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Diffstat (limited to 'arch/arm/mach-ns9xxx/gpio-ns9360.c')
-rw-r--r--arch/arm/mach-ns9xxx/gpio-ns9360.c118
1 files changed, 0 insertions, 118 deletions
diff --git a/arch/arm/mach-ns9xxx/gpio-ns9360.c b/arch/arm/mach-ns9xxx/gpio-ns9360.c
deleted file mode 100644
index 377330c1b25..00000000000
--- a/arch/arm/mach-ns9xxx/gpio-ns9360.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * arch/arm/mach-ns9xxx/gpio-ns9360.c
- *
- * Copyright (C) 2006,2007 by Digi International Inc.
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
-#include <linux/bug.h>
-#include <linux/errno.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-
-#include <mach/regs-bbu.h>
-#include <mach/processor-ns9360.h>
-
-#include "gpio-ns9360.h"
-
-static inline int ns9360_valid_gpio(unsigned gpio)
-{
- return gpio <= 72;
-}
-
-static inline void __iomem *ns9360_gpio_get_gconfaddr(unsigned gpio)
-{
- if (gpio < 56)
- return BBU_GCONFb1(gpio / 8);
- else
- /*
- * this could be optimised away on
- * ns9750 only builds, but it isn't ...
- */
- return BBU_GCONFb2((gpio - 56) / 8);
-}
-
-static inline void __iomem *ns9360_gpio_get_gctrladdr(unsigned gpio)
-{
- if (gpio < 32)
- return BBU_GCTRL1;
- else if (gpio < 64)
- return BBU_GCTRL2;
- else
- /* this could be optimised away on ns9750 only builds */
- return BBU_GCTRL3;
-}
-
-static inline void __iomem *ns9360_gpio_get_gstataddr(unsigned gpio)
-{
- if (gpio < 32)
- return BBU_GSTAT1;
- else if (gpio < 64)
- return BBU_GSTAT2;
- else
- /* this could be optimised away on ns9750 only builds */
- return BBU_GSTAT3;
-}
-
-/*
- * each gpio can serve for 4 different purposes [0..3]. These are called
- * "functions" and passed in the parameter func. Functions 0-2 are always some
- * special things, function 3 is GPIO. If func == 3 dir specifies input or
- * output, and with inv you can enable an inverter (independent of func).
- */
-int __ns9360_gpio_configure(unsigned gpio, int dir, int inv, int func)
-{
- void __iomem *conf = ns9360_gpio_get_gconfaddr(gpio);
- u32 confval;
-
- confval = __raw_readl(conf);
- REGSETIM_IDX(confval, BBU_GCONFx, DIR, gpio & 7, dir);
- REGSETIM_IDX(confval, BBU_GCONFx, INV, gpio & 7, inv);
- REGSETIM_IDX(confval, BBU_GCONFx, FUNC, gpio & 7, func);
- __raw_writel(confval, conf);
-
- return 0;
-}
-
-int ns9360_gpio_configure(unsigned gpio, int inv, int func)
-{
- if (likely(ns9360_valid_gpio(gpio))) {
- if (func == 3) {
- printk(KERN_WARNING "use gpio_direction_input "
- "or gpio_direction_output\n");
- return -EINVAL;
- } else
- return __ns9360_gpio_configure(gpio, 0, inv, func);
- } else
- return -EINVAL;
-}
-EXPORT_SYMBOL(ns9360_gpio_configure);
-
-int ns9360_gpio_get_value(unsigned gpio)
-{
- void __iomem *stat = ns9360_gpio_get_gstataddr(gpio);
- int ret;
-
- ret = 1 & (__raw_readl(stat) >> (gpio & 31));
-
- return ret;
-}
-
-void ns9360_gpio_set_value(unsigned gpio, int value)
-{
- void __iomem *ctrl = ns9360_gpio_get_gctrladdr(gpio);
- u32 ctrlval;
-
- ctrlval = __raw_readl(ctrl);
-
- if (value)
- ctrlval |= 1 << (gpio & 31);
- else
- ctrlval &= ~(1 << (gpio & 31));
-
- __raw_writel(ctrlval, ctrl);
-}