1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * 4 * (C) Copyright 2000-2003 5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 6 * 7 * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc. 8 * TsiChung Liew (Tsi-Chung.Liew@freescale.com) 9 */ 10 11 #include <common.h> 12 #include <asm/processor.h> 13 14 #include <asm/immap.h> 15 #include <asm/io.h> 16 17 DECLARE_GLOBAL_DATA_PTR; 18 /* 19 * get_clocks() fills in gd->cpu_clock and gd->bus_clk 20 */ 21 int get_clocks(void) 22 { 23 pll_t *pll = (pll_t *)(MMAP_PLL); 24 25 out_be32(&pll->syncr, PLL_SYNCR_MFD(1)); 26 27 while (!(in_be32(&pll->synsr) & PLL_SYNSR_LOCK)) 28 ; 29 30 gd->bus_clk = CONFIG_SYS_CLK; 31 gd->cpu_clk = (gd->bus_clk * 2); 32 33 #ifdef CONFIG_SYS_I2C_FSL 34 gd->arch.i2c1_clk = gd->bus_clk; 35 #endif 36 37 return (0); 38 } 39