• 0 Posts
  • 83 Comments
Joined 1 year ago
cake
Cake day: June 12th, 2023

help-circle
  • Static_Rocket@lemmy.worldtoTechnology@lemmy.worldWhy don't cell phones have BIOS?
    link
    fedilink
    English
    arrow-up
    10
    arrow-down
    1
    ·
    edit-2
    6 hours ago

    Because ARM was built to be cheap.

    BIOS nowadays is basically a bootloader shim in EEPROM. The majority of the ARM ecosystem wanted flexible and cheap devices. This promoted the use of a small ROM loader burned into the device and a removal of basically all EEPROM from the SoC.

    The flexibility came back through the use of a secondary bootloader layer normally stored in the devices primary storage. Most manufacturers use u-boot or coreboot on an SD card or eMMC. Android standardized this as part of their partitioning scheme. All devices have a dedicated bootloader partition housing the secondary bootloader and any additional boot artifacts.

    Then phones became wildly expensive and invalidated most of this.

    Also, do you think it’s possible that this way of doing things will come to the computer, with ARM hoping to gain a good share of the market and all?

    It already has. Most of what ARM is doing to be cheap was already pioneered by PowerPC.

    ARM EBBR specifications attempt to standardize this boot flow somewhat, introducing a standard EFI shell in u-boot. This does not solve the dependency on the secondary bootloader, and it doesn’t prevent people from shooting themselves in the foot. It just makes distro interactions with the secondary bootloader more standardized.











  • I was working at a company at one point that got a contract to build something I viewed equivalent to malware. Immediately I brought it up to several higher-ups that this was not something I was willing to do. One of them brought up the argument “If we don’t do it someone else will.”

    This mentality scares the shit out of me, but it explains a lot of horrible things in the industry.

    Believing in that mentality is worse than the reality of the situation. At least if you say no there’s a chance it doesn’t happen or it gets passed to someone worse than you. If you say yes then not only are you complicit, you are actively enforcing that gloomy mentality for other engineers. Just say no.