RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

Fix from Eric Norum. Here is the comment:

Browse Source 
Enable SDMA operation during FREEZE.  It seems that
        disabling SDMA during freeze makes the SMC channels
        work erratically.
This commit is contained in:
Joel Sherrill
1997-09-03 22:05:51 +00:00
parent cf5ef6d52d
commit 8d053460ff
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
c/src/lib/libbsp/m68k/gen68360/startup/init68360.c
View File

@@ -154,7 +154,7 @@ void _Init68360 (void)
/*
* Step 14: More system initialization
* SDCR (Serial DMA configuration register)
* Disable SDMA during FREEZE
* Enable SDMA during FREEZE
* Give SDMA priority over all interrupt handlers
* Set DMA arbiration level to 4
* CICR (CPM interrupt configuration register):
@@ -167,7 +167,7 @@ void _Init68360 (void)
* Vector base 128
* SCCs priority grouped at top of table
*/
m360.sdcr = M360_SDMA_FREEZE | M360_SDMA_SISM_7 | M360_SDMA_SAID_4;
m360.sdcr = M360_SDMA_SISM_7 | M360_SDMA_SAID_4;
m360.cicr = (3 << 22) | (2 << 20) | (1 << 18) | (0 << 16) |
(4 << 13) | (0x1F << 8) | (128);