sibyte: add 3.3 support
[openwrt/svn-archive/archive.git] / target / linux / sibyte / patches-3.3 / 101-rhone_physmap.patch
1 --- a/arch/mips/sibyte/swarm/platform.c
2 +++ b/arch/mips/sibyte/swarm/platform.c
3 @@ -5,6 +5,7 @@
4 #include <linux/platform_device.h>
5 #include <linux/ata_platform.h>
6
7 +#include <asm/addrspace.h>
8 #include <asm/sibyte/board.h>
9 #include <asm/sibyte/sb1250_genbus.h>
10 #include <asm/sibyte/sb1250_regs.h>
11 @@ -137,3 +138,71 @@ static int __init sb1250_device_init(voi
12 return ret;
13 }
14 device_initcall(sb1250_device_init);
15 +
16 +#ifdef CONFIG_SIBYTE_RHONE
17 +
18 +#include <linux/mtd/partitions.h>
19 +#include <linux/mtd/physmap.h>
20 +
21 +/* The board has 16MB flash but CFE sets up only 2MB */
22 +#define PHYS_TO_K1(a) CKSEG1ADDR(a)
23 +#define BOOTROM_SIZE 0x100
24 +
25 +static void fixup_cs0_size(void)
26 +{
27 + SBWRITECSR(((A_IO_EXT_CS_BASE(0)) + R_IO_EXT_MULT_SIZE), BOOTROM_SIZE);
28 +}
29 +
30 +static struct mtd_partition flash_parts[] = {
31 + {
32 + .name = "cfe",
33 + .offset = 0x00000000,
34 + .size = 0x00200000,
35 + .mask_flags = MTD_WRITEABLE,
36 + },
37 + {
38 + .name = "os",
39 + .offset = 0x00200000,
40 + .size = 0x00d00000,
41 + },
42 + {
43 + .name = "environment",
44 + .offset = 0x00f00000,
45 + .size = 0x00100000,
46 + .mask_flags = MTD_WRITEABLE,
47 + },
48 +};
49 +
50 +static struct physmap_flash_data flash_data = {
51 + .width = 1,
52 + .nr_parts = ARRAY_SIZE(flash_parts),
53 + .parts = flash_parts,
54 +};
55 +
56 +static struct resource flash_resource = {
57 + .start = 0x1fc00000,
58 + .end = 0x20bfffff,
59 + .flags = IORESOURCE_MEM,
60 +};
61 +
62 +static struct platform_device flash_device = {
63 + .name = "physmap-flash",
64 + .id = 0,
65 + .resource = &flash_resource,
66 + .num_resources = 1,
67 + .dev = {
68 + .platform_data = &flash_data,
69 + },
70 +};
71 +
72 +static int __init flash_setup(void)
73 +{
74 + fixup_cs0_size();
75 + platform_device_register(&flash_device);
76 +
77 + return 0;
78 +};
79 +
80 +device_initcall(flash_setup);
81 +
82 +#endif /* CONFIG_SIBYTE_RHONE */