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1da177e4 LT |
1 | /* |
2 | * Copyright 2000 MontaVista Software Inc. | |
3 | * Author: MontaVista Software, Inc. | |
4 | * ppopov@mvista.com or source@mvista.com | |
5 | * | |
6 | * Updates to 2.6, Pete Popov, Embedded Alley Solutions, Inc. | |
7 | * | |
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. | |
12 | * | |
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. | |
23 | * | |
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. | |
27 | */ | |
28 | #include <linux/config.h> | |
29 | #include <linux/init.h> | |
30 | #include <linux/sched.h> | |
31 | #include <linux/ioport.h> | |
32 | #include <linux/mm.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/interrupt.h> | |
efe29c0f | 35 | #include <linux/module.h> |
1da177e4 LT |
36 | |
37 | #include <asm/cpu.h> | |
38 | #include <asm/bootinfo.h> | |
39 | #include <asm/irq.h> | |
40 | #include <asm/mipsregs.h> | |
41 | #include <asm/reboot.h> | |
42 | #include <asm/pgtable.h> | |
43 | #include <asm/mach-au1x00/au1000.h> | |
44 | #include <asm/time.h> | |
45 | ||
46 | extern char * __init prom_getcmdline(void); | |
47 | extern void __init board_setup(void); | |
48 | extern void au1000_restart(char *); | |
49 | extern void au1000_halt(void); | |
50 | extern void au1000_power_off(void); | |
51 | extern struct resource ioport_resource; | |
52 | extern struct resource iomem_resource; | |
53 | extern void (*board_time_init)(void); | |
54 | extern void au1x_time_init(void); | |
55 | extern void (*board_timer_setup)(struct irqaction *irq); | |
56 | extern void au1x_timer_setup(struct irqaction *irq); | |
57 | extern void au1xxx_time_init(void); | |
58 | extern void au1xxx_timer_setup(struct irqaction *irq); | |
59 | extern void set_cpuspec(void); | |
60 | ||
c83cfc9c | 61 | void __init plat_setup(void) |
1da177e4 LT |
62 | { |
63 | struct cpu_spec *sp; | |
64 | char *argptr; | |
65 | unsigned long prid, cpupll, bclk = 1; | |
66 | ||
67 | set_cpuspec(); | |
68 | sp = cur_cpu_spec[0]; | |
69 | ||
70 | board_setup(); /* board specific setup */ | |
71 | ||
72 | prid = read_c0_prid(); | |
73 | cpupll = (au_readl(0xB1900060) & 0x3F) * 12; | |
74 | printk("(PRId %08lx) @ %ldMHZ\n", prid, cpupll); | |
75 | ||
76 | bclk = sp->cpu_bclk; | |
77 | if (bclk) | |
78 | { | |
79 | /* Enable BCLK switching */ | |
80 | bclk = au_readl(0xB190003C); | |
81 | au_writel(bclk | 0x60, 0xB190003C); | |
82 | printk("BCLK switching enabled!\n"); | |
83 | } | |
84 | ||
85 | if (sp->cpu_od) { | |
86 | /* Various early Au1000 Errata corrected by this */ | |
87 | set_c0_config(1<<19); /* Set Config[OD] */ | |
88 | } | |
89 | else { | |
90 | /* Clear to obtain best system bus performance */ | |
91 | clear_c0_config(1<<19); /* Clear Config[OD] */ | |
92 | } | |
93 | ||
94 | argptr = prom_getcmdline(); | |
95 | ||
b60ccd57 | 96 | #if defined(CONFIG_SERIAL_AU1X00_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) |
1da177e4 LT |
97 | if ((argptr = strstr(argptr, "console=")) == NULL) { |
98 | argptr = prom_getcmdline(); | |
99 | strcat(argptr, " console=ttyS0,115200"); | |
100 | } | |
42a3b4f2 | 101 | #endif |
1da177e4 LT |
102 | |
103 | #ifdef CONFIG_FB_AU1100 | |
104 | if ((argptr = strstr(argptr, "video=")) == NULL) { | |
105 | argptr = prom_getcmdline(); | |
106 | /* default panel */ | |
107 | /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/ | |
108 | #ifdef CONFIG_MIPS_HYDROGEN3 | |
109 | strcat(argptr, " video=au1100fb:panel:Hydrogen_3_NEC_panel_320x240,nohwcursor"); | |
1da177e4 LT |
110 | #endif |
111 | } | |
112 | #endif | |
1da177e4 LT |
113 | |
114 | #ifdef CONFIG_FB_XPERT98 | |
115 | if ((argptr = strstr(argptr, "video=")) == NULL) { | |
116 | argptr = prom_getcmdline(); | |
117 | strcat(argptr, " video=atyfb:1024x768-8@70"); | |
118 | } | |
119 | #endif | |
120 | ||
121 | #if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000) | |
122 | /* au1000 does not support vra, au1500 and au1100 do */ | |
123 | strcat(argptr, " au1000_audio=vra"); | |
124 | argptr = prom_getcmdline(); | |
125 | #endif | |
126 | _machine_restart = au1000_restart; | |
127 | _machine_halt = au1000_halt; | |
128 | _machine_power_off = au1000_power_off; | |
129 | board_time_init = au1xxx_time_init; | |
130 | board_timer_setup = au1xxx_timer_setup; | |
131 | ||
132 | /* IO/MEM resources. */ | |
133 | set_io_port_base(0); | |
134 | ioport_resource.start = IOPORT_RESOURCE_START; | |
135 | ioport_resource.end = IOPORT_RESOURCE_END; | |
136 | iomem_resource.start = IOMEM_RESOURCE_START; | |
137 | iomem_resource.end = IOMEM_RESOURCE_END; | |
138 | ||
139 | while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_E0S); | |
140 | au_writel(SYS_CNTRL_E0 | SYS_CNTRL_EN0, SYS_COUNTER_CNTRL); | |
141 | au_sync(); | |
142 | while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T0S); | |
143 | au_writel(0, SYS_TOYTRIM); | |
1da177e4 LT |
144 | } |
145 | ||
1da177e4 LT |
146 | #if defined(CONFIG_64BIT_PHYS_ADDR) |
147 | /* This routine should be valid for all Au1x based boards */ | |
c3455b0e | 148 | phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size) |
1da177e4 LT |
149 | { |
150 | u32 start, end; | |
151 | ||
152 | /* Don't fixup 36 bit addresses */ | |
153 | if ((phys_addr >> 32) != 0) return phys_addr; | |
154 | ||
155 | #ifdef CONFIG_PCI | |
156 | start = (u32)Au1500_PCI_MEM_START; | |
157 | end = (u32)Au1500_PCI_MEM_END; | |
158 | /* check for pci memory window */ | |
159 | if ((phys_addr >= start) && ((phys_addr + size) < end)) { | |
160 | return (phys_t)((phys_addr - start) + Au1500_PCI_MEM_START); | |
161 | } | |
162 | #endif | |
163 | ||
164 | /* All Au1x SOCs have a pcmcia controller */ | |
165 | /* We setup our 32 bit pseudo addresses to be equal to the | |
166 | * 36 bit addr >> 4, to make it easier to check the address | |
167 | * and fix it. | |
168 | * The Au1x socket 0 phys attribute address is 0xF 4000 0000. | |
169 | * The pseudo address we use is 0xF400 0000. Any address over | |
170 | * 0xF400 0000 is a pcmcia pseudo address. | |
171 | */ | |
172 | if ((phys_addr >= 0xF4000000) && (phys_addr < 0xFFFFFFFF)) { | |
173 | return (phys_t)(phys_addr << 4); | |
174 | } | |
175 | ||
176 | /* default nop */ | |
177 | return phys_addr; | |
178 | } | |
efe29c0f | 179 | EXPORT_SYMBOL(__fixup_bigphys_addr); |
1da177e4 | 180 | #endif |