diff options
| author | wdenk <wdenk> | 2004-03-14 00:07:33 +0000 |
|---|---|---|
| committer | wdenk <wdenk> | 2004-03-14 00:07:33 +0000 |
| commit | 0e6d798cb313580acd06ba01626687a557c5159f (patch) | |
| tree | b7b0a635d29fa573b0995c1c5eda0ba33d41810e /cpu/ppc4xx/speed.c | |
| parent | c40b29568232761e33400e58be86b15a167d3422 (diff) | |
* Patch by Travis Sawyer, 01 Mar 2004:
Ocotea:
- Add IBM PPC440GX Ref Platform support (Ocotea)
Original code by Paul Reynolds <PaulReynolds@lhsolutions.com>
Adapted to U-Boot and 440GX port
440gx_enet.c:
- Add gracious handling of all Ethernet Pin Selections for 440GX
- Add RGMII selection for Cicada CIS8201 Gigabit PHY
ppc440.h:
- Add needed bit definitions
- Fix formatting
* Patch by Carl Riechers, 1 Mar 2004:
Add PPC440GX prbdv0 divider to fix memory clock calculation.
* Patch by Stephan Linz, 27 Feb 2004
- avoid problems for targets without NFS download support
Diffstat (limited to 'cpu/ppc4xx/speed.c')
| -rw-r--r-- | cpu/ppc4xx/speed.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/cpu/ppc4xx/speed.c b/cpu/ppc4xx/speed.c index e776050bcc..7172fe3ea8 100644 --- a/cpu/ppc4xx/speed.c +++ b/cpu/ppc4xx/speed.c @@ -247,7 +247,7 @@ void get_sys_info (sys_info_t * sysInfo) unsigned long temp1; unsigned long lfdiv; unsigned long m; - + unsigned long prbdv0; /* Extract configured divisors */ mfsdr( sdr_sdstp0,strp0 ); @@ -263,6 +263,7 @@ void get_sys_info (sys_info_t * sysInfo) sysInfo->pllOpbDiv = temp ? temp : 4; temp = (strp1 & PLLSYS1_PERCLK_DIV_MASK) >> 24; sysInfo->pllExtBusDiv = temp ? temp : 4; + prbdv0 = (strp0 >> 2) & 0x7; /* Calculate 'M' based on feedback source */ temp = (strp0 & PLLSYS0_SEL_MASK) >> 27; @@ -284,7 +285,7 @@ void get_sys_info (sys_info_t * sysInfo) /* Now calculate the individual clocks */ sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m>>1); sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA; - sysInfo->freqPLB = sysInfo->freqVCOMhz/sysInfo->pllFwdDivB; + sysInfo->freqPLB = sysInfo->freqVCOMhz/sysInfo->pllFwdDivB/prbdv0; sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv; sysInfo->freqEPB = sysInfo->freqOPB/sysInfo->pllExtBusDiv; |