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authorJon Loeliger <jdl@jdl.com>2006-05-31 13:55:35 -0500
committerJon Loeliger <jdl@jdl.com>2006-05-31 14:01:32 -0500
commitc934f655f9aeca70a5c5f88b465d9e9d57a8d22e (patch)
tree70f5eb726cc7331d9091ed2c402c8e9a6fecb136 /cpu/mpc86xx/speed.c
parentcb5965fb95b77a49f4e6af95248e0c849f4af03e (diff)
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Review cleanups.
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Diffstat (limited to 'cpu/mpc86xx/speed.c')
-rw-r--r--cpu/mpc86xx/speed.c69
1 files changed, 10 insertions, 59 deletions
diff --git a/cpu/mpc86xx/speed.c b/cpu/mpc86xx/speed.c
index a08ae5f..5e05ab8 100644
--- a/cpu/mpc86xx/speed.c
+++ b/cpu/mpc86xx/speed.c
@@ -1,6 +1,6 @@
/*
* Copyright 2004 Freescale Semiconductor.
- * Jeff Brown (jeffrey@freescale.com)
+ * Jeff Brown
* Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
*
* (C) Copyright 2000-2002
@@ -29,9 +29,6 @@
#include <mpc86xx.h>
#include <asm/processor.h>
-unsigned long get_board_sys_clk(ulong dummy);
-unsigned long get_sysclk_from_px_regs(void);
-
void get_sys_info (sys_info_t *sysInfo)
{
@@ -39,11 +36,11 @@ void get_sys_info (sys_info_t *sysInfo)
volatile ccsr_gur_t *gur = &immap->im_gur;
uint plat_ratio, e600_ratio;
- plat_ratio = (gur->porpllsr) & 0x0000003e;
+ plat_ratio = (gur->porpllsr) & 0x0000003e;
plat_ratio >>= 1;
switch(plat_ratio) {
- case 0x0:
+ case 0x0:
sysInfo->freqSystemBus = 16 * CONFIG_SYS_CLK_FREQ;
break;
case 0x02:
@@ -55,19 +52,14 @@ void get_sys_info (sys_info_t *sysInfo)
case 0x09:
case 0x0a:
case 0x0c:
- case 0x10:
- sysInfo->freqSystemBus = plat_ratio * CONFIG_SYS_CLK_FREQ;
- break;
+ case 0x10:
+ sysInfo->freqSystemBus = plat_ratio * CONFIG_SYS_CLK_FREQ;
+ break;
default:
sysInfo->freqSystemBus = 0;
break;
}
-#if 0
- printf("assigned system bus freq = %d for plat ratio 0x%08lx\n",
- sysInfo->freqSystemBus, plat_ratio);
-#endif
-
e600_ratio = (gur->porpllsr) & 0x003f0000;
e600_ratio >>= 16;
@@ -75,13 +67,13 @@ void get_sys_info (sys_info_t *sysInfo)
case 0x10:
sysInfo->freqProcessor = 2 * sysInfo->freqSystemBus;
break;
- case 0x19:
+ case 0x19:
sysInfo->freqProcessor = 5 * sysInfo->freqSystemBus/2;
break;
case 0x20:
sysInfo->freqProcessor = 3 * sysInfo->freqSystemBus;
break;
- case 0x39:
+ case 0x39:
sysInfo->freqProcessor = 7 * sysInfo->freqSystemBus/2;
break;
case 0x28:
@@ -90,16 +82,10 @@ void get_sys_info (sys_info_t *sysInfo)
case 0x1d:
sysInfo->freqProcessor = 9 * sysInfo->freqSystemBus/2;
break;
- default:
- /* JB - Emulator workaround until real cop is plugged in */
- /* sysInfo->freqProcessor = 3 * sysInfo->freqSystemBus; */
+ default:
sysInfo->freqProcessor = e600_ratio + sysInfo->freqSystemBus;
break;
}
-#if 0
- printf("assigned processor freq = %d for e600 ratio 0x%08lx\n",
- sysInfo->freqProcessor, e600_ratio);
-#endif
}
@@ -128,6 +114,7 @@ int get_clocks(void)
* get_bus_freq
* Return system bus freq in Hz
*/
+
ulong get_bus_freq(ulong dummy)
{
ulong val;
@@ -139,42 +126,6 @@ ulong get_bus_freq(ulong dummy)
return val;
}
-unsigned long get_sysclk_from_px_regs()
-{
- ulong val;
- u8 vclkh, vclkl;
-
- vclkh = in8(PIXIS_BASE + PIXIS_VCLKH);
- vclkl = in8(PIXIS_BASE + PIXIS_VCLKL);
-
- if ((vclkh == 0x84) && (vclkl == 0x07)) {
- val = 33000000;
- }
- if ((vclkh == 0x3F) && (vclkl == 0x20)) {
- val = 40000000;
- }
- if ((vclkh == 0x3F) && (vclkl == 0x2A)) {
- val = 50000000;
- }
- if ((vclkh == 0x24) && (vclkl == 0x04)) {
- val = 66000000;
- }
- if ((vclkh == 0x3F) && (vclkl == 0x4B)) {
- val = 83000000;
- }
- if ((vclkh == 0x3F) && (vclkl == 0x5C)) {
- val = 100000000;
- }
- if ((vclkh == 0xDF) && (vclkl == 0x3B)) {
- val = 134000000;
- }
- if ((vclkh == 0xDF) && (vclkl == 0x4B)) {
- val = 166000000;
- }
-
- return val;
-}
-
/*
* get_board_sys_clk