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/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 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
  40static 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
  49void __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