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>
15 #include <asm/reboot.h>
16 #include <asm/mach-au1x00/au1000.h>
17 #include <asm/mach-db1x00/bcsr.h>
21 void __init prom_init(void)
23 unsigned char *memsize_str;
24 unsigned long memsize;
26 prom_argc = (int)fw_arg0;
27 prom_argv = (char **)fw_arg1;
28 prom_envp = (char **)fw_arg2;
31 memsize_str = prom_getenv("memsize");
32 if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
33 memsize = 64 << 20; /* all devboards have at least 64MB RAM */
35 add_memory_region(0, memsize, BOOT_MEM_RAM);
38 void prom_putchar(unsigned char c)
40 if (alchemy_get_cputype() == ALCHEMY_CPU_AU1300)
41 alchemy_uart_putchar(AU1300_UART2_PHYS_ADDR, c);
43 alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
47 static struct platform_device db1x00_rtc_dev = {
53 static void db1x_power_off(void)
55 bcsr_write(BCSR_RESETS, 0);
56 bcsr_write(BCSR_SYSTEM, BCSR_SYSTEM_PWROFF | BCSR_SYSTEM_RESET);
57 while (1) /* sit and spin */
61 static void db1x_reset(char *c)
63 bcsr_write(BCSR_RESETS, 0);
64 bcsr_write(BCSR_SYSTEM, 0);
67 static int __init db1x_late_setup(void)
70 pm_power_off = db1x_power_off;
72 _machine_halt = db1x_power_off;
73 if (!_machine_restart)
74 _machine_restart = db1x_reset;
76 platform_device_register(&db1x00_rtc_dev);
80 device_initcall(db1x_late_setup);
82 /* register a pcmcia socket */
83 int __init db1x_register_pcmcia_socket(phys_addr_t pcmcia_attr_start,
84 phys_addr_t pcmcia_attr_end,
85 phys_addr_t pcmcia_mem_start,
86 phys_addr_t pcmcia_mem_end,
87 phys_addr_t pcmcia_io_start,
88 phys_addr_t pcmcia_io_end,
97 struct platform_device *pd;
105 sr = kzalloc(sizeof(struct resource) * cnt, GFP_KERNEL);
109 pd = platform_device_alloc("db1xxx_pcmcia", id);
115 sr[0].name = "pcmcia-attr";
116 sr[0].flags = IORESOURCE_MEM;
117 sr[0].start = pcmcia_attr_start;
118 sr[0].end = pcmcia_attr_end;
120 sr[1].name = "pcmcia-mem";
121 sr[1].flags = IORESOURCE_MEM;
122 sr[1].start = pcmcia_mem_start;
123 sr[1].end = pcmcia_mem_end;
125 sr[2].name = "pcmcia-io";
126 sr[2].flags = IORESOURCE_MEM;
127 sr[2].start = pcmcia_io_start;
128 sr[2].end = pcmcia_io_end;
130 sr[3].name = "insert";
131 sr[3].flags = IORESOURCE_IRQ;
132 sr[3].start = sr[3].end = cd_irq;
135 sr[4].flags = IORESOURCE_IRQ;
136 sr[4].start = sr[4].end = card_irq;
140 sr[i].name = "stschg";
141 sr[i].flags = IORESOURCE_IRQ;
142 sr[i].start = sr[i].end = stschg_irq;
146 sr[i].name = "eject";
147 sr[i].flags = IORESOURCE_IRQ;
148 sr[i].start = sr[i].end = eject_irq;
152 pd->num_resources = cnt;
154 ret = platform_device_add(pd);
158 platform_device_put(pd);
164 #define YAMON_SIZE 0x00100000
165 #define YAMON_ENV_SIZE 0x00040000
167 int __init db1x_register_norflash(unsigned long size, int width,
170 struct physmap_flash_data *pfd;
171 struct platform_device *pd;
172 struct mtd_partition *parts;
173 struct resource *res;
176 if (size < (8 * 1024 * 1024))
180 parts = kzalloc(sizeof(struct mtd_partition) * 5, GFP_KERNEL);
184 res = kzalloc(sizeof(struct resource), GFP_KERNEL);
188 pfd = kzalloc(sizeof(struct physmap_flash_data), GFP_KERNEL);
192 pd = platform_device_alloc("physmap-flash", 0);
196 /* NOR flash ends at 0x20000000, regardless of size */
197 res->start = 0x20000000 - size;
198 res->end = 0x20000000 - 1;
199 res->flags = IORESOURCE_MEM;
201 /* partition setup. Most Develboards have a switch which allows
202 * to swap the physical locations of the 2 NOR flash banks.
208 parts[i].name = "User FS";
209 parts[i].size = size / 2;
213 parts[i].offset = MTDPART_OFS_APPEND;
214 parts[i].name = "User FS 2";
215 parts[i].size = (size / 2) - (0x20000000 - 0x1fc00000);
218 parts[i].offset = MTDPART_OFS_APPEND;
219 parts[i].name = "YAMON";
220 parts[i].size = YAMON_SIZE;
221 parts[i].mask_flags = MTD_WRITEABLE;
224 parts[i].offset = MTDPART_OFS_APPEND;
225 parts[i].name = "raw kernel";
226 parts[i].size = 0x00400000 - YAMON_SIZE - YAMON_ENV_SIZE;
229 parts[i].offset = MTDPART_OFS_APPEND;
230 parts[i].name = "YAMON Env";
231 parts[i].size = YAMON_ENV_SIZE;
232 parts[i].mask_flags = MTD_WRITEABLE;
236 parts[i].offset = MTDPART_OFS_APPEND;
237 parts[i].name = "User FS";
238 parts[i].size = size / 2;
246 pd->dev.platform_data = pfd;
248 pd->num_resources = 1;
250 ret = platform_device_add(pd);
254 platform_device_put(pd);