diff options
Diffstat (limited to 'arch/arm/mach-gemini/devices.c')
-rw-r--r-- | arch/arm/mach-gemini/devices.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/arch/arm/mach-gemini/devices.c b/arch/arm/mach-gemini/devices.c new file mode 100644 index 000000000000..6b525253d027 --- /dev/null +++ b/arch/arm/mach-gemini/devices.c | |||
@@ -0,0 +1,92 @@ | |||
1 | /* | ||
2 | * Common devices definition for Gemini | ||
3 | * | ||
4 | * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | */ | ||
10 | #include <linux/kernel.h> | ||
11 | #include <linux/init.h> | ||
12 | #include <linux/io.h> | ||
13 | #include <linux/platform_device.h> | ||
14 | #include <linux/serial_8250.h> | ||
15 | #include <linux/mtd/physmap.h> | ||
16 | |||
17 | #include <mach/irqs.h> | ||
18 | #include <mach/hardware.h> | ||
19 | #include <mach/global_reg.h> | ||
20 | |||
21 | static struct plat_serial8250_port serial_platform_data[] = { | ||
22 | { | ||
23 | .membase = (void *)IO_ADDRESS(GEMINI_UART_BASE), | ||
24 | .mapbase = GEMINI_UART_BASE, | ||
25 | .irq = IRQ_UART, | ||
26 | .uartclk = UART_CLK, | ||
27 | .regshift = 2, | ||
28 | .iotype = UPIO_MEM, | ||
29 | .type = PORT_16550A, | ||
30 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_FIXED_TYPE, | ||
31 | }, | ||
32 | {}, | ||
33 | }; | ||
34 | |||
35 | static struct platform_device serial_device = { | ||
36 | .name = "serial8250", | ||
37 | .id = PLAT8250_DEV_PLATFORM, | ||
38 | .dev = { | ||
39 | .platform_data = serial_platform_data, | ||
40 | }, | ||
41 | }; | ||
42 | |||
43 | int platform_register_uart(void) | ||
44 | { | ||
45 | return platform_device_register(&serial_device); | ||
46 | } | ||
47 | |||
48 | static struct resource flash_resource = { | ||
49 | .start = GEMINI_FLASH_BASE, | ||
50 | .flags = IORESOURCE_MEM, | ||
51 | }; | ||
52 | |||
53 | static struct physmap_flash_data pflash_platform_data = {}; | ||
54 | |||
55 | static struct platform_device pflash_device = { | ||
56 | .name = "physmap-flash", | ||
57 | .id = 0, | ||
58 | .dev = { | ||
59 | .platform_data = &pflash_platform_data, | ||
60 | }, | ||
61 | .resource = &flash_resource, | ||
62 | .num_resources = 1, | ||
63 | }; | ||
64 | |||
65 | int platform_register_pflash(unsigned int size, struct mtd_partition *parts, | ||
66 | unsigned int nr_parts) | ||
67 | { | ||
68 | unsigned int reg; | ||
69 | |||
70 | reg = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_STATUS); | ||
71 | |||
72 | if ((reg & FLASH_TYPE_MASK) != FLASH_TYPE_PARALLEL) | ||
73 | return -ENXIO; | ||
74 | |||
75 | if (reg & FLASH_WIDTH_16BIT) | ||
76 | pflash_platform_data.width = 2; | ||
77 | else | ||
78 | pflash_platform_data.width = 1; | ||
79 | |||
80 | /* enable parallel flash pins and disable others */ | ||
81 | reg = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL); | ||
82 | reg &= ~PFLASH_PADS_DISABLE; | ||
83 | reg |= SFLASH_PADS_DISABLE | NAND_PADS_DISABLE; | ||
84 | __raw_writel(reg, IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL); | ||
85 | |||
86 | flash_resource.end = flash_resource.start + size - 1; | ||
87 | |||
88 | pflash_platform_data.parts = parts; | ||
89 | pflash_platform_data.nr_parts = nr_parts; | ||
90 | |||
91 | return platform_device_register(&pflash_device); | ||
92 | } | ||