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CFI NOR flash: fix write timeout units. 

Write timeouts are expressed in microseconds. Milliseconds are 1000 times
longer than microseconds, not 1000 times shorter.

Before (Intel 28F128J3D75):

CFI conformant FLASH (16 x 16)  Size: 16 MB in 128 Sectors
  Intel Extended command set, Manufacturer ID: 0x89, Device ID: 0x18
  Erase timeout: 4096 ms, write timeout: 256000 ms
  Buffer write timeout: 1024000 ms, buffer size: 32 bytes

After:
  ...
  Erase timeout: 4096 ms, write timeout: 256 us
  Buffer write timeout: 1024 us, buffer size: 32 bytes

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Krzysztof Halasa 2011-01-16 22:40:41 +01:00 committed by Sascha Hauer
parent cfa9144fc1
commit 04e89d094a
1 changed files with 8 additions and 10 deletions
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18
drivers/nor/cfi_flash.c
View File

@ -424,14 +424,12 @@ static ulong flash_get_size (struct flash_info *info, ulong base)
/* multiply the size by the number of chips */
info->size = (1 << qry.dev_size) * size_ratio;
info->buffer_size = (1 << le16_to_cpu(qry.max_buf_write_size));
tmp = 1 << qry.block_erase_timeout_typ;
info->erase_blk_tout = (tmp * (1 << qry.block_erase_timeout_max));
tmp = (1 << qry.buf_write_timeout_typ) *
(1 << qry.buf_write_timeout_max);
info->buffer_write_tout = tmp * 1000;
tmp = (1 << qry.word_write_timeout_typ) *
(1 << qry.word_write_timeout_max);
info->write_tout = tmp * 1000;
info->erase_blk_tout = 1 << (qry.block_erase_timeout_typ +
qry.block_erase_timeout_max);
info->buffer_write_tout = 1 << (qry.buf_write_timeout_typ +
qry.buf_write_timeout_max);
info->write_tout = 1 << (qry.word_write_timeout_typ +
qry.word_write_timeout_max);
info->flash_id = FLASH_MAN_CFI;
if ((info->interface == FLASH_CFI_X8X16) && (info->chipwidth == FLASH_CFI_BY8)) {
info->portwidth >>= 1; /* XXX - Need to test on x8/x16 in parallel. */
@ -699,11 +697,11 @@ static void cfi_info (struct device_d* dev)
if (info->device_id == 0x7E) {
printf("%04X", info->device_id2);
}
printf ("\n Erase timeout: %ld ms, write timeout: %ld ms\n",
printf ("\n Erase timeout: %ld ms, write timeout: %ld us\n",
info->erase_blk_tout,
info->write_tout);
if (info->buffer_size > 1) {
printf (" Buffer write timeout: %ld ms, buffer size: %d bytes\n",
printf (" Buffer write timeout: %ld us, buffer size: %d bytes\n",
info->buffer_write_tout,
info->buffer_size);
}