diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-06 19:50:35 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-06 19:50:35 -0500 |
commit | 3c0cb7c31c206aaedb967e44b98442bbeb17a6c4 (patch) | |
tree | 3ecba45d7ffae4fba4a5aafaef4af5b0b1105bde /arch/arm/mach-ux500/devices-common.c | |
parent | f70f5b9dc74ca7d0a64c4ead3fb28da09dc1b234 (diff) | |
parent | 404a02cbd2ae8bf256a2fa1169bdfe86bb5ebb34 (diff) |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (416 commits)
ARM: DMA: add support for DMA debugging
ARM: PL011: add DMA burst threshold support for ST variants
ARM: PL011: Add support for transmit DMA
ARM: PL011: Ensure IRQs are disabled in UART interrupt handler
ARM: PL011: Separate hardware FIFO size from TTY FIFO size
ARM: PL011: Allow better handling of vendor data
ARM: PL011: Ensure error flags are clear at startup
ARM: PL011: include revision number in boot-time port printk
ARM: vexpress: add sched_clock() for Versatile Express
ARM i.MX53: Make MX53 EVK bootable
ARM i.MX53: Some bug fix about MX53 MSL code
ARM: 6607/1: sa1100: Update platform device registration
ARM: 6606/1: sa1100: Fix platform device registration
ARM i.MX51: rename IPU irqs
ARM i.MX51: Add ipu clock support
ARM: imx/mx27_3ds: Add PMIC support
ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn()
mx51: fix usb clock support
MX51: Add support for usb host 2
arch/arm/plat-mxc/ehci.c: fix errors/typos
...
Diffstat (limited to 'arch/arm/mach-ux500/devices-common.c')
-rw-r--r-- | arch/arm/mach-ux500/devices-common.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/devices-common.c b/arch/arm/mach-ux500/devices-common.c new file mode 100644 index 000000000000..fe69f5fac1bb --- /dev/null +++ b/arch/arm/mach-ux500/devices-common.c | |||
@@ -0,0 +1,145 @@ | |||
1 | /* | ||
2 | * Copyright (C) ST-Ericsson SA 2010 | ||
3 | * | ||
4 | * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson | ||
5 | * License terms: GNU General Public License (GPL), version 2. | ||
6 | */ | ||
7 | |||
8 | #include <linux/kernel.h> | ||
9 | #include <linux/dma-mapping.h> | ||
10 | #include <linux/err.h> | ||
11 | #include <linux/irq.h> | ||
12 | #include <linux/slab.h> | ||
13 | #include <linux/platform_device.h> | ||
14 | #include <linux/amba/bus.h> | ||
15 | |||
16 | #include <plat/gpio.h> | ||
17 | |||
18 | #include <mach/hardware.h> | ||
19 | |||
20 | #include "devices-common.h" | ||
21 | |||
22 | struct amba_device * | ||
23 | dbx500_add_amba_device(const char *name, resource_size_t base, | ||
24 | int irq, void *pdata, unsigned int periphid) | ||
25 | { | ||
26 | struct amba_device *dev; | ||
27 | int ret; | ||
28 | |||
29 | dev = kzalloc(sizeof *dev, GFP_KERNEL); | ||
30 | if (!dev) | ||
31 | return ERR_PTR(-ENOMEM); | ||
32 | |||
33 | dev->dev.init_name = name; | ||
34 | |||
35 | dev->res.start = base; | ||
36 | dev->res.end = base + SZ_4K - 1; | ||
37 | dev->res.flags = IORESOURCE_MEM; | ||
38 | |||
39 | dev->dma_mask = DMA_BIT_MASK(32); | ||
40 | dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); | ||
41 | |||
42 | dev->irq[0] = irq; | ||
43 | dev->irq[1] = NO_IRQ; | ||
44 | |||
45 | dev->periphid = periphid; | ||
46 | |||
47 | dev->dev.platform_data = pdata; | ||
48 | |||
49 | ret = amba_device_register(dev, &iomem_resource); | ||
50 | if (ret) { | ||
51 | kfree(dev); | ||
52 | return ERR_PTR(ret); | ||
53 | } | ||
54 | |||
55 | return dev; | ||
56 | } | ||
57 | |||
58 | static struct platform_device * | ||
59 | dbx500_add_platform_device(const char *name, int id, void *pdata, | ||
60 | struct resource *res, int resnum) | ||
61 | { | ||
62 | struct platform_device *dev; | ||
63 | int ret; | ||
64 | |||
65 | dev = platform_device_alloc(name, id); | ||
66 | if (!dev) | ||
67 | return ERR_PTR(-ENOMEM); | ||
68 | |||
69 | dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); | ||
70 | dev->dev.dma_mask = &dev->dev.coherent_dma_mask; | ||
71 | |||
72 | ret = platform_device_add_resources(dev, res, resnum); | ||
73 | if (ret) | ||
74 | goto out_free; | ||
75 | |||
76 | dev->dev.platform_data = pdata; | ||
77 | |||
78 | ret = platform_device_add(dev); | ||
79 | if (ret) | ||
80 | goto out_free; | ||
81 | |||
82 | return dev; | ||
83 | |||
84 | out_free: | ||
85 | platform_device_put(dev); | ||
86 | return ERR_PTR(ret); | ||
87 | } | ||
88 | |||
89 | struct platform_device * | ||
90 | dbx500_add_platform_device_4k1irq(const char *name, int id, | ||
91 | resource_size_t base, | ||
92 | int irq, void *pdata) | ||
93 | { | ||
94 | struct resource resources[] = { | ||
95 | [0] = { | ||
96 | .start = base, | ||
97 | .end = base + SZ_4K - 1, | ||
98 | .flags = IORESOURCE_MEM, | ||
99 | }, | ||
100 | [1] = { | ||
101 | .start = irq, | ||
102 | .end = irq, | ||
103 | .flags = IORESOURCE_IRQ, | ||
104 | } | ||
105 | }; | ||
106 | |||
107 | return dbx500_add_platform_device(name, id, pdata, resources, | ||
108 | ARRAY_SIZE(resources)); | ||
109 | } | ||
110 | |||
111 | static struct platform_device * | ||
112 | dbx500_add_gpio(int id, resource_size_t addr, int irq, | ||
113 | struct nmk_gpio_platform_data *pdata) | ||
114 | { | ||
115 | struct resource resources[] = { | ||
116 | { | ||
117 | .start = addr, | ||
118 | .end = addr + 127, | ||
119 | .flags = IORESOURCE_MEM, | ||
120 | }, | ||
121 | { | ||
122 | .start = irq, | ||
123 | .end = irq, | ||
124 | .flags = IORESOURCE_IRQ, | ||
125 | } | ||
126 | }; | ||
127 | |||
128 | return platform_device_register_resndata(NULL, "gpio", id, | ||
129 | resources, ARRAY_SIZE(resources), | ||
130 | pdata, sizeof(*pdata)); | ||
131 | } | ||
132 | |||
133 | void dbx500_add_gpios(resource_size_t *base, int num, int irq, | ||
134 | struct nmk_gpio_platform_data *pdata) | ||
135 | { | ||
136 | int first = 0; | ||
137 | int i; | ||
138 | |||
139 | for (i = 0; i < num; i++, first += 32, irq++) { | ||
140 | pdata->first_gpio = first; | ||
141 | pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first); | ||
142 | |||
143 | dbx500_add_gpio(i, base[i], irq, pdata); | ||
144 | } | ||
145 | } | ||