diff options
Diffstat (limited to 'arch/mips/au1000/db1x00/board_setup.c')
| -rw-r--r-- | arch/mips/au1000/db1x00/board_setup.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/arch/mips/au1000/db1x00/board_setup.c b/arch/mips/au1000/db1x00/board_setup.c new file mode 100644 index 00000000000..ac05ba0ff63 --- /dev/null +++ b/arch/mips/au1000/db1x00/board_setup.c @@ -0,0 +1,127 @@ +/* + * + * BRIEF MODULE DESCRIPTION + * Alchemy Db1x00 board setup. + * + * Copyright 2000 MontaVista Software Inc. + * Author: MontaVista Software, Inc. + * ppopov@mvista.com or source@mvista.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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * 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., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include <linux/config.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/ioport.h> +#include <linux/mm.h> +#include <linux/console.h> +#include <linux/mc146818rtc.h> +#include <linux/delay.h> + +#include <asm/cpu.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/mipsregs.h> +#include <asm/reboot.h> +#include <asm/pgtable.h> +#include <asm/mach-au1x00/au1000.h> +#include <asm/mach-db1x00/db1x00.h> + +/* not correct for db1550 */ +static BCSR * const bcsr = (BCSR *)0xAE000000; + +void board_reset (void) +{ + /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */ + au_writel(0x00000000, 0xAE00001C); +} + +void __init board_setup(void) +{ + u32 pin_func; + + pin_func = 0; + /* not valid for 1550 */ +#ifdef CONFIG_AU1X00_USB_DEVICE + // 2nd USB port is USB device + pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8000); + au_writel(pin_func, SYS_PINFUNC); +#endif + +#if defined(CONFIG_IRDA) && (defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1100)) + /* set IRFIRSEL instead of GPIO15 */ + pin_func = au_readl(SYS_PINFUNC) | (u32)((1<<8)); + au_writel(pin_func, SYS_PINFUNC); + /* power off until the driver is in use */ + bcsr->resets &= ~BCSR_RESETS_IRDA_MODE_MASK; + bcsr->resets |= BCSR_RESETS_IRDA_MODE_OFF; + au_sync(); +#endif + au_writel(0, 0xAE000010); /* turn off pcmcia power */ + +#ifdef CONFIG_MIPS_MIRAGE + /* enable GPIO[31:0] inputs */ + au_writel(0, SYS_PININPUTEN); + + /* GPIO[20] is output, tristate the other input primary GPIO's */ + au_writel((u32)(~(1<<20)), SYS_TRIOUTCLR); + + /* set GPIO[210:208] instead of SSI_0 */ + pin_func = au_readl(SYS_PINFUNC) | (u32)(1); + + /* set GPIO[215:211] for LED's */ + pin_func |= (u32)((5<<2)); + + /* set GPIO[214:213] for more LED's */ + pin_func |= (u32)((5<<12)); + + /* set GPIO[207:200] instead of PCMCIA/LCD */ + pin_func |= (u32)((3<<17)); + au_writel(pin_func, SYS_PINFUNC); + + /* Enable speaker amplifier. This should + * be part of the audio driver. + */ + au_writel(au_readl(GPIO2_DIR) | 0x200, GPIO2_DIR); + au_writel(0x02000200, GPIO2_OUTPUT); +#endif + + au_sync(); + +#ifdef CONFIG_MIPS_DB1000 + printk("AMD Alchemy Au1000/Db1000 Board\n"); +#endif +#ifdef CONFIG_MIPS_DB1500 + printk("AMD Alchemy Au1500/Db1500 Board\n"); +#endif +#ifdef CONFIG_MIPS_DB1100 + printk("AMD Alchemy Au1100/Db1100 Board\n"); +#endif +#ifdef CONFIG_MIPS_BOSPORUS + printk("AMD Alchemy Bosporus Board\n"); +#endif +#ifdef CONFIG_MIPS_MIRAGE + printk("AMD Alchemy Mirage Board\n"); +#endif +#ifdef CONFIG_MIPS_DB1550 + printk("AMD Alchemy Au1550/Db1550 Board\n"); +#endif +} |