diff options
Diffstat (limited to 'target/linux/generic/pending-5.4/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch')
| -rw-r--r-- | target/linux/generic/pending-5.4/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/target/linux/generic/pending-5.4/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch b/target/linux/generic/pending-5.4/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch deleted file mode 100644 index 56cfc93c46..0000000000 --- a/target/linux/generic/pending-5.4/483-mtd-spinand-add-support-for-xtx-xt26g0xa.patch +++ /dev/null @@ -1,195 +0,0 @@ -From 8ffe91b6b429277bd7bd79267ba836edf951dce2 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 | 139 ++++++++++++++++++++++++++++++++++ - include/linux/mtd/spinand.h | 1 + - 4 files changed, 142 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 -@@ -758,6 +758,7 @@ static const struct spinand_manufacturer - ¶gon_spinand_manufacturer, - &toshiba_spinand_manufacturer, - &winbond_spinand_manufacturer, -+ &xtx_spinand_manufacturer, - }; - - static int spinand_manufacturer_detect(struct spinand_device *spinand) ---- /dev/null -+++ b/drivers/mtd/nand/spi/xtx.c -@@ -0,0 +1,139 @@ -+// 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 = 8; -+ region->length = 40; -+ -+ 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 = 7; -+ -+ 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", 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", 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", 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 int xtx_spinand_detect(struct spinand_device *spinand) -+{ -+ u8 *id = spinand->id.data; -+ int ret; -+ -+ /* -+ * XTX SPI NAND read ID needs a dummy byte, so the first byte in -+ * raw_id is garbage. -+ */ -+ if (id[1] != SPINAND_MFR_XTX) -+ return 0; -+ -+ ret = spinand_match_and_init(spinand, xtx_spinand_table, -+ ARRAY_SIZE(xtx_spinand_table), -+ id[2]); -+ if (ret) -+ return ret; -+ -+ return 1; -+} -+ -+static const struct spinand_manufacturer_ops xtx_spinand_manuf_ops = { -+ .detect = xtx_spinand_detect, -+}; -+ -+const struct spinand_manufacturer xtx_spinand_manufacturer = { -+ .id = SPINAND_MFR_XTX, -+ .name = "XTX", -+ .ops = &xtx_spinand_manuf_ops, -+}; ---- a/include/linux/mtd/spinand.h -+++ b/include/linux/mtd/spinand.h -@@ -230,6 +230,7 @@ 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 |