diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch')
-rw-r--r-- | target/linux/generic/backport-5.4/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/target/linux/generic/backport-5.4/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch b/target/linux/generic/backport-5.4/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch deleted file mode 100644 index 4e6f18a4cb..0000000000 --- a/target/linux/generic/backport-5.4/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch +++ /dev/null @@ -1,196 +0,0 @@ -From c93c613214ac70c87beab5422a60077bf126b855 Mon Sep 17 00:00:00 2001 -From: Chuanhong Guo <gch981213@gmail.com> -Date: Wed, 28 Nov 2018 21:07:25 +0800 -Subject: [PATCH 3/8] mtd: spinand: add support for GigaDevice GD5FxGQ4xA - -Add support for GigaDevice GD5F1G/2G/4GQ4xA SPI NAND. - -Signed-off-by: Chuanhong Guo <gch981213@gmail.com> -Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de> -Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> ---- - drivers/mtd/nand/spi/Makefile | 2 +- - drivers/mtd/nand/spi/core.c | 1 + - drivers/mtd/nand/spi/gigadevice.c | 148 ++++++++++++++++++++++++++++++ - include/linux/mtd/spinand.h | 1 + - 4 files changed, 151 insertions(+), 1 deletion(-) - create mode 100644 drivers/mtd/nand/spi/gigadevice.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 macronix.o micron.o toshiba.o winbond.o -+spinand-objs := core.o gigadevice.o macronix.o micron.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 -@@ -762,6 +762,7 @@ static const struct nand_ops spinand_ops - }; - - static const struct spinand_manufacturer *spinand_manufacturers[] = { -+ &gigadevice_spinand_manufacturer, - ¯onix_spinand_manufacturer, - µn_spinand_manufacturer, - &toshiba_spinand_manufacturer, ---- /dev/null -+++ b/drivers/mtd/nand/spi/gigadevice.c -@@ -0,0 +1,148 @@ -+// SPDX-License-Identifier: GPL-2.0 -+/* -+ * Author: -+ * Chuanhong Guo <gch981213@gmail.com> -+ */ -+ -+#include <linux/device.h> -+#include <linux/kernel.h> -+#include <linux/mtd/spinand.h> -+ -+#define SPINAND_MFR_GIGADEVICE 0xC8 -+#define GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS (1 << 4) -+#define GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS (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 gd5fxgq4xa_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 gd5fxgq4xa_ooblayout_free(struct mtd_info *mtd, int section, -+ struct mtd_oob_region *region) -+{ -+ if (section > 3) -+ return -ERANGE; -+ -+ if (section) { -+ region->offset = 16 * section; -+ region->length = 8; -+ } else { -+ /* section 0 has one byte reserved for bad block mark */ -+ region->offset = 1; -+ region->length = 7; -+ } -+ return 0; -+} -+ -+static int gd5fxgq4xa_ecc_get_status(struct spinand_device *spinand, -+ u8 status) -+{ -+ switch (status & STATUS_ECC_MASK) { -+ case STATUS_ECC_NO_BITFLIPS: -+ return 0; -+ -+ case GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS: -+ /* 1-7 bits are flipped. return the maximum. */ -+ return 7; -+ -+ case GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS: -+ return 8; -+ -+ case STATUS_ECC_UNCOR_ERROR: -+ return -EBADMSG; -+ -+ default: -+ break; -+ } -+ -+ return -EINVAL; -+} -+ -+static const struct mtd_ooblayout_ops gd5fxgq4xa_ooblayout = { -+ .ecc = gd5fxgq4xa_ooblayout_ecc, -+ .free = gd5fxgq4xa_ooblayout_free, -+}; -+ -+static const struct spinand_info gigadevice_spinand_table[] = { -+ SPINAND_INFO("GD5F1GQ4xA", 0xF1, -+ NAND_MEMORG(1, 2048, 64, 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(&gd5fxgq4xa_ooblayout, -+ gd5fxgq4xa_ecc_get_status)), -+ SPINAND_INFO("GD5F2GQ4xA", 0xF2, -+ NAND_MEMORG(1, 2048, 64, 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(&gd5fxgq4xa_ooblayout, -+ gd5fxgq4xa_ecc_get_status)), -+ SPINAND_INFO("GD5F4GQ4xA", 0xF4, -+ NAND_MEMORG(1, 2048, 64, 64, 4096, 1, 1, 1), -+ NAND_ECCREQ(8, 512), -+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants, -+ &write_cache_variants, -+ &update_cache_variants), -+ 0, -+ SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout, -+ gd5fxgq4xa_ecc_get_status)), -+}; -+ -+static int gigadevice_spinand_detect(struct spinand_device *spinand) -+{ -+ u8 *id = spinand->id.data; -+ int ret; -+ -+ /* -+ * For GD NANDs, There is an address byte needed to shift in before IDs -+ * are read out, so the first byte in raw_id is dummy. -+ */ -+ if (id[1] != SPINAND_MFR_GIGADEVICE) -+ return 0; -+ -+ ret = spinand_match_and_init(spinand, gigadevice_spinand_table, -+ ARRAY_SIZE(gigadevice_spinand_table), -+ id[2]); -+ if (ret) -+ return ret; -+ -+ return 1; -+} -+ -+static const struct spinand_manufacturer_ops gigadevice_spinand_manuf_ops = { -+ .detect = gigadevice_spinand_detect, -+}; -+ -+const struct spinand_manufacturer gigadevice_spinand_manufacturer = { -+ .id = SPINAND_MFR_GIGADEVICE, -+ .name = "GigaDevice", -+ .ops = &gigadevice_spinand_manuf_ops, -+}; ---- a/include/linux/mtd/spinand.h -+++ b/include/linux/mtd/spinand.h -@@ -194,6 +194,7 @@ struct spinand_manufacturer { - }; - - /* SPI NAND manufacturers */ -+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 toshiba_spinand_manufacturer; |