1 // SPDX-License-Identifier: GPL-2.0 2 /***************************************************************************/ 3 4 /* 5 * m5307.c -- platform support for ColdFire 5307 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/mcfwdebug.h> 21 #include <asm/mcfclk.h> 22 23 /***************************************************************************/ 24 25 /* 26 * Some platforms need software versions of the GPIO data registers. 27 */ 28 unsigned short ppdata; 29 unsigned char ledbank = 0xff; 30 31 /***************************************************************************/ 32 33 DEFINE_CLK(pll, "pll.0", MCF_CLK); 34 DEFINE_CLK(sys, "sys.0", MCF_BUSCLK); 35 DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK); 36 DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK); 37 DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK); 38 DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK); 39 DEFINE_CLK(mcfi2c0, "imx1-i2c.0", MCF_BUSCLK); 40 41 struct clk *mcf_clks[] = { 42 &clk_pll, 43 &clk_sys, 44 &clk_mcftmr0, 45 &clk_mcftmr1, 46 &clk_mcfuart0, 47 &clk_mcfuart1, 48 &clk_mcfi2c0, 49 NULL 50 }; 51 52 /***************************************************************************/ 53 54 static void __init m5307_i2c_init(void) 55 { 56 #if IS_ENABLED(CONFIG_I2C_IMX) 57 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0, 58 MCFSIM_I2CICR); 59 mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C); 60 #endif /* IS_ENABLED(CONFIG_I2C_IMX) */ 61 } 62 63 /***************************************************************************/ 64 65 void __init config_BSP(char *commandp, int size) 66 { 67 #if defined(CONFIG_NETtel) || \ 68 defined(CONFIG_SECUREEDGEMP3) || defined(CONFIG_CLEOPATRA) 69 /* Copy command line from FLASH to local buffer... */ 70 memcpy(commandp, (char *) 0xf0004000, size); 71 commandp[size-1] = 0; 72 #endif 73 74 mach_sched_init = hw_timer_init; 75 76 /* Only support the external interrupts on their primary level */ 77 mcf_mapirq2imr(25, MCFINTC_EINT1); 78 mcf_mapirq2imr(27, MCFINTC_EINT3); 79 mcf_mapirq2imr(29, MCFINTC_EINT5); 80 mcf_mapirq2imr(31, MCFINTC_EINT7); 81 82 #ifdef CONFIG_BDM_DISABLE 83 /* 84 * Disable the BDM clocking. This also turns off most of the rest of 85 * the BDM device. This is good for EMC reasons. This option is not 86 * incompatible with the memory protection option. 87 */ 88 wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK); 89 #endif 90 m5307_i2c_init(); 91 } 92 93 /***************************************************************************/ 94