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GRSPW: added clock cycles after GRSPW reset

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added clock cycles after GRSPW reset to make sure CTRL.START bit
write actually have an effect. Wait until reset is completed.
This commit is contained in:
Daniel Hellstrom
2015-04-17 01:10:21 +02:00
parent 56fc78090d
commit d2a94ab97f
1 changed files with 13 additions and 0 deletions
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c/src/lib/libbsp/sparc/shared/spw/grspw.c
+13
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@@ -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*/
}