liliana/r-link-uboot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

85xx: Show DDR memory data rate in addition to the memory clock frequency.

Browse Source 
Show the DDR memory data rate in addition to the memory clock
frequency.  For DDR/DDR2 memories the memory data rate is 2x the
memory clock.

Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
James Yang 2008-02-08 16:46:27 -06:00 committed by Andrew Fleming-AFLEMING
parent 591933ca6e
commit e9ea679918
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
cpu/mpc85xx/cpu.c
View File

@ -122,13 +122,16 @@ int checkcpu (void)
ddr_ratio = ((gur->porpllsr) & 0x00003e00) >> 9; ddr_ratio = ((gur->porpllsr) & 0x00003e00) >> 9;
switch (ddr_ratio) { switch (ddr_ratio) {
case 0x0: case 0x0:
printf(" DDR:%4lu MHz, ", sysinfo.freqDDRBus / 2000000); printf(" DDR:%4lu MHz (%lu MT/s data rate), ",
sysinfo.freqDDRBus / 2000000, sysinfo.freqDDRBus / 1000000);
break; break;
case 0x7: case 0x7:
printf(" DDR:%4lu MHz (Synchronous), ", sysinfo.freqDDRBus / 2000000); printf(" DDR:%4lu MHz (%lu MT/s data rate) (Synchronous), ",
sysinfo.freqDDRBus / 2000000, sysinfo.freqDDRBus / 1000000);
break; break;
default: default:
printf(" DDR:%4lu MHz (Asynchronous), ", sysinfo.freqDDRBus / 2000000); printf(" DDR:%4lu MHz (%lu MT/s data rate) (Asynchronous), ",
sysinfo.freqDDRBus / 2000000, sysinfo.freqDDRBus / 1000000);
break; break;
} }