From: shiva.linuxworks@gmail.com
To: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Boris Brezillon <bbrezillon@kernel.org>,
Frieder Schrempf <frieder.schrempf@kontron.de>,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Shivamurthy Shastri <sshivamurthy@micron.com>
Subject: [PATCH 4/4] mtd: spinand: Add new Micron SPI NAND devices with multiple dies
Date: Sun, 19 Jan 2020 15:54:32 +0100 [thread overview]
Message-ID: <20200119145432.10405-5-sshivamurthy@micron.com> (raw)
In-Reply-To: <20200119145432.10405-1-sshivamurthy@micron.com>
From: Shivamurthy Shastri <sshivamurthy@micron.com>
Add device table for new Micron SPI NAND devices, which have multiple
dies. While at it, add support to select the die.
Signed-off-by: Shivamurthy Shastri <sshivamurthy@micron.com>
---
drivers/mtd/nand/spi/micron.c | 50 +++++++++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/drivers/mtd/nand/spi/micron.c b/drivers/mtd/nand/spi/micron.c
index 45fc37c58f8a..03b486843210 100644
--- a/drivers/mtd/nand/spi/micron.c
+++ b/drivers/mtd/nand/spi/micron.c
@@ -18,6 +18,8 @@
#define MICRON_STATUS_ECC_4TO6_BITFLIPS (3 << 4)
#define MICRON_STATUS_ECC_7TO8_BITFLIPS (5 << 4)
+#define MICRON_DIE_SELECTION_BIT 6
+
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),
@@ -64,6 +66,21 @@ static const struct mtd_ooblayout_ops micron_8_ooblayout = {
.free = micron_8_ooblayout_free,
};
+static int micron_select_target(struct spinand_device *spinand,
+ unsigned int target)
+{
+ struct spi_mem_op op = SPINAND_SET_FEATURE_OP(0xd0,
+ spinand->scratchbuf);
+
+ /*
+ * As per datasheet, die selection is done by the 6th bit of Die
+ * Select Register (Address 0xD0).
+ */
+ *spinand->scratchbuf = target << MICRON_DIE_SELECTION_BIT;
+
+ return spi_mem_exec_op(spinand->spimem, &op);
+}
+
static int micron_8_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
@@ -131,6 +148,17 @@ static const struct spinand_info micron_spinand_table[] = {
0,
SPINAND_ECCINFO(µn_8_ooblayout,
micron_8_ecc_get_status)),
+ /* M79A 4Gb 3.3V */
+ SPINAND_INFO("MT29F4G01ADAGD", 0x36,
+ NAND_MEMORG(1, 2048, 128, 64, 2048, 80, 2, 1, 2),
+ NAND_ECCREQ(8, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ 0,
+ SPINAND_ECCINFO(µn_8_ooblayout,
+ micron_8_ecc_get_status),
+ SPINAND_SELECT_TARGET(micron_select_target)),
/* M70A 4Gb 3.3V */
SPINAND_INFO("MT29F4G01ABAFD", 0x34,
NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
@@ -151,6 +179,28 @@ static const struct spinand_info micron_spinand_table[] = {
0,
SPINAND_ECCINFO(µn_8_ooblayout,
micron_8_ecc_get_status)),
+ /* M70A 8Gb 3.3V */
+ SPINAND_INFO("MT29F8G01ADAFD", 0x46,
+ NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 2),
+ NAND_ECCREQ(8, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ 0,
+ SPINAND_ECCINFO(µn_8_ooblayout,
+ micron_8_ecc_get_status),
+ SPINAND_SELECT_TARGET(micron_select_target)),
+ /* M70A 8Gb 1.8V */
+ SPINAND_INFO("MT29F8G01ADBFD", 0x47,
+ NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 2),
+ NAND_ECCREQ(8, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ 0,
+ SPINAND_ECCINFO(µn_8_ooblayout,
+ micron_8_ecc_get_status),
+ SPINAND_SELECT_TARGET(micron_select_target)),
};
static int micron_spinand_detect(struct spinand_device *spinand)
--
2.17.1
next prev parent reply other threads:[~2020-01-19 14:57 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-19 14:54 [PATCH 0/4] Add new series Micron SPI NAND devices shiva.linuxworks
2020-01-19 14:54 ` [PATCH 1/4] mtd: spinand: Generalize the OOB layout structure and function names shiva.linuxworks
2020-01-30 8:30 ` Miquel Raynal
2020-01-19 14:54 ` [PATCH 2/4] mtd: spinand: Add new Micron SPI NAND devices shiva.linuxworks
2020-01-19 14:54 ` [PATCH 3/4] mtd: spinand: Add M70A series " shiva.linuxworks
2020-01-20 10:16 ` Miquel Raynal
2020-01-21 12:23 ` [EXT] " Shivamurthy Shastri (sshivamurthy)
2020-01-21 13:40 ` Miquel Raynal
2020-01-21 14:59 ` Shivamurthy Shastri (sshivamurthy)
2020-01-21 15:27 ` Miquel Raynal
2020-01-23 9:01 ` Shivamurthy Shastri (sshivamurthy)
2020-01-19 14:54 ` shiva.linuxworks [this message]
2020-01-20 10:22 ` [PATCH 4/4] mtd: spinand: Add new Micron SPI NAND devices with multiple dies Miquel Raynal
2020-01-21 12:23 ` [EXT] " Shivamurthy Shastri (sshivamurthy)
2020-01-21 13:44 ` Miquel Raynal
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