Hover

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  1. Like
    Hover got a reaction from aaditya in Mainline u-boot spl nvme support   
    I want to use the mainline u-boot spl to load the u-boot proper(u-boot.itb) from nvme, so that the only part off the nvme is the tpl/spl in the emmc/sd/spi flash.
    But now the mainline u-boot has no pcie driver and no nvme support in spl.
     
    I have found the radxa guys using their u-boot in spi flash to boot kernel from nvme. But their pcie driver(https://github.com/radxa/u-boot/commit/096f2c16bbfa24c93a4c87e31334d5b5064dfd0a) has a limitation: It can not be used in u-boot spl, or it would not function properly in u-boot proper and fail the boot. 
    After some frustrating tryings and compare with the linux driver, I found that the port initialization process was short cutted and causing the reinitialization malfunctioned. After this correction the pcie driver can be used in spl: it can be reinitialized correctly in u-boot proper.
     
    Bring nvme support into spl is just a mimic from the spl_mmc and spl_usb driver.
     
    Another patch for fixing spl_ext as I want the u-boot.itb and kernel in a ext4 partition on nvme but the existing spl_ext can not load the u-boot.itb properly.
     
    With these patches I can boot nanopc-t4 with u-boot.itb and linux kernel in nvme boot partition and only the u-boot tpl/spl in emmc.
     
    Btw, now the vidconsole of the mainline u-boot is working on rk3399, but usb phys are still missing.
     
     
    pcie.patch rk3399_boot_nvme.patch spl_ext_fix.patch spl_nvme.patch
  2. Like
    Hover got a reaction from mar0ni in Mainline u-boot spl nvme support   
    I want to use the mainline u-boot spl to load the u-boot proper(u-boot.itb) from nvme, so that the only part off the nvme is the tpl/spl in the emmc/sd/spi flash.
    But now the mainline u-boot has no pcie driver and no nvme support in spl.
     
    I have found the radxa guys using their u-boot in spi flash to boot kernel from nvme. But their pcie driver(https://github.com/radxa/u-boot/commit/096f2c16bbfa24c93a4c87e31334d5b5064dfd0a) has a limitation: It can not be used in u-boot spl, or it would not function properly in u-boot proper and fail the boot. 
    After some frustrating tryings and compare with the linux driver, I found that the port initialization process was short cutted and causing the reinitialization malfunctioned. After this correction the pcie driver can be used in spl: it can be reinitialized correctly in u-boot proper.
     
    Bring nvme support into spl is just a mimic from the spl_mmc and spl_usb driver.
     
    Another patch for fixing spl_ext as I want the u-boot.itb and kernel in a ext4 partition on nvme but the existing spl_ext can not load the u-boot.itb properly.
     
    With these patches I can boot nanopc-t4 with u-boot.itb and linux kernel in nvme boot partition and only the u-boot tpl/spl in emmc.
     
    Btw, now the vidconsole of the mainline u-boot is working on rk3399, but usb phys are still missing.
     
     
    pcie.patch rk3399_boot_nvme.patch spl_ext_fix.patch spl_nvme.patch