Difference between revisions of "Unit BCMSDHOST"
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Revision as of 03:04, 25 July 2021
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Description
Broadcom BCM27XX SDHOST driver
The SDHOST controller on the BCM27XX is a non SDHCI-compliant device which requires a specific driver.
It can be routed to GPIO pins 22 to 27 (ALT0) or 48 to 53 (ALT0) in order to control the SD card slot when the SDHCI device is being used for the on board WiFi.
Note that on the Raspberry Pi 4 the SD card is no longer connected to pins 48 to 53 so the SDHOST controller cannot control the primary SD card, there is an additional SDHCI controller (EMMC2) for that purpose.
Constants
To be documented
Type definitions
To be documented
Public variables
None defined
Function declarations
To be documented
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