[PATCH v2 1/3] mtd: gpmi: add device tree support for mx6q and mx28
Shawn Guo
shawn.guo at linaro.org
Tue May 1 03:49:47 EDT 2012
On Wed, Apr 25, 2012 at 11:06:22AM +0800, Huang Shijie wrote:
> add gpmi support for mx6q.
> add DT support to mx6q and mx28.
>
> Signed-off-by: Huang Shijie <b32955 at freescale.com>
> ---
> .../devicetree/bindings/mtd/gpmi-nand.txt | 34 +++++
> drivers/mtd/nand/Kconfig | 2 +-
> drivers/mtd/nand/gpmi-nand/bch-regs.h | 42 +++++--
> drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 18 ++--
> drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 131 ++++++++++----------
> drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 6 +-
> include/linux/mtd/gpmi-nand.h | 8 +-
> 7 files changed, 152 insertions(+), 89 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/mtd/gpmi-nand.txt
>
> diff --git a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
> new file mode 100644
> index 0000000..13fbb35
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
> @@ -0,0 +1,34 @@
> +* Freescale General-Purpose Media Interface (GPMI)
> +
> +The GPMI nand controller provides an interface to control the
> +NAND flash chips. We support only one NAND chip now.
> +
> +Required properties:
> + - compatible : should be "fsl,<chip>-gpmi-nand"
> + - reg : should contain registers location and length for gpmi and bch.
> + - reg-names: Should contain the reg names "gpmi-nand" and "bch"
> + - interrupts : The first is the DMA interrupt number for GPMI.
> + The second is the BCH interrupt number.
> + - interrupt-names : The interrupt names "gpmi-dma", "bch";
> + - fsl,gpmi-dma-channel : Should contain the dma channel it uses.
> +
> +Optional properties:
> + - partition : contain sub-nodes describing partitions of the
> + address space. See partition.txt for more detail.
The partition here is not a property but a sub-node, so you should
not document it as a property, but simply put a reference to
partition.txt probably like what
Documentation/devicetree/bindings/mtd/atmel-dataflash.txt does.
> +
> +Examples:
> +
> +gpmi-nand at 8000c000 {
> + compatible = "fsl,imx28-gpmi-nand";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + reg = <0x8000c000 2000>, <0x8000a000 2000>;
> + reg-names = "gpmi-nand", "bch";
> + interrupts = <88>, <41>;
> + interrupt-names = "gpmi-dma", "bch";
> + fsl,gpmi-dma-channel = <4>;
> +
> + partition at 0 {
> + ...
> + };
> +};
> diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
> index 7d17cec..bf0a28d 100644
> --- a/drivers/mtd/nand/Kconfig
> +++ b/drivers/mtd/nand/Kconfig
> @@ -440,7 +440,7 @@ config MTD_NAND_NANDSIM
>
> config MTD_NAND_GPMI_NAND
> bool "GPMI NAND Flash Controller driver"
> - depends on MTD_NAND && (SOC_IMX23 || SOC_IMX28)
> + depends on MTD_NAND && (SOC_IMX23 || SOC_IMX28 || SOC_IMX6Q)
> help
> Enables NAND Flash support for IMX23 or IMX28.
> The GPMI controller is very powerful, with the help of BCH
> 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 fa5200b..a1f4332 100644
> --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
> +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
> @@ -224,13 +224,13 @@ 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. */
> @@ -256,11 +256,12 @@ static unsigned int ns_to_cycles(unsigned int time,
> return max(k, min);
> }
>
> +#define DEF_MIN_PROP_DELAY 5
> +#define DEF_MAX_PROP_DELAY 9
> /* Apply timing to current hardware conditions. */
> static int gpmi_nfc_compute_hardware_timing(struct gpmi_nand_data *this,
> struct gpmi_nfc_hardware_timing *hw)
> {
> - struct gpmi_nand_platform_data *pdata = this->pdata;
> struct timing_threshod *nfc = &timing_default_threshold;
> struct nand_chip *nand = &this->nand;
> struct nand_timing target = this->timing;
> @@ -277,8 +278,8 @@ static int gpmi_nfc_compute_hardware_timing(struct gpmi_nand_data *this,
> int ideal_sample_delay_in_ns;
> unsigned int sample_delay_factor;
> int tEYE;
> - unsigned int min_prop_delay_in_ns = pdata->min_prop_delay_in_ns;
> - unsigned int max_prop_delay_in_ns = pdata->max_prop_delay_in_ns;
> + unsigned int min_prop_delay_in_ns = DEF_MIN_PROP_DELAY;
> + unsigned int max_prop_delay_in_ns = DEF_MAX_PROP_DELAY;
>
> /*
> * If there are multiple chips, we need to relax the timings to allow
> @@ -804,7 +805,8 @@ 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
> diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> index 75b1dde..e0ea598 100644
> --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> @@ -24,6 +24,9 @@
> #include <linux/module.h>
> #include <linux/mtd/gpmi-nand.h>
> #include <linux/mtd/partitions.h>
> +#include <linux/of_address.h>
This line is probably not needed?
> +#include <linux/of_device.h>
> +#include <linux/of_irq.h>
Ditto?
> #include "gpmi-nand.h"
>
> /* add our owner bbt descriptor */
> @@ -385,7 +388,7 @@ static void release_bch_irq(struct gpmi_nand_data *this)
> static bool gpmi_dma_filter(struct dma_chan *chan, void *param)
> {
> struct gpmi_nand_data *this = param;
> - struct resource *r = this->private;
> + int dma_channel = (int)this->private;
>
> if (!mxs_dma_is_apbh(chan))
> return false;
> @@ -397,7 +400,7 @@ static bool gpmi_dma_filter(struct dma_chan *chan, void *param)
> * for mx28 : MX28_DMA_GPMI0 ~ MX28_DMA_GPMI7
> * (These eight channels share the same IRQ!)
> */
> - if (r->start <= chan->chan_id && chan->chan_id <= r->end) {
> + if (dma_channel == chan->chan_id) {
> chan->private = &this->dma_data;
> return true;
> }
> @@ -417,57 +420,45 @@ static void release_dma_channels(struct gpmi_nand_data *this)
> static int __devinit acquire_dma_channels(struct gpmi_nand_data *this)
> {
> struct platform_device *pdev = this->pdev;
> - struct gpmi_nand_platform_data *pdata = this->pdata;
> - struct resources *res = &this->resources;
> - struct resource *r, *r_dma;
> - unsigned int i;
> + struct resource *r_dma;
> + struct device_node *dn;
> + int dma_channel;
> + unsigned int ret;
> + struct dma_chan *dma_chan;
> + dma_cap_mask_t mask;
> +
> + /* dma channel, we only use the first one. */
> + dn = pdev->dev.of_node;
> + ret = of_property_read_u32(dn, "fsl,gpmi-dma-channel", &dma_channel);
> + if (ret) {
> + pr_err("unable to get DMA channel from dt.\n");
> + goto acquire_err;
> + }
> + this->private = (void *)dma_channel;
>
> - r = platform_get_resource_byname(pdev, IORESOURCE_DMA,
> - GPMI_NAND_DMA_CHANNELS_RES_NAME);
You are adding device tree support into a driver that is working fine
for non-DT probe. So before all the users of this driver are converted
to DT, you have to ensure the driver works for both non-DT and DT users
in a single image when you add DT support for it.
So above code should be something like:
if (dn) {
/* get channel number from device tree */
......
} else {
/* otherwise it works as before */
}
> + /* gpmi dma interrupt */
> r_dma = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
> GPMI_NAND_DMA_INTERRUPT_RES_NAME);
> - if (!r || !r_dma) {
> + if (!r_dma) {
> pr_err("Can't get resource for DMA\n");
> - return -ENXIO;
> + goto acquire_err;
> }
> + this->dma_data.chan_irq = r_dma->start;
>
> - /* used in gpmi_dma_filter() */
> - this->private = r;
> -
> - for (i = r->start; i <= r->end; i++) {
> - struct dma_chan *dma_chan;
> - dma_cap_mask_t mask;
> -
> - if (i - r->start >= pdata->max_chip_count)
> - break;
> + /* request dma channel */
> + dma_cap_zero(mask);
> + dma_cap_set(DMA_SLAVE, mask);
>
> - dma_cap_zero(mask);
> - dma_cap_set(DMA_SLAVE, mask);
> -
> - /* get the DMA interrupt */
> - if (r_dma->start == r_dma->end) {
> - /* only register the first. */
> - if (i == r->start)
> - this->dma_data.chan_irq = r_dma->start;
> - else
> - this->dma_data.chan_irq = NO_IRQ;
> - } else
> - this->dma_data.chan_irq = r_dma->start + (i - r->start);
> -
> - dma_chan = dma_request_channel(mask, gpmi_dma_filter, this);
> - if (!dma_chan)
> - goto acquire_err;
> -
> - /* fill the first empty item */
> - this->dma_chans[i - r->start] = dma_chan;
> + dma_chan = dma_request_channel(mask, gpmi_dma_filter, this);
> + if (!dma_chan) {
> + pr_err("dma_request_channel failed.\n");
> + goto acquire_err;
> }
>
> - res->dma_low_channel = r->start;
> - res->dma_high_channel = i;
> + this->dma_chans[0] = dma_chan;
> return 0;
>
> acquire_err:
> - pr_err("Can't acquire DMA channel %u\n", i);
> release_dma_channels(this);
> return -EINVAL;
> }
> @@ -1461,9 +1452,9 @@ void gpmi_nfc_exit(struct gpmi_nand_data *this)
>
> static int __devinit gpmi_nfc_init(struct gpmi_nand_data *this)
> {
> - struct gpmi_nand_platform_data *pdata = this->pdata;
> struct mtd_info *mtd = &this->mtd;
> struct nand_chip *chip = &this->nand;
> + struct mtd_part_parser_data ppdata = {};
> int ret;
>
> /* init current chip */
> @@ -1501,14 +1492,14 @@ static int __devinit gpmi_nfc_init(struct gpmi_nand_data *this)
> if (ret)
> goto err_out;
>
> - ret = nand_scan(mtd, pdata->max_chip_count);
> + ret = nand_scan(mtd, 1);
Ditto, you should not break non-DT users.
> if (ret) {
> pr_err("Chip scan failed\n");
> goto err_out;
> }
>
> - ret = mtd_device_parse_register(mtd, NULL, NULL,
> - pdata->partitions, pdata->partition_count);
> + ppdata.of_node = this->pdev->dev.of_node;
> + ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
> if (ret)
> goto err_out;
> return 0;
> @@ -1518,12 +1509,41 @@ err_out:
> return ret;
> }
>
> +static const struct platform_device_id gpmi_ids[] = {
> + { .name = "imx23-gpmi-nand", .driver_data = IS_MX23, },
> + { .name = "imx28-gpmi-nand", .driver_data = IS_MX28, },
> + { .name = "imx6q-gpmi-nand", .driver_data = IS_MX6Q, },
> + {},
> +};
> +
> +static const struct of_device_id gpmi_nand_id_table[] = {
> + {
> + .compatible = "fsl,imx23-gpmi-nand",
> + .data = (void *)&gpmi_ids[IS_MX23]
> + }, {
> + .compatible = "fsl,imx28-gpmi-nand",
> + .data = (void *)&gpmi_ids[IS_MX28]
> + }, {
> + .compatible = "fsl,imx6q-gpmi-nand",
> + .data = (void *)&gpmi_ids[IS_MX6Q]
> + }, {}
> +};
> +MODULE_DEVICE_TABLE(of, gpmi_nand_id_table);
> +
> static int __devinit gpmi_nand_probe(struct platform_device *pdev)
> {
> - struct gpmi_nand_platform_data *pdata = pdev->dev.platform_data;
> struct gpmi_nand_data *this;
> + const struct of_device_id *of_id;
> int ret;
>
> + of_id = of_match_device(gpmi_nand_id_table, &pdev->dev);
> + if (of_id)
> + pdev->id_entry = of_id->data;
> + else {
> + pr_err("Failed to find the right device id.\n");
> + return -ENOMEM;
> + }
> +
Ditto, it should still work for non-DT users.
BTW, it seems Documentation/CodingStyle suggest put brace like the
following.
if (condition) {
do_this();
} else {
otherwise_do_this();
otherwise_do_that();
}
Regards,
Shawn
> this = kzalloc(sizeof(*this), GFP_KERNEL);
> if (!this) {
> pr_err("Failed to allocate per-device memory\n");
> @@ -1533,13 +1553,6 @@ static int __devinit gpmi_nand_probe(struct platform_device *pdev)
> platform_set_drvdata(pdev, this);
> this->pdev = pdev;
> this->dev = &pdev->dev;
> - this->pdata = pdata;
> -
> - if (pdata->platform_init) {
> - ret = pdata->platform_init();
> - if (ret)
> - goto platform_init_error;
> - }
>
> ret = acquire_resources(this);
> if (ret)
> @@ -1557,7 +1570,6 @@ static int __devinit gpmi_nand_probe(struct platform_device *pdev)
>
> exit_nfc_init:
> release_resources(this);
> -platform_init_error:
> exit_acquire_resources:
> platform_set_drvdata(pdev, NULL);
> kfree(this);
> @@ -1575,19 +1587,10 @@ static int __exit gpmi_nand_remove(struct platform_device *pdev)
> return 0;
> }
>
> -static const struct platform_device_id gpmi_ids[] = {
> - {
> - .name = "imx23-gpmi-nand",
> - .driver_data = IS_MX23,
> - }, {
> - .name = "imx28-gpmi-nand",
> - .driver_data = IS_MX28,
> - }, {},
> -};
> -
> static struct platform_driver gpmi_nand_driver = {
> .driver = {
> .name = "gpmi-nand",
> + .of_match_table = gpmi_nand_id_table,
> },
> .probe = gpmi_nand_probe,
> .remove = __exit_p(gpmi_nand_remove),
> diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
> index ec6180d..ce5daa1 100644
> --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
> +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
> @@ -266,8 +266,10 @@ extern int gpmi_read_page(struct gpmi_nand_data *,
> #define STATUS_UNCORRECTABLE 0xfe
>
> /* Use the platform_id to distinguish different Archs. */
> -#define IS_MX23 0x1
> -#define IS_MX28 0x2
> +#define IS_MX23 0x0
> +#define IS_MX28 0x1
> +#define IS_MX6Q 0x2
> #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
> diff --git a/include/linux/mtd/gpmi-nand.h b/include/linux/mtd/gpmi-nand.h
> index 69b6dbf..ed3c4e0 100644
> --- a/include/linux/mtd/gpmi-nand.h
> +++ b/include/linux/mtd/gpmi-nand.h
> @@ -23,12 +23,12 @@
> #define GPMI_NAND_RES_SIZE 6
>
> /* Resource names for the GPMI NAND driver. */
> -#define GPMI_NAND_GPMI_REGS_ADDR_RES_NAME "GPMI NAND GPMI Registers"
> +#define GPMI_NAND_GPMI_REGS_ADDR_RES_NAME "gpmi-nand"
> #define GPMI_NAND_GPMI_INTERRUPT_RES_NAME "GPMI NAND GPMI Interrupt"
> -#define GPMI_NAND_BCH_REGS_ADDR_RES_NAME "GPMI NAND BCH Registers"
> -#define GPMI_NAND_BCH_INTERRUPT_RES_NAME "GPMI NAND BCH Interrupt"
> +#define GPMI_NAND_BCH_REGS_ADDR_RES_NAME "bch"
> +#define GPMI_NAND_BCH_INTERRUPT_RES_NAME "bch"
> #define GPMI_NAND_DMA_CHANNELS_RES_NAME "GPMI NAND DMA Channels"
> -#define GPMI_NAND_DMA_INTERRUPT_RES_NAME "GPMI NAND DMA Interrupt"
> +#define GPMI_NAND_DMA_INTERRUPT_RES_NAME "gpmi-dma"
>
> /**
> * struct gpmi_nand_platform_data - GPMI NAND driver platform data.
> --
> 1.7.0.4
>
>
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