summaryrefslogtreecommitdiff
path: root/cpu/mpc85xx/speed.c
diff options
context:
space:
mode:
authorHaiying Wang <Haiying.Wang@freescale.com>2009-01-15 11:58:35 -0500
committerAndrew Fleming-AFLEMING <afleming@freescale.com>2009-01-23 17:03:14 -0600
commit2fc7eb0cfc608c9369001d57a0411af5e6a58f7c (patch)
tree2021c2d473dcefae9113894a8f8c3b6b1a9381f8 /cpu/mpc85xx/speed.c
parentbf5b1f0c0d28ce062e1d368680632dfb099de692 (diff)
downloadu-boot-imx-2fc7eb0cfc608c9369001d57a0411af5e6a58f7c.zip
u-boot-imx-2fc7eb0cfc608c9369001d57a0411af5e6a58f7c.tar.gz
u-boot-imx-2fc7eb0cfc608c9369001d57a0411af5e6a58f7c.tar.bz2
Add secondary CPUs processor frequency for e500 core
This patch updates e500 freqProcessor to array based on CONFIG_NUM_CPUS, and prints each CPU's frequency separately. It also fixes up each CPU's frequency in "clock-frequency" of fdt blob. Signed-off-by: James Yang <James.Yang@freescale.com> Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Diffstat (limited to 'cpu/mpc85xx/speed.c')
-rw-r--r--cpu/mpc85xx/speed.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c
index 0d55228..b0f47e0 100644
--- a/cpu/mpc85xx/speed.c
+++ b/cpu/mpc85xx/speed.c
@@ -39,17 +39,19 @@ void get_sys_info (sys_info_t * sysInfo)
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
uint plat_ratio,e500_ratio,half_freqSystemBus;
uint lcrr_div;
+ int i;
plat_ratio = (gur->porpllsr) & 0x0000003e;
plat_ratio >>= 1;
sysInfo->freqSystemBus = plat_ratio * CONFIG_SYS_CLK_FREQ;
- e500_ratio = (gur->porpllsr) & 0x003f0000;
- e500_ratio >>= 16;
/* Divide before multiply to avoid integer
* overflow for processor speeds above 2GHz */
half_freqSystemBus = sysInfo->freqSystemBus/2;
- sysInfo->freqProcessor = e500_ratio*half_freqSystemBus;
+ for (i = 0; i < CONFIG_NUM_CPUS; i++) {
+ e500_ratio = ((gur->porpllsr) >> (i * 8 + 16)) & 0x3f;
+ sysInfo->freqProcessor[i] = e500_ratio * half_freqSystemBus;
+ }
/* Note: freqDDRBus is the MCLK frequency, not the data rate. */
sysInfo->freqDDRBus = sysInfo->freqSystemBus;
@@ -105,7 +107,7 @@ int get_clocks (void)
dfbrg = (sccr & SCCR_DFBRG_MSK) >> SCCR_DFBRG_SHIFT;
#endif
get_sys_info (&sys_info);
- gd->cpu_clk = sys_info.freqProcessor;
+ gd->cpu_clk = sys_info.freqProcessor[0];
gd->bus_clk = sys_info.freqSystemBus;
gd->mem_clk = sys_info.freqDDRBus;
gd->lbc_clk = sys_info.freqLocalBus;