* [PATCH] mtd: rawnand: fsl_elbc: Fix detection when nand_scan_ident() has not selected ecc.mode
@ 2022-05-11 18:24 Pali Rohár
2022-06-20 7:08 ` Peng Fan (OSS)
0 siblings, 1 reply; 4+ messages in thread
From: Pali Rohár @ 2022-05-11 18:24 UTC (permalink / raw)
To: Priyanka Jain, Wolfgang Denk, Sinan Akman; +Cc: u-boot
ecc.mode is set to 0 (aliased to NAND_ECC_NONE) either when function
nand_scan_ident() has not selected ecc.mode or when it selected it to none
ecc mode.
Distinguish between these two states by checking of node property
"nand-ecc-mode" which function nand_scan_ident() uses for filling ecc.mode.
This change fixes usage of none ecc mode if it is specified in DTS file.
Fixes: c9ea9019c5aa ("mtd: rawnand: fsl_elbc: Use ECC configuration from device tree")
Signed-off-by: Pali Rohár <pali@kernel.org>
---
drivers/mtd/nand/raw/fsl_elbc_nand.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c
index b0e3eb607ed4..8e14739b3ee9 100644
--- a/drivers/mtd/nand/raw/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c
@@ -745,7 +745,8 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr, struct udevice *dev)
return ret;
/* If nand_scan_ident() has not selected ecc.mode, do it now */
- if (nand->ecc.mode == NAND_ECC_NONE) {
+ if (nand->ecc.mode == 0 &&
+ !ofnode_read_string(nand->flash_node, "nand-ecc-mode")) {
/* If CS Base Register selects full hardware ECC then use it */
if ((br & BR_DECC) == BR_DECC_CHK_GEN) {
nand->ecc.mode = NAND_ECC_HW;
--
2.20.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] mtd: rawnand: fsl_elbc: Fix detection when nand_scan_ident() has not selected ecc.mode
2022-05-11 18:24 [PATCH] mtd: rawnand: fsl_elbc: Fix detection when nand_scan_ident() has not selected ecc.mode Pali Rohár
@ 2022-06-20 7:08 ` Peng Fan (OSS)
2022-06-20 11:02 ` Pali Rohár
0 siblings, 1 reply; 4+ messages in thread
From: Peng Fan (OSS) @ 2022-06-20 7:08 UTC (permalink / raw)
To: Pali Rohár, Priyanka Jain, Wolfgang Denk, Sinan Akman; +Cc: u-boot
在 2022/5/12 2:24, Pali Rohár 写道:
> ecc.mode is set to 0 (aliased to NAND_ECC_NONE) either when function
> nand_scan_ident() has not selected ecc.mode or when it selected it to none
> ecc mode.
>
> Distinguish between these two states by checking of node property
> "nand-ecc-mode" which function nand_scan_ident() uses for filling ecc.mode.
>
> This change fixes usage of none ecc mode if it is specified in DTS file.
>
> Fixes: c9ea9019c5aa ("mtd: rawnand: fsl_elbc: Use ECC configuration from device tree")
> Signed-off-by: Pali Rohár <pali@kernel.org>
powerpc: + ids8313
+===================== WARNING ======================
+This board does not use CONFIG_WDT (Driver Model
+for DM watchdog). Please update the board to use
+CONFIG_WDT before the v2019.10 release. Failure to
+update by the deadline may result in board removal.
+See doc/develop/driver-model/migration.rst for more info.
+====================================================
+This board does not use CONFIG_DM_ETH (Driver Model
+for Ethernet drivers). Please update the board to use
+CONFIG_DM_ETH before the v2020.07 release. Failure to
+This board does not use CONFIG_DM_I2C (Driver Model
+for I2C drivers). Please update the board to use
+CONFIG_DM_I2C before the v2022.04 release. Failure to
+This board does not use CONFIG_DM_SERIAL (Driver Model
+for Serial drivers). Please update the board to use
+CONFIG_DM_SERIAL before the v2023.04 release. Failure to
+powerpc-linux-ld.bfd: drivers/mtd/nand/raw/fsl_elbc_nand.o: in function
`fsl_elbc_chip_init':
+drivers/mtd/nand/raw/fsl_elbc_nand.c:749: undefined reference to
`ofnode_read_string'
+make[1]: *** [Makefile:1813: u-boot] Error 1
+make: *** [Makefile:177: sub-make] Error 2
Build fail.
Regards,
Peng.
> ---
> drivers/mtd/nand/raw/fsl_elbc_nand.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c
> index b0e3eb607ed4..8e14739b3ee9 100644
> --- a/drivers/mtd/nand/raw/fsl_elbc_nand.c
> +++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c
> @@ -745,7 +745,8 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr, struct udevice *dev)
> return ret;
>
> /* If nand_scan_ident() has not selected ecc.mode, do it now */
> - if (nand->ecc.mode == NAND_ECC_NONE) {
> + if (nand->ecc.mode == 0 &&
> + !ofnode_read_string(nand->flash_node, "nand-ecc-mode")) {
> /* If CS Base Register selects full hardware ECC then use it */
> if ((br & BR_DECC) == BR_DECC_CHK_GEN) {
> nand->ecc.mode = NAND_ECC_HW;
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] mtd: rawnand: fsl_elbc: Fix detection when nand_scan_ident() has not selected ecc.mode
2022-06-20 7:08 ` Peng Fan (OSS)
@ 2022-06-20 11:02 ` Pali Rohár
2022-06-20 11:07 ` [PATCH v2] " Pali Rohár
0 siblings, 1 reply; 4+ messages in thread
From: Pali Rohár @ 2022-06-20 11:02 UTC (permalink / raw)
To: Peng Fan (OSS); +Cc: Priyanka Jain, Wolfgang Denk, Sinan Akman, u-boot
On Monday 20 June 2022 15:08:43 Peng Fan (OSS) wrote:
> 在 2022/5/12 2:24, Pali Rohár 写道:
> > ecc.mode is set to 0 (aliased to NAND_ECC_NONE) either when function
> > nand_scan_ident() has not selected ecc.mode or when it selected it to none
> > ecc mode.
> >
> > Distinguish between these two states by checking of node property
> > "nand-ecc-mode" which function nand_scan_ident() uses for filling ecc.mode.
> >
> > This change fixes usage of none ecc mode if it is specified in DTS file.
> >
> > Fixes: c9ea9019c5aa ("mtd: rawnand: fsl_elbc: Use ECC configuration from device tree")
> > Signed-off-by: Pali Rohár <pali@kernel.org>
>
> powerpc: + ids8313
> +===================== WARNING ======================
> +This board does not use CONFIG_WDT (Driver Model
> +for DM watchdog). Please update the board to use
> +CONFIG_WDT before the v2019.10 release. Failure to
> +update by the deadline may result in board removal.
> +See doc/develop/driver-model/migration.rst for more info.
> +====================================================
> +This board does not use CONFIG_DM_ETH (Driver Model
> +for Ethernet drivers). Please update the board to use
> +CONFIG_DM_ETH before the v2020.07 release. Failure to
> +This board does not use CONFIG_DM_I2C (Driver Model
> +for I2C drivers). Please update the board to use
> +CONFIG_DM_I2C before the v2022.04 release. Failure to
> +This board does not use CONFIG_DM_SERIAL (Driver Model
> +for Serial drivers). Please update the board to use
> +CONFIG_DM_SERIAL before the v2023.04 release. Failure to
> +powerpc-linux-ld.bfd: drivers/mtd/nand/raw/fsl_elbc_nand.o: in function
> `fsl_elbc_chip_init':
> +drivers/mtd/nand/raw/fsl_elbc_nand.c:749: undefined reference to
> `ofnode_read_string'
Uff... I see that other nand code guards ofnode_read_string() calls via
#if CONFIG_IS_ENABLED(OF_CONTROL). And seems that same preprocessor
guard is needed also here in fsl driver.
I will send v2 patch with this guard.
> +make[1]: *** [Makefile:1813: u-boot] Error 1
> +make: *** [Makefile:177: sub-make] Error 2
>
> Build fail.
>
> Regards,
> Peng.
>
> > ---
> > drivers/mtd/nand/raw/fsl_elbc_nand.c | 3 ++-
> > 1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c
> > index b0e3eb607ed4..8e14739b3ee9 100644
> > --- a/drivers/mtd/nand/raw/fsl_elbc_nand.c
> > +++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c
> > @@ -745,7 +745,8 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr, struct udevice *dev)
> > return ret;
> > /* If nand_scan_ident() has not selected ecc.mode, do it now */
> > - if (nand->ecc.mode == NAND_ECC_NONE) {
> > + if (nand->ecc.mode == 0 &&
> > + !ofnode_read_string(nand->flash_node, "nand-ecc-mode")) {
> > /* If CS Base Register selects full hardware ECC then use it */
> > if ((br & BR_DECC) == BR_DECC_CHK_GEN) {
> > nand->ecc.mode = NAND_ECC_HW;
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH v2] mtd: rawnand: fsl_elbc: Fix detection when nand_scan_ident() has not selected ecc.mode
2022-06-20 11:02 ` Pali Rohár
@ 2022-06-20 11:07 ` Pali Rohár
0 siblings, 0 replies; 4+ messages in thread
From: Pali Rohár @ 2022-06-20 11:07 UTC (permalink / raw)
To: Peng Fan (OSS); +Cc: Priyanka Jain, Wolfgang Denk, Sinan Akman, u-boot
ecc.mode is set to 0 (aliased to NAND_ECC_NONE) either when function
nand_scan_ident() has not selected ecc.mode or when it selected it to none
ecc mode.
Distinguish between these two states by checking of node property
"nand-ecc-mode" which function nand_scan_ident() uses for filling ecc.mode.
This change fixes usage of none ecc mode if it is specified in DTS file.
Fixes: c9ea9019c5aa ("mtd: rawnand: fsl_elbc: Use ECC configuration from device tree")
Signed-off-by: Pali Rohár <pali@kernel.org>
---
Changes in v2:
* Add guard for ofnode_read_string()
---
drivers/mtd/nand/raw/fsl_elbc_nand.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c
index e734139b5ea5..5d50302eefbe 100644
--- a/drivers/mtd/nand/raw/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c
@@ -744,7 +744,11 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr, ofnode flash_node)
return ret;
/* If nand_scan_ident() has not selected ecc.mode, do it now */
- if (nand->ecc.mode == NAND_ECC_NONE) {
+ if (nand->ecc.mode == 0
+#if CONFIG_IS_ENABLED(OF_CONTROL)
+ && !ofnode_read_string(nand->flash_node, "nand-ecc-mode")
+#endif
+ ) {
/* If CS Base Register selects full hardware ECC then use it */
if ((br & BR_DECC) == BR_DECC_CHK_GEN) {
nand->ecc.mode = NAND_ECC_HW;
--
2.20.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-06-20 11:07 UTC | newest]
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2022-05-11 18:24 [PATCH] mtd: rawnand: fsl_elbc: Fix detection when nand_scan_ident() has not selected ecc.mode Pali Rohár
2022-06-20 7:08 ` Peng Fan (OSS)
2022-06-20 11:02 ` Pali Rohár
2022-06-20 11:07 ` [PATCH v2] " Pali Rohár
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