[U-Boot-Users] Bug in cpu/arm920t/imx/speed.c

22 Oct 2004

Hi there,
there are two bugs in cpu/arm920t/imx/speed.c preventing us from determine the 
correct speed of the processor.
CHANGELOG:
* Patch by Steven Scholz, 22 Oct 2004:
   - Fix masking bug in cpu/arm920t/imx/speed.c
-- 
Steven Scholz
imc Measurement & Control


Index: u-boot.SoC/cpu/arm920t/imx/speed.c
===================================================================
RCS file: /cvsroot/u-boot/u-boot/cpu/arm920t/imx/speed.c,v
retrieving revision 1.1
diff -u -r1.1 speed.c

--- u-boot.SoC/cpu/arm920t/imx/speed.c	9 Oct 2004 22:21:30 -0000	1.1
+++ u-boot.SoC/cpu/arm920t/imx/speed.c	22 Oct 2004 06:59:53 -0000
@@ -41,9 +41,9 @@
 {
    /* FIXME: We assume System_SEL = 0 here */
    u32 spctl0 = SPCTL0;
+	u32 mfn = (spctl0 >>  0) & 0x3ff;
    u32 mfi = (spctl0 >> 10) & 0xf;
-	u32 mfn = spctl0 & 0x3f;
-	u32 mfd = (spctl0 >> 16) & 0x3f;
+	u32 mfd = (spctl0 >> 16) & 0x3ff;
    u32 pd =  (spctl0 >> 26) & 0xf;

    mfi = mfi<=5 ? 5 : mfi;
@@ -55,9 +55,9 @@
 {
    /* FIXME: We assume System_SEL = 0 here */
    u32 mpctl0 = MPCTL0;
+	u32 mfn = (mpctl0 >>  0) & 0x3ff;
    u32 mfi = (mpctl0 >> 10) & 0xf;
-	u32 mfn = mpctl0 & 0x3f;
-	u32 mfd = (mpctl0 >> 16) & 0x3f;
+	u32 mfd = (mpctl0 >> 16) & 0x3ff;
    u32 pd =  (mpctl0 >> 26) & 0xf;

    mfi = mfi<=5 ? 5 : mfi;
@@ -74,7 +74,6 @@
 ulong get_HCLK(void)
 {
    u32 bclkdiv = (( CSCR >> 10 ) & 0xf) + 1;
-	printf("bclkdiv: %d\n", bclkdiv);
    return get_systemPLLCLK() / bclkdiv;
 }


    

Steven Scholz

Steven Scholz

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