1 /***************************************************************************/ 2 3 /* 4 * m5206.c -- platform support for ColdFire 5206 based boards 5 * 6 * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) 7 * Copyright (C) 2000-2001, Lineo Inc. (www.lineo.com) 8 */ 9 10 /***************************************************************************/ 11 12 #include <linux/kernel.h> 13 #include <linux/param.h> 14 #include <linux/init.h> 15 #include <linux/io.h> 16 #include <asm/machdep.h> 17 #include <asm/coldfire.h> 18 #include <asm/mcfsim.h> 19 #include <asm/mcfclk.h> 20 21 /***************************************************************************/ 22 23 DEFINE_CLK(pll, "pll.0", MCF_CLK); 24 DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); 25 DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK); 26 DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK); 27 DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); 28 DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); 29 DEFINE_CLK(mcfi2c0, "imx1-i2c.0", MCF_BUSCLK); 30 31 struct clk *mcf_clks[] = { 32 &clk_pll, 33 &clk_sys, 34 &clk_mcftmr0, 35 &clk_mcftmr1, 36 &clk_mcfuart0, 37 &clk_mcfuart1, 38 &clk_mcfi2c0, 39 NULL 40 }; 41 42 /***************************************************************************/ 43 44 static void __init m5206_i2c_init(void) 45 { 46 #if IS_ENABLED(CONFIG_I2C_IMX) 47 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0, 48 MCFSIM_I2CICR); 49 mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C); 50 #endif /* IS_ENABLED(CONFIG_I2C_IMX) */ 51 } 52 53 void __init config_BSP(char *commandp, int size) 54 { 55 #if defined(CONFIG_NETtel) 56 /* Copy command line from FLASH to local buffer... */ 57 memcpy(commandp, (char *) 0xf0004000, size); 58 commandp[size-1] = 0; 59 #endif /* CONFIG_NETtel */ 60 61 mach_sched_init = hw_timer_init; 62 63 /* Only support the external interrupts on their primary level */ 64 mcf_mapirq2imr(25, MCFINTC_EINT1); 65 mcf_mapirq2imr(28, MCFINTC_EINT4); 66 mcf_mapirq2imr(31, MCFINTC_EINT7); 67 m5206_i2c_init(); 68 } 69 70 /***************************************************************************/ 71