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| author | Matt DeVillier <matt.devillier@gmail.com> | 2016-03-16 20:37:35 -0500 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2016-03-21 11:55:37 -0400 |
| commit | fc0878926bfe644f07fba27228432cada68ec3ba (patch) | |
| tree | 5b84c724301b13880766b9239641550e0ed07f42 /docs | |
| parent | dce99e01b6bfc51175bdf32612fd4f2738e5c3c8 (diff) | |
| download | seabios-hppa-fc0878926bfe644f07fba27228432cada68ec3ba.zip seabios-hppa-fc0878926bfe644f07fba27228432cada68ec3ba.tar.gz seabios-hppa-fc0878926bfe644f07fba27228432cada68ec3ba.tar.bz2 | |
sdcard: skip detection of PCI sdhci controllers if etc/sdcard used
Some BayTrail ChromeOS devices have the eMMC controller hidden (thus
requiring the use of etc/sdcard), while others do not, making it
problematic to have a single payload which serves all devices
properly. Therefore, if the CBFS contains etc/sdcard entries, skip
detection of any visible PCI sdhci controllers in order to avoid
duplicate entries in the boot menu.
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/Runtime_config.md | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/Runtime_config.md b/docs/Runtime_config.md index 483c375..5171296 100644 --- a/docs/Runtime_config.md +++ b/docs/Runtime_config.md @@ -188,5 +188,5 @@ There are several additional configuration options available in the | floppy0 | Set this to the type of the first floppy drive in the system (only type 4 for 3.5 inch drives is supported). | floppy1 | The type of the second floppy drive in the system. See the description of **floppy0** for more info. | threads | By default, SeaBIOS will parallelize hardware initialization during bootup to reduce boot time. Multiple hardware devices can be initialized in parallel between vga initialization and option rom initialization. One can set this file to a value of zero to force hardware initialization to run serially. Alternatively, one can set this file to 2 to enable early hardware initialization that runs in parallel with vga, option rom initialization, and the boot menu. -| sdcard* | One may create one or more files with an "sdcard" prefix (eg, "etc/sdcard0") with the physical memory address of an SDHCI controller (one memory address per file). This may be useful for SDHCI controllers that do not appear as PCI devices, but are mapped to a consistent memory address. +| sdcard* | One may create one or more files with an "sdcard" prefix (eg, "etc/sdcard0") with the physical memory address of an SDHCI controller (one memory address per file). This may be useful for SDHCI controllers that do not appear as PCI devices, but are mapped to a consistent memory address. If this option is used then SeaBIOS will not scan for PCI SHDCI controllers. | usb-time-sigatt | The USB2 specification requires devices to signal that they are attached within 100ms of the USB port being powered on. Some USB devices are known to require more time. Prior to receiving an attachment signal there is no way to know if a USB port is empty or if it has a device attached. One may specify an amount of time here (in milliseconds, default 100) to wait for a USB device attachment signal. Increasing this value will also increase the overall machine bootup time. |