diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/au1000/common/setup.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/mips/au1000/common/setup.c')
-rw-r--r-- | arch/mips/au1000/common/setup.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/arch/mips/au1000/common/setup.c b/arch/mips/au1000/common/setup.c new file mode 100644 index 000000000000..dbc8b1bda963 --- /dev/null +++ b/arch/mips/au1000/common/setup.c | |||
@@ -0,0 +1,195 @@ | |||
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> | ||
35 | |||
36 | #include <asm/cpu.h> | ||
37 | #include <asm/bootinfo.h> | ||
38 | #include <asm/irq.h> | ||
39 | #include <asm/mipsregs.h> | ||
40 | #include <asm/reboot.h> | ||
41 | #include <asm/pgtable.h> | ||
42 | #include <asm/mach-au1x00/au1000.h> | ||
43 | #include <asm/time.h> | ||
44 | |||
45 | extern char * __init prom_getcmdline(void); | ||
46 | extern void __init board_setup(void); | ||
47 | extern void au1000_restart(char *); | ||
48 | extern void au1000_halt(void); | ||
49 | extern void au1000_power_off(void); | ||
50 | extern struct resource ioport_resource; | ||
51 | extern struct resource iomem_resource; | ||
52 | extern void (*board_time_init)(void); | ||
53 | extern void au1x_time_init(void); | ||
54 | extern void (*board_timer_setup)(struct irqaction *irq); | ||
55 | extern void au1x_timer_setup(struct irqaction *irq); | ||
56 | extern void au1xxx_time_init(void); | ||
57 | extern void au1xxx_timer_setup(struct irqaction *irq); | ||
58 | extern void set_cpuspec(void); | ||
59 | |||
60 | static int __init au1x00_setup(void) | ||
61 | { | ||
62 | struct cpu_spec *sp; | ||
63 | char *argptr; | ||
64 | unsigned long prid, cpupll, bclk = 1; | ||
65 | |||
66 | set_cpuspec(); | ||
67 | sp = cur_cpu_spec[0]; | ||
68 | |||
69 | board_setup(); /* board specific setup */ | ||
70 | |||
71 | prid = read_c0_prid(); | ||
72 | cpupll = (au_readl(0xB1900060) & 0x3F) * 12; | ||
73 | printk("(PRId %08lx) @ %ldMHZ\n", prid, cpupll); | ||
74 | |||
75 | bclk = sp->cpu_bclk; | ||
76 | if (bclk) | ||
77 | { | ||
78 | /* Enable BCLK switching */ | ||
79 | bclk = au_readl(0xB190003C); | ||
80 | au_writel(bclk | 0x60, 0xB190003C); | ||
81 | printk("BCLK switching enabled!\n"); | ||
82 | } | ||
83 | |||
84 | if (sp->cpu_od) { | ||
85 | /* Various early Au1000 Errata corrected by this */ | ||
86 | set_c0_config(1<<19); /* Set Config[OD] */ | ||
87 | } | ||
88 | else { | ||
89 | /* Clear to obtain best system bus performance */ | ||
90 | clear_c0_config(1<<19); /* Clear Config[OD] */ | ||
91 | } | ||
92 | |||
93 | argptr = prom_getcmdline(); | ||
94 | |||
95 | #ifdef CONFIG_SERIAL_AU1X00_CONSOLE | ||
96 | if ((argptr = strstr(argptr, "console=")) == NULL) { | ||
97 | argptr = prom_getcmdline(); | ||
98 | strcat(argptr, " console=ttyS0,115200"); | ||
99 | } | ||
100 | #endif | ||
101 | |||
102 | #ifdef CONFIG_FB_AU1100 | ||
103 | if ((argptr = strstr(argptr, "video=")) == NULL) { | ||
104 | argptr = prom_getcmdline(); | ||
105 | /* default panel */ | ||
106 | /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/ | ||
107 | #ifdef CONFIG_MIPS_HYDROGEN3 | ||
108 | strcat(argptr, " video=au1100fb:panel:Hydrogen_3_NEC_panel_320x240,nohwcursor"); | ||
109 | #else | ||
110 | strcat(argptr, " video=au1100fb:panel:s10,nohwcursor"); | ||
111 | #endif | ||
112 | } | ||
113 | #endif | ||
114 | |||
115 | #ifdef CONFIG_FB_E1356 | ||
116 | if ((argptr = strstr(argptr, "video=")) == NULL) { | ||
117 | argptr = prom_getcmdline(); | ||
118 | #ifdef CONFIG_MIPS_PB1000 | ||
119 | strcat(argptr, " video=e1356fb:system:pb1000,mmunalign:1"); | ||
120 | #else | ||
121 | strcat(argptr, " video=e1356fb:system:pb1500"); | ||
122 | #endif | ||
123 | } | ||
124 | #endif | ||
125 | |||
126 | #ifdef CONFIG_FB_XPERT98 | ||
127 | if ((argptr = strstr(argptr, "video=")) == NULL) { | ||
128 | argptr = prom_getcmdline(); | ||
129 | strcat(argptr, " video=atyfb:1024x768-8@70"); | ||
130 | } | ||
131 | #endif | ||
132 | |||
133 | #if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000) | ||
134 | /* au1000 does not support vra, au1500 and au1100 do */ | ||
135 | strcat(argptr, " au1000_audio=vra"); | ||
136 | argptr = prom_getcmdline(); | ||
137 | #endif | ||
138 | _machine_restart = au1000_restart; | ||
139 | _machine_halt = au1000_halt; | ||
140 | _machine_power_off = au1000_power_off; | ||
141 | board_time_init = au1xxx_time_init; | ||
142 | board_timer_setup = au1xxx_timer_setup; | ||
143 | |||
144 | /* IO/MEM resources. */ | ||
145 | set_io_port_base(0); | ||
146 | ioport_resource.start = IOPORT_RESOURCE_START; | ||
147 | ioport_resource.end = IOPORT_RESOURCE_END; | ||
148 | iomem_resource.start = IOMEM_RESOURCE_START; | ||
149 | iomem_resource.end = IOMEM_RESOURCE_END; | ||
150 | |||
151 | while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_E0S); | ||
152 | au_writel(SYS_CNTRL_E0 | SYS_CNTRL_EN0, SYS_COUNTER_CNTRL); | ||
153 | au_sync(); | ||
154 | while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T0S); | ||
155 | au_writel(0, SYS_TOYTRIM); | ||
156 | |||
157 | return 0; | ||
158 | } | ||
159 | |||
160 | early_initcall(au1x00_setup); | ||
161 | |||
162 | #if defined(CONFIG_64BIT_PHYS_ADDR) | ||
163 | /* This routine should be valid for all Au1x based boards */ | ||
164 | phys_t fixup_bigphys_addr(phys_t phys_addr, phys_t size) | ||
165 | { | ||
166 | u32 start, end; | ||
167 | |||
168 | /* Don't fixup 36 bit addresses */ | ||
169 | if ((phys_addr >> 32) != 0) return phys_addr; | ||
170 | |||
171 | #ifdef CONFIG_PCI | ||
172 | start = (u32)Au1500_PCI_MEM_START; | ||
173 | end = (u32)Au1500_PCI_MEM_END; | ||
174 | /* check for pci memory window */ | ||
175 | if ((phys_addr >= start) && ((phys_addr + size) < end)) { | ||
176 | return (phys_t)((phys_addr - start) + Au1500_PCI_MEM_START); | ||
177 | } | ||
178 | #endif | ||
179 | |||
180 | /* All Au1x SOCs have a pcmcia controller */ | ||
181 | /* We setup our 32 bit pseudo addresses to be equal to the | ||
182 | * 36 bit addr >> 4, to make it easier to check the address | ||
183 | * and fix it. | ||
184 | * The Au1x socket 0 phys attribute address is 0xF 4000 0000. | ||
185 | * The pseudo address we use is 0xF400 0000. Any address over | ||
186 | * 0xF400 0000 is a pcmcia pseudo address. | ||
187 | */ | ||
188 | if ((phys_addr >= 0xF4000000) && (phys_addr < 0xFFFFFFFF)) { | ||
189 | return (phys_t)(phys_addr << 4); | ||
190 | } | ||
191 | |||
192 | /* default nop */ | ||
193 | return phys_addr; | ||
194 | } | ||
195 | #endif | ||