LXR linux/arch/mips/bcm63xx/prom.c

   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
   7 */
   8
   9#include <linux/init.h>
  10#include <linux/bootmem.h>
  11#include <asm/bootinfo.h>
  12#include <bcm63xx_board.h>
  13#include <bcm63xx_cpu.h>
  14#include <bcm63xx_io.h>
  15#include <bcm63xx_regs.h>
  16#include <bcm63xx_gpio.h>
  17
  18void __init prom_init(void)
  19{
  20        u32 reg, mask;
  21
  22        bcm63xx_cpu_init();
  23
  24        /* stop any running watchdog */
  25        bcm_wdt_writel(WDT_STOP_1, WDT_CTL_REG);
  26        bcm_wdt_writel(WDT_STOP_2, WDT_CTL_REG);
  27
  28        /* disable all hardware blocks clock for now */
  29        if (BCMCPU_IS_6338())
  30                mask = CKCTL_6338_ALL_SAFE_EN;
  31        else if (BCMCPU_IS_6345())
  32                mask = CKCTL_6345_ALL_SAFE_EN;
  33        else if (BCMCPU_IS_6348())
  34                mask = CKCTL_6348_ALL_SAFE_EN;
  35        else
  36                /* BCMCPU_IS_6358() */
  37                mask = CKCTL_6358_ALL_SAFE_EN;
  38
  39        reg = bcm_perf_readl(PERF_CKCTL_REG);
  40        reg &= ~mask;
  41        bcm_perf_writel(reg, PERF_CKCTL_REG);
  42
  43        /* assign command line from kernel config */
  44        strcpy(arcs_cmdline, CONFIG_CMDLINE);
  45
  46        /* register gpiochip */
  47        bcm63xx_gpio_init();
  48
  49        /* do low level board init */
  50        board_prom_init();
  51}
  52
  53void __init prom_free_prom_memory(void)
  54{
  55}
  56