diff options
| author | Andrew Baumann <Andrew.Baumann@microsoft.com> | 2016-02-25 13:35:30 -0800 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-02-26 15:09:42 +0000 |
| commit | 0a7ac9f9e72246ce41dfb101c77a58de607aef7c (patch) | |
| tree | 5abfc1da84875c139963df6a3e5d8ed4eec5df52 /include/hw/sd | |
| parent | 5c1bc9a234704c3d2001e7751b2d33145202a35f (diff) | |
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 'include/hw/sd')
| -rw-r--r-- | include/hw/sd/sdhci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/hw/sd/sdhci.h b/include/hw/sd/sdhci.h index 4816516a26..0f0c3f1e64 100644 --- a/include/hw/sd/sdhci.h +++ b/include/hw/sd/sdhci.h @@ -76,6 +76,8 @@ typedef struct SDHCIState { uint32_t buf_maxsz; uint16_t data_count; /* current element in FIFO buffer */ uint8_t stopped_state;/* Current SDHC state */ + bool pending_insert_quirk;/* Quirk for Raspberry Pi card insert int */ + bool pending_insert_state; /* Buffer Data Port Register - virtual access point to R and W buffers */ /* Software Reset Register - always reads as 0 */ /* Force Event Auto CMD12 Error Interrupt Reg - write only */ |