diff options
Diffstat (limited to 'arch/mips/au1000/xxs1500/board_setup.c')
| -rw-r--r-- | arch/mips/au1000/xxs1500/board_setup.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/arch/mips/au1000/xxs1500/board_setup.c b/arch/mips/au1000/xxs1500/board_setup.c new file mode 100644 index 00000000000..9dadc82536f --- /dev/null +++ b/arch/mips/au1000/xxs1500/board_setup.c @@ -0,0 +1,91 @@ +/* + * Copyright 2000-2003 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/delay.h> + +#include <asm/cpu.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/keyboard.h> +#include <asm/mipsregs.h> +#include <asm/reboot.h> +#include <asm/pgtable.h> +#include <asm/au1000.h> + +void board_reset (void) +{ + /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */ + au_writel(0x00000000, 0xAE00001C); +} + +void __init board_setup(void) +{ + u32 pin_func; + + // set multiple use pins (UART3/GPIO) to UART (it's used as UART too) + pin_func = au_readl(SYS_PINFUNC) & (u32)(~SYS_PF_UR3); + pin_func |= SYS_PF_UR3; + au_writel(pin_func, SYS_PINFUNC); + + // enable UART + au_writel(0x01, UART3_ADDR+UART_MOD_CNTRL); // clock enable (CE) + mdelay(10); + au_writel(0x03, UART3_ADDR+UART_MOD_CNTRL); // CE and "enable" + mdelay(10); + + // enable DTR = USB power up + au_writel(0x01, UART3_ADDR+UART_MCR); //? UART_MCR_DTR is 0x01??? + +#ifdef CONFIG_PCMCIA_XXS1500 + /* setup pcmcia signals */ + au_writel(0, SYS_PININPUTEN); + + /* gpio 0, 1, and 4 are inputs */ + au_writel(1 | (1<<1) | (1<<4), SYS_TRIOUTCLR); + + /* enable GPIO2 if not already enabled */ + au_writel(1, GPIO2_ENABLE); + /* gpio2 208/9/10/11 are inputs */ + au_writel((1<<8) | (1<<9) | (1<<10) | (1<<11), GPIO2_DIR); + + /* turn off power */ + au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))|(1<<30), GPIO2_OUTPUT); +#endif + + +#ifdef CONFIG_PCI +#if defined(__MIPSEB__) + au_writel(0xf | (2<<6) | (1<<4), Au1500_PCI_CFG); +#else + au_writel(0xf, Au1500_PCI_CFG); +#endif +#endif +} |