xref: /OK3568_Linux_fs/u-boot/arch/arm/mach-omap2/omap3/emac.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  *
3*4882a593Smuzhiyun  * DaVinci EMAC initialization.
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  * (C) Copyright 2011, Ilya Yanok, Emcraft Systems
6*4882a593Smuzhiyun  *
7*4882a593Smuzhiyun  * SPDX-License-Identifier:	GPL-2.0+
8*4882a593Smuzhiyun  */
9*4882a593Smuzhiyun 
10*4882a593Smuzhiyun #include <common.h>
11*4882a593Smuzhiyun #include <netdev.h>
12*4882a593Smuzhiyun #include <asm/io.h>
13*4882a593Smuzhiyun #include <asm/arch/am35x_def.h>
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun /*
16*4882a593Smuzhiyun  * Initializes on-chip ethernet controllers.
17*4882a593Smuzhiyun  * to override, implement board_eth_init()
18*4882a593Smuzhiyun  */
cpu_eth_init(bd_t * bis)19*4882a593Smuzhiyun int cpu_eth_init(bd_t *bis)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun 	u32 reset;
22*4882a593Smuzhiyun 
23*4882a593Smuzhiyun 	/* ensure that the module is out of reset */
24*4882a593Smuzhiyun 	reset = readl(&am35x_scm_general_regs->ip_sw_reset);
25*4882a593Smuzhiyun 	reset &= ~CPGMACSS_SW_RST;
26*4882a593Smuzhiyun 	writel(reset, &am35x_scm_general_regs->ip_sw_reset);
27*4882a593Smuzhiyun 
28*4882a593Smuzhiyun 	return davinci_emac_initialize();
29*4882a593Smuzhiyun }
30