3 * BRIEF MODULE DESCRIPTION
4 * Alchemy Pb1550 board setup.
6 * Copyright 2000, 2008 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc. <source@mvista.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
15 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
16 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
17 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
20 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
21 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 * You should have received a copy of the GNU General Public License along
26 * with this program; if not, write to the Free Software Foundation, Inc.,
27 * 675 Mass Ave, Cambridge, MA 02139, USA.
30 #include <linux/init.h>
31 #include <linux/interrupt.h>
33 #include <asm/mach-au1x00/au1000.h>
34 #include <asm/mach-pb1x00/pb1550.h>
35 #include <asm/mach-db1x00/bcsr.h>
36 #include <asm/mach-au1x00/gpio.h>
41 char irq_tab_alchemy[][5] __initdata = {
42 [12] = { -1, AU1550_PCI_INTB, AU1550_PCI_INTC, AU1550_PCI_INTD, AU1550_PCI_INTA }, /* IDSEL 12 - PCI slot 2 (left) */
43 [13] = { -1, AU1550_PCI_INTA, AU1550_PCI_INTB, AU1550_PCI_INTC, AU1550_PCI_INTD }, /* IDSEL 13 - PCI slot 1 (right) */
46 const char *get_system_type(void)
48 return "Alchemy Pb1550";
51 void board_reset(void)
53 bcsr_write(BCSR_SYSTEM, 0);
56 void __init board_setup(void)
61 bcsr_init(PB1550_BCSR_PHYS_ADDR,
62 PB1550_BCSR_PHYS_ADDR + PB1550_BCSR_HEXLED_OFS);
64 argptr = prom_getcmdline();
65 #ifdef CONFIG_SERIAL_8250_CONSOLE
66 argptr = strstr(argptr, "console=");
68 argptr = prom_getcmdline();
69 strcat(argptr, " console=ttyS0,115200");
73 alchemy_gpio2_enable();
76 * Enable PSC1 SYNC for AC'97. Normaly done in audio driver,
77 * but it is board specific code, so put it here.
79 pin_func = au_readl(SYS_PINFUNC);
81 pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1;
82 au_writel(pin_func, SYS_PINFUNC);
84 bcsr_write(BCSR_PCMCIA, 0); /* turn off PCMCIA power */
86 printk(KERN_INFO "AMD Alchemy Pb1550 Board\n");
89 static int __init pb1550_init_irq(void)
91 set_irq_type(AU1550_GPIO0_INT, IRQF_TRIGGER_LOW);
92 set_irq_type(AU1550_GPIO1_INT, IRQF_TRIGGER_LOW);
93 set_irq_type(AU1550_GPIO201_205_INT, IRQF_TRIGGER_HIGH);
95 /* enable both PCMCIA card irqs in the shared line */
96 alchemy_gpio2_enable_int(201);
97 alchemy_gpio2_enable_int(202);
101 arch_initcall(pb1550_init_irq);