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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <byteswap.h>
#include <stdint.h>
#include <stdbool.h>
#include <getopt.h>
#include <limits.h>
#include <arpa/inet.h>
#include <assert.h>
#include <libflash/libflash.h>
#include <libflash/libffs.h>
#include <libflash/blocklevel.h>
#include "progress.h"
#include "io.h"
#include "ast.h"
#include "sfc-ctrl.h"
#define __aligned(x) __attribute__((aligned(x)))
/* Full pflash version number (possibly includes gitid). */
extern const char version[];
static bool must_confirm = true;
static bool dummy_run;
static bool need_relock;
static bool bmc_flash;
static uint32_t ffs_toc = 0;
static int flash_side = 0;
#ifdef __powerpc__
static bool using_sfc;
#endif
#define FILE_BUF_SIZE 0x10000
static uint8_t file_buf[FILE_BUF_SIZE] __aligned(0x1000);
static struct blocklevel_device *bl;
static struct spi_flash_ctrl *fl_ctrl;
static struct ffs_handle *ffsh;
static uint32_t fl_total_size, fl_erase_granule;
static const char *fl_name;
static int32_t ffs_index = -1;
static void check_confirm(void)
{
char yes[8], *p;
if (!must_confirm)
return;
printf("WARNING ! This will modify your %s flash chip content !\n",
bmc_flash ? "BMC" : "HOST");
printf("Enter \"yes\" to confirm:");
memset(yes, 0, sizeof(yes));
if (!fgets(yes, 7, stdin))
exit(1);
p = strchr(yes, 10);
if (p)
*p = 0;
p = strchr(yes, 13);
if (p)
*p = 0;
if (strcmp(yes, "yes")) {
printf("Operation cancelled !\n");
exit(1);
}
must_confirm = false;
}
static void print_ffs_info(uint32_t toc_offset)
{
struct ffs_handle *ffs_handle;
uint32_t other_side_offset = 0;
int rc;
uint32_t i;
rc = ffs_init(toc_offset, fl_total_size, bl, &ffs_handle);
if (rc) {
fprintf(stderr, "Error %d opening ffs !\n", rc);
return;
}
printf("\n");
printf("TOC@0x%08x Partitions:\n", toc_offset);
printf("-----------\n");
for (i = 0;; i++) {
uint32_t start, size, act, end;
bool ecc;
char *name;
rc = ffs_part_info(ffs_handle, i, &name, &start, &size, &act, &ecc);
if (rc == FFS_ERR_PART_NOT_FOUND)
break;
if (rc) {
fprintf(stderr, "Error %d scanning partitions\n", rc);
break;
}
end = start + size;
printf("ID=%02d %15s %08x..%08x (actual=%08x) %s\n",
i, name, start, end, act, ecc ? "[ECC]" : "");
if (strcmp(name, "OTHER_SIDE") == 0)
other_side_offset = start;
free(name);
}
ffs_close(ffs_handle);
if (other_side_offset)
print_ffs_info(other_side_offset);
}
static void print_flash_info(uint32_t toc)
{
printf("Flash info:\n");
printf("-----------\n");
printf("Name = %s\n", fl_name);
printf("Total size = %dMB \n", fl_total_size >> 20);
printf("Erase granule = %dKB \n", fl_erase_granule >> 10);
if (bmc_flash)
return;
print_ffs_info(toc);
}
static int open_partition(const char *name)
{
uint32_t index;
int rc;
/* Open libffs if needed */
if (!ffsh) {
rc = ffs_init(ffs_toc, fl_total_size, bl, &ffsh);
if (rc) {
fprintf(stderr, "Error %d opening ffs !\n", rc);
if (ffs_toc)
fprintf(stderr, "You specified 0x%08x as the libffs TOC"
" looks like it doesn't exist\n", ffs_toc);
return rc;
}
}
/* Find partition */
rc = ffs_lookup_part(ffsh, name, &index);
if (rc == FFS_ERR_PART_NOT_FOUND) {
fprintf(stderr, "Partition '%s' not found !\n", name);
return rc;
}
if (rc) {
fprintf(stderr, "Error %d looking for partition '%s' !\n",
rc, name);
return rc;
}
ffs_index = index;
return 0;
}
static void lookup_partition(const char *name)
{
int rc;
if (flash_side == 1) {
uint32_t other_side_offset;
rc = open_partition("OTHER_SIDE");
if (rc == FFS_ERR_PART_NOT_FOUND)
fprintf(stderr, "side 1 was specified but there doesn't appear"
" to be a second side to this flash\n");
if (rc)
exit(1);
/* Just need to know where it starts */
rc = ffs_part_info(ffsh, ffs_index, NULL, &other_side_offset, NULL, NULL, NULL);
if (rc)
exit(1);
ffs_close(ffsh);
ffsh = NULL;
ffs_toc = other_side_offset;
}
rc = open_partition(name);
if (rc)
exit(1);
}
static void erase_chip(void)
{
int rc;
printf("About to erase chip !\n");
check_confirm();
printf("Erasing... (may take a while !) ");
fflush(stdout);
if (dummy_run) {
printf("skipped (dummy)\n");
return;
}
rc = flash_erase_chip(bl);
if (rc) {
fprintf(stderr, "Error %d erasing chip\n", rc);
exit(1);
}
printf("done !\n");
}
static void erase_range(uint32_t start, uint32_t size, bool will_program)
{
uint32_t done = 0;
int rc;
printf("About to erase 0x%08x..0x%08x !\n", start, start + size);
check_confirm();
if (dummy_run) {
printf("skipped (dummy)\n");
return;
}
printf("Erasing...\n");
progress_init(size >> 8);
while(size) {
/* If aligned to 64k and at least 64k, use 64k erase */
if ((start & 0xffff) == 0 && size >= 0x10000) {
rc = blocklevel_erase(bl, start, 0x10000);
if (rc) {
fprintf(stderr, "Error %d erasing 0x%08x\n",
rc, start);
exit(1);
}
start += 0x10000;
size -= 0x10000;
done += 0x10000;
} else {
rc = blocklevel_erase(bl, start, 0x1000);
if (rc) {
fprintf(stderr, "Error %d erasing 0x%08x\n",
rc, start);
exit(1);
}
start += 0x1000;
size -= 0x1000;
done += 0x1000;
}
progress_tick(done >> 8);
}
progress_end();
/* If this is a flash partition, mark it empty if we aren't
* going to program over it as well
*/
if (ffsh && ffs_index >= 0 && !will_program) {
printf("Updating actual size in partition header...\n");
ffs_update_act_size(ffsh, ffs_index, 0);
}
}
static void set_ecc(uint32_t start, uint32_t size)
{
uint32_t i = start + 8;
uint8_t ecc = 0;
printf("About to erase and set ECC bits in region 0x%08x to 0x%08x\n", start, start + size);
check_confirm();
erase_range(start, size, true);
printf("Programming ECC bits...\n");
progress_init(size);
while (i < start + size) {
blocklevel_write(bl, i, &ecc, sizeof(ecc));
i += 9;
progress_tick(i - start);
}
progress_end();
}
static void program_file(const char *file, uint32_t start, uint32_t size)
{
int fd, rc;
ssize_t len;
uint32_t actual_size = 0;
fd = open(file, O_RDONLY);
if (fd == -1) {
perror("Failed to open file");
exit(1);
}
printf("About to program \"%s\" at 0x%08x..0x%08x !\n",
file, start, start + size);
check_confirm();
if (dummy_run) {
printf("skipped (dummy)\n");
return;
}
printf("Programming & Verifying...\n");
progress_init(size >> 8);
while(size) {
len = read(fd, file_buf, FILE_BUF_SIZE);
if (len < 0) {
perror("Error reading file");
exit(1);
}
if (len == 0)
break;
if (len > size)
len = size;
size -= len;
actual_size += len;
rc = blocklevel_write(bl, start, file_buf, len);
if (rc) {
if (rc == FLASH_ERR_VERIFY_FAILURE)
fprintf(stderr, "Verification failed for"
" chunk at 0x%08x\n", start);
else
fprintf(stderr, "Flash write error %d for"
" chunk at 0x%08x\n", rc, start);
exit(1);
}
start += len;
progress_tick(actual_size >> 8);
}
progress_end();
close(fd);
/* If this is a flash partition, adjust its size */
if (ffsh && ffs_index >= 0) {
printf("Updating actual size in partition header...\n");
ffs_update_act_size(ffsh, ffs_index, actual_size);
}
}
static void do_read_file(const char *file, uint32_t start, uint32_t size)
{
int fd, rc;
ssize_t len;
uint32_t done = 0;
fd = open(file, O_WRONLY | O_TRUNC | O_CREAT, 00666);
if (fd == -1) {
perror("Failed to open file");
exit(1);
}
printf("Reading to \"%s\" from 0x%08x..0x%08x !\n",
file, start, start + size);
progress_init(size >> 8);
while(size) {
len = size > FILE_BUF_SIZE ? FILE_BUF_SIZE : size;
rc = blocklevel_read(bl, start, file_buf, len);
if (rc) {
fprintf(stderr, "Flash read error %d for"
" chunk at 0x%08x\n", rc, start);
exit(1);
}
rc = write(fd, file_buf, len);
if (rc < 0) {
perror("Error writing file");
exit(1);
}
start += len;
size -= len;
done += len;
progress_tick(done >> 8);
}
progress_end();
close(fd);
}
static void enable_4B_addresses(void)
{
int rc;
printf("Switching to 4-bytes address mode\n");
rc = flash_force_4b_mode(bl, true);
if (rc) {
fprintf(stderr, "Error %d enabling 4b mode\n", rc);
exit(1);
}
}
static void disable_4B_addresses(void)
{
int rc;
printf("Switching to 3-bytes address mode\n");
rc = flash_force_4b_mode(bl, false);
if (rc) {
fprintf(stderr, "Error %d disabling 4b mode\n", rc);
exit(1);
}
}
static void flash_access_cleanup_bmc(void)
{
if (ffsh)
ffs_close(ffsh);
flash_exit(bl);
ast_sf_close(fl_ctrl);
close_devs();
}
static void flash_access_setup_bmc(bool use_lpc, bool need_write)
{
int rc;
/* Open and map devices */
open_devs(use_lpc, true);
/* Create the AST flash controller */
rc = ast_sf_open(AST_SF_TYPE_BMC, &fl_ctrl);
if (rc) {
fprintf(stderr, "Failed to open controller\n");
exit(1);
}
/* Open flash chip */
rc = flash_init(fl_ctrl, &bl);
if (rc) {
fprintf(stderr, "Failed to open flash chip\n");
exit(1);
}
/* Setup cleanup function */
atexit(flash_access_cleanup_bmc);
}
static void flash_access_cleanup_pnor(void)
{
/* Re-lock flash */
if (need_relock)
set_wrprotect(true);
if (ffsh)
ffs_close(ffsh);
flash_exit(bl);
#ifdef __powerpc__
if (using_sfc)
sfc_close(fl_ctrl);
else
ast_sf_close(fl_ctrl);
#else
ast_sf_close(fl_ctrl);
#endif
close_devs();
}
static void flash_access_setup_pnor(bool use_lpc, bool use_sfc, bool need_write)
{
int rc;
/* Open and map devices */
open_devs(use_lpc, false);
#ifdef __powerpc__
if (use_sfc) {
/* Create the SFC flash controller */
rc = sfc_open(&fl_ctrl);
if (rc) {
fprintf(stderr, "Failed to open controller\n");
exit(1);
}
using_sfc = true;
} else {
#endif
/* Create the AST flash controller */
rc = ast_sf_open(AST_SF_TYPE_PNOR, &fl_ctrl);
if (rc) {
fprintf(stderr, "Failed to open controller\n");
exit(1);
}
#ifdef __powerpc__
}
#endif
/* Open flash chip */
rc = flash_init(fl_ctrl, &bl);
if (rc) {
fprintf(stderr, "Failed to open flash chip\n");
exit(1);
}
/* Unlock flash (PNOR only) */
if (need_write)
need_relock = set_wrprotect(false);
/* Setup cleanup function */
atexit(flash_access_cleanup_pnor);
}
static void print_version(void)
{
printf("Open-Power Flash tool %s\n", version);
}
static void print_help(const char *pname)
{
printf("Usage: %s [options] commands...\n\n", pname);
printf(" Options:\n");
printf("\t-a address, --address=address\n");
printf("\t\tSpecify the start address for erasing, reading\n");
printf("\t\tor flashing\n\n");
printf("\t-s size, --size=size\n");
printf("\t\tSpecify the size in bytes for erasing, reading\n");
printf("\t\tor flashing\n\n");
printf("\t-P part_name, --partition=part_name\n");
printf("\t\tSpecify the partition whose content is to be erased\n");
printf("\t\tprogrammed or read. This is an alternative to -a and -s\n");
printf("\t\tif both -P and -s are specified, the smallest of the\n");
printf("\t\ttwo will be used\n\n");
printf("\t-f, --force\n");
printf("\t\tDon't ask for confirmation before erasing or flashing\n\n");
printf("\t-d, --dummy\n");
printf("\t\tDon't write to flash\n\n");
#ifdef __powerpc__
printf("\t-l, --lpc\n");
printf("\t\tUse LPC accesses instead of PCI\n\n");
#endif
printf("\t-b, --bmc\n");
printf("\t\tTarget BMC flash instead of host flash\n\n");
printf("\t-S, --side\n");
printf("\t\tSide of the flash on which to operate, 0 (default) or 1\n\n");
printf("\t-T, --toc\n");
printf("\t\tlibffs TOC on which to operate, defaults to 0.\n");
printf("\t\tleading 0x is required for interpretation of a hex value\n\n");
printf(" Commands:\n");
printf("\t-4, --enable-4B\n");
printf("\t\tSwitch the flash and controller to 4-bytes address\n");
printf("\t\tmode (no confirmation needed).\n\n");
printf("\t-3, --disable-4B\n");
printf("\t\tSwitch the flash and controller to 3-bytes address\n");
printf("\t\tmode (no confirmation needed).\n\n");
printf("\t-r file, --read=file\n");
printf("\t\tRead flash content from address into file, use -s\n");
printf("\t\tto specify the size to read (or it will use the source\n");
printf("\t\tfile size if used in conjunction with -p and -s is not\n");
printf("\t\tspecified). When using -r together with -e or -p, the\n");
printf("\t\tread will be peformed first\n\n");
printf("\t-E, --erase-all\n");
printf("\t\tErase entire flash chip\n");
printf("\t\t(Not supported on all chips/controllers)\n\n");
printf("\t-e, --erase\n");
printf("\t\tErase the specified region. If size or address are not\n");
printf("\t\tspecified, but \'--program\' is used, then the file\n");
printf("\t\tsize will be used (rounded to an erase block) and the\n");
printf("\t\taddress defaults to 0.\n\n");
printf("\t-p file, --program=file\n");
printf("\t\tWill program the file to flash. If the address is not\n");
printf("\t\tspecified, it will use 0. If the size is not specified\n");
printf("\t\tit will use the file size. Otherwise it will limit to\n");
printf("\t\tthe specified size (whatever is smaller). If used in\n");
printf("\t\tconjunction with any erase command, the erase will\n");
printf("\t\ttake place first.\n\n");
printf("\t-t, --tune\n");
printf("\t\tJust tune the flash controller & access size\n");
printf("\t\t(Implicit for all other operations)\n\n");
printf("\t-c --clear\n");
printf("\t\tUsed to ECC clear a partition of the flash\n");
printf("\t\tMust be used in conjunction with -P. Will erase the\n");
printf("\t\tpartition and then set all the ECC bits as they should be\n\n");
printf("\t-i, --info\n");
printf("\t\tDisplay some information about the flash.\n\n");
printf("\t-h, --help\n");
printf("\t\tThis message.\n\n");
}
int main(int argc, char *argv[])
{
const char *pname = argv[0];
uint32_t address = 0, read_size = 0, write_size = 0;
uint32_t erase_start = 0, erase_size = 0;
bool erase = false, do_clear = false;
bool program = false, erase_all = false, info = false, do_read = false;
bool enable_4B = false, disable_4B = false, use_lpc = true;
bool show_help = false, show_version = false;
bool has_sfc = false, has_ast = false;
bool no_action = false, tune = false;
char *write_file = NULL, *read_file = NULL, *part_name = NULL;
bool ffs_toc_seen = false;
int rc;
while(1) {
static struct option long_opts[] = {
{"address", required_argument, NULL, 'a'},
{"size", required_argument, NULL, 's'},
{"partition", required_argument, NULL, 'P'},
{"lpc", no_argument, NULL, 'l'},
{"bmc", no_argument, NULL, 'b'},
{"enable-4B", no_argument, NULL, '4'},
{"disable-4B", no_argument, NULL, '3'},
{"read", required_argument, NULL, 'r'},
{"erase-all", no_argument, NULL, 'E'},
{"erase", no_argument, NULL, 'e'},
{"program", required_argument, NULL, 'p'},
{"force", no_argument, NULL, 'f'},
{"info", no_argument, NULL, 'i'},
{"tune", no_argument, NULL, 't'},
{"dummy", no_argument, NULL, 'd'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'v'},
{"debug", no_argument, NULL, 'g'},
{"side", required_argument, NULL, 'S'},
{"toc", required_argument, NULL, 'T'},
{"clear", no_argument, NULL, 'c'}
};
int c, oidx = 0;
c = getopt_long(argc, argv, "a:s:P:r:43Eep:fdihlvbtgS:T:c",
long_opts, &oidx);
if (c == EOF)
break;
switch(c) {
case 'a':
address = strtoul(optarg, NULL, 0);
break;
case 's':
read_size = write_size = strtoul(optarg, NULL, 0);
break;
case 'P':
part_name = strdup(optarg);
break;
case '4':
enable_4B = true;
break;
case '3':
disable_4B = true;
break;
case 'r':
do_read = true;
read_file = strdup(optarg);
break;
case 'E':
erase_all = erase = true;
break;
case 'e':
erase = true;
break;
case 'p':
program = true;
write_file = strdup(optarg);
break;
case 'f':
must_confirm = false;
break;
case 'd':
must_confirm = false;
dummy_run = true;
break;
case 'i':
info = true;
break;
case 'l':
use_lpc = true;
break;
case 'b':
bmc_flash = true;
break;
case 't':
tune = true;
break;
case 'v':
show_version = true;
break;
case 'h':
show_help = show_version = true;
break;
case 'g':
libflash_debug = true;
break;
case 'S':
flash_side = atoi(optarg);
break;
case 'T':
ffs_toc_seen = true;
ffs_toc = strtoul(optarg, NULL, 0);
break;
case 'c':
do_clear = true;
break;
default:
exit(1);
}
}
/* Check if we need to access the flash at all (which will
* also tune them as a side effect
*/
no_action = !erase && !program && !info && !do_read &&
!enable_4B && !disable_4B && !tune && !do_clear;
/* Nothing to do, if we didn't already, print usage */
if (no_action && !show_version)
show_help = show_version = true;
if (show_version)
print_version();
if (show_help)
print_help(pname);
if (no_action)
return 0;
/* --enable-4B and --disable-4B are mutually exclusive */
if (enable_4B && disable_4B) {
fprintf(stderr, "--enable-4B and --disable-4B are mutually"
" exclusive !\n");
exit(1);
}
/* 4B not supported on BMC flash */
if (enable_4B && bmc_flash) {
fprintf(stderr, "--enable-4B not supported on BMC flash !\n");
exit(1);
}
/* partitions not supported on BMC flash */
if (part_name && bmc_flash) {
fprintf(stderr, "--partition not supported on BMC flash !\n");
exit(1);
}
/* part-name and erase-all make no sense together */
if (part_name && erase_all) {
fprintf(stderr, "--partition and --erase-all are mutually"
" exclusive !\n");
exit(1);
}
/* Read command should always come with a file */
if (do_read && !read_file) {
fprintf(stderr, "Read with no file specified !\n");
exit(1);
}
/* Program command should always come with a file */
if (program && !write_file) {
fprintf(stderr, "Program with no file specified !\n");
exit(1);
}
/* If both partition and address specified, error out */
if (address && part_name) {
fprintf(stderr, "Specify partition or address, not both !\n");
exit(1);
}
if (do_clear && !part_name) {
fprintf(stderr, "--clear only supported on a partition name\n");
exit(1);
}
/* Explicitly only support two sides */
if (flash_side != 0 && flash_side != 1) {
fprintf(stderr, "Unexpected value for --side '%d'\n", flash_side);
exit(1);
}
if (ffs_toc_seen && flash_side) {
fprintf(stderr, "--toc and --side are exclusive");
exit(1);
}
/* If file specified but not size, get size from file
*/
if (write_file && !write_size) {
struct stat stbuf;
if (stat(write_file, &stbuf)) {
perror("Failed to get file size");
exit(1);
}
write_size = stbuf.st_size;
}
/* Check platform */
check_platform(&has_sfc, &has_ast);
/* Prepare for access */
if (bmc_flash) {
if (!has_ast) {
fprintf(stderr, "No BMC on this platform\n");
exit(1);
}
flash_access_setup_bmc(use_lpc, erase || program);
} else {
if (!has_ast && !has_sfc) {
fprintf(stderr, "No BMC nor SFC on this platform\n");
exit(1);
}
flash_access_setup_pnor(use_lpc, has_sfc, erase || program);
}
rc = blocklevel_get_info(bl, &fl_name,
&fl_total_size, &fl_erase_granule);
if (rc) {
fprintf(stderr, "Error %d getting flash info\n", rc);
exit(1);
}
/* If -t is passed, then print a nice message */
if (tune)
printf("Flash and controller tuned\n");
/* If read specified and no read_size, use flash size */
if (do_read && !read_size && !part_name)
read_size = fl_total_size;
/* We have a partition specified, grab the details */
if (part_name)
lookup_partition(part_name);
/* We have a partition, adjust read/write size if needed */
if (ffsh && ffs_index >= 0) {
uint32_t pstart, pmaxsz, pactsize;
bool ecc;
int rc;
rc = ffs_part_info(ffsh, ffs_index, NULL,
&pstart, &pmaxsz, &pactsize, &ecc);
if (rc) {
fprintf(stderr,"Failed to get partition info\n");
exit(1);
}
if (!ecc && do_clear) {
fprintf(stderr, "The partition on which to do --clear "
"does not have ECC, are you sure?\n");
check_confirm();
/* Still confirm later on */
must_confirm = true;
}
/* Read size is obtained from partition "actual" size */
if (!read_size)
read_size = pactsize;
/* Write size is max size of partition */
if (!write_size)
write_size = pmaxsz;
/* Crop write size to partition size */
if (write_size > pmaxsz) {
printf("WARNING: Size (%d bytes) larger than partition"
" (%d bytes), cropping to fit\n",
write_size, pmaxsz);
write_size = pmaxsz;
}
/* If erasing, check partition alignment */
if (erase && ((pstart | pmaxsz) & 0xfff)) {
fprintf(stderr,"Partition not aligned properly\n");
exit(1);
}
/* Set address */
address = pstart;
}
/* Align erase boundaries */
if (erase && !erase_all) {
uint32_t mask = 0xfff;
uint32_t erase_end;
/* Dummy size for erase, will be adjusted later */
if (!write_size)
write_size = 1;
erase_start = address & ~mask;
erase_end = ((address + write_size) + mask) & ~mask;
erase_size = erase_end - erase_start;
if (erase_start != address || erase_size != write_size)
fprintf(stderr, "WARNING: Erase region adjusted"
" to 0x%08x..0x%08x\n",
erase_start, erase_end);
}
/* Process commands */
if (enable_4B)
enable_4B_addresses();
if (disable_4B)
disable_4B_addresses();
if (info ) {
/*
* Don't pass through modfied TOC value if the modification was done
* because of --size, but still respect if it came from --toc (we
* assume the user knows what they're doing in that case)
*/
print_flash_info(flash_side ? 0 : ffs_toc);
}
if (do_read)
do_read_file(read_file, address, read_size);
if (erase_all)
erase_chip();
else if (erase)
erase_range(erase_start, erase_size, program);
if (program)
program_file(write_file, address, write_size);
if (do_clear)
set_ecc(address, write_size);
return 0;
}
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