uint ratio[CONFIG_SYS_FSL_NUM_CC_PLLS];
unsigned long sysclk = CONFIG_SYS_CLK_FREQ;
uint mem_pll_rat;
+#ifdef CONFIG_SYS_FSL_SINGLE_SOURCE_CLK
+ uint single_src;
+#endif
sys_info->freq_systembus = sysclk;
+#ifdef CONFIG_SYS_FSL_SINGLE_SOURCE_CLK
+ /*
+ * DDR_REFCLK_SEL rcw bit is used to determine if DDR PLLS
+ * are driven by separate DDR Refclock or single source
+ * differential clock.
+ */
+ single_src = (in_be32(&gur->rcwsr[5]) >>
+ FSL_CORENET2_RCWSR5_DDR_REFCLK_SEL_SHIFT) &
+ FSL_CORENET2_RCWSR5_DDR_REFCLK_SEL_MASK;
+ /*
+ * For single source clocking, both ddrclock and syclock
+ * are driven by differential sysclock.
+ */
+ if (single_src == FSL_CORENET2_RCWSR5_DDR_REFCLK_SINGLE_CLK) {
+ printf("Single Source Clock Configuration\n");
+ sys_info->freq_ddrbus = CONFIG_SYS_CLK_FREQ;
+ } else
+#endif
#ifdef CONFIG_DDR_CLK_FREQ
- sys_info->freq_ddrbus = CONFIG_DDR_CLK_FREQ;
+ sys_info->freq_ddrbus = CONFIG_DDR_CLK_FREQ;
#else
- sys_info->freq_ddrbus = sysclk;
+ sys_info->freq_ddrbus = sysclk;
#endif
sys_info->freq_systembus *= (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
mem_pll_rat = (in_be32(&gur->rcwsr[0]) >>
FSL_CORENET_RCWSR0_MEM_PLL_RAT_SHIFT)
& FSL_CORENET_RCWSR0_MEM_PLL_RAT_MASK;
+ /* T4240/T4160 Rev2.0 MEM_PLL_RAT uses a value which is half of
+ * T4240/T4160 Rev1.0. eg. It's 12 in Rev1.0, however, for Rev2.0
+ * it uses 6.
+ */
+#if defined(CONFIG_PPC_T4240) || defined(CONFIG_PPC_T4160)
+ if (SVR_MAJ(get_svr()) >= 2)
+ mem_pll_rat *= 2;
+#endif
if (mem_pll_rat > 2)
sys_info->freq_ddrbus *= mem_pll_rat;
else
sys_info->freq_processor[cpu] =
freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel];
}
-#ifdef CONFIG_PPC_B4860
+#if defined(CONFIG_PPC_B4860) || defined(CONFIG_PPC_T2080) || \
+ defined(CONFIG_PPC_T2081)
#define FM1_CLK_SEL 0xe0000000
#define FM1_CLK_SHIFT 29
#else
case 4:
sys_info->freq_fman[1] = freq_c_pll[CONFIG_SYS_FM2_CLK + 1] / 4;
break;
+ case 5:
+ sys_info->freq_fman[1] = sys_info->freq_systembus;
+ break;
case 6:
sys_info->freq_fman[1] = freq_c_pll[CONFIG_SYS_FM2_CLK] / 2;
break;