Commit | Line | Data |
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e3ad1c23 PP |
1 | /* |
2 | * | |
3 | * BRIEF MODULE DESCRIPTION | |
4 | * Alchemy Pb1200/Db1200 board setup. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. | |
10 | * | |
11 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
12 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
13 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | |
14 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
15 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
16 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
17 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | |
18 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
19 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
20 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License along | |
23 | * with this program; if not, write to the Free Software Foundation, Inc., | |
24 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | */ | |
ce28f94c | 26 | |
e3ad1c23 | 27 | #include <linux/init.h> |
7e50b2b7 | 28 | #include <linux/interrupt.h> |
e3ad1c23 | 29 | #include <linux/sched.h> |
25b31cb1 | 30 | |
7e50b2b7 | 31 | #include <asm/mach-au1x00/au1000.h> |
9bdcf336 ML |
32 | #include <asm/mach-db1x00/bcsr.h> |
33 | ||
7e50b2b7 ML |
34 | #ifdef CONFIG_MIPS_PB1200 |
35 | #include <asm/mach-pb1x00/pb1200.h> | |
36 | #endif | |
e3ad1c23 | 37 | |
7e50b2b7 ML |
38 | #ifdef CONFIG_MIPS_DB1200 |
39 | #include <asm/mach-db1x00/db1200.h> | |
40 | #define PB1200_INT_BEGIN DB1200_INT_BEGIN | |
41 | #define PB1200_INT_END DB1200_INT_END | |
42 | #endif | |
43 | ||
44 | #include <prom.h> | |
e3ad1c23 | 45 | |
23ba25d5 ML |
46 | const char *get_system_type(void) |
47 | { | |
48 | return "Alchemy Pb1200"; | |
49 | } | |
50 | ||
e3ad1c23 PP |
51 | void __init board_setup(void) |
52 | { | |
9bdcf336 ML |
53 | printk(KERN_INFO "AMD Alchemy Pb1200 Board\n"); |
54 | bcsr_init(PB1200_BCSR_PHYS_ADDR, | |
55 | PB1200_BCSR_PHYS_ADDR + PB1200_BCSR_HEXLED_OFS); | |
9bdcf336 | 56 | |
e3ad1c23 | 57 | #if 0 |
f5cd9f14 | 58 | { |
c3d1d5c8 SS |
59 | u32 pin_func; |
60 | ||
61 | /* | |
62 | * Enable PSC1 SYNC for AC97. Normaly done in audio driver, | |
63 | * but it is board specific code, so put it here. | |
64 | */ | |
65 | pin_func = au_readl(SYS_PINFUNC); | |
66 | au_sync(); | |
67 | pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1; | |
68 | au_writel(pin_func, SYS_PINFUNC); | |
69 | ||
70 | au_writel(0, (u32)bcsr | 0x10); /* turn off PCMCIA power */ | |
71 | au_sync(); | |
f5cd9f14 | 72 | } |
e3ad1c23 PP |
73 | #endif |
74 | ||
64abf64d | 75 | #if defined(CONFIG_I2C_AU1550) |
e3ad1c23 | 76 | { |
c3d1d5c8 SS |
77 | u32 freq0, clksrc; |
78 | u32 pin_func; | |
79 | ||
80 | /* Select SMBus in CPLD */ | |
9bdcf336 | 81 | bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC0MUX, 0); |
c3d1d5c8 SS |
82 | |
83 | pin_func = au_readl(SYS_PINFUNC); | |
84 | au_sync(); | |
85 | pin_func &= ~(SYS_PINFUNC_P0A | SYS_PINFUNC_P0B); | |
86 | /* Set GPIOs correctly */ | |
87 | pin_func |= 2 << 17; | |
88 | au_writel(pin_func, SYS_PINFUNC); | |
89 | au_sync(); | |
90 | ||
91 | /* The I2C driver depends on 50 MHz clock */ | |
92 | freq0 = au_readl(SYS_FREQCTRL0); | |
93 | au_sync(); | |
94 | freq0 &= ~(SYS_FC_FRDIV1_MASK | SYS_FC_FS1 | SYS_FC_FE1); | |
95 | freq0 |= 3 << SYS_FC_FRDIV1_BIT; | |
96 | /* 396 MHz / (3 + 1) * 2 == 49.5 MHz */ | |
97 | au_writel(freq0, SYS_FREQCTRL0); | |
98 | au_sync(); | |
99 | freq0 |= SYS_FC_FE1; | |
100 | au_writel(freq0, SYS_FREQCTRL0); | |
101 | au_sync(); | |
102 | ||
103 | clksrc = au_readl(SYS_CLKSRC); | |
104 | au_sync(); | |
105 | clksrc &= ~(SYS_CS_CE0 | SYS_CS_DE0 | SYS_CS_ME0_MASK); | |
106 | /* Bit 22 is EXTCLK0 for PSC0 */ | |
107 | clksrc |= SYS_CS_MUX_FQ1 << SYS_CS_ME0_BIT; | |
108 | au_writel(clksrc, SYS_CLKSRC); | |
109 | au_sync(); | |
e3ad1c23 PP |
110 | } |
111 | #endif | |
112 | ||
c3d1d5c8 SS |
113 | /* |
114 | * The Pb1200 development board uses external MUX for PSC0 to | |
9bdcf336 | 115 | * support SMB/SPI. bcsr_resets bit 12: 0=SMB 1=SPI |
c3d1d5c8 | 116 | */ |
6fec2e17 | 117 | #ifdef CONFIG_I2C_AU1550 |
9bdcf336 | 118 | bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC0MUX, 0); |
e3ad1c23 PP |
119 | #endif |
120 | au_sync(); | |
e3ad1c23 | 121 | } |
64abf64d | 122 | |
7e50b2b7 ML |
123 | static int __init pb1200_init_irq(void) |
124 | { | |
7e50b2b7 ML |
125 | /* We have a problem with CPLD rev 3. */ |
126 | if (BCSR_WHOAMI_CPLD(bcsr_read(BCSR_WHOAMI)) <= 3) { | |
127 | printk(KERN_ERR "WARNING!!!\n"); | |
128 | printk(KERN_ERR "WARNING!!!\n"); | |
129 | printk(KERN_ERR "WARNING!!!\n"); | |
130 | printk(KERN_ERR "WARNING!!!\n"); | |
131 | printk(KERN_ERR "WARNING!!!\n"); | |
132 | printk(KERN_ERR "WARNING!!!\n"); | |
133 | printk(KERN_ERR "Pb1200 must be at CPLD rev 4. Please have Pb1200\n"); | |
134 | printk(KERN_ERR "updated to latest revision. This software will\n"); | |
135 | printk(KERN_ERR "not work on anything less than CPLD rev 4.\n"); | |
136 | printk(KERN_ERR "WARNING!!!\n"); | |
137 | printk(KERN_ERR "WARNING!!!\n"); | |
138 | printk(KERN_ERR "WARNING!!!\n"); | |
139 | printk(KERN_ERR "WARNING!!!\n"); | |
140 | printk(KERN_ERR "WARNING!!!\n"); | |
141 | printk(KERN_ERR "WARNING!!!\n"); | |
142 | panic("Game over. Your score is 0."); | |
143 | } | |
7e50b2b7 | 144 | |
e4ec7989 | 145 | irq_set_irq_type(AU1200_GPIO7_INT, IRQF_TRIGGER_LOW); |
78814465 | 146 | bcsr_init_irq(PB1200_INT_BEGIN, PB1200_INT_END, AU1200_GPIO7_INT); |
7e50b2b7 ML |
147 | |
148 | return 0; | |
149 | } | |
150 | arch_initcall(pb1200_init_irq); | |
151 | ||
152 | ||
c3d1d5c8 | 153 | int board_au1200fb_panel(void) |
64abf64d | 154 | { |
9bdcf336 | 155 | return (bcsr_read(BCSR_SWITCHES) >> 8) & 0x0f; |
64abf64d PP |
156 | } |
157 | ||
c3d1d5c8 | 158 | int board_au1200fb_panel_init(void) |
64abf64d PP |
159 | { |
160 | /* Apply power */ | |
9bdcf336 ML |
161 | bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | |
162 | BCSR_BOARD_LCDBL); | |
c3d1d5c8 | 163 | /* printk(KERN_DEBUG "board_au1200fb_panel_init()\n"); */ |
64abf64d PP |
164 | return 0; |
165 | } | |
166 | ||
c3d1d5c8 | 167 | int board_au1200fb_panel_shutdown(void) |
64abf64d PP |
168 | { |
169 | /* Remove power */ | |
9bdcf336 ML |
170 | bcsr_mod(BCSR_BOARD, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | |
171 | BCSR_BOARD_LCDBL, 0); | |
c3d1d5c8 | 172 | /* printk(KERN_DEBUG "board_au1200fb_panel_shutdown()\n"); */ |
64abf64d PP |
173 | return 0; |
174 | } |