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/mach-au1x00/au1000.h>
33 #include <asm/mach-au1x00/gpio-au1000.h>
36 const char *get_system_type(void)
41 void __init prom_init(void)
43 unsigned char *memsize_str;
44 unsigned long memsize;
47 prom_argv = (char **)fw_arg1;
48 prom_envp = (char **)fw_arg2;
52 memsize_str = prom_getenv("memsize");
53 if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
56 add_memory_region(0, memsize, BOOT_MEM_RAM);
59 void prom_putchar(unsigned char c)
61 alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
64 static void xxs1500_reset(char *c)
66 /* Jump to the reset vector */
67 __asm__ __volatile__("jr\t%0" : : "r"(0xbfc00000));
70 static void xxs1500_power_off(void)
79 void __init board_setup(void)
83 pm_power_off = xxs1500_power_off;
84 _machine_halt = xxs1500_power_off;
85 _machine_restart = xxs1500_reset;
87 alchemy_gpio1_input_enable();
88 alchemy_gpio2_enable();
90 /* Set multiple use pins (UART3/GPIO) to UART (it's used as UART too) */
91 pin_func = alchemy_rdsys(AU1000_SYS_PINFUNC) & ~SYS_PF_UR3;
92 pin_func |= SYS_PF_UR3;
93 alchemy_wrsys(pin_func, AU1000_SYS_PINFUNC);
96 alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
97 /* Enable DTR (MCR bit 0) = USB power up */
98 __raw_writel(1, (void __iomem *)KSEG1ADDR(AU1000_UART3_PHYS_ADDR + 0x18));
102 /******************************************************************************/
104 static struct resource xxs1500_pcmcia_res[] = {
107 .flags = IORESOURCE_MEM,
108 .start = AU1000_PCMCIA_IO_PHYS_ADDR,
109 .end = AU1000_PCMCIA_IO_PHYS_ADDR + 0x000400000 - 1,
112 .name = "pcmcia-attr",
113 .flags = IORESOURCE_MEM,
114 .start = AU1000_PCMCIA_ATTR_PHYS_ADDR,
115 .end = AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
118 .name = "pcmcia-mem",
119 .flags = IORESOURCE_MEM,
120 .start = AU1000_PCMCIA_MEM_PHYS_ADDR,
121 .end = AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1,
125 static struct platform_device xxs1500_pcmcia_dev = {
126 .name = "xxs1500_pcmcia",
128 .num_resources = ARRAY_SIZE(xxs1500_pcmcia_res),
129 .resource = xxs1500_pcmcia_res,
132 static struct platform_device *xxs1500_devs[] __initdata = {
136 static int __init xxs1500_dev_init(void)
138 irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_HIGH);
139 irq_set_irq_type(AU1500_GPIO201_INT, IRQ_TYPE_LEVEL_LOW);
140 irq_set_irq_type(AU1500_GPIO202_INT, IRQ_TYPE_LEVEL_LOW);
141 irq_set_irq_type(AU1500_GPIO203_INT, IRQ_TYPE_LEVEL_LOW);
142 irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
143 irq_set_irq_type(AU1500_GPIO207_INT, IRQ_TYPE_LEVEL_LOW);
145 irq_set_irq_type(AU1500_GPIO0_INT, IRQ_TYPE_LEVEL_LOW);
146 irq_set_irq_type(AU1500_GPIO1_INT, IRQ_TYPE_LEVEL_LOW);
147 irq_set_irq_type(AU1500_GPIO2_INT, IRQ_TYPE_LEVEL_LOW);
148 irq_set_irq_type(AU1500_GPIO3_INT, IRQ_TYPE_LEVEL_LOW);
149 irq_set_irq_type(AU1500_GPIO4_INT, IRQ_TYPE_LEVEL_LOW); /* CF irq */
150 irq_set_irq_type(AU1500_GPIO5_INT, IRQ_TYPE_LEVEL_LOW);
152 return platform_add_devices(xxs1500_devs,
153 ARRAY_SIZE(xxs1500_devs));
155 device_initcall(xxs1500_dev_init);