aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/au1000/common/setup.c
blob: cc5138ce9c955f6903628e3ad2cf088ea7970571 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
/*
 * Copyright 2000 MontaVista Software Inc.
 * Author: MontaVista Software, Inc.
 *         	ppopov@mvista.com or source@mvista.com
 *
 * Updates to 2.6, Pete Popov, Embedded Alley Solutions, Inc.
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *  You should have received a copy of the  GNU General Public License along
 *  with this program; if not, write  to the Free Software Foundation, Inc.,
 *  675 Mass Ave, Cambridge, MA 02139, USA.
 */
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/ioport.h>
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/pm.h>

#include <asm/cpu.h>
#include <asm/bootinfo.h>
#include <asm/irq.h>
#include <asm/mipsregs.h>
#include <asm/reboot.h>
#include <asm/pgtable.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/time.h>

extern char * __init prom_getcmdline(void);
extern void __init board_setup(void);
extern void au1000_restart(char *);
extern void au1000_halt(void);
extern void au1000_power_off(void);
extern void au1x_time_init(void);
extern void au1x_timer_setup(struct irqaction *irq);
extern void au1xxx_time_init(void);
extern void au1xxx_timer_setup(struct irqaction *irq);
extern void set_cpuspec(void);

void __init plat_mem_setup(void)
{
	struct	cpu_spec *sp;
	char *argptr;
	unsigned long prid, cpupll, bclk = 1;

	set_cpuspec();
	sp = cur_cpu_spec[0];

	board_setup();  /* board specific setup */

	prid = read_c0_prid();
	cpupll = (au_readl(0xB1900060) & 0x3F) * 12;
	printk("(PRId %08lx) @ %ldMHZ\n", prid, cpupll);

	bclk = sp->cpu_bclk;
	if (bclk)
	{
		/* Enable BCLK switching */
		bclk = au_readl(0xB190003C);
		au_writel(bclk | 0x60, 0xB190003C);
		printk("BCLK switching enabled!\n");
	}

	if (sp->cpu_od) {
		/* Various early Au1000 Errata corrected by this */
		set_c0_config(1<<19); /* Set Config[OD] */
	}
	else {
		/* Clear to obtain best system bus performance */
		clear_c0_config(1<<19); /* Clear Config[OD] */
	}

	argptr = prom_getcmdline();

#ifdef CONFIG_SERIAL_8250_CONSOLE
	if ((argptr = strstr(argptr, "console=")) == NULL) {
		argptr = prom_getcmdline();
		strcat(argptr, " console=ttyS0,115200");
	}
#endif

#ifdef CONFIG_FB_AU1100
    if ((argptr = strstr(argptr, "video=")) == NULL) {
        argptr = prom_getcmdline();
        /* default panel */
        /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/
#ifdef CONFIG_MIPS_HYDROGEN3
         strcat(argptr, " video=au1100fb:panel:Hydrogen_3_NEC_panel_320x240,nohwcursor");
#endif
    }
#endif

#ifdef CONFIG_FB_XPERT98
	if ((argptr = strstr(argptr, "video=")) == NULL) {
		argptr = prom_getcmdline();
		strcat(argptr, " video=atyfb:1024x768-8@70");
	}
#endif

#if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000)
	/* au1000 does not support vra, au1500 and au1100 do */
	strcat(argptr, " au1000_audio=vra");
	argptr = prom_getcmdline();
#endif
	_machine_restart = au1000_restart;
	_machine_halt = au1000_halt;
	pm_power_off = au1000_power_off;
	board_time_init = au1xxx_time_init;
	board_timer_setup = au1xxx_timer_setup;

	/* IO/MEM resources. */
	set_io_port_base(0);
	ioport_resource.start = IOPORT_RESOURCE_START;
	ioport_resource.end = IOPORT_RESOURCE_END;
	iomem_resource.start = IOMEM_RESOURCE_START;
	iomem_resource.end = IOMEM_RESOURCE_END;

	while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_E0S);
	au_writel(SYS_CNTRL_E0 | SYS_CNTRL_EN0, SYS_COUNTER_CNTRL);
	au_sync();
	while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T0S);
	au_writel(0, SYS_TOYTRIM);
}

#if defined(CONFIG_64BIT_PHYS_ADDR)
/* This routine should be valid for all Au1x based boards */
phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
{
	u32 start, end;

	/* Don't fixup 36 bit addresses */
	if ((phys_addr >> 32) != 0) return phys_addr;

#ifdef CONFIG_PCI
	start = (u32)Au1500_PCI_MEM_START;
	end = (u32)Au1500_PCI_MEM_END;
	/* check for pci memory window */
	if ((phys_addr >= start) && ((phys_addr + size) < end)) {
		return (phys_t)((phys_addr - start) + Au1500_PCI_MEM_START);
	}
#endif

	/* All Au1x SOCs have a pcmcia controller */
	/* We setup our 32 bit pseudo addresses to be equal to the
	 * 36 bit addr >> 4, to make it easier to check the address
	 * and fix it.
	 * The Au1x socket 0 phys attribute address is 0xF 4000 0000.
	 * The pseudo address we use is 0xF400 0000. Any address over
	 * 0xF400 0000 is a pcmcia pseudo address.
	 */
	if ((phys_addr >= 0xF4000000) && (phys_addr < 0xFFFFFFFF)) {
		return (phys_t)(phys_addr << 4);
	}

	/* default nop */
	return phys_addr;
}
EXPORT_SYMBOL(__fixup_bigphys_addr);
#endif