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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-14 16:42:43 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-14 16:42:43 -0400
commit2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc (patch)
treee35a625496acc6ac852846d40b8851186b9d1ac4 /arch/arm/mach-w90x900/mfp-w90p910.c
parent44b7532b8b464f606053562400719c9c21276037 (diff)
parentce53895a5d24e0ee19fb92f56c17323fb4c9ab27 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits) MAINTAINERS: EB110ATX is not ebsa110 MAINTAINERS: update Eric Miao's email address and status fb: add support of LCD display controller on pxa168/910 (base layer) [ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN [ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines [ARM] 5544/1: Trust PrimeCell resource sizes [ARM] pxa/sharpsl_pm: cleanup of gpio-related code. [ARM] pxa/sharpsl_pm: drop set_irq_type calls [ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one [ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific [ARM] sa1100: remove unused collie_pm.c [ARM] pxa: fix the conflicting non-static declarations of global_gpios[] [ARM] 5550/1: Add default configure file for w90p910 platform [ARM] 5549/1: Add clock api for w90p910 platform. [ARM] 5548/1: Add gpio api for w90p910 platform [ARM] 5551/1: Add multi-function pin api for w90p910 platform. [ARM] Make ARM_VIC_NR depend on ARM_VIC [ARM] 5546/1: ARM PL022 SSP/SPI driver v3 ARM: OMAP4: SMP: Update defconfig for OMAP4430 ARM: OMAP4: SMP: Enable SMP support for OMAP4430 ...
Diffstat (limited to 'arch/arm/mach-w90x900/mfp-w90p910.c')
-rw-r--r--arch/arm/mach-w90x900/mfp-w90p910.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/arch/arm/mach-w90x900/mfp-w90p910.c b/arch/arm/mach-w90x900/mfp-w90p910.c
new file mode 100644
index 000000000000..a3520fefb5e7
--- /dev/null
+++ b/arch/arm/mach-w90x900/mfp-w90p910.c
@@ -0,0 +1,116 @@
1/*
2 * linux/arch/arm/mach-w90x900/mfp-w90p910.c
3 *
4 * Copyright (c) 2008 Nuvoton technology corporation
5 *
6 * Wan ZongShun <mcuos.com@gmail.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation;version 2 of the License.
11 */
12
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/device.h>
16#include <linux/list.h>
17#include <linux/errno.h>
18#include <linux/err.h>
19#include <linux/string.h>
20#include <linux/clk.h>
21#include <linux/mutex.h>
22#include <linux/io.h>
23
24#include <mach/hardware.h>
25
26#define REG_MFSEL (W90X900_VA_GCR + 0xC)
27
28#define GPSELF (0x01 << 1)
29
30#define GPSELC (0x03 << 2)
31#define ENKPI (0x02 << 2)
32#define ENNAND (0x01 << 2)
33
34#define GPSELEI0 (0x01 << 26)
35#define GPSELEI1 (0x01 << 27)
36
37static DECLARE_MUTEX(mfp_sem);
38
39void mfp_set_groupf(struct device *dev)
40{
41 unsigned long mfpen;
42 const char *dev_id;
43
44 BUG_ON(!dev);
45
46 down(&mfp_sem);
47
48 dev_id = dev_name(dev);
49
50 mfpen = __raw_readl(REG_MFSEL);
51
52 if (strcmp(dev_id, "w90p910-emc") == 0)
53 mfpen |= GPSELF;/*enable mac*/
54 else
55 mfpen &= ~GPSELF;/*GPIOF[9:0]*/
56
57 __raw_writel(mfpen, REG_MFSEL);
58
59 up(&mfp_sem);
60}
61EXPORT_SYMBOL(mfp_set_groupf);
62
63void mfp_set_groupc(struct device *dev)
64{
65 unsigned long mfpen;
66 const char *dev_id;
67
68 BUG_ON(!dev);
69
70 down(&mfp_sem);
71
72 dev_id = dev_name(dev);
73
74 mfpen = __raw_readl(REG_MFSEL);
75
76 if (strcmp(dev_id, "w90p910-lcd") == 0)
77 mfpen |= GPSELC;/*enable lcd*/
78 else if (strcmp(dev_id, "w90p910-kpi") == 0) {
79 mfpen &= (~GPSELC);/*enable kpi*/
80 mfpen |= ENKPI;
81 } else if (strcmp(dev_id, "w90p910-nand") == 0) {
82 mfpen &= (~GPSELC);/*enable nand*/
83 mfpen |= ENNAND;
84 } else
85 mfpen &= (~GPSELC);/*GPIOC[14:0]*/
86
87 __raw_writel(mfpen, REG_MFSEL);
88
89 up(&mfp_sem);
90}
91EXPORT_SYMBOL(mfp_set_groupc);
92
93void mfp_set_groupi(struct device *dev, int gpio)
94{
95 unsigned long mfpen;
96 const char *dev_id;
97
98 BUG_ON(!dev);
99
100 down(&mfp_sem);
101
102 dev_id = dev_name(dev);
103
104 mfpen = __raw_readl(REG_MFSEL);
105
106 if (strcmp(dev_id, "w90p910-wdog") == 0)
107 mfpen |= GPSELEI1;/*enable wdog*/
108 else if (strcmp(dev_id, "w90p910-atapi") == 0)
109 mfpen |= GPSELEI0;/*enable atapi*/
110
111 __raw_writel(mfpen, REG_MFSEL);
112
113 up(&mfp_sem);
114}
115EXPORT_SYMBOL(mfp_set_groupi);
116