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authorTudor Ambarus <tudor.ambarus@linaro.org>2023-04-07 09:40:58 +0300
committerTudor Ambarus <tudor.ambarus@linaro.org>2023-04-08 09:30:17 +0300
commite570f7872a34dc290014c80c7bad365d6577836b (patch)
tree60a17aa72e72abb7d89eabc2eb629095d02639f7
parent120c94a67b26e4014597fc9f872803621e7a2514 (diff)
downloadlinux-e570f7872a34dc290014c80c7bad365d6577836b.tar.xz
mtd: spi-nor: Allow post_sfdp hook to return errors
Multi die flashes like s25hl02gt need to determine the page_size at run-time by querying a configuration register for each die. Since the number of dice is determined in an optional SFDP table, SCCR MC, the page size configuration must be done in the post_sfdp hook. Allow post_sfdp to return errors, as reading the configuration register might return errors. Link: https://lore.kernel.org/r/924ab710f128448ec62537cfbb377336e390043c.1680849425.git.Takahiro.Kuwano@infineon.com Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
-rw-r--r--drivers/mtd/spi-nor/core.h2
-rw-r--r--drivers/mtd/spi-nor/micron-st.c4
-rw-r--r--drivers/mtd/spi-nor/sfdp.c17
-rw-r--r--drivers/mtd/spi-nor/spansion.c12
4 files changed, 25 insertions, 10 deletions
diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h
index 8cfa82ed06c7..a9e5e091547d 100644
--- a/drivers/mtd/spi-nor/core.h
+++ b/drivers/mtd/spi-nor/core.h
@@ -426,7 +426,7 @@ struct spi_nor_fixups {
int (*post_bfpt)(struct spi_nor *nor,
const struct sfdp_parameter_header *bfpt_header,
const struct sfdp_bfpt *bfpt);
- void (*post_sfdp)(struct spi_nor *nor);
+ int (*post_sfdp)(struct spi_nor *nor);
void (*late_init)(struct spi_nor *nor);
};
diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c
index a6f080112a51..4b919756a205 100644
--- a/drivers/mtd/spi-nor/micron-st.c
+++ b/drivers/mtd/spi-nor/micron-st.c
@@ -131,7 +131,7 @@ static void mt35xu512aba_default_init(struct spi_nor *nor)
nor->params->octal_dtr_enable = micron_st_nor_octal_dtr_enable;
}
-static void mt35xu512aba_post_sfdp_fixup(struct spi_nor *nor)
+static int mt35xu512aba_post_sfdp_fixup(struct spi_nor *nor)
{
/* Set the Fast Read settings. */
nor->params->hwcaps.mask |= SNOR_HWCAPS_READ_8_8_8_DTR;
@@ -149,6 +149,8 @@ static void mt35xu512aba_post_sfdp_fixup(struct spi_nor *nor)
* disable it.
*/
nor->params->quad_enable = NULL;
+
+ return 0;
}
static const struct spi_nor_fixups mt35xu512aba_fixups = {
diff --git a/drivers/mtd/spi-nor/sfdp.c b/drivers/mtd/spi-nor/sfdp.c
index 69e47c9778a2..e184b67f3c9f 100644
--- a/drivers/mtd/spi-nor/sfdp.c
+++ b/drivers/mtd/spi-nor/sfdp.c
@@ -1260,14 +1260,21 @@ out:
* Used to tweak various flash parameters when information provided by the SFDP
* tables are wrong.
*/
-static void spi_nor_post_sfdp_fixups(struct spi_nor *nor)
+static int spi_nor_post_sfdp_fixups(struct spi_nor *nor)
{
+ int ret;
+
if (nor->manufacturer && nor->manufacturer->fixups &&
- nor->manufacturer->fixups->post_sfdp)
- nor->manufacturer->fixups->post_sfdp(nor);
+ nor->manufacturer->fixups->post_sfdp) {
+ ret = nor->manufacturer->fixups->post_sfdp(nor);
+ if (ret)
+ return ret;
+ }
if (nor->info->fixups && nor->info->fixups->post_sfdp)
- nor->info->fixups->post_sfdp(nor);
+ return nor->info->fixups->post_sfdp(nor);
+
+ return 0;
}
/**
@@ -1477,7 +1484,7 @@ int spi_nor_parse_sfdp(struct spi_nor *nor)
}
}
- spi_nor_post_sfdp_fixups(nor);
+ err = spi_nor_post_sfdp_fixups(nor);
exit:
kfree(param_headers);
return err;
diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c
index c937f0ac61de..519fdad79a19 100644
--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -370,7 +370,7 @@ s25fs256t_post_bfpt_fixup(struct spi_nor *nor,
return cypress_nor_get_page_size(nor);
}
-static void s25fs256t_post_sfdp_fixup(struct spi_nor *nor)
+static int s25fs256t_post_sfdp_fixup(struct spi_nor *nor)
{
struct spi_nor_flash_parameter *params = nor->params;
@@ -379,6 +379,8 @@ static void s25fs256t_post_sfdp_fixup(struct spi_nor *nor)
spi_nor_set_pp_settings(&params->page_programs[SNOR_CMD_PP_1_1_4],
SPINOR_OP_PP_1_1_4_4B,
SNOR_PROTO_1_1_4);
+
+ return 0;
}
static void s25fs256t_late_init(struct spi_nor *nor)
@@ -409,7 +411,7 @@ s25hx_t_post_bfpt_fixup(struct spi_nor *nor,
return cypress_nor_get_page_size(nor);
}
-static void s25hx_t_post_sfdp_fixup(struct spi_nor *nor)
+static int s25hx_t_post_sfdp_fixup(struct spi_nor *nor)
{
struct spi_nor_erase_type *erase_type =
nor->params->erase_map.erase_type;
@@ -431,6 +433,8 @@ static void s25hx_t_post_sfdp_fixup(struct spi_nor *nor)
break;
}
}
+
+ return 0;
}
static void s25hx_t_late_init(struct spi_nor *nor)
@@ -463,7 +467,7 @@ static int cypress_nor_octal_dtr_enable(struct spi_nor *nor, bool enable)
cypress_nor_octal_dtr_dis(nor);
}
-static void s28hx_t_post_sfdp_fixup(struct spi_nor *nor)
+static int s28hx_t_post_sfdp_fixup(struct spi_nor *nor)
{
/*
* On older versions of the flash the xSPI Profile 1.0 table has the
@@ -489,6 +493,8 @@ static void s28hx_t_post_sfdp_fixup(struct spi_nor *nor)
* actual value for that is 4.
*/
nor->params->rdsr_addr_nbytes = 4;
+
+ return 0;
}
static int s28hx_t_post_bfpt_fixup(struct spi_nor *nor,