2 * Copyright 2002, 2008 MontaVista Software Inc.
3 * Author: MontaVista Software, Inc. <source@mvista.com>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
11 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
13 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
14 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
15 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
16 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
17 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
18 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
19 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
21 * You should have received a copy of the GNU General Public License along
22 * with this program; if not, write to the Free Software Foundation, Inc.,
23 * 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include <linux/gpio.h>
27 #include <linux/init.h>
28 #include <linux/delay.h>
29 #include <linux/interrupt.h>
31 #include <asm/mach-au1x00/au1000.h>
32 #include <asm/mach-pb1x00/pb1100.h>
33 #include <asm/mach-db1x00/bcsr.h>
38 struct au1xxx_irqmap __initdata au1xxx_irq_map[] = {
39 { AU1000_GPIO_9, IRQF_TRIGGER_LOW, 0 }, /* PCMCIA Card Fully_Inserted# */
40 { AU1000_GPIO_10, IRQF_TRIGGER_LOW, 0 }, /* PCMCIA Card STSCHG# */
41 { AU1000_GPIO_11, IRQF_TRIGGER_LOW, 0 }, /* PCMCIA Card IRQ# */
42 { AU1000_GPIO_13, IRQF_TRIGGER_LOW, 0 }, /* DC_IRQ# */
46 const char *get_system_type(void)
48 return "Alchemy Pb1100";
51 void board_reset(void)
53 bcsr_write(BCSR_SYSTEM, 0);
56 void __init board_init_irq(void)
58 au1xxx_setup_irqmap(au1xxx_irq_map, ARRAY_SIZE(au1xxx_irq_map));
61 void __init board_setup(void)
63 volatile void __iomem *base = (volatile void __iomem *)0xac000000UL;
66 bcsr_init(DB1000_BCSR_PHYS_ADDR,
67 DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS);
69 argptr = prom_getcmdline();
70 #ifdef CONFIG_SERIAL_8250_CONSOLE
71 argptr = strstr(argptr, "console=");
73 argptr = prom_getcmdline();
74 strcat(argptr, " console=ttyS0,115200");
78 #ifdef CONFIG_FB_AU1100
79 argptr = strstr(argptr, "video=");
81 argptr = prom_getcmdline();
83 /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/
87 #if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000)
88 /* au1000 does not support vra, au1500 and au1100 do */
89 strcat(argptr, " au1000_audio=vra");
90 argptr = prom_getcmdline();
93 /* Set AUX clock to 12 MHz * 8 = 96 MHz */
94 au_writel(8, SYS_AUXPLL);
95 alchemy_gpio1_input_enable();
98 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
100 u32 pin_func, sys_freqctrl, sys_clksrc;
102 /* Configure pins GPIO[14:9] as GPIO */
103 pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3;
105 /* Zero and disable FREQ2 */
106 sys_freqctrl = au_readl(SYS_FREQCTRL0);
107 sys_freqctrl &= ~0xFFF00000;
108 au_writel(sys_freqctrl, SYS_FREQCTRL0);
110 /* Zero and disable USBH/USBD/IrDA clock */
111 sys_clksrc = au_readl(SYS_CLKSRC);
112 sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK);
113 au_writel(sys_clksrc, SYS_CLKSRC);
115 sys_freqctrl = au_readl(SYS_FREQCTRL0);
116 sys_freqctrl &= ~0xFFF00000;
118 sys_clksrc = au_readl(SYS_CLKSRC);
119 sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK);
121 /* FREQ2 = aux / 2 = 48 MHz */
122 sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) |
123 SYS_FC_FE2 | SYS_FC_FS2;
124 au_writel(sys_freqctrl, SYS_FREQCTRL0);
127 * Route 48 MHz FREQ2 into USBH/USBD/IrDA
129 sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MIR_BIT;
130 au_writel(sys_clksrc, SYS_CLKSRC);
132 /* Setup the static bus controller */
133 au_writel(0x00000002, MEM_STCFG3); /* type = PCMCIA */
134 au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */
135 au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
138 * Get USB Functionality pin state (device vs host drive pins).
140 pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_USB;
141 /* 2nd USB port is USB host. */
142 pin_func |= SYS_PF_USB;
143 au_writel(pin_func, SYS_PINFUNC);
145 #endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
147 /* Enable sys bus clock divider when IDLE state or no bus activity. */
148 au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
150 /* Enable the RTC if not already enabled. */
151 if (!(readb(base + 0x28) & 0x20)) {
152 writeb(readb(base + 0x28) | 0x20, base + 0x28);
155 /* Put the clock in BCD mode. */
156 if (readb(base + 0x2C) & 0x4) { /* reg B */
157 writeb(readb(base + 0x2c) & ~0x4, base + 0x2c);