p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

MTD fixes for 4.13-rc5: 

Just NAND fixes (in both the core handling, and a few drivers). Notes stolen
 from Boris:
 
 Core fixes:
 - Fix data interface setup for ONFI NANDs that do not support the SET
   FEATURES command
 - Fix a kernel doc header
 - Fix potential integer overflow when retrieving timing information
   from the parameter page
 - Fix wrong OOB layout for small page NANDs
 
 Driver fixes:
 - Fix potential division-by-zero bug
 - Fix backward compat with old atmel-nand DT bindings
 - Fix ->setup_data_interface() in the atmel NAND driver
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZiOaPAAoJEFySrpd9RFgtI+oQAK048jerO6VqjwgesmgUkxc6
 sbxWlTeDcXo5FP5E81s88ywtcvI9ArQg+Oq6wLuWEejix9boJYZy9ljrmbZTTEIC
 TScyXy3ZJnZk2GdMm0XOZ9oE8BknvCcoIwbDKfLXkdW/K2jxBPWBr1M/8wLoLiOG
 WGANSjvBE0gjkItIQw9dE4U7Kr9A53nHfIzLPtRIL9p34QYioKx45vXQh/owwO6P
 hndAAuAZPwq5jEtRVJN8MvEMb8aZWQXSG7t4xHg2LULiFwe6glHicvi5ZfImvN45
 Dw3DXFaljNP+QxSV34nCkfo4Rp4sjLssNij093qUncuBOUQgMWxJtY/sVjaA79uv
 DI1iO40D1A9mWSf19GKQvW92cXpp0me+hwzsRP2njIChyJbRIF8Z6oqZCnkjKPFQ
 eCNdJy30pedAeUtkxnfvi588MmKyl9qAmYjDAhk/xaT5qj4ZaZAJLYzDanicg/F4
 bQz71F+Yocx7xPGor5gvaAqZ+UAPEbzrfmziBUQb0U4wbK6EcyRE+lGIImMl4Uir
 K6WAPySWN7Og/Zjpf4fGG+lfbLBveVYkOiuqqUnjriCaAyio+NjfD5MxIVWJIikB
 3DKwMCIk3qoayT5IHxqPgN1Uy9adl8wintZrcfPkJfBziQ+hTA9dn/aevPgQrqdG
 lx6cwAy3I/iUgDkYqOVN
 =KcS2
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-20170807' of git://git.infradead.org/linux-mtd

Pull MTD fixes from Brian Norris:
 "I missed getting these out for rc4, but here are some MTD fixes.

  Just NAND fixes (in both the core handling, and a few drivers). Notes
  stolen from Boris:

  Core fixes:

   - fix data interface setup for ONFI NANDs that do not support the SET
     FEATURES command

   - fix a kernel doc header

   - fix potential integer overflow when retrieving timing information
     from the parameter page

   - fix wrong OOB layout for small page NANDs

  Driver fixes:

   - fix potential division-by-zero bug

   - fix backward compat with old atmel-nand DT bindings

   - fix ->setup_data_interface() in the atmel NAND driver"

* tag 'for-linus-20170807' of git://git.infradead.org/linux-mtd:
  mtd: nand: atmel: Fix EDO mode check
  mtd: nand: Declare tBERS, tR and tPROG as u64 to avoid integer overflow
  mtd: nand: Fix timing setup for NANDs that do not support SET FEATURES
  mtd: nand: Fix a docs build warning
  mtd: nand: sunxi: fix potential divide-by-zero error
  nand: fix wrong default oob layout for small pages using soft ecc
  mtd: nand: atmel: Fix DT backward compatibility in pmecc.c
This commit is contained in:
Linus Torvalds 2017-08-07 18:40:18 -07:00
parent 1742c0f055 33983675fb
commit d16b9d223b
6 changed files with 27 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mtd/nand/atmel/nand-controller.c
View File

@ -1201,7 +1201,7 @@ static int atmel_smc_nand_prepare_smcconf(struct atmel_nand *nand,
* tRC < 30ns implies EDO mode. This controller does not support this
* mode.
*/
if (conf->timings.sdr.tRC_min < 30)
if (conf->timings.sdr.tRC_min < 30000)
return -ENOTSUPP;
atmel_smc_cs_conf_init(smcconf);

21
drivers/mtd/nand/atmel/pmecc.c
View File

@ -945,6 +945,7 @@ struct atmel_pmecc *devm_atmel_pmecc_get(struct device *userdev)
*/
struct platform_device *pdev = to_platform_device(userdev);
const struct atmel_pmecc_caps *caps;
const struct of_device_id *match;
/* No PMECC engine available. */
if (!of_property_read_bool(userdev->of_node,
@ -953,21 +954,11 @@ struct atmel_pmecc *devm_atmel_pmecc_get(struct device *userdev)
caps = &at91sam9g45_caps;
/*
* Try to find the NFC subnode and extract the associated caps
* from there.
*/
np = of_find_compatible_node(userdev->of_node, NULL,
"atmel,sama5d3-nfc");
if (np) {
const struct of_device_id *match;
match = of_match_node(atmel_pmecc_legacy_match, np);
if (match && match->data)
caps = match->data;
of_node_put(np);
}
/* Find the caps associated to the NAND dev node. */
match = of_match_node(atmel_pmecc_legacy_match,
userdev->of_node);
if (match && match->data)
caps = match->data;
pmecc = atmel_pmecc_create(pdev, caps, 1, 2);
}

13
drivers/mtd/nand/nand_base.c
View File

@ -65,8 +65,14 @@ static int nand_ooblayout_ecc_sp(struct mtd_info *mtd, int section,
if (!section) {
oobregion->offset = 0;
oobregion->length = 4;
if (mtd->oobsize == 16)
oobregion->length = 4;
else
oobregion->length = 3;
} else {
if (mtd->oobsize == 8)
return -ERANGE;
oobregion->offset = 6;
oobregion->length = ecc->total - 4;
}
@ -1125,7 +1131,9 @@ static int nand_setup_data_interface(struct nand_chip *chip, int chipnr)
* Ensure the timing mode has been changed on the chip side
* before changing timings on the controller side.
*/
if (chip->onfi_version) {
if (chip->onfi_version &&
(le16_to_cpu(chip->onfi_params.opt_cmd) &
ONFI_OPT_CMD_SET_GET_FEATURES)) {
u8 tmode_param[ONFI_SUBFEATURE_PARAM_LEN] = {
chip->onfi_timing_mode_default,
};
@ -2741,7 +2749,6 @@ static int nand_write_page_syndrome(struct mtd_info *mtd,
* @buf: the data to write
* @oob_required: must write chip->oob_poi to OOB
* @page: page number to write
* @cached: cached programming
* @raw: use _raw version of write_page
*/
static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,

6
drivers/mtd/nand/nand_timings.c
View File

@ -311,9 +311,9 @@ int onfi_init_data_interface(struct nand_chip *chip,
struct nand_sdr_timings *timings = &iface->timings.sdr;
/* microseconds -> picoseconds */
timings->tPROG_max = 1000000UL * le16_to_cpu(params->t_prog);
timings->tBERS_max = 1000000UL * le16_to_cpu(params->t_bers);
timings->tR_max = 1000000UL * le16_to_cpu(params->t_r);
timings->tPROG_max = 1000000ULL * le16_to_cpu(params->t_prog);
timings->tBERS_max = 1000000ULL * le16_to_cpu(params->t_bers);
timings->tR_max = 1000000ULL * le16_to_cpu(params->t_r);
/* nanoseconds -> picoseconds */
timings->tCCS_min = 1000UL * le16_to_cpu(params->t_ccs);

4
drivers/mtd/nand/sunxi_nand.c
View File

@ -1728,6 +1728,10 @@ static int sunxi_nfc_setup_data_interface(struct mtd_info *mtd, int csline,
*/
chip->clk_rate = NSEC_PER_SEC / min_clk_period;
real_clk_rate = clk_round_rate(nfc->mod_clk, chip->clk_rate);
if (real_clk_rate <= 0) {
dev_err(nfc->dev, "Unable to round clk %lu\n", chip->clk_rate);
return -EINVAL;
}
/*
* ONFI specification 3.1, paragraph 4.15.2 dictates that EDO data

6
include/linux/mtd/nand.h
View File

@ -681,10 +681,10 @@ struct nand_buffers {
* @tWW_min: WP# transition to WE# low
*/
struct nand_sdr_timings {
u32 tBERS_max;
u64 tBERS_max;
u32 tCCS_min;
u32 tPROG_max;
u32 tR_max;
u64 tPROG_max;
u64 tR_max;
u32 tALH_min;
u32 tADL_min;
u32 tALS_min;