diff options
Diffstat (limited to 'recipes/u-boot/u-boot-mkimage-openmoko-native/nand-otp.patch')
| -rw-r--r-- | recipes/u-boot/u-boot-mkimage-openmoko-native/nand-otp.patch | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/recipes/u-boot/u-boot-mkimage-openmoko-native/nand-otp.patch b/recipes/u-boot/u-boot-mkimage-openmoko-native/nand-otp.patch new file mode 100644 index 0000000000..1f49544282 --- /dev/null +++ b/recipes/u-boot/u-boot-mkimage-openmoko-native/nand-otp.patch @@ -0,0 +1,302 @@ +Index: u-boot/common/cmd_nand.c +=================================================================== +--- u-boot.orig/common/cmd_nand.c ++++ u-boot/common/cmd_nand.c +@@ -392,6 +392,14 @@ + else + ret = nand->write_oob(nand, off, size, &size, + (u_char *) addr); ++ } else if (s != NULL && !strcmp(s, ".otp")) { ++ /* read out-of-band data */ ++ if (read) ++ ret = nand->read_otp(nand, off, size, &size, ++ (u_char *) addr); ++ else ++ ret = nand->write_otp(nand, off, size, &size, ++ (u_char *) addr); + } else { + if (read) + ret = nand_read(nand, off, &size, (u_char *)addr); +@@ -527,8 +535,9 @@ + "nand - NAND sub-system\n", + "info - show available NAND devices\n" + "nand device [dev] - show or set current device\n" +- "nand read[.jffs2] - addr off|partition size\n" +- "nand write[.jffs2] - addr off|partiton size - read/write `size' bytes starting\n" ++ "nand read[.jffs2, .oob, .otp] addr off|partition size\n" ++ "nand write[.jffs2, .oob, .otp] addr off|partiton size\n" ++ " - read/write `size' bytes starting\n" + " at offset `off' to/from memory address `addr'\n" + "nand erase [clean] [off size] - erase `size' bytes from\n" + " offset `off' (entire device if not specified)\n" +Index: u-boot/cpu/arm920t/s3c24x0/nand.c +=================================================================== +--- u-boot.orig/cpu/arm920t/s3c24x0/nand.c ++++ u-boot/cpu/arm920t/s3c24x0/nand.c +@@ -205,7 +205,7 @@ + } + #endif + +-int board_nand_init(struct nand_chip *nand) ++int s3c24x0_nand_init(struct nand_chip *nand) + { + u_int32_t cfg; + u_int8_t tacls, twrph0, twrph1; +Index: u-boot/drivers/nand/nand_base.c +=================================================================== +--- u-boot.orig/drivers/nand/nand_base.c ++++ u-boot/drivers/nand/nand_base.c +@@ -2042,6 +2042,32 @@ + } + #endif + ++/* ++ * See nand_read_oob and nand_write_oob ++ */ ++ ++static int nand_read_otp(struct mtd_info *mtd, loff_t from, size_t len, ++ size_t *retlen, u_char *buf) ++{ ++ struct nand_chip *this = mtd->priv; ++ ++ if (!this->read_otp) ++ return -ENOSYS; ++ return this->read_otp(mtd, from, len, retlen, buf); ++ ++} ++ ++static int nand_write_otp(struct mtd_info *mtd, loff_t to, size_t len, ++ size_t *retlen, const u_char *buf) ++{ ++ struct nand_chip *this = mtd->priv; ++ ++ if (!this->write_otp) ++ return -ENOSYS; ++ return this->write_otp(mtd, to, len, retlen, buf); ++} ++ ++ + /** + * single_erease_cmd - [GENERIC] NAND standard block erase command function + * @mtd: MTD device structure +@@ -2613,6 +2639,8 @@ + mtd->write_ecc = nand_write_ecc; + mtd->read_oob = nand_read_oob; + mtd->write_oob = nand_write_oob; ++ mtd->read_otp = nand_read_otp; ++ mtd->write_otp = nand_write_otp; + /* XXX U-BOOT XXX */ + #if 0 + mtd->readv = NULL; +Index: u-boot/include/linux/mtd/mtd.h +=================================================================== +--- u-boot.orig/include/linux/mtd/mtd.h ++++ u-boot/include/linux/mtd/mtd.h +@@ -95,6 +95,9 @@ + int (*read_oob) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf); + int (*write_oob) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf); + ++ int (*read_otp) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf); ++ int (*write_otp) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf); ++ + /* + * Methods to access the protection register area, present in some + * flash devices. The user data is one time programmable but the +Index: u-boot/include/linux/mtd/nand.h +=================================================================== +--- u-boot.orig/include/linux/mtd/nand.h ++++ u-boot/include/linux/mtd/nand.h +@@ -307,6 +307,10 @@ + void (*enable_hwecc)(struct mtd_info *mtd, int mode); + void (*erase_cmd)(struct mtd_info *mtd, int page); + int (*scan_bbt)(struct mtd_info *mtd); ++ int (*read_otp)(struct mtd_info *mtd, loff_t from, ++ size_t len, size_t *retlen, u_char *buf); ++ int (*write_otp) (struct mtd_info *mtd, loff_t to, ++ size_t len, size_t *retlen, const u_char *buf); + int eccmode; + int eccsize; + int eccbytes; +Index: u-boot/board/neo1973/gta01/Makefile +=================================================================== +--- u-boot.orig/board/neo1973/gta01/Makefile ++++ u-boot/board/neo1973/gta01/Makefile +@@ -25,7 +25,7 @@ + + LIB = lib$(BOARD).a + +-OBJS := gta01.o pcf50606.o ../common/cmd_neo1973.o ../common/jbt6k74.o ../common/udc.o ../common/bootmenu.o ++OBJS := gta01.o pcf50606.o nand.o ../common/cmd_neo1973.o ../common/jbt6k74.o ../common/udc.o ../common/bootmenu.o + SOBJS := ../common/lowlevel_init.o + + .PHONY: all +Index: u-boot/board/neo1973/gta01/nand.c +=================================================================== +--- /dev/null ++++ u-boot/board/neo1973/gta01/nand.c +@@ -0,0 +1,121 @@ ++/* ++ * nand.c - Board-specific NAND setup ++ * ++ * Copyright (C) 2007 by Openmoko, Inc. ++ * Written by Werner Almesberger <werner@openmoko.org> ++ * All Rights Reserved ++ * ++ * 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 "config.h" /* nand.h needs NAND_MAX_CHIPS */ ++#include "linux/mtd/mtd.h" ++#include "linux/mtd/nand.h" ++#include "asm/errno.h" ++ ++ ++int s3c24x0_nand_init(struct nand_chip *nand); ++ ++ ++static void samsung_nand_begin_otp(struct mtd_info *mtd) ++{ ++ struct nand_chip *this = mtd->priv; ++ ++ /* @@@FIXME: this is ugly - we select the NAND chip to send the ++ mode switch commands, knowing that it will be switched off later */ ++ this->select_chip(mtd, 0); ++ /* "magic" mode change */ ++ this->cmdfunc(mtd, 0x30, -1, -1); ++ this->cmdfunc(mtd, 0x65, -1, -1); ++} ++ ++ ++static void samsung_nand_end_otp(struct mtd_info *mtd) ++{ ++ struct nand_chip *this = mtd->priv; ++ ++ /* read/write deselected the chip so now we need to select again */ ++ this->select_chip(mtd, 0); ++ this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1); ++ this->select_chip(mtd, -1); ++} ++ ++ ++static loff_t otp_page[] = { ++ 0x15, /* 00-XX-00-00, with XX = 15h-19h */ ++ 0x16, ++ 0x17, ++ 0x18, ++ 0x19, ++ 0x1b, /* 00-1B-00-00 */ ++}; ++ ++#define OTP_PAGES (sizeof(otp_page)/sizeof(*otp_page)) ++ ++ ++static int convert_otp_address(loff_t *addr, size_t *len) ++{ ++ int page; ++ ++ if (*len && *addr >> 9 != (*addr+*len-1) >> 9) ++ return -EINVAL; ++ if (*len > 512) ++ return -EINVAL; ++ page = *addr >> 9; ++ if (page >= OTP_PAGES) ++ return -EINVAL; ++ *addr = otp_page[page] << 9; ++ return 0; ++} ++ ++ ++static int samsung_nand_read_otp(struct mtd_info *mtd, loff_t from, ++ size_t len, size_t *retlen, u_char *buf) ++{ ++ int ret; ++ ++ ret = convert_otp_address(&from, &len); ++ if (ret) ++ return ret; ++ samsung_nand_begin_otp(mtd); ++ ret = mtd->read(mtd, from, len, retlen, buf); ++ samsung_nand_end_otp(mtd); ++ return ret; ++} ++ ++ ++static int samsung_nand_write_otp(struct mtd_info *mtd, loff_t to, ++ size_t len, size_t *retlen, const u_char *buf) ++{ ++ int ret; ++ ++ ret = convert_otp_address(&to, &len); ++ if (ret) ++ return ret; ++ samsung_nand_begin_otp(mtd); ++ ret = mtd->write(mtd, to, len, retlen, buf); ++ samsung_nand_end_otp(mtd); ++ return ret; ++} ++ ++ ++int board_nand_init(struct nand_chip *nand) ++{ ++ nand->read_otp = samsung_nand_read_otp; ++ nand->write_otp = samsung_nand_write_otp; ++ return s3c24x0_nand_init(nand); ++} +Index: u-boot/board/neo1973/gta02/nand.c +=================================================================== +--- /dev/null ++++ u-boot/board/neo1973/gta02/nand.c +@@ -0,0 +1,39 @@ ++/* ++ * nand.c - Board-specific NAND setup ++ * ++ * Copyright (C) 2007 by Openmoko, Inc. ++ * Written by Werner Almesberger <werner@openmoko.org> ++ * All Rights Reserved ++ * ++ * 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 "config.h" /* nand.h needs NAND_MAX_CHIPS */ ++#include "linux/mtd/mtd.h" ++#include "linux/mtd/nand.h" ++ ++ ++int s3c24x0_nand_init(struct nand_chip *nand); ++ ++ ++/* Add OTP et al later */ ++ ++ ++int board_nand_init(struct nand_chip *nand) ++{ ++ return s3c24x0_nand_init(nand); ++} |