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authorAndrew Baumann <Andrew.Baumann@microsoft.com>2016-02-25 13:35:30 -0800
committerPeter Maydell <peter.maydell@linaro.org>2016-02-26 15:09:42 +0000
commit0a7ac9f9e72246ce41dfb101c77a58de607aef7c (patch)
tree5abfc1da84875c139963df6a3e5d8ed4eec5df52 /include/hw/sd/sdhci.h
parent5c1bc9a234704c3d2001e7751b2d33145202a35f (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/sdhci.h')
-rw-r--r--include/hw/sd/sdhci.h2
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 */