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authorKim Phillips <kim.phillips@freescale.com>2009-09-25 18:19:44 -0500
committerKim Phillips <kim.phillips@freescale.com>2009-09-26 21:19:38 -0500
commitc7190f028fa950d4d36b6d0b4bb3fc72602ec54c (patch)
treeea0ece278a5c2ac1bae9a1bdbe66ba796368f55f /include/configs/MPC837XEMDS.h
parent00ec0ff549b8cb6fb6d40e275aeb5a460642a3bd (diff)
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mpc83xx: retain POR values of non-configured ACR, SPCR, SCCR, and LCRR bitfields
some LCRR bits are not documented throughout the 83xx family RMs. New board porters copying similar board configurations might omit setting e.g., DBYP since it was not documented in their SoC's RM. Prevent them bricking their board by retaining power on reset values in bit fields that the board porter doesn't explicitly configure via CONFIG_SYS_<registername>_<bitfield> assignments in the board config file. also move LCRR assignment to cpu_init_r[am] to help ensure no transactions are being executed via the local bus while CLKDIV is being modified. also start to use i/o accessors. Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'include/configs/MPC837XEMDS.h')
-rw-r--r--include/configs/MPC837XEMDS.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/configs/MPC837XEMDS.h b/include/configs/MPC837XEMDS.h
index a190a50..abeb6a2 100644
--- a/include/configs/MPC837XEMDS.h
+++ b/include/configs/MPC837XEMDS.h
@@ -220,7 +220,8 @@
/*
* Local Bus Configuration & Clock Setup
*/
-#define CONFIG_SYS_LCRR (LCRR_DBYP | LCRR_CLKDIV_8)
+#define CONFIG_SYS_LCRR_DBYP LCRR_DBYP
+#define CONFIG_SYS_LCRR_CLKDIV LCRR_CLKDIV_8
#define CONFIG_SYS_LBC_LBCR 0x00000000
/*