diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Makefile | 3 | ||||
| -rw-r--r-- | common/cmd_nvedit.c | 9 | ||||
| -rw-r--r-- | common/cmd_onenand.c | 155 | ||||
| -rw-r--r-- | common/env_onenand.c | 134 |
4 files changed, 297 insertions, 4 deletions
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@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@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 */ |