cyg_bool jffs2_flash_read(struct jffs2_sb_info * c,
cyg_uint32 read_buffer_offset, const size_t size,
size_t * return_size, unsigned char *write_buffer)
{
Cyg_ErrNo err;
cyg_uint32 len = size;
struct super_block *sb = OFNI_BS_2SFFJ(c);
//D2(printf("FLASH READ\n"));
//D2(printf("read address = %x\n", CYGNUM_FS_JFFS2_BASE_ADDRESS + read_buffer_offset));
//D2(printf("write address = %x\n", write_buffer));
//D2(printf("size = %x\n", size));
err = cyg_io_bread(sb->s_dev, write_buffer, &len, read_buffer_offset);
*return_size = (size_t) len;
return ((err == ENOERR) ? ENOERR : -EIO);
}
externC void
cyg_start( void )
{
Cyg_ErrNo stat;
cyg_io_handle_t flash_handle;
cyg_io_flash_getconfig_erase_t e;
cyg_io_flash_getconfig_devsize_t d;
cyg_io_flash_getconfig_blocksize_t b;
cyg_io_flash_getconfig_lock_t l;
cyg_io_flash_getconfig_unlock_t u;
CYG_ADDRWORD flash_start, flash_end;
CYG_ADDRWORD flash_test_start, flash_addr;
cyg_uint32 flash_block_size, flash_num_blocks;
CYG_ADDRWORD test_buf1, test_buf2;
cyg_uint32 *lp1, *lp2;
int i, len;
cyg_bool passed, ok;
CYG_TEST_INIT();
passed = true;
if ((stat = cyg_io_lookup(FLASH_TEST_DEVICE, &flash_handle)) == -ENOENT) {
stat = cyg_io_lookup(FLASH_TEST_DEVICE2, &flash_handle);
}
if (stat != 0) {
diag_printf("FLASH: driver init failed: %s\n", strerror(-stat));
CYG_TEST_FAIL_FINISH("FLASH driver init failed");
}
len = sizeof(d);
stat = cyg_io_get_config( flash_handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &d, &len );
flash_start = 0;
// Keep 'end' address as last valid location, to avoid wrap around problems
flash_end = d.dev_size - 1;
len = sizeof(b);
b.offset = 0;
stat = cyg_io_get_config( flash_handle, CYG_IO_GET_CONFIG_FLASH_BLOCKSIZE, &b, &len );
flash_block_size = b.block_size;
flash_num_blocks = d.dev_size/flash_block_size;
diag_printf("FLASH: %p - %p, %d blocks of 0x%x bytes each.\n",
(void*)flash_start, (void*)(flash_end + 1), flash_num_blocks, flash_block_size);
// Verify that the testing limits are within the bounds of the
// physical device. Also verify that the size matches with
// the erase block size on the device
if ((FLASH_TEST_OFFSET > (flash_end - flash_start)) ||
((FLASH_TEST_OFFSET + FLASH_TEST_LENGTH) > (flash_end - flash_start))) {
CYG_TEST_FAIL_FINISH("FLASH test region outside physical limits");
}
if ((FLASH_TEST_LENGTH % flash_block_size) != 0) {
CYG_TEST_FAIL_FINISH("FLASH test region must be integral multiple of erase block size");
}
// Allocate two buffers large enough for the test
test_buf1 = (CYG_ADDRWORD)CYGMEM_SECTION_heap1;
test_buf2 = test_buf1 + FLASH_TEST_LENGTH;
if (CYGMEM_SECTION_heap1_SIZE < (FLASH_TEST_LENGTH * 2)) {
CYG_TEST_FAIL_FINISH("FLASH not enough heap space - reduce size of test region");
}
diag_printf("... Using test buffers at %p and %p\n", (void *)test_buf1, (void *)test_buf2);
flash_test_start = flash_start + FLASH_TEST_OFFSET;
#ifdef CYGHWR_IO_FLASH_BLOCK_LOCKING
// Unlock test
diag_printf("... Unlock test\n");
ok = true;
u.offset = flash_test_start;
u.len = FLASH_TEST_LENGTH;
len = sizeof(u);
if ((stat = cyg_io_get_config(flash_handle, CYG_IO_GET_CONFIG_FLASH_UNLOCK, &u, &len ) ) != 0 || u.flasherr != 0)
{
diag_printf("FLASH: unlock failed: %s %s\n", strerror(stat), cyg_flash_errmsg(u.flasherr));
ok = false;
}
#endif
// Erase test
diag_printf("... Erase test\n");
ok = true;
e.offset = flash_test_start;
e.len = FLASH_TEST_LENGTH;
len = sizeof(e);
if ((stat = cyg_io_get_config(flash_handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len ) ) != 0 || e.flasherr != 0)
{
diag_printf("FLASH: erase failed: %s %s\n", cyg_epcs_errmsg(stat), cyg_epcs_errmsg(e.flasherr));
ok = false;
}
len = FLASH_TEST_LENGTH;
if (ok && (stat = cyg_io_bread(flash_handle, (void *)test_buf1, &len, flash_test_start)) != 0)
{
diag_printf("FLASH: read/verify after erase failed: %s\n", cyg_epcs_errmsg(stat));
ok = false;
}
lp1 = (cyg_uint32 *)test_buf1;
for (i = 0; i < FLASH_TEST_LENGTH; i += sizeof(cyg_uint32)) {
if (*lp1++ != 0xFFFFFFFF) {
diag_printf("FLASH: non-erased data found at offset %p\n", (void*)((CYG_ADDRWORD)(lp1-1) - test_buf1));
diag_dump_buf((void *)(lp1-1), 32);
ok = false;
break;
}
}
// Try reading in little pieces
len = FLASH_TEST_LENGTH;
flash_addr = flash_test_start;
while (len > 0) {
cyg_uint32 l = 0x200;
if ((stat = cyg_io_bread(flash_handle, (void *)test_buf1, &l, flash_addr)) != CYG_FLASH_ERR_OK) {
diag_printf("FLASH: read[short]/verify after erase failed: %s\n", strerror(stat));
ok = false;
break;
}
flash_addr = flash_addr + l;
len -= l;
lp1 = (cyg_uint32 *)test_buf1;
for (i = 0; i < 0x200; i += sizeof(cyg_uint32)) {
if (*lp1++ != 0xFFFFFFFF) {
diag_printf("FLASH: non-erased data found at offset %p\n",
(cyg_uint8 *)flash_addr + (CYG_ADDRWORD)((lp1-1) - test_buf1));
diag_dump_buf((void *)(lp1-1), 32);
ok = false;
len = 0;
break;
}
}
}
if (!ok) {
CYG_TEST_INFO("FLASH erase failed");
passed = false;
}
// Simple write/verify test
diag_printf("... Write/verify test\n");
lp1 = (cyg_uint32 *)test_buf1;
for (i = 0; i < FLASH_TEST_LENGTH; i += sizeof(cyg_uint32)) {
*lp1 = (cyg_uint32)lp1;
lp1++;
}
ok = true;
len = FLASH_TEST_LENGTH;
if (ok && (stat = cyg_io_bwrite(flash_handle, (void *)test_buf1,
&len, flash_test_start)) != 0) {
diag_printf("FLASH: write failed: %s\n", strerror(stat));
ok = false;
}
len = FLASH_TEST_LENGTH;
if (ok && (stat = cyg_io_bread(flash_handle, (void *)test_buf2, &len, flash_test_start)) != CYG_FLASH_ERR_OK) {
diag_printf("FLASH: read/verify after write failed: %s\n", strerror(stat));
ok = false;
}
lp1 = (cyg_uint32 *)test_buf1;
lp2 = (cyg_uint32 *)test_buf2;
for (i = 0; i < FLASH_TEST_LENGTH; i += sizeof(cyg_uint32)) {
if (*lp2++ != *lp1++) {
diag_printf("FLASH: incorrect data found at offset %p\n", (void *)((CYG_ADDRWORD)(lp2-1) - test_buf2));
diag_dump_buf((void *)(lp2-1), 32);
ok = false;
break;
}
}
// Try reading in little pieces
len = FLASH_TEST_LENGTH;
flash_addr = flash_test_start;
lp1 = (cyg_uint32 *)test_buf1;
lp2 = (cyg_uint32 *)test_buf2;
while (len > 0) {
cyg_uint32 l = 0x200;
if ((stat = cyg_io_bread(flash_handle, (void *)lp2, &l, flash_addr)) != 0) {
diag_printf("FLASH: read[short]/verify after erase failed: %s\n", strerror(stat));
ok = false;
break;
}
flash_addr = flash_addr + l;
len -= l;
for (i = 0; i < l; i += sizeof(cyg_uint32)) {
if (*lp2++ != *lp1++) {
diag_printf("FLASH: incorrect data found at offset %p\n",
(cyg_uint8 *)flash_addr + (CYG_ADDRWORD)((lp2-1) - test_buf2));
diag_dump_buf((void *)(lp2-1), 32);
ok = false;
len = 0;
break;
}
}
}
#ifdef CYGHWR_IO_FLASH_BLOCK_LOCKING
// Lock test
diag_printf("... Lock test\n");
ok = true;
l.offset = flash_test_start;
l.len = FLASH_TEST_LENGTH;
len = sizeof(l);
if ((stat = cyg_io_get_config(flash_handle, CYG_IO_GET_CONFIG_FLASH_LOCK, &l, &len ) ) != 0 || l.flasherr != 0 )
{
diag_printf("FLASH: unlock failed: %s %s\n", strerror(stat), cyg_flash_errmsg(l.flasherr));
ok = false;
}
#endif
if (!ok) {
CYG_TEST_INFO("FLASH write/verify failed");
}
if (passed) {
CYG_TEST_PASS_FINISH("FLASH test1");
} else {
CYG_TEST_FAIL_FINISH("FLASH test1");
}
}