LXR linux/arch/m68k/coldfire/m5407.c

   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
  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 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
  56void __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