drivers/misc/fsl_devdis.c

   1 /*
   2  * Copyright 2015 Freescale Semiconductor, Inc.
   3  * Author: Zhuoyu Zhang <Zhuoyu.Zhang@freescale.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7 #include <common.h>
   8 #include <asm/io.h>
   9 #include <asm/arch-ls102xa/immap_ls102xa.h>
  10 #include <asm/arch-ls102xa/config.h>
  11 #include <linux/compiler.h>
  12 #include <hwconfig.h>
  13 #include <fsl_devdis.h>
  14
  15 void device_disable(const struct devdis_table *tbl, uint32_t num)
  16 {
  17         int i;
  18         struct ccsr_gur __iomem *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
  19
  20         /*
  21          * Extract hwconfig from environment and disable unused device.
  22          */
  23         for (i = 0; i < num; i++) {
  24                 if (hwconfig_sub("devdis", tbl[i].name))
  25                         setbits_be32(&gur->devdisr + tbl[i].offset,
  26                                 tbl[i].mask);
  27         }
  28 }
  29