1 // SPDX-License-Identifier: GPL-2.0 2 /***************************************************************************/ 3 4 /* 5 * m5206.c -- platform support for ColdFire 5206 based boards 6 * 7 * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) 8 * Copyright (C) 2000-2001, Lineo Inc. (www.lineo.com) 9 */ 10 11 /***************************************************************************/ 12 13 #include <linux/clkdev.h> 14 #include <linux/kernel.h> 15 #include <linux/param.h> 16 #include <linux/init.h> 17 #include <linux/io.h> 18 #include <asm/machdep.h> 19 #include <asm/coldfire.h> 20 #include <asm/mcfsim.h> 21 #include <asm/mcfclk.h> 22 23 /***************************************************************************/ 24 25 DEFINE_CLK(pll, "pll.0", MCF_CLK); 26 DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); 27 28 static struct clk_lookup m5206_clk_lookup[] = { 29 CLKDEV_INIT(NULL, "pll.0", &clk_pll), 30 CLKDEV_INIT(NULL, "sys.0", &clk_sys), 31 CLKDEV_INIT("mcftmr.0", NULL, &clk_sys), 32 CLKDEV_INIT("mcftmr.1", NULL, &clk_sys), 33 CLKDEV_INIT("mcfuart.0", NULL, &clk_sys), 34 CLKDEV_INIT("mcfuart.1", NULL, &clk_sys), 35 CLKDEV_INIT("imx1-i2c.0", NULL, &clk_sys), 36 }; 37 38 /***************************************************************************/ 39 40 static void __init m5206_i2c_init(void) 41 { 42 #if IS_ENABLED(CONFIG_I2C_IMX) 43 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0, 44 MCFSIM_I2CICR); 45 mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C); 46 #endif /* IS_ENABLED(CONFIG_I2C_IMX) */ 47 } 48 49 void __init config_BSP(char *commandp, int size) 50 { 51 #if defined(CONFIG_NETtel) 52 /* Copy command line from FLASH to local buffer... */ 53 memcpy(commandp, (char *) 0xf0004000, size); 54 commandp[size-1] = 0; 55 #endif /* CONFIG_NETtel */ 56 57 mach_sched_init = hw_timer_init; 58 59 /* Only support the external interrupts on their primary level */ 60 mcf_mapirq2imr(25, MCFINTC_EINT1); 61 mcf_mapirq2imr(28, MCFINTC_EINT4); 62 mcf_mapirq2imr(31, MCFINTC_EINT7); 63 m5206_i2c_init(); 64 65 clkdev_add_table(m5206_clk_lookup, ARRAY_SIZE(m5206_clk_lookup)); 66 } 67 68 /***************************************************************************/ 69