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| author | Jeremy Linton <jeremy.linton@arm.com> | 2021-01-20 03:04:06 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-02-01 13:54:48 +0300 |
| commit | 4f9833d3ec8da34861cd0680b00c73e653877eb9 (patch) | |
| tree | b783d4e3e4653f956910135a4f0d20c4a03c3f5b /drivers/mmc/host/atmel-mci.c | |
| parent | 1a9705936aff95fe2bf03684a586c0c83b71f71f (diff) | |
| download | linux-4f9833d3ec8da34861cd0680b00c73e653877eb9.tar.xz | |
mmc: sdhci-iproc: Add ACPI bindings for the RPi
The RPi4 has an Arasan controller it carries over from the RPi3 and a newer
eMMC2 controller. Because of a couple of quirks, it seems wiser to bind
these controllers to the same driver that DT is using on this platform
rather than the generic sdhci_acpi driver with PNP0D40.
So, BCM2847 describes the older Arasan and BRCME88C describes the newer
eMMC2. The older Arasan is reusing an existing ACPI _HID used by other OSes
booting these tables on the RPi.
With this change, Linux is capable of utilizing the SD card slot, and the
Wi-Fi when booted with UEFI+ACPI on the RPi4.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210120000406.1843400-2-jeremy.linton@arm.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/atmel-mci.c')
0 files changed, 0 insertions, 0 deletions