diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/463-v5.3-mtd-spinand-Add-initial-support-for-Paragon-PN26G0xA.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/463-v5.3-mtd-spinand-Add-initial-support-for-Paragon-PN26G0xA.patch | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/target/linux/generic/backport-5.4/463-v5.3-mtd-spinand-Add-initial-support-for-Paragon-PN26G0xA.patch b/target/linux/generic/backport-5.4/463-v5.3-mtd-spinand-Add-initial-support-for-Paragon-PN26G0xA.patch deleted file mode 100644 index 17b8e779bc..0000000000 --- a/target/linux/generic/backport-5.4/463-v5.3-mtd-spinand-Add-initial-support-for-Paragon-PN26G0xA.patch +++ /dev/null @@ -1,203 +0,0 @@ -From 3552691616c940a7c4125c2678ba816653cd725e Mon Sep 17 00:00:00 2001 -From: Jeff Kletsky <git-commits@allycomm.com> -Date: Tue, 18 Jun 2019 10:08:05 -0700 -Subject: [PATCH] mtd: spinand: Add initial support for Paragon PN26G0xA - -Add initial support for Paragon Technology -PN26G01Axxxxx and PN26G02Axxxxx SPI NAND - -Datasheets available at -http://www.xtxtech.com/upfile/2016082517274590.pdf -http://www.xtxtech.com/upfile/2016082517282329.pdf - -Signed-off-by: Jeff Kletsky <git-commits@allycomm.com> -Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de> -Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> - -ADOPTED FROM UPSTREAM due to upstream commit 377e517b5fa5 in Linux 5.2 - which added another parameter to NAND_MEMORG ---- - drivers/mtd/nand/spi/Makefile | 2 +- - drivers/mtd/nand/spi/core.c | 1 + - drivers/mtd/nand/spi/paragon.c | 147 +++++++++++++++++++++++++++++++++ - include/linux/mtd/spinand.h | 1 + - 4 files changed, 150 insertions(+), 1 deletion(-) - create mode 100644 drivers/mtd/nand/spi/paragon.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 toshiba.o winbond.o -+spinand-objs := core.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o - obj-$(CONFIG_MTD_SPI_NAND) += spinand.o ---- a/drivers/mtd/nand/spi/core.c -+++ b/drivers/mtd/nand/spi/core.c -@@ -765,6 +765,7 @@ static const struct spinand_manufacturer - &gigadevice_spinand_manufacturer, - ¯onix_spinand_manufacturer, - µn_spinand_manufacturer, -+ ¶gon_spinand_manufacturer, - &toshiba_spinand_manufacturer, - &winbond_spinand_manufacturer, - }; ---- /dev/null -+++ b/drivers/mtd/nand/spi/paragon.c -@@ -0,0 +1,147 @@ -+// SPDX-License-Identifier: GPL-2.0 -+/* -+ * Copyright (C) 2019 Jeff Kletsky -+ * -+ * Author: Jeff Kletsky <git-commits@allycomm.com> -+ */ -+ -+#include <linux/device.h> -+#include <linux/kernel.h> -+#include <linux/mtd/spinand.h> -+ -+ -+#define SPINAND_MFR_PARAGON 0xa1 -+ -+ -+#define PN26G0XA_STATUS_ECC_BITMASK (3 << 4) -+ -+#define PN26G0XA_STATUS_ECC_NONE_DETECTED (0 << 4) -+#define PN26G0XA_STATUS_ECC_1_7_CORRECTED (1 << 4) -+#define PN26G0XA_STATUS_ECC_ERRORED (2 << 4) -+#define PN26G0XA_STATUS_ECC_8_CORRECTED (3 << 4) -+ -+ -+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 pn26g0xa_ooblayout_ecc(struct mtd_info *mtd, int section, -+ struct mtd_oob_region *region) -+{ -+ if (section > 3) -+ return -ERANGE; -+ -+ region->offset = 6 + (15 * section); /* 4 BBM + 2 user bytes */ -+ region->length = 13; -+ -+ return 0; -+} -+ -+static int pn26g0xa_ooblayout_free(struct mtd_info *mtd, int section, -+ struct mtd_oob_region *region) -+{ -+ if (section > 4) -+ return -ERANGE; -+ -+ if (section == 4) { -+ region->offset = 64; -+ region->length = 64; -+ } else { -+ region->offset = 4 + (15 * section); -+ region->length = 2; -+ } -+ -+ return 0; -+} -+ -+static int pn26g0xa_ecc_get_status(struct spinand_device *spinand, -+ u8 status) -+{ -+ switch (status & PN26G0XA_STATUS_ECC_BITMASK) { -+ case PN26G0XA_STATUS_ECC_NONE_DETECTED: -+ return 0; -+ -+ case PN26G0XA_STATUS_ECC_1_7_CORRECTED: -+ return 7; /* Return upper limit by convention */ -+ -+ case PN26G0XA_STATUS_ECC_8_CORRECTED: -+ return 8; -+ -+ case PN26G0XA_STATUS_ECC_ERRORED: -+ return -EBADMSG; -+ -+ default: -+ break; -+ } -+ -+ return -EINVAL; -+} -+ -+static const struct mtd_ooblayout_ops pn26g0xa_ooblayout = { -+ .ecc = pn26g0xa_ooblayout_ecc, -+ .free = pn26g0xa_ooblayout_free, -+}; -+ -+ -+static const struct spinand_info paragon_spinand_table[] = { -+ SPINAND_INFO("PN26G01A", 0xe1, -+ NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1), -+ NAND_ECCREQ(8, 512), -+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants, -+ &write_cache_variants, -+ &update_cache_variants), -+ 0, -+ SPINAND_ECCINFO(&pn26g0xa_ooblayout, -+ pn26g0xa_ecc_get_status)), -+ SPINAND_INFO("PN26G02A", 0xe2, -+ NAND_MEMORG(1, 2048, 128, 64, 2048, 1, 1, 1), -+ NAND_ECCREQ(8, 512), -+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants, -+ &write_cache_variants, -+ &update_cache_variants), -+ 0, -+ SPINAND_ECCINFO(&pn26g0xa_ooblayout, -+ pn26g0xa_ecc_get_status)), -+}; -+ -+static int paragon_spinand_detect(struct spinand_device *spinand) -+{ -+ u8 *id = spinand->id.data; -+ int ret; -+ -+ /* Read ID returns [0][MID][DID] */ -+ -+ if (id[1] != SPINAND_MFR_PARAGON) -+ return 0; -+ -+ ret = spinand_match_and_init(spinand, paragon_spinand_table, -+ ARRAY_SIZE(paragon_spinand_table), -+ id[2]); -+ if (ret) -+ return ret; -+ -+ return 1; -+} -+ -+static const struct spinand_manufacturer_ops paragon_spinand_manuf_ops = { -+ .detect = paragon_spinand_detect, -+}; -+ -+const struct spinand_manufacturer paragon_spinand_manufacturer = { -+ .id = SPINAND_MFR_PARAGON, -+ .name = "Paragon", -+ .ops = ¶gon_spinand_manuf_ops, -+}; ---- a/include/linux/mtd/spinand.h -+++ b/include/linux/mtd/spinand.h -@@ -227,6 +227,7 @@ struct 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; -+extern const struct spinand_manufacturer paragon_spinand_manufacturer; - extern const struct spinand_manufacturer toshiba_spinand_manufacturer; - extern const struct spinand_manufacturer winbond_spinand_manufacturer; - |