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MLK-23693-3: mtd: rawnand: gpmi: add imx8dxl nand support 

imx8dxl ddr3 board doesn't have CS control connected by default, add new
device tree property to specify imx8dxl ddr3 evk supports only one cs.

Signed-off-by: Han Xu <han.xu@nxp.com>
5.4-rM2-2.2.x-imx-squashed
Han Xu 2020-03-30 11:07:33 -05:00
parent c520bb1de3
commit 892c9f919b
1 changed files with 7 additions and 1 deletions
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8
drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
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@ -2825,6 +2825,7 @@ static int gpmi_nand_init(struct gpmi_nand_data *this)
{
struct nand_chip *chip = &this->nand;
struct mtd_info *mtd = nand_to_mtd(chip);
u32 max_cs;
int ret;
/* init the MTD data structures */
@ -2855,7 +2856,12 @@ static int gpmi_nand_init(struct gpmi_nand_data *this)
this->base.ops = &gpmi_nand_controller_ops;
chip->controller = &this->base;
ret = nand_scan(chip, (GPMI_IS_MX6(this) || GPMI_IS_MX8(this)) ? 2 : 1);
max_cs = (GPMI_IS_MX6(this) || GPMI_IS_MX8(this)) ? 2 : 1;
/* override the max_cs if board has other limitations */
of_property_read_u32(this->pdev->dev.of_node, "max-cs", &max_cs);
ret = nand_scan(chip, max_cs);
if (ret)
goto err_out;