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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Author: Armin Kuster <akuster@mvista.com> |
3 | * | |
4 | * 2002 (c) MontaVista, Software, Inc. This file is licensed under | |
5 | * the terms of the GNU General Public License version 2. This program | |
6 | * is licensed "as is" without any warranty of any kind, whether express | |
7 | * or implied. | |
8 | */ | |
9 | ||
10 | #include <linux/config.h> | |
11 | #include <linux/init.h> | |
12 | #include <linux/pagemap.h> | |
d052d1be | 13 | #include <linux/platform_device.h> |
1da177e4 LT |
14 | #include <linux/ioport.h> |
15 | #include <asm/io.h> | |
16 | #include <asm/ppc4xx_pic.h> | |
17 | #include <linux/delay.h> | |
18 | #include <asm/machdep.h> | |
19 | ||
20 | /* | |
21 | * Define external IRQ senses and polarities. | |
22 | */ | |
23 | unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = { | |
24 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 7 */ | |
25 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 8 */ | |
26 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 9 */ | |
27 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 0 */ | |
28 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 1 */ | |
29 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 2 */ | |
30 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 3 */ | |
31 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 4 */ | |
32 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 5 */ | |
33 | (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 6 */ | |
34 | }; | |
35 | ||
36 | static struct resource smc91x_resources[] = { | |
37 | [0] = { | |
38 | .start = SMC91111_BASE_ADDR, | |
39 | .end = SMC91111_BASE_ADDR + SMC91111_REG_SIZE - 1, | |
40 | .flags = IORESOURCE_MEM, | |
41 | }, | |
42 | [1] = { | |
43 | .start = SMC91111_IRQ, | |
44 | .end = SMC91111_IRQ, | |
45 | .flags = IORESOURCE_IRQ, | |
46 | }, | |
47 | }; | |
48 | ||
49 | static struct platform_device smc91x_device = { | |
50 | .name = "smc91x", | |
51 | .id = 0, | |
52 | .num_resources = ARRAY_SIZE(smc91x_resources), | |
53 | .resource = smc91x_resources, | |
54 | }; | |
55 | ||
56 | static struct platform_device *redwood6_devs[] __initdata = { | |
57 | &smc91x_device, | |
58 | }; | |
59 | ||
60 | static int __init | |
61 | redwood6_platform_add_devices(void) | |
62 | { | |
63 | return platform_add_devices(redwood6_devs, ARRAY_SIZE(redwood6_devs)); | |
64 | } | |
65 | ||
66 | ||
67 | void __init | |
68 | redwood6_setup_arch(void) | |
69 | { | |
70 | #ifdef CONFIG_IDE | |
71 | void *xilinx, *xilinx_1, *xilinx_2; | |
72 | unsigned short us_reg5; | |
73 | #endif | |
74 | ||
75 | ppc4xx_setup_arch(); | |
76 | ||
77 | #ifdef CONFIG_IDE | |
78 | xilinx = (unsigned long) ioremap(IDE_XLINUX_MUX_BASE, 0x10); | |
79 | /* init xilinx control registers - enable ide mux, clear reset bit */ | |
80 | if (!xilinx) { | |
81 | printk(KERN_CRIT | |
82 | "redwood6_setup_arch() xilinxi ioremap failed\n"); | |
83 | return; | |
84 | } | |
85 | xilinx_1 = xilinx + 0xa; | |
86 | xilinx_2 = xilinx + 0xe; | |
87 | ||
88 | us_reg5 = readb(xilinx_1); | |
89 | writeb(0x01d1, xilinx_1); | |
90 | writeb(0x0008, xilinx_2); | |
91 | ||
92 | udelay(10 * 1000); | |
93 | ||
94 | writeb(0x01d1, xilinx_1); | |
95 | writeb(0x0008, xilinx_2); | |
96 | #endif | |
97 | ||
98 | #ifdef DEBUG_BRINGUP | |
99 | bd_t *bip = (bd_t *) __res; | |
100 | printk("\n"); | |
101 | printk("machine\t: %s\n", PPC4xx_MACHINE_NAME); | |
102 | printk("\n"); | |
103 | printk("bi_s_version\t %s\n", bip->bi_s_version); | |
104 | printk("bi_r_version\t %s\n", bip->bi_r_version); | |
105 | printk("bi_memsize\t 0x%8.8x\t %dMBytes\n", bip->bi_memsize, | |
106 | bip->bi_memsize / (1024 * 1000)); | |
107 | printk("bi_enetaddr %d\t %2.2x%2.2x%2.2x-%2.2x%2.2x%2.2x\n", 0, | |
108 | bip->bi_enetaddr[0], bip->bi_enetaddr[1], bip->bi_enetaddr[2], | |
109 | bip->bi_enetaddr[3], bip->bi_enetaddr[4], bip->bi_enetaddr[5]); | |
110 | ||
111 | printk("bi_intfreq\t 0x%8.8x\t clock:\t %dMhz\n", | |
112 | bip->bi_intfreq, bip->bi_intfreq / 1000000); | |
113 | ||
114 | printk("bi_busfreq\t 0x%8.8x\t plb bus clock:\t %dMHz\n", | |
115 | bip->bi_busfreq, bip->bi_busfreq / 1000000); | |
116 | printk("bi_tbfreq\t 0x%8.8x\t TB freq:\t %dMHz\n", | |
117 | bip->bi_tbfreq, bip->bi_tbfreq / 1000000); | |
118 | ||
119 | printk("\n"); | |
120 | #endif | |
121 | ||
122 | /* Identify the system */ | |
123 | printk(KERN_INFO "IBM Redwood6 (STBx25XX) Platform\n"); | |
124 | printk(KERN_INFO | |
125 | "Port by MontaVista Software, Inc. (source@mvista.com)\n"); | |
126 | ||
127 | device_initcall(redwood6_platform_add_devices); | |
128 | } | |
129 | ||
130 | void __init | |
131 | redwood6_map_io(void) | |
132 | { | |
133 | int i; | |
134 | ||
135 | ppc4xx_map_io(); | |
136 | for (i = 0; i < 16; i++) { | |
137 | unsigned long v, p; | |
138 | ||
139 | /* 0x400x0000 -> 0xe00x0000 */ | |
140 | p = 0x40000000 | (i << 16); | |
141 | v = STBx25xx_IO_BASE | (i << 16); | |
142 | ||
143 | io_block_mapping(v, p, PAGE_SIZE, | |
144 | _PAGE_NO_CACHE | pgprot_val(PAGE_KERNEL) | | |
145 | _PAGE_GUARDED); | |
146 | } | |
147 | } | |
148 | ||
149 | void __init | |
150 | platform_init(unsigned long r3, unsigned long r4, unsigned long r5, | |
151 | unsigned long r6, unsigned long r7) | |
152 | { | |
153 | ppc4xx_init(r3, r4, r5, r6, r7); | |
154 | ||
155 | ppc_md.setup_arch = redwood6_setup_arch; | |
156 | ppc_md.setup_io_mappings = redwood6_map_io; | |
157 | } |