MIPS: SB1250: Include correct header and fix a warning
[linux-2.6/linux-mips.git] / arch / mips / sibyte / swarm / platform.c
blob54847fe1e564d5ef2cdd985f27511f0dc7ba599a
1 #include <linux/err.h>
2 #include <linux/kernel.h>
3 #include <linux/init.h>
4 #include <linux/io.h>
5 #include <linux/platform_device.h>
6 #include <linux/ata_platform.h>
8 #include <asm/sibyte/board.h>
9 #include <asm/sibyte/sb1250_genbus.h>
10 #include <asm/sibyte/sb1250_regs.h>
12 #if defined(CONFIG_SIBYTE_SWARM) || defined(CONFIG_SIBYTE_LITTLESUR)
14 #define DRV_NAME "pata-swarm"
16 #define SWARM_IDE_SHIFT 5
17 #define SWARM_IDE_BASE 0x1f0
18 #define SWARM_IDE_CTRL 0x3f6
20 static struct resource swarm_pata_resource[] = {
22 .name = "Swarm GenBus IDE",
23 .flags = IORESOURCE_MEM,
24 }, {
25 .name = "Swarm GenBus IDE",
26 .flags = IORESOURCE_MEM,
27 }, {
28 .name = "Swarm GenBus IDE",
29 .flags = IORESOURCE_IRQ,
30 .start = K_INT_GB_IDE,
31 .end = K_INT_GB_IDE,
35 static struct pata_platform_info pata_platform_data = {
36 .ioport_shift = SWARM_IDE_SHIFT,
39 static struct platform_device swarm_pata_device = {
40 .name = "pata_platform",
41 .id = -1,
42 .resource = swarm_pata_resource,
43 .num_resources = ARRAY_SIZE(swarm_pata_resource),
44 .dev = {
45 .platform_data = &pata_platform_data,
46 .coherent_dma_mask = ~0, /* grumble */
50 static int __init swarm_pata_init(void)
52 u8 __iomem *base;
53 phys_t offset, size;
54 struct resource *r;
56 if (!SIBYTE_HAVE_IDE)
57 return -ENODEV;
59 base = ioremap(A_IO_EXT_BASE, 0x800);
60 offset = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_START_ADDR, IDE_CS));
61 size = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_MULT_SIZE, IDE_CS));
62 iounmap(base);
64 offset = G_IO_START_ADDR(offset) << S_IO_ADDRBASE;
65 size = (G_IO_MULT_SIZE(size) + 1) << S_IO_REGSIZE;
66 if (offset < A_PHYS_GENBUS || offset >= A_PHYS_GENBUS_END) {
67 pr_info(DRV_NAME ": PATA interface at GenBus disabled\n");
69 return -EBUSY;
72 pr_info(DRV_NAME ": PATA interface at GenBus slot %i\n", IDE_CS);
74 r = swarm_pata_resource;
75 r[0].start = offset + (SWARM_IDE_BASE << SWARM_IDE_SHIFT);
76 r[0].end = offset + ((SWARM_IDE_BASE + 8) << SWARM_IDE_SHIFT) - 1;
77 r[1].start = offset + (SWARM_IDE_CTRL << SWARM_IDE_SHIFT);
78 r[1].end = offset + ((SWARM_IDE_CTRL + 1) << SWARM_IDE_SHIFT) - 1;
80 return platform_device_register(&swarm_pata_device);
83 device_initcall(swarm_pata_init);
85 #endif /* defined(CONFIG_SIBYTE_SWARM) || defined(CONFIG_SIBYTE_LITTLESUR) */