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/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
  25DEFINE_CLK(pll, "pll.0", MCF_CLK);
  26DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
  27
  28static struct clk_lookup m5407_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
  40static void __init m5407_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/***************************************************************************/
  50
  51void __init config_BSP(char *commandp, int size)
  52{
  53        mach_sched_init = hw_timer_init;
  54
  55        /* Only support the external interrupts on their primary level */
  56        mcf_mapirq2imr(25, MCFINTC_EINT1);
  57        mcf_mapirq2imr(27, MCFINTC_EINT3);
  58        mcf_mapirq2imr(29, MCFINTC_EINT5);
  59        mcf_mapirq2imr(31, MCFINTC_EINT7);
  60        m5407_i2c_init();
  61
  62        clkdev_add_table(m5407_clk_lookup, ARRAY_SIZE(m5407_clk_lookup));
  63}
  64
  65/***************************************************************************/
  66