diff options
Diffstat (limited to 'arch/arm/mach-nomadik/cpu-8815.c')
-rw-r--r-- | arch/arm/mach-nomadik/cpu-8815.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c new file mode 100644 index 000000000000..f93c59634191 --- /dev/null +++ b/arch/arm/mach-nomadik/cpu-8815.c | |||
@@ -0,0 +1,139 @@ | |||
1 | /* | ||
2 | * Copyright STMicroelectronics, 2007. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License as published by | ||
6 | * the Free Software Foundation; either version 2 of the License, or | ||
7 | * (at your option) any later version. | ||
8 | * | ||
9 | * This program is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | * GNU General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License | ||
15 | * along with this program; if not, write to the Free Software | ||
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
17 | */ | ||
18 | |||
19 | #include <linux/types.h> | ||
20 | #include <linux/init.h> | ||
21 | #include <linux/device.h> | ||
22 | #include <linux/amba/bus.h> | ||
23 | #include <linux/gpio.h> | ||
24 | |||
25 | #include <mach/hardware.h> | ||
26 | #include <mach/irqs.h> | ||
27 | #include <asm/mach/map.h> | ||
28 | #include <asm/hardware/vic.h> | ||
29 | |||
30 | #include <asm/cacheflush.h> | ||
31 | #include <asm/hardware/cache-l2x0.h> | ||
32 | |||
33 | /* The 8815 has 4 GPIO blocks, let's register them immediately */ | ||
34 | static struct nmk_gpio_platform_data cpu8815_gpio[] = { | ||
35 | { | ||
36 | .name = "GPIO-0-31", | ||
37 | .first_gpio = 0, | ||
38 | .first_irq = NOMADIK_GPIO_TO_IRQ(0), | ||
39 | .parent_irq = IRQ_GPIO0, | ||
40 | }, { | ||
41 | .name = "GPIO-32-63", | ||
42 | .first_gpio = 32, | ||
43 | .first_irq = NOMADIK_GPIO_TO_IRQ(32), | ||
44 | .parent_irq = IRQ_GPIO1, | ||
45 | }, { | ||
46 | .name = "GPIO-64-95", | ||
47 | .first_gpio = 64, | ||
48 | .first_irq = NOMADIK_GPIO_TO_IRQ(64), | ||
49 | .parent_irq = IRQ_GPIO2, | ||
50 | }, { | ||
51 | .name = "GPIO-96-127", /* 124..127 not routed to pin */ | ||
52 | .first_gpio = 96, | ||
53 | .first_irq = NOMADIK_GPIO_TO_IRQ(96), | ||
54 | .parent_irq = IRQ_GPIO3, | ||
55 | } | ||
56 | }; | ||
57 | |||
58 | #define __MEM_4K_RESOURCE(x) \ | ||
59 | .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM} | ||
60 | |||
61 | static struct amba_device cpu8815_amba_gpio[] = { | ||
62 | { | ||
63 | .dev = { | ||
64 | .init_name = "gpio0", | ||
65 | .platform_data = cpu8815_gpio + 0, | ||
66 | }, | ||
67 | __MEM_4K_RESOURCE(NOMADIK_GPIO0_BASE), | ||
68 | }, { | ||
69 | .dev = { | ||
70 | .init_name = "gpio1", | ||
71 | .platform_data = cpu8815_gpio + 1, | ||
72 | }, | ||
73 | __MEM_4K_RESOURCE(NOMADIK_GPIO1_BASE), | ||
74 | }, { | ||
75 | .dev = { | ||
76 | .init_name = "gpio2", | ||
77 | .platform_data = cpu8815_gpio + 2, | ||
78 | }, | ||
79 | __MEM_4K_RESOURCE(NOMADIK_GPIO2_BASE), | ||
80 | }, { | ||
81 | .dev = { | ||
82 | .init_name = "gpio3", | ||
83 | .platform_data = cpu8815_gpio + 3, | ||
84 | }, | ||
85 | __MEM_4K_RESOURCE(NOMADIK_GPIO3_BASE), | ||
86 | }, | ||
87 | }; | ||
88 | |||
89 | static struct amba_device *amba_devs[] __initdata = { | ||
90 | cpu8815_amba_gpio + 0, | ||
91 | cpu8815_amba_gpio + 1, | ||
92 | cpu8815_amba_gpio + 2, | ||
93 | cpu8815_amba_gpio + 3, | ||
94 | }; | ||
95 | |||
96 | static int __init cpu8815_init(void) | ||
97 | { | ||
98 | int i; | ||
99 | |||
100 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) | ||
101 | amba_device_register(amba_devs[i], &iomem_resource); | ||
102 | return 0; | ||
103 | } | ||
104 | arch_initcall(cpu8815_init); | ||
105 | |||
106 | /* All SoC devices live in the same area (see hardware.h) */ | ||
107 | static struct map_desc nomadik_io_desc[] __initdata = { | ||
108 | { | ||
109 | .virtual = NOMADIK_IO_VIRTUAL, | ||
110 | .pfn = __phys_to_pfn(NOMADIK_IO_PHYSICAL), | ||
111 | .length = NOMADIK_IO_SIZE, | ||
112 | .type = MT_DEVICE, | ||
113 | } | ||
114 | /* static ram and secured ram may be added later */ | ||
115 | }; | ||
116 | |||
117 | void __init cpu8815_map_io(void) | ||
118 | { | ||
119 | iotable_init(nomadik_io_desc, ARRAY_SIZE(nomadik_io_desc)); | ||
120 | } | ||
121 | |||
122 | void __init cpu8815_init_irq(void) | ||
123 | { | ||
124 | /* This modified VIC cell has two register blocks, at 0 and 0x20 */ | ||
125 | vic_init(io_p2v(NOMADIK_IC_BASE + 0x00), IRQ_VIC_START + 0, ~0, 0); | ||
126 | vic_init(io_p2v(NOMADIK_IC_BASE + 0x20), IRQ_VIC_START + 32, ~0, 0); | ||
127 | } | ||
128 | |||
129 | /* | ||
130 | * This function is called from the board init ("init_machine"). | ||
131 | */ | ||
132 | void __init cpu8815_platform_init(void) | ||
133 | { | ||
134 | #ifdef CONFIG_CACHE_L2X0 | ||
135 | /* At full speed latency must be >=2, so 0x249 in low bits */ | ||
136 | l2x0_init(io_p2v(NOMADIK_L2CC_BASE), 0x00730249, 0xfe000fff); | ||
137 | #endif | ||
138 | return; | ||
139 | } | ||