LS1021A: Not able to boot from QSPI flash

vishnu_motghare — Mon, 07 Nov 2022 08:42:51 GMT

I have a working custom board based on LS1021ATWR. Board has two "spansion,s25fl512s" flash 64 MB each which is working fine. I am able to boot the device from flash.

RCW & u-boot file used

- rcw_1000_qspiboot_swap.bin

- u-boot-swap.bin

Following is the DTS entry for it

&qspi { num-cs = <2>; bus-num = <0>; fsl,qspi-has-second-chip; status = "okay"; qflash0: s70fl01gs@0 { compatible = "spansion,s25fl512s", "jedec,spi-nor"; spi-max-frequency = <50000000>; /* * NOTE: Changes to this partion layout possibly requires * changes in the bootloader and/or environment */ partitions { compatible = "fixed-partitions"; #address-cells = <1>; #size-cells = <1>; partition@0 { label = "RCW"; reg = <0x0 0x40000>; }; partition@40000 { label = "u-boot"; reg = <0x40000 0xc0000>; }; partition@100000 { label = "u-boot-env"; reg = <0x100000 0x40000>; }; partition@140000 { label = "u-boot-env-redund"; reg = <0x140000 0x40000>; }; partition@180000 { label = "qe-ucode"; reg = <0x180000 0x40000>; }; partition@1c0000 { label = "dtb1"; reg = <0x1c0000 0x40000>; }; partition@200000 { label = "kernel1"; reg = <0x200000 0x400000>; }; partition@600000 { label = "rootfs1"; reg = <0x600000 0xc00000>; }; partition@1200000 { label = "dtb2"; reg = <0x1200000 0x40000>; }; partition@1240000 { label = "kernel2"; reg = <0x1240000 0x500000>; }; partition@1740000 { label = "rootfs2"; reg = <0x1740000 0x2880000>; }; }; }; qflash1: s70fl01gs@1 { compatible = "spansion,s25fl512s", "jedec,spi-nor"; spi-max-frequency = <50000000>; partitions { compatible = "fixed-partitions"; #address-cells = <1>; #size-cells = <1>; partition@0 { label = "user"; reg = <0x0 0x4000000>; }; }; };

I have replaced the "s25fl512s" flash with "macronix,mx66lm1g45g" 128 MB flash. Modified the DTS file & booted the device using SD boot & flash the same rcw_1000_qspiboot_swap.bin & u-boot-swap.bin. After Switching back to QSPI boot nothing comes on the console. No u-boot output on the serial console. PBL is supposed to read RCW from /dev/mtd/RCW & then load u-boot from /dev/mtd/u-boot. But nothing comes on serial

Following is my modified DTS for the new flash

&qspi { num-cs = <2>; bus-num = <0>; fsl,qspi-has-second-chip; status = "okay"; qflash0: mx66lm1g45g@0 { compatible = "macronix,mx66lm1g45g", "jedec,spi-nor"; spi-max-frequency = <50000000>; /* * NOTE: Changes to this partion layout possibly requires * changes in the bootloader and/or environment */ partitions { compatible = "fixed-partitions"; #address-cells = <1>; #size-cells = <1>; partition@0 { label = "RCW"; reg = <0x0 0x40000>; }; partition@40000 { label = "u-boot"; reg = <0x40000 0xc0000>; }; partition@100000 { label = "u-boot-env"; reg = <0x100000 0x40000>; }; partition@140000 { label = "u-boot-env-redund"; reg = <0x140000 0x40000>; }; partition@180000 { label = "qe-ucode"; reg = <0x180000 0x40000>; }; partition@1c0000 { label = "dtb1"; reg = <0x1c0000 0x40000>; }; partition@200000 { label = "kernel1"; reg = <0x200000 0x400000>; }; partition@600000 { label = "rootfs1"; reg = <0x600000 0xc00000>; }; partition@1200000 { label = "dtb2"; reg = <0x1200000 0x40000>; }; partition@1240000 { label = "kernel2"; reg = <0x1240000 0x500000>; }; partition@1740000 { label = "rootfs2"; reg = <0x1740000 0x2880000>; }; partition@3FC0000 { label = "user"; reg = <0x3FC0000 0x4000000>; }; };

Do I need to change any settings in rcw.cfg file for the new flash or in the u-boot code? Any help is appreciated?

Re: LS1021A: Not able to boot from QSPI flash

vishnu_motghare — Thu, 10 Nov 2022 06:45:01 GMT

I've tried with another flash from Macronix MX66L2G45G (256 MB) & Programmed the RCW & u-boot-swap.bin file & I'm able to boot from the flash. But the issue is still there with MX66LM1G45G (128 MB) flash.

Following is my PBL setting in the u-boot source code, do I need to modify anything here for to boot from 128 MB flash?

#PBL preamble and RCW header aa55aa55 01ee0100 0608000a 00000000 00000000 00000000 20000000 08407922 60000a00 21046000 00000000 00000000 00000000 0021ef00 20024800 2808f340 00000000 00000000

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LS1021A: Not able to boot from QSPI flash

Re: LS1021A: Not able to boot from QSPI flash