Initial import of NFC GNSS SDK project

2026-09-15 16:10:12 +08:00
commit 2746cc3d4e
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+/*====*====*====*====*====*====*====*====*====*====*====*====*====*====*====*
+                winbond.c
+
+GENERAL DESCRIPTION
+
+    This file is for winbond SPI NAND.
+
+EXTERNALIZED FUNCTIONS
+
+INITIALIZATION AND SEQUENCING REQUIREMENTS
+
+   Copyright (c) 2019 by ASR micro.  All Rights Reserved.
+*====*====*====*====*====*====*====*====*====*====*====*====*====*====*====*
+
+*===========================================================================
+
+                        EDIT HISTORY FOR MODULE
+
+  This section contains comments describing changes made to the module.
+  Notice that changes are listed in reverse chronological order.
+
+
+when         who        what, where, why
+--------   ------     ----------------------------------------------------------
+07/30/2020   zhoujin    Created module
+===========================================================================*/
+
+/*===========================================================================
+
+                     INCLUDE FILES FOR MODULE
+
+===========================================================================*/
+#include "spinand.h"
+#include "common.h"
+
+/*===========================================================================
+
+            LOCAL DEFINITIONS AND DECLARATIONS FOR MODULE
+
+This section contains local definitions for constants, macros, types,
+variables and other items needed by this module.
+
+===========================================================================*/
+
+#define SPINAND_MFR_WINBOND     0xEF
+
+extern int spinand_die_select(struct spinand_device * spinand, unsigned int target);
+extern int spinand_disable_ecc(struct spinand_device * spinand);
+extern int spinand_select_target(struct spinand_device *spinand, unsigned int target);
+
+static int w25m02gv_select_target(struct spinand_device *spinand, unsigned int target)
+{
+	return spinand_die_select(spinand, target);
+}
+
+
+static const struct spinand_info winbond_spinand_table[] =
+{
+	SPINAND_INFO("W25M02GV",
+			SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xAB),
+			NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 2),
+			NAND_ECCREQ(1, 512, 0),
+			SPINAND_SELECT_TARGET(w25m02gv_select_target)),
+	SPINAND_INFO("W25N01GW",
+			SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xBA),
+			NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
+			NAND_ECCREQ(1, 512, 0)),
+	SPINAND_INFO("W25N01GV",
+			SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xAA),
+			NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
+			NAND_ECCREQ(1, 512, 0)),
+};
+
+static int winbond_spinand_init(struct spinand_device *spinand)
+{
+	struct nand_device *nand = spinand_to_nand(spinand);
+	unsigned int  i = 0;
+
+	for (i = 0; i < nand->memorg.ntargets; i++)
+	{
+		spinand_select_target(spinand, i);
+		/* Special initilization of Vendor.	*/
+
+		/* Enable ECC.	*/
+		spinand_disable_ecc(spinand);
+	}
+
+	return 0;
+}
+
+static const struct spinand_manufacturer_ops winbond_spinand_ops = 
+{
+	.init = winbond_spinand_init,
+};
+
+const struct spinand_manufacturer winbond_spinand_manufacturer = {
+	.id = SPINAND_MFR_WINBOND,
+	.name = "WINBOND",
+	.chips = winbond_spinand_table,
+	.nchips = ARRAY_SIZE(winbond_spinand_table),
+	.ops = &winbond_spinand_ops,
+};
+
+
+