| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * |
| 3 | * BRIEF MODULE DESCRIPTION |
| 4 | * 4G Systems MTX-1 board setup. |
| 5 | * |
| 6 | * Copyright 2003 MontaVista Software Inc. |
| 7 | * Author: MontaVista Software, Inc. |
| 8 | * ppopov@mvista.com or source@mvista.com |
| 9 | * Bruno Randolf <bruno.randolf@4g-systems.biz> |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU General Public License as published by the |
| 13 | * Free Software Foundation; either version 2 of the License, or (at your |
| 14 | * option) any later version. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 19 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 21 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 22 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 23 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 25 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | * |
| 27 | * You should have received a copy of the GNU General Public License along |
| 28 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 29 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 30 | */ |
| 31 | #include <linux/config.h> |
| 32 | #include <linux/init.h> |
| 33 | #include <linux/sched.h> |
| 34 | #include <linux/ioport.h> |
| 35 | #include <linux/mm.h> |
| 36 | #include <linux/console.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 | |
| 47 | void board_reset (void) |
| 48 | { |
| 49 | /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */ |
| 50 | au_writel(0x00000000, 0xAE00001C); |
| 51 | } |
| 52 | |
| 53 | void __init board_setup(void) |
| 54 | { |
| 55 | #if defined (CONFIG_USB_OHCI) || defined (CONFIG_AU1X00_USB_DEVICE) |
| 56 | #ifdef CONFIG_AU1X00_USB_DEVICE |
| 57 | // 2nd USB port is USB device |
| 58 | au_writel(au_readl(SYS_PINFUNC) & (u32)(~0x8000), SYS_PINFUNC); |
| 59 | #endif |
| 60 | // enable USB power switch |
| 61 | au_writel( au_readl(GPIO2_DIR) | 0x10, GPIO2_DIR ); |
| 62 | au_writel( 0x100000, GPIO2_OUTPUT ); |
| 63 | #endif // defined (CONFIG_USB_OHCI) || defined (CONFIG_AU1X00_USB_DEVICE) |
| 64 | |
| 65 | #ifdef CONFIG_PCI |
| 66 | #if defined(__MIPSEB__) |
| 67 | au_writel(0xf | (2<<6) | (1<<4), Au1500_PCI_CFG); |
| 68 | #else |
| 69 | au_writel(0xf, Au1500_PCI_CFG); |
| 70 | #endif |
| 71 | #endif |
| 72 | |
| 73 | // initialize sys_pinfunc: |
| 74 | // disable second ethernet port (SYS_PF_NI2) |
| 75 | // set U3/GPIO23 to GPIO23 (SYS_PF_U3) |
| 76 | au_writel( SYS_PF_NI2 | SYS_PF_U3, SYS_PINFUNC ); |
| 77 | |
| 78 | // initialize GPIO |
| 79 | au_writel( 0xFFFFFFFF, SYS_TRIOUTCLR ); |
| 80 | au_writel( 0x00000001, SYS_OUTPUTCLR ); // set M66EN (PCI 66MHz) to OFF |
| 81 | au_writel( 0x00000008, SYS_OUTPUTSET ); // set PCI CLKRUN# to OFF |
| 82 | au_writel( 0x00000020, SYS_OUTPUTCLR ); // set eth PHY TX_ER to OFF |
| 83 | |
| 84 | // enable LED and set it to green |
| 85 | au_writel( au_readl(GPIO2_DIR) | 0x1800, GPIO2_DIR ); |
| 86 | au_writel( 0x18000800, GPIO2_OUTPUT ); |
| 87 | |
| 88 | printk("4G Systems MTX-1 Board\n"); |
| 89 | } |