include/linux/amlogic/aml_mtd_nand.h - manifest_repos/kernel - Git at Google

 /* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
 /*
  * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
  */

 #ifndef __AMLMTD_NAND_H_
 #define __AMLMTD_NAND_H_

 #include <linux/mtd/rawnand.h>
 #include <linux/clk-provider.h>
 #include <linux/amlogic/aml_storage.h>

 #define NAND_TIMING_MODE0  0x0
 #define NAND_TIMING_MODE1  0x1
 #define NAND_TIMING_MODE2  0x2
 #define NAND_TIMING_MODE3  0x3
 #define NAND_TIMING_MODE4  0x4
 #define NAND_TIMING_MODE5  0x5

 #define NFC_REG_CMD		0x00
 #define NFC_CMD_IDLE		(0xc << 14)
 #define NFC_CMD_CLE		(0x5 << 14)
 #define NFC_CMD_ALE		(0x6 << 14)
 #define NFC_CMD_ADL		((0 << 16) | (3 << 20))
 #define NFC_CMD_ADH		((1 << 16) | (3 << 20))
 #define NFC_CMD_AIL		((2 << 16) | (3 << 20))
 #define NFC_CMD_AIH		((3 << 16) | (3 << 20))
 #define NFC_CMD_SEED		((8 << 16) | (3 << 20))
 #define NFC_CMD_M2N		((0 << 17) | (2 << 20))
 #define NFC_CMD_N2M		((1 << 17) | (2 << 20))
 #define NFC_CMD_DRD		(0x8 << 14)
 #define NFC_CMD_RB		BIT(20)
 #define NFC_CMD_SCRAMBLER_ENABLE	1 //BIT(19)
 #define NFC_CMD_SCRAMBLER_DISABLE	0
 #define NFC_CMD_SHORTMODE_DISABLE	0
 #define NFC_CMD_SHORTMODE_ENABLE	1
 #define NFC_CMD_RB_INT		BIT(14)

 #define NFC_CMD_GET_SIZE(x)	(((x) >> 22) & GENMASK(4, 0))

 #define NFC_REG_CFG		0x04
 #define NFC_REG_DADR		0x08
 #define NFC_REG_IADR		0x0c
 #define NFC_REG_BUF		0x10
 #define NFC_REG_INFO		0x14
 #define NFC_REG_DC		0x18
 #define NFC_REG_ADR		0x1c
 #define NFC_REG_DL		0x20
 #define NFC_REG_DH		0x24
 #define NFC_REG_CADR		0x28
 #define NFC_REG_SADR		0x2c
 #define NFC_REG_PINS		0x30
 #define NFC_REG_VER		0x38

 #define NFC_RB_IRQ_EN		BIT(21)

 #define CMDRWGEN(cmd_dir, ran, bch, short_mode, page_size, pages)	\
 	(								\
 		(cmd_dir)			|			\
 		((ran) << 19)			|			\
 		((bch) << 14)			|			\
 		((short_mode) << 13)		|			\
 		(((page_size) & 0x7f) << 6)	|			\
 		((pages) & 0x3f)					\
 	)

 #define GENCMDDADDRL(adl, addr)		((adl) | ((addr) & 0xffff))
 #define GENCMDDADDRH(adh, addr)		((adh) | (((addr) >> 16) & 0xffff))
 #define GENCMDIADDRL(ail, addr)		((ail) | ((addr) & 0xffff))
 #define GENCMDIADDRH(aih, addr)		((aih) | (((addr) >> 16) & 0xffff))

 #define DMA_DIR(dir)		((dir) ? NFC_CMD_N2M : NFC_CMD_M2N)

 #define ECC_CHECK_RETURN_FF	(-1)

 #define NAND_CE0		(0xe << 10)
 #define NAND_CE1		(0xd << 10)

 #define DMA_BUSY_TIMEOUT	0x100000
 #define CMD_FIFO_EMPTY_TIMEOUT	1000

 #define MAX_CE_NUM		2
 #define NAND_MAX_DEVICE	4

 /* eMMC clock register, misc control */
 #define CLK_SELECT_NAND		BIT(31)

 #define NFC_CLK_CYCLE		6

 /* nand flash controller delay 3 ns */
 #define NFC_DEFAULT_DELAY	3000

 #define ROW_ADDER(page, index)	(((page) >> (8 * (index))) & 0xff)
 #define MAX_CYCLE_ADDRS		5
 #define DIRREAD			1
 #define DIRWRITE		0

 #define ECC_PARITY_BCH8_512B	14
 #define ECC_COMPLETE            BIT(31)
 #define ECC_ERR_CNT(x)		(((x) >> 24) & GENMASK(5, 0))
 #define ECC_ZERO_CNT(x)		(((x) >> 16) & GENMASK(5, 0))
 #define ECC_UNCORRECTABLE	0x3f

 #define PER_INFO_BYTE		8

 #define NAND_BLOCK_GOOD	0
 #define NAND_BLOCK_BAD	1
 #define NAND_FACTORY_BAD	2

 /* Max total is 1024 as romboot says so... */
 #define BOOT_TOTAL_PAGES	(1024)
 #define NAND_FIPMODE_DISCRETE   (1)
 struct meson_nfc_nand_chip {
 	struct list_head node;
 	struct nand_chip nand;
 	unsigned long clk_rate;
 	unsigned long level1_divider;
 	u32 bus_timing;
 	u32 twb;
 	u32 tadl;
 	u32 tbers_max;
 	u32 bch_info;
 	u32 bch_mode;
 	u8 *data_buf;
 	__le64 *info_buf;
 	u32 nsels;
 	u8 sels[0];
 };

 struct meson_nand_ecc {
 	u32 bch;
 	u32 strength;
 	u32 step_size;
 };

 struct meson_nfc_data {
 	const struct nand_ecc_caps *ecc_caps;
 	int bl2ex_mode;
 };

 struct meson_nfc_param {
 	u32 chip_select;
 	u32 rb_select;
 };

 struct nand_rw_cmd {
 	u32 cmd0;
 	u32 addrs[MAX_CYCLE_ADDRS];
 	u32 cmd1;
 };

 struct nand_timing {
 	u32 twb;
 	u32 tadl;
 	u32 tbers_max;
 };

 struct meson_nfc {
 	struct nand_controller controller;
 	struct clk *clk_gate;
 	struct clk *fix_div2_pll;
 	struct clk_divider nand_divider;
 	struct clk *nand_div_clk;
 	unsigned long clk_rate;
 	u32 bus_timing;

 	struct device *dev;
 	void __iomem *reg_base;
 	void __iomem *nand_clk_reg;

 	struct completion completion;
 	struct list_head chips;
 	const struct meson_nfc_data *data;
 	struct meson_nfc_param param;
 	struct nand_timing timing;
 	struct meson_rsv_handler_t *rsv;
 	union {
 		int cmd[32];
 		struct nand_rw_cmd rw;
 	} cmdfifo;

 	dma_addr_t daddr;
 	dma_addr_t iaddr;

 	unsigned long assigned_cs;
 	s8 *block_status;

 	struct para_form_dts {
 		u32 clk_ctrl_base;
 		u32 bl_mode;
 		u32 fip_copies;
 		u32 fip_size;
 		u32 skip_bad_block;
 		u32 disa_irq_hand;
 	} param_from_dts;

 	struct pinctrl *nand_pinctrl;
 	struct pinctrl_state *nand_norbstate;
 	struct pinctrl_state *nand_idlestate;
 };

 /**for info page0 information**/
 union sc2_cmdinfo {
 	u32 d32;
 	struct {
 		unsigned cmd:22;
 		unsigned page_list:1;
 		unsigned new_type:8;
 		unsigned reserved:1;
 	} b;
 };

 struct _nand_setup_sc2 {
 	union sc2_cmdinfo cfg;
 	u16 id;
 	u16 max;
 };

 union cmdinfo {
 	u32 d32;
 	struct {
 		unsigned cmd:22;
 		unsigned large_page:1;
 		unsigned no_rb:1;
 		unsigned a2:1;
 		unsigned reserved25:1;
 		unsigned page_list:1;
 		unsigned sync_mode:2;
 		unsigned size:2;
 		unsigned active:1;
 	} b;
 };

 struct _nand_setup {
 	union cmdinfo cfg;
 	u16 id;
 	u16 max;
 };

 struct _nand_cmd {
 	unsigned char type;
 	unsigned char val;
 };

 struct _ext_info {
 	u32 read_info;
 	u32 new_type;
 	u32 pages_per_blk;
 	u32 xlc;
 	u32 ce_mask;
 	u32 boot_num;
 	u32 each_boot_pages;
 	u32 bbt_occupy_pages;
 	u32 bbt_start_block;
 };

 struct _fip_info {
 	u16 version;
 	u16 mode; /*compact or discrete*/
 	u32 fip_start; /*fip_start, pages*/
 };

 #define NAND_PAGELIST_CNT 16
 #define NAND_ECC_UNIT_SHORT 384
 /*max size 384 bytes*/
 struct _nand_page0 {
 	struct _nand_setup nand_setup;
 	unsigned char page_list[NAND_PAGELIST_CNT];
 	struct _nand_cmd retry_usr[32];
 	struct _ext_info ext_info;
 	struct _fip_info fip_info;
 	u32 ddrp_start_page;
 };

 struct _nand_page0_sc2 {
 	struct _nand_setup_sc2 nand_setup;
 	unsigned char page_list[32];
 	struct _nand_cmd retry_usr[32];
 	struct _ext_info ext_info;
 	struct _fip_info fip_info;
 	u32 ddrp_start_page;
 };

 /**end info page0 information**/
 extern struct mtd_part_parser ofpart_meson_parser;
 extern struct nand_flash_dev aml_nand_flash_ids[];

 #endif  /* __AMLMTD_NAND_H_ */
	/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
	/*
	* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
	*/

	#ifndef __AMLMTD_NAND_H_
	#define __AMLMTD_NAND_H_

	#include <linux/mtd/rawnand.h>
	#include <linux/clk-provider.h>
	#include <linux/amlogic/aml_storage.h>

	#define NAND_TIMING_MODE0 0x0
	#define NAND_TIMING_MODE1 0x1
	#define NAND_TIMING_MODE2 0x2
	#define NAND_TIMING_MODE3 0x3
	#define NAND_TIMING_MODE4 0x4
	#define NAND_TIMING_MODE5 0x5

	#define NFC_REG_CMD 0x00
	#define NFC_CMD_IDLE (0xc << 14)
	#define NFC_CMD_CLE (0x5 << 14)
	#define NFC_CMD_ALE (0x6 << 14)
	#define NFC_CMD_ADL ((0 << 16) \| (3 << 20))
	#define NFC_CMD_ADH ((1 << 16) \| (3 << 20))
	#define NFC_CMD_AIL ((2 << 16) \| (3 << 20))
	#define NFC_CMD_AIH ((3 << 16) \| (3 << 20))
	#define NFC_CMD_SEED ((8 << 16) \| (3 << 20))
	#define NFC_CMD_M2N ((0 << 17) \| (2 << 20))
	#define NFC_CMD_N2M ((1 << 17) \| (2 << 20))
	#define NFC_CMD_DRD (0x8 << 14)
	#define NFC_CMD_RB BIT(20)
	#define NFC_CMD_SCRAMBLER_ENABLE 1 //BIT(19)
	#define NFC_CMD_SCRAMBLER_DISABLE 0
	#define NFC_CMD_SHORTMODE_DISABLE 0
	#define NFC_CMD_SHORTMODE_ENABLE 1
	#define NFC_CMD_RB_INT BIT(14)

	#define NFC_CMD_GET_SIZE(x) (((x) >> 22) & GENMASK(4, 0))

	#define NFC_REG_CFG 0x04
	#define NFC_REG_DADR 0x08
	#define NFC_REG_IADR 0x0c
	#define NFC_REG_BUF 0x10
	#define NFC_REG_INFO 0x14
	#define NFC_REG_DC 0x18
	#define NFC_REG_ADR 0x1c
	#define NFC_REG_DL 0x20
	#define NFC_REG_DH 0x24
	#define NFC_REG_CADR 0x28
	#define NFC_REG_SADR 0x2c
	#define NFC_REG_PINS 0x30
	#define NFC_REG_VER 0x38

	#define NFC_RB_IRQ_EN BIT(21)

	#define CMDRWGEN(cmd_dir, ran, bch, short_mode, page_size, pages) \
	( \
	(cmd_dir) \| \
	((ran) << 19) \| \
	((bch) << 14) \| \
	((short_mode) << 13) \| \
	(((page_size) & 0x7f) << 6) \| \
	((pages) & 0x3f) \
	)

	#define GENCMDDADDRL(adl, addr) ((adl) \| ((addr) & 0xffff))
	#define GENCMDDADDRH(adh, addr) ((adh) \| (((addr) >> 16) & 0xffff))
	#define GENCMDIADDRL(ail, addr) ((ail) \| ((addr) & 0xffff))
	#define GENCMDIADDRH(aih, addr) ((aih) \| (((addr) >> 16) & 0xffff))

	#define DMA_DIR(dir) ((dir) ? NFC_CMD_N2M : NFC_CMD_M2N)

	#define ECC_CHECK_RETURN_FF (-1)

	#define NAND_CE0 (0xe << 10)
	#define NAND_CE1 (0xd << 10)

	#define DMA_BUSY_TIMEOUT 0x100000
	#define CMD_FIFO_EMPTY_TIMEOUT 1000

	#define MAX_CE_NUM 2
	#define NAND_MAX_DEVICE 4

	/* eMMC clock register, misc control */
	#define CLK_SELECT_NAND BIT(31)

	#define NFC_CLK_CYCLE 6

	/* nand flash controller delay 3 ns */
	#define NFC_DEFAULT_DELAY 3000

	#define ROW_ADDER(page, index) (((page) >> (8 * (index))) & 0xff)
	#define MAX_CYCLE_ADDRS 5
	#define DIRREAD 1
	#define DIRWRITE 0

	#define ECC_PARITY_BCH8_512B 14
	#define ECC_COMPLETE BIT(31)
	#define ECC_ERR_CNT(x) (((x) >> 24) & GENMASK(5, 0))
	#define ECC_ZERO_CNT(x) (((x) >> 16) & GENMASK(5, 0))
	#define ECC_UNCORRECTABLE 0x3f

	#define PER_INFO_BYTE 8

	#define NAND_BLOCK_GOOD 0
	#define NAND_BLOCK_BAD 1
	#define NAND_FACTORY_BAD 2

	/* Max total is 1024 as romboot says so... */
	#define BOOT_TOTAL_PAGES (1024)
	#define NAND_FIPMODE_DISCRETE (1)
	struct meson_nfc_nand_chip {
	struct list_head node;
	struct nand_chip nand;
	unsigned long clk_rate;
	unsigned long level1_divider;
	u32 bus_timing;
	u32 twb;
	u32 tadl;
	u32 tbers_max;
	u32 bch_info;
	u32 bch_mode;
	u8 *data_buf;
	__le64 *info_buf;
	u32 nsels;
	u8 sels[0];
	};

	struct meson_nand_ecc {
	u32 bch;
	u32 strength;
	u32 step_size;
	};

	struct meson_nfc_data {
	const struct nand_ecc_caps *ecc_caps;
	int bl2ex_mode;
	};

	struct meson_nfc_param {
	u32 chip_select;
	u32 rb_select;
	};

	struct nand_rw_cmd {
	u32 cmd0;
	u32 addrs[MAX_CYCLE_ADDRS];
	u32 cmd1;
	};

	struct nand_timing {
	u32 twb;
	u32 tadl;
	u32 tbers_max;
	};

	struct meson_nfc {
	struct nand_controller controller;
	struct clk *clk_gate;
	struct clk *fix_div2_pll;
	struct clk_divider nand_divider;
	struct clk *nand_div_clk;
	unsigned long clk_rate;
	u32 bus_timing;

	struct device *dev;
	void __iomem *reg_base;
	void __iomem *nand_clk_reg;

	struct completion completion;
	struct list_head chips;
	const struct meson_nfc_data *data;
	struct meson_nfc_param param;
	struct nand_timing timing;
	struct meson_rsv_handler_t *rsv;
	union {
	int cmd[32];
	struct nand_rw_cmd rw;
	} cmdfifo;

	dma_addr_t daddr;
	dma_addr_t iaddr;

	unsigned long assigned_cs;
	s8 *block_status;

	struct para_form_dts {
	u32 clk_ctrl_base;
	u32 bl_mode;
	u32 fip_copies;
	u32 fip_size;
	u32 skip_bad_block;
	u32 disa_irq_hand;
	} param_from_dts;

	struct pinctrl *nand_pinctrl;
	struct pinctrl_state *nand_norbstate;
	struct pinctrl_state *nand_idlestate;
	};

	/for info page0 information/
	union sc2_cmdinfo {
	u32 d32;
	struct {
	unsigned cmd:22;
	unsigned page_list:1;
	unsigned new_type:8;
	unsigned reserved:1;
	} b;
	};

	struct _nand_setup_sc2 {
	union sc2_cmdinfo cfg;
	u16 id;
	u16 max;
	};

	union cmdinfo {
	u32 d32;
	struct {
	unsigned cmd:22;
	unsigned large_page:1;
	unsigned no_rb:1;
	unsigned a2:1;
	unsigned reserved25:1;
	unsigned page_list:1;
	unsigned sync_mode:2;
	unsigned size:2;
	unsigned active:1;
	} b;
	};

	struct _nand_setup {
	union cmdinfo cfg;
	u16 id;
	u16 max;
	};

	struct _nand_cmd {
	unsigned char type;
	unsigned char val;
	};

	struct _ext_info {
	u32 read_info;
	u32 new_type;
	u32 pages_per_blk;
	u32 xlc;
	u32 ce_mask;
	u32 boot_num;
	u32 each_boot_pages;
	u32 bbt_occupy_pages;
	u32 bbt_start_block;
	};

	struct _fip_info {
	u16 version;
	u16 mode; /compact or discrete/
	u32 fip_start; /fip_start, pages/
	};

	#define NAND_PAGELIST_CNT 16
	#define NAND_ECC_UNIT_SHORT 384
	/max size 384 bytes/
	struct _nand_page0 {
	struct _nand_setup nand_setup;
	unsigned char page_list[NAND_PAGELIST_CNT];
	struct _nand_cmd retry_usr[32];
	struct _ext_info ext_info;
	struct _fip_info fip_info;
	u32 ddrp_start_page;
	};

	struct _nand_page0_sc2 {
	struct _nand_setup_sc2 nand_setup;
	unsigned char page_list[32];
	struct _nand_cmd retry_usr[32];
	struct _ext_info ext_info;
	struct _fip_info fip_info;
	u32 ddrp_start_page;
	};

	/end info page0 information/
	extern struct mtd_part_parser ofpart_meson_parser;
	extern struct nand_flash_dev aml_nand_flash_ids[];

	#endif /* __AMLMTD_NAND_H_ */