X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fcpu%2Fmpc85xx%2Fspeed.c;h=adf09efa2795aa4f0934ddf4d0439938c07a46b1;hb=1cad23c5f471d695bed1e3907e30caee3c2a3056;hp=ce4753245501ac3c9456a7270aa2d683f1c320c7;hpb=1fed668b3fb9c35932f58af00ff5539239fa4e1d;p=oweals%2Fu-boot.git diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c index ce47532455..adf09efa27 100644 --- a/arch/powerpc/cpu/mpc85xx/speed.c +++ b/arch/powerpc/cpu/mpc85xx/speed.c @@ -7,23 +7,7 @@ * (C) Copyright 2000 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include @@ -34,14 +18,25 @@ DECLARE_GLOBAL_DATA_PTR; + +#ifndef CONFIG_SYS_FSL_NUM_CC_PLLS +#define CONFIG_SYS_FSL_NUM_CC_PLLS 6 +#endif /* --------------------------------------------------------------- */ -void get_sys_info (sys_info_t * sysInfo) +void get_sys_info(sys_info_t *sys_info) { volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); +#ifdef CONFIG_FSL_IFC + struct fsl_ifc *ifc_regs = (void *)CONFIG_SYS_IFC_ADDR; + u32 ccr; +#endif #ifdef CONFIG_FSL_CORENET volatile ccsr_clk_t *clk = (void *)(CONFIG_SYS_FSL_CORENET_CLK_ADDR); unsigned int cpu; +#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 + int cc_group[12] = CONFIG_SYS_FSL_CLUSTER_CLOCKS; +#endif const u8 core_cplx_PLL[16] = { [ 0] = 0, /* CC1 PPL / 1 */ @@ -58,7 +53,7 @@ void get_sys_info (sys_info_t * sysInfo) [14] = 3, /* CC4 PPL / 4 */ }; - const u8 core_cplx_PLL_div[16] = { + const u8 core_cplx_pll_div[16] = { [ 0] = 1, /* CC1 PPL / 1 */ [ 1] = 2, /* CC1 PPL / 2 */ [ 2] = 4, /* CC1 PPL / 4 */ @@ -72,46 +67,230 @@ void get_sys_info (sys_info_t * sysInfo) [13] = 2, /* CC4 PPL / 2 */ [14] = 4, /* CC4 PPL / 4 */ }; - uint lcrr_div, i, freqCC_PLL[4], rcw_tmp; - uint ratio[4]; + uint i, freq_c_pll[CONFIG_SYS_FSL_NUM_CC_PLLS]; +#if !defined(CONFIG_FM_PLAT_CLK_DIV) || !defined(CONFIG_PME_PLAT_CLK_DIV) + uint rcw_tmp; +#endif + 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 - sysInfo->freqSystemBus = sysclk; - sysInfo->freqDDRBus = sysclk; + 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; +#else + sys_info->freq_ddrbus = sysclk; +#endif - sysInfo->freqSystemBus *= (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f; - mem_pll_rat = (in_be32(&gur->rcwsr[0]) >> 17) & 0x1f; + 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) - sysInfo->freqDDRBus *= mem_pll_rat; + sys_info->freq_ddrbus *= mem_pll_rat; else - sysInfo->freqDDRBus = sysInfo->freqSystemBus * mem_pll_rat; + sys_info->freq_ddrbus = sys_info->freq_systembus * mem_pll_rat; - ratio[0] = (in_be32(&clk->pllc1gsr) >> 1) & 0x3f; - ratio[1] = (in_be32(&clk->pllc2gsr) >> 1) & 0x3f; - ratio[2] = (in_be32(&clk->pllc3gsr) >> 1) & 0x3f; - ratio[3] = (in_be32(&clk->pllc4gsr) >> 1) & 0x3f; - for (i = 0; i < 4; i++) { + for (i = 0; i < CONFIG_SYS_FSL_NUM_CC_PLLS; i++) { + ratio[i] = (in_be32(&clk->pllcgsr[i].pllcngsr) >> 1) & 0x3f; if (ratio[i] > 4) - freqCC_PLL[i] = sysclk * ratio[i]; + freq_c_pll[i] = sysclk * ratio[i]; else - freqCC_PLL[i] = sysInfo->freqSystemBus * ratio[i]; + freq_c_pll[i] = sys_info->freq_systembus * ratio[i]; } - rcw_tmp = in_be32(&gur->rcwsr[3]); +#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 + /* + * As per CHASSIS2 architeture total 12 clusters are posible and + * Each cluster has up to 4 cores, sharing the same PLL selection. + * The cluster clock assignment is SoC defined. + * + * Total 4 clock groups are possible with 3 PLLs each. + * as per array indices, clock group A has 0, 1, 2 numbered PLLs & + * clock group B has 3, 4, 6 and so on. + * + * Clock group A having PLL1, PLL2, PLL3, feeding cores of any cluster + * depends upon the SoC architeture. Same applies to other + * clock groups and clusters. + * + */ for_each_cpu(i, cpu, cpu_numcores(), cpu_mask()) { - u32 c_pll_sel = (in_be32(&clk->clkc0csr + cpu*8) >> 27) & 0xf; + int cluster = fsl_qoriq_core_to_cluster(cpu); + u32 c_pll_sel = (in_be32(&clk->clkcsr[cluster].clkcncsr) >> 27) + & 0xf; u32 cplx_pll = core_cplx_PLL[c_pll_sel]; + cplx_pll += cc_group[cluster] - 1; + 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) +#define FM1_CLK_SEL 0xe0000000 +#define FM1_CLK_SHIFT 29 +#else +#define PME_CLK_SEL 0xe0000000 +#define PME_CLK_SHIFT 29 +#define FM1_CLK_SEL 0x1c000000 +#define FM1_CLK_SHIFT 26 +#endif +#if !defined(CONFIG_FM_PLAT_CLK_DIV) || !defined(CONFIG_PME_PLAT_CLK_DIV) + rcw_tmp = in_be32(&gur->rcwsr[7]); +#endif + +#ifdef CONFIG_SYS_DPAA_PME +#ifndef CONFIG_PME_PLAT_CLK_DIV + switch ((rcw_tmp & PME_CLK_SEL) >> PME_CLK_SHIFT) { + case 1: + sys_info->freq_pme = freq_c_pll[CONFIG_SYS_PME_CLK]; + break; + case 2: + sys_info->freq_pme = freq_c_pll[CONFIG_SYS_PME_CLK] / 2; + break; + case 3: + sys_info->freq_pme = freq_c_pll[CONFIG_SYS_PME_CLK] / 3; + break; + case 4: + sys_info->freq_pme = freq_c_pll[CONFIG_SYS_PME_CLK] / 4; + break; + case 6: + sys_info->freq_pme = freq_c_pll[CONFIG_SYS_PME_CLK + 1] / 2; + break; + case 7: + sys_info->freq_pme = freq_c_pll[CONFIG_SYS_PME_CLK + 1] / 3; + break; + default: + printf("Error: Unknown PME clock select!\n"); + case 0: + sys_info->freq_pme = sys_info->freq_systembus / 2; + break; + + } +#else + sys_info->freq_pme = sys_info->freq_systembus / CONFIG_SYS_PME_CLK; + +#endif +#endif + +#ifdef CONFIG_SYS_DPAA_QBMAN + sys_info->freq_qman = sys_info->freq_systembus / 2; +#endif - sysInfo->freqProcessor[cpu] = - freqCC_PLL[cplx_pll] / core_cplx_PLL_div[c_pll_sel]; +#ifdef CONFIG_SYS_DPAA_FMAN +#ifndef CONFIG_FM_PLAT_CLK_DIV + switch ((rcw_tmp & FM1_CLK_SEL) >> FM1_CLK_SHIFT) { + case 1: + sys_info->freq_fman[0] = freq_c_pll[CONFIG_SYS_FM1_CLK]; + break; + case 2: + sys_info->freq_fman[0] = freq_c_pll[CONFIG_SYS_FM1_CLK] / 2; + break; + case 3: + sys_info->freq_fman[0] = freq_c_pll[CONFIG_SYS_FM1_CLK] / 3; + break; + case 4: + sys_info->freq_fman[0] = freq_c_pll[CONFIG_SYS_FM1_CLK] / 4; + break; + case 5: + sys_info->freq_fman[0] = sys_info->freq_systembus; + break; + case 6: + sys_info->freq_fman[0] = freq_c_pll[CONFIG_SYS_FM1_CLK + 1] / 2; + break; + case 7: + sys_info->freq_fman[0] = freq_c_pll[CONFIG_SYS_FM1_CLK + 1] / 3; + break; + default: + printf("Error: Unknown FMan1 clock select!\n"); + case 0: + sys_info->freq_fman[0] = sys_info->freq_systembus / 2; + break; } +#if (CONFIG_SYS_NUM_FMAN) == 2 +#ifdef CONFIG_SYS_FM2_CLK +#define FM2_CLK_SEL 0x00000038 +#define FM2_CLK_SHIFT 3 + rcw_tmp = in_be32(&gur->rcwsr[15]); + switch ((rcw_tmp & FM2_CLK_SEL) >> FM2_CLK_SHIFT) { + case 1: + sys_info->freq_fman[1] = freq_c_pll[CONFIG_SYS_FM2_CLK + 1]; + break; + case 2: + sys_info->freq_fman[1] = freq_c_pll[CONFIG_SYS_FM2_CLK + 1] / 2; + break; + case 3: + sys_info->freq_fman[1] = freq_c_pll[CONFIG_SYS_FM2_CLK + 1] / 3; + break; + 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; + case 7: + sys_info->freq_fman[1] = freq_c_pll[CONFIG_SYS_FM2_CLK] / 3; + break; + default: + printf("Error: Unknown FMan2 clock select!\n"); + case 0: + sys_info->freq_fman[1] = sys_info->freq_systembus / 2; + break; + } +#endif +#endif /* CONFIG_SYS_NUM_FMAN == 2 */ +#else + sys_info->freq_fman[0] = sys_info->freq_systembus / CONFIG_SYS_FM1_CLK; +#endif +#endif + +#else /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */ + for_each_cpu(i, cpu, cpu_numcores(), cpu_mask()) { + u32 c_pll_sel = (in_be32(&clk->clkcsr[cpu].clkcncsr) >> 27) + & 0xf; + u32 cplx_pll = core_cplx_PLL[c_pll_sel]; + + sys_info->freq_processor[cpu] = + freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel]; + } #define PME_CLK_SEL 0x80000000 #define FM1_CLK_SEL 0x40000000 #define FM2_CLK_SEL 0x20000000 #define HWA_ASYNC_DIV 0x04000000 #if (CONFIG_SYS_FSL_NUM_CC_PLLS == 2) #define HWA_CC_PLL 1 +#elif (CONFIG_SYS_FSL_NUM_CC_PLLS == 3) +#define HWA_CC_PLL 2 #elif (CONFIG_SYS_FSL_NUM_CC_PLLS == 4) #define HWA_CC_PLL 2 #else @@ -122,40 +301,43 @@ void get_sys_info (sys_info_t * sysInfo) #ifdef CONFIG_SYS_DPAA_PME if (rcw_tmp & PME_CLK_SEL) { if (rcw_tmp & HWA_ASYNC_DIV) - sysInfo->freqPME = freqCC_PLL[HWA_CC_PLL] / 4; + sys_info->freq_pme = freq_c_pll[HWA_CC_PLL] / 4; else - sysInfo->freqPME = freqCC_PLL[HWA_CC_PLL] / 2; + sys_info->freq_pme = freq_c_pll[HWA_CC_PLL] / 2; } else { - sysInfo->freqPME = sysInfo->freqSystemBus / 2; + sys_info->freq_pme = sys_info->freq_systembus / 2; } #endif #ifdef CONFIG_SYS_DPAA_FMAN if (rcw_tmp & FM1_CLK_SEL) { if (rcw_tmp & HWA_ASYNC_DIV) - sysInfo->freqFMan[0] = freqCC_PLL[HWA_CC_PLL] / 4; + sys_info->freq_fman[0] = freq_c_pll[HWA_CC_PLL] / 4; else - sysInfo->freqFMan[0] = freqCC_PLL[HWA_CC_PLL] / 2; + sys_info->freq_fman[0] = freq_c_pll[HWA_CC_PLL] / 2; } else { - sysInfo->freqFMan[0] = sysInfo->freqSystemBus / 2; + sys_info->freq_fman[0] = sys_info->freq_systembus / 2; } #if (CONFIG_SYS_NUM_FMAN) == 2 if (rcw_tmp & FM2_CLK_SEL) { if (rcw_tmp & HWA_ASYNC_DIV) - sysInfo->freqFMan[1] = freqCC_PLL[HWA_CC_PLL] / 4; + sys_info->freq_fman[1] = freq_c_pll[HWA_CC_PLL] / 4; else - sysInfo->freqFMan[1] = freqCC_PLL[HWA_CC_PLL] / 2; + sys_info->freq_fman[1] = freq_c_pll[HWA_CC_PLL] / 2; } else { - sysInfo->freqFMan[1] = sysInfo->freqSystemBus / 2; + sys_info->freq_fman[1] = sys_info->freq_systembus / 2; } #endif #endif -#else - uint plat_ratio,e500_ratio,half_freqSystemBus; -#if defined(CONFIG_FSL_LBC) - uint lcrr_div; +#ifdef CONFIG_SYS_DPAA_QBMAN + sys_info->freq_qman = sys_info->freq_systembus / 2; #endif + +#endif /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */ + +#else /* CONFIG_FSL_CORENET */ + uint plat_ratio, e500_ratio, half_freq_systembus; int i; #ifdef CONFIG_QE __maybe_unused u32 qe_ratio; @@ -163,46 +345,46 @@ void get_sys_info (sys_info_t * sysInfo) plat_ratio = (gur->porpllsr) & 0x0000003e; plat_ratio >>= 1; - sysInfo->freqSystemBus = plat_ratio * CONFIG_SYS_CLK_FREQ; + sys_info->freq_systembus = plat_ratio * CONFIG_SYS_CLK_FREQ; /* Divide before multiply to avoid integer * overflow for processor speeds above 2GHz */ - half_freqSystemBus = sysInfo->freqSystemBus/2; + half_freq_systembus = sys_info->freq_systembus/2; for (i = 0; i < cpu_numcores(); i++) { e500_ratio = ((gur->porpllsr) >> (i * 8 + 16)) & 0x3f; - sysInfo->freqProcessor[i] = e500_ratio * half_freqSystemBus; + sys_info->freq_processor[i] = e500_ratio * half_freq_systembus; } - /* Note: freqDDRBus is the MCLK frequency, not the data rate. */ - sysInfo->freqDDRBus = sysInfo->freqSystemBus; + /* Note: freq_ddrbus is the MCLK frequency, not the data rate. */ + sys_info->freq_ddrbus = sys_info->freq_systembus; #ifdef CONFIG_DDR_CLK_FREQ { u32 ddr_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO) >> MPC85xx_PORPLLSR_DDR_RATIO_SHIFT; if (ddr_ratio != 0x7) - sysInfo->freqDDRBus = ddr_ratio * CONFIG_DDR_CLK_FREQ; + sys_info->freq_ddrbus = ddr_ratio * CONFIG_DDR_CLK_FREQ; } #endif #ifdef CONFIG_QE -#if defined(CONFIG_P1012) || defined(CONFIG_P1016) || \ - defined(CONFIG_P1021) || defined(CONFIG_P1025) - sysInfo->freqQE = sysInfo->freqSystemBus; +#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025) + sys_info->freq_qe = sys_info->freq_systembus; #else qe_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_QE_RATIO) >> MPC85xx_PORPLLSR_QE_RATIO_SHIFT; - sysInfo->freqQE = qe_ratio * CONFIG_SYS_CLK_FREQ; + sys_info->freq_qe = qe_ratio * CONFIG_SYS_CLK_FREQ; #endif #endif #ifdef CONFIG_SYS_DPAA_FMAN - sysInfo->freqFMan[0] = sysInfo->freqSystemBus; + sys_info->freq_fman[0] = sys_info->freq_systembus; #endif #endif /* CONFIG_FSL_CORENET */ #if defined(CONFIG_FSL_LBC) + uint lcrr_div; #if defined(CONFIG_SYS_LBC_LCRR) /* We will program LCRR to this value later */ lcrr_div = CONFIG_SYS_LBC_LCRR & LCRR_CLKDIV; @@ -223,12 +405,19 @@ void get_sys_info (sys_info_t * sysInfo) */ lcrr_div *= 2; #endif - sysInfo->freqLocalBus = sysInfo->freqSystemBus / lcrr_div; + sys_info->freq_localbus = sys_info->freq_systembus / lcrr_div; } else { /* In case anyone cares what the unknown value is */ - sysInfo->freqLocalBus = lcrr_div; + sys_info->freq_localbus = lcrr_div; } #endif + +#if defined(CONFIG_FSL_IFC) + ccr = in_be32(&ifc_regs->ifc_ccr); + ccr = ((ccr & IFC_CCR_CLK_DIV_MASK) >> IFC_CCR_CLK_DIV_SHIFT) + 1; + + sys_info->freq_localbus = sys_info->freq_systembus / ccr; +#endif } @@ -248,14 +437,14 @@ int get_clocks (void) dfbrg = (sccr & SCCR_DFBRG_MSK) >> SCCR_DFBRG_SHIFT; #endif get_sys_info (&sys_info); - 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; + gd->cpu_clk = sys_info.freq_processor[0]; + gd->bus_clk = sys_info.freq_systembus; + gd->mem_clk = sys_info.freq_ddrbus; + gd->arch.lbc_clk = sys_info.freq_localbus; #ifdef CONFIG_QE - gd->qe_clk = sys_info.freqQE; - gd->brg_clk = gd->qe_clk / 2; + gd->arch.qe_clk = sys_info.freq_qe; + gd->arch.brg_clk = gd->arch.qe_clk / 2; #endif /* * The base clock for I2C depends on the actual SOC. Unfortunately, @@ -265,8 +454,9 @@ int get_clocks (void) * AN2919. */ #if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \ - defined(CONFIG_MPC8560) || defined(CONFIG_MPC8555) - gd->i2c1_clk = sys_info.freqSystemBus; + defined(CONFIG_MPC8560) || defined(CONFIG_MPC8555) || \ + defined(CONFIG_P1022) + gd->arch.i2c1_clk = sys_info.freq_systembus; #elif defined(CONFIG_MPC8544) /* * On the 8544, the I2C clock is the same as the SEC clock. This can be @@ -276,29 +466,29 @@ int get_clocks (void) * PORDEVSR2_SEC_CFG bit is 0 on all 85xx boards that are not an 8544. */ if (gur->pordevsr2 & MPC85xx_PORDEVSR2_SEC_CFG) - gd->i2c1_clk = sys_info.freqSystemBus / 3; + gd->arch.i2c1_clk = sys_info.freq_systembus / 3; else - gd->i2c1_clk = sys_info.freqSystemBus / 2; + gd->arch.i2c1_clk = sys_info.freq_systembus / 2; #else /* Most 85xx SOCs use CCB/2, so this is the default behavior. */ - gd->i2c1_clk = sys_info.freqSystemBus / 2; + gd->arch.i2c1_clk = sys_info.freq_systembus / 2; #endif - gd->i2c2_clk = gd->i2c1_clk; + gd->arch.i2c2_clk = gd->arch.i2c1_clk; #if defined(CONFIG_FSL_ESDHC) #if defined(CONFIG_MPC8569) || defined(CONFIG_P1010) ||\ defined(CONFIG_P1014) - gd->sdhc_clk = gd->bus_clk; + gd->arch.sdhc_clk = gd->bus_clk; #else - gd->sdhc_clk = gd->bus_clk / 2; + gd->arch.sdhc_clk = gd->bus_clk / 2; #endif #endif /* defined(CONFIG_FSL_ESDHC) */ #if defined(CONFIG_CPM2) - gd->vco_out = 2*sys_info.freqSystemBus; - gd->cpm_clk = gd->vco_out / 2; - gd->scc_clk = gd->vco_out / 4; - gd->brg_clk = gd->vco_out / (1 << (2 * (dfbrg + 1))); + gd->arch.vco_out = 2*sys_info.freq_systembus; + gd->arch.cpm_clk = gd->arch.vco_out / 2; + gd->arch.scc_clk = gd->arch.vco_out / 4; + gd->arch.brg_clk = gd->arch.vco_out / (1 << (2 * (dfbrg + 1))); #endif if(gd->cpu_clk != 0) return (0);