u-boot/arch/arm/cpu/armv7/omap4/mem.c
Steve Sakoman 27952014c4 ARMV7: Add basic gpmc initialization for OMAP4
This patch adds a gpmc_init function for OMAP4 and adds calls to
gpmc_init for existing OMAP4 boards: panda and sdp4430

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-07-15 16:19:16 -04:00

45 lines
1.4 KiB
C

/*
* (C) Copyright 2010
* Texas Instruments, <www.ti.com>
*
* Steve Sakoman <steve@sakoman.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <asm/arch/cpu.h>
#include <asm/arch/sys_proto.h>
struct gpmc *gpmc_cfg;
/*****************************************************
* gpmc_init(): init gpmc bus
* This code can only be executed from SRAM or SDRAM.
*****************************************************/
void gpmc_init(void)
{
gpmc_cfg = (struct gpmc *)GPMC_BASE;
/* global settings */
writel(0, &gpmc_cfg->irqenable); /* isr's sources masked */
writel(0, &gpmc_cfg->timeout_control);/* timeout disable */
/*
* Disable the GPMC0 config set by ROM code
* It conflicts with our MPDB (both at 0x08000000)
*/
writel(0, &gpmc_cfg->cs[0].config7);
}