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mips_ejtag.c: disable DMA for all platforms 

DMA seems to be broken in many ways. Don't trust it!

Change-Id: I7e28608f299abdf78d02a967c62849b6b2ce5985
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-on: http://openocd.zylin.com/1936
Tested-by: jenkins
Reviewed-by: Antony Pavlov <antonynpavlov@gmail.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
This commit is contained in:
Oleksij Rempel 2014-01-27 10:07:38 +01:00 committed by Paul Fertser
parent 09e9625d6c
commit d2ddb53f7d
1 changed files with 5 additions and 2 deletions
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7
src/target/mips_ejtag.c
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@ -386,8 +386,11 @@ int mips_ejtag_init(struct mips_ejtag *ejtag_info)
ejtag_info->impcode & EJTAG_IMP_NODMA ? " noDMA" : " DMA", ejtag_info->impcode & EJTAG_IMP_NODMA ? " noDMA" : " DMA",
ejtag_info->impcode & EJTAG_DCR_MIPS64 ? " MIPS64" : " MIPS32"); ejtag_info->impcode & EJTAG_DCR_MIPS64 ? " MIPS64" : " MIPS32");
if ((ejtag_info->impcode & EJTAG_IMP_NODMA) == 0) if ((ejtag_info->impcode & EJTAG_IMP_NODMA) == 0) {
LOG_DEBUG("EJTAG: DMA Access Mode Support Enabled"); LOG_DEBUG("EJTAG: DMA Access Mode detected. Disabling to "
"workaround current broken code.");
ejtag_info->impcode |= EJTAG_IMP_NODMA;
}
/* set initial state for ejtag control reg */ /* set initial state for ejtag control reg */
ejtag_info->ejtag_ctrl = EJTAG_CTRL_ROCC | EJTAG_CTRL_PRACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_SETDEV; ejtag_info->ejtag_ctrl = EJTAG_CTRL_ROCC | EJTAG_CTRL_PRACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_SETDEV;