added clock cycles after GRSPW reset to make sure CTRL.START bit
write actually have an effect. Wait until reset is completed.
---
c/src/lib/libbsp/sparc/shared/spw/grspw.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw.c
b/c/src/lib/libbsp/sparc/shared/spw/grspw.c
index ebf7fe0..4d66d13 100644
--- a/c/src/lib/libbsp/sparc/shared/spw/grspw.c
+++ b/c/src/lib/libbsp/sparc/shared/spw/grspw.c
@@ -1649,6 +1649,19 @@ static void grspw_hw_reset(GRSPW_DEV *pDev)
SPW_CTRL_WRITE(pDev, SPW_CTRL_RESET); /*reset core*/
SPW_STATUS_WRITE(pDev, SPW_STATUS_TO | SPW_STATUS_CE | SPW_STATUS_ER |
SPW_STATUS_DE | SPW_STATUS_PE |
SPW_STATUS_WE | SPW_STATUS_IA | SPW_STATUS_EE);
/*clear status*/
+
+ /* Add extra writes to make sure we wait the number of clocks required
+ * after reset
+ */
+ SPW_STATUS_WRITE(pDev, SPW_STATUS_TO | SPW_STATUS_CE | SPW_STATUS_ER |
SPW_STATUS_DE | SPW_STATUS_PE |
+ SPW_STATUS_WE | SPW_STATUS_IA | SPW_STATUS_EE); /*clear status*/
+ SPW_STATUS_WRITE(pDev, SPW_STATUS_TO | SPW_STATUS_CE | SPW_STATUS_ER |
SPW_STATUS_DE | SPW_STATUS_PE |
+ SPW_STATUS_WE | SPW_STATUS_IA | SPW_STATUS_EE); /*clear status*/
+ SPW_STATUS_WRITE(pDev, SPW_STATUS_TO | SPW_STATUS_CE | SPW_STATUS_ER |
SPW_STATUS_DE | SPW_STATUS_PE |
+ SPW_STATUS_WE | SPW_STATUS_IA | SPW_STATUS_EE); /*clear status*/
+ SPW_STATUS_WRITE(pDev, SPW_STATUS_TO | SPW_STATUS_CE | SPW_STATUS_ER |
SPW_STATUS_DE | SPW_STATUS_PE |
+ SPW_STATUS_WE | SPW_STATUS_IA | SPW_STATUS_EE); /*clear status*/
+
SPW_CTRL_WRITE(pDev, SPW_CTRL_LINKSTART); /*start link core*/
}
--
1.7.0.4
_______________________________________________
devel mailing list
devel@rtems.org
http://lists.rtems.org/mailman/listinfo/devel
