diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/speed.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/speed.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c index adf09efa27..d516d4e4a6 100644 --- a/arch/powerpc/cpu/mpc85xx/speed.c +++ b/arch/powerpc/cpu/mpc85xx/speed.c @@ -74,28 +74,33 @@ void get_sys_info(sys_info_t *sys_info) 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 + uint ddr_refclk_sel; + unsigned int porsr1_sys_clk; + porsr1_sys_clk = in_be32(&gur->porsr1) >> FSL_DCFG_PORSR1_SYSCLK_SHIFT + & FSL_DCFG_PORSR1_SYSCLK_MASK; + if (porsr1_sys_clk == FSL_DCFG_PORSR1_SYSCLK_DIFF) + sys_info->diff_sysclk = 1; + else + sys_info->diff_sysclk = 0; + /* * 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]) >> + ddr_refclk_sel = (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 + * For single source clocking, both ddrclock and sysclock * are driven by differential sysclock. */ - if (single_src == FSL_CORENET2_RCWSR5_DDR_REFCLK_SINGLE_CLK) { - printf("Single Source Clock Configuration\n"); + if (ddr_refclk_sel == FSL_CORENET2_RCWSR5_DDR_REFCLK_SINGLE_CLK) sys_info->freq_ddrbus = CONFIG_SYS_CLK_FREQ; - } else + else #endif #ifdef CONFIG_DDR_CLK_FREQ sys_info->freq_ddrbus = CONFIG_DDR_CLK_FREQ; @@ -107,6 +112,13 @@ void get_sys_info(sys_info_t *sys_info) mem_pll_rat = (in_be32(&gur->rcwsr[0]) >> FSL_CORENET_RCWSR0_MEM_PLL_RAT_SHIFT) & FSL_CORENET_RCWSR0_MEM_PLL_RAT_MASK; +#ifdef CONFIG_SYS_FSL_ERRATUM_A007212 + if (mem_pll_rat == 0) { + mem_pll_rat = (in_be32(&gur->rcwsr[0]) >> + FSL_CORENET_RCWSR0_MEM_PLL_RAT_RESV_SHIFT) & + FSL_CORENET_RCWSR0_MEM_PLL_RAT_MASK; + } +#endif /* 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. @@ -151,8 +163,8 @@ void get_sys_info(sys_info_t *sys_info) sys_info->freq_processor[cpu] = freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel]; } -#if defined(CONFIG_PPC_B4860) || defined(CONFIG_PPC_T2080) || \ - defined(CONFIG_PPC_T2081) +#if defined(CONFIG_PPC_B4860) || defined(CONFIG_PPC_B4420) || \ + defined(CONFIG_PPC_T2080) || defined(CONFIG_PPC_T2081) #define FM1_CLK_SEL 0xe0000000 #define FM1_CLK_SHIFT 29 #else @@ -336,6 +348,10 @@ void get_sys_info(sys_info_t *sys_info) #endif /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */ +#ifdef CONFIG_U_QE + sys_info->freq_qe = sys_info->freq_systembus / 2; +#endif + #else /* CONFIG_FSL_CORENET */ uint plat_ratio, e500_ratio, half_freq_systembus; int i; |
