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authorFelix Fietkau <nbd@openwrt.org>2005-04-18 19:51:42 +0000
committerFelix Fietkau <nbd@openwrt.org>2005-04-18 19:51:42 +0000
commite3b86ee3fb6960dbd2503a4ac01659c8e907b21e (patch)
treea6f87fac16d22ed13dfdc4793a87128c29095b91 /package/busybox/config
parent26afbfb9fffedf03bbc0d3aaa937786b08270b77 (diff)
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enable dirname and id by default (needed by openswan)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@676 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/busybox/config')
-rw-r--r--package/busybox/config/coreutils/Config.in4
1 files changed, 2 insertions, 2 deletions
diff --git a/package/busybox/config/coreutils/Config.in b/package/busybox/config/coreutils/Config.in
index 1a3ef990cf..10cf659b10 100644
--- a/package/busybox/config/coreutils/Config.in
+++ b/package/busybox/config/coreutils/Config.in
@@ -112,7 +112,7 @@ config BUSYBOX_CONFIG_DF
config BUSYBOX_CONFIG_DIRNAME
bool "dirname"
- default n
+ default y
help
dirname is used to strip a non-directory suffix from
a file name.
@@ -214,7 +214,7 @@ config BUSYBOX_CONFIG_HOSTID
config BUSYBOX_CONFIG_ID
bool "id"
- default n
+ default y
help
id displays the current user and group ID names.
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/*
 * This file is part of the flashrom project.
 *
 * Copyright (C) 2011-2012 Stefan Tauner
 *
 * 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; version 2 of the License.
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "flash.h"
#include "spi.h"
#include "chipdrivers.h"

static int spi_sfdp_read_sfdp_chunk(struct flashctx *flash, uint32_t address, uint8_t *buf, int len)
{
	int i, ret;
	uint8_t *newbuf;
	const unsigned char cmd[JEDEC_SFDP_OUTSIZE] = {
		JEDEC_SFDP,
		(address >> 16) & 0xff,
		(address >> 8) & 0xff,
		(address >> 0) & 0xff,
		/* FIXME: the following dummy byte explodes on some programmers.
		 * One workaround is to read the dummy byte
		 * instead and discard its value.
		 */
		0
	};
	msg_cspew("%s: addr=0x%x, len=%d, data:\n", __func__, address, len);
	newbuf = malloc(len + 1);
	if (!newbuf)
		return SPI_PROGRAMMER_ERROR;
	ret = spi_send_command(flash, sizeof(cmd) - 1, len + 1, cmd, newbuf);
	memmove(buf, newbuf + 1, len);
	free(newbuf);
	if (ret)
		return ret;
	for (i = 0; i < len; i++)
		msg_cspew(" 0x%02x", buf[i]);
	msg_cspew("\n");
	return 0;
}

static int spi_sfdp_read_sfdp(struct flashctx *flash, uint32_t address, uint8_t *buf, int len)
{
	/* FIXME: There are different upper bounds for the number of bytes to
	 * read on the various programmers (even depending on the rest of the
	 * structure of the transaction). 2 is a safe bet. */
	int maxstep = 2;
	int ret = 0;
	while (len > 0) {
		int step = min(len, maxstep);
		ret = spi_sfdp_read_sfdp_chunk(flash, address, buf, step);
		if (ret)
			return ret;
		address += step;
		buf += step;
		len -= step;
	}
	return ret;
}

struct sfdp_tbl_hdr {
	uint8_t id;
	uint8_t v_minor;
	uint8_t v_major;
	uint8_t len;
	uint32_t ptp; /* 24b pointer */
};

static int sfdp_add_uniform_eraser(struct flashchip *chip, uint8_t opcode, uint32_t block_size)
{
	int i;
	uint32_t total_size = chip->total_size * 1024;
	erasefunc_t *erasefn = spi_get_erasefn_from_opcode(opcode);

	if (erasefn == NULL || total_size == 0 || block_size == 0 ||
	    total_size % block_size != 0) {
		msg_cdbg("%s: invalid input, please report to "
			 "flashrom@flashrom.org\n", __func__);
		return 1;
	}

	for (i = 0; i < NUM_ERASEFUNCTIONS; i++) {
		struct block_eraser *eraser = &chip->block_erasers[i];
		/* Check for duplicates (including (some) non-uniform ones). */
		if (eraser->eraseblocks[0].size == block_size &&
		    eraser->block_erase == erasefn) {
			msg_cdbg2("  Tried to add a duplicate block eraser: "
				  "%d x %d B with opcode 0x%02x.\n",
				  total_size/block_size, block_size, opcode);
			return 1;
		}
		if (eraser->eraseblocks[0].size != 0 ||
		    eraser->block_erase != NULL) {
			msg_cspew("  Block Eraser %d is already occupied.\n",
				  i);
			continue;
		}

		eraser->block_erase = erasefn;
		eraser->eraseblocks[0].size = block_size;
		eraser->eraseblocks[0].count = total_size/block_size;
		msg_cdbg2("  Block eraser %d: %d x %d B with opcode "
			  "0x%02x\n", i, total_size/block_size, block_size,
			  opcode);
		return 0;
	}
	msg_cinfo("%s: Not enough space to store another eraser (i=%d)."
		  " Please report this at flashrom@flashrom.org\n",
		  __func__, i);
	return 1;
}

static int sfdp_fill_flash(struct flashchip *chip, uint8_t *buf, uint16_t len)
{
	uint8_t opcode_4k_erase = 0xFF;
	uint32_t tmp32;
	uint8_t tmp8;
	uint32_t total_size; /* in bytes */
	uint32_t block_size;
	int j;

	msg_cdbg("Parsing JEDEC flash parameter table... ");
	if (len != 9 * 4 && len != 4 * 4) {
		msg_cdbg("%s: len out of spec\n", __func__);
		return 1;
	}
	msg_cdbg2("\n");
	
	/* 1. double word */
	tmp32 =  ((unsigned int)buf[(4 * 0) + 0]);
	tmp32 |= ((unsigned int)buf[(4 * 0) + 1]) << 8;
	tmp32 |= ((unsigned int)buf[(4 * 0) + 2]) << 16;
	tmp32 |= ((unsigned int)buf[(4 * 0) + 3]) << 24;

	tmp8 = (tmp32 >> 17) & 0x3;
	switch (tmp8) {
	case 0x0:
		msg_cdbg2("  3-Byte only addressing.\n");
		break;
	case 0x1:
		msg_cdbg2("  3-Byte (and optionally 4-Byte) addressing.\n");
		break;
	case 0x2:
		msg_cdbg("  4-Byte only addressing (not supported by "
			 "flashrom).\n");
		return 1;
	default:
		msg_cdbg("  Required addressing mode (0x%x) not supported.\n",
			 tmp8);
		return 1;
	}

	msg_cdbg2("  Status register is ");
	if (tmp32 & (1 << 3)) {
		msg_cdbg2("volatile and writes to the status register have to "
			  "be enabled with ");
		if (tmp32 & (1 << 4)) {
			chip->feature_bits = FEATURE_WRSR_WREN;
			msg_cdbg2("WREN (0x06).\n");
		} else {
			chip->feature_bits = FEATURE_WRSR_EWSR;
			msg_cdbg2("EWSR (0x50).\n");
		}
	} else {
		msg_cdbg2("non-volatile and the standard does not allow "
			  "vendors to tell us whether EWSR/WREN is needed for "
			  "status register writes - assuming EWSR.\n");
			chip->feature_bits = FEATURE_WRSR_EWSR;
		}

	msg_cdbg2("  Write chunk size is ");
	if (tmp32 & (1 << 2)) {
		msg_cdbg2("at least 64 B.\n");
		chip->page_size = 64;
		chip->write = spi_chip_write_256;
	} else {
		msg_cdbg2("1 B only.\n");
		chip->page_size = 256;
		chip->write = spi_chip_write_1;
	}

	if ((tmp32 & 0x3) == 0x1) {
		opcode_4k_erase = (tmp32 >> 8) & 0xFF;
		msg_cspew("  4kB erase opcode is 0x%02x.\n", opcode_4k_erase);
		/* add the eraser later, because we don't know total_size yet */
	} else
		msg_cspew("  4kB erase opcode is not defined.\n");

	/* 2. double word */
	tmp32 =  ((unsigned int)buf[(4 * 1) + 0]);
	tmp32 |= ((unsigned int)buf[(4 * 1) + 1]) << 8;
	tmp32 |= ((unsigned int)buf[(4 * 1) + 2]) << 16;
	tmp32 |= ((unsigned int)buf[(4 * 1) + 3]) << 24;

	if (tmp32 & (1 << 31)) {
		msg_cdbg("Flash chip size >= 4 Gb/512 MB not supported.\n");
		return 1;
	}
	total_size = ((tmp32 & 0x7FFFFFFF) + 1) / 8;
	chip->total_size = total_size / 1024;
	msg_cdbg2("  Flash chip size is %d kB.\n", chip->total_size);
	if (total_size > (1 << 24)) {
		msg_cdbg("Flash chip size is bigger than what 3-Byte addressing "
			 "can access.\n");
		return 1;
	}

	if (opcode_4k_erase != 0xFF)
		sfdp_add_uniform_eraser(chip, opcode_4k_erase, 4 * 1024);

	/* FIXME: double words 3-7 contain unused fast read information */

	if (len == 4 * 4) {
		msg_cdbg("  It seems like this chip supports the preliminary "
			 "Intel version of SFDP, skipping processing of double "
			 "words 3-9.\n");
		goto done;
	}

	/* 8. double word */
	for (j = 0; j < 4; j++) {
		/* 7 double words from the start + 2 bytes for every eraser */
		tmp8 = buf[(4 * 7) + (j * 2)];
		msg_cspew("   Erase Sector Type %d Size: 0x%02x\n", j + 1,
			  tmp8);
		if (tmp8 == 0) {
			msg_cspew("  Erase Sector Type %d is unused.\n", j);
			continue;
		}
		if (tmp8 >= 31) {
			msg_cdbg2("  Block size of erase Sector Type %d (2^%d) "
				 "is too big for flashrom.\n", j, tmp8);
			continue;
		}
		block_size = 1 << (tmp8); /* block_size = 2 ^ field */

		tmp8 = buf[(4 * 7) + (j * 2) + 1];
		msg_cspew("   Erase Sector Type %d Opcode: 0x%02x\n", j + 1,
			  tmp8);