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Simple VME FMC Carrier SVEC - Software
Commit 3457f310 authored by Tomasz Wlostowski's avatar Tomasz Wlostowski
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kernel/svec-drv.c: fix DTACK on both A32/A24 issue on buggy VME64x cores (see ohwr.org issue #943)

parent d97627a1
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kernel/svec-drv.c
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...@@ -498,6 +498,15 @@ int svec_setup_csr(struct svec_dev *svec) ...@@ -498,6 +498,15 @@ int svec_setup_csr(struct svec_dev *svec)
memset(ader, 0, sizeof(ader)); memset(ader, 0, sizeof(ader));
/* Below is a hack to keep the VME core function disabling work on bitstreams
containing a buggy VME core (commit b2fc3ce7): set bit 0 (XAM_MODE) to 1
to disable given function (because neither function 0 nor 1 have anything
in their extended capability sets, setting XAM_MODE = 1 effectively disables
the function. */
ader[0][3] = 1;
ader[1][3] = 1;
/* do address relocation for FUN0/1 */ /* do address relocation for FUN0/1 */
ader[func][0] = (svec->cfg_cur.vme_base >> 24) & 0xFF; ader[func][0] = (svec->cfg_cur.vme_base >> 24) & 0xFF;
ader[func][1] = (svec->cfg_cur.vme_base >> 16) & 0xFF; ader[func][1] = (svec->cfg_cur.vme_base >> 16) & 0xFF;
......
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