mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2025-01-14 20:11:06 +02:00
ec6d32f924
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9263 3c298f89-4303-0410-b956-a3cf2f4a3e73
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/*
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2007 OpenWrt.org
|
|
* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*
|
|
*/
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/addrspace.h>
|
|
|
|
#include <adm5120_info.h>
|
|
#include <adm5120_defs.h>
|
|
#include <adm5120_switch.h>
|
|
|
|
unsigned int adm5120_product_code;
|
|
unsigned int adm5120_revision;
|
|
unsigned int adm5120_package;
|
|
unsigned int adm5120_nand_boot;
|
|
unsigned long adm5120_speed;
|
|
|
|
/*
|
|
* CPU settings detection
|
|
*/
|
|
#define CODE_GET_PC(c) ((c) & CODE_PC_MASK)
|
|
#define CODE_GET_REV(c) (((c) >> CODE_REV_SHIFT) & CODE_REV_MASK)
|
|
#define CODE_GET_PK(c) (((c) >> CODE_PK_SHIFT) & CODE_PK_MASK)
|
|
#define CODE_GET_CLKS(c) (((c) >> CODE_CLKS_SHIFT) & CODE_CLKS_MASK)
|
|
#define CODE_GET_NAB(c) (((c) & CODE_NAB) != 0)
|
|
|
|
void adm5120_ndelay(u32 ns)
|
|
{
|
|
u32 t;
|
|
|
|
SW_WRITE_REG(TIMER, TIMER_PERIOD_DEFAULT);
|
|
SW_WRITE_REG(TIMER_INT, (TIMER_INT_TOS | TIMER_INT_TOM));
|
|
|
|
t = (ns+640) / 640;
|
|
t &= TIMER_PERIOD_MASK;
|
|
SW_WRITE_REG(TIMER, t | TIMER_TE);
|
|
|
|
/* wait until the timer expires */
|
|
do {
|
|
t = SW_READ_REG(TIMER_INT);
|
|
} while ((t & TIMER_INT_TOS) == 0);
|
|
|
|
/* leave the timer disabled */
|
|
SW_WRITE_REG(TIMER, TIMER_PERIOD_DEFAULT);
|
|
SW_WRITE_REG(TIMER_INT, (TIMER_INT_TOS | TIMER_INT_TOM));
|
|
}
|
|
|
|
void __init adm5120_soc_init(void)
|
|
{
|
|
u32 code;
|
|
u32 clks;
|
|
|
|
code = SW_READ_REG(CODE);
|
|
|
|
adm5120_product_code = CODE_GET_PC(code);
|
|
adm5120_revision = CODE_GET_REV(code);
|
|
adm5120_package = (CODE_GET_PK(code) == CODE_PK_BGA) ?
|
|
ADM5120_PACKAGE_BGA : ADM5120_PACKAGE_PQFP;
|
|
adm5120_nand_boot = CODE_GET_NAB(code);
|
|
|
|
clks = CODE_GET_CLKS(code);
|
|
adm5120_speed = ADM5120_SPEED_175;
|
|
if (clks & 1)
|
|
adm5120_speed += 25000000;
|
|
if (clks & 2)
|
|
adm5120_speed += 50000000;
|
|
}
|