2 * Copyright 2000 MontaVista Software Inc.
3 * Author: MontaVista Software, Inc.
4 * ppopov@mvista.com or source@mvista.com
6 * Updates to 2.6, Pete Popov, Embedded Alley Solutions, Inc.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <linux/config.h>
29 #include <linux/init.h>
30 #include <linux/sched.h>
31 #include <linux/ioport.h>
33 #include <linux/delay.h>
34 #include <linux/interrupt.h>
35 #include <linux/module.h>
39 #include <asm/bootinfo.h>
41 #include <asm/mipsregs.h>
42 #include <asm/reboot.h>
43 #include <asm/pgtable.h>
44 #include <asm/mach-au1x00/au1000.h>
47 extern char * __init prom_getcmdline(void);
48 extern void __init board_setup(void);
49 extern void au1000_restart(char *);
50 extern void au1000_halt(void);
51 extern void au1000_power_off(void);
52 extern struct resource ioport_resource;
53 extern struct resource iomem_resource;
54 extern void (*board_time_init)(void);
55 extern void au1x_time_init(void);
56 extern void (*board_timer_setup)(struct irqaction *irq);
57 extern void au1x_timer_setup(struct irqaction *irq);
58 extern void au1xxx_time_init(void);
59 extern void au1xxx_timer_setup(struct irqaction *irq);
60 extern void set_cpuspec(void);
62 void __init plat_setup(void)
66 unsigned long prid, cpupll, bclk = 1;
71 board_setup(); /* board specific setup */
73 prid = read_c0_prid();
74 cpupll = (au_readl(0xB1900060) & 0x3F) * 12;
75 printk("(PRId %08lx) @ %ldMHZ\n", prid, cpupll);
80 /* Enable BCLK switching */
81 bclk = au_readl(0xB190003C);
82 au_writel(bclk | 0x60, 0xB190003C);
83 printk("BCLK switching enabled!\n");
87 /* Various early Au1000 Errata corrected by this */
88 set_c0_config(1<<19); /* Set Config[OD] */
91 /* Clear to obtain best system bus performance */
92 clear_c0_config(1<<19); /* Clear Config[OD] */
95 argptr = prom_getcmdline();
97 #ifdef CONFIG_SERIAL_8250_CONSOLE
98 if ((argptr = strstr(argptr, "console=")) == NULL) {
99 argptr = prom_getcmdline();
100 strcat(argptr, " console=ttyS0,115200");
104 #ifdef CONFIG_FB_AU1100
105 if ((argptr = strstr(argptr, "video=")) == NULL) {
106 argptr = prom_getcmdline();
108 /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/
109 #ifdef CONFIG_MIPS_HYDROGEN3
110 strcat(argptr, " video=au1100fb:panel:Hydrogen_3_NEC_panel_320x240,nohwcursor");
115 #ifdef CONFIG_FB_XPERT98
116 if ((argptr = strstr(argptr, "video=")) == NULL) {
117 argptr = prom_getcmdline();
118 strcat(argptr, " video=atyfb:1024x768-8@70");
122 #if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000)
123 /* au1000 does not support vra, au1500 and au1100 do */
124 strcat(argptr, " au1000_audio=vra");
125 argptr = prom_getcmdline();
127 _machine_restart = au1000_restart;
128 _machine_halt = au1000_halt;
129 pm_power_off = au1000_power_off;
130 board_time_init = au1xxx_time_init;
131 board_timer_setup = au1xxx_timer_setup;
133 /* IO/MEM resources. */
135 ioport_resource.start = IOPORT_RESOURCE_START;
136 ioport_resource.end = IOPORT_RESOURCE_END;
137 iomem_resource.start = IOMEM_RESOURCE_START;
138 iomem_resource.end = IOMEM_RESOURCE_END;
140 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_E0S);
141 au_writel(SYS_CNTRL_E0 | SYS_CNTRL_EN0, SYS_COUNTER_CNTRL);
143 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T0S);
144 au_writel(0, SYS_TOYTRIM);
147 #if defined(CONFIG_64BIT_PHYS_ADDR)
148 /* This routine should be valid for all Au1x based boards */
149 phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
153 /* Don't fixup 36 bit addresses */
154 if ((phys_addr >> 32) != 0) return phys_addr;
157 start = (u32)Au1500_PCI_MEM_START;
158 end = (u32)Au1500_PCI_MEM_END;
159 /* check for pci memory window */
160 if ((phys_addr >= start) && ((phys_addr + size) < end)) {
161 return (phys_t)((phys_addr - start) + Au1500_PCI_MEM_START);
165 /* All Au1x SOCs have a pcmcia controller */
166 /* We setup our 32 bit pseudo addresses to be equal to the
167 * 36 bit addr >> 4, to make it easier to check the address
169 * The Au1x socket 0 phys attribute address is 0xF 4000 0000.
170 * The pseudo address we use is 0xF400 0000. Any address over
171 * 0xF400 0000 is a pcmcia pseudo address.
173 if ((phys_addr >= 0xF4000000) && (phys_addr < 0xFFFFFFFF)) {
174 return (phys_t)(phys_addr << 4);
180 EXPORT_SYMBOL(__fixup_bigphys_addr);