[Bug 204521] [new driver] [request] Port rtsx from OpenBSD to FreeBSD

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204521

--- Comment #125 from jyoung15 at gmail.com ---
I've made some progress with the issue I'm having.  I noticed in the dmesg
output it seems to incorrectly detect when the card is inserted and removed. 
Specifically the issue seems to be in rtsx_is_card_present.  As a very quick
and dirty hack, I made this change so it always reports the card as present:

diff --git a/rtsx.c b/rtsx.c
index 0010bc7..a38668e 100644
--- a/rtsx.c
+++ b/rtsx.c
@@ -1122,7 +1122,8 @@ rtsx_is_card_present(struct rtsx_softc *sc)
        uint32_t status;

        status = READ4(sc, RTSX_BIPR);
-       return (status & RTSX_SD_EXIST);
+       // return (status & RTSX_SD_EXIST);
+       return RTSX_SD_EXIST;
 }


After making this change I'm able to see the device in /dev and mount the
filesystem successfully.  So it seems the issue is related to detecting if the
card is present on the BIPR register.

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