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126 lines
3.8 KiB
126 lines
3.8 KiB
/*
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*
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* BRIEF MODULE DESCRIPTION
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* Alchemy Db1x00 board setup.
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*
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* Copyright 2000 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/config.h>
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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/mc146818rtc.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/mipsregs.h>
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#include <asm/reboot.h>
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#include <asm/pgtable.h>
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#include <asm/mach-au1x00/au1000.h>
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#include <asm/mach-db1x00/db1x00.h>
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static BCSR * const bcsr = (BCSR *)BCSR_KSEG1_ADDR;
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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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bcsr->swreset = 0x0000;
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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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pin_func = 0;
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/* not valid for 1550 */
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#ifdef CONFIG_AU1X00_USB_DEVICE
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// 2nd USB port is USB device
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pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8000);
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au_writel(pin_func, SYS_PINFUNC);
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#endif
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#if defined(CONFIG_IRDA) && (defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1100))
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/* set IRFIRSEL instead of GPIO15 */
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pin_func = au_readl(SYS_PINFUNC) | (u32)((1<<8));
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au_writel(pin_func, SYS_PINFUNC);
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/* power off until the driver is in use */
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bcsr->resets &= ~BCSR_RESETS_IRDA_MODE_MASK;
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bcsr->resets |= BCSR_RESETS_IRDA_MODE_OFF;
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au_sync();
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#endif
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bcsr->pcmcia = 0x0000; /* turn off PCMCIA power */
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#ifdef CONFIG_MIPS_MIRAGE
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/* enable GPIO[31:0] inputs */
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au_writel(0, SYS_PININPUTEN);
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/* GPIO[20] is output, tristate the other input primary GPIO's */
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au_writel((u32)(~(1<<20)), SYS_TRIOUTCLR);
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/* set GPIO[210:208] instead of SSI_0 */
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pin_func = au_readl(SYS_PINFUNC) | (u32)(1);
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/* set GPIO[215:211] for LED's */
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pin_func |= (u32)((5<<2));
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/* set GPIO[214:213] for more LED's */
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pin_func |= (u32)((5<<12));
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/* set GPIO[207:200] instead of PCMCIA/LCD */
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pin_func |= (u32)((3<<17));
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au_writel(pin_func, SYS_PINFUNC);
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/* Enable speaker amplifier. This should
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* be part of the audio driver.
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*/
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au_writel(au_readl(GPIO2_DIR) | 0x200, GPIO2_DIR);
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au_writel(0x02000200, GPIO2_OUTPUT);
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#endif
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au_sync();
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#ifdef CONFIG_MIPS_DB1000
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printk("AMD Alchemy Au1000/Db1000 Board\n");
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#endif
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#ifdef CONFIG_MIPS_DB1500
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printk("AMD Alchemy Au1500/Db1500 Board\n");
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#endif
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#ifdef CONFIG_MIPS_DB1100
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printk("AMD Alchemy Au1100/Db1100 Board\n");
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#endif
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#ifdef CONFIG_MIPS_BOSPORUS
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printk("AMD Alchemy Bosporus Board\n");
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#endif
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#ifdef CONFIG_MIPS_MIRAGE
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printk("AMD Alchemy Mirage Board\n");
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#endif
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#ifdef CONFIG_MIPS_DB1550
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printk("AMD Alchemy Au1550/Db1550 Board\n");
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#endif
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}
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