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| author | Daniel Hellstrom <daniel@gaisler.com> | 2014-05-02 14:28:44 +0200 |
|---|---|---|
| committer | Daniel Hellstrom <daniel@gaisler.com> | 2015-04-17 01:10:21 +0200 |
| commit | d2a94ab97f014c27a86a3183794387dba7d36a22 (patch) | |
| tree | 0987bcaf167b3288f6cdba0cf3da90736b07a848 /c/src/lib/libbsp/sparc/shared/spw | |
| parent | GRSPW_PKT: Add support for Interrupt-codes (diff) | |
| download | rtems-d2a94ab97f014c27a86a3183794387dba7d36a22.tar.bz2 | |
GRSPW: added clock cycles after GRSPW reset
added clock cycles after GRSPW reset to make sure CTRL.START bit
write actually have an effect. Wait until reset is completed.
Diffstat (limited to 'c/src/lib/libbsp/sparc/shared/spw')
| -rw-r--r-- | 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 ebf7fe00ee..4d66d133bb 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*/ } |