2 * BRIEF MODULE DESCRIPTION
3 * MyCable XXS1500 board support
5 * Copyright 2003, 2008 MontaVista Software Inc.
6 * Author: MontaVista Software, Inc. <source@mvista.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #include <linux/kernel.h>
24 #include <linux/init.h>
25 #include <linux/interrupt.h>
26 #include <linux/platform_device.h>
27 #include <linux/gpio.h>
28 #include <linux/delay.h>
30 #include <asm/bootinfo.h>
31 #include <asm/reboot.h>
32 #include <asm/setup.h>
33 #include <asm/mach-au1x00/au1000.h>
34 #include <asm/mach-au1x00/gpio-au1000.h>
37 const char *get_system_type(void)
42 void __init prom_init(void)
44 unsigned char *memsize_str;
45 unsigned long memsize;
48 prom_argv = (char **)fw_arg1;
49 prom_envp = (char **)fw_arg2;
53 memsize_str = prom_getenv("memsize");
54 if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
57 add_memory_region(0, memsize, BOOT_MEM_RAM);
60 void prom_putchar(char c)
62 alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
65 static void xxs1500_reset(char *c)
67 /* Jump to the reset vector */
68 __asm__ __volatile__("jr\t%0" : : "r"(0xbfc00000));
71 static void xxs1500_power_off(void)
80 void __init board_setup(void)
84 pm_power_off = xxs1500_power_off;
85 _machine_halt = xxs1500_power_off;
86 _machine_restart = xxs1500_reset;
88 alchemy_gpio1_input_enable();
89 alchemy_gpio2_enable();
91 /* Set multiple use pins (UART3/GPIO) to UART (it's used as UART too) */
92 pin_func = alchemy_rdsys(AU1000_SYS_PINFUNC) & ~SYS_PF_UR3;
93 pin_func |= SYS_PF_UR3;
94 alchemy_wrsys(pin_func, AU1000_SYS_PINFUNC);
97 alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
98 /* Enable DTR (MCR bit 0) = USB power up */
99 __raw_writel(1, (void __iomem *)KSEG1ADDR(AU1000_UART3_PHYS_ADDR + 0x18));
103 /******************************************************************************/
105 static struct resource xxs1500_pcmcia_res[] = {
108 .flags = IORESOURCE_MEM,
109 .start = AU1000_PCMCIA_IO_PHYS_ADDR,
110 .end = AU1000_PCMCIA_IO_PHYS_ADDR + 0x000400000 - 1,
113 .name = "pcmcia-attr",
114 .flags = IORESOURCE_MEM,
115 .start = AU1000_PCMCIA_ATTR_PHYS_ADDR,
116 .end = AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
119 .name = "pcmcia-mem",
120 .flags = IORESOURCE_MEM,
121 .start = AU1000_PCMCIA_MEM_PHYS_ADDR,
122 .end = AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1,
126 static struct platform_device xxs1500_pcmcia_dev = {
127 .name = "xxs1500_pcmcia",
129 .num_resources = ARRAY_SIZE(xxs1500_pcmcia_res),
130 .resource = xxs1500_pcmcia_res,
133 static struct platform_device *xxs1500_devs[] __initdata = {
137 static int __init xxs1500_dev_init(void)
139 irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_HIGH);
140 irq_set_irq_type(AU1500_GPIO201_INT, IRQ_TYPE_LEVEL_LOW);
141 irq_set_irq_type(AU1500_GPIO202_INT, IRQ_TYPE_LEVEL_LOW);
142 irq_set_irq_type(AU1500_GPIO203_INT, IRQ_TYPE_LEVEL_LOW);
143 irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
144 irq_set_irq_type(AU1500_GPIO207_INT, IRQ_TYPE_LEVEL_LOW);
146 irq_set_irq_type(AU1500_GPIO0_INT, IRQ_TYPE_LEVEL_LOW);
147 irq_set_irq_type(AU1500_GPIO1_INT, IRQ_TYPE_LEVEL_LOW);
148 irq_set_irq_type(AU1500_GPIO2_INT, IRQ_TYPE_LEVEL_LOW);
149 irq_set_irq_type(AU1500_GPIO3_INT, IRQ_TYPE_LEVEL_LOW);
150 irq_set_irq_type(AU1500_GPIO4_INT, IRQ_TYPE_LEVEL_LOW); /* CF irq */
151 irq_set_irq_type(AU1500_GPIO5_INT, IRQ_TYPE_LEVEL_LOW);
153 return platform_add_devices(xxs1500_devs,
154 ARRAY_SIZE(xxs1500_devs));
156 device_initcall(xxs1500_dev_init);