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mtd: nand: davinci: adjust DT properties to MTD generic

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The properties davinci-ecc-mode, davinci-nand-use-bbt, davinci-nand-buswidth
are MTD generic. Correct names for them are: nand-ecc-mode, nand-on-flash-bbt,
nand-bus-width accordingly. So rename them in dts and documentation.

Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Taras Kondratiuk <taras@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Ivan Khoronzhuk 2013-12-17 15:37:56 +02:00 committed by Brian Norris
parent 9ba51cff55
commit 75be1ea26b
2 changed files with 30 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
Documentation/devicetree/bindings/mtd/davinci-nand.txt
View file

@ -37,7 +37,7 @@ Recommended properties :
- ti,davinci-mask-chipsel: mask for chipselect address. Needed to mask
addresses for given chipselect.
- ti,davinci-ecc-mode: operation mode of the NAND ecc mode. ECC mode
- nand-ecc-mode: operation mode of the NAND ecc mode. ECC mode
valid values for davinci driver:
- "none"
- "soft"
@ -45,10 +45,25 @@ Recommended properties :
- ti,davinci-ecc-bits: used ECC bits, currently supported 1 or 4.
- ti,davinci-nand-buswidth: buswidth 8 or 16.
- nand-bus-width: buswidth 8 or 16. If not present 8.
- nand-on-flash-bbt: use flash based bad block table support. OOB
identifier is saved in OOB area. If not present
false.
Deprecated properties:
- ti,davinci-ecc-mode: operation mode of the NAND ecc mode. ECC mode
valid values for davinci driver:
- "none"
- "soft"
- "hw"
- ti,davinci-nand-buswidth: buswidth 8 or 16. If not present 8.
- ti,davinci-nand-use-bbt: use flash based bad block table support. OOB
identifier is saved in OOB area.
identifier is saved in OOB area. If not present
false.
Nand device bindings may contain additional sub-nodes describing partitions of
the address space. See partition.txt for more detail. The NAND Flash timing
@ -66,9 +81,9 @@ nand_cs3@62000000 {
ti,davinci-mask-ale = <0>;
ti,davinci-mask-cle = <0>;
ti,davinci-mask-chipsel = <0>;
ti,davinci-ecc-mode = "hw";
nand-ecc-mode = "hw";
ti,davinci-ecc-bits = <4>;
ti,davinci-nand-use-bbt;
nand-on-flash-bbt;
partition@180000 {
label = "ubifs";

14
drivers/mtd/nand/davinci_nand.c
View file

@ -35,6 +35,7 @@
#include <linux/slab.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/of_mtd.h>
#include <linux/platform_data/mtd-davinci.h>
#include <linux/platform_data/mtd-davinci-aemif.h>
@ -534,7 +535,6 @@ static struct davinci_nand_pdata
struct davinci_nand_pdata *pdata;
const char *mode;
u32 prop;
int len;
pdata = devm_kzalloc(&pdev->dev,
sizeof(struct davinci_nand_pdata),
@ -558,6 +558,8 @@ static struct davinci_nand_pdata
"ti,davinci-mask-chipsel", &prop))
pdata->mask_chipsel = prop;
if (!of_property_read_string(pdev->dev.of_node,
"nand-ecc-mode", &mode) ||
!of_property_read_string(pdev->dev.of_node,
"ti,davinci-ecc-mode", &mode)) {
if (!strncmp("none", mode, 4))
pdata->ecc_mode = NAND_ECC_NONE;
@ -569,12 +571,16 @@ static struct davinci_nand_pdata
if (!of_property_read_u32(pdev->dev.of_node,
"ti,davinci-ecc-bits", &prop))
pdata->ecc_bits = prop;
if (!of_property_read_u32(pdev->dev.of_node,
prop = of_get_nand_bus_width(pdev->dev.of_node);
if (0 < prop || !of_property_read_u32(pdev->dev.of_node,
"ti,davinci-nand-buswidth", &prop))
if (prop == 16)
pdata->options |= NAND_BUSWIDTH_16;
if (of_find_property(pdev->dev.of_node,
"ti,davinci-nand-use-bbt", &len))
if (of_property_read_bool(pdev->dev.of_node,
"nand-on-flash-bbt") ||
of_property_read_bool(pdev->dev.of_node,
"ti,davinci-nand-use-bbt"))
pdata->bbt_options = NAND_BBT_USE_FLASH;
}