LXR linux/arch/m68k/coldfire/m5206.c

   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/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
  24DEFINE_CLK(pll, "pll.0", MCF_CLK);
  25DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
  26DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK);
  27DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK);
  28DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK);
  29DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK);
  30DEFINE_CLK(mcfi2c0, "imx1-i2c.0", MCF_BUSCLK);
  31
  32struct 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
  45static void __init m5206_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
  54void __init config_BSP(char *commandp, int size)
  55{
  56#if defined(CONFIG_NETtel)
  57        /* Copy command line from FLASH to local buffer... */
  58        memcpy(commandp, (char *) 0xf0004000, size);
  59        commandp[size-1] = 0;
  60#endif /* CONFIG_NETtel */
  61
  62        mach_sched_init = hw_timer_init;
  63
  64        /* Only support the external interrupts on their primary level */
  65        mcf_mapirq2imr(25, MCFINTC_EINT1);
  66        mcf_mapirq2imr(28, MCFINTC_EINT4);
  67        mcf_mapirq2imr(31, MCFINTC_EINT7);
  68        m5206_i2c_init();
  69}
  70
  71/***************************************************************************/
  72