mtd: nand: Move Micron specific init logic in nand_micron.c
Upstream linux commit 10d4e75c36f6c1.
Move Micron specific initialization logic into nand_micron.c. This is
part of the "separate vendor specific code from core" cleanup process.
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile
index 16e0775..8ef30b4 100644
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -14,7 +14,7 @@
obj-$(CONFIG_SPL_NAND_SIMPLE) += nand_spl_simple.o
obj-$(CONFIG_SPL_NAND_LOAD) += nand_spl_load.o
obj-$(CONFIG_SPL_NAND_ECC) += nand_ecc.o
-obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_hynix.o nand_samsung.o nand_toshiba.o
+obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_hynix.o nand_micron.o nand_samsung.o nand_toshiba.o
obj-$(CONFIG_SPL_NAND_IDENT) += nand_ids.o nand_timings.o
obj-$(CONFIG_TPL_NAND_INIT) += nand.o
ifeq ($(CONFIG_SPL_ENV_SUPPORT),y)
@@ -32,6 +32,7 @@
obj-y += nand_ecc.o
obj-y += nand_base.o
obj-y += nand_hynix.o
+obj-y += nand_micron.o
obj-y += nand_samsung.o
obj-y += nand_toshiba.o
obj-y += nand_timings.o
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 4ea7f10..fe7e049 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -3871,30 +3871,6 @@
return ret;
}
-static int nand_setup_read_retry_micron(struct mtd_info *mtd, int retry_mode)
-{
- struct nand_chip *chip = mtd_to_nand(mtd);
- uint8_t feature[ONFI_SUBFEATURE_PARAM_LEN] = {retry_mode};
-
- return chip->onfi_set_features(mtd, chip, ONFI_FEATURE_ADDR_READ_RETRY,
- feature);
-}
-
-/*
- * Configure chip properties from Micron vendor-specific ONFI table
- */
-static void nand_onfi_detect_micron(struct nand_chip *chip,
- struct nand_onfi_params *p)
-{
- struct nand_onfi_vendor_micron *micron = (void *)p->vendor;
-
- if (le16_to_cpu(p->vendor_revision) < 1)
- return;
-
- chip->read_retries = micron->read_retry_options;
- chip->setup_read_retry = nand_setup_read_retry_micron;
-}
-
/*
* Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise.
*/
@@ -3994,9 +3970,6 @@
pr_warn("Could not retrieve ONFI ECC requirements\n");
}
- if (p->jedec_id == NAND_MFR_MICRON)
- nand_onfi_detect_micron(chip, p);
-
return 1;
}
#else
@@ -4272,10 +4245,8 @@
* Micron devices with 2KiB pages and on SLC Samsung, Hynix, Toshiba,
* AMD/Spansion, and Macronix. All others scan only the first page.
*/
- if ((nand_is_slc(chip) &&
- (maf_id == NAND_MFR_AMD ||
- maf_id == NAND_MFR_MACRONIX)) ||
- (mtd->writesize == 2048 && maf_id == NAND_MFR_MICRON))
+ if (nand_is_slc(chip) &&
+ (maf_id == NAND_MFR_AMD || maf_id == NAND_MFR_MACRONIX))
chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
}
diff --git a/drivers/mtd/nand/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c
index 509652c..bb5ac83 100644
--- a/drivers/mtd/nand/raw/nand_ids.c
+++ b/drivers/mtd/nand/raw/nand_ids.c
@@ -195,7 +195,7 @@
{NAND_MFR_RENESAS, "Renesas"},
{NAND_MFR_STMICRO, "ST Micro"},
{NAND_MFR_HYNIX, "Hynix", &hynix_nand_manuf_ops},
- {NAND_MFR_MICRON, "Micron"},
+ {NAND_MFR_MICRON, "Micron", µn_nand_manuf_ops},
{NAND_MFR_AMD, "AMD/Spansion"},
{NAND_MFR_MACRONIX, "Macronix"},
{NAND_MFR_EON, "Eon"},
diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c
new file mode 100644
index 0000000..8b31c61
--- /dev/null
+++ b/drivers/mtd/nand/raw/nand_micron.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2017 Free Electrons
+ * Copyright (C) 2017 NextThing Co
+ *
+ * Author: Boris Brezillon <boris.brezillon@free-electrons.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/mtd/rawnand.h>
+
+struct nand_onfi_vendor_micron {
+ u8 two_plane_read;
+ u8 read_cache;
+ u8 read_unique_id;
+ u8 dq_imped;
+ u8 dq_imped_num_settings;
+ u8 dq_imped_feat_addr;
+ u8 rb_pulldown_strength;
+ u8 rb_pulldown_strength_feat_addr;
+ u8 rb_pulldown_strength_num_settings;
+ u8 otp_mode;
+ u8 otp_page_start;
+ u8 otp_data_prot_addr;
+ u8 otp_num_pages;
+ u8 otp_feat_addr;
+ u8 read_retry_options;
+ u8 reserved[72];
+ u8 param_revision;
+} __packed;
+
+static int micron_nand_setup_read_retry(struct mtd_info *mtd, int retry_mode)
+{
+ struct nand_chip *chip = mtd_to_nand(mtd);
+ u8 feature[ONFI_SUBFEATURE_PARAM_LEN] = {retry_mode};
+
+ return chip->onfi_set_features(mtd, chip, ONFI_FEATURE_ADDR_READ_RETRY,
+ feature);
+}
+
+/*
+ * Configure chip properties from Micron vendor-specific ONFI table
+ */
+static int micron_nand_onfi_init(struct nand_chip *chip)
+{
+ struct nand_onfi_params *p = &chip->onfi_params;
+ struct nand_onfi_vendor_micron *micron = (void *)p->vendor;
+
+ if (!chip->onfi_version)
+ return 0;
+
+ if (le16_to_cpu(p->vendor_revision) < 1)
+ return 0;
+
+ chip->read_retries = micron->read_retry_options;
+ chip->setup_read_retry = micron_nand_setup_read_retry;
+
+ return 0;
+}
+
+static int micron_nand_init(struct nand_chip *chip)
+{
+ struct mtd_info *mtd = nand_to_mtd(chip);
+ int ret;
+
+ ret = micron_nand_onfi_init(chip);
+ if (ret)
+ return ret;
+
+ if (mtd->writesize == 2048)
+ chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
+
+ return 0;
+}
+
+const struct nand_manufacturer_ops micron_nand_manuf_ops = {
+ .init = micron_nand_init,
+};