September 2007 - U-Boot

[U-Boot-Users] (no subject)
by gb sudeep 10 Sep '07

10 Sep '07

hi, email gbsudeep(a)gmail.com

1 0

[U-Boot-Users] [PATCH 5/5] OneNAND support
by Kyungmin Park 10 Sep '07

10 Sep '07

[PATCH] OneNAND support Signed-off-by: Kyungmin Park <kyungmin.park(a)samsung.com> --- diff --git a/include/config_cmd_all.h b/include/config_cmd_all.h index 3d91e99..f8eca87 100644 --- a/include/config_cmd_all.h +++ b/include/config_cmd_all.h @@ -59,6 +59,7 @@ #define CONFIG_CMD_NAND /* NAND support */ #define CONFIG_CMD_NET /* bootp, tftpboot, rarpboot */ #define CONFIG_CMD_NFS /* NFS support */ +#define CONFIG_CMD_ONENAND /* OneNAND support */ #define CONFIG_CMD_PCI /* pciinfo */ #define CONFIG_CMD_PCMCIA /* PCMCIA support */ #define CONFIG_CMD_PING /* ping support */ diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h new file mode 100644 index 0000000..f194cf1 --- /dev/null +++ b/include/linux/mtd/bbm.h @@ -0,0 +1,127 @@ +/* + * linux/include/linux/mtd/bbm.h + * + * NAND family Bad Block Management (BBM) header file + * - Bad Block Table (BBT) implementation + * + * Copyright (c) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * Copyright (c) 2000-2005 + * Thomas Gleixner <tglx(a)linuxtronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __LINUX_MTD_BBM_H +#define __LINUX_MTD_BBM_H + +/* The maximum number of NAND chips in an array */ +#ifndef NAND_MAX_CHIPS +#define NAND_MAX_CHIPS 8 +#endif + +/** + * struct nand_bbt_descr - bad block table descriptor + * @param options options for this descriptor + * @param pages the page(s) where we find the bbt, used with + * option BBT_ABSPAGE when bbt is searched, + * then we store the found bbts pages here. + * Its an array and supports up to 8 chips now + * @param offs offset of the pattern in the oob area of the page + * @param veroffs offset of the bbt version counter in the oob are of the page + * @param version version read from the bbt page during scan + * @param len length of the pattern, if 0 no pattern check is performed + * @param maxblocks maximum number of blocks to search for a bbt. This number of + * blocks is reserved at the end of the device + * where the tables are written. + * @param reserved_block_code if non-0, this pattern denotes a reserved + * (rather than bad) block in the stored bbt + * @param pattern pattern to identify bad block table or factory marked + * good / bad blocks, can be NULL, if len = 0 + * + * Descriptor for the bad block table marker and the descriptor for the + * pattern which identifies good and bad blocks. The assumption is made + * that the pattern and the version count are always located in the oob area + * of the first block. + */ +struct nand_bbt_descr { + int options; + int pages[NAND_MAX_CHIPS]; + int offs; + int veroffs; + uint8_t version[NAND_MAX_CHIPS]; + int len; + int maxblocks; + int reserved_block_code; + uint8_t *pattern; +}; + +/* Options for the bad block table descriptors */ + +/* The number of bits used per block in the bbt on the device */ +#define NAND_BBT_NRBITS_MSK 0x0000000F +#define NAND_BBT_1BIT 0x00000001 +#define NAND_BBT_2BIT 0x00000002 +#define NAND_BBT_4BIT 0x00000004 +#define NAND_BBT_8BIT 0x00000008 +/* The bad block table is in the last good block of the device */ +#define NAND_BBT_LASTBLOCK 0x00000010 +/* The bbt is at the given page, else we must scan for the bbt */ +#define NAND_BBT_ABSPAGE 0x00000020 +/* The bbt is at the given page, else we must scan for the bbt */ +#define NAND_BBT_SEARCH 0x00000040 +/* bbt is stored per chip on multichip devices */ +#define NAND_BBT_PERCHIP 0x00000080 +/* bbt has a version counter at offset veroffs */ +#define NAND_BBT_VERSION 0x00000100 +/* Create a bbt if none axists */ +#define NAND_BBT_CREATE 0x00000200 +/* Search good / bad pattern through all pages of a block */ +#define NAND_BBT_SCANALLPAGES 0x00000400 +/* Scan block empty during good / bad block scan */ +#define NAND_BBT_SCANEMPTY 0x00000800 +/* Write bbt if neccecary */ +#define NAND_BBT_WRITE 0x00001000 +/* Read and write back block contents when writing bbt */ +#define NAND_BBT_SAVECONTENT 0x00002000 +/* Search good / bad pattern on the first and the second page */ +#define NAND_BBT_SCAN2NDPAGE 0x00004000 + +/* The maximum number of blocks to scan for a bbt */ +#define NAND_BBT_SCAN_MAXBLOCKS 4 + +/* + * Constants for oob configuration + */ +#define ONENAND_BADBLOCK_POS 0 + +/** + * struct bbt_info - [GENERIC] Bad Block Table data structure + * @param bbt_erase_shift [INTERN] number of address bits in a bbt entry + * @param badblockpos [INTERN] position of the bad block marker in the oob area + * @param bbt [INTERN] bad block table pointer + * @param badblock_pattern [REPLACEABLE] bad block scan pattern used for initial bad block scan + * @param priv [OPTIONAL] pointer to private bbm date + */ +struct bbm_info { + int bbt_erase_shift; + int badblockpos; + int options; + + uint8_t *bbt; + + int (*isbad_bbt) (struct mtd_info * mtd, loff_t ofs, int allowbbt); + + /* TODO Add more NAND specific fileds */ + struct nand_bbt_descr *badblock_pattern; + + void *priv; +}; + +/* OneNAND BBT interface */ +extern int onenand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd); +extern int onenand_default_bbt (struct mtd_info *mtd); + +#endif /* __LINUX_MTD_BBM_H */ diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h new file mode 100644 index 0000000..4b0c2df --- /dev/null +++ b/include/linux/mtd/onenand.h @@ -0,0 +1,143 @@ +/* + * linux/include/linux/mtd/onenand.h + * + * Copyright (C) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __LINUX_MTD_ONENAND_H +#define __LINUX_MTD_ONENAND_H + +#include <linux/mtd/onenand_regs.h> + +/* Note: The header order is impoertant */ +#include <onenand_uboot.h> + +#include <linux/mtd/bbm.h> + +#define MAX_BUFFERRAM 2 +#define MAX_ONENAND_PAGESIZE (2048 + 64) + +/* Scan and identify a OneNAND device */ +extern int onenand_scan (struct mtd_info *mtd, int max_chips); +/* Free resources held by the OneNAND device */ +extern void onenand_release (struct mtd_info *mtd); + +/** + * onenand_state_t - chip states + * Enumeration for OneNAND flash chip state + */ +typedef enum { + FL_READY, + FL_READING, + FL_WRITING, + FL_ERASING, + FL_SYNCING, + FL_UNLOCKING, + FL_LOCKING, +} onenand_state_t; + +/** + * struct onenand_bufferram - OneNAND BufferRAM Data + * @param block block address in BufferRAM + * @param page page address in BufferRAM + * @param valid valid flag + */ +struct onenand_bufferram { + int block; + int page; + int valid; +}; + +/** + * struct onenand_chip - OneNAND Private Flash Chip Data + * @param base [BOARDSPECIFIC] address to access OneNAND + * @param chipsize [INTERN] the size of one chip for multichip arrays + * @param device_id [INTERN] device ID + * @param verstion_id [INTERN] version ID + * @param options [BOARDSPECIFIC] various chip options. They can partly be set to inform onenand_scan about + * @param erase_shift [INTERN] number of address bits in a block + * @param page_shift [INTERN] number of address bits in a page + * @param ppb_shift [INTERN] number of address bits in a pages per block + * @param page_mask [INTERN] a page per block mask + * @param bufferam_index [INTERN] BufferRAM index + * @param bufferam [INTERN] BufferRAM info + * @param readw [REPLACEABLE] hardware specific function for read short + * @param writew [REPLACEABLE] hardware specific function for write short + * @param command [REPLACEABLE] hardware specific function for writing commands to the chip + * @param wait [REPLACEABLE] hardware specific function for wait on ready + * @param read_bufferram [REPLACEABLE] hardware specific function for BufferRAM Area + * @param write_bufferram [REPLACEABLE] hardware specific function for BufferRAM Area + * @param chip_lock [INTERN] spinlock used to protect access to this structure and the chip + * @param wq [INTERN] wait queue to sleep on if a OneNAND operation is in progress + * @param state [INTERN] the current state of the OneNAND device + * @param autooob [REPLACEABLE] the default (auto)placement scheme + * @param priv [OPTIONAL] pointer to private chip date + */ +struct onenand_chip { + void __iomem *base; + unsigned int chipsize; + unsigned int device_id; + unsigned int options; + + unsigned int erase_shift; + unsigned int page_shift; + unsigned int ppb_shift; /* Pages per block shift */ + unsigned int page_mask; + + unsigned int bufferram_index; + struct onenand_bufferram bufferram[MAX_BUFFERRAM]; + + int (*command) (struct mtd_info * mtd, int cmd, loff_t address, + size_t len); + int (*wait) (struct mtd_info * mtd, int state); + int (*read_bufferram) (struct mtd_info * mtd, int area, + unsigned char *buffer, int offset, size_t count); + int (*write_bufferram) (struct mtd_info * mtd, int area, + const unsigned char *buffer, int offset, + size_t count); + unsigned short (*read_word) (void __iomem * addr); + void (*write_word) (unsigned short value, void __iomem * addr); + void (*mmcontrol) (struct mtd_info * mtd, int sync_read); + + spinlock_t chip_lock; + wait_queue_head_t wq; + onenand_state_t state; + + struct nand_oobinfo *autooob; + + void *bbm; + + void *priv; +}; + +#define ONENAND_CURRENT_BUFFERRAM(this) (this->bufferram_index) +#define ONENAND_NEXT_BUFFERRAM(this) (this->bufferram_index ^ 1) +#define ONENAND_SET_NEXT_BUFFERRAM(this) (this->bufferram_index ^= 1) + +/* + * Options bits + */ +#define ONENAND_CONT_LOCK (0x0001) + +/* + * OneNAND Flash Manufacturer ID Codes + */ +#define ONENAND_MFR_SAMSUNG 0xec +#define ONENAND_MFR_UNKNOWN 0x00 + +/** + * struct nand_manufacturers - NAND Flash Manufacturer ID Structure + * @param name: Manufacturer name + * @param id: manufacturer ID code of device. +*/ +struct onenand_manufacturers { + int id; + char *name; +}; + +#endif /* __LINUX_MTD_ONENAND_H */ diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h new file mode 100644 index 0000000..c8a9f3e --- /dev/null +++ b/include/linux/mtd/onenand_regs.h @@ -0,0 +1,181 @@ +/* + * linux/include/linux/mtd/onenand_regs.h + * + * OneNAND Register header file + * + * Copyright (C) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ONENAND_REG_H +#define __ONENAND_REG_H + +/* Memory Address Map Translation (Word order) */ +#define ONENAND_MEMORY_MAP(x) ((x) << 1) + +/* + * External BufferRAM area + */ +#define ONENAND_BOOTRAM ONENAND_MEMORY_MAP(0x0000) +#define ONENAND_DATARAM ONENAND_MEMORY_MAP(0x0200) +#define ONENAND_SPARERAM ONENAND_MEMORY_MAP(0x8010) + +/* + * OneNAND Registers + */ +#define ONENAND_REG_MANUFACTURER_ID ONENAND_MEMORY_MAP(0xF000) +#define ONENAND_REG_DEVICE_ID ONENAND_MEMORY_MAP(0xF001) +#define ONENAND_REG_VERSION_ID ONENAND_MEMORY_MAP(0xF002) +#define ONENAND_REG_DATA_BUFFER_SIZE ONENAND_MEMORY_MAP(0xF003) +#define ONENAND_REG_BOOT_BUFFER_SIZE ONENAND_MEMORY_MAP(0xF004) +#define ONENAND_REG_NUM_BUFFERS ONENAND_MEMORY_MAP(0xF005) +#define ONENAND_REG_TECHNOLOGY ONENAND_MEMORY_MAP(0xF006) + +#define ONENAND_REG_START_ADDRESS1 ONENAND_MEMORY_MAP(0xF100) +#define ONENAND_REG_START_ADDRESS2 ONENAND_MEMORY_MAP(0xF101) +#define ONENAND_REG_START_ADDRESS3 ONENAND_MEMORY_MAP(0xF102) +#define ONENAND_REG_START_ADDRESS4 ONENAND_MEMORY_MAP(0xF103) +#define ONENAND_REG_START_ADDRESS5 ONENAND_MEMORY_MAP(0xF104) +#define ONENAND_REG_START_ADDRESS6 ONENAND_MEMORY_MAP(0xF105) +#define ONENAND_REG_START_ADDRESS7 ONENAND_MEMORY_MAP(0xF106) +#define ONENAND_REG_START_ADDRESS8 ONENAND_MEMORY_MAP(0xF107) + +#define ONENAND_REG_START_BUFFER ONENAND_MEMORY_MAP(0xF200) +#define ONENAND_REG_COMMAND ONENAND_MEMORY_MAP(0xF220) +#define ONENAND_REG_SYS_CFG1 ONENAND_MEMORY_MAP(0xF221) +#define ONENAND_REG_SYS_CFG2 ONENAND_MEMORY_MAP(0xF222) +#define ONENAND_REG_CTRL_STATUS ONENAND_MEMORY_MAP(0xF240) +#define ONENAND_REG_INTERRUPT ONENAND_MEMORY_MAP(0xF241) +#define ONENAND_REG_START_BLOCK_ADDRESS ONENAND_MEMORY_MAP(0xF24C) +#define ONENAND_REG_END_BLOCK_ADDRESS ONENAND_MEMORY_MAP(0xF24D) +#define ONENAND_REG_WP_STATUS ONENAND_MEMORY_MAP(0xF24E) + +#define ONENAND_REG_ECC_STATUS ONENAND_MEMORY_MAP(0xFF00) +#define ONENAND_REG_ECC_M0 ONENAND_MEMORY_MAP(0xFF01) +#define ONENAND_REG_ECC_S0 ONENAND_MEMORY_MAP(0xFF02) +#define ONENAND_REG_ECC_M1 ONENAND_MEMORY_MAP(0xFF03) +#define ONENAND_REG_ECC_S1 ONENAND_MEMORY_MAP(0xFF04) +#define ONENAND_REG_ECC_M2 ONENAND_MEMORY_MAP(0xFF05) +#define ONENAND_REG_ECC_S2 ONENAND_MEMORY_MAP(0xFF06) +#define ONENAND_REG_ECC_M3 ONENAND_MEMORY_MAP(0xFF07) +#define ONENAND_REG_ECC_S3 ONENAND_MEMORY_MAP(0xFF08) + +/* + * Device ID Register F001h (R) + */ +#define ONENAND_DEVICE_DENSITY_SHIFT (4) +#define ONENAND_DEVICE_IS_DDP (1 << 3) +#define ONENAND_DEVICE_IS_DEMUX (1 << 2) +#define ONENAND_DEVICE_VCC_MASK (0x3) + +#define ONENAND_DEVICE_DENSITY_512Mb (0x002) + +/* + * Version ID Register F002h (R) + */ +#define ONENAND_VERSION_PROCESS_SHIFT (8) + +/* + * Start Address 1 F100h (R/W) + */ +#define ONENAND_DDP_SHIFT (15) + +/* + * Start Address 8 F107h (R/W) + */ +#define ONENAND_FPA_MASK (0x3f) +#define ONENAND_FPA_SHIFT (2) +#define ONENAND_FSA_MASK (0x03) + +/* + * Start Buffer Register F200h (R/W) + */ +#define ONENAND_BSA_MASK (0x03) +#define ONENAND_BSA_SHIFT (8) +#define ONENAND_BSA_BOOTRAM (0 << 2) +#define ONENAND_BSA_DATARAM0 (2 << 2) +#define ONENAND_BSA_DATARAM1 (3 << 2) +#define ONENAND_BSC_MASK (0x03) + +/* + * Command Register F220h (R/W) + */ +#define ONENAND_CMD_READ (0x00) +#define ONENAND_CMD_READOOB (0x13) +#define ONENAND_CMD_PROG (0x80) +#define ONENAND_CMD_PROGOOB (0x1A) +#define ONENAND_CMD_UNLOCK (0x23) +#define ONENAND_CMD_LOCK (0x2A) +#define ONENAND_CMD_LOCK_TIGHT (0x2C) +#define ONENAND_CMD_ERASE (0x94) +#define ONENAND_CMD_RESET (0xF0) +#define ONENAND_CMD_READID (0x90) + +/* NOTE: Those are not *REAL* commands */ +#define ONENAND_CMD_BUFFERRAM (0x1978) + +/* + * System Configuration 1 Register F221h (R, R/W) + */ +#define ONENAND_SYS_CFG1_SYNC_READ (1 << 15) +#define ONENAND_SYS_CFG1_BRL_7 (7 << 12) +#define ONENAND_SYS_CFG1_BRL_6 (6 << 12) +#define ONENAND_SYS_CFG1_BRL_5 (5 << 12) +#define ONENAND_SYS_CFG1_BRL_4 (4 << 12) +#define ONENAND_SYS_CFG1_BRL_3 (3 << 12) +#define ONENAND_SYS_CFG1_BRL_10 (2 << 12) +#define ONENAND_SYS_CFG1_BRL_9 (1 << 12) +#define ONENAND_SYS_CFG1_BRL_8 (0 << 12) +#define ONENAND_SYS_CFG1_BRL_SHIFT (12) +#define ONENAND_SYS_CFG1_BL_32 (4 << 9) +#define ONENAND_SYS_CFG1_BL_16 (3 << 9) +#define ONENAND_SYS_CFG1_BL_8 (2 << 9) +#define ONENAND_SYS_CFG1_BL_4 (1 << 9) +#define ONENAND_SYS_CFG1_BL_CONT (0 << 9) +#define ONENAND_SYS_CFG1_BL_SHIFT (9) +#define ONENAND_SYS_CFG1_NO_ECC (1 << 8) +#define ONENAND_SYS_CFG1_RDY (1 << 7) +#define ONENAND_SYS_CFG1_INT (1 << 6) +#define ONENAND_SYS_CFG1_IOBE (1 << 5) +#define ONENAND_SYS_CFG1_RDY_CONF (1 << 4) + +/* + * Controller Status Register F240h (R) + */ +#define ONENAND_CTRL_ONGO (1 << 15) +#define ONENAND_CTRL_LOCK (1 << 14) +#define ONENAND_CTRL_LOAD (1 << 13) +#define ONENAND_CTRL_PROGRAM (1 << 12) +#define ONENAND_CTRL_ERASE (1 << 11) +#define ONENAND_CTRL_ERROR (1 << 10) +#define ONENAND_CTRL_RSTB (1 << 7) + +/* + * Interrupt Status Register F241h (R) + */ +#define ONENAND_INT_MASTER (1 << 15) +#define ONENAND_INT_READ (1 << 7) +#define ONENAND_INT_WRITE (1 << 6) +#define ONENAND_INT_ERASE (1 << 5) +#define ONENAND_INT_RESET (1 << 4) +#define ONENAND_INT_CLEAR (0 << 0) + +/* + * NAND Flash Write Protection Status Register F24Eh (R) + */ +#define ONENAND_WP_US (1 << 2) +#define ONENAND_WP_LS (1 << 1) +#define ONENAND_WP_LTS (1 << 0) + +/* + * ECC Status Reigser FF00h (R) + */ +#define ONENAND_ECC_1BIT (1 << 0) +#define ONENAND_ECC_2BIT (1 << 1) +#define ONENAND_ECC_2BIT_ALL (0xAAAA) + +#endif /* __ONENAND_REG_H */ diff --git a/include/onenand_uboot.h b/include/onenand_uboot.h new file mode 100644 index 0000000..1d829a4 --- /dev/null +++ b/include/onenand_uboot.h @@ -0,0 +1,114 @@ +/* + * Header file for OneNAND support for U-Boot + * + * Adaptation from kernel to U-Boot + * + * Copyright (C) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __UBOOT_ONENAND_H +#define __UBOOT_ONENAND_H + +#ifndef __iomem +#define __iomem +#endif + +#define __mem_pci(x) (x) + +#define ONENAND_DEBUG +#undef ONENAND_DEBUG + +#define DEBUG_LEVEL 2 + +#define MTD_DEBUG_LEVEL0 0 +#define MTD_DEBUG_LEVEL1 1 +#define MTD_DEBUG_LEVEL2 2 +#define MTD_DEBUG_LEVEL3 3 + +#ifdef ONENAND_DEBUG +#define DEBUG(level, args...) \ +do { \ + if (level <= DEBUG_LEVEL) { \ + printf(args); \ + } \ +} while (0) +#else +#define DEBUG(level, args...) do { } while (0) +#endif + +enum { + EAGAIN, + EIO, + EBADMSG, + ENXIO, + EINVAL, + EPERM, + ENOMEM, +}; + +#define KERN_INFO +#define KERN_ERR +#define KERN_WARNING +#define KERN_DEBUG + +#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) + +#define unlikely(x) (x) + +struct mtd_info { + int size; + int oobblock; + int oobsize; + int erasesize; + + void *priv; +}; + +#define MTD_ERASE_PENDING 0x01 +#define MTD_ERASING 0x02 +#define MTD_ERASE_SUSPEND 0x04 +#define MTD_ERASE_DONE 0x08 +#define MTD_ERASE_FAILED 0x10 + +struct erase_info { + struct mtd_info *mtd; + u_int32_t addr; + u_int32_t len; + u_int32_t fail_addr; + u_char state; +}; + +struct nand_oobinfo { +}; + +struct kvec { + void *iov_base; + size_t iov_len; +}; + +typedef int spinlock_t; +typedef int wait_queue_head_t; + +#define printk(args...) printf(args) + +#define mtd_erase_callback(x) do { } while (0) + +/* Functions */ +extern int onenand_read (struct mtd_info *mtd, loff_t from, size_t len, + size_t * retlen, u_char * buf); +extern int onenand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, + size_t * retlen, u_char * buf); +extern int onenand_write (struct mtd_info *mtd, loff_t from, size_t len, + size_t * retlen, const u_char * buf); +extern int onenand_erase (struct mtd_info *mtd, struct erase_info *instr); + +extern int onenand_unlock (struct mtd_info *mtd, loff_t ofs, size_t len); + +extern void onenand_print_device_info (int device, int verbose); + +#endif /* __UBOOT_ONENAND_H */ diff --git a/lib_arm/board.c b/lib_arm/board.c index d37e5da..b1c89ea 100644 --- a/lib_arm/board.c +++ b/lib_arm/board.c @@ -58,6 +58,10 @@ DECLARE_GLOBAL_DATA_PTR; void nand_init (void); #endif +#if defined(CONFIG_CMD_ONENAND) +void onenand_init(void); +#endif + ulong monitor_flash_len; #ifdef CONFIG_HAS_DATAFLASH @@ -301,6 +305,10 @@ void start_armboot (void) nand_init(); /* go init the NAND */ #endif +#if defined(CONFIG_CMD_ONENAND) + onenand_init(); +#endif + #ifdef CONFIG_HAS_DATAFLASH AT91F_DataflashInit(); dataflash_print_info();

2 5

[U-Boot-Users] [PATCH 4/5] OneNAND support
by Kyungmin Park 10 Sep '07

10 Sep '07

[PATCH] OneNAND support Signed-off-by: Kyungmin Park <kyungmin.park(a)samsung.com> --- diff --git a/drivers/onenand/onenand_bbt.c b/drivers/onenand/onenand_bbt.c new file mode 100644 index 0000000..6a0eb57 --- /dev/null +++ b/drivers/onenand/onenand_bbt.c @@ -0,0 +1,260 @@ +/* + * linux/drivers/mtd/onenand/onenand_bbt.c + * + * Bad Block Table support for the OneNAND driver + * + * Copyright(c) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * TODO: + * Split BBT core and chip specific BBT. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <common.h> + +#ifdef CONFIG_CMD_ONENAND + +#include <linux/mtd/onenand.h> +#include <malloc.h> + +/** + * check_short_pattern - [GENERIC] check if a pattern is in the buffer + * @param buf the buffer to search + * @param len the length of buffer to search + * @param paglen the pagelength + * @param td search pattern descriptor + * + * Check for a pattern at the given place. Used to search bad block + * tables and good / bad block identifiers. Same as check_pattern, but + * no optional empty check and the pattern is expected to start + * at offset 0. + */ +static int check_short_pattern(uint8_t * buf, int len, int paglen, + struct nand_bbt_descr *td) +{ + int i; + uint8_t *p = buf; + + /* Compare the pattern */ + for (i = 0; i < td->len; i++) { + if (p[i] != td->pattern[i]) + return -1; + } + return 0; +} + +/** + * create_bbt - [GENERIC] Create a bad block table by scanning the device + * @param mtd MTD device structure + * @param buf temporary buffer + * @param bd descriptor for the good/bad block search pattern + * @param chip create the table for a specific chip, -1 read all chips. + * Applies only if NAND_BBT_PERCHIP option is set + * + * Create a bad block table by scanning the device + * for the given good/bad block identify pattern + */ +static int create_bbt(struct mtd_info *mtd, uint8_t * buf, + struct nand_bbt_descr *bd, int chip) +{ + struct onenand_chip *this = mtd->priv; + struct bbm_info *bbm = this->bbm; + int i, j, numblocks, len, scanlen; + int startblock; + loff_t from; + size_t readlen, ooblen; + + printk(KERN_INFO "Scanning device for bad blocks\n"); + + len = 1; + + /* We need only read few bytes from the OOB area */ + scanlen = ooblen = 0; + readlen = bd->len; + + /* chip == -1 case only */ + /* Note that numblocks is 2 * (real numblocks) here; + * see i += 2 below as it makses shifting and masking less painful + */ + numblocks = mtd->size >> (bbm->bbt_erase_shift - 1); + startblock = 0; + from = 0; + + for (i = startblock; i < numblocks;) { + int ret; + + for (j = 0; j < len; j++) { + size_t retlen; + + /* No need to read pages fully, + * just read required OOB bytes */ + ret = + onenand_read_oob(mtd, + from + j * mtd->oobblock + + bd->offs, readlen, &retlen, + &buf[0]); + + if (ret) + return ret; + + if (check_short_pattern + (&buf[j * scanlen], scanlen, mtd->oobblock, bd)) { + bbm->bbt[i >> 3] |= 0x03 << (i & 0x6); + printk(KERN_WARNING + "Bad eraseblock %d at 0x%08x\n", i >> 1, + (unsigned int)from); + break; + } + } + i += 2; + from += (1 << bbm->bbt_erase_shift); + } + + return 0; +} + +/** + * onenand_memory_bbt - [GENERIC] create a memory based bad block table + * @param mtd MTD device structure + * @param bd descriptor for the good/bad block search pattern + * + * The function creates a memory based bbt by scanning the device + * for manufacturer / software marked good / bad blocks + */ +static inline int onenand_memory_bbt(struct mtd_info *mtd, + struct nand_bbt_descr *bd) +{ + unsigned char data_buf[MAX_ONENAND_PAGESIZE]; + + bd->options &= ~NAND_BBT_SCANEMPTY; + return create_bbt(mtd, data_buf, bd, -1); +} + +/** + * onenand_isbad_bbt - [OneNAND Interface] Check if a block is bad + * @param mtd MTD device structure + * @param offs offset in the device + * @param allowbbt allow access to bad block table region + */ +static int onenand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt) +{ + struct onenand_chip *this = mtd->priv; + struct bbm_info *bbm = this->bbm; + int block; + uint8_t res; + + /* Get block number * 2 */ + block = (int)(offs >> (bbm->bbt_erase_shift - 1)); + res = (bbm->bbt[block >> 3] >> (block & 0x06)) & 0x03; + + DEBUG(MTD_DEBUG_LEVEL2, + "onenand_isbad_bbt: bbt info for offs 0x%08x: (block %d) 0x%02x\n", + (unsigned int)offs, block >> 1, res); + + switch ((int)res) { + case 0x00: + return 0; + case 0x01: + return 1; + case 0x02: + return allowbbt ? 0 : 1; + } + + return 1; +} + +/** + * onenand_scan_bbt - [OneNAND Interface] scan, find, read and maybe create bad block table(s) + * @param mtd MTD device structure + * @param bd descriptor for the good/bad block search pattern + * + * The function checks, if a bad block table(s) is/are already + * available. If not it scans the device for manufacturer + * marked good / bad blocks and writes the bad block table(s) to + * the selected place. + * + * The bad block table memory is allocated here. It must be freed + * by calling the onenand_free_bbt function. + * + */ +int onenand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) +{ + struct onenand_chip *this = mtd->priv; + struct bbm_info *bbm = this->bbm; + int len, ret = 0; + + len = mtd->size >> (this->erase_shift + 2); + /* Allocate memory (2bit per block) */ + bbm->bbt = malloc(len); + if (!bbm->bbt) { + printk(KERN_ERR "onenand_scan_bbt: Out of memory\n"); + return -ENOMEM; + } + /* Clear the memory bad block table */ + memset(bbm->bbt, 0x00, len); + + /* Set the bad block position */ + bbm->badblockpos = ONENAND_BADBLOCK_POS; + + /* Set erase shift */ + bbm->bbt_erase_shift = this->erase_shift; + + if (!bbm->isbad_bbt) + bbm->isbad_bbt = onenand_isbad_bbt; + + /* Scan the device to build a memory based bad block table */ + if ((ret = onenand_memory_bbt(mtd, bd))) { + printk(KERN_ERR + "onenand_scan_bbt: Can't scan flash and build the RAM-based BBT\n"); + free(bbm->bbt); + bbm->bbt = NULL; + } + + return ret; +} + +/* + * Define some generic bad / good block scan pattern which are used + * while scanning a device for factory marked good / bad blocks. + */ +static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; + +static struct nand_bbt_descr largepage_memorybased = { + .options = 0, + .offs = 0, + .len = 2, + .pattern = scan_ff_pattern, +}; + +/** + * onenand_default_bbt - [OneNAND Interface] Select a default bad block table for the device + * @param mtd MTD device structure + * + * This function selects the default bad block table + * support for the device and calls the onenand_scan_bbt function + */ +int onenand_default_bbt(struct mtd_info *mtd) +{ + struct onenand_chip *this = mtd->priv; + struct bbm_info *bbm; + + this->bbm = malloc(sizeof(struct bbm_info)); + if (!this->bbm) + return -ENOMEM; + + bbm = this->bbm; + + memset(bbm, 0, sizeof(struct bbm_info)); + + /* 1KB page has same configuration as 2KB page */ + if (!bbm->badblock_pattern) + bbm->badblock_pattern = &largepage_memorybased; + + return onenand_scan_bbt(mtd, bbm->badblock_pattern); +} + +#endif /* CFG_CMD_ONENAND */

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[U-Boot-Users] [PATCH] Allocate CPU Architecture Code for STMicroelectronics' ST200.
by Sean MCGOOGAN 10 Sep '07

10 Sep '07

Allocate CPU Architecture Code for STMicroelectronics' ST200. Signed-off-by: Sean McGoogan <Sean.McGoogan(a)st.com> --------------------------------------------------- --- u-boot-2007-09-10.git/include/image.h 2007-09-10 12:18:03.000000000 +0100 +++ work/include/image.h 2007-09-10 16:49:17.000000000 +0100 @@ -77,6 +77,7 @@ #define IH_CPU_NIOS2 15 /* Nios-II */ #define IH_CPU_BLACKFIN 16 /* Blackfin */ #define IH_CPU_AVR32 17 /* AVR32 */ +#define IH_CPU_ST200 18 /* STMicroelectronics ST200 */ /* * Image Types ------------------------------------------------------------------------ | Sean McGoogan, | E-mail: Sean.McGoogan(a)st.com | | STMicroelectronics Ltd., | | | 1000 Aztec West, | Direct: +44 (0) 1454 462601 | | Almondsbury, | Main: +44 (0) 1454 616616 | | Bristol, BS32 4SQ, U.K. | Fax: +44 (0) 1454 462305 | ------------------------------------------------------------------------

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[U-Boot-Users] Typo in tsec.c
by urwithsughosh＠gmail.com 10 Sep '07

10 Sep '07

Hello, I guess the mii_parse_lxt971_sr2 function in the tsec.c file has a typo in the switch-case. The break is put after the default case and not after the case before that. I'm not sure if this requires a patch. -- sughosh

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[U-Boot-Users] port u-boot to my custom MPC7410+GT64260 board
by lei zhang 10 Sep '07

10 Sep '07

I am so sorry for my former mess email submission. I am new to mail list . Now I am porting u-boot to my customized board with MPC7410 and GT64260.Andits memory map is as follows: SCS0 00000000-0x1fffffff PCI_0 I/O PCI_0 M0 PCI_0 M1 PCI_0 M2 PCI_0 M3 PCI_1 I/O PCI_

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Re: [U-Boot-Users] Intel Flash CFI initialisation failure
by Scott Mann 10 Sep '07

10 Sep '07

I just ran into this problem also and posted to the list (but got no responses). After a couple days of sorting through the cfi_flash.c, I noticed that the CFG_FLASH_BANKS_LIST seemed to be the pertinent #define. You need to set this to an address that is beyond the region of flash in which you have stored your u-boot and environment variables. Otherwise, the first thing that the CFI code does is erase it! Take the following example: #define CFG_FLASH_PROTECTION 1 /* Real (hardware) sectors protection */ #define CFG_FLASH_BASE 0xFE000000 #define CFG_FLASH_CFI #define CFG_FLASH_CFI_DRIVER #define CFG_MAX_FLASH_BANKS 1 /* max num of flash banks */ #define CFG_MAX_FLASH_SECT 32 /* max num of sects on one chip */ #define CFG_MONITOR_LEN (256 * 1024) /* Reserve 256 kB for Monitor */ #define CFG_ENV_IS_IN_FLASH #ifdef CFG_ENV_IS_IN_FLASH #define CFG_ENV_SECT_SIZE (64 * 1024) /* Reserve 64 kB for env */ #define CFG_ENV_ADDR (CFG_MONITOR_BASE + CFG_MONITOR_LEN) #define CFG_PROTECTED_SIZE (CFG_MONITOR_LEN + CFG_ENV_SECT_SIZE) #define CFG_FLASH_BANKS_LIST { (CFG_FLASH_BASE + CFG_PROTECTED_SIZE) } #endif /* CFG_ENV_IS_IN_FLASH */ What I've done is added CFG_PROTECTED_SIZE as just an intermediate parameter (it will probably go away). It represents the space reserved for U-Boot (256K) + the space reserved for ENV (64K). Just use this as an offset to the CFG_FLASH_BASE and assign that to CFG_FLASH_BANKS_LIST (and it is only that element since you only have one flash bank). I'm not sure whether you want CFG_FLASH_PROTECTION or not in your environment (I'm pretty sure it doesn't have an effect on the problem you've encountered). Hope this helps. If anyone sees a flaw in this approach, please let me know! Scott ----- Original Message ---- From: Miroslaw Dach <miroslaw.dach(a)psi.ch> To: u-boot-users(a)lists.sourceforge.net Sent: Friday, September 7, 2007 8:43:38 AM Subject: [U-Boot-Users] Intel Flash CFI initialisation failure Dear All, I am having the problem with Intel Flash TE28F640 J3C120 on my avnet evaluation board (xilinx based with Virtex-4). I have compiled successfully u-boot-1.2.0 and it run well without FLASH support. Eventually I want to store u-boot in Flash but when I compile u-boot with Flash support the u-boot fails during Flash initialization. My Flash memory is: type: TE28F640 J3C120 (http://www.datasheets.org.uk/datasheet.php?article=3266188) vendor: Intel spec: NOR FLASH 64 Blocks 64 Mbits x8/x16 To support Flash memory I have configured u-boot with the following settings: #define CFG_FLASH_BASE 0xFF800000 #define CFG_MAX_FLASH_BANKS 1 #define CFG_MAX_FLASH_SECT 64 #define CFG_FLASH_CFI 1 #define CFG_FLASH_CFI_DRIVER 1 The u-boot was compiled successfully but when I booted it I have got the error messages when it came to the Flash initialization: U-Boot 1.2.0 (Sep 6 2007 - 17:56:34) ### No HW ID - assuming ML403 DRAM: 32 MB Top of RAM usable for U-Boot at: 02000000 Reserving 138k for U-Boot at: 01fdd000 Reserving 129k for malloc() at: 01fbcc00 Reserving 120 Bytes for Board Info at: 01fbcb88 Reserving 48 Bytes for Global Data at: 01fbcb58 Stack Pointer at: 01fbcb38 New Stack Pointer is: 01fbcb38 Now running in RAM - U-Boot at: 01fdd000 FLASH: flash detect cfi fwc addr ff800000 cmd 0 0 8bit x 8 bit fwc addr ff800055 cmd 98 98 8bit x 8 bit is= cmd 51(Q) addr ff800010 is= 0 51 fwc addr ff800555 cmd 98 98 8bit x 8 bit is= cmd 51(Q) addr ff800010 is= 0 51 fwc addr ff800000 cmd 0 0000 16bit x 8 bit fwc addr ff8000aa cmd 98 9898 16bit x 8 bit is= cmd 51(Q) addr ff800020 is= 0051 5151 fwc addr ff800aaa cmd 98 9898 16bit x 8 bit is= cmd 51(Q) addr ff800020 is= 0051 5151 fwc addr ff800000 cmd 0 0000 16bit x 16 bit fwc addr ff8000aa cmd 98 0098 16bit x 16 bit is= cmd 51(Q) addr ff800020 is= 0051 0051 is= cmd 52(R) addr ff800022 is= 0052 0052 is= cmd 59(Y) addr ff800024 is= 0059 0059 ushort addr is at ff800050 info->portwidth = 2 addr[0] = 0x0 addr[1] = 0x2 addr[2] = 0x0 addr[3] = 0x0 retval = 0x2 device interface is 2 found port 2 chip 2 port 16 bits chip 16 bits ushort addr is at ff800026 info->portwidth = 2 addr[0] = 0x0 addr[1] = 0x1 addr[2] = 0x0 addr[3] = 0x0 retval = 0x1 fwc addr ff800000 cmd ff 00ff 16bit x 16 bit fwc addr ff800000 cmd 90 0090 16bit x 16 bit fwc addr ff800000 cmd ff 00ff 16bit x 16 bit fwc addr ff8000aa cmd 98 0098 16bit x 16 bit ushort addr is at ff80002a info->portwidth = 2 addr[0] = 0x0 addr[1] = 0x31 addr[2] = 0x0 addr[3] = 0x0 retval = 0x31 ff800020 : 00 51 00 52 00 59 00 01 00 00 00 31 00 00 00 00 .Q.R.Y.....1.... ff800030 : 00 00 00 00 00 00 00 27 00 36 00 00 00 00 00 08 .......'.6...... ff800040 : 00 08 00 0b 00 00 00 02 00 02 00 03 00 00 00 17 ................ ff800050 : 00 02 00 00 00 05 00 00 00 01 00 3f 00 00 00 00 ...........?.... ff800060 : 00 02 00 50 00 52 00 49 00 31 00 31 00 ce 00 00 ...P.R.I.1.1.... ff800070 : 00 00 00 00 00 01 00 01 00 00 00 33 00 00 00 01 ...........3.... ff800080 : 00 80 00 00 00 03 00 03 00 03 00 00 00 00 00 00 ................ ff800090 : ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ manufacturer is 1 manufacturer id is 0x89 device id is 0x17 device id2 is 0x0 cfi version is 0x3131 size_ratio 1 port 16 bits chip 16 bits found 1 erase regions long addr is at ff80005a info->portwidth = 2 addr[0] = 0x0 addr[1] = 0x3f addr[2] = 0x0 addr[3] = 0x0 addr[4] = 0x0 addr[5] = 0x0 addr[6] = 0x0 addr[7] = 0x2 erase_region_count = 64 erase_region_size = 131072 Bus Fault @ 0x01fe4424, fixup 0x00000000 Machine check in kernel mode. Caused by (from msr): regs 01fbc978 Data parity signal NIP: 01FE4424 XER: 20000000 LR: 01FE43D8 REGS: 01fbc978 TRAP: 0200 DAR: 00000000MSR: 00021000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00 GPR00: 00000000 01FBCA68 C01FC950 01FFF8D0 00000001 01FBCA70 00000001 00000006 GPR08: 00000000 FFC00004 01FBCA73 00000003 01FBC860 30000000 02001600 00000000 GPR16: 00020000 00000001 0000002D 00000000 00000020 00000040 0000002D FFC20000 GPR24: 01FFF950 00000001 00000020 00000004 01FFF8D0 01FBCB58 02001A94 FFC00000 Call backtrace: machine check NIP: FFFFFFFC XER: 00000000 LR: 01FED864 REGS: 01fbc868 TRAP: 0700 DAR: 00000001MSR: 00000000 EE: 0 PR: 0 FP: 0 ME: 0 IR/DR: 00 Does anybody have an idea what could be wrong? Best Regards Mirek ============================================================================= Miroslaw Dach (Miroslaw.Dach(a)psi.ch) - SLS/Controls Group PSI - Paul Scherrer Institut CH-5232 Villigen ============================================================================= ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users

2 1

[U-Boot-Users] [PATCH 3/3] OneNAND support (take #2)
by Kyungmin Park 10 Sep '07

10 Sep '07

[PATCH 3/3] OneNAND support (take #2) OneNAND support at U-Boot Signed-off-by: Kyungmin Park <kyungmin.park(a)samsung.com> --- diff --git a/Makefile b/Makefile index 0371d46..8926904 100644 --- a/Makefile +++ b/Makefile @@ -211,6 +211,7 @@ LIBS += drivers/libdrivers.a LIBS += drivers/bios_emulator/libatibiosemu.a LIBS += drivers/nand/libnand.a LIBS += drivers/nand_legacy/libnand_legacy.a +LIBS += drivers/onenand/libonenand.a LIBS += drivers/net/libnet.a ifeq ($(CPU),mpc83xx) LIBS += drivers/qe/qe.a diff --git a/common/Makefile b/common/Makefile index ef7d097..fde5ad9 100644 --- a/common/Makefile +++ b/common/Makefile @@ -37,13 +37,14 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o circbuf.o cmd_autoscript.o \ cmd_load.o cmd_log.o \ cmd_mem.o cmd_mii.o cmd_misc.o cmd_mmc.o \ cmd_nand.o cmd_net.o cmd_nvedit.o \ + cmd_onenand.o \ cmd_pci.o cmd_pcmcia.o cmd_portio.o \ cmd_reginfo.o cmd_reiser.o cmd_sata.o cmd_scsi.o cmd_spi.o \ cmd_universe.o cmd_usb.o cmd_vfd.o \ command.o console.o cyclon2.o devices.o dlmalloc.o docecc.o \ environment.o env_common.o \ env_nand.o env_dataflash.o env_flash.o env_eeprom.o \ - env_nvram.o env_nowhere.o \ + env_onenand.o env_nvram.o env_nowhere.o \ exports.o \ fdt_support.o flash.o fpga.o ft_build.o \ hush.o kgdb.o lcd.o lists.o lynxkdi.o \ diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c index 1db0fc3..6770408 100644 --- a/common/cmd_nvedit.c +++ b/common/cmd_nvedit.c @@ -57,8 +57,9 @@ DECLARE_GLOBAL_DATA_PTR; !defined(CFG_ENV_IS_IN_FLASH) && \ !defined(CFG_ENV_IS_IN_DATAFLASH) && \ !defined(CFG_ENV_IS_IN_NAND) && \ + !defined(CFG_ENV_IS_IN_ONENAND) && \ !defined(CFG_ENV_IS_NOWHERE) -# error Define one of CFG_ENV_IS_IN_{NVRAM|EEPROM|FLASH|DATAFLASH|NOWHERE} +# error Define one of CFG_ENV_IS_IN_{NVRAM|EEPROM|FLASH|DATAFLASH|ONENAND|NOWHERE} #endif #define XMK_STR(x) #x @@ -553,7 +554,8 @@ int getenv_r (char *name, char *buf, unsigned len) #if defined(CFG_ENV_IS_IN_NVRAM) || defined(CFG_ENV_IS_IN_EEPROM) \ || (defined(CONFIG_CMD_ENV) && defined(CONFIG_CMD_FLASH)) \ - || (defined(CONFIG_CMD_ENV) && defined(CONFIG_CMD_NAND)) + || (defined(CONFIG_CMD_ENV) && defined(CONFIG_CMD_NAND)) \ + || (defined(CONFIG_CMD_ENV) && defined(CONFIG_CMD_ONENAND)) int do_saveenv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { extern char * env_name_spec; @@ -608,7 +610,8 @@ U_BOOT_CMD( #if defined(CFG_ENV_IS_IN_NVRAM) || defined(CFG_ENV_IS_IN_EEPROM) \ || (defined(CONFIG_CMD_ENV) && defined(CONFIG_CMD_FLASH)) \ - || (defined(CONFIG_CMD_ENV) && defined(CONFIG_CMD_NAND)) + || (defined(CONFIG_CMD_ENV) && defined(CONFIG_CMD_NAND)) \ + || (defined(CONFIG_CMD_ENV) && defined(CONFIG_CMD_ONENAND)) U_BOOT_CMD( saveenv, 1, 0, do_saveenv, "saveenv - save environment variables to persistent storage\n", diff --git a/common/cmd_onenand.c b/common/cmd_onenand.c new file mode 100644 index 0000000..dcda099 --- /dev/null +++ b/common/cmd_onenand.c @@ -0,0 +1,155 @@ +/* + * U-Boot command for OneNAND support + * + * Copyright (C) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <common.h> +#include <command.h> + +#ifdef CONFIG_CMD_ONENAND + +#include <linux/mtd/compat.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/onenand.h> + +#include <asm/io.h> + +extern struct mtd_info onenand_mtd; +extern struct onenand_chip onenand_chip; + +int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + int ret = 0; + + switch (argc) { + case 0: + case 1: + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + + case 2: + if (strncmp(argv[1], "open", 4) == 0) { + onenand_init(); + return 0; + } + onenand_print_device_info(onenand_chip.device_id, 1); + return 0; + + default: + /* At least 4 args */ + if (strncmp(argv[1], "erase", 5) == 0) { + struct erase_info instr; + ulong start, end; + ulong block; + + start = simple_strtoul(argv[2], NULL, 10); + end = simple_strtoul(argv[3], NULL, 10); + start -= (unsigned long)onenand_chip.base; + end -= (unsigned long)onenand_chip.base; + + if (!end || end < 0) + end = start; + + printf("Erase block from %d to %d\n", start, end); + + for (block = start; block <= end; block++) { + instr.addr = block << onenand_chip.erase_shift; + instr.len = 1 << onenand_chip.erase_shift; + ret = onenand_erase(&onenand_mtd, &instr); + if (ret) { + printf("erase failed %d\n", block); + break; + } + } + + return 0; + } + + if (strncmp(argv[1], "read", 4) == 0) { + ulong addr = simple_strtoul(argv[2], NULL, 16); + ulong ofs = simple_strtoul(argv[3], NULL, 16); + size_t len = simple_strtoul(argv[4], NULL, 16); + size_t retlen = 0; + int oob = strncmp(argv[1], "read.oob", 8) ? 0 : 1; + + ofs -= (unsigned long)onenand_chip.base; + + if (oob) + onenand_read_oob(&onenand_mtd, ofs, len, + &retlen, (u_char *) addr); + else + onenand_read(&onenand_mtd, ofs, len, &retlen, + (u_char *) addr); + printf("Done\n"); + + return 0; + } + + if (strncmp(argv[1], "write", 5) == 0) { + ulong addr = simple_strtoul(argv[2], NULL, 16); + ulong ofs = simple_strtoul(argv[3], NULL, 16); + size_t len = simple_strtoul(argv[4], NULL, 16); + size_t retlen = 0; + + ofs -= (unsigned long)onenand_chip.base; + + onenand_write(&onenand_mtd, ofs, len, &retlen, + (u_char *) addr); + printf("Done\n"); + + return 0; + } + + if (strncmp(argv[1], "block", 5) == 0) { + ulong addr = simple_strtoul(argv[2], NULL, 16); + ulong block = simple_strtoul(argv[3], NULL, 10); + ulong page = simple_strtoul(argv[4], NULL, 10); + size_t len = simple_strtol(argv[5], NULL, 10); + size_t retlen = 0; + ulong ofs; + int oob = strncmp(argv[1], "block.oob", 9) ? 0 : 1; + + ofs = block << onenand_chip.erase_shift; + if (page) + ofs += page << onenand_chip.page_shift; + + if (!len) { + if (oob) + len = 64; + else + len = 512; + } + + if (oob) + onenand_read_oob(&onenand_mtd, ofs, len, + &retlen, (u_char *) addr); + else + onenand_read(&onenand_mtd, ofs, len, &retlen, + (u_char *) addr); + return 0; + } + + break; + } + + return 0; +} + +U_BOOT_CMD( + onenand, 6, 1, do_onenand, + "onenand - OneNAND sub-system\n", + "info - show available OneNAND devices\n" + "onenand read[.oob] addr ofs len - read data at ofs with len to addr\n" + "onenand write addr ofs len - write data at ofs with len from addr\n" + "onenand erase saddr eaddr - erase block start addr to end addr\n" + "onenand block[.oob] addr block [page] [len] - " + "read data with (block [, page]) to addr" +); + +#endif /* CONFIG_CMD_ONENAND */ diff --git a/common/env_onenand.c b/common/env_onenand.c new file mode 100644 index 0000000..66107f9 --- /dev/null +++ b/common/env_onenand.c @@ -0,0 +1,134 @@ +/* + * (C) Copyright 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#if defined(CFG_ENV_IS_IN_ONENAND) /* Environment is in OneNAND */ + +#include <command.h> +#include <environment.h> +#include <linux/stddef.h> +#include <malloc.h> + +#include <linux/mtd/compat.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/onenand.h> + +extern struct mtd_info onenand_mtd; +extern struct onenand_chip onenand_chip; + +/* References to names in env_common.c */ +extern uchar default_environment[]; + +#define ONENAND_ENV_SIZE(mtd) (mtd.oobblock - ENV_HEADER_SIZE) + +char *env_name_spec = "OneNAND"; + +#ifdef ENV_IS_EMBEDDED +extern uchar environment[]; +env_t *env_ptr = (env_t *) (&environment[0]); +#else /* ! ENV_IS_EMBEDDED */ +static unsigned char onenand_env[MAX_ONENAND_PAGESIZE]; +env_t *env_ptr = (env_t *) onenand_env; +#endif /* ENV_IS_EMBEDDED */ + +uchar env_get_char_spec(int index) +{ + DECLARE_GLOBAL_DATA_PTR; + + return (*((uchar *) (gd->env_addr + index))); +} + +void env_relocate_spec(void) +{ + DECLARE_GLOBAL_DATA_PTR; + unsigned long env_addr; + int use_default = 0; + int retlen; + + env_addr = CFG_ENV_ADDR; + env_addr -= (unsigned long)onenand_chip.base; + + /* Check OneNAND exist */ + if (onenand_mtd.oobblock) + /* Ignore read fail */ + onenand_read(&onenand_mtd, env_addr, onenand_mtd.oobblock, + &retlen, (u_char *) env_ptr); + else + onenand_mtd.oobblock = MAX_ONENAND_PAGESIZE; + + if (crc32(0, env_ptr->data, ONENAND_ENV_SIZE(onenand_mtd)) != + env_ptr->crc) + use_default = 1; + + if (use_default) { + memcpy(env_ptr->data, default_environment, + ONENAND_ENV_SIZE(onenand_mtd)); + env_ptr->crc = + crc32(0, env_ptr->data, ONENAND_ENV_SIZE(onenand_mtd)); + } + + gd->env_addr = (ulong) & env_ptr->data; + gd->env_valid = 1; +} + +int saveenv(void) +{ + unsigned long env_addr = CFG_ENV_ADDR; + struct erase_info instr; + int retlen; + + instr.len = CFG_ENV_SIZE; + instr.addr = env_addr; + instr.addr -= (unsigned long)onenand_chip.base; + if (onenand_erase(&onenand_mtd, &instr)) { + printf("OneNAND: erase failed at 0x%08x\n", env_addr); + return 1; + } + + /* update crc */ + env_ptr->crc = + crc32(0, env_ptr->data, onenand_mtd.oobblock - ENV_HEADER_SIZE); + + env_addr -= (unsigned long)onenand_chip.base; + if (onenand_write(&onenand_mtd, env_addr, onenand_mtd.oobblock, &retlen, + (u_char *) env_ptr)) { + printf("OneNAND: write failed at 0x%08x\n", instr.addr); + return 2; + } + + return 0; +} + +int env_init(void) +{ + DECLARE_GLOBAL_DATA_PTR; + + /* use default */ + gd->env_addr = (ulong) & default_environment[0]; + gd->env_valid = 1; + + return 0; +} + +#endif /* CFG_ENV_IS_IN_ONENAND */ diff --git a/include/config_cmd_all.h b/include/config_cmd_all.h index 3d91e99..f8eca87 100644 --- a/include/config_cmd_all.h +++ b/include/config_cmd_all.h @@ -59,6 +59,7 @@ #define CONFIG_CMD_NAND /* NAND support */ #define CONFIG_CMD_NET /* bootp, tftpboot, rarpboot */ #define CONFIG_CMD_NFS /* NFS support */ +#define CONFIG_CMD_ONENAND /* OneNAND support */ #define CONFIG_CMD_PCI /* pciinfo */ #define CONFIG_CMD_PCMCIA /* PCMCIA support */ #define CONFIG_CMD_PING /* ping support */ diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h new file mode 100644 index 0000000..f194cf1 --- /dev/null +++ b/include/linux/mtd/bbm.h @@ -0,0 +1,127 @@ +/* + * linux/include/linux/mtd/bbm.h + * + * NAND family Bad Block Management (BBM) header file + * - Bad Block Table (BBT) implementation + * + * Copyright (c) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * Copyright (c) 2000-2005 + * Thomas Gleixner <tglx(a)linuxtronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __LINUX_MTD_BBM_H +#define __LINUX_MTD_BBM_H + +/* The maximum number of NAND chips in an array */ +#ifndef NAND_MAX_CHIPS +#define NAND_MAX_CHIPS 8 +#endif + +/** + * struct nand_bbt_descr - bad block table descriptor + * @param options options for this descriptor + * @param pages the page(s) where we find the bbt, used with + * option BBT_ABSPAGE when bbt is searched, + * then we store the found bbts pages here. + * Its an array and supports up to 8 chips now + * @param offs offset of the pattern in the oob area of the page + * @param veroffs offset of the bbt version counter in the oob are of the page + * @param version version read from the bbt page during scan + * @param len length of the pattern, if 0 no pattern check is performed + * @param maxblocks maximum number of blocks to search for a bbt. This number of + * blocks is reserved at the end of the device + * where the tables are written. + * @param reserved_block_code if non-0, this pattern denotes a reserved + * (rather than bad) block in the stored bbt + * @param pattern pattern to identify bad block table or factory marked + * good / bad blocks, can be NULL, if len = 0 + * + * Descriptor for the bad block table marker and the descriptor for the + * pattern which identifies good and bad blocks. The assumption is made + * that the pattern and the version count are always located in the oob area + * of the first block. + */ +struct nand_bbt_descr { + int options; + int pages[NAND_MAX_CHIPS]; + int offs; + int veroffs; + uint8_t version[NAND_MAX_CHIPS]; + int len; + int maxblocks; + int reserved_block_code; + uint8_t *pattern; +}; + +/* Options for the bad block table descriptors */ + +/* The number of bits used per block in the bbt on the device */ +#define NAND_BBT_NRBITS_MSK 0x0000000F +#define NAND_BBT_1BIT 0x00000001 +#define NAND_BBT_2BIT 0x00000002 +#define NAND_BBT_4BIT 0x00000004 +#define NAND_BBT_8BIT 0x00000008 +/* The bad block table is in the last good block of the device */ +#define NAND_BBT_LASTBLOCK 0x00000010 +/* The bbt is at the given page, else we must scan for the bbt */ +#define NAND_BBT_ABSPAGE 0x00000020 +/* The bbt is at the given page, else we must scan for the bbt */ +#define NAND_BBT_SEARCH 0x00000040 +/* bbt is stored per chip on multichip devices */ +#define NAND_BBT_PERCHIP 0x00000080 +/* bbt has a version counter at offset veroffs */ +#define NAND_BBT_VERSION 0x00000100 +/* Create a bbt if none axists */ +#define NAND_BBT_CREATE 0x00000200 +/* Search good / bad pattern through all pages of a block */ +#define NAND_BBT_SCANALLPAGES 0x00000400 +/* Scan block empty during good / bad block scan */ +#define NAND_BBT_SCANEMPTY 0x00000800 +/* Write bbt if neccecary */ +#define NAND_BBT_WRITE 0x00001000 +/* Read and write back block contents when writing bbt */ +#define NAND_BBT_SAVECONTENT 0x00002000 +/* Search good / bad pattern on the first and the second page */ +#define NAND_BBT_SCAN2NDPAGE 0x00004000 + +/* The maximum number of blocks to scan for a bbt */ +#define NAND_BBT_SCAN_MAXBLOCKS 4 + +/* + * Constants for oob configuration + */ +#define ONENAND_BADBLOCK_POS 0 + +/** + * struct bbt_info - [GENERIC] Bad Block Table data structure + * @param bbt_erase_shift [INTERN] number of address bits in a bbt entry + * @param badblockpos [INTERN] position of the bad block marker in the oob area + * @param bbt [INTERN] bad block table pointer + * @param badblock_pattern [REPLACEABLE] bad block scan pattern used for initial bad block scan + * @param priv [OPTIONAL] pointer to private bbm date + */ +struct bbm_info { + int bbt_erase_shift; + int badblockpos; + int options; + + uint8_t *bbt; + + int (*isbad_bbt) (struct mtd_info * mtd, loff_t ofs, int allowbbt); + + /* TODO Add more NAND specific fileds */ + struct nand_bbt_descr *badblock_pattern; + + void *priv; +}; + +/* OneNAND BBT interface */ +extern int onenand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd); +extern int onenand_default_bbt (struct mtd_info *mtd); + +#endif /* __LINUX_MTD_BBM_H */ diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h new file mode 100644 index 0000000..4b0c2df --- /dev/null +++ b/include/linux/mtd/onenand.h @@ -0,0 +1,143 @@ +/* + * linux/include/linux/mtd/onenand.h + * + * Copyright (C) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __LINUX_MTD_ONENAND_H +#define __LINUX_MTD_ONENAND_H + +#include <linux/mtd/onenand_regs.h> + +/* Note: The header order is impoertant */ +#include <onenand_uboot.h> + +#include <linux/mtd/bbm.h> + +#define MAX_BUFFERRAM 2 +#define MAX_ONENAND_PAGESIZE (2048 + 64) + +/* Scan and identify a OneNAND device */ +extern int onenand_scan (struct mtd_info *mtd, int max_chips); +/* Free resources held by the OneNAND device */ +extern void onenand_release (struct mtd_info *mtd); + +/** + * onenand_state_t - chip states + * Enumeration for OneNAND flash chip state + */ +typedef enum { + FL_READY, + FL_READING, + FL_WRITING, + FL_ERASING, + FL_SYNCING, + FL_UNLOCKING, + FL_LOCKING, +} onenand_state_t; + +/** + * struct onenand_bufferram - OneNAND BufferRAM Data + * @param block block address in BufferRAM + * @param page page address in BufferRAM + * @param valid valid flag + */ +struct onenand_bufferram { + int block; + int page; + int valid; +}; + +/** + * struct onenand_chip - OneNAND Private Flash Chip Data + * @param base [BOARDSPECIFIC] address to access OneNAND + * @param chipsize [INTERN] the size of one chip for multichip arrays + * @param device_id [INTERN] device ID + * @param verstion_id [INTERN] version ID + * @param options [BOARDSPECIFIC] various chip options. They can partly be set to inform onenand_scan about + * @param erase_shift [INTERN] number of address bits in a block + * @param page_shift [INTERN] number of address bits in a page + * @param ppb_shift [INTERN] number of address bits in a pages per block + * @param page_mask [INTERN] a page per block mask + * @param bufferam_index [INTERN] BufferRAM index + * @param bufferam [INTERN] BufferRAM info + * @param readw [REPLACEABLE] hardware specific function for read short + * @param writew [REPLACEABLE] hardware specific function for write short + * @param command [REPLACEABLE] hardware specific function for writing commands to the chip + * @param wait [REPLACEABLE] hardware specific function for wait on ready + * @param read_bufferram [REPLACEABLE] hardware specific function for BufferRAM Area + * @param write_bufferram [REPLACEABLE] hardware specific function for BufferRAM Area + * @param chip_lock [INTERN] spinlock used to protect access to this structure and the chip + * @param wq [INTERN] wait queue to sleep on if a OneNAND operation is in progress + * @param state [INTERN] the current state of the OneNAND device + * @param autooob [REPLACEABLE] the default (auto)placement scheme + * @param priv [OPTIONAL] pointer to private chip date + */ +struct onenand_chip { + void __iomem *base; + unsigned int chipsize; + unsigned int device_id; + unsigned int options; + + unsigned int erase_shift; + unsigned int page_shift; + unsigned int ppb_shift; /* Pages per block shift */ + unsigned int page_mask; + + unsigned int bufferram_index; + struct onenand_bufferram bufferram[MAX_BUFFERRAM]; + + int (*command) (struct mtd_info * mtd, int cmd, loff_t address, + size_t len); + int (*wait) (struct mtd_info * mtd, int state); + int (*read_bufferram) (struct mtd_info * mtd, int area, + unsigned char *buffer, int offset, size_t count); + int (*write_bufferram) (struct mtd_info * mtd, int area, + const unsigned char *buffer, int offset, + size_t count); + unsigned short (*read_word) (void __iomem * addr); + void (*write_word) (unsigned short value, void __iomem * addr); + void (*mmcontrol) (struct mtd_info * mtd, int sync_read); + + spinlock_t chip_lock; + wait_queue_head_t wq; + onenand_state_t state; + + struct nand_oobinfo *autooob; + + void *bbm; + + void *priv; +}; + +#define ONENAND_CURRENT_BUFFERRAM(this) (this->bufferram_index) +#define ONENAND_NEXT_BUFFERRAM(this) (this->bufferram_index ^ 1) +#define ONENAND_SET_NEXT_BUFFERRAM(this) (this->bufferram_index ^= 1) + +/* + * Options bits + */ +#define ONENAND_CONT_LOCK (0x0001) + +/* + * OneNAND Flash Manufacturer ID Codes + */ +#define ONENAND_MFR_SAMSUNG 0xec +#define ONENAND_MFR_UNKNOWN 0x00 + +/** + * struct nand_manufacturers - NAND Flash Manufacturer ID Structure + * @param name: Manufacturer name + * @param id: manufacturer ID code of device. +*/ +struct onenand_manufacturers { + int id; + char *name; +}; + +#endif /* __LINUX_MTD_ONENAND_H */ diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h new file mode 100644 index 0000000..c8a9f3e --- /dev/null +++ b/include/linux/mtd/onenand_regs.h @@ -0,0 +1,181 @@ +/* + * linux/include/linux/mtd/onenand_regs.h + * + * OneNAND Register header file + * + * Copyright (C) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ONENAND_REG_H +#define __ONENAND_REG_H + +/* Memory Address Map Translation (Word order) */ +#define ONENAND_MEMORY_MAP(x) ((x) << 1) + +/* + * External BufferRAM area + */ +#define ONENAND_BOOTRAM ONENAND_MEMORY_MAP(0x0000) +#define ONENAND_DATARAM ONENAND_MEMORY_MAP(0x0200) +#define ONENAND_SPARERAM ONENAND_MEMORY_MAP(0x8010) + +/* + * OneNAND Registers + */ +#define ONENAND_REG_MANUFACTURER_ID ONENAND_MEMORY_MAP(0xF000) +#define ONENAND_REG_DEVICE_ID ONENAND_MEMORY_MAP(0xF001) +#define ONENAND_REG_VERSION_ID ONENAND_MEMORY_MAP(0xF002) +#define ONENAND_REG_DATA_BUFFER_SIZE ONENAND_MEMORY_MAP(0xF003) +#define ONENAND_REG_BOOT_BUFFER_SIZE ONENAND_MEMORY_MAP(0xF004) +#define ONENAND_REG_NUM_BUFFERS ONENAND_MEMORY_MAP(0xF005) +#define ONENAND_REG_TECHNOLOGY ONENAND_MEMORY_MAP(0xF006) + +#define ONENAND_REG_START_ADDRESS1 ONENAND_MEMORY_MAP(0xF100) +#define ONENAND_REG_START_ADDRESS2 ONENAND_MEMORY_MAP(0xF101) +#define ONENAND_REG_START_ADDRESS3 ONENAND_MEMORY_MAP(0xF102) +#define ONENAND_REG_START_ADDRESS4 ONENAND_MEMORY_MAP(0xF103) +#define ONENAND_REG_START_ADDRESS5 ONENAND_MEMORY_MAP(0xF104) +#define ONENAND_REG_START_ADDRESS6 ONENAND_MEMORY_MAP(0xF105) +#define ONENAND_REG_START_ADDRESS7 ONENAND_MEMORY_MAP(0xF106) +#define ONENAND_REG_START_ADDRESS8 ONENAND_MEMORY_MAP(0xF107) + +#define ONENAND_REG_START_BUFFER ONENAND_MEMORY_MAP(0xF200) +#define ONENAND_REG_COMMAND ONENAND_MEMORY_MAP(0xF220) +#define ONENAND_REG_SYS_CFG1 ONENAND_MEMORY_MAP(0xF221) +#define ONENAND_REG_SYS_CFG2 ONENAND_MEMORY_MAP(0xF222) +#define ONENAND_REG_CTRL_STATUS ONENAND_MEMORY_MAP(0xF240) +#define ONENAND_REG_INTERRUPT ONENAND_MEMORY_MAP(0xF241) +#define ONENAND_REG_START_BLOCK_ADDRESS ONENAND_MEMORY_MAP(0xF24C) +#define ONENAND_REG_END_BLOCK_ADDRESS ONENAND_MEMORY_MAP(0xF24D) +#define ONENAND_REG_WP_STATUS ONENAND_MEMORY_MAP(0xF24E) + +#define ONENAND_REG_ECC_STATUS ONENAND_MEMORY_MAP(0xFF00) +#define ONENAND_REG_ECC_M0 ONENAND_MEMORY_MAP(0xFF01) +#define ONENAND_REG_ECC_S0 ONENAND_MEMORY_MAP(0xFF02) +#define ONENAND_REG_ECC_M1 ONENAND_MEMORY_MAP(0xFF03) +#define ONENAND_REG_ECC_S1 ONENAND_MEMORY_MAP(0xFF04) +#define ONENAND_REG_ECC_M2 ONENAND_MEMORY_MAP(0xFF05) +#define ONENAND_REG_ECC_S2 ONENAND_MEMORY_MAP(0xFF06) +#define ONENAND_REG_ECC_M3 ONENAND_MEMORY_MAP(0xFF07) +#define ONENAND_REG_ECC_S3 ONENAND_MEMORY_MAP(0xFF08) + +/* + * Device ID Register F001h (R) + */ +#define ONENAND_DEVICE_DENSITY_SHIFT (4) +#define ONENAND_DEVICE_IS_DDP (1 << 3) +#define ONENAND_DEVICE_IS_DEMUX (1 << 2) +#define ONENAND_DEVICE_VCC_MASK (0x3) + +#define ONENAND_DEVICE_DENSITY_512Mb (0x002) + +/* + * Version ID Register F002h (R) + */ +#define ONENAND_VERSION_PROCESS_SHIFT (8) + +/* + * Start Address 1 F100h (R/W) + */ +#define ONENAND_DDP_SHIFT (15) + +/* + * Start Address 8 F107h (R/W) + */ +#define ONENAND_FPA_MASK (0x3f) +#define ONENAND_FPA_SHIFT (2) +#define ONENAND_FSA_MASK (0x03) + +/* + * Start Buffer Register F200h (R/W) + */ +#define ONENAND_BSA_MASK (0x03) +#define ONENAND_BSA_SHIFT (8) +#define ONENAND_BSA_BOOTRAM (0 << 2) +#define ONENAND_BSA_DATARAM0 (2 << 2) +#define ONENAND_BSA_DATARAM1 (3 << 2) +#define ONENAND_BSC_MASK (0x03) + +/* + * Command Register F220h (R/W) + */ +#define ONENAND_CMD_READ (0x00) +#define ONENAND_CMD_READOOB (0x13) +#define ONENAND_CMD_PROG (0x80) +#define ONENAND_CMD_PROGOOB (0x1A) +#define ONENAND_CMD_UNLOCK (0x23) +#define ONENAND_CMD_LOCK (0x2A) +#define ONENAND_CMD_LOCK_TIGHT (0x2C) +#define ONENAND_CMD_ERASE (0x94) +#define ONENAND_CMD_RESET (0xF0) +#define ONENAND_CMD_READID (0x90) + +/* NOTE: Those are not *REAL* commands */ +#define ONENAND_CMD_BUFFERRAM (0x1978) + +/* + * System Configuration 1 Register F221h (R, R/W) + */ +#define ONENAND_SYS_CFG1_SYNC_READ (1 << 15) +#define ONENAND_SYS_CFG1_BRL_7 (7 << 12) +#define ONENAND_SYS_CFG1_BRL_6 (6 << 12) +#define ONENAND_SYS_CFG1_BRL_5 (5 << 12) +#define ONENAND_SYS_CFG1_BRL_4 (4 << 12) +#define ONENAND_SYS_CFG1_BRL_3 (3 << 12) +#define ONENAND_SYS_CFG1_BRL_10 (2 << 12) +#define ONENAND_SYS_CFG1_BRL_9 (1 << 12) +#define ONENAND_SYS_CFG1_BRL_8 (0 << 12) +#define ONENAND_SYS_CFG1_BRL_SHIFT (12) +#define ONENAND_SYS_CFG1_BL_32 (4 << 9) +#define ONENAND_SYS_CFG1_BL_16 (3 << 9) +#define ONENAND_SYS_CFG1_BL_8 (2 << 9) +#define ONENAND_SYS_CFG1_BL_4 (1 << 9) +#define ONENAND_SYS_CFG1_BL_CONT (0 << 9) +#define ONENAND_SYS_CFG1_BL_SHIFT (9) +#define ONENAND_SYS_CFG1_NO_ECC (1 << 8) +#define ONENAND_SYS_CFG1_RDY (1 << 7) +#define ONENAND_SYS_CFG1_INT (1 << 6) +#define ONENAND_SYS_CFG1_IOBE (1 << 5) +#define ONENAND_SYS_CFG1_RDY_CONF (1 << 4) + +/* + * Controller Status Register F240h (R) + */ +#define ONENAND_CTRL_ONGO (1 << 15) +#define ONENAND_CTRL_LOCK (1 << 14) +#define ONENAND_CTRL_LOAD (1 << 13) +#define ONENAND_CTRL_PROGRAM (1 << 12) +#define ONENAND_CTRL_ERASE (1 << 11) +#define ONENAND_CTRL_ERROR (1 << 10) +#define ONENAND_CTRL_RSTB (1 << 7) + +/* + * Interrupt Status Register F241h (R) + */ +#define ONENAND_INT_MASTER (1 << 15) +#define ONENAND_INT_READ (1 << 7) +#define ONENAND_INT_WRITE (1 << 6) +#define ONENAND_INT_ERASE (1 << 5) +#define ONENAND_INT_RESET (1 << 4) +#define ONENAND_INT_CLEAR (0 << 0) + +/* + * NAND Flash Write Protection Status Register F24Eh (R) + */ +#define ONENAND_WP_US (1 << 2) +#define ONENAND_WP_LS (1 << 1) +#define ONENAND_WP_LTS (1 << 0) + +/* + * ECC Status Reigser FF00h (R) + */ +#define ONENAND_ECC_1BIT (1 << 0) +#define ONENAND_ECC_2BIT (1 << 1) +#define ONENAND_ECC_2BIT_ALL (0xAAAA) + +#endif /* __ONENAND_REG_H */ diff --git a/include/onenand_uboot.h b/include/onenand_uboot.h new file mode 100644 index 0000000..bd1831e --- /dev/null +++ b/include/onenand_uboot.h @@ -0,0 +1,39 @@ +/* + * Header file for OneNAND support for U-Boot + * + * Adaptation from kernel to U-Boot + * + * Copyright (C) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __UBOOT_ONENAND_H +#define __UBOOT_ONENAND_H + +struct kvec { + void *iov_base; + size_t iov_len; +}; + +typedef int spinlock_t; +typedef int wait_queue_head_t; + +/* Functions */ +extern void onenand_init(void); +extern int onenand_read(struct mtd_info *mtd, loff_t from, size_t len, + size_t * retlen, u_char * buf); +extern int onenand_read_oob(struct mtd_info *mtd, loff_t from, size_t len, + size_t * retlen, u_char * buf); +extern int onenand_write(struct mtd_info *mtd, loff_t from, size_t len, + size_t * retlen, const u_char * buf); +extern int onenand_erase(struct mtd_info *mtd, struct erase_info *instr); + +extern int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len); + +extern void onenand_print_device_info(int device, int verbose); + +#endif /* __UBOOT_ONENAND_H */ diff --git a/lib_arm/board.c b/lib_arm/board.c index d28afc5..634e4d9 100644 --- a/lib_arm/board.c +++ b/lib_arm/board.c @@ -58,6 +58,10 @@ DECLARE_GLOBAL_DATA_PTR; void nand_init (void); #endif +#if defined(CONFIG_CMD_ONENAND) +void onenand_init(void); +#endif + ulong monitor_flash_len; #ifdef CONFIG_HAS_DATAFLASH @@ -301,6 +305,10 @@ void start_armboot (void) nand_init(); /* go init the NAND */ #endif +#if defined(CONFIG_CMD_ONENAND) + onenand_init(); +#endif + #ifdef CONFIG_HAS_DATAFLASH AT91F_DataflashInit(); dataflash_print_info();

1 0

[U-Boot-Users] [PATCH 2/3] OneNAND support (take #2)
by Kyungmin Park 10 Sep '07

10 Sep '07

[PATCH 2/3] OneNAND support (take #2) OneNAND support at U-Boot Signed-off-by: Kyungmin Park <kyungmin.park(a)samsung.com> --- diff --git a/drivers/onenand/Makefile b/drivers/onenand/Makefile new file mode 100644 index 0000000..5d7a471 --- /dev/null +++ b/drivers/onenand/Makefile @@ -0,0 +1,44 @@ +# +# Copyright (C) 2005-2007 Samsung Electronics. +# Kyungmin Park <kyungmin.park(a)samsung.com> +# +# See file CREDITS for list of people who contributed to this +# project. +# +# 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. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB := $(obj)libonenand.a + +COBJS := onenand_base.o onenand_bbt.o + +SRCS := $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) + +all: $(LIB) + +$(LIB): $(obj).depend $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/drivers/onenand/onenand_bbt.c b/drivers/onenand/onenand_bbt.c new file mode 100644 index 0000000..5a610ee --- /dev/null +++ b/drivers/onenand/onenand_bbt.c @@ -0,0 +1,265 @@ +/* + * linux/drivers/mtd/onenand/onenand_bbt.c + * + * Bad Block Table support for the OneNAND driver + * + * Copyright(c) 2005-2007 Samsung Electronics + * Kyungmin Park <kyungmin.park(a)samsung.com> + * + * TODO: + * Split BBT core and chip specific BBT. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <common.h> + +#ifdef CONFIG_CMD_ONENAND + +#include <linux/mtd/compat.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/onenand.h> +#include <malloc.h> + +#include <asm/errno.h> + +/** + * check_short_pattern - [GENERIC] check if a pattern is in the buffer + * @param buf the buffer to search + * @param len the length of buffer to search + * @param paglen the pagelength + * @param td search pattern descriptor + * + * Check for a pattern at the given place. Used to search bad block + * tables and good / bad block identifiers. Same as check_pattern, but + * no optional empty check and the pattern is expected to start + * at offset 0. + */ +static int check_short_pattern(uint8_t * buf, int len, int paglen, + struct nand_bbt_descr *td) +{ + int i; + uint8_t *p = buf; + + /* Compare the pattern */ + for (i = 0; i < td->len; i++) { + if (p[i] != td->pattern[i]) + return -1; + } + return 0; +} + +/** + * create_bbt - [GENERIC] Create a bad block table by scanning the device + * @param mtd MTD device structure + * @param buf temporary buffer + * @param bd descriptor for the good/bad block search pattern + * @param chip create the table for a specific chip, -1 read all chips. + * Applies only if NAND_BBT_PERCHIP option is set + * + * Create a bad block table by scanning the device + * for the given good/bad block identify pattern + */ +static int create_bbt(struct mtd_info *mtd, uint8_t * buf, + struct nand_bbt_descr *bd, int chip) +{ + struct onenand_chip *this = mtd->priv; + struct bbm_info *bbm = this->bbm; + int i, j, numblocks, len, scanlen; + int startblock; + loff_t from; + size_t readlen, ooblen; + + printk(KERN_INFO "Scanning device for bad blocks\n"); + + len = 1; + + /* We need only read few bytes from the OOB area */ + scanlen = ooblen = 0; + readlen = bd->len; + + /* chip == -1 case only */ + /* Note that numblocks is 2 * (real numblocks) here; + * see i += 2 below as it makses shifting and masking less painful + */ + numblocks = mtd->size >> (bbm->bbt_erase_shift - 1); + startblock = 0; + from = 0; + + for (i = startblock; i < numblocks;) { + int ret; + + for (j = 0; j < len; j++) { + size_t retlen; + + /* No need to read pages fully, + * just read required OOB bytes */ + ret = onenand_read_oob(mtd, + from + j * mtd->oobblock + + bd->offs, readlen, &retlen, + &buf[0]); + + if (ret && ret != -EAGAIN) { + printk("ret = %d\n", ret); + return ret; + } + + if (check_short_pattern + (&buf[j * scanlen], scanlen, mtd->oobblock, bd)) { + bbm->bbt[i >> 3] |= 0x03 << (i & 0x6); + printk(KERN_WARNING + "Bad eraseblock %d at 0x%08x\n", i >> 1, + (unsigned int)from); + break; + } + } + i += 2; + from += (1 << bbm->bbt_erase_shift); + } + + return 0; +} + +/** + * onenand_memory_bbt - [GENERIC] create a memory based bad block table + * @param mtd MTD device structure + * @param bd descriptor for the good/bad block search pattern + * + * The function creates a memory based bbt by scanning the device + * for manufacturer / software marked good / bad blocks + */ +static inline int onenand_memory_bbt(struct mtd_info *mtd, + struct nand_bbt_descr *bd) +{ + unsigned char data_buf[MAX_ONENAND_PAGESIZE]; + + bd->options &= ~NAND_BBT_SCANEMPTY; + return create_bbt(mtd, data_buf, bd, -1); +} + +/** + * onenand_isbad_bbt - [OneNAND Interface] Check if a block is bad + * @param mtd MTD device structure + * @param offs offset in the device + * @param allowbbt allow access to bad block table region + */ +static int onenand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt) +{ + struct onenand_chip *this = mtd->priv; + struct bbm_info *bbm = this->bbm; + int block; + uint8_t res; + + /* Get block number * 2 */ + block = (int)(offs >> (bbm->bbt_erase_shift - 1)); + res = (bbm->bbt[block >> 3] >> (block & 0x06)) & 0x03; + + DEBUG(MTD_DEBUG_LEVEL2, + "onenand_isbad_bbt: bbt info for offs 0x%08x: (block %d) 0x%02x\n", + (unsigned int)offs, block >> 1, res); + + switch ((int)res) { + case 0x00: + return 0; + case 0x01: + return 1; + case 0x02: + return allowbbt ? 0 : 1; + } + + return 1; +} + +/** + * onenand_scan_bbt - [OneNAND Interface] scan, find, read and maybe create bad block table(s) + * @param mtd MTD device structure + * @param bd descriptor for the good/bad block search pattern + * + * The function checks, if a bad block table(s) is/are already + * available. If not it scans the device for manufacturer + * marked good / bad blocks and writes the bad block table(s) to + * the selected place. + * + * The bad block table memory is allocated here. It must be freed + * by calling the onenand_free_bbt function. + * + */ +int onenand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) +{ + struct onenand_chip *this = mtd->priv; + struct bbm_info *bbm = this->bbm; + int len, ret = 0; + + len = mtd->size >> (this->erase_shift + 2); + /* Allocate memory (2bit per block) */ + bbm->bbt = malloc(len); + if (!bbm->bbt) { + printk(KERN_ERR "onenand_scan_bbt: Out of memory\n"); + return -ENOMEM; + } + /* Clear the memory bad block table */ + memset(bbm->bbt, 0x00, len); + + /* Set the bad block position */ + bbm->badblockpos = ONENAND_BADBLOCK_POS; + + /* Set erase shift */ + bbm->bbt_erase_shift = this->erase_shift; + + if (!bbm->isbad_bbt) + bbm->isbad_bbt = onenand_isbad_bbt; + + /* Scan the device to build a memory based bad block table */ + if ((ret = onenand_memory_bbt(mtd, bd))) { + printk(KERN_ERR + "onenand_scan_bbt: Can't scan flash and build the RAM-based BBT\n"); + free(bbm->bbt); + bbm->bbt = NULL; + } + + return ret; +} + +/* + * Define some generic bad / good block scan pattern which are used + * while scanning a device for factory marked good / bad blocks. + */ +static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; + +static struct nand_bbt_descr largepage_memorybased = { + .options = 0, + .offs = 0, + .len = 2, + .pattern = scan_ff_pattern, +}; + +/** + * onenand_default_bbt - [OneNAND Interface] Select a default bad block table for the device + * @param mtd MTD device structure + * + * This function selects the default bad block table + * support for the device and calls the onenand_scan_bbt function + */ +int onenand_default_bbt(struct mtd_info *mtd) +{ + struct onenand_chip *this = mtd->priv; + struct bbm_info *bbm; + + this->bbm = malloc(sizeof(struct bbm_info)); + if (!this->bbm) + return -ENOMEM; + + bbm = this->bbm; + + memset(bbm, 0, sizeof(struct bbm_info)); + + /* 1KB page has same configuration as 2KB page */ + if (!bbm->badblock_pattern) + bbm->badblock_pattern = &largepage_memorybased; + + return onenand_scan_bbt(mtd, bbm->badblock_pattern); +} + +#endif /* CFG_CMD_ONENAND */

1 0

[U-Boot-Users] [PATCH] Remove compiler warning: target CPU does not support interworking
by Kyungmin Park 10 Sep '07

10 Sep '07

Remove compiler warning: target CPU does not support interworking Signed-off-by: Kyungmin Park <kyungmin.park(a)samsung.com> --- diff --git a/cpu/arm1136/config.mk b/cpu/arm1136/config.mk index e39e774..6ab0dd3 100644 --- a/cpu/arm1136/config.mk +++ b/cpu/arm1136/config.mk @@ -31,4 +31,5 @@ PLATFORM_CPPFLAGS += -march=armv5 # # ========================================================================= PLATFORM_CPPFLAGS +=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) +PLATFORM_CPPFLAGS +=$(call cc-option,-mno-thumb-interwork,) PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))

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