1 // SPDX-License-Identifier: GPL-2.0 2 /***************************************************************************/ 3 4 /* 5 * m5407.c -- platform support for ColdFire 5407 based boards 6 * 7 * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) 8 * Copyright (C) 2000, Lineo (www.lineo.com) 9 */ 10 11 /***************************************************************************/ 12 13 #include <linux/kernel.h> 14 #include <linux/param.h> 15 #include <linux/init.h> 16 #include <linux/io.h> 17 #include <asm/machdep.h> 18 #include <asm/coldfire.h> 19 #include <asm/mcfsim.h> 20 #include <asm/mcfclk.h> 21 22 /***************************************************************************/ 23 24 DEFINE_CLK(pll, "pll.0", MCF_CLK); 25 DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); 26 DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK); 27 DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK); 28 DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); 29 DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); 30 DEFINE_CLK(mcfi2c0, "imx1-i2c.0", MCF_BUSCLK); 31 32 struct clk *mcf_clks[] = { 33 &clk_pll, 34 &clk_sys, 35 &clk_mcftmr0, 36 &clk_mcftmr1, 37 &clk_mcfuart0, 38 &clk_mcfuart1, 39 &clk_mcfi2c0, 40 NULL 41 }; 42 43 /***************************************************************************/ 44 45 static void __init m5407_i2c_init(void) 46 { 47 #if IS_ENABLED(CONFIG_I2C_IMX) 48 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0, 49 MCFSIM_I2CICR); 50 mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C); 51 #endif /* IS_ENABLED(CONFIG_I2C_IMX) */ 52 } 53 54 /***************************************************************************/ 55 56 void __init config_BSP(char *commandp, int size) 57 { 58 mach_sched_init = hw_timer_init; 59 60 /* Only support the external interrupts on their primary level */ 61 mcf_mapirq2imr(25, MCFINTC_EINT1); 62 mcf_mapirq2imr(27, MCFINTC_EINT3); 63 mcf_mapirq2imr(29, MCFINTC_EINT5); 64 mcf_mapirq2imr(31, MCFINTC_EINT7); 65 m5407_i2c_init(); 66 } 67 68 /***************************************************************************/ 69