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xianfeng |
/*
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* Copyright 2000-2003 MontaVista Software Inc.
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* Author: MontaVista Software, Inc.
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* ppopov@mvista.com or source@mvista.com
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/sched.h>
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#include <linux/ioport.h>
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#include <linux/mm.h>
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#include <linux/console.h>
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#include <linux/delay.h>
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#include <asm/cpu.h>
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#include <asm/bootinfo.h>
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#include <asm/irq.h>
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#include <asm/keyboard.h>
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#include <asm/mipsregs.h>
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#include <asm/reboot.h>
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#include <asm/pgtable.h>
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#include <asm/au1000.h>
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void board_reset(void)
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{
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/* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
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au_writel(0x00000000, 0xAE00001C);
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}
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void __init board_setup(void)
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{
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u32 pin_func;
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// set multiple use pins (UART3/GPIO) to UART (it's used as UART too)
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pin_func = au_readl(SYS_PINFUNC) & (u32)(~SYS_PF_UR3);
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pin_func |= SYS_PF_UR3;
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au_writel(pin_func, SYS_PINFUNC);
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// enable UART
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au_writel(0x01, UART3_ADDR+UART_MOD_CNTRL); // clock enable (CE)
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mdelay(10);
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au_writel(0x03, UART3_ADDR+UART_MOD_CNTRL); // CE and "enable"
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mdelay(10);
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// enable DTR = USB power up
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au_writel(0x01, UART3_ADDR+UART_MCR); //? UART_MCR_DTR is 0x01???
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#ifdef CONFIG_PCMCIA_XXS1500
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/* setup pcmcia signals */
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au_writel(0, SYS_PININPUTEN);
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/* gpio 0, 1, and 4 are inputs */
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au_writel(1 | (1<<1) | (1<<4), SYS_TRIOUTCLR);
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/* enable GPIO2 if not already enabled */
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au_writel(1, GPIO2_ENABLE);
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/* gpio2 208/9/10/11 are inputs */
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au_writel((1<<8) | (1<<9) | (1<<10) | (1<<11), GPIO2_DIR);
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/* turn off power */
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au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))|(1<<30), GPIO2_OUTPUT);
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#endif
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#ifdef CONFIG_PCI
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#if defined(__MIPSEB__)
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au_writel(0xf | (2<<6) | (1<<4), Au1500_PCI_CFG);
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#else
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au_writel(0xf, Au1500_PCI_CFG);
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#endif
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#endif
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}
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