How to use the Parallel NOR-Flash on custom board based on imx6qsabresd

sumish_ks — Sat, 29 Sep 2018 08:09:33 GMT

Hello,

I am trying to use S29GL01GS parallel NOR flash (128MB) on custom board based on imx6qsabresd. I have configured weim in the dts file as shown below:

weim {
       pinctrl_weim_cs0_2: weim_cs0grp-2 {
           fsl,pins = <
               MX6QDL_PAD_EIM_CS0__EIM_CS0_B   0xb0b1/*custom add*/
           >;
       };

       pinctrl_weim_nor_2: weim_norgrp-2 {
           fsl,pins = <
               MX6QDL_PAD_EIM_OE__EIM_OE_B     0xb0b1
               MX6QDL_PAD_EIM_RW__EIM_RW       0xb0b1
               MX6QDL_PAD_EIM_WAIT__EIM_WAIT_B 0xb060

               MX6QDL_PAD_CSI0_DATA_EN__EIM_DATA00 0x1b0b0
               MX6QDL_PAD_CSI0_VSYNC__EIM_DATA01 0x1b0b0
               MX6QDL_PAD_CSI0_DAT4__EIM_DATA02 0x1b0b0
               MX6QDL_PAD_CSI0_DAT5__EIM_DATA03 0x1b0b0
               MX6QDL_PAD_CSI0_DAT6__EIM_DATA04 0x1b0b0
               MX6QDL_PAD_CSI0_DAT7__EIM_DATA05 0x1b0b0
               MX6QDL_PAD_CSI0_DAT8__EIM_DATA06 0x1b0b0
               MX6QDL_PAD_CSI0_DAT9__EIM_DATA07 0x1b0b0
               MX6QDL_PAD_CSI0_DAT12__EIM_DATA08 0x1b0b0
               MX6QDL_PAD_CSI0_DAT13__EIM_DATA09 0x1b0b0
               MX6QDL_PAD_CSI0_DAT14__EIM_DATA10 0x1b0b0
               MX6QDL_PAD_CSI0_DAT15__EIM_DATA11 0x1b0b0
               MX6QDL_PAD_CSI0_DAT16__EIM_DATA12 0x1b0b0
               MX6QDL_PAD_CSI0_DAT17__EIM_DATA13 0x1b0b0
               MX6QDL_PAD_CSI0_DAT18__EIM_DATA14 0x1b0b0
               MX6QDL_PAD_CSI0_DAT19__EIM_DATA15 0x1b0b0
               /* address */
               MX6QDL_PAD_EIM_A25__EIM_ADDR25 0xb0b1 /*custom add*/
               MX6QDL_PAD_EIM_A24__EIM_ADDR24 0xb0b1 /*custom add*/
               MX6QDL_PAD_EIM_A23__EIM_ADDR23 0xb0b1
               MX6QDL_PAD_EIM_A22__EIM_ADDR22 0xb0b1
               MX6QDL_PAD_EIM_A21__EIM_ADDR21 0xb0b1
               MX6QDL_PAD_EIM_A20__EIM_ADDR20 0xb0b1
               MX6QDL_PAD_EIM_A19__EIM_ADDR19 0xb0b1
               MX6QDL_PAD_EIM_A18__EIM_ADDR18 0xb0b1
               MX6QDL_PAD_EIM_A17__EIM_ADDR17 0xb0b1
               MX6QDL_PAD_EIM_A16__EIM_ADDR16 0xb0b1
               MX6QDL_PAD_EIM_DA15__EIM_AD15 0xb0b1
               MX6QDL_PAD_EIM_DA14__EIM_AD14 0xb0b1
               MX6QDL_PAD_EIM_DA13__EIM_AD13 0xb0b1
               MX6QDL_PAD_EIM_DA12__EIM_AD12 0xb0b1
               MX6QDL_PAD_EIM_DA11__EIM_AD11 0xb0b1
               MX6QDL_PAD_EIM_DA10__EIM_AD10 0xb0b1
               MX6QDL_PAD_EIM_DA9__EIM_AD09   0xb0b1
               MX6QDL_PAD_EIM_DA8__EIM_AD08   0xb0b1
               MX6QDL_PAD_EIM_DA7__EIM_AD07   0xb0b1
               MX6QDL_PAD_EIM_DA6__EIM_AD06   0xb0b1
               MX6QDL_PAD_EIM_DA5__EIM_AD05   0xb0b1
               MX6QDL_PAD_EIM_DA4__EIM_AD04   0xb0b1
               MX6QDL_PAD_EIM_DA3__EIM_AD03   0xb0b1
               MX6QDL_PAD_EIM_DA2__EIM_AD02   0xb0b1
               MX6QDL_PAD_EIM_DA1__EIM_AD01   0xb0b1
               MX6QDL_PAD_EIM_DA0__EIM_AD00   0xb0b1
           >;
       };
   };

&weim {
       compatible = "fsl,imx6q-weim";
       reg = <0x021b8000 0x4000>;
       clocks = <&clks IMX6QDL_CLK_EIM_SLOW>;
       pinctrl-names = "default";
       pinctrl-0 = <&pinctrl_weim_nor_2 &pinctrl_weim_cs0_2>;
       #address-cells = <2>;//see below:1 cell for 4 hex digits
       #size-cells = <1>;
           ranges = <0 0 0x08000000 0x08000000>;
       status = "okay";

       nor@0,0 {
           compatible = "cfi-flash";
           reg = <0 0 0x02000000>;
           #address-cells = <1>;
           #size-cells = <1>;
           bank-width = <2>;
           fsl,weim-cs-timing = <0x10610281 0x00000001 0x0b020000
               0x00008000 0x1c000000 0x00000000>;

};
};

Kernel Config file contents:

CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_PHYSMAP_OF=y
CONFIG_MTD_DATAFLASH=y
CONFIG_MTD_M25P80=y
CONFIG_MTD_SST25L=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_GPMI_NAND=y
CONFIG_MTD_NAND_MXC=y
CONFIG_MTD_SPI_NOR=y
CONFIG_SPI_FSL_QUADSPI=y
CONFIG_MTD_UBI=y

When I try to boot, I get this error message:

of-flash 8000000.nor: do_map_probe() failed

Did I miss something? Can anyone tell me how to use it?

Thank you very much in advance.

Re: How to use the Parallel NOR-Flash on custom board based on imx6qsabresd

igorpadykov — Tue, 02 Oct 2018 05:53:56 GMT

Hi Sumish

i.MX6Q Sabre Auto board supports parallel nor and one can look at its dts example:

imx6q-sabreauto-gpmi-weim.dts

imx6q-sabreauto-gpmi-weim.dts\dts\boot\arm\arch - linux-imx - i.MX Linux kernel

Linux driver is described in sect.3.2 EIM NOR attached Linux Manual.

For programming images one can use mfg tool script

..More_scripts/mfgtool2-yocto-mx-sabreauto-weim-nor.vbs

https://www.nxp.com/webapp/Download?colCode=IMX6_L4.9.88_2.0.0_MFG_TOOL&appType=license&location=null&Parent_nodeId=1337…

Best regards
igor
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Re: How to use the Parallel NOR-Flash on custom board based on imx6qsabresd

sumish_ks — Mon, 15 Oct 2018 11:17:15 GMT

Hi igor,

I have done configurations according to imx6q sabre auto board dts example and I am still getting that error. Do I need to add S29GL01GS NOR flash driver to drivers/mtd directory ?

Thanks & Regards,

Sumish

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