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/arch/mips/au1000/db1x00/board_setup.c

https://bitbucket.org/evzijst/gittest
C | 127 lines | 68 code | 15 blank | 44 comment | 2 complexity | 366c287152c8736fe15421d41e0be9f2 MD5 | raw file
  1/*
  2 *
  3 * BRIEF MODULE DESCRIPTION
  4 *	Alchemy Db1x00 board setup.
  5 *
  6 * Copyright 2000 MontaVista Software Inc.
  7 * Author: MontaVista Software, Inc.
  8 *         	ppopov@mvista.com or source@mvista.com
  9 *
 10 *  This program is free software; you can redistribute  it and/or modify it
 11 *  under  the terms of  the GNU General  Public License as published by the
 12 *  Free Software Foundation;  either version 2 of the  License, or (at your
 13 *  option) any later version.
 14 *
 15 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
 16 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
 17 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
 18 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
 19 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 20 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
 21 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 22 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
 23 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 24 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 25 *
 26 *  You should have received a copy of the  GNU General Public License along
 27 *  with this program; if not, write  to the Free Software Foundation, Inc.,
 28 *  675 Mass Ave, Cambridge, MA 02139, USA.
 29 */
 30#include <linux/config.h>
 31#include <linux/init.h>
 32#include <linux/sched.h>
 33#include <linux/ioport.h>
 34#include <linux/mm.h>
 35#include <linux/console.h>
 36#include <linux/mc146818rtc.h>
 37#include <linux/delay.h>
 38
 39#include <asm/cpu.h>
 40#include <asm/bootinfo.h>
 41#include <asm/irq.h>
 42#include <asm/mipsregs.h>
 43#include <asm/reboot.h>
 44#include <asm/pgtable.h>
 45#include <asm/mach-au1x00/au1000.h>
 46#include <asm/mach-db1x00/db1x00.h>
 47
 48/* not correct for db1550 */
 49static BCSR * const bcsr = (BCSR *)0xAE000000;
 50
 51void board_reset (void)
 52{
 53	/* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
 54	au_writel(0x00000000, 0xAE00001C);
 55}
 56
 57void __init board_setup(void)
 58{
 59	u32 pin_func;
 60
 61	pin_func = 0;
 62	/* not valid for 1550 */
 63#ifdef CONFIG_AU1X00_USB_DEVICE
 64	// 2nd USB port is USB device
 65	pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8000);
 66	au_writel(pin_func, SYS_PINFUNC);
 67#endif
 68
 69#if defined(CONFIG_IRDA) && (defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1100))
 70	/* set IRFIRSEL instead of GPIO15 */
 71	pin_func = au_readl(SYS_PINFUNC) | (u32)((1<<8));
 72	au_writel(pin_func, SYS_PINFUNC);
 73	/* power off until the driver is in use */
 74	bcsr->resets &= ~BCSR_RESETS_IRDA_MODE_MASK;
 75	bcsr->resets |= BCSR_RESETS_IRDA_MODE_OFF;
 76	au_sync();
 77#endif
 78	au_writel(0, 0xAE000010); /* turn off pcmcia power */
 79
 80#ifdef CONFIG_MIPS_MIRAGE
 81	/* enable GPIO[31:0] inputs */
 82	au_writel(0, SYS_PININPUTEN);
 83
 84	/* GPIO[20] is output, tristate the other input primary GPIO's */
 85	au_writel((u32)(~(1<<20)), SYS_TRIOUTCLR);
 86
 87	/* set GPIO[210:208] instead of SSI_0 */
 88	pin_func = au_readl(SYS_PINFUNC) | (u32)(1);
 89
 90	/* set GPIO[215:211] for LED's */
 91	pin_func |= (u32)((5<<2));
 92
 93	/* set GPIO[214:213] for more LED's */
 94	pin_func |= (u32)((5<<12));
 95
 96	/* set GPIO[207:200] instead of PCMCIA/LCD */
 97	pin_func |= (u32)((3<<17));
 98	au_writel(pin_func, SYS_PINFUNC);
 99
100	/* Enable speaker amplifier.  This should
101	 * be part of the audio driver.
102	 */
103	au_writel(au_readl(GPIO2_DIR) | 0x200, GPIO2_DIR);
104	au_writel(0x02000200, GPIO2_OUTPUT);
105#endif
106
107	au_sync();
108
109#ifdef CONFIG_MIPS_DB1000
110    printk("AMD Alchemy Au1000/Db1000 Board\n");
111#endif
112#ifdef CONFIG_MIPS_DB1500
113    printk("AMD Alchemy Au1500/Db1500 Board\n");
114#endif
115#ifdef CONFIG_MIPS_DB1100
116    printk("AMD Alchemy Au1100/Db1100 Board\n");
117#endif
118#ifdef CONFIG_MIPS_BOSPORUS
119    printk("AMD Alchemy Bosporus Board\n");
120#endif
121#ifdef CONFIG_MIPS_MIRAGE
122    printk("AMD Alchemy Mirage Board\n");
123#endif
124#ifdef CONFIG_MIPS_DB1550
125    printk("AMD Alchemy Au1550/Db1550 Board\n");
126#endif
127}