You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
129 lines
3.6 KiB
129 lines
3.6 KiB
From c40c7a990a46e5102a1cc4190557bf315d32d80d Mon Sep 17 00:00:00 2001
|
|
From: Stefan Roese <sr@denx.de>
|
|
Date: Thu, 24 Jan 2019 13:48:06 +0100
|
|
Subject: [PATCH] mtd: spinand: Add support for GigaDevice GD5F1GQ4UExxG
|
|
|
|
Add support for GigaDevice GD5F1GQ4UExxG SPI NAND chip.
|
|
|
|
Signed-off-by: Stefan Roese <sr@denx.de>
|
|
Cc: Chuanhong Guo <gch981213@gmail.com>
|
|
Cc: Frieder Schrempf <frieder.schrempf@kontron.de>
|
|
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
|
|
Cc: Boris Brezillon <bbrezillon@kernel.org>
|
|
Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>
|
|
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
|
|
---
|
|
drivers/mtd/nand/spi/gigadevice.c | 83 +++++++++++++++++++++++++++++++++++++++
|
|
1 file changed, 83 insertions(+)
|
|
|
|
--- a/drivers/mtd/nand/spi/gigadevice.c
|
|
+++ b/drivers/mtd/nand/spi/gigadevice.c
|
|
@@ -12,6 +12,8 @@
|
|
#define GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS (1 << 4)
|
|
#define GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS (3 << 4)
|
|
|
|
+#define GD5FXGQ4UEXXG_REG_STATUS2 0xf0
|
|
+
|
|
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),
|
|
@@ -81,11 +83,83 @@ static int gd5fxgq4xa_ecc_get_status(str
|
|
return -EINVAL;
|
|
}
|
|
|
|
+static int gd5fxgq4uexxg_ooblayout_ecc(struct mtd_info *mtd, int section,
|
|
+ struct mtd_oob_region *region)
|
|
+{
|
|
+ if (section)
|
|
+ return -ERANGE;
|
|
+
|
|
+ region->offset = 64;
|
|
+ region->length = 64;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int gd5fxgq4uexxg_ooblayout_free(struct mtd_info *mtd, int section,
|
|
+ struct mtd_oob_region *region)
|
|
+{
|
|
+ if (section)
|
|
+ return -ERANGE;
|
|
+
|
|
+ /* Reserve 1 bytes for the BBM. */
|
|
+ region->offset = 1;
|
|
+ region->length = 63;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int gd5fxgq4uexxg_ecc_get_status(struct spinand_device *spinand,
|
|
+ u8 status)
|
|
+{
|
|
+ u8 status2;
|
|
+ struct spi_mem_op op = SPINAND_GET_FEATURE_OP(GD5FXGQ4UEXXG_REG_STATUS2,
|
|
+ &status2);
|
|
+ int ret;
|
|
+
|
|
+ switch (status & STATUS_ECC_MASK) {
|
|
+ case STATUS_ECC_NO_BITFLIPS:
|
|
+ return 0;
|
|
+
|
|
+ case GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS:
|
|
+ /*
|
|
+ * Read status2 register to determine a more fine grained
|
|
+ * bit error status
|
|
+ */
|
|
+ ret = spi_mem_exec_op(spinand->spimem, &op);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
+ /*
|
|
+ * 4 ... 7 bits are flipped (1..4 can't be detected, so
|
|
+ * report the maximum of 4 in this case
|
|
+ */
|
|
+ /* bits sorted this way (3...0): ECCS1,ECCS0,ECCSE1,ECCSE0 */
|
|
+ return ((status & STATUS_ECC_MASK) >> 2) |
|
|
+ ((status2 & STATUS_ECC_MASK) >> 4);
|
|
+
|
|
+ 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 mtd_ooblayout_ops gd5fxgq4uexxg_ooblayout = {
|
|
+ .ecc = gd5fxgq4uexxg_ooblayout_ecc,
|
|
+ .free = gd5fxgq4uexxg_ooblayout_free,
|
|
+};
|
|
+
|
|
static const struct spinand_info gigadevice_spinand_table[] = {
|
|
SPINAND_INFO("GD5F1GQ4xA", 0xF1,
|
|
NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1),
|
|
@@ -114,6 +188,15 @@ static const struct spinand_info gigadev
|
|
0,
|
|
SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout,
|
|
gd5fxgq4xa_ecc_get_status)),
|
|
+ SPINAND_INFO("GD5F1GQ4UExxG", 0xd1,
|
|
+ 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(&gd5fxgq4uexxg_ooblayout,
|
|
+ gd5fxgq4uexxg_ecc_get_status)),
|
|
};
|
|
|
|
static int gigadevice_spinand_detect(struct spinand_device *spinand)
|
|
|