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| author | Andrew Baumann | 2016-02-25 22:35:30 +0100 |
|---|---|---|
| committer | Peter Maydell | 2016-02-26 16:09:42 +0100 |
| commit | 0a7ac9f9e72246ce41dfb101c77a58de607aef7c (patch) | |
| tree | 5abfc1da84875c139963df6a3e5d8ed4eec5df52 /linux-headers/linux/psci.h | |
| parent | sdhci: Revert "add optional quirk property to disable card insertion/removal ... (diff) | |
| download | qemu-0a7ac9f9e72246ce41dfb101c77a58de607aef7c.tar.gz qemu-0a7ac9f9e72246ce41dfb101c77a58de607aef7c.tar.xz qemu-0a7ac9f9e72246ce41dfb101c77a58de607aef7c.zip | |
sdhci: add quirk property for card insert interrupt status on Raspberry Pi
This quirk is a workaround for the following hardware behaviour, on
which UEFI (specifically, the bootloader for Windows on Pi2) depends:
1. at boot with an SD card present, the interrupt status/enable
registers are initially zero
2. upon enabling it in the interrupt enable register, the card insert
bit in the interrupt status register is immediately set
3. after a subsequent controller reset, the card insert interrupt does
not fire, even if enabled in the interrupt enable register
Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Message-id: 1456436130-7048-3-git-send-email-Andrew.Baumann@microsoft.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'linux-headers/linux/psci.h')
0 files changed, 0 insertions, 0 deletions