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| author | Haiying Wang <Haiying.Wang@freescale.com> | 2009-01-15 11:58:35 -0500 |
|---|---|---|
| committer | Andrew Fleming-AFLEMING <afleming@freescale.com> | 2009-01-23 17:03:14 -0600 |
| commit | 2fc7eb0cfc608c9369001d57a0411af5e6a58f7c (patch) | |
| tree | 2021c2d473dcefae9113894a8f8c3b6b1a9381f8 /cpu/mpc85xx/speed.c | |
| parent | bf5b1f0c0d28ce062e1d368680632dfb099de692 (diff) | |
| download | u-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.c | 10 |
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; |