target/linux/brcm63xx/files/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
  17 void __init prom_init(void)
  18 {
  19         u32 reg, mask;
  20
  21         bcm63xx_cpu_init();
  22
  23         /* stop any running watchdog */
  24         bcm_wdt_writel(WDT_STOP_1, WDT_CTL_REG);
  25         bcm_wdt_writel(WDT_STOP_2, WDT_CTL_REG);
  26
  27         /* disable all hardware blocks clock for now */
  28         if (BCMCPU_IS_6338())
  29                 mask = CKCTL_6338_ALL_SAFE_EN;
  30         else if (BCMCPU_IS_6345())
  31                 mask = CKCTL_6345_UART_EN;
  32         else if (BCMCPU_IS_6348())
  33                 mask = CKCTL_6348_ALL_SAFE_EN;
  34         else
  35                 /* BCMCPU_IS_6358() */
  36                 mask = CKCTL_6358_ALL_SAFE_EN;
  37
  38         reg = bcm_perf_readl(PERF_CKCTL_REG);
  39         reg &= ~mask;
  40         bcm_perf_writel(reg, PERF_CKCTL_REG);
  41
  42         /* assign command line from kernel config */
  43         strcpy(arcs_cmdline, CONFIG_CMDLINE);
  44
  45         /* do low level board init */
  46         board_prom_init();
  47 }
  48
  49 void __init prom_free_prom_memory(void)
  50 {
  51 }