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bsp/mpc5200: Move comment

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This commit is contained in:
Sebastian Huber
2013-04-19 13:50:34 +02:00
parent 6c094da385
commit e79e9048be
1 changed files with 9 additions and 1 deletions
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10
c/src/lib/libbsp/powerpc/gen5200/start/start.S
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@@ -154,6 +154,14 @@
/* Some fixed values for MPC5x00 registers */ /* Some fixed values for MPC5x00 registers */
.set CSBOOTROM_VAL, 0x0101D910 .set CSBOOTROM_VAL, 0x0101D910
.set CSCONTROL_VAL, 0x91000000 .set CSCONTROL_VAL, 0x91000000
/*
* The DDR_MODE bit is a read-only status and should be written as 0.
*
* XLB_CLK = FVCO / 4
* IPB_CLK = XLB_CLK / 2
* PCI_CLK = IPB_CLK
*/
.set CFG_VAL, 0x00000100 .set CFG_VAL, 0x00000100
.extern boot_card .extern boot_card
@@ -274,7 +282,7 @@ start:
LWI r30, CFG_VAL /* get CFG register content */ LWI r30, CFG_VAL /* get CFG register content */
lwz r30, CFG(r31) /* set SDRAM single data rate / XLB_CLK=FVCO/4 / IPB_CLK=XLB_CLK/2 / PCICLK=IPB_CLK */ lwz r30, CFG(r31) /* set CFG register */