include/linux/vexpress.h

   1 /*
   2  * This program is free software; you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License version 2 as
   4  * published by the Free Software Foundation.
   5  *
   6  * This program is distributed in the hope that it will be useful,
   7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9  * GNU General Public License for more details.
  10  *
  11  * Copyright (C) 2012 ARM Limited
  12  */
  13
  14 #ifndef _LINUX_VEXPRESS_H
  15 #define _LINUX_VEXPRESS_H
  16
  17 #include <linux/device.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/reboot.h>
  20 #include <linux/regmap.h>
  21
  22 #define VEXPRESS_SITE_MB                0
  23 #define VEXPRESS_SITE_DB1               1
  24 #define VEXPRESS_SITE_DB2               2
  25 #define VEXPRESS_SITE_MASTER            0xf
  26
  27 #define VEXPRESS_GPIO_MMC_CARDIN        0
  28 #define VEXPRESS_GPIO_MMC_WPROT         1
  29 #define VEXPRESS_GPIO_FLASH_WPn         2
  30 #define VEXPRESS_GPIO_LED0              3
  31 #define VEXPRESS_GPIO_LED1              4
  32 #define VEXPRESS_GPIO_LED2              5
  33 #define VEXPRESS_GPIO_LED3              6
  34 #define VEXPRESS_GPIO_LED4              7
  35 #define VEXPRESS_GPIO_LED5              8
  36 #define VEXPRESS_GPIO_LED6              9
  37 #define VEXPRESS_GPIO_LED7              10
  38
  39 #define VEXPRESS_RES_FUNC(_site, _func) \
  40 {                                       \
  41         .start = (_site),               \
  42         .end = (_func),                 \
  43         .flags = IORESOURCE_BUS,        \
  44 }
  45
  46 /* Config infrastructure */
  47
  48 void vexpress_config_set_master(u32 site);
  49 u32 vexpress_config_get_master(void);
  50
  51 void vexpress_config_lock(void *arg);
  52 void vexpress_config_unlock(void *arg);
  53
  54 int vexpress_config_get_topo(struct device_node *node, u32 *site,
  55                 u32 *position, u32 *dcc);
  56
  57 /* Config bridge API */
  58
  59 struct vexpress_config_bridge_ops {
  60         struct regmap * (*regmap_init)(struct device *dev, void *context);
  61         void (*regmap_exit)(struct regmap *regmap, void *context);
  62 };
  63
  64 struct device *vexpress_config_bridge_register(struct device *parent,
  65                 struct vexpress_config_bridge_ops *ops, void *context);
  66
  67 /* Config regmap API */
  68
  69 struct regmap *devm_regmap_init_vexpress_config(struct device *dev);
  70
  71 /* Platform control */
  72
  73 u32 vexpress_get_procid(int site);
  74 u32 vexpress_get_hbi(int site);
  75 void *vexpress_get_24mhz_clock_base(void);
  76 void vexpress_flags_set(u32 data);
  77
  78 void vexpress_sysreg_early_init(void __iomem *base);
  79 void vexpress_sysreg_of_early_init(void);
  80 int vexpress_sysreg_config_device_register(struct platform_device *pdev);
  81
  82 /* Clocks */
  83
  84 void vexpress_clk_init(void __iomem *sp810_base);
  85
  86 #endif