* [PATCH v2] mtd/gpmi : add gpmi support for mx6q
@ 2012-02-14 2:36 Huang Shijie
2012-02-16 5:44 ` Huang Shijie
0 siblings, 1 reply; 2+ messages in thread
From: Huang Shijie @ 2012-02-14 2:36 UTC (permalink / raw)
To: artem.bityutskiy; +Cc: Huang Shijie, linux-mtd, w.sang, linux-arm-kernel
add gpmi support to mx6q.
Signed-off-by: Huang Shijie <b32955@freescale.com>
---
v1 --> v2:
create this patch based on l2-mtd.git tree.
drivers/mtd/nand/gpmi-nand/bch-regs.h | 42 ++++++++++++++++++++++++-------
drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 14 ++++++----
drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 3 ++
drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 2 +
4 files changed, 45 insertions(+), 16 deletions(-)
diff --git a/drivers/mtd/nand/gpmi-nand/bch-regs.h b/drivers/mtd/nand/gpmi-nand/bch-regs.h
index 4effb8c..a092451 100644
--- a/drivers/mtd/nand/gpmi-nand/bch-regs.h
+++ b/drivers/mtd/nand/gpmi-nand/bch-regs.h
@@ -51,15 +51,26 @@
#define BP_BCH_FLASH0LAYOUT0_ECC0 12
#define BM_BCH_FLASH0LAYOUT0_ECC0 (0xf << BP_BCH_FLASH0LAYOUT0_ECC0)
-#define BF_BCH_FLASH0LAYOUT0_ECC0(v) \
- (((v) << BP_BCH_FLASH0LAYOUT0_ECC0) & BM_BCH_FLASH0LAYOUT0_ECC0)
+#define MX6Q_BP_BCH_FLASH0LAYOUT0_ECC0 11
+#define MX6Q_BM_BCH_FLASH0LAYOUT0_ECC0 (0x1f << MX6Q_BP_BCH_FLASH0LAYOUT0_ECC0)
+#define BF_BCH_FLASH0LAYOUT0_ECC0(v, x) \
+ (GPMI_IS_MX6Q(x) \
+ ? (((v) << MX6Q_BP_BCH_FLASH0LAYOUT0_ECC0) \
+ & MX6Q_BM_BCH_FLASH0LAYOUT0_ECC0) \
+ : (((v) << BP_BCH_FLASH0LAYOUT0_ECC0) \
+ & BM_BCH_FLASH0LAYOUT0_ECC0) \
+ )
#define BP_BCH_FLASH0LAYOUT0_DATA0_SIZE 0
#define BM_BCH_FLASH0LAYOUT0_DATA0_SIZE \
(0xfff << BP_BCH_FLASH0LAYOUT0_DATA0_SIZE)
-#define BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(v) \
- (((v) << BP_BCH_FLASH0LAYOUT0_DATA0_SIZE)\
- & BM_BCH_FLASH0LAYOUT0_DATA0_SIZE)
+#define MX6Q_BM_BCH_FLASH0LAYOUT0_DATA0_SIZE \
+ (0x3ff << BP_BCH_FLASH0LAYOUT0_DATA0_SIZE)
+#define BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(v, x) \
+ (GPMI_IS_MX6Q(x) \
+ ? (((v) >> 2) & MX6Q_BM_BCH_FLASH0LAYOUT0_DATA0_SIZE) \
+ : ((v) & BM_BCH_FLASH0LAYOUT0_DATA0_SIZE) \
+ )
#define HW_BCH_FLASH0LAYOUT1 0x00000090
@@ -72,13 +83,24 @@
#define BP_BCH_FLASH0LAYOUT1_ECCN 12
#define BM_BCH_FLASH0LAYOUT1_ECCN (0xf << BP_BCH_FLASH0LAYOUT1_ECCN)
-#define BF_BCH_FLASH0LAYOUT1_ECCN(v) \
- (((v) << BP_BCH_FLASH0LAYOUT1_ECCN) & BM_BCH_FLASH0LAYOUT1_ECCN)
+#define MX6Q_BP_BCH_FLASH0LAYOUT1_ECCN 11
+#define MX6Q_BM_BCH_FLASH0LAYOUT1_ECCN (0x1f << MX6Q_BP_BCH_FLASH0LAYOUT1_ECCN)
+#define BF_BCH_FLASH0LAYOUT1_ECCN(v, x) \
+ (GPMI_IS_MX6Q(x) \
+ ? (((v) << MX6Q_BP_BCH_FLASH0LAYOUT1_ECCN) \
+ & MX6Q_BM_BCH_FLASH0LAYOUT1_ECCN) \
+ : (((v) << BP_BCH_FLASH0LAYOUT1_ECCN) \
+ & BM_BCH_FLASH0LAYOUT1_ECCN) \
+ )
#define BP_BCH_FLASH0LAYOUT1_DATAN_SIZE 0
#define BM_BCH_FLASH0LAYOUT1_DATAN_SIZE \
(0xfff << BP_BCH_FLASH0LAYOUT1_DATAN_SIZE)
-#define BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(v) \
- (((v) << BP_BCH_FLASH0LAYOUT1_DATAN_SIZE) \
- & BM_BCH_FLASH0LAYOUT1_DATAN_SIZE)
+#define MX6Q_BM_BCH_FLASH0LAYOUT1_DATAN_SIZE \
+ (0x3ff << BP_BCH_FLASH0LAYOUT1_DATAN_SIZE)
+#define BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(v, x) \
+ (GPMI_IS_MX6Q(x) \
+ ? (((v) >> 2) & MX6Q_BM_BCH_FLASH0LAYOUT1_DATAN_SIZE) \
+ : ((v) & BM_BCH_FLASH0LAYOUT1_DATAN_SIZE) \
+ )
#endif
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
index 7db6555..cbcf022 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -223,13 +223,13 @@ int bch_set_geometry(struct gpmi_nand_data *this)
/* Configure layout 0. */
writel(BF_BCH_FLASH0LAYOUT0_NBLOCKS(block_count)
| BF_BCH_FLASH0LAYOUT0_META_SIZE(metadata_size)
- | BF_BCH_FLASH0LAYOUT0_ECC0(ecc_strength)
- | BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(block_size),
+ | BF_BCH_FLASH0LAYOUT0_ECC0(ecc_strength, this)
+ | BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(block_size, this),
r->bch_regs + HW_BCH_FLASH0LAYOUT0);
writel(BF_BCH_FLASH0LAYOUT1_PAGE_SIZE(page_size)
- | BF_BCH_FLASH0LAYOUT1_ECCN(ecc_strength)
- | BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(block_size),
+ | BF_BCH_FLASH0LAYOUT1_ECCN(ecc_strength, this)
+ | BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(block_size, this),
r->bch_regs + HW_BCH_FLASH0LAYOUT1);
/* Set *all* chip selects to use layout 0. */
@@ -803,7 +803,8 @@ int gpmi_is_ready(struct gpmi_nand_data *this, unsigned chip)
if (GPMI_IS_MX23(this)) {
mask = MX23_BM_GPMI_DEBUG_READY0 << chip;
reg = readl(r->gpmi_regs + HW_GPMI_DEBUG);
- } else if (GPMI_IS_MX28(this)) {
+ } else if (GPMI_IS_MX28(this) || GPMI_IS_MX6Q(this)) {
+ /* MX28 shares the same R/B register as MX6Q. */
mask = MX28_BF_GPMI_STAT_READY_BUSY(1 << chip);
reg = readl(r->gpmi_regs + HW_GPMI_STAT);
} else
@@ -1055,8 +1056,9 @@ int gpmi_read_page(struct gpmi_nand_data *this,
| BF_GPMI_CTRL0_ADDRESS(address)
| BF_GPMI_CTRL0_XFER_COUNT(geo->page_size);
pio[1] = 0;
+ pio[2] = 0; /* Set GPMI_HW_GPMI_ECCCTRL, disable the BCH. */
desc = channel->device->device_prep_slave_sg(channel,
- (struct scatterlist *)pio, 2,
+ (struct scatterlist *)pio, 3,
DMA_TRANS_NONE, 1);
if (!desc) {
pr_err("step 3 error\n");
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index f39f83e..cfcc0eb 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1582,6 +1582,9 @@ static const struct platform_device_id gpmi_ids[] = {
}, {
.name = "imx28-gpmi-nand",
.driver_data = IS_MX28,
+ }, {
+ .name = "imx6q-gpmi-nand",
+ .driver_data = IS_MX6Q,
}, {},
};
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
index e023bcc..c93b0ae 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
@@ -268,6 +268,8 @@ extern int gpmi_read_page(struct gpmi_nand_data *,
/* Use the platform_id to distinguish different Archs. */
#define IS_MX23 0x1
#define IS_MX28 0x2
+#define IS_MX6Q 0x8
#define GPMI_IS_MX23(x) ((x)->pdev->id_entry->driver_data == IS_MX23)
#define GPMI_IS_MX28(x) ((x)->pdev->id_entry->driver_data == IS_MX28)
+#define GPMI_IS_MX6Q(x) ((x)->pdev->id_entry->driver_data == IS_MX6Q)
#endif
--
1.7.0.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] mtd/gpmi : add gpmi support for mx6q
2012-02-14 2:36 [PATCH v2] mtd/gpmi : add gpmi support for mx6q Huang Shijie
@ 2012-02-16 5:44 ` Huang Shijie
0 siblings, 0 replies; 2+ messages in thread
From: Huang Shijie @ 2012-02-16 5:44 UTC (permalink / raw)
To: Huang Shijie; +Cc: artem.bityutskiy, linux-mtd, w.sang, linux-arm-kernel
Hi Artem:
Please ignore this patch. I will send out the new version when the
mxs-dma patch
is merged.
thanks .
Huang Shijie
> add gpmi support to mx6q.
>
> Signed-off-by: Huang Shijie <b32955@freescale.com>
> ---
> v1 --> v2:
> create this patch based on l2-mtd.git tree.
>
>
> drivers/mtd/nand/gpmi-nand/bch-regs.h | 42 ++++++++++++++++++++++++-------
> drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 14 ++++++----
> drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 3 ++
> drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 2 +
> 4 files changed, 45 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/mtd/nand/gpmi-nand/bch-regs.h b/drivers/mtd/nand/gpmi-nand/bch-regs.h
> index 4effb8c..a092451 100644
> --- a/drivers/mtd/nand/gpmi-nand/bch-regs.h
> +++ b/drivers/mtd/nand/gpmi-nand/bch-regs.h
> @@ -51,15 +51,26 @@
>
> #define BP_BCH_FLASH0LAYOUT0_ECC0 12
> #define BM_BCH_FLASH0LAYOUT0_ECC0 (0xf << BP_BCH_FLASH0LAYOUT0_ECC0)
> -#define BF_BCH_FLASH0LAYOUT0_ECC0(v) \
> - (((v) << BP_BCH_FLASH0LAYOUT0_ECC0) & BM_BCH_FLASH0LAYOUT0_ECC0)
> +#define MX6Q_BP_BCH_FLASH0LAYOUT0_ECC0 11
> +#define MX6Q_BM_BCH_FLASH0LAYOUT0_ECC0 (0x1f << MX6Q_BP_BCH_FLASH0LAYOUT0_ECC0)
> +#define BF_BCH_FLASH0LAYOUT0_ECC0(v, x) \
> + (GPMI_IS_MX6Q(x) \
> + ? (((v) << MX6Q_BP_BCH_FLASH0LAYOUT0_ECC0) \
> + & MX6Q_BM_BCH_FLASH0LAYOUT0_ECC0) \
> + : (((v) << BP_BCH_FLASH0LAYOUT0_ECC0) \
> + & BM_BCH_FLASH0LAYOUT0_ECC0) \
> + )
>
> #define BP_BCH_FLASH0LAYOUT0_DATA0_SIZE 0
> #define BM_BCH_FLASH0LAYOUT0_DATA0_SIZE \
> (0xfff << BP_BCH_FLASH0LAYOUT0_DATA0_SIZE)
> -#define BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(v) \
> - (((v) << BP_BCH_FLASH0LAYOUT0_DATA0_SIZE)\
> - & BM_BCH_FLASH0LAYOUT0_DATA0_SIZE)
> +#define MX6Q_BM_BCH_FLASH0LAYOUT0_DATA0_SIZE \
> + (0x3ff << BP_BCH_FLASH0LAYOUT0_DATA0_SIZE)
> +#define BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(v, x) \
> + (GPMI_IS_MX6Q(x) \
> + ? (((v) >> 2) & MX6Q_BM_BCH_FLASH0LAYOUT0_DATA0_SIZE) \
> + : ((v) & BM_BCH_FLASH0LAYOUT0_DATA0_SIZE) \
> + )
>
> #define HW_BCH_FLASH0LAYOUT1 0x00000090
>
> @@ -72,13 +83,24 @@
>
> #define BP_BCH_FLASH0LAYOUT1_ECCN 12
> #define BM_BCH_FLASH0LAYOUT1_ECCN (0xf << BP_BCH_FLASH0LAYOUT1_ECCN)
> -#define BF_BCH_FLASH0LAYOUT1_ECCN(v) \
> - (((v) << BP_BCH_FLASH0LAYOUT1_ECCN) & BM_BCH_FLASH0LAYOUT1_ECCN)
> +#define MX6Q_BP_BCH_FLASH0LAYOUT1_ECCN 11
> +#define MX6Q_BM_BCH_FLASH0LAYOUT1_ECCN (0x1f << MX6Q_BP_BCH_FLASH0LAYOUT1_ECCN)
> +#define BF_BCH_FLASH0LAYOUT1_ECCN(v, x) \
> + (GPMI_IS_MX6Q(x) \
> + ? (((v) << MX6Q_BP_BCH_FLASH0LAYOUT1_ECCN) \
> + & MX6Q_BM_BCH_FLASH0LAYOUT1_ECCN) \
> + : (((v) << BP_BCH_FLASH0LAYOUT1_ECCN) \
> + & BM_BCH_FLASH0LAYOUT1_ECCN) \
> + )
>
> #define BP_BCH_FLASH0LAYOUT1_DATAN_SIZE 0
> #define BM_BCH_FLASH0LAYOUT1_DATAN_SIZE \
> (0xfff << BP_BCH_FLASH0LAYOUT1_DATAN_SIZE)
> -#define BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(v) \
> - (((v) << BP_BCH_FLASH0LAYOUT1_DATAN_SIZE) \
> - & BM_BCH_FLASH0LAYOUT1_DATAN_SIZE)
> +#define MX6Q_BM_BCH_FLASH0LAYOUT1_DATAN_SIZE \
> + (0x3ff << BP_BCH_FLASH0LAYOUT1_DATAN_SIZE)
> +#define BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(v, x) \
> + (GPMI_IS_MX6Q(x) \
> + ? (((v) >> 2) & MX6Q_BM_BCH_FLASH0LAYOUT1_DATAN_SIZE) \
> + : ((v) & BM_BCH_FLASH0LAYOUT1_DATAN_SIZE) \
> + )
> #endif
> diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
> index 7db6555..cbcf022 100644
> --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
> +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
> @@ -223,13 +223,13 @@ int bch_set_geometry(struct gpmi_nand_data *this)
> /* Configure layout 0. */
> writel(BF_BCH_FLASH0LAYOUT0_NBLOCKS(block_count)
> | BF_BCH_FLASH0LAYOUT0_META_SIZE(metadata_size)
> - | BF_BCH_FLASH0LAYOUT0_ECC0(ecc_strength)
> - | BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(block_size),
> + | BF_BCH_FLASH0LAYOUT0_ECC0(ecc_strength, this)
> + | BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(block_size, this),
> r->bch_regs + HW_BCH_FLASH0LAYOUT0);
>
> writel(BF_BCH_FLASH0LAYOUT1_PAGE_SIZE(page_size)
> - | BF_BCH_FLASH0LAYOUT1_ECCN(ecc_strength)
> - | BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(block_size),
> + | BF_BCH_FLASH0LAYOUT1_ECCN(ecc_strength, this)
> + | BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(block_size, this),
> r->bch_regs + HW_BCH_FLASH0LAYOUT1);
>
> /* Set *all* chip selects to use layout 0. */
> @@ -803,7 +803,8 @@ int gpmi_is_ready(struct gpmi_nand_data *this, unsigned chip)
> if (GPMI_IS_MX23(this)) {
> mask = MX23_BM_GPMI_DEBUG_READY0 << chip;
> reg = readl(r->gpmi_regs + HW_GPMI_DEBUG);
> - } else if (GPMI_IS_MX28(this)) {
> + } else if (GPMI_IS_MX28(this) || GPMI_IS_MX6Q(this)) {
> + /* MX28 shares the same R/B register as MX6Q. */
> mask = MX28_BF_GPMI_STAT_READY_BUSY(1 << chip);
> reg = readl(r->gpmi_regs + HW_GPMI_STAT);
> } else
> @@ -1055,8 +1056,9 @@ int gpmi_read_page(struct gpmi_nand_data *this,
> | BF_GPMI_CTRL0_ADDRESS(address)
> | BF_GPMI_CTRL0_XFER_COUNT(geo->page_size);
> pio[1] = 0;
> + pio[2] = 0; /* Set GPMI_HW_GPMI_ECCCTRL, disable the BCH. */
> desc = channel->device->device_prep_slave_sg(channel,
> - (struct scatterlist *)pio, 2,
> + (struct scatterlist *)pio, 3,
> DMA_TRANS_NONE, 1);
> if (!desc) {
> pr_err("step 3 error\n");
> diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> index f39f83e..cfcc0eb 100644
> --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> @@ -1582,6 +1582,9 @@ static const struct platform_device_id gpmi_ids[] = {
> }, {
> .name = "imx28-gpmi-nand",
> .driver_data = IS_MX28,
> + }, {
> + .name = "imx6q-gpmi-nand",
> + .driver_data = IS_MX6Q,
> }, {},
> };
>
> diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
> index e023bcc..c93b0ae 100644
> --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
> +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
> @@ -268,6 +268,8 @@ extern int gpmi_read_page(struct gpmi_nand_data *,
> /* Use the platform_id to distinguish different Archs. */
> #define IS_MX23 0x1
> #define IS_MX28 0x2
> +#define IS_MX6Q 0x8
> #define GPMI_IS_MX23(x) ((x)->pdev->id_entry->driver_data == IS_MX23)
> #define GPMI_IS_MX28(x) ((x)->pdev->id_entry->driver_data == IS_MX28)
> +#define GPMI_IS_MX6Q(x) ((x)->pdev->id_entry->driver_data == IS_MX6Q)
> #endif
^ permalink raw reply [flat|nested] 2+ messages in thread
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