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path: root/drivers/mtd/nand/spi/gigadevice.c
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Diffstat (limited to 'drivers/mtd/nand/spi/gigadevice.c')
-rw-r--r--drivers/mtd/nand/spi/gigadevice.c209
1 files changed, 177 insertions, 32 deletions
diff --git a/drivers/mtd/nand/spi/gigadevice.c b/drivers/mtd/nand/spi/gigadevice.c
index cfd7c3b26dc4..72ad36c9a126 100644
--- a/drivers/mtd/nand/spi/gigadevice.c
+++ b/drivers/mtd/nand/spi/gigadevice.c
@@ -4,6 +4,7 @@
* Chuanhong Guo <gch981213@gmail.com>
*/
+#include <linux/bitfield.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/mtd/spinand.h>
@@ -23,45 +24,125 @@
#define GD5FXGQ4UXFXXG_STATUS_ECC_1_3_BITFLIPS (1 << 4)
#define GD5FXGQ4UXFXXG_STATUS_ECC_UNCOR_ERROR (7 << 4)
+/* Feature bit definitions */
+#define GD_FEATURE_NR BIT(3) /* Normal Read(1=normal,0=continuous) */
+#define GD_FEATURE_CRDC BIT(2) /* Continuous Read Dummy */
+
+/* ECC status extraction helpers */
+#define GD_ECCSR_LAST_PAGE(eccsr) FIELD_GET(GENMASK(3, 0), eccsr)
+#define GD_ECCSR_ACCUMULATED(eccsr) FIELD_GET(GENMASK(7, 4), eccsr)
+
+struct gigadevice_priv {
+ bool continuous_read;
+};
+
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));
+ SPINAND_PAGE_READ_FROM_CACHE_1S_4S_4S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_1S_4S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_2S_2S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_1S_2S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_FAST_1S_1S_1S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_1S_1S_OP(0, 1, NULL, 0, 0));
static SPINAND_OP_VARIANTS(read_cache_variants_f,
- SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, NULL, 0),
- SPINAND_PAGE_READ_FROM_CACHE_X4_OP_3A(0, 1, NULL, 0),
- SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
- SPINAND_PAGE_READ_FROM_CACHE_X2_OP_3A(0, 1, NULL, 0),
- SPINAND_PAGE_READ_FROM_CACHE_OP_3A(true, 0, 1, NULL, 0),
- SPINAND_PAGE_READ_FROM_CACHE_OP_3A(false, 0, 0, NULL, 0));
+ SPINAND_PAGE_READ_FROM_CACHE_1S_4S_4S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_3A_1S_1S_4S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_2S_2S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_3A_1S_1S_2S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_FAST_3A_1S_1S_1S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_3A_1S_1S_1S_OP(0, 0, NULL, 0, 0));
static SPINAND_OP_VARIANTS(read_cache_variants_1gq5,
- 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));
+ SPINAND_PAGE_READ_FROM_CACHE_1S_4S_4S_OP(0, 2, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_1S_4S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_2S_2S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_1S_2S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_FAST_1S_1S_1S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_1S_1S_OP(0, 1, NULL, 0, 0));
static SPINAND_OP_VARIANTS(read_cache_variants_2gq5,
- SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 4, NULL, 0),
- SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
- SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 2, 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));
+ SPINAND_PAGE_READ_FROM_CACHE_1S_4S_4S_OP(0, 4, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_1S_4S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_2S_2S_OP(0, 2, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_1S_2S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_FAST_1S_1S_1S_OP(0, 1, NULL, 0, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_1S_1S_OP(0, 1, NULL, 0, 0));
static SPINAND_OP_VARIANTS(write_cache_variants,
- SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
- SPINAND_PROG_LOAD(true, 0, NULL, 0));
+ SPINAND_PROG_LOAD_1S_1S_4S_OP(true, 0, NULL, 0),
+ SPINAND_PROG_LOAD_1S_1S_1S_OP(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));
+ SPINAND_PROG_LOAD_1S_1S_4S_OP(false, 0, NULL, 0),
+ SPINAND_PROG_LOAD_1S_1S_1S_OP(false, 0, NULL, 0));
+
+static int gd5fxgm9_get_eccsr(struct spinand_device *spinand, u8 *eccsr)
+{
+ struct gigadevice_priv *priv = spinand->priv;
+ struct spi_mem_op op = SPI_MEM_OP(SPI_MEM_OP_CMD(0x7c, 1),
+ SPI_MEM_OP_NO_ADDR,
+ SPI_MEM_OP_DUMMY(1, 1),
+ SPI_MEM_OP_DATA_IN(1, eccsr, 1));
+ int ret;
+
+ ret = spi_mem_exec_op(spinand->spimem, &op);
+ if (ret)
+ return ret;
+
+ if (priv->continuous_read)
+ *eccsr = GD_ECCSR_ACCUMULATED(*eccsr);
+ else
+ *eccsr = GD_ECCSR_LAST_PAGE(*eccsr);
+
+ return 0;
+}
+
+static int gd5fxgm9_ecc_get_status(struct spinand_device *spinand, u8 status)
+{
+ struct nand_device *nand = spinand_to_nand(spinand);
+ u8 eccsr;
+ int ret;
+
+ switch (status & STATUS_ECC_MASK) {
+ case STATUS_ECC_NO_BITFLIPS:
+ return 0;
+
+ case GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS:
+ ret = gd5fxgm9_get_eccsr(spinand, spinand->scratchbuf);
+ if (ret)
+ return nanddev_get_ecc_conf(nand)->strength;
+
+ eccsr = *spinand->scratchbuf;
+ if (WARN_ON(!eccsr || eccsr > nanddev_get_ecc_conf(nand)->strength))
+ return nanddev_get_ecc_conf(nand)->strength;
+
+ return eccsr;
+
+ case GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS:
+ return 8;
+
+ case STATUS_ECC_UNCOR_ERROR:
+ return -EBADMSG;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static int gd5fxgm9_set_continuous_read(struct spinand_device *spinand, bool enable)
+{
+ struct gigadevice_priv *priv = spinand->priv;
+ int ret;
+
+ ret = spinand_upd_cfg(spinand, GD_FEATURE_NR,
+ enable ? 0 : GD_FEATURE_NR);
+ if (ret)
+ return ret;
+
+ priv->continuous_read = enable;
+
+ return 0;
+}
static int gd5fxgq4xa_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
@@ -185,8 +266,8 @@ static int gd5fxgq4uexxg_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
u8 status2;
- struct spi_mem_op op = SPINAND_GET_FEATURE_OP(GD5FXGQXXEXXG_REG_STATUS2,
- &status2);
+ struct spi_mem_op op = SPINAND_GET_FEATURE_1S_1S_1S_OP(GD5FXGQXXEXXG_REG_STATUS2,
+ spinand->scratchbuf);
int ret;
switch (status & STATUS_ECC_MASK) {
@@ -207,6 +288,7 @@ static int gd5fxgq4uexxg_ecc_get_status(struct spinand_device *spinand,
* report the maximum of 4 in this case
*/
/* bits sorted this way (3...0): ECCS1,ECCS0,ECCSE1,ECCSE0 */
+ status2 = *(spinand->scratchbuf);
return ((status & STATUS_ECC_MASK) >> 2) |
((status2 & STATUS_ECC_MASK) >> 4);
@@ -227,8 +309,8 @@ static int gd5fxgq5xexxg_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
u8 status2;
- struct spi_mem_op op = SPINAND_GET_FEATURE_OP(GD5FXGQXXEXXG_REG_STATUS2,
- &status2);
+ struct spi_mem_op op = SPINAND_GET_FEATURE_1S_1S_1S_OP(GD5FXGQXXEXXG_REG_STATUS2,
+ spinand->scratchbuf);
int ret;
switch (status & STATUS_ECC_MASK) {
@@ -248,6 +330,7 @@ static int gd5fxgq5xexxg_ecc_get_status(struct spinand_device *spinand,
* 1 ... 4 bits are flipped (and corrected)
*/
/* bits sorted this way (1...0): ECCSE1, ECCSE0 */
+ status2 = *(spinand->scratchbuf);
return ((status2 & STATUS_ECC_MASK) >> 4) + 1;
case STATUS_ECC_UNCOR_ERROR:
@@ -511,9 +594,71 @@ static const struct spinand_info gigadevice_spinand_table[] = {
SPINAND_HAS_QE_BIT,
SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
gd5fxgq4uexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F1GQ5RExxH",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x21),
+ NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
+ NAND_ECCREQ(4, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgq4uexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F1GQ4RExxH",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xc9),
+ NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
+ NAND_ECCREQ(4, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgq4uexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F1GM9UExxG",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x91, 0x01),
+ NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
+ NAND_ECCREQ(8, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgm9_ecc_get_status),
+ SPINAND_CONT_READ(gd5fxgm9_set_continuous_read)),
+ SPINAND_INFO("GD5F1GM9RExxG",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x81, 0x01),
+ NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
+ NAND_ECCREQ(8, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgm9_ecc_get_status),
+ SPINAND_CONT_READ(gd5fxgm9_set_continuous_read)),
};
+static int gd5fxgm9_spinand_init(struct spinand_device *spinand)
+{
+ struct gigadevice_priv *priv;
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ spinand->priv = priv;
+
+ return 0;
+}
+
+static void gd5fxgm9_spinand_cleanup(struct spinand_device *spinand)
+{
+ kfree(spinand->priv);
+}
+
static const struct spinand_manufacturer_ops gigadevice_spinand_manuf_ops = {
+ .init = gd5fxgm9_spinand_init,
+ .cleanup = gd5fxgm9_spinand_cleanup,
};
const struct spinand_manufacturer gigadevice_spinand_manufacturer = {
generated by cgit (git 2.34.1) at 2025-12-25 11:38:57 +0000