |