diff options
Diffstat (limited to 'cpu/mpc86xx/speed.c')
| -rw-r--r-- | cpu/mpc86xx/speed.c | 69 |
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 |