5 #include <linux/init.h>
6 #include <linux/mtd/mtd.h>
7 #include <linux/mtd/map.h>
8 #include <linux/mtd/physmap.h>
9 #include <linux/slab.h>
10 #include <linux/platform_device.h>
13 #include <asm/bootinfo.h>
14 #include <asm/reboot.h>
15 #include <asm/mach-au1x00/au1000.h>
16 #include <asm/mach-db1x00/bcsr.h>
20 void __init prom_init(void)
22 unsigned char *memsize_str;
23 unsigned long memsize;
25 prom_argc = (int)fw_arg0;
26 prom_argv = (char **)fw_arg1;
27 prom_envp = (char **)fw_arg2;
30 memsize_str = prom_getenv("memsize");
31 if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
32 memsize = 64 << 20; /* all devboards have at least 64MB RAM */
34 add_memory_region(0, memsize, BOOT_MEM_RAM);
37 void prom_putchar(unsigned char c)
39 if (alchemy_get_cputype() == ALCHEMY_CPU_AU1300)
40 alchemy_uart_putchar(AU1300_UART2_PHYS_ADDR, c);
42 alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
46 static struct platform_device db1x00_rtc_dev = {
52 static void db1x_power_off(void)
54 bcsr_write(BCSR_RESETS, 0);
55 bcsr_write(BCSR_SYSTEM, BCSR_SYSTEM_PWROFF | BCSR_SYSTEM_RESET);
58 static void db1x_reset(char *c)
60 bcsr_write(BCSR_RESETS, 0);
61 bcsr_write(BCSR_SYSTEM, 0);
64 static int __init db1x_late_setup(void)
67 pm_power_off = db1x_power_off;
69 _machine_halt = db1x_power_off;
70 if (!_machine_restart)
71 _machine_restart = db1x_reset;
73 platform_device_register(&db1x00_rtc_dev);
77 device_initcall(db1x_late_setup);
79 /* register a pcmcia socket */
80 int __init db1x_register_pcmcia_socket(phys_addr_t pcmcia_attr_start,
81 phys_addr_t pcmcia_attr_end,
82 phys_addr_t pcmcia_mem_start,
83 phys_addr_t pcmcia_mem_end,
84 phys_addr_t pcmcia_io_start,
85 phys_addr_t pcmcia_io_end,
94 struct platform_device *pd;
102 sr = kzalloc(sizeof(struct resource) * cnt, GFP_KERNEL);
106 pd = platform_device_alloc("db1xxx_pcmcia", id);
112 sr[0].name = "pcmcia-attr";
113 sr[0].flags = IORESOURCE_MEM;
114 sr[0].start = pcmcia_attr_start;
115 sr[0].end = pcmcia_attr_end;
117 sr[1].name = "pcmcia-mem";
118 sr[1].flags = IORESOURCE_MEM;
119 sr[1].start = pcmcia_mem_start;
120 sr[1].end = pcmcia_mem_end;
122 sr[2].name = "pcmcia-io";
123 sr[2].flags = IORESOURCE_MEM;
124 sr[2].start = pcmcia_io_start;
125 sr[2].end = pcmcia_io_end;
127 sr[3].name = "insert";
128 sr[3].flags = IORESOURCE_IRQ;
129 sr[3].start = sr[3].end = cd_irq;
132 sr[4].flags = IORESOURCE_IRQ;
133 sr[4].start = sr[4].end = card_irq;
137 sr[i].name = "stschg";
138 sr[i].flags = IORESOURCE_IRQ;
139 sr[i].start = sr[i].end = stschg_irq;
143 sr[i].name = "eject";
144 sr[i].flags = IORESOURCE_IRQ;
145 sr[i].start = sr[i].end = eject_irq;
149 pd->num_resources = cnt;
151 ret = platform_device_add(pd);
155 platform_device_put(pd);
161 #define YAMON_SIZE 0x00100000
162 #define YAMON_ENV_SIZE 0x00040000
164 int __init db1x_register_norflash(unsigned long size, int width,
167 struct physmap_flash_data *pfd;
168 struct platform_device *pd;
169 struct mtd_partition *parts;
170 struct resource *res;
173 if (size < (8 * 1024 * 1024))
177 parts = kzalloc(sizeof(struct mtd_partition) * 5, GFP_KERNEL);
181 res = kzalloc(sizeof(struct resource), GFP_KERNEL);
185 pfd = kzalloc(sizeof(struct physmap_flash_data), GFP_KERNEL);
189 pd = platform_device_alloc("physmap-flash", 0);
193 /* NOR flash ends at 0x20000000, regardless of size */
194 res->start = 0x20000000 - size;
195 res->end = 0x20000000 - 1;
196 res->flags = IORESOURCE_MEM;
198 /* partition setup. Most Develboards have a switch which allows
199 * to swap the physical locations of the 2 NOR flash banks.
205 parts[i].name = "User FS";
206 parts[i].size = size / 2;
210 parts[i].offset = MTDPART_OFS_APPEND;
211 parts[i].name = "User FS 2";
212 parts[i].size = (size / 2) - (0x20000000 - 0x1fc00000);
215 parts[i].offset = MTDPART_OFS_APPEND;
216 parts[i].name = "YAMON";
217 parts[i].size = YAMON_SIZE;
218 parts[i].mask_flags = MTD_WRITEABLE;
221 parts[i].offset = MTDPART_OFS_APPEND;
222 parts[i].name = "raw kernel";
223 parts[i].size = 0x00400000 - YAMON_SIZE - YAMON_ENV_SIZE;
226 parts[i].offset = MTDPART_OFS_APPEND;
227 parts[i].name = "YAMON Env";
228 parts[i].size = YAMON_ENV_SIZE;
229 parts[i].mask_flags = MTD_WRITEABLE;
233 parts[i].offset = MTDPART_OFS_APPEND;
234 parts[i].name = "User FS";
235 parts[i].size = size / 2;
243 pd->dev.platform_data = pfd;
245 pd->num_resources = 1;
247 ret = platform_device_add(pd);
251 platform_device_put(pd);