arch/arm/mach-omap2/omap3/emac.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  *
   4  * DaVinci EMAC initialization.
   5  *
   6  * (C) Copyright 2011, Ilya Yanok, Emcraft Systems
   7  */
   8
   9 #include <common.h>
  10 #include <net.h>
  11 #include <asm/io.h>
  12 #include <asm/arch/am35x_def.h>
  13
  14 /*
  15  * Initializes on-chip ethernet controllers.
  16  * to override, implement board_eth_init()
  17  */
  18 int cpu_eth_init(bd_t *bis)
  19 {
  20         u32 reset;
  21
  22         /* ensure that the module is out of reset */
  23         reset = readl(&am35x_scm_general_regs->ip_sw_reset);
  24         reset &= ~CPGMACSS_SW_RST;
  25         writel(reset, &am35x_scm_general_regs->ip_sw_reset);
  26
  27         return 0;
  28 }