target/linux/cns21xx/patches-2.6.37/102-cns21xx-gpiolib-support.patch

   1 --- a/arch/arm/Kconfig
   2 +++ b/arch/arm/Kconfig
   3 @@ -296,6 +296,8 @@ config ARCH_CNS21XX
   4         select CPU_FA526
   5         select PLAT_FA
   6         select PLAT_FA_TIME
   7 +       select PLAT_FA_GPIO
   8 +       select ARCH_REQUIRE_GPIOLIB
   9         select ARM_L1_CACHE_SHIFT_4
  10         help
  11           Support for Cavium Networks CNS21xx family.
  12 --- a/arch/arm/mach-cns21xx/common.h
  13 +++ b/arch/arm/mach-cns21xx/common.h
  14 @@ -12,6 +12,7 @@
  15
  16  void __init cns21xx_map_io(void);
  17  void __init cns21xx_init_irq(void);
  18 +void __init cns21xx_gpio_init(void);
  19
  20  extern struct sys_timer cns21xx_timer;
  21
  22 --- /dev/null
  23 +++ b/arch/arm/mach-cns21xx/gpio.c
  24 @@ -0,0 +1,45 @@
  25 +/*
  26 + *  Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org>
  27 + *
  28 + *  This file is free software; you can redistribute it and/or modify
  29 + *  it under the terms of the GNU General Public License, Version 2, as
  30 + *  published by the Free Software Foundation.
  31 + */
  32 +
  33 +#include <plat/gpio.h>
  34 +
  35 +#include <mach/cns21xx.h>
  36 +#include <mach/irqs.h>
  37 +
  38 +static struct fa_gpio_chip cns21xx_gpio_chips[] = {
  39 +       {
  40 +               .gpio_chip = {
  41 +                       .label  = "GPIOA",
  42 +                       .base   = 0,
  43 +                       .ngpio  = 32,
  44 +               },
  45 +
  46 +               .map_base       = CNS21XX_GPIOA_BASE,
  47 +               .irq_base       = CNS21XX_GPIO_IRQ_BASE,
  48 +       }, {
  49 +               .gpio_chip = {
  50 +                       .label  = "GPIOB",
  51 +                       .base   = 32,
  52 +                       .ngpio  = 32,
  53 +               },
  54 +
  55 +               .map_base       = CNS21XX_GPIOB_BASE,
  56 +               .irq_base       = CNS21XX_GPIO_IRQ_BASE + 32,
  57 +       }
  58 +};
  59 +
  60 +static struct fa_gpio_data cns21xx_gpio_data = {
  61 +       .chips  = cns21xx_gpio_chips,
  62 +       .nchips = ARRAY_SIZE(cns21xx_gpio_chips),
  63 +       .irq    = CNS21XX_IRQ_GPIO,
  64 +};
  65 +
  66 +void __init cns21xx_gpio_init(void)
  67 +{
  68 +       fa_gpio_init(&cns21xx_gpio_data);
  69 +}
  70 --- /dev/null
  71 +++ b/arch/arm/mach-cns21xx/include/mach/gpio.h
  72 @@ -0,0 +1,30 @@
  73 +/*
  74 + *  Copyright (c) 2008 Cavium Networks
  75 + *  Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org>
  76 + *
  77 + *  This file is free software; you can redistribute it and/or modify
  78 + *  it under the terms of the GNU General Public License, Version 2, as
  79 + *  published by the Free Software Foundation.
  80 + */
  81 +
  82 +#ifndef _CNS21XX_GPIO_H
  83 +#define _CNS21XX_GPIO_H
  84 +
  85 +#include <asm-generic/gpio.h>
  86 +#include <mach/irqs.h>
  87 +
  88 +#define gpio_get_value __gpio_get_value
  89 +#define gpio_set_value __gpio_set_value
  90 +#define gpio_cansleep  __gpio_cansleep
  91 +
  92 +static inline int gpio_to_irq(unsigned gpio)
  93 +{
  94 +       return (CNS21XX_GPIO_IRQ_BASE + gpio);
  95 +}
  96 +
  97 +static inline int irq_to_gpio(int irq)
  98 +{
  99 +       return (irq - CNS21XX_GPIO_IRQ_BASE);
 100 +}
 101 +
 102 +#endif /* _CNS21XX_GPIO_H */
 103 --- a/arch/arm/mach-cns21xx/Makefile
 104 +++ b/arch/arm/mach-cns21xx/Makefile
 105 @@ -4,7 +4,7 @@
 106
 107  # Object file lists.
 108
 109 -obj-y          := core.o devices.o irq.o mm.o time.o
 110 +obj-y          := core.o devices.o gpio.o irq.o mm.o time.o
 111
 112  # machine specific files
 113