2 * Copyright STMicroelectronics, 2007.
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.
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.
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
19 #include <linux/types.h>
20 #include <linux/init.h>
21 #include <linux/device.h>
22 #include <linux/amba/bus.h>
23 #include <linux/platform_device.h>
24 #include <linux/gpio.h>
26 #include <mach/hardware.h>
27 #include <mach/irqs.h>
28 #include <asm/mach/map.h>
29 #include <asm/hardware/vic.h>
31 #include <asm/cacheflush.h>
32 #include <asm/hardware/cache-l2x0.h>
36 #define __MEM_4K_RESOURCE(x) \
37 .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
39 /* The 8815 has 4 GPIO blocks, let's register them immediately */
41 #define GPIO_RESOURCE(block) \
43 .start = NOMADIK_GPIO##block##_BASE, \
44 .end = NOMADIK_GPIO##block##_BASE + SZ_4K - 1, \
45 .flags = IORESOURCE_MEM, \
48 .start = IRQ_GPIO##block, \
49 .end = IRQ_GPIO##block, \
50 .flags = IORESOURCE_IRQ, \
53 #define GPIO_DEVICE(block) \
58 .resource = &cpu8815_gpio_resources[block * 2], \
60 .platform_data = &cpu8815_gpio[block], \
64 static struct nmk_gpio_platform_data cpu8815_gpio
[] = {
68 .first_irq
= NOMADIK_GPIO_TO_IRQ(0),
72 .first_irq
= NOMADIK_GPIO_TO_IRQ(32),
76 .first_irq
= NOMADIK_GPIO_TO_IRQ(64),
78 .name
= "GPIO-96-127", /* 124..127 not routed to pin */
80 .first_irq
= NOMADIK_GPIO_TO_IRQ(96),
84 static struct resource cpu8815_gpio_resources
[] = {
91 static struct platform_device cpu8815_platform_gpio
[] = {
98 static struct amba_device cpu8815_amba_rng
= {
102 __MEM_4K_RESOURCE(NOMADIK_RNG_BASE
),
105 static struct platform_device
*platform_devs
[] __initdata
= {
106 cpu8815_platform_gpio
+ 0,
107 cpu8815_platform_gpio
+ 1,
108 cpu8815_platform_gpio
+ 2,
109 cpu8815_platform_gpio
+ 3,
112 static struct amba_device
*amba_devs
[] __initdata
= {
116 static int __init
cpu8815_init(void)
120 platform_add_devices(platform_devs
, ARRAY_SIZE(platform_devs
));
121 for (i
= 0; i
< ARRAY_SIZE(amba_devs
); i
++)
122 amba_device_register(amba_devs
[i
], &iomem_resource
);
125 arch_initcall(cpu8815_init
);
127 /* All SoC devices live in the same area (see hardware.h) */
128 static struct map_desc nomadik_io_desc
[] __initdata
= {
130 .virtual = NOMADIK_IO_VIRTUAL
,
131 .pfn
= __phys_to_pfn(NOMADIK_IO_PHYSICAL
),
132 .length
= NOMADIK_IO_SIZE
,
135 /* static ram and secured ram may be added later */
138 void __init
cpu8815_map_io(void)
140 iotable_init(nomadik_io_desc
, ARRAY_SIZE(nomadik_io_desc
));
143 void __init
cpu8815_init_irq(void)
145 /* This modified VIC cell has two register blocks, at 0 and 0x20 */
146 vic_init(io_p2v(NOMADIK_IC_BASE
+ 0x00), IRQ_VIC_START
+ 0, ~0, 0);
147 vic_init(io_p2v(NOMADIK_IC_BASE
+ 0x20), IRQ_VIC_START
+ 32, ~0, 0);
150 * Init clocks here so that they are available for system timer
157 * This function is called from the board init ("init_machine").
159 void __init
cpu8815_platform_init(void)
161 #ifdef CONFIG_CACHE_L2X0
162 /* At full speed latency must be >=2, so 0x249 in low bits */
163 l2x0_init(io_p2v(NOMADIK_L2CC_BASE
), 0x00730249, 0xfe000fff);