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 --- This patch has been tested on MPC8572DS board. Two CPU's frequencies showed up correctly, "fdt print" showed clock-frequency was filled in fdt blob correctly. cpu/mpc85xx/cpu.c | 7 +++++-- cpu/mpc85xx/fdt.c | 17 +++++++++++++++-- cpu/mpc85xx/speed.c | 10 ++++++---- include/e500.h | 5 ++++- 4 files changed, 30 insertions(+), 9 deletions(-)
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c index c780687..ffdda0d 100644 --- a/cpu/mpc85xx/cpu.c +++ b/cpu/mpc85xx/cpu.c @@ -91,6 +91,7 @@ int checkcpu (void) #else u32 ddr_ratio = 0; #endif + int i;
svr = get_svr(); ver = SVR_SOC_VER(svr); @@ -142,8 +143,10 @@ int checkcpu (void)
get_sys_info(&sysinfo);
- puts("Clock Configuration:\n"); - printf(" CPU:%-4s MHz, ", strmhz(buf1, sysinfo.freqProcessor)); + puts("Clock Configuration:\n "); + for (i = 0; i < CONFIG_NUM_CPUS; i++) + printf("CPU%d:%-4s MHz, ", + i,strmhz(buf1, sysinfo.freqProcessor[i])); printf("CCB:%-4s MHz,\n", strmhz(buf1, sysinfo.freqSystemBus));
switch (ddr_ratio) { diff --git a/cpu/mpc85xx/fdt.c b/cpu/mpc85xx/fdt.c index 59aafb1..4291e94 100644 --- a/cpu/mpc85xx/fdt.c +++ b/cpu/mpc85xx/fdt.c @@ -212,6 +212,10 @@ void fdt_add_enet_stashing(void *fdt)
void ft_cpu_setup(void *blob, bd_t *bd) { + int off; + int val; + sys_info_t sysinfo; + /* delete crypto node if not on an E-processor */ if (!IS_E_PROCESSOR(get_svr())) fdt_fixup_crypto_node(blob, 0); @@ -227,8 +231,17 @@ void ft_cpu_setup(void *blob, bd_t *bd) "timebase-frequency", bd->bi_busfreq / 8, 1); do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, "bus-frequency", bd->bi_busfreq, 1); - do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, - "clock-frequency", bd->bi_intfreq, 1); + + get_sys_info(&sysinfo); + off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); + while (off != -FDT_ERR_NOTFOUND) { + u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); + val = cpu_to_fdt32(sysinfo.freqProcessor[*reg]); + fdt_setprop(blob, off, "clock-frequency", &val, 4); + off = fdt_node_offset_by_prop_value(blob, off, "device_type", + "cpu", 4); + } + do_fixup_by_prop_u32(blob, "device_type", "soc", 4, "bus-frequency", bd->bi_busfreq, 1); #ifdef CONFIG_QE diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c index 1e0f483..f123a8a 100644 --- a/cpu/mpc85xx/speed.c +++ b/cpu/mpc85xx/speed.c @@ -37,17 +37,19 @@ 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 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; @@ -79,7 +81,7 @@ 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;
diff --git a/include/e500.h b/include/e500.h index 1971eee..a7f371a 100644 --- a/include/e500.h +++ b/include/e500.h @@ -8,9 +8,12 @@
#ifndef __ASSEMBLY__
+#ifndef CONFIG_NUM_CPUS +#define CONFIG_NUM_CPUS 1 +#endif typedef struct { - unsigned long freqProcessor; + unsigned long freqProcessor[CONFIG_NUM_CPUS]; unsigned long freqSystemBus; unsigned long freqDDRBus; } MPC85xx_SYS_INFO;