Merge tag 'efi-2020-07-rc6' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi

[oweals/u-boot.git] / include / linux / mtd / rawnand.h

diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 6c3e838d809d009b1ccc596527e9e5493167312d..66febc6b72125ce3f84d03c8ab2d24ffce670d73 100644 (file)
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  *  Copyright © 2000-2010 David Woodhouse <dwmw2@infradead.org>
  *                        Steven J. Hill <sjhill@realitydiluted.com>
  *                       Thomas Gleixner <tglx@linutronix.de>
  *
- * SPDX-License-Identifier:    GPL-2.0+
- *
  * Info:
  *     Contains standard defines and IDs for NAND flash devices
  *
@@ -16,6 +15,8 @@
 
 #include <config.h>
 
+#include <dm/device.h>
+#include <linux/bitops.h>
 #include <linux/compat.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/flashchip.h>
@@ -23,9 +24,16 @@
 #include <asm/cache.h>
 
 struct mtd_info;
+struct nand_chip;
 struct nand_flash_dev;
 struct device_node;
 
+/* Get the flash and manufacturer id and lookup if the type is supported. */
+struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
+                                          struct nand_chip *chip,
+                                          int *maf_id, int *dev_id,
+                                          struct nand_flash_dev *type);
+
 /* Scan and identify a NAND device */
 int nand_scan(struct mtd_info *mtd, int max_chips);
 /*
@@ -137,6 +145,12 @@ typedef enum {
        NAND_ECC_SOFT_BCH,
 } nand_ecc_modes_t;
 
+enum nand_ecc_algo {
+       NAND_ECC_UNKNOWN,
+       NAND_ECC_HAMMING,
+       NAND_ECC_BCH,
+};
+
 /*
  * Constants for Hardware ECC
  */
@@ -248,9 +262,6 @@ typedef enum {
 #define NAND_CI_CELLTYPE_MSK   0x0C
 #define NAND_CI_CELLTYPE_SHIFT 2
 
-/* Keep gcc happy */
-struct nand_chip;
-
 /* ONFI features */
 #define ONFI_FEATURE_16_BIT_BUS                (1 << 0)
 #define ONFI_FEATURE_EXT_PARAM_PAGE    (1 << 7)
@@ -489,6 +500,13 @@ struct nand_hw_control {
        struct nand_chip *active;
 };
 
+static inline void nand_hw_control_init(struct nand_hw_control *nfc)
+{
+       nfc->active = NULL;
+       spin_lock_init(&nfc->lock);
+       init_waitqueue_head(&nfc->wq);
+}
+
 /**
  * struct nand_ecc_step_info - ECC step information of ECC engine
  * @stepsize: data bytes per ECC step
@@ -530,6 +548,7 @@ static const struct nand_ecc_caps __name = {                        \
 /**
  * struct nand_ecc_ctrl - Control structure for ECC
  * @mode:      ECC mode
+ * @algo:      ECC algorithm
  * @steps:     number of ECC steps per page
  * @size:      data bytes per ECC step
  * @bytes:     ECC bytes per step
@@ -580,6 +599,7 @@ static const struct nand_ecc_caps __name = {                        \
  */
 struct nand_ecc_ctrl {
        nand_ecc_modes_t mode;
+       enum nand_ecc_algo algo;
        int steps;
        int size;
        int bytes;
@@ -950,6 +970,17 @@ struct nand_chip {
        void *priv;
 };
 
+static inline void nand_set_flash_node(struct nand_chip *chip,
+                                      ofnode node)
+{
+       chip->flash_node = ofnode_to_offset(node);
+}
+
+static inline ofnode nand_get_flash_node(struct nand_chip *chip)
+{
+       return offset_to_ofnode(chip->flash_node);
+}
+
 static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd)
 {
        return container_of(mtd, struct nand_chip, mtd);
@@ -1269,4 +1300,34 @@ int nand_maximize_ecc(struct nand_chip *chip,
 
 /* Reset and initialize a NAND device */
 int nand_reset(struct nand_chip *chip, int chipnr);
+
+/* NAND operation helpers */
+int nand_reset_op(struct nand_chip *chip);
+int nand_readid_op(struct nand_chip *chip, u8 addr, void *buf,
+                  unsigned int len);
+int nand_status_op(struct nand_chip *chip, u8 *status);
+int nand_exit_status_op(struct nand_chip *chip);
+int nand_erase_op(struct nand_chip *chip, unsigned int eraseblock);
+int nand_read_page_op(struct nand_chip *chip, unsigned int page,
+                     unsigned int offset_in_page, void *buf, unsigned int len);
+int nand_change_read_column_op(struct nand_chip *chip,
+                              unsigned int offset_in_page, void *buf,
+                              unsigned int len, bool force_8bit);
+int nand_read_oob_op(struct nand_chip *chip, unsigned int page,
+                    unsigned int offset_in_page, void *buf, unsigned int len);
+int nand_prog_page_begin_op(struct nand_chip *chip, unsigned int page,
+                           unsigned int offset_in_page, const void *buf,
+                           unsigned int len);
+int nand_prog_page_end_op(struct nand_chip *chip);
+int nand_prog_page_op(struct nand_chip *chip, unsigned int page,
+                     unsigned int offset_in_page, const void *buf,
+                     unsigned int len);
+int nand_change_write_column_op(struct nand_chip *chip,
+                               unsigned int offset_in_page, const void *buf,
+                               unsigned int len, bool force_8bit);
+int nand_read_data_op(struct nand_chip *chip, void *buf, unsigned int len,
+                     bool force_8bit);
+int nand_write_data_op(struct nand_chip *chip, const void *buf,
+                      unsigned int len, bool force_8bit);
+
 #endif /* __LINUX_MTD_RAWNAND_H */