| /* |
| * |
| * BRIEF MODULE DESCRIPTION |
| * 4G Systems MTX-1 board setup. |
| * |
| * Copyright 2003, 2008 MontaVista Software Inc. |
| * Author: MontaVista Software, Inc. <source@mvista.com> |
| * Bruno Randolf <bruno.randolf@4g-systems.biz> |
| * |
| * 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/gpio.h> |
| #include <linux/init.h> |
| |
| #include <asm/mach-au1x00/au1000.h> |
| |
| #include <prom.h> |
| |
| extern int (*board_pci_idsel)(unsigned int devsel, int assert); |
| int mtx1_pci_idsel(unsigned int devsel, int assert); |
| |
| void board_reset(void) |
| { |
| /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */ |
| au_writel(0x00000000, 0xAE00001C); |
| } |
| |
| void __init board_setup(void) |
| { |
| #ifdef CONFIG_SERIAL_8250_CONSOLE |
| char *argptr; |
| argptr = prom_getcmdline(); |
| argptr = strstr(argptr, "console="); |
| if (argptr == NULL) { |
| argptr = prom_getcmdline(); |
| strcat(argptr, " console=ttyS0,115200"); |
| } |
| #endif |
| |
| alchemy_gpio2_enable(); |
| |
| #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) |
| /* Enable USB power switch */ |
| alchemy_gpio_direction_output(204, 0); |
| #endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */ |
| |
| #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 |
| |
| /* Initialize sys_pinfunc */ |
| au_writel(SYS_PF_NI2, SYS_PINFUNC); |
| |
| /* Initialize GPIO */ |
| au_writel(0xFFFFFFFF, SYS_TRIOUTCLR); |
| alchemy_gpio_direction_output(0, 0); /* Disable M66EN (PCI 66MHz) */ |
| alchemy_gpio_direction_output(3, 1); /* Disable PCI CLKRUN# */ |
| alchemy_gpio_direction_output(1, 1); /* Enable EXT_IO3 */ |
| alchemy_gpio_direction_output(5, 0); /* Disable eth PHY TX_ER */ |
| |
| /* Enable LED and set it to green */ |
| alchemy_gpio_direction_output(211, 1); /* green on */ |
| alchemy_gpio_direction_output(212, 0); /* red off */ |
| |
| board_pci_idsel = mtx1_pci_idsel; |
| |
| printk(KERN_INFO "4G Systems MTX-1 Board\n"); |
| } |
| |
| int |
| mtx1_pci_idsel(unsigned int devsel, int assert) |
| { |
| #define MTX_IDSEL_ONLY_0_AND_3 0 |
| #if MTX_IDSEL_ONLY_0_AND_3 |
| if (devsel != 0 && devsel != 3) { |
| printk(KERN_ERR "*** not 0 or 3\n"); |
| return 0; |
| } |
| #endif |
| |
| if (assert && devsel != 0) |
| /* Suppress signal to Cardbus */ |
| gpio_set_value(1, 0); /* set EXT_IO3 OFF */ |
| else |
| gpio_set_value(1, 1); /* set EXT_IO3 ON */ |
| |
| au_sync_udelay(1); |
| return 1; |
| } |