From e9ea679918fbc9a53fa2f2a904aac874ea736036 Mon Sep 17 00:00:00 2001
From: James Yang <James.Yang@freescale.com>
Date: Fri, 8 Feb 2008 16:46:27 -0600
Subject: [PATCH] 85xx: Show DDR memory data rate in addition to the memory
clock frequency.
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>
---
cpu/mpc85xx/cpu.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c
index 4aac599e12..dcd8817378 100644
--- a/cpu/mpc85xx/cpu.c
+++ b/cpu/mpc85xx/cpu.c
@@ -122,13 +122,16 @@ int checkcpu (void)
ddr_ratio = ((gur->porpllsr) & 0x00003e00) >> 9;
switch (ddr_ratio) {
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;
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;
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;
}
--
2.39.5