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-rw-r--r--sys/dev/sdhci/sdhci.c9
-rw-r--r--sys/dev/sdhci/sdhci.h2
2 files changed, 9 insertions, 2 deletions
diff --git a/sys/dev/sdhci/sdhci.c b/sys/dev/sdhci/sdhci.c
index c4afb8a..1fc1358 100644
--- a/sys/dev/sdhci/sdhci.c
+++ b/sys/dev/sdhci/sdhci.c
@@ -835,8 +835,13 @@ sdhci_finish_command(struct sdhci_slot *slot)
uint8_t extra = 0;
for (i = 0; i < 4; i++) {
uint32_t val = RD4(slot, SDHCI_RESPONSE + i * 4);
- slot->curcmd->resp[3 - i] = (val << 8) + extra;
- extra = val >> 24;
+ if (slot->quirks & SDHCI_QUIRK_DONT_SHIFT_RESPONSE)
+ slot->curcmd->resp[3 - i] = val;
+ else {
+ slot->curcmd->resp[3 - i] =
+ (val << 8) | extra;
+ extra = val >> 24;
+ }
}
} else
slot->curcmd->resp[0] = RD4(slot, SDHCI_RESPONSE);
diff --git a/sys/dev/sdhci/sdhci.h b/sys/dev/sdhci/sdhci.h
index cda845c..d136409 100644
--- a/sys/dev/sdhci/sdhci.h
+++ b/sys/dev/sdhci/sdhci.h
@@ -57,6 +57,8 @@
#define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL (1<<11)
/* SDHCI_CAPABILITIES is invalid */
#define SDHCI_QUIRK_MISSING_CAPS (1<<12)
+/* Hardware shifts the 136-bit response, don't do it in software. */
+#define SDHCI_QUIRK_DONT_SHIFT_RESPONSE (1<<13)
/*
* Controller registers
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